JP2911914B2 - Transmission method for one-way information communication to specified destination - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] Conventionally, in addition to a communication service using an ordinary telephone using an existing telephone line, a center side is used in a vacant time (when the telephone is not used) similarly to a cable broadcast. (Transmission side) provides a one-way voice information transmission service. This service is a simultaneous information transmission system for n users (reception side) for one center station, and the highest priority is given to the use of telephone calls on telephone lines. Originally, telephone lines are bidirectional, but services utilizing this idle time are limited to one-way communication due to constraints other than technical problems.

FIG. 6 shows a configuration diagram of the communication service using idle time. The figure shows a case in which the communication service during idle time is being used. The sound from the microphone on the center side is the contact
1, is output to the speaker of the user 1 via the terminal controller contact 13-1 of the user 1. Similarly, the contact 12-n of the exchange equipment and the terminal controller contact 13 of the user n
The voice is output to the speaker on the user side n via -n. In this way, the voice information from the center side is simultaneously output to all the users. When there is an incoming call from TELx to the user side 1, the switching equipment, the terminal controller 3 of the user side 1
, Each detects an incoming call, the contacts 12-1 and 13-1 operate (in the direction indicated by the broken line), and a call can be made between TELx and TEL1.
In this case, since the voice information on the center side is not interrupted, the voice information service can be received by anyone other than the user 1. Similarly, when the user 1 is receiving the voice information from the center side, if the TEL1 is off-hook (takes off the handset), the terminal controller 3 and the exchange equipment respectively detect this off-hook and contact the contact 12-1. , 13-1 (in the direction indicated by the dashed line) to interrupt the voice information from the center side, making it possible to use it for general telephone calls. Shown in the figure
Reference numeral 11 denotes a two-way communication path, and 10 denotes a one-way communication path.

The present invention relates to a system for transmitting non-voice information such as facsimile, data, etc. to a plurality of terminals in a one-way broadcast over a one-way communication path as shown in FIG. It relates to a method of transmitting system information.

[Conventional technology]

2. Description of the Related Art Conventionally, as an information transmission system of a one-way information transmission communication system, for example, audio information such as music and guide broadcasting is performed as in the above-mentioned idle time communication service. In addition, when transmitting one-way audio information to a specific terminal or a specific group, the switching device connects the transmitting side to the specific terminal or the specific group. However, one-way information transmission of facsimile image information (document) or non-voice information such as data from a computer has not been performed.

[Problems to be solved by the invention]

When a specific terminal or a specific group to be transmitted is set by a conventional switching device, there is a problem that as the number of terminals increases, system construction is not easy and the switching device becomes large-scale.

The present invention adds a specific code information to non-voice information on the transmission side, and determines whether to output the non-voice information by determining the specific code on the terminal side. Alternatively, it is another object of the present invention to output non-voice information only to a specific group.

[Means for Solving the Invention]

A unidirectional information communication system comprising a center for transmitting non-voice information and a plurality of terminals for receiving the non-voice information, wherein the center adds a specific code to the non-voice information to the plurality of terminals. Means for simultaneously transmitting the non-voice information to a specific terminal or a specific group by providing means for judging the specific code and outputting only the specific non-voice information. It is made possible.

[Action]

The present invention is a one-way information communication system including a center for transmitting non-voice information and a plurality of terminals for receiving the non-voice information, wherein the center adds information of a specific code to the non-voice information. , To all terminals at once.

The terminal side, to be output in advance which non-voice-based information, self-specific code has been set, to determine a specific code transmitted from the center side, and outputs if they match. No output if they do not match.

This eliminates the need for a switching device conventionally required on the center side, and enables transmission of non-voice information to a specific destination.

〔Example〕

Hereinafter, the present invention will be specifically described with reference to the embodiments shown in the drawings.

FIG. 1 is a configuration diagram showing a transmission system of facsimile image information in a free time use communication service. The image information of the document set in the center facsimile 1 is stored in a memory area inside the center controller 2. The flow of information at that time is shown in the center controller configuration diagram of FIG. Center facsimile 1 → Non-voice information reception / transmission switching contact 21 → Modem M / D → Memory area M
EM. When this image information is stored in the MEM, the microprocessor MPU determines the information of the specific code switch already specified from the operation panel via the switch and the display unit controller KDU (FIG. 4 -41), and And temporarily stored in the MEM in addition to the image information. Activate the non-voice information reception / transmission switching contact 21 and
When transmitting the stored image information to the user's home, the MPU reads the specific code and the image information from the MEM. MPU is
Activate the push button signal oscillator PBOSC and send the corresponding push button signal to the user's home (Fig. 4-4)
1) (If the specific code is “A”, a push button signal “A” is transmitted). Next, the image information is transmitted to the user's house via the M / D (FIG. 4-42). FIG. 5 shows an example of a case where image information is transmitted by designating various specific codes. The image information 01 specifies a specific code such as "A", the image information 02 specifies a specific code "B", and the image information 03 specifies a specific code such as a specific code "A".

