MPEG portable sound reproducing system and a reproducing method thereof
Abstract
A PORTABLE MPEG SOUND PLAYBACK SYSTEM IS DESCRIBED, AND A PROCEDURE FOR PLAYING SOUND DATA COMPRESSED WITH THE USE OF THE MPEG PROCEDURE. THE SYSTEM OF THE INVENTION INCLUDES POWER SUPPLIES TO SUPPLY OPERATIONAL POWER TO THE SYSTEM, THE MEANS OF POWER SUPPLY PERFORMING THROUGH A SECONDARY BATTERY; MEANS OF PROCESS OF THE FOOD TO RECTIFY THE POWER SUPPLIED BY MEANS OF POWER SUPPLY BECOMING IT IN STABLE VOLTAGE AND CURRENT; INFORMATION DISPLAY MEANS TO SUBMIT NUMBERS AND COMBINATIONS OF LETTERS RELATED TO THE OPERATING STATES OF THE SYSTEM; CONTROL MEANS TO CONTROL ALL CONVERSION AND REPRODUCTION OPERATIONS OF SOUND DATA COMPRESSED WITH THE USE OF THE MPEG PROCEDURE; DATA STORAGE MEANS TO STORE SOUND DATA COMPRESSED BY MPEG IN A DESIGNATED ADDRESS, ACCORDING TO THE SIGNAL OUTPUT OF CONTROL MEANS; MEANS OF SELECTING INFORMATION TO SELECT GENERAL OPERATIONS THAT ALLOW TO PLAY, DOWNLOAD AND APPLY SELECTED SOUND DATA STORED IN THE DATA STORAGE MEDIA; SOUND PLAYBACK MEANS TO CONVERT SOUND DATA STORED IN DATA STORAGE MEDIA IN AN AUDIBLE FORMAT FOR USERS ACCORDING TO THE SIGNAL OUTPUT OF CONTROL MEANS; AND MEANS OF TRANSMISSION / RECEPTION TO TRANSMIT AND RECEIVE SOUND DATA AND EXTERNAL DEVICE PROGRAM DATA.

Term
Term ended
Projected expiry passed 17 April 2018, 8.4 years ago.
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10 claims: 3 independent, 7 dependent
- 1ES 2 287 968 T3 REIVINDICACIONES 1. Sistema portátil de reproducción de sonido MPEG, que comprende:unos medios de suministro de energía (100) para suministrar energía operativa al sistema, comprendiendo los medios de suministro de energía una batería secundaria;unos medios de procesamiento de energía (200) para corregir la energía suministrada desde los medios de suministro de energía para disponer una tensión y una intensidad de corriente estables;unos medios de visualización de la información (400) para visualizar números y combinaciones de letras referidas a estados operativos del sistema;unos medios de control (500) para controlar todas las operaciones de conversión y reproducción de datos de sonido comprimidos utilizando el procedimiento MPEG;unos medios de almacenaje de datos (600) para almacenar datos de sonido comprimidos utilizando el procedimiento MPEG en una dirección designada según las señales enviadas desde los medios de control;unos medios de selección de información (300) para seleccionar datos de sonido almacenados en los medios de almacenaje de datos y para seleccionar operaciones para operar sobre los datos de sonido seleccionados;unos medios de reproducción de sonido (700) para convertir los datos de sonido seleccionados almacenados en los medios de almacenaje de datos en un formato audible para los usuarios según las señales enviadas desde los medios de control;y unos medios de transmisión/recepción (800) para transmitir y recibir datos de sonido y datos de programa desde dispositivos externos, en el que los medios de procesamiento de energía (200) suministran corriente de carga a la batería secundaria de los medios de suministro de energía cuando los medios de procesamiento de energía (200) reciben energía externa a través de un adaptador, y en el que los medios de selección de información (300) comprenden: un conmutador de avance para avanzar a la selección siguiente al ser pulsado durante menos de un segundo, que reproduce de forma rápida la selección actual al ser pulsado de forma continua durante más de un segundo;un conmutador de retroceso para volver a iniciar la selección actual si la selección se encuentra en mitad de la reproducción o retroceder a la selección anterior si se encuentra entre selecciones al ser pulsado durante menos de un segundo, y que reproduce datos de forma rápida en sentido de retroceso cuando es pulsado de forma continua durante un período de tiempo superior a un segundo;un conmutador reproducir/parar para hacer que los medios de control detengan la reproducción de datos cuando se pulsa una vez mientras se encuentra en modo de reproducción de datos, para hacer que los medios de control inicien la reproducción de datos cuando se pulsa una vez mientras se encuentra en modo parada, y para hacer que los medios de control desconecten el suministro de energía eléctrica cuando se pulsa durante un período de tiempo predeterminado en el modo parada;un conmutador de repetición para volver a reproducir la selección actual al ser pulsado una vez, repitiendo todas las selecciones al ser pulsado dos veces, y cancelando todas las instrucciones de repetición al ser pulsado de forma continuada;y un conmutador de reproducción aleatoria para reproducir las selecciones en un orden aleatorio al ser pulsado.
