JPH0260365A - digital phone - Google Patents

Abstract

PURPOSE:To transmit picture data independently of speech during this speech by providing an electronic exchange with a transmission control means which controls transmission divisionally with two channels of a telephone set control information channel and a picture information channel. CONSTITUTION:When telephone sets are connected to each other by the dial input on a keyboard 11. A subscriber speechs with another subscriber of the connected destination digital telephone set through a speaker 8 and a microphone 9 of a digital telephone set 5 and a highway for voice transmission and reception. At this time, data inputted from an image scanner 14 as picture transfer data is inputted to a CPU 10 through an image input circuit 13 and is sent to an electronic exchange 1 through another highway. This picture transfer data is inputted to a CPU 3 through a digital communication circuit 6 and is sent to the destination digital telephone set. The destination digital telephone set which receives picture information displays its contents on a display device having the same constitution as a display device 12.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a digital telephone capable of transmitting and exchanging digital information by voice information and keyboard input.

BACKGROUND OF THE INVENTION FIG. 3 is a block diagram showing a schematic configuration of a conventional digital telephone and an electronic exchange connected to the telephone.

The electronic exchange 1 includes other telephone circuits (not shown), a call connection circuit 2 that connects this line, an exchange CPU 3 that executes various controls within the exchange, and a digital telephone 5 that is connected to the CPU 3 and the call connection circuit 2. Each of the internal exchange digital communication circuits 4 performs this information exchange.

On the other hand, the digital telephone 5 has an in-phone digital communication circuit 6 connected to the in-exchange digital communication circuit 4, and is connected to this digital communication circuit 6 via a network for transmitting voice data at 64 Kbps, While converting the digital signal from the communication circuit 4 into audio information,
A codec 7 that converts audio information from a microphone 9 into a digital signal, a speaker 8 that converts the audio signal output from the codec 7 from electrical to acoustic, a microphone 9 that converts audio from mechanical to electrical, and a digital communication circuit 6 in the telephone. 1
63 is connected via a highway for transmitting Kbps image data, processes input data from the keyboard 11 and transmits it to the digital communication circuit 6, and also transmits display information to the display 12.
CPU101 for the telephone that controls the display on this CP
A keyboard 11 and a display 12 are connected to Ul0 and serve as input units used for inputting various data, commands, etc.
It is composed of

FIG. 4 is a bit configuration diagram showing the transmission format in the system of FIG. 3. As shown in FIG. 4, one frame consists of 12 bits, bits 0 to 7 are audio data bits, bits 8 and 9 are control data bits (digital telephone control bit and response bit from the digital telephone), and pictograph 10 Bit 11 is used as a control data synchronization bit (a bit that indicates whether control data is valid or invalid), and bit 11 is used as a frame synchronization pattern bit (or a polarity bit is a bit that synchronizes to receive a frame of data block). There is.

Next, the operation of the configuration shown in FIG. 3 will be explained.

A telephone number is dialed in using the keyboard 11.

This key information is input to the telephone internal digital communication circuit 6 via the telephone CPU 10, and sent to the digital communication circuit 4 of the electronic exchange 1 via this digital communication circuit 6. The digital communication circuit 4 transmits key information to the exchange CPU via a highway for transmitting control data at 15 Kbps.
3 is input.

The CPU 3 connects the digital telephone 5 to other telephone circuits via the call connection circuit 2. When the line is connected, the codec 7 of the digital telephone 5 and the digital communication circuit 6 are connected, and the speaker 8, which is a handset, and the microphone 9, which is a transmitter, function, and the other party can talk to the other party.

Problems to be Solved by the Invention However, in the conventional configuration as described above, there is a problem in that only voice information can be exchanged, that is, a phone call can be made, and images cannot be transferred during a phone call.

The present invention solves the conventional problems as described above.
The object of the present invention is to provide a digital telephone that enables image transfer during a call.

5. Means for Solving the Hage Problem In order to solve the above problem, the present invention provides a digital communication circuit for connecting an audio circuit and a digital circuit to an electronic exchange, an input section equipped with keys for dial input, a display unit that displays various information; an image input circuit that captures image information from an image input means;
a CPU that connects each of the input section and the display section;
The apparatus is equipped with transmission control means for dividing data transmission between the CPU and the digital communication circuit into two channels, a telephone control information channel and an image information channel.

action The present invention has the following effects due to the above configuration.

