JPH11239328A - Radio communications terminal for video communication - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct video communication with a simple operation by using the radio communications terminal for video communication SOLUTION: A video camera 4 connects to an image signal input terminal 2 and an audio signal input section 3. The video camera 4 converts received video and audio data into a video signal and an audio signal and they are given to a signal input output section via the image signal input terminal 2 and the audio signal input section 3. The received video and audio signals are given to an image processing section and an audio processing section by the signal input output section respectively. The video signal and the audio signal processed by the image processing section and the audio processing section are given to a transmission reception section. The transmission reception section encodes and multiples the processed video signal and audio signal and modulates them. The modulation signal is sent via an antenna 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication terminal for video communication mainly for video communication.

[0002]

2. Description of the Related Art Notebook personal computers or portable information terminals (PDs)
An information processing apparatus such as A) transmits and receives a videophone, a fax, or an e-mail. In order to connect this information processing device to a portable wireless communication terminal such as a mobile phone or a PHS, a modem card or a digital cellular card is used. Further, when transmitting an image, a video signal input card is used to connect a video camera to the information processing apparatus.

[0003]

However, when video communication is performed using a conventional wireless communication terminal and an information processing device, it takes time to connect and communicate between the devices. In addition, operation of the wireless communication terminal often involves confirmation by voice. For this reason, it is difficult to use for a person with hearing impairment or a person who uses it in a noisy environment.

[0004] The present invention has been made in view of the above, and an object of the present invention is to provide a wireless communication terminal for video communication that can perform video communication with a simple operation.

[0005]

According to the present invention, the following means are provided in order to solve the above-mentioned problems.

According to a first aspect of the present invention, there is provided a video communication wireless communication terminal having a video signal input terminal to which an external camera can be connected and transmitting a video signal from the external camera.

With this configuration, since the video signal input terminal is provided, the video can be transmitted only by connecting the external camera to the wireless communication terminal for video communication via the video signal input terminal. Therefore, there is no need to connect a number of devices as in the case of using the information processing device. Also, a video signal input card or the like is not required for connection between devices.

According to a second aspect of the present invention, there is provided the wireless communication terminal for video communication according to the first aspect, further comprising a video signal output terminal connectable to an external display device, and receiving the received video signal from the external display device. Is adopted.

With this configuration, since the video signal output terminal is provided, the video can be displayed only by connecting the external display device via the video signal output terminal. Therefore,
There is no need to connect a number of devices as in the case of using an information processing device. Further, a video signal output card or the like is not required for connection between devices.

According to a third aspect of the present invention, there is provided a wireless communication terminal for video communication, comprising a built-in camera unit for capturing a video, and a video signal output terminal connectable to an external display device, wherein a video signal from the built-in camera unit is provided. And transmitting the received video signal to the external display device.

[0011] With this configuration, since the camera has the built-in camera, it is possible to capture and transmit the image without connecting an external camera separately. Further, since the video signal output terminal is provided, the video can be displayed only by connecting the external display device via the video signal output terminal. Therefore, there is no need to connect a number of devices as in the case of using the information processing device. Further, a video signal input card, a video signal output card, and the like are not required for connection between devices.

According to a fourth aspect of the present invention, there is provided the video communication wireless communication terminal according to any one of the first to third aspects, further comprising a keyboard terminal to which an external keyboard can be connected. The configuration to transmit the input character information is adopted.

According to this configuration, since an external keyboard can be connected, character information can be input and transmitted from the external keyboard. Therefore, communication combining video and character information is possible. The transmitted character information is displayed on, for example, a display device connected to or incorporated in the other party's video communication wireless communication terminal.

According to a fifth aspect of the present invention, there is provided the wireless communication terminal for video communication according to any one of the first to fourth aspects, wherein the wireless communication terminal has a notifying means for visually notifying the communication status. .

[0015] With this configuration, since there is provided a notifying means for visually notifying the communication status, there is a message of an incoming call or answering machine, and the communication status such as the status of the communication protocol is visually notified to persons in the vicinity. be able to. In particular, it is suitable for use by hearing-impaired persons. The notification means includes, for example, a lamp, a display, and the like.

According to a sixth aspect of the present invention, in the invention of the video communication wireless communication terminal according to any one of the first to fifth aspects, when a predetermined input key is operated, a predetermined process is automatically executed. take.

According to this configuration, the corresponding process is automatically executed only by operating a predetermined input key, so that the operation is simplified. For example, by associating a response button with a communication protocol for connecting to a communication partner, communication with the partner can be established only by pressing the response button.