- 2Sistema de reproducción de sonido según la reivindicación 1, en el que los medios de control comprenden:una CPU (501) para controlar operaciones relacionadas con la conversión de datos digitales almacenados utilizando el procedimiento MPEG a un formato audible;un controlador interruptor (503) para enviar una señal de control para controlar la CPU (501) cuando finaliza una operación de entrada/salida o se produce un error en la misma;un controlador de energía (505) para enviar señales de control para obtener un suministro de energía estable aplicado desde los medios de procesamiento de energía (200) como energía operativa de la CPU (501), y desconectar la energía cuando se produce un error;una interfaz de teclado (507) para interconectar señales de tecla selectoras aplicadas desde los medios de selección de información (300);ES 2 287 968 T3 un controlador de LCD (509) para controlar la corriente eléctrica suministrada a una matriz de los medios de visualización de información (400) para controlar la visualización durante la operación del sistema de reproducción de sonido;una interfaz de ROM ampliada (511) para interconectar una conexión con ROM ampliada, añadida para ampliar el ámbito de programas o memoria;un temporizador (513) para contar la información del tiempo necesario para descargar datos y reproducir los datos descargados y la interrupción de datos requerida para operar el sistema;un controlador de acceso al puente de bus (519) que envía señales de control para controlar un bus que transmite datos;un controlador (523) para controlar la entrada/salida de datos transmitidos y recibidos;un controlador (527) de memoria flash ROM para activar la memoria flash ROM según las señales de control del interruptor aplicadas desde la CPU;una interfaz DSP (529) que envía señales de control para controlar la entrada/salida de datos de sonido digitales comprimidos utilizando el procedimiento MPEG;y un dispositivo reloj (531) que procesa un reloj generador de un generador a un estado predeterminado y lo conduce a la CPU en forma de señales de reloj.
- 3Sistema de reproducción de sonido según la reivindicación 1, en el que los medios de almacenaje de datos (600) comprenden:una RAM (601) que es un elemento de memoria volátil que pierde datos cuando se desconecta la energía, para cargar el software de aplicación y almacenarlo temporalmente mientras se está ejecutando la operación de reproducción una vez se ha suministrado energía al sistema;y una memoria flash ROM (603) que es un elemento de memoria volátil que no pierde datos al desconectar la energía, para almacenar y borrar datos de sonido y datos relacionados con el software de aplicación u otros datos digitales.
- 4Sistema de reproducción de sonido según la reivindicación 1, en el que los medios de reproducción de sonido (700) comprenden:una parte DSP (701) para procesar datos de sonido digitales comprimidos utilizando el procedimiento MPEG a un estado predeterminado;y una parte de audio (703) que convierte la entrada de señales de sonido procedentes de la parte DSP a un formato audible.
- 5Procedimiento de reproducción de sonido para un sistema portátil de reproducción de sonido que comprende:suministrar energía operativa al sistema;corregir la energía suministrada al sistema para obtener una tensión y una intensidad de corriente eléctrica estables;visualizar números y combinaciones de letras referidos a estados operativos del sistema;controlar operaciones de conversión y reproducir datos de sonido comprimidos utilizando el procedimiento MPEG;almacenar datos de sonido comprimidos utilizando el procedimiento MPEG;seleccionar datos de sonido almacenados y operaciones para operar en los datos de sonido seleccionados;convertir los datos de sonido almacenados seleccionados en un formato audible para los usuarios;y transmitir y recibir datos de sonido y datos de programa desde dispositivos externos, en el que se suministra corriente de carga a una batería secundaria cuando se recibe energía externa a través de un adaptador, y en el que la selección de los datos de sonido almacenados comprende: pulsar durante menos de un segundo un conmutador de avance para avanzar a la selección siguiente, y pulsar de manera continua el conmutador de avance durante más de un segundo para reproducir de forma rápida la selección actual;ES 2 287 968 T3 pulsar durante menos de un segundo un conmutador de retroceso para volver a iniciar la selección actual si la selección se encuentra en mitad de la reproducción o para retroceder a la selección anterior si la pulsación se realiza entre selecciones, y pulsar de manera continua el conmutador de retroceso durante un período predeterminado de tiempo superior a un segundo para reproducir datos de forma rápida en sentido de retroceso;pulsar un conmutador reproducir/parar para detener la reproducción de datos al pulsar una vez en modo de reproducción de datos, para iniciar la reproducción de datos al pulsar una vez cuando se encuentra en modo parada, y para desconectar el suministro de energía eléctrica cuando se pulsa durante un período de tiempo predeterminado en el modo parada;pulsar un conmutador de repetición para volver a reproducir la selección actual al pulsar una vez, repetir todas las selecciones al pulsar dos veces, y cancelar todas las instrucciones de repetición al pulsar de forma continuada;y pulsar un conmutador de reproducción aleatoria para reproducir las selecciones en un orden aleatorio.