That is, since one bit of two bits of control data in digital communication is used to transmit data for image transfer, it is possible to transfer input image data using the image input means during a telephone call.

Embodiment 6 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a digital telephone and an electronic exchange connected thereto in one embodiment of the present invention, and FIG. 2 is a bit configuration diagram showing a transmission formant of the present invention.

In this embodiment, the same parts as in the conventional example shown in FIG. 3 are given the same reference numerals, and the explanation thereof will be omitted, and the different configuration will be explained.

In addition to the above-mentioned conventional example, the present embodiment is characterized by the provision of an image input circuit 13 that takes in image information from an image input means such as an image scanner 14, and two channels of 15 Kbps for control data communication in units of 8 Kbps. A transmission control means is provided which uses one channel for transmitting and receiving telephone control information such as key data and the other channel for image data communication. Image input circuit 13 is connected to CPU10.

The transmission format in this embodiment is that one frame consists of 12 bits as in the conventional example shown in FIG.
Bin) (bit) Q to 7 are audio data 7.\-no (64 Kbps PCM data bits), bit 10 is a control data synchronization bit, and bit 11 is a frame synchronization pattern bit, which has the same configuration as the conventional one. However, bits 8 and 9 are used as control data bits and image transfer bits, and the focus of either one is used as the control data bit, and the other bit is used as the image transfer data bit. The control data bit is a digital telephone control bit and a response bit from the digital telephone, and the image transfer data bit is a transmission/reception bit of image transfer data.

Next, among the operations of the embodiment with the above configuration, image transfer during a call according to the present invention will be described.

First, dial input is performed using the keyboard 11, and based on this, the telephones are connected to each other.

Then, a call can be made to the other party's digital telephone connected by the key information via the handset using the speaker 8 and microphone 9 of the digital telephone 5 through a 54 Kbps voice transmission/reception highway. At this time, as the image transfer data, the image scanner 1
The data input from 4 is input to the CPU 10 via the image input circuit 13 and is 8 Kbp for transmitting and receiving key information.
The image transfer data can be sent to the electronic exchange 1 through an 8 Kbps highway different from the 8 Kbps highway. This image transfer data is input to the CPU 3 via the digital communication circuit 6 in the electronic exchange 1, and further sent to the other party's digital telephone. The other party's digital telephone that has received the image information displays the contents on the display 12 which has the same configuration as the display 12.

Effects of the Invention As described above, according to the present invention, there is provided a digital communication circuit for connecting an audio circuit and a digital circuit to an electronic exchange, an input section equipped with keys for dial input, and a display for displaying various information. an image input circuit that takes in image information from an image input means;
a CPU that connects each of the input section and the display section;
Since data transmission between the CPU and the digital communication circuit is divided into two channels, a telephone control information channel and an image information channel, a transmission control means 9 is provided. In addition to being able to send image data regardless of the call,
Image information can be displayed on the display of the other party's telephone.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of a digital telephone and an electronic exchange connected thereto in one embodiment of the present invention, FIG. 2 is a bit configuration diagram showing the transmission format of the present invention, and FIG. 3 is a conventional FIG. 4 is a block diagram showing a schematic configuration of a digital telephone and an electronic exchange connected thereto. FIG. 4 is a bit configuration diagram showing a conventional transmission format. 1...Electronic switchboard, 5...Digital telephone, 6...
・Internal telephone digital communication circuit, 7... Codec, 8
...Speaker, 9...Microphone, 10...CP
U, 11... Keyboard, 12... Display, 13.
...Image input circuit, 14...Image scanner.

Claims (1)

[Claims] A digital communication circuit that connects the audio circuit and the digital circuit to the electronic exchange, an input section with keys for dial input, a display section that displays various information, and an image input device that captures image information using an image input means. A circuit, a CPU that connects each of the image input circuit, the input section, and the display section, and mutual data transmission between the CPU and the digital communication circuit are divided into two channels: a telephone control information channel and an image information channel. 1. A digital telephone comprising: transmission control means for controlling transmission.