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Communication terminal apparatus

a technology of communication terminal and videophone, which is applied in the field of communication terminal equipment, can solve the problems of poor portability and storage of radio communication terminals with videophone functions, and difficulty in use, and achieve the effect of not having portability and storag

Inactive Publication Date: 2001-11-15
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] With this communication terminal system, the housing that is capable of voice communications alone is small by limiting its functions, and can be stored in, e.g., a pocket. Also, upon reception of an incoming call, this housing allows the user to immediately go off-hook. Even upon reception of a videophone communication request, the user goes off-hook using the housing that is capable of voice communications alone, and can switch the communication mode to a video / voice communication mode using the housing that is capable of video / voice communications. Hence, even a communication terminal having a videophone function can comprise a video input / output function without impairing its portability and storability.
[0007] According to this communication terminal apparatus, the operation direction detection means can detect whether the screen scroll direction input means is operated from, e.g., right or left direction, and the display control means can scroll the screen in correspondence with the detected operation direction. For this reason, even when the user operates the terminal apparatus while holding it with a hand, very easy operation is assured.
[0009] According to this video communication system, the terminal holding direction detection means detects the holding state of the terminal, and the detected holding state is exchanged between terminals via the communication means. Based on a comparison result of the exchanged holding state information by the comparison means, if the directions of the two terminals do not agree with each other, the processing means processes the displayed image to match the video display directions. Hence, even when the terminal holding directions of the users do not match at the transmitting and receiving sides, images displayed on the two terminals can be prevented from horizontally or vertically inverted.

Problems solved by technology

When a so-called videophone function or the like is to be equipped in a communication terminal apparatus such as a PHS (Personal Handyphone System), portable terminal (cordless telephone), or the like that uses radio waves, a camera and display device are required, and its housing inevitably becomes larger than a terminal with a telephone function alone.
For this reason, a radio communication terminal with a videophone function has poor portability and storability, and is not easy to use.

Method used

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Experimental program
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first embodiment

[0035] First Embodiment

[0036] FIG. 1 is a block diagram showing the arrangement of principal part of a communication terminal apparatus according to the first embodiment of the present invention.

[0037] In FIG. 1, reference numeral 1 denotes a terminal main body, which has a main controller 11, video decoder 12, video LCD control circuit unit 13, video LCD 14, text LCD control circuit unit 15, text LCD 16, multiplexer / demultiplexer 17, PHS line interface unit (PHS line I / F unit) 18, antenna 19, multiplexer / demultiplexer 20, handset line interface unit (handset line I / F unit) 21, antenna 22, voice codec 23, earphone / microphone terminal 24, camera interface unit (camera I / F unit) 25, camera terminal 26, video encoder 27, camera direction sensor unit 28, operation input control circuit unit 29, touch panel 30, scroll dial 31, first operation button 32, second operation button 33, power supply button 34, terminal direction sensor unit 35, and power supply unit 36. Of these units, the mai...

second embodiment

[0140] Second Embodiment

[0141] The second embodiment relates to a communication terminal system constructed by combining a video / voice communication terminal and voice communication terminal.

[0142] A communication terminal system of this embodiment is constructed by combining a video / voice communication terminal (corresponding to the terminal main body 1 of the first embodiment) and a voice communication terminal (corresponding to the handset 2 of the first embodiment), and further has the following features.

[0143] (1) Communication Type Information:

[0144] Communication type information indicating one of a voice communication, a multimedia communication complying with ITU-T recommendation H.324 or its modification (to be referred to as an "H.324 equivalent multimedia communication" hereinafter), and data communication is appended to a call control message (call setup, response, response acknowledgement) upon connecting a channel in a non-limited digital communication mode.

[0145] (2)...

third embodiment

[0192] Third Embodiment

[0193] The third embodiment relates to a communication terminal apparatus which attains matching of video display directions. The hardware arrangement of this embodiment is the same as that of the first embodiment described above, and a detailed description thereof will be omitted.

[0194] In a portable communication terminal apparatus, the terminal holding direction by the user is uncertain at both the video transmitter and receiver sides. For this reason, when the holding directions of the transmitter / receiver sides do not agree with each other, images displayed on their terminals may be horizontally or vertically inverted. For this reason, a conventional portable communication terminal apparatus requires the terminal holding directions of the transmitter and receiver sides agree with each other.

[0195] Hence, the communication terminal apparatus of this embodiment comprises means for detecting the holding state of the terminal, exchanging each others' detected...

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PUM

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Abstract

A communication terminal apparatus is separated into a housing that is capable of video / voice communications, and a housing that is capable of only voice communications. Since functions of the housing that is capable of only the voice communications are limited, the housing becomes small, can be stored in a pocket or the like, and can immediately go off-hook upon reception of an incoming call. Upon reception of a videophone communication request, the user goes off-hook using the housing that is capable of only the voice communications to immediately make voice communications with the partner terminal, and can switch the communication mode to the video / voice communications using the housing that is capable of the video / voice communications, as needed. Hence, even a communication terminal having a videophone function can comprise a video input / output function without impairing its portability and storability.

Description

[0001] The present invention relates to a communication terminal apparatus combined with a handset with high portability.[0002] When a so-called videophone function or the like is to be equipped in a communication terminal apparatus such as a PHS (Personal Handyphone System), portable terminal (cordless telephone), or the like that uses radio waves, a camera and display device are required, and its housing inevitably becomes larger than a terminal with a telephone function alone. For this reason, a radio communication terminal with a videophone function has poor portability and storability, and is not easy to use.DISCLOSURE OF INVENTION[0003] The present invention has been made in consideration of the above situation, and has as its object to provide a communication terminal apparatus whose portability and storability do not deteriorate even when it has a videophone function or the like.[0004] According to the present invention, a communication terminal system in which one communica...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F1/16H04M1/02H04M1/72505H04N7/14
CPCG06F1/1626G06F1/1632G06F1/1647G06F1/1686G06F1/169G06F1/1698H04M1/0202H04M1/72505H04N7/142H04N2007/145
Inventor IRUBE, AKIRAMINAMI, SHIGENOBUYAMAGISHI, OSAMU
Owner KK TOSHIBA
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