Next, the receiving side will be described. FIG. 3 shows a configuration diagram of the terminal controller 3. The microprocessor MPU reads the set value of the dip switch DS as the self-specifying code (assuming that "A" is set as the self-specifying code). The MPU reads via the terminal controller control unit CONT until the push button signal receiver PBREC receives the push button signal. When the push button signal is received, the MPU recognizes the specific code transmitted from the center and compares it with the self-specific code (Fig. 4-4).
3). If the specific codes match (in this case, the specific code is "A"), the MPU activates the facsimile activation signal oscillator TONEOSC via CONT, sends a facsimile activation signal to the terminal facsimile 4, and sets the terminal facsimile 4 in the reception mode. Let The facsimile reception switching contact 31 is operated to cause the terminal facsimile 4 to receive the image information from the center (FIG. 4 -44). In FIG. 5, the image information 01, 03, n + 1 having the specific code “A” is the terminal facsimile 4
Is output to

If the self-specific code does not match the transmitted specific code, the MPU does not activate the terminal facsimile and does not activate the facsimile reception switching contact 31. In the above example, the number of user homes is one. However, if there are a plurality of user homes having the same self-specifying code, specific group transmission can be realized.

〔The invention's effect〕

According to the present invention, when a specific code is added to the non-voice information from the transmission side and the broadcast is simultaneously transmitted to a plurality of terminals, the terminal determines the specific code and matches the specific code which has been set. By outputting only the information to the terminal at the specific user's home, it becomes possible to transmit the information of the specific destination in the one-way information communication system.

In this embodiment, transmission of facsimile information has been described as an example. However, the present invention can be easily applied to transmission of various non-voice information, for example, data of a computer.

[Brief description of the drawings]

1 is a block diagram of a facsimile image information transmission system according to the present invention, FIG. 2 is a block diagram of a center controller, FIG. 3 is a block diagram of a terminal controller, FIG. FIG. 5 is an example of a case where image information is transmitted by designating various specific codes,
FIG. 6 is a diagram showing a configuration diagram of a conventional free time use communication service. [Explanation of Equal Signs] 1 ... Center facsimile 2 ... Center controller 3 ... Terminal controller 4 ... Terminal facsimile 5 ... Specific code (transmitting side) 6 ... Image information 10 ... One-way communication path 11 ... Bidirectional communication path 12 ... Switching equipment telephone line switching contact 13 ... Terminal controller telephone line switching contact 21 ... Non-voice information reception / transmission switching contact 31 ... Facsimile reception switching contact TEL ... Telephone MPU ... Microprocessor MEM …… Memory area KDC …… Switch, display controller KDU …… Switch, display PBOSC …… Push button signal oscillator M / D …… Modem CONT… Terminal controller control unit TONEOSC …… Facsimile start signal oscillator PBREC …… Push Button signal transmitter AMP …… Amplifier DS …… Dip switch

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kenji Ito 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Atsushi Kondo 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Japan (56) References JP-A-2-230858 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 11/00-11/10 H04N 1/00 102 H04N 1/32

Claims (1)

(57) [Claims] 1. A center device for transmitting facsimile image information, a telephone exchange device, a plurality of terminal devices connected to the telephone exchange device by a telephone line for each of them, and a telephone device when the telephone line is idle. Switching means for switching a line from the telephone exchange device to the center device, and setting a one-way communication path from the center device side to the terminal device side when the telephone line is idle. In the one-way information communication system, the center device transmits a specific signal and facsimile image information in association with each other and a selection signal corresponding to the specific code to the plurality of terminal devices simultaneously. Selecting signal transmitting means, image information transmitting means for simultaneously transmitting the facsimile image information to the plurality of terminal devices, and The specific code and the facsimile image information corresponding to the specific code are read out, and after the selection signal corresponding to the specific code is transmitted by the selection signal transmitting unit, the facsimile image information corresponding to the specific code is converted to the image information. A center control unit for transmitting by a transmission unit, wherein each of the plurality of terminal devices is a facsimile device, a specific code setting unit for setting a self-specific code, and a selection signal for receiving the selection signal from the center device. Receiving means, and activation signal transmitting means for transmitting an activation signal for activating the facsimile apparatus to the facsimile apparatus;
Switching connection means for switching and connecting the facsimile apparatus to the telephone line, and when the selection signal receiving means receives the selection signal, the selection signal and the self-specific code set by the specific code setting means correspond to each other. It is determined whether the facsimile apparatus is in a correspondence relationship. If the facsimile apparatus is in a corresponding relationship, the activation signal is transmitted from the activation signal transmitting means to shift the facsimile apparatus to the reception mode. To the telephone line so that the facsimile device can receive the facsimile image information. The terminal device transmits the facsimile image information from the center device to a specific terminal device. A method of transmitting one-way information communication to a specified destination, characterized in that: