JPH05122400A - Picture communication telephone set - Google Patents

Abstract

PURPOSE:To recognize a new incoming call without diverting a visual line from a picture display section. CONSTITUTION:When a new incoming call during communication is detected by a line interface section 13, a system control section 16 controls a picture memory section 5 and a character generator section 15 to add a symbol or the like representing the arrival of the call to a picture from a picture memory section 5 and displays the result onto a display section 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image communication telephone for encoding and transmitting image and audio information and receiving and decoding the encoded image and audio information.

[0002]

2. Description of the Related Art FIG. 3 is a schematic block diagram showing a general circuit configuration of a conventional image communication telephone.

In FIG. 3, reference numeral 1 is a camera input section,
It is for inputting self-portraits, drawings, and the like. Reference numeral 2 denotes a display unit for displaying an input image from the camera input unit 1, a received image from a partner, an operation screen, and the like. A video input interface unit 3 performs switching processing of the camera input unit according to an instruction from the system control unit 12. A video output interface unit 4 performs switching processing of the display unit 2 and the like. An image memory unit 5 is for performing picture-in-picture processing. 6
Is a video encoding / decoding unit, which has a video encoding unit 6a and a video decoding unit 6b, and performs a transmission image signal encoding process and a reception image signal decoding process.
7 is a handset unit. Reference numeral 8 denotes a voice input / output interface unit which performs echo cancellation processing and generation processing of tones such as dial tone, ringing tone, busy tone, and ringing tone according to an instruction from the system control unit 12.
Reference numeral 9 denotes a voice encoding / decoding unit which has a voice encoding unit 9a and a voice decoding unit 9b, and performs an encoding process of a transmission voice signal and a decoding process of a reception voice signal according to an instruction from the system control unit 12. It is something to do. An operation unit 10 has a keyboard, a touch panel, etc. used for inputting control information for performing overall control of the apparatus. Reference numeral 11 denotes a demultiplexing unit, which is an audio signal from the audio encoding / decoding unit 9, an image signal from the video encoding / decoding unit 6, and a system control unit 12.
The control signal from is multiplexed in transmission frame units, and the reception frame is separated into each medium of constituent units and notified to each unit. 12 is a system control unit, CP
It is provided with a U, a ROM, a RAM, an auxiliary storage device, and the like, and monitors the state of each part, controls the entire device, operates according to the state, creates a display screen, executes an application program, and the like. Reference numeral 13 is a line interface unit for controlling the line in accordance with the ISDN user network interface, and 14 is a communication line.

Next, the operation of the above configuration will be described.

An input image from the camera input unit 1 is input to the video encoding unit 6a via the video input interface unit 3 and the image memory unit 5. On the other hand, the input voice from the handset unit 7 is input to the voice encoding unit 9a via the voice input / output interface unit 8.

The input image coded by the video coding unit 6a and the input voice coded by the audio coding unit 9a are multiplexed by the demultiplexing and multiplexing unit 11, and passed through the line interface unit 13 to the communication line. 14 is transmitted.

On the other hand, the received signal from the communication line 14 is separated into an image signal and an audio signal by the demultiplexing unit 11 via the line interface unit 13, and the video decoding unit 6 respectively.
b, input to the voice decoding unit 9b. Video decoding unit 6
The received image decoded by b is displayed on the display unit 2 via the image memory unit 5 and the video output interface unit 4, and the received signal decoded by the audio decoding unit 9b is
Handset unit 7 via voice input / output interface unit 8
Is output to.

[0008] As an additional service of the INS net service, when an incoming call is received from another party during communication, the communicating party is put on hold and switched to a new incoming party (or three parties) to perform communication. There is "flexphone (call waiting)" (similar to "call waiting" in the existing telephone network).

In the conventional image communication telephone, when an incoming call signal by the flexphone service is detected, a new incoming call during communication is made by the sound from the handset or the LED display or the display on the character display LCD. It is supposed to inform.

[0010]

However, in the above-mentioned conventional example, since the line of sight of the user during communication is generally concentrated on the image display section, it is easy to overlook the incoming call display.

[0012] Further, there is a case where announcing a new incoming call by sound is annoying.

Further, there is a limit to the form of display by another character display section.

An object of the present invention is to solve the above problems and to provide an image communication telephone capable of recognizing a new incoming call without diverting the line of sight from the image display means.

[0014]

In order to achieve such an object, the present invention provides an image communication telephone having image display means for displaying a received image, an input image, etc. An incoming call detecting means for detecting a call and a display control means for displaying the incoming call on the image display means when a new incoming call is detected by the incoming call detecting means are provided.

[0015]

According to the present invention, a new incoming call during communication is detected by the incoming call detection means, and when the new incoming call is detected by the incoming call detection means, the display control means calls the image display means. indicate.

[0016]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. In FIG. 1, the same parts as those in FIG. 3 are designated by the same reference numerals. A character generator unit 15 generates a predetermined sign, character, or illustration indicating an incoming call. 16
1 is a system control unit, and FIG. 1 controls each unit shown in FIG. 1 and, when an incoming call is detected by the line interface unit 13, a symbol and character indicating an incoming call from the character generator unit 15 in an image from the image memory unit 5. , Or an illustration is added, or the image from the image memory section 5 is replaced with a symbol, a character, or an illustration indicating an incoming call from the character generator section 15 and output to the video output interface section 4.

Next, the operation will be described.

When the line interface unit 13 detects an incoming call during communication, the incoming call detection signal is sent to the demultiplexing unit 1.
It is input to the system control unit 16 via 0, and the system control unit 16 inputs the incoming call display instruction signal to the character generator unit 15. Character generator 15
An image signal obtained by performing a picture-in-picture process between the self-portrait and the received image by the image memory unit 5 is input to the. In response to an incoming call display instruction signal from the system control unit 16, a symbol or character indicating a preset incoming call, an illustration, or the like is added to the image from the image memory unit 5 or switched to the display unit 2. A symbol or character indicating a new incoming call, or an illustration is displayed together with the input image and the received image. An example of a display screen on the display unit 2 is shown in FIG. In this example, a received image (partner image) is displayed on the main screen, an input image (self image) is displayed on the lower right child screen, and "incoming call" is displayed on the lower left to inform that there is an incoming call.

In this embodiment, since this is done, an incoming call is displayed on the image display section for a new incoming call by the flexphone service during communication, so that a display with excellent visibility is possible. Become.

[0021]

As described above, according to the present invention,
When a new incoming call is being communicated, a symbol or character indicating the incoming call or an illustration is displayed on the image display section, so it is possible to recognize without diverting the line of sight from the image display section and high visibility. Is effective.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a display example when a new incoming call is detected during communication.

FIG. 3 is a block diagram showing a conventional image communication telephone.

[Explanation of symbols]

 1 camera input unit 2 display unit 3 video input interface unit 4 video output interface unit 5 image memory unit 6 video encoding / decoding unit 7 handset 8 audio input / output interface unit 9 audio encoding / decoding unit 10 demultiplexing unit 11 Operation part 13 Line interface part 15 Character generator part 16 System control part

Claims (1)

[Claims] 1. An image communication telephone having image display means for displaying a received image, an input image and the like, and an incoming call detecting means for detecting a new incoming call during communication, and a new one by the incoming call detecting means. An image communication telephone, comprising: display control means for displaying the incoming call on the image display means when such an incoming call is detected.