Dual mode headset device

Mono/stereo dual-use earphone device

The present invention provides an audio playback device, especially a single-tone/stereo dual-purpose earphone device.

In the modern information society where multimedia products are booming, multimedia products such as computers, mobile phones and MP3s provide great entertainment for human beings. Among these multimedia products, portable electronic products often require the support of headphones to achieve the best entertainment. Effect and convenience. At present, the earphones on the market can be divided into two categories: Mono Headset and Stereo Headset, while the monophone is mainly used for the hands-free device of the mobile phone, if it is equipped with a Bluetooth-equipped mobile phone. After connecting, the user can directly answer the call through the headset. In general, in order to improve the convenience of the speakerphone, the general monophonic earphone design is demanded by lightness and thinness; however, since only the single ear design and the sounding component are limited to the voice audio frequency range (300~3KHz), Suitable for listening to stereo music.

Stereo headphones are mainly used for music appreciation, so they are designed to be stereo-mounted to achieve stereo requirements. In general, the wearing method can be divided into head-mounted, neck-mounted and ear-hook, most of the Bluetooth. Stereo headphones will support the call answering function of the mobile phone at the same time, but because of its large size, it is difficult to store. If it is used as a wireless wireless handset, the portability is greatly reduced.

The present invention provides a headphone device that combines the convenience of a single-tone earphone with the sound quality of a stereo earphone, and has a detachable structure design of two ears, so that a single ear can be worn as a handset-free handset, and both ears can be worn. Used as a stereo headset to solve the above problems.

According to an embodiment of the present invention, an earphone device is disclosed. The earphone device comprises: a first earphone, a second earphone and a transmission line. The first earphone includes: a first housing; an interface module for receiving an audio signal; and a signal processing module electrically connected to the interface module for separating the audio signal into a first sound And a second channel signal; an amplifying circuit electrically connected to the signal processing module for respectively amplifying the first and second channel signals to generate a first amplified signal and a second amplified signal; And a first speaker electrically connected to the amplifying circuit for outputting a corresponding sound according to the first amplified signal. The second earphone includes: a second housing; and a second speaker for outputting a corresponding sound according to the second amplified signal. The transmission line is electrically connected to the amplifying circuit and the second speaker, and transmits the second amplified signal to the second earphone by using the first earphone.

Please refer to FIG. 1 , which is a functional block diagram of an embodiment of the authoring earphone device 100 . As shown in FIG. 1, the earphone device 100 includes a first earphone 110, a second earphone 130, and a transmission line 150. The first earphone 110 receives an audio signal by wire or wirelessly, and generates a first amplified signal (for example, an audio signal corresponding to the left channel) and a second amplified signal (for example, an audio signal corresponding to the right channel) according to the audio signal. If the second earphone 130 is not coupled to the first earphone 110 through the transmission line 150, the first earphone 110 outputs the corresponding sound according to the first amplified signal as a Mono Headset. On the other hand, If the second earphone 130 is coupled to the first earphone 110 through the transmission line 150, the first earphone 110 transmits the second amplified signal to the second earphone 130 via the transmission line 150, and the first earphone 110 is in accordance with the first amplified signal. The corresponding sound is output and the second earphone 130 outputs a corresponding sound according to the second amplified signal as a stereo earphone.

As shown in FIG. 1 , the first earphone 110 is provided with an interface module 114 , a signal processing module 116 , an amplifying circuit 118 , and a first speaker 120 . The interface module 114 receives the audio signal S from an external device (such as a mobile phone or an MP3 player)._i_n. The signal processing module 116 is electrically connected to the interface module 114 for using the audio signal S_i_nSeparated into a first channel signal S₁With a second channel signal S₂Where the first channel signal S₁Corresponding to the left channel, then the second channel signal S₂Corresponding to the right channel, conversely, if the first channel signal S₁Corresponding to the right channel, the second channel signal S₂It corresponds to the left channel. The amplifying circuit 118 is electrically connected to the signal processing module 116 for amplifying the first channel signal S₁Generating a first amplification signal SA₁And amplifying the second channel signal S₂Generating a second amplification signal SA₂. The first speaker 120 is electrically connected to the amplifying circuit 118 for using the first amplified signal SA.₁Output the corresponding sound.

