Mobile telephone comprising a video camera and a video display

The invention relates to a radio telephone.

Such a cellular phone system is for example in the magazine "Mobile" 1 (1988) Issue 1, page 14. The device has a cuboid housing of handset size, in which a transmitting and receiving device, Dialing and function keys, a display panel, electro-acoustic transducer, a power supply in the form of rechargeable batteries and a highly integrated, electronic circuit are housed. At the Top of the housing is an aerial screw, is also there a slot for inserting an authorization card in a built-in Card reader available. The dialpad form a full alphanumeric Keyboard, the electronics includes numerous presets for phones and name. For charging indicator and various other Features the device offers menu functions. parts for portable and mobile use in motor vehicles, such as Vehicle mount, carrying case, desktop charger, handsfree, allows the use of all the advantages of a mobile network.

Further, wireless phones known for short range called cordless phones, the one connected to the telecommunication network have fixed station and one cordless handset, the latter all Operation buttons and an accumulator contains, such as "sine-1" or "sine 2 "of the German Federal Post (FTZ Brochures L 16-4, Best. No. 210A or 210B). The base station is equipped with a charging device at hook handset is charging the battery, the full charged a allows several hours of independence from the base station. Of the Reception between the base station and handset is provided through numerous Channels in the 900 MHz range.

The invention has for its object, the scope and to further improve convenience of a cordless telephone. Solved is this Task by the features specified in claim 1., Further developments are given in the dependent claims. By Extension of the cordless telephone on the video area can if necessary the oral communication to be added pictorial whereby the be transmission of information substantially improves and facilitates can.

The invention will be described based on an embodiment, the in the accompanying drawing is shown. Their show 1 and 2 a mobile radio telephone with video device in the form of a handset in Front view and in a schematic longitudinal section.

The mobile Funkvideofon, as in conventional radio telephones, as a handheld device educated. Its housing 1 therefore has a well-to-use form, that of a telephone handset is similar. As shown in FIG. 2 is, the two ends of the housing, in which behind corresponding sound passages 9 and 10, the acoustic transducer 2 and 3 are accommodated, be inclined inwardly to a good understanding to ensure the immediate speech. The housing can, however, also stretched shape. The device is equipped with a handsfree equipped. As usual, the following parts are arranged in the case 1: Microphone 2 Speaker 3, therebetween, above the microphone 2 a Keypad 4 and, as necessary, additional function keys (not shown) and the electronic circuit 5 of the apparatus, the dot-dash Lines indicated. The keys can also on the other, the Sound passages 9 and 10 facing away from side (outside) of the housing 1 be arranged.

In addition, a flat LCD display above the keypad 4 as Video reproduction device 6, attached, at least in this part the width of the housing 1 is determined. Again, it is a small Camera 7 with wide angle lens 8 as a video capture device built-in. This provides a Funkvideofon for image and Tonkommunikation available, with, as with mobile phones, maximum Independence and mobility is given, coupled now with visual comfort.

For communication in the ISDN is ever a B-channel for audio and uses the video transmission. Your mobile phone network C takes the Transmission over two channels with a transmission rate of 32 Kbit / s. Alternatively, for use in the Mobile Network Audio with 8 kbit / s and video with 24 Kbit / s are transmitted to higher bitrates To be available.