- 6Procedimiento de reproducción de sonido según la reivindicación 5, que comprende asimismo:inicializar el sistema cuando se suministra energía;cargar el programa principal y cargar automáticamente el software requerido;y descargar y reproducir los datos de sonido almacenados si se ha completado la instalación del entorno operativo, en el que el procedimiento comprende asimismo: detectar, una vez inicializados la CPU y todos los circuitos, si existen errores en el programa principal;y ejecutar el programa principal y finalizar la carga automática del software requerido si se detecta que el programa principal se encuentra en estado normal, y enviar una señal de error e interrumpir la ejecución posterior si se detectan errores en el programa principal, y en el que el procedimiento comprende asimismo: determinar, cuando se detecta que se han introducido señales de tecla desde los medios de selección de información, si la señal de tecla es una señal de DESCONEXIÓN de la energía;determinar, si la señal de tecla no es una señal de DESCONEXIÓN de la energía, si la señal de tecla es una señal de reproducción de datos de sonido;determinar, si la señal de tecla no es una señal de reproducción de datos de sonido, si la señal de tecla es una señal de avance;determinar, si la señal de tecla no es una señal de avance, si la señal de tecla es una señal de retroceso;determinar, si la señal de tecla no es una señal de retroceso, si la señal de tecla es una señal de parada;determinar, si la señal de tecla no es una señal de parada, si la señal de tecla es una señal de repetición;determinar, si la señal de tecla no es una señal de repetición, si la señal de tecla es una señal de reproducción aleatoria;y realizar las operaciones correspondientes a la señal detectada.
- 7Procedimiento de reproducción de sonido según la reivindicación 5 ó 6, en el que el procedimiento comprende asimismo:si se determina que la energía operativa de los medios de suministro de energía se encuentran en estado da carga bajo, comparar la energía detectada con un valor estándar predeterminado;si se determina que la energía detectada es excesivamente baja para operar el sistema, visualizar un mensaje de alarma, almacenar los datos actuales y desconectar la energía;y si se determina que la energía detectada es suficiente para continuar con la operación del sistema, visualizar un mensaje ordenando la carga del sistema.
- 8Procedimiento de reproducción de sonido según cualquiera de las reivindicaciones 5, 6 ó 7, en el que el procedimiento comprende asimismo:realizar la operación de reproducción de los datos de sonido utilizando la energía de una fuente de energía externa cuando se determina que está siendo suministrada energía desde la misma;y ES 2 287 968 T3 determinar el estado de energía de los medios de suministro de energía y realizar una operación de carga.
- 9Procedimiento de reproducción del sonido según cualquiera de las reivindicaciones 5 a 8, en el que el procedimiento comprende asimismo la visualización de la información de la selección de datos de sonido seleccionados y de la selección actualmente reproducida al detectar una señal de reproducción desde los medios de selección de la información.
- 10Procedimiento de reproducción del sonido según cualquiera de las reivindicaciones 5 a 9, en el que el procedimiento comprende asimismo:buscar datos recibidos desde un sistema de telecomunicaciones externo y determinar si existe un error en los datos;solicitar la nueva transmisión de los datos si se detecta que existe un error en los mismos;y almacenar los datos recibidos en una dirección designada una vez completada la recepción de los datos, si se detecta que no existe ningún error en los mismos.
Independent claims10
75 paragraphs in 1 section, as filed
ES 2 287 968 T3
DESCRIPTION
Portable MPEG sound reproduction system and its reproduction procedure.
Background of the Invention (a) Field of the Invention
The present invention relates to a portable system and to a sound reproduction method and, more particularly, to a portable sound reproduction system and to a reproduction method thereof in which the sound data, compressed using the MPEG ( Group of Experts in Moving Images) and stored in a memory device, they are converted to an audible format and broadcast through headphones, speakers, etc.
(b) Description of related art
Generally, the data processed to be listened to or viewed is stored in a memory medium and then transmitted through a playback device. The most common example comprises analog data stored on magnetic tapes that is output through a tape player, and digital data stored on a compact disc that is played through a compact disc player.
Recent discoveries in digital technology have enabled the use of memory media in personal computers, achieving vast improvements. Namely, the memory media used in PCs are becoming lighter and more compact and provide the user with greater storage memory capacity.
However, the increased memory required for running operating systems and application software represents a limitation for efficient use of memory media. In an attempt to solve this problem, various methods have been devised to allow efficient use of digital data. The MPEG standard is one of these procedures that increases the storage capacity of memory media by compressing the data stored in it.
That is, using the MPEG method of data compression, the data is compressed to a size of approximately one twelfth of the original size without compromising sound or visual quality. After compression of the data using appropriate software or hardware for this purpose, the data is stored on a storage medium, then returned to its original state using the MPEG procedure to arrange the data in a form that can be heard or heard. viewed by the user. Therefore, the MPEG method greatly increases the data storage capacity.
All conventional sound reproduction systems, ie tape players and compact disc players, personal computers, etc., equipped with the ability to reproduce MPEG compressed data, present many drawbacks for the user.
In particular, in the use of tape players, which reproduce data stored on magnetic tapes, since the same amount of time is necessary to store (record) data as to reproduce (reproduce), the storage process consumes time and the heat generated During the process it acts by deteriorating the quality of the engraving, reducing the quality of the reproduced sound. In addition, as the magnetic tape is easily worn, repetitive playback of the data stored on the cassette tape also works to reduce sound quality.
Compact disc players and the discs used in them also have many problems. Namely, it is not possible to record on compact discs. Furthermore, due to the mechanical fragility of CD players, playback failures occur when the players receive some external shock, however slight. Finally, CD players have a limited lifespan, as the mechanical parts of the device often break down over time.
Storage media used in tape and CD players also have the disadvantage of taking up a lot of space. In addition, users should take great care that storage media are stored in an area not exposed to heat or direct sunlight, etc.
With respect to prior art devices, such as PCs used to reproduce stored data using the MPEG procedure, when these devices are not portable, the place where users can access sound and images is limited to location Of the device. Furthermore, when the PC is used to reproduce compressed data using the MPEG method, the cost of equipping the PC with software or hardware to enable this function is high. On the other hand, since there are various types of sound data stored in a plurality of storage media, the user must acquire many kinds of storage media and carry out complicated processes to reproduce the data stored therein.
Finally, in all the above cases, users must bother to go to retail establishments to acquire storage media.
ES 2 287 968 T3
Other types of electronic devices are also known. For example, WO97 / 26744 discloses a portable multifunction telephone that provides, among other things, person-to-person MPEG4 audiovisual communications. The phone is capable of storing data and images and only supplies audio functions of receiving audio signals (via RF link) and sending them to a speaker, and receiving audio signals from the microphone and transmitting them (through the RF link). RF link). This phone does not have MPEG sound reproduction capability and therefore it is not a sound reproduction system of the present kind, since it does not comprise storage means for storing MPEG compressed sound data, nor selection means for select the stored sound data, or to play the selected stored sound data.
Document WO96 / 08006 discloses a recording / reproducing apparatus for recording audio information by means of a microphone and reproducing it by means of a speaker. Although it has several switches to control the operation of the apparatus, once again, the apparatus is not a sound reproduction system of the present type, as it does not store downloaded MPEG compressed sound data for reproduction.
Summary of the invention
The present invention has been carried out in an effort to solve the above problems. An object of the present invention is to provide a portable MPEG sound reproduction system and a method for reproducing the same that reproduces sound data compressed and stored on a memory chip using the MPEG method, in an audible format.
Accordingly, in one aspect, the invention provides a portable MPEG sound reproduction system, comprising power supply means for supplying operational power to the system, the power supply means comprising a secondary battery, power processing means for correcting the power supplied from the power supply means to provide a stable voltage and current, information display means for displaying numbers and letter combinations referring to operating states of the system control means for controlling all operations of conversion and reproduction of compressed sound data using the MPEG method, data storage means for storing data of compressed sound using the MPEG procedure in a designated direction according to the signals sent from the control means, information selection means for selecting sound data stored on the data storage means and for selecting operations to operate on the selected sound data, data reproduction means for converting the selected sound data stored on the data storage means data in a format audible to users according to signals sent from the control means; and transmitting reception means for transmitting and receiving sound data and program data from external devices, wherein the energy processing means supplies charging current to the secondary battery of the energy supply means when the energy processing means power receive external power through an adapter, and wherein the information selection means comprise an advance switch for advancing to the next selection when pressed for less than one second, which rapidly reproduces the current selection when continuously pressed for more than one second. , a backspace switch to restart the current selection if the selection is in the middle of playback or go back to the previous selection if it is between selections when pressed for less than a second, and which plays data quickly in the direction backspace when pressed continuously for a period of time greater than one second, a play / stop switch to make the control means stop data playback when pressed once while in data playback mode, to make the control means start data playback when pressed once while is in stop mode, and to cause the control means to disconnect the supply of electrical power when pressed for a predetermined period of time in stop mode, a repeat switch to replay the current selection when pressed once, repeating all selections when pressed twice, and canceling all repeat instructions when pressed continuously, and a shuffle switch to play the selections in a random order when pressed.
In a second aspect, the invention provides a sound reproduction method for a portable sound reproduction system that comprises supplying operational power to the system, correcting the power supplied to the system to obtain a voltage and an intensity of electric current stable, the display of numbers and letter combinations referring to the operating states of the system the control of operations for conversion and reproduction of compressed sound data using the MPEG method, the storage of compressed sound data using the MPEG method, the selection of stored sound data and operations to operate on the selected sound data the conversion of the selected stored sound data into a format audible to users and the transmission and reception of sound data and program data from external devices, in which charging current is supplied to a secondary battery when external power is received through an adapter, and wherein selecting the stored sound data comprises pressing an advance switch for less than one second to advance to the next selection, and continuously pressing the advance switch for more than one second to rapidly reproduce the current selection, pressing for less than one second of a backspace switch to restart the current selection if the selection is in the middle of playback or to go back to the previous selection if the press is made between selections, and continuous pressing of the reverse for a predetermined period of time greater than one second to play data quickly in the reverse direction, pressing a play / stop switch to stop data playback by pressing once in data playback mode, to start data playback by pressing once when in stop mode, and to disconnect power supply
ES 2 287 968 T3 when pressed for a predetermined period of time in stop mode, pressing a repeat switch to replay the current selection by pressing once, repeating all selections by pressing twice, and canceling all repeat instructions by pressing continuously, and pressing a shuffle switch to play your selections in a random order.
An advantage of at least one embodiment of the present invention is that it has a portable MPEG sound reproduction system which, by storing data in a semiconductor storage medium, avoids the generation of heat during recording, as in the case cassette tape player of the prior art, and prevents damage from exposure to heat, as in the case of cassette tapes, compact discs and other conventional storage media.
Another advantage of at least one embodiment of the present invention is that it has a portable MPEG sound player system that allows connection with telecommunications networks and data vending devices, so that various data can be downloaded allowing the user to enjoy the benefits of this system - speed, comfort, variety, etc.
Another advantage of at least one embodiment of the present invention is that it has a portable MPEG sound reproducing system in which the data downloaded through telecommunications networks and data vending devices, as in the previous case, are accessible and can be saved using a personal computer.
Another advantage of at least one embodiment of the present invention is that it provides a portable MPEG sound player system that does not require separate storage media, as in the case of tape players and compact disc players, so that The device can be manufactured to be thin and light in shape, and the need for physical storage space for storing the storage media is avoided.
Brief description of the drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention and, taken in conjunction with the description, serve to explain the principles of the invention:
Figure 1 is a block diagram of a portable MPEG sound player system according to a preferred embodiment of the present invention;
Figure 2 is a detailed block diagram of the portable MPEG sound player system of Figure 1; and Figures 3a-3f are flowcharts of a playback method for a portable MPEG sound player system according to an embodiment of the present invention.
Detailed description of preferred embodiments
Preferred embodiments are described in detail below with reference to the accompanying drawings.
With reference, first of all, to Figure 1, a portable MPEG sound reproducing system according to the invention comprises an electric power supply part 100, an electric power processor 200, an information selector 300, a display part information 400, a control part 500, a data storage part 600, a sound reproduction part 700, and a transmitter / receiver 800.
The electrical power supply part 100 is realized by a nickel-cadmium (NiCd), nickel-metal hydride (Ni-MH), lithium-ion or lithium-polymer secondary battery, and converts the chemical energy into electrical energy for the supply of the same to the portable sound reproducing system. Furthermore, the electric power supply part 100 is rechargeable by electricity supplied through an adapter.
The electric power processor 200 receives electric power from the power supply part 100 or directly through the adapter, rectifies the electric power to obtain a stable electric voltage current, and supplies the electric power to the control part 500 as power. drive. Upon receiving electrical power through the adapter, the electrical power processor 200 supplies electrical power to the power supply portion 100 for recharging.
The information selector 300 is operated by various predetermined keys actuated by the user and sends electrical signals, according to the user's selections, to control the supply of electrical power, extract data for reproduction, control the various functions related to data reproduction and transmit and receive data.
In more detail, the information selector 300 comprises an advance switch for advancing to the next selection when depressed for less than a predetermined period of time, preferably less.
ES 2 287 968 T3 of one second, which reproduces data quickly when pressed continuously for a predetermined amount of time, preferably greater than one second; a backspace switch to restart the current selection if the selection is in the middle of playback or go back to the previous selection if it is between selections when pressed for less than a predetermined amount of time, preferably less than a second, and that rapidly reproduces data in the reverse direction when continuously pressed for a predetermined period of time, preferably greater than one second; a play / stop switch for playing data when pressed once and, in the data playback state, interrupting the data playback in progress by pressing it again, disconnecting the power supply; a repeat switch for replaying the current selection when pressed once, repeating all selections when pressed twice, and canceling all repeat instructions when pressed for a predetermined time, preferably greater than three seconds; and a random play switch for playing the selections in random order when pressed.
The information part 400 is realized through an LCD screen (liquid crystal display) and displays various numbers and letters related to the various modes performed by the above switches.