A seventh aspect of the present invention is the video communication wireless communication terminal according to the sixth aspect of the present invention, in which, when a predetermined key is operated, a process of leaving a message in the other communication terminal is automatically executed.

According to this configuration, a predetermined key, for example, an answering button, is provided with a process of leaving a message of video, audio, text, or a combination thereof in the communication terminal of the other party, so that when the other party is absent, A message can be left on the other party's communication terminal simply by pressing the answer button. There may be more than one key, but one is easier to operate.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 to 6 of the present invention will be described below.
Will be described in detail. (Embodiment 1) FIG.1 is a block diagram of a wireless communication terminal according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram of the wireless communication terminal according to the first embodiment.

The signal input / output unit 1 is an input / output circuit for receiving an image signal and an audio signal from the outside and outputting the signal to the outside. The signal input / output unit 1 receives a video signal and an audio signal from the video camera 4 connected to the image signal input terminal 2 and the audio signal input / output terminal 3 using the cable 18. Further, it outputs a video signal and an audio signal to the television 7 connected to the image signal output terminal 5 and the audio signal output terminal 6 using the cable 19. These terminals 3, 4, 5, 6 may be audio and video terminals of a commercially available video camera 4 and television 5. The cables 18, 19 may also be commercially available audio and video connection cables.

The image processing section 8 performs predetermined image processing on the image signal. The image processing unit 8 includes, for example, an image compression / decompression circuit, an A / D converter, and the like.

The audio processing section 9 performs predetermined audio processing on the audio signal. The audio signal processing unit 9 includes, for example, an audio compression / expansion circuit, an A / D converter, and the like.

The transmission / reception unit 10 encodes and multiplexes the audio signal and the image signal, modulates the signal, and transmits the modulated signal via the antenna 11. On the other hand, the modulated signal received via the antenna 11 is demodulated, separated and decoded.

The display 12 is a means for displaying a video signal received from the transmission / reception unit 11. For example, LCD (Liq
uid Crystal Display).

The operation unit 13 includes keys for the user to perform various key operations, and includes, for example, a dial key 14 such as a normal numeric keypad.

The central processing unit (CPU) 15 is a control means for controlling signals from the operation unit 13 and controlling each unit.

The memory section 16 is a storage means for storing a program for the operation of the CPU 15 and for storing data such as video signals and audio signals. Memory unit 16
Is, for example, a RAM (Random Access Memory) and a ROM (R
ead Only Memory).

The bus 17 includes a signal input / output unit 1, an image processing unit 8, an audio processing unit 9, a transmission / reception unit 10, a display 12,
This is a common signal path for connecting the operation unit 13, the CPU 15, and the memory unit 16, respectively.

The operation of radio communication terminal 20 according to Embodiment 1 will be described below. At the time of transmission, first, the video camera 4 converts the captured video and audio into a video signal and an audio signal, and inputs the video and audio signals to the signal input / output unit 1 via the image signal input terminal 2 and the audio signal input unit 3. The input video signal and audio signal are transferred by the signal input / output unit 1 to the image processing unit 8 and the audio processing unit 9 via the bus 17.

The image processing section 8 performs image processing such as image compression processing on the image signal. Similarly, the audio processing unit 9 performs audio processing such as audio compression processing on the audio signal. The processed video signal and audio signal are transmitted to the transmission / reception unit 10 via the bus 17.
Passed to.

The transmission / reception unit 10 modulates the video signal and the audio signal to be processed after encoding and multiplexing. The modulated signal is transmitted via the antenna 11.

On the other hand, at the time of reception, the modulated signal received via the antenna 11 is separated and combined by the transmission / reception unit 10. The obtained video signal and audio signal are subjected to, for example, decompression processing by the image processing unit 8 and the audio processing unit 9 via the bus 17. The processed video signal and audio signal are passed to the signal input / output unit 1 via the bus 17. The signal input / output unit 1 outputs a video signal and an audio signal to a television 7 connected via a video signal output terminal 5 and an audio signal output terminal 6. The television 7 converts the video signal and the audio signal into video and audio, respectively, and displays and reproduces the video and audio signals. In addition,
The video may be displayed on the built-in display 12.

Radio communication terminal 20 according to the first embodiment
According to the video signal input terminal 2 and the audio signal input terminal 3
Therefore, the video and audio captured by the video camera 4 can be transmitted only by connecting the external video camera 4 to the video signal input terminal 2 and the audio signal input terminal 3 with the cable 18.

Similarly, since the video signal output terminal 5 and the audio signal output terminal 6 are provided, it is only necessary to connect the external television 7 to the video signal output terminal 5 and the audio signal output terminal 6 using the cable 19. The received video and audio can be displayed and reproduced on the television 7. Therefore, there is no need to connect several devices as in the case of using a notebook computer or the like. Further, a video signal input card or the like is not required for connection between devices.

As described above, the wireless communication terminal 20 according to the first embodiment can use commercially available external devices such as the video camera 4 and the television 7 which are commercially available. In addition, these external devices and the wireless communication terminal 20 are connected to a commercially available cable 1.
A video / audio communication system can be constructed simply by making connections at 8 and 19. Embodiment 2 FIG. 3 is a schematic diagram of a radio communication terminal according to Embodiment 2 of the present invention. The wireless communication terminal 30 according to the second embodiment includes a built-in camera unit 31 instead of the video signal input terminal 3 and the audio signal input terminal 4.
The built-in camera unit 31 is a movable type that can freely change the elevation angle of the lens unit 32. Except for this point, the configuration is the same as that of the wireless communication terminal 20 according to the first embodiment.

Radio communication terminal 30 according to the second embodiment
Has a built-in camera, so it can capture and transmit video independently. Also, the elevation angle of the camera lens can be adjusted. As a result, the wireless communication terminal 30 has excellent portability and is easy to use.

Further, as in the first embodiment, since the video signal output terminal 5 and the audio signal output terminal 6 are provided, the received video and audio can be transmitted only by connecting the external television 7 with the cable 19. 7 can be displayed and reproduced. Therefore, there is no need to connect several devices as in the case of using a notebook computer or the like. Further, a video signal input card or the like is not required for connection between devices. (Embodiment 3) FIG.4 is a schematic diagram of a radio communication terminal according to Embodiment 3 of the present invention. The wireless communication terminal 40 according to the third embodiment includes a keyboard terminal 42 for connecting an external keyboard 41. Except for this point,
It has the same configuration as the wireless communication terminal 30 according to the second embodiment.

As the keyboard terminal 42, for example, a terminal for connecting a keyboard for a commercially available personal computer can be used. The keyboard terminal 42 is connected to the operation unit 13 shown in FIG.

The external keyboard 4 is connected to the keyboard terminal 42.
When the user 1 is connected and character information is input, as shown in FIG. On the other hand, character information input by the other party's wireless communication terminal 40 is displayed in the second window 54 showing the other party's message. The character information displayed in the first window 53 of the wireless communication terminal 40 of ours is transmitted and received by the transmitting / receiving unit 10 shown in FIG.
Is converted into a modulated signal, and transmitted via the antenna 11. Then, it is received by the other party's wireless communication terminal 40 and displayed in the second window 54.

As described above, in the wireless communication terminal 40 according to the third embodiment, since the external keyboard 41 can be connected via the keyboard terminal 42, the external keyboard 41
More text information can be input and transmitted. Therefore, conversational conversation using video and subtitles becomes possible. The document creation function also supports Internet, PC communication and fax communication. (Embodiment 4) FIG. 6 is a schematic diagram of a radio communication terminal according to Embodiment 4 of the present invention. The wireless communication terminal 60 according to the fourth embodiment has the same configuration as the wireless communication terminal 20 according to the first embodiment, except that the wireless communication terminal 60 includes a lamp 61 and a sub-display 62.

The lamp 61 emits light at the time of an incoming call to notify a nearby person of the incoming call. If you have an answering machine,
You can also be notified that there is a message in the answering machine.

On the other hand, the sub-display 62 displays a communication status message. For example, the type of incoming data (eg, video, text, etc.) is displayed as a message.

Radio communication apparatus 60 according to Embodiment 4
Is provided with a notifying means for visually notifying the communication status, so that the communication status can be notified visually to those around. In particular, it is suitable for use by hearing-impaired persons. (Embodiment 5) FIG. 7 is a schematic diagram of a wireless communication terminal according to Embodiment 5 of the present invention. The wireless communication terminal 70 according to the fourth embodiment has the same configuration as that of the wireless communication terminal 30 according to the second embodiment, except that a response button 71 is provided.

The response button 71 is operated by the operation unit 13 shown in FIG.
It is connected to the. When the response button 71 is turned on, C
The PU 15 controls the transmission / reception unit 10 and the like in accordance with the program stored in the memory unit 16 to automatically execute a communication protocol for establishing a call with the partner wireless communication terminal. Therefore, the user can make a call with the other party only by pressing the answer button 71 during the call. For example, the video from the other party is displayed on the television 7 and the sound is reproduced.

As described above, according to the wireless communication terminal 70 according to the fifth embodiment, only by pressing the response button 71,
Video communication can be performed extremely easily. (Embodiment 6) FIG. 8 is a schematic diagram of a radio communication terminal according to Embodiment 6 of the present invention. The wireless communication terminal 80 according to the fourth embodiment has the same configuration as the wireless communication terminal 30 according to the second embodiment, except that the answering button 81 is provided.

The answering button 81 is connected to the operation unit 13 shown in FIG.
It is connected to the. When the Answer On button 81 is turned on, C
The PU 15 controls the transmitting and receiving unit 10 and the like according to the program stored in the memory unit 16, transmits a message stored in the memory unit 16 in advance to the wireless communication terminal of the other party, and automatically executes an operation of storing the message. The message is video, audio, text, or a combination thereof.

Conventionally, when the other party is absent during a call, the user has recorded a message by voice at the other party's wireless communication terminal. On the other hand, according to the sixth embodiment, a message prepared in advance can be automatically transmitted to the other party and stored in the answering machine simply by pressing the answering button 81.

The answering button 81 is used for the wireless communication terminal 8.
If 0 has an answering machine function, the operation of reproducing the message of the other party of the answering machine can be automatically executed. In this case, when the message of the other party has come, if the answering button 81 is pressed, the message of the other party can be reproduced.

In the sixth embodiment, the absence button 8
Although 1 is specially prepared, a combination of a plurality of keys of the dial keys 14 may be used. However, a single key is easier to operate. In addition, the absence button 81,
A button for message playback of an answering machine may be separated.

Although the sixth embodiment has been described by taking the wireless communication terminal 80 for video communication as an example, the present invention can be applied to a wide range of general communication terminals such as a normal telephone, a portable telephone, a PHS, a video telephone, and a facsimile. it can.

[0052]

As described above, according to the present invention,
The video communication wireless communication terminal can be easily connected to an external device and can perform video communication with a simple operation.
As a result, it is possible to provide a video communication system that is easy to carry and easy to use for the hearing impaired.

[Brief description of the drawings]

FIG. 1 is a block diagram of a wireless communication terminal according to Embodiment 1 of the present invention.

FIG. 2 is a schematic diagram of a wireless communication terminal according to the first embodiment.

FIG. 3 is a schematic diagram of a wireless communication terminal according to Embodiment 2 of the present invention.

FIG. 4 is a schematic diagram of a wireless communication terminal according to Embodiment 3 of the present invention.

FIG. 5 is a plan view showing a display of the wireless communication terminal according to the third embodiment.

FIG. 6 is a schematic diagram of a wireless communication terminal according to Embodiment 4 of the present invention.

FIG. 7 is a schematic diagram of a wireless communication terminal according to Embodiment 5 of the present invention.

FIG. 8 is a schematic diagram of a wireless communication terminal according to Embodiment 6 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Signal input / output part 2 Video signal input terminal 3 Audio signal output terminal 4 Video camera 5 Video signal output terminal 6 Audio signal output terminal 7 Television 31 Built-in camera part 42 Keyboard terminal 71 Response button 81 Answering button

Claims (7)

[Claims] 1. A wireless communication terminal for video communication, comprising a video signal input terminal connectable to an external camera, and transmitting a video signal from the external camera. 2. The wireless communication terminal for video communication according to claim 1, further comprising a video signal output terminal connectable to an external display device, and displaying the received video signal on said external display device. 3. A built-in camera unit for capturing an image, and a video signal output terminal connectable to an external display device, wherein the external display device transmits the video signal from the built-in camera unit and receives the video signal from the external display device. A wireless communication terminal for video communication, characterized by displaying the information. 4. The video communication radio according to claim 1, further comprising a keyboard terminal to which an external keyboard can be connected, and transmitting character information input by the keyboard. Communication terminal. 5. The video communication wireless communication terminal according to claim 1, further comprising a notifying means for visually notifying a communication status. 6. A method according to claim 1, wherein a predetermined process is automatically executed when a predetermined input key is operated.
A wireless communication terminal for video communication according to any one of the above. 7. The wireless communication terminal for video communication according to claim 6, wherein, when a predetermined key is operated, a process of leaving a message in the communication terminal of the other party is automatically executed.