The second earphone 130 has a second speaker 134, and when the second earphone 130 is connected to the first earphone 110 via the transmission line 150, the second speaker 134 can receive the second amplified signal SA via the transmission line 150.₂To output the corresponding sound. In this embodiment, the transmission line 150 includes a sound source line 151 and a power line 152, wherein the sound source line 151 is used to electrically connect the amplifier circuit 118 to the second speaker 134 to transmit the second amplified signal SA.₂The second earphone 130 is transmitted to perform audio playback of another channel.

In this embodiment, the second earphone 130 has a cord reel 136 for accommodating the transmission line 150, that is, one end of the transmission line 150 is fixed in the cord reel 136, and the other end is used to be pluggable. A port 122 on a headphone 110. Please refer to FIG. 2, which is an external view of the earphone device 100 shown in FIG. 1. As shown in FIG. 2, the first earphone 110 has a first housing 112 for protecting and fixing internal components of the first earphone 110 (for example, the interface module 114, the signal processing module 116, the amplifying circuit 118, and the first The speaker 120), wherein the first housing 112 is provided with a connection port 122; on the other hand, the second earphone 130 has a second housing 132 for protecting and fixing the internal components of the second earphone 110 (for example, the reel 136) With the second speaker 134). If the first earphone 110 itself is used as a single-tone earphone, the principle is similar to the prior art, and will not be described here. However, if the user has a need to use a stereo earphone, the transmission line 150 can be from the second earphone 130. The cord reel 136 pulls out the appropriate length and inserts the end plug into the port 122 so that the second amplified signal SA can be utilized by the source line 151 in the transmission line 150.₂The second earphone 130 is transmitted to drive the second speaker 134, and the user can hear the stereo effect.

As shown in FIG. 1 , the first earphone 110 is further provided with a first power supply device 160 and a power switch 164 , and the second earphone 130 is further provided with a second power supply device 162 . The first power supply device 160 serves as a power supply system for the first earphone 110, and the power switch 164 is used to switch the first earphone 110 to use the voltage V supplied by the first power supply device 160.₁Or the voltage V supplied by the second power supply device 160₂Please note that the second power supply device 162 itself is also the power supply system of the second earphone 130. In this embodiment, when the first earphone 110 is only used as a single-tone earphone, the power switch 164 selects the first power supply device 160 to provide the operating voltage V required for the operation of the first earphone 110 (V=V).₁However, when the second earphone 130 is connected to the first earphone 110 via the transmission line 150 to form a stereo earphone, the power line 152 designed in the transmission line 150 couples the second power supply device 162 to the power switch 164. The power switch 164 can select the operating voltage V (V=V) required for the operation of the first earphone 110 by the second power supply device 162.₂In this way, the usage time of the first power supply device 160 can be increased.

In this embodiment, the first power supply device 160 includes a battery and a charger, so when the connection port 166, for example, a USB port, is externally connected to an external power source, the first power supply device 160 can be connected via the external power source. In addition, the second power supply device 162 also includes a battery and a charger, so the second power supply device 162 can also perform a charging operation via the external power source and the power line 152. Please note that the present invention is not limited thereto. For example, in other embodiments, the first earphone 110 does not have the connection port 166 and the first power supply device 160 is only a normal battery, and the second power supply device 162 It is also only an ordinary battery and is also within the scope of this creation.

Please refer to FIG. 3, which is a flow chart of selecting the power source of the earphone device 100 shown in FIG. 1. The operation of the headphone device 100 to select a power source is as follows: Step 300: Power on.

Step 310: Determine whether the first earphone 110 and the second earphone 130 are combined via the transmission line 150. If yes, go to step 320; otherwise, go to step 330.

Step 320: Detect whether the supply voltage of the second power supply device 162 reaches a predetermined value. If yes, go to step 322; otherwise, go to step 324.

Step 322: The second power supply device 162 supplies power to the first and second earphones 110, 130. Then, the process returns to step 320 to continuously detect whether the supply voltage of the second power supply device 162 still reaches the predetermined value.

Step 324: The first and second earphones 110, 130 are respectively powered by the first and second power supply devices 160, 162.

Step 326: Does one of the first and second power supply devices 160, 162 have sufficient power? If yes, go to step 324; otherwise, go to step 332.

Step 328: Powering the first earphone 110 by the first power supply device 160.

Step 330: Is the first power supply device 160 insufficiently powered? If yes, go to step 332; otherwise, go back to step 328.

Step 332: Shut down.