The control part 500 controls all the various operations for storing and reproducing compressed sound data using the MPEG method. The control part 500, as shown in Figure 2, comprises a CPU (central processing unit) 501 for controlling operations related to the conversion of stored digital data using the MPEG method to an audible format; a switch controller 503 for sending a control signal to control CPU 501 when an input / output operation completes or an error occurs; a power controller 505 for sending control signals to obtain a stable power supply applied from the power processing means 200 as operating power of the CPU 501, and turning off the power when an error occurs; a keyboard interface 507 for interconnecting selector key signals applied from the information selection means 300; an LCD controller 509 for controlling the electrical current supplied to an information display means matrix 400 to control the display during operation of the sound reproduction system; an extended ROM interface 511 for interfacing a connection with extended ROM, added to expand the scope of programs or memory; a timer 513 for counting information on the time required to download data and reproduce the downloaded data and the data interruption required to operate the system; a bus bridge access controller 519 that sends control signals to control a bus that transmits data; a controller 523 for controlling the input / output of transmitted and received data; a flash ROM memory controller 527 for activating the flash ROM memory 603 in accordance with switch control signals applied from the CPU 501; a DSP (digital signal processor) interface 529 that outputs control signals to control input / output of compressed digital sound data using the MPEG method; and a clock device 531 that processes a generator clock from a generator 1000 to a predetermined state and drives it to the CPU 501 in the form of clock signals.
All of the above elements of the control part 500 are connected through a combination of an interrupt line and an I / O bus.
The data storage part 600 stores compressed sound data using the MPEG method downloaded through the transmitter / receiver 800 according to the signals from the control part 500. In addition, as shown in figure 2, the data storage part is carried out through the flash memory ROM 603, which is a volatile memory element that does not lose data when the power is cut, to store and erase sound and data, and data related to application software and other digital data.
The sound reproduction part 700 converts the sound data stored in the storage part 600 into an audible format according to the signals applied from the control part 500. The sound reproduction part 700, as shown in FIG. 2, comprises a DSP part 701 for returning compressed digital sound data to its original state using the MPEG method, an audio part 703 which converts the input of sound signals from the DSP part 701 to an audible format, and headphones / speakers 705 to convert the electrical sound signals input from the audio part 703 into sound that can be heard by users.
Transmitter / receiver 800 is connected to a PC, data vending device, or other external device of this kind and transmits sound or data to it, or receives sound or program data from it.
A preferred method of playback of compressed data using the MPEG method for the portable sound reproduction system structured in the above manner will now be described by joint consideration of Figures 3a to 3f.
First, if the user presses an ON switch of the information selector 300 to play and listen to specific sound data from among all the digital data compressed using the MPEG method and stored in the data storage part 600, the CPU 501 of the control part 500 activates an operating mode by receiving electrical power through the power processor 200 from the power supply part 100 or the adapter (S1000).
ES 2 287 968 T3
Next, the CPU 501 executes the main program and completes the startup of the required software (S1300), then determines whether the information selector 300 key signals, input through the keyboard interface 507, and the bus are detected. MRM / IO (S1400).
If key signals have been detected in step S1400, it is determined whether there is a power OFF selection signal, selected by the user to turn off the electrical power supplied by power processor 200 (step S1410). If the power OFF signal is detected, the operating power applied from the power processor 200 is turned off and the system enters the standby mode (S1415).
If no power OFF signal is detected in step S1400, it is detected whether there has been an input of a sound reproduction signal to restore and reproduce a selection of compressed data using the MPEG procedure and has been stored in memory. flash ROM 603 of data storage part 600 (S1420).
If in step 1420 it is determined that the key signal is a play key signal for reproducing sound data stored in the data storage part 600, the CPU 501 loads the selected sound data into the DSP part 701 of the sound reproduction part 700, through the DSP 529 interface of the control part 500, then, using the operating system software, return the compressed data to its original state using the MPEG procedure., converts the data into an electrical sound signal through the audio portion 703 of the sound reproducer portion 700, and converts the electrical signal into a user-audible sound signal and outputs it through the headphones / speakers 705 (S1425).
In step 1420, if it is detected that the key select signal is not a signal for reproducing sound data or if the system is currently reproducing data, it is then detected whether a forward signal has been input (S1430). If in step S1430 an advance signal is detected, the CPU 501 determines whether the advance selection signal is transmitted for a period of time less than a predetermined amount of time less than one second, and in the case that this criterion the selection is fulfilled advances to the next selection and executes a playback operation, and also determines whether the forward selection signal is transmitted for a period of time greater than a predetermined amount of time of more than one second, and if this is the case, the current selection is played at fast speed (S1435).
In step S1430, if a forward key signal is not detected, it is determined whether a backward key signal has been input (S1440). If so, the current selection being played is started again, or if the backspace key has been entered between selections, the previous song is selected if the backspace signal has been transmitted for a period less than a predetermined time preferably less of a second, or the currently playing selection rewinds rapidly if the rewind signal is transmitted for a period of time greater than a predetermined amount of time preferably greater than one second (S1445).
If a reverse signal is not detected in step S1440, then it is detected whether a stop signal has been input (S1450). If a stop signal is detected, it is determined by an installed program whether a signal has been input a predetermined number of times preferably once and the current mode is the playback mode, in which case the current playback operation is interrupted, and if it is in stop mode, playback resumes. Furthermore, in a state in which the playback mode has been interrupted, if it is detected that the stop signal has been transmitted for a predetermined amount of time, preferably more than three seconds, the standby power is set to OFF (S1455 ).
In the cap S1450, if no stop signal is detected or it is determined that the system is in play mode, then it is determined whether a repeat signal has been input (S1460). If a repeating signal is detected, then the number of input times is determined using an installed program, so that the current selection is repeated when it is detected that the signal has been input a predetermined number of times, preferably once, all sound data stored in flash ROM 603 is repeated when the input of two signals is detected, and any repeat instruction is cleared when it is detected that the signal has been input during a repeat operation (S1465).
Also, if no repeat signal is detected in step 1460, then it is determined whether a random playback signal has been input (S1470). If a random playback signal is detected at this step, the selections are reproduced in an order. random (S1475), and if a random playback signal is not detected, the playback operation of the compressed sound data is repeated using the MPEG method.
In the above state, in which the user-selected data is being played according to input of key signals from the information selector 300, the operating power is analyzed in the power processor 200 to determine whether there is a state of Low power in the power supply part 100 that does not allow a playback operation to be performed (S1500). If it is determined in step 1500 that the power supply portion 100 is in the Low Power state, then it is determined whether the current electrical voltage is less than a predetermined standard value, which would prevent normal playback of the power data. sound (S1510).
ES 2 287 968 T3
In the above state, if it is determined that the voltage of the power supply part 100 is lower than the predetermined standard value, the control part 500 sends a predetermined control signal to display an alarm to the LCD controller 509 through the MEM bus. / IO. The LCD controller 509 adjusts the power supplied to the information display portion matrix 400 so that a "Power off" message (S1520) is displayed thereon.
Simultaneously with the display of the message "Power off", the CPU 501 of the control part 500 inputs a data storage signal into the Flash ROM 603 of the data storage part 600 so that the current state is saved. (S1530) and controls the power controller 505 through the MEM / IO bus to disconnect the power supply to the power processor (S1540).
In step 1510, if it is determined that the voltage of the power supply part 100 is higher than a predetermined standard value, allowing normal operation of the system, the control part 500 controls the information display part 400 through l LCD controller 509 to display a “Low Power” message (S1550).
After checking the power status, in step S1500, the CPU 501 of the control part 500 determines whether the power processor 200 is connected to an external power source through the adapter (S1600). If in step 1600 it is detected that there is a connection with an external power source, then it is determined whether the power supply part 100 is fully charged (S1610).
In the above state, if it is determined that the power supply part 100 is fully charged, the charging operation is interrupted to prevent overload deterioration of the power supply part 100, and if it is determined that the power supply 100 is not fully charged, then it is determined whether power is being supplied from an external source through the adapter (S1620). If power is being supplied from an external source in a state in which the power supply part 100 is not fully charged, power is supplied to the power supply part 100 to fully charge it (S1630).
After step 1600, in which it is determined whether there is a connection with an external power source, it is then determined whether sound data is being reproduced according to selections made by the user in the information selector 300 (S1700). If sound data is being played at this stage, the CPU 501 of the control part 500 analyzes the sound data check, for example, data playing time, selection title, music type, playing time remaining of the selection, etc. and displays the information by the information display part 400 controlling the LCD controller 509 (S1710).
Furthermore, the CPU 501 of the control part 500 accesses the compressed sound data using the MPEG method in the flash ROM 603 of the data storage part 600, and transmits this sound data to the DSP part 701 of the sound reproduction part 700 via DSP 529 interface. Consequently, the DSP part 701 processes the compressed digital sound data using the MPEG method for a given state and converts it to sound signals through the audio part 703 and then plays the sound data through headphones / speakers so that the user can hear the sound (S1720).
Next, it is determined whether the selected sound data has been fully reproduced. (S1730). If so, flash ROM 603 searches for the next selection of sound data (S1740) and sound data to be played is loaded from flash ROM 603 and preparation for playing sound data is performed (S1750 ).
After step S1700, in which it is determined whether sound data is being reproduced, the CPU 501 of the control part 500 analyzes the signals from the controller 523 to determine whether the transmitter / receiver 800 is connected to a telecommunications system. external, for example from a computer that has a modem or other communications device installed on it, or to a data vending device that sells a variety of data and music programs, video games, etc. (S1800).
If in step 1800 it is determined that the transmitter / receiver 800 is connected to an external telecommunications system, the system according to the invention changes to data download, the data is downloaded (S1810) and it is determined whether there is an error in the data. downloaded data (S1820).
In the above state, if it is determined that there is an error in the downloaded data, the CPU 501 of the control part 500 performs the control so that the data is retransmitted and if there is no error in the data, the data is stored ( S1830). In addition, if it is determined that there is no error in the transmitted data in step 1820, the CPU 501 determines whether the transmission of the data is completed (S1840), designates an address sphere in the data storage part 600. and then download and save the data (S1850).
The portable MPEG sound reproduction and MPEG method compressed data reproduction system for reproduction, as described above, in which sound data is compressed using the MPEG method and stored in a semiconductor chip or other component of memory and then played back in a format audible to the user, offers the convenience of eliminating the need for discs, tapes,
ES 2 287 968 T3
CDs and other similar memory media and to overcome many of the drawbacks of using memory media in prior art playback devices - reduction in sound quality after repeated recordings or reproductions, etc.
Furthermore, since it is possible to connect the system according to the invention to telecommunications networks and data vending devices to download various data, the user benefits from the advantages of convenience and low cost.
Other embodiments will become apparent to those skilled in the art from a consideration of the specification and practice of the invention set forth herein. It is understood that the specification and examples are provided by way of example only, and the actual scope of the invention is indicated by the following claims.
6 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6
39 members in 7 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 19970062315 | Republic of Korea | A | |
| 19970062315 | Republic of Korea | A | |
| 19970062315 | Republic of Korea | – | |
| 982012359762315 | – | – | – |
| KR19970062315 | – | – | – |
Members39
| Document | Office | Kind | |
|---|---|---|---|
| KR980004714A | Republic of Korea | A | |
| CN1218258A | China | A | |
| EP0924708A2 | European Patent Office (EPO) | A2 | |
| JPH11175099A | Japan | A | |
| EP0924708A3 | European Patent Office (EPO) | A3 | |
| KR100287366B1 | Republic of Korea | B1 | |
| US2002072818A1 | United States of America | A1 | |
| US6629000B1 | United States of America | B1 | |
| CN1133167C | China | C | |
| US7065417B2 | United States of America | B2 | |
| EP1684300A2 | European Patent Office (EPO) | A2 | |
| EP1688954A2 | European Patent Office (EPO) | A2 | |
| US2006195206A1 | United States of America | A1 | |
| EP1684300A3 | European Patent Office (EPO) | A3 | |
| EP1688954A3 | European Patent Office (EPO) | A3 | |
| US2007038319A1 | United States of America | A1 | |
| US2007038320A1 | United States of America | A1 | |
| US2007112448A1 | United States of America | A1 | |
| US2007112449A1 | United States of America | A1 | |
| US2007112450A1 | United States of America | A1 | |
| EP0924708B1 | European Patent Office (EPO) | B1 | |
| DE69837907D1 | Germany | D1 | |
| EP1826767A2 | European Patent Office (EPO) | A2 | |
| EP1843353A2 | European Patent Office (EPO) | A2 | |
| EP1843354A2 | European Patent Office (EPO) | A2 | |
| EP1826767A3 | European Patent Office (EPO) | A3 | |
| US2007276522A9 | United States of America | A9 | |
| EP1843353A3 | European Patent Office (EPO) | A3 | |
| ES2287968T3This record | Spain | T3 | |
| EP1843354A3 | European Patent Office (EPO) | A3 | |
| US2008004730A9 | United States of America | A9 | |
| DE69837907T2 | Germany | T2 | |
| US2012029673A1 | United States of America | A1 | |
| US8116890B2 | United States of America | B2 | |
| US8170700B2 | United States of America | B2 | |
| US8175727B2 | United States of America | B2 | |
| US8214064B2 | United States of America | B2 | |
| US8615315B2 | United States of America | B2 | |
| US8843225B2 | United States of America | B2 |
Numbers
- Publication
- 2287968
- Publication, DOCDB
- 2287968
- Publication, EPODOC
- ES2287968T
- Application
- 98201235
- Application, DOCDB
- 98201235
- Application, EPODOC
- ES19980201235T
Titles2
- Spanish
- SISTEMA PORTATIL DE REPRODUCCION DE SONIDO MPEG Y SU PROCEDIMIENTO DE REPRODUCCION.
- English
- PORTABLE MPEG SOUND PLAYBACK SYSTEM AND ITS PLAYBACK PROCEDURE.
Classification
- CPC, 12
- G11C7/16
- G11B20/00
- G06T9/007
- G11B20/10
- G11B27/105
- G11B2020/00014
- G11B2020/00057
- G11B2020/10546
- G11B2220/61
- G11C5/141
- G11C7/1006
- G11C2207/16
- IPC, 7
- G06F3 16
- G11C7 00
- G06T9 00
- G10L19 00
- G11B20 00
- G11C5 14
- G11C7 16