In the implementation of the present invention, when the first earphone 110 is used as a single-tone earphone, the power consumption is small, so the first power supply device 160 is equipped with a small-capacity battery, which effectively reduces the volume and weight, and when combined with the ears as a stereo earphone At the time, the required power consumption is large, so the second power supply device 162 is equipped with a large-capacity battery. Therefore, when the second earphone 130 is connected to the first earphone 110 via the transmission line 150 to form a stereo earphone, the power line 152 designed in the transmission line 150 couples the second power supply device 162 to the power switch 164. The power switch 164 can select the operating voltage required for the operation of the first earphone 110 and the second earphone 130 by the second power supply device 162 (step 322), so that the first power supply device 160 can be upgraded. usage time. However, when the supply voltage of the second power supply device 162 is insufficient, the first and second power supply devices 160, 162 respectively supply power to the first and second earphones 110, 130 (step 324), and further, when the first When the earphone 110 is only used as a single tone earphone, the power switch 164 selects the first power supply device 160 to provide an operating voltage required for the operation of the first earphone 110 (step 328).

Please refer to FIG. 4, which is a flow chart of charging the earphone device 100 shown in FIG. 1. In this embodiment, the first and second power supply devices 160, 162 each include a battery and a charger, and thus can be stored via a charging operation. The charging operation includes the following steps: Step 400: Connect an external power source.

Step 410: Is the first earphone 110 and the second earphone 130 combined? If yes, go to step 420, otherwise, go to step 430.

Step 420: Charging the first power supply device 160 and the second power supply device 162.

Step 426: Are the voltages of the first power supply device 160 and the second power supply device 162 all charged to a specific voltage level? If yes, then go to step 440; otherwise, go back to step 420.

Step 430: Charging the first power supply device 160.

Step 435: Is the voltage of the first power supply device 160 charged to a specific voltage level? If yes, then go to step 440; otherwise, go back to step 430.

Step 440: End charging.

When the earphone device 100 is to be charged, the first earphone 110 and the second earphone 130 are first coupled via the transmission line 150, and then the connection port 166 on the first earphone 110 is connected to an external power source (step 400), and then the external power source The first power supply device 160 and the second power supply device 162 are charged (step 420). In addition, the first power supply device 160 of the first earphone 110 may be separately charged. At this time, the second earphone 130 is charged. The first earphone 110 is not coupled via the transmission line 150. When the connection port 166 on the first earphone 110 is connected to an external power source (step 400), the external power source charges the first power supply device 160 ( Step 430).

In addition, in the embodiment shown in FIG. 1 , the connection port 122 is disposed on the first earphone 110 , and the reel 136 is disposed on the second earphone 130 . Therefore, one end of the transmission line 150 is fixed to the second earphone 130 . The upper and the other ends are connected to the port 122 in a pluggable manner. This is an embodiment in which the first earphone 110 and the second earphone 130 are connected. However, in another embodiment of the present invention, a connection port (not shown) electrically connected to the second speaker 134 may be further disposed on the second housing 132 of the second earphone 130 for receiving the second amplified signal. The two ends of the transmission line 150 are connected to the connection ports of the first and second earphones 110 in a pluggable manner. In this case, the second earphone 130 does not have the aforementioned reel 136. In this embodiment, the technical content taught in FIG. 3 and FIG. 4 can also be used to perform power selection and charging operations. Furthermore, in another embodiment of the present application, the connection shown in FIG. 1 The cymbal 122 is disposed on the second housing 112 of the second earphone 130, and the cord reel 136 is disposed in the first earphone 130. At this time, one end of the transmission line 150 is fixed on the first earphone 130 and the other end is The connection port on the second earphone 130 is connected in a pluggable manner. Similarly, this embodiment can also apply the technical contents taught in FIGS. 3 and 4 to perform power selection and charging operations. The above changes are within the scope of this creation.

Please refer to FIG. 5, which is a functional block diagram of a second embodiment of the authoring earphone device 500. As shown in FIG. 5, the earphone device 500 includes a first earphone 510, a second earphone 530, a transmission line 550, and a cord reel 536. The operation mode of the first earphone 510, the second earphone 530, and the transmission line 550 is similar to that of the earphone device 100 in the first embodiment, and the difference is that the second housing 532 of the second earphone 530 does not include the reel. 536. In this embodiment, the cord reel 536 is movably disposed on the transmission line 550.

Please refer to FIG. 6. FIG. 6 is an external view of the earphone device 500 shown in FIG. 5. As shown in FIG. 6, if the first earphone 510 itself is used as a single-tone earphone or a stereo earphone, the principle is similar to the prior art, and details are not described herein again. Please note that in this embodiment, the connection may be 122 and the port 166 are integrated into a port 522. When used as a stereo headphone, the end plug 153 of the transmission line 150 is inserted into the port 522. When charging, the head unit 500 is charged by the port 522 connected to an external power source. .

In addition, in the present embodiment, the end plug 153 of the transmission line 150 is a USB plug that can be connected to an external power source (for example, a desktop computer, a notebook computer, etc.) to charge the second power supply device 162. Please note that the principle of the discharge operation of this embodiment is the same as that of the first embodiment. However, in another embodiment of the present invention, the second earphone is not provided with the second power supply device 162, so that the second earphone is required. The voltage will be supplied by the first power supply device 160. In addition to the above, the second earphone 530 may also be an earphone that does not have the second power supply device 162.

Please refer to FIG. 7. FIG. 7 is a perspective view showing the second embodiment of the present invention in which the cord reel 536 is disposed on the transmission line 150. As shown in FIG. 7, the cord reel 536 includes a body 710, a first recess 730, and a second recess 740. The body 710 has a hole 720 through which the transmission line 150 passes to cause the body 710 to be movably disposed on the transmission line 150. The first recess 730 is disposed on the body 710 for receiving the end plug 153 of the transmission line 150. The second recess 740 is disposed at a side of the body 710 for surrounding the flexible portion of the transmission line 150 on the side of the body 710 to fix the transmission line 150.

Please refer to FIG. 8. FIG. 8 is a schematic perspective view of the second embodiment of the present invention for accommodating the transmission line 150 by the reel 536. As shown in FIG. 8, when the reel 536 is used to receive the transmission line 150, the transmission line 150 is moved away from the reel 536, the end plug 153 of the transmission line 150 is fixed in the first recess 730, and then the transmission line 150 is surrounded. The transmission line 150 is fixed on the second recessed portion 740, and the storage is completed as shown in FIG. 9. FIG. 9 is a perspective view showing the second embodiment of the present invention in which the transmission line 150 is housed in the reel 536.

Please note that in the above embodiment of the present invention, the interface module 114 is a wireless interface module that receives the audio signal S by wireless communication._i_nAnd the wireless interface module is a Bluetooth module for establishing a radio connection in a frequency band under the Bluetooth specification, so that the user can use the earphone device 100 within a certain distance. However, in other embodiments of the present invention, the interface module 114 can also be implemented by a wired interface module. At this time, the interface module 114 receives the audio signal S by means of wired communication._i_nIt is also within the scope of this creation.

Compared with the conventional technology, this creation not only can take into account the convenience of the single-tone earphones and the sound quality of the stereo headphones, but also proposes a detachable structure design of the two ears, which can be worn as a mobile phone hands-free handset, and can also be equipped with Wear both ears as a stereo headset.

The above descriptions are only preferred embodiments of the present invention, and all changes and modifications made by the scope of the patent application of the present invention should be covered by the present invention.

<p>100, 500. . . Earphone device</p><p>110, 510. . . First earphone</p><p>114. . . Interface module</p><p>116. . . Signal processing module</p><p>118. . . amplifying circuit</p><p>120. . . First speaker</p><p>122, 166, 522. . . Connection</p><p>130, 530. . . Second earphone</p><p>134. . . Second speaker</p><p>136,536. . . Reel</p><p>150. . . Transmission line</p><p>151. . . Source line</p><p>152. . . power cable</p><p>160. . . First power supply device</p><p>162. . . Second power supply device</p><p>164. . . Power switch</p><p>112, 512. . . First housing</p><p>132, 532. . . Second housing</p><p>153. . . End plug</p><p>710. . . Ontology</p><p>720. . . Hole</p><p>730. . . First depression</p><p>740. . . Second depression</p>

Fig. 1 is a functional block diagram of an embodiment of an authoring earphone device.

Fig. 2 is an external view of the earphone device shown in Fig. 1.

Fig. 3 is a flow chart showing the selection of power source for the earphone device shown in Fig. 1.

Fig. 4 is a flow chart showing the charging of the earphone device shown in Fig. 1.

Figure 5 is a functional block diagram of a second embodiment of the authoring earphone device.

Fig. 6 is an external view of the earphone device shown in Fig. 5.

Figure 7 is a perspective view showing the second embodiment of the present invention in which the cord reel is disposed on a transmission line.

Fig. 8 is a perspective view showing the second embodiment of the present invention in which a reel is used to receive a transmission line.

Fig. 9 is a perspective view showing the second embodiment of the present invention in which a transmission line is housed in a reel.