JPS60160789A - Addressable catv system - Google Patents

Abstract

PURPOSE:To attain urgent notice to a specific terminal receiver by multiplexing a control code for emergent notice to a control data train transmitted from a transmission station to terminal receivers and allowing the terminal receivers to decode the code and output it in voice. CONSTITUTION:A transmission station 22 is provided with an address controller 24 designating an address of a terminal receiver 23 to which a message is transmitted and a data modulation circuit 25 modulating an output of the address controller 24 to a high frequency signal suitable for the transmission. On the other hand, the terminal receiver 23 is connected in a way of branching with a data demodulating circuit 26 demodulating a high frequency signal for address designation at the input of a channel converter 6, and the demodulated address data and an address of a ROM28 are collated by an address collation control circuit 27. When the address is coincident with the designated address as the result of collation, a reception permission instruction is outputted to the channel converter and also emergency notice information is outputted through a voice synthesis circuit 29 and a speaker 30.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an addressable ATV system that allows an arbitrary terminal receiver to output a fixed phrase based on transmitted control data.

It has been a long time since the 0ATV system has attracted attention as a new media in conventional broadcasting technology. The addressable method, which assigns an address to each terminal and allows only terminal users who meet certain conditions to receive the information by means of an address signal from the transmitting station, is attracting attention as a promising method.

FIG. 1 is a schematic circuit configuration diagram showing an example of a conventional 0ATV system that does not employ this type of seven-dress triple system. C! In the ATV system, a plurality of terminal receivers 3 are connected to a transmitting station by wire,
Each terminal receiver 3 is a branch installed in the cable for signal transmission! By branching and introducing such a signal and operating the channel converter 6, the broadcast program of the desired station can be displayed on the television receiver 7Vc. A head-end device is provided in the transmitting station λ for inputting images from the public antenna and images from the independent broadcast GLODARAM. It will be broadcast on cable.

By the way, the mixer 10 is provided to send out emergency notification information to unused users in addition to the usual discretionary broadcast program, and in this example, it is equipped with an input device such as a microphone. A voice transmitter 7.2 is connected. In other words, when an emergency situation occurs, the anallancer in the transmitting station speaks the emergency notification information into the microphone, so that the emergency notification information can be sent to each terminal receiver 3. That's why.

On the other hand, it is assumed that this type of emergency notification information is always transmitted to all terminals regardless of whether each terminal receiver 3 is deaf or not. '／,%
An audio receiver/3 and a speaker/'iZ are required to receive the audio signal modulated and sent by 72,
Furthermore, the audio receiver 13 must be kept in a standby state in which the power source is on so that it can receive emergency notification information at any time. Therefore, a voice receiver for receiving emergency notification information/3
Before discussing the cost-effectiveness of audio receiver/3, cable broadcasting users tend to complain about the uneconomical nature of leaving audio receiver/3, which is rarely used, on all the time. And the penetration rate of speakers/Hiroshi did not increase.

For this reason, there is room for improvement, such as enriching the content of emergency notification information and providing more detailed information services. For this reason, conventional cable broadcasting systems, which cannot provide separate information for each user or group, have not been able to provide information services that can meet the needs of a large number of people.

DISCLOSURE OF THE INVENTION The present invention eliminates the above-mentioned drawbacks, and includes multiplexing a control code for emergency notification into a control data string transmitted from a transmitting station to a terminal receiver designated by an address signal, and transmitting the control code to the terminal receiver. Addressable 0AT that makes it possible to issue emergency notifications only to specific terminal receivers by outputting a fixed phrase according to the result of decoding the control wholesale code.
The purpose is to provide a V system.

In order to achieve this objective, the present invention connects a transmitting station and a plurality of terminal receivers by wire, and when an address signal from an address control device in the transmitting station is transmitted, only a specific terminal receiver receives a message. In an addressable ATV system capable of receiving (g), the transmitting station has a multiplexing means for multiplexing a control code for an emergency button into a part of a control data string for controlling a terminal receiver; The terminal receiver includes a decoding means for reading the control data string and control data sent from the transmitter, the output of the decoding means, and a voice generated by speech-synthesizing the fixed phrase. The gist of this is that

According to this HJ, 1
) Emergency notification is made by multiplexing the control code for emergency notification into the control data string, so there is no need for direct voice input from an anallancer, etc. at the transmitting station, and there is an audio receiver on the terminal receiver side that is always on standby. etc., and simply use speech synthesis to utter a fixed phrase corresponding to the control code sent from the transmitting station, and furthermore, only the specific terminal receiver specified by the address signal can decode the control code. Because it is possible to send necessary emergency notification messages only to specific terminal receivers, this makes it possible to take advantage of the features of the addressable system and provide detailed information services to unused users. It has excellent effects such as

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will now be described with reference to FIGS. 2 and 3. FIG. 2 shows the addressable 0ATV of the present invention.
FIG. 3, a schematic circuit diagram showing one embodiment of the system, is a diagram showing one format of a control data string in the addressable 0ATV system shown in FIG. 2. In addition,
In FIG. 1, the same components as in FIG. 1 are given the same reference numerals.

In FIG. 2, the addressable ATV system 2/ has a plurality of terminal receivers 23 connected to the transmitting station 72 via a cable network, each of which is assigned an identification address, and the transmitting station 22 side It uses an addressable system that allows messages to be selectively delivered to any terminal receiver by specifying an address. Therefore, transmitting station n
On the side is a terminal receiver that is about to transmit a message, 23
An address control device 2 that can specify an address, and a data modulation circuit 25 that modulates the output of the address control device 2 into a high frequency signal suitable for signal transmission are provided.

On the other hand, on the terminal receiver) J side, a data demodulation circuit 26 for demodulating a high frequency signal for address designation (address signal) is branch-connected to the input side of the channel converter B, and this data demodulation circuit 26 is connected to the input side of the channel converter B. An address verification control circuit 27 for control is connected to the channel converter. This address verification control circuit 27 is attached with a removable ROM cartridge 2 that stores the assigned address, and the address stored in the ROM cartridge 2 is the result of verification by the address verification control circuit 27. When the designated address pressures demodulated by the demodulation circuit n match 1 to 1, the address verification control circuit 27 outputs a reception permission command to the striped channel converter B.

Further, the address verification fljlJ J1 circuit 27 is connected to a voice generating means such as a voice synthesis circuit λwa and a speaker 3θ, which constitute the main parts of this specification. This voice generation means is for converting the emergency notification information into voice and outputting it.The voice synthesis circuit 29 stores several types of fixed phrases in advance, and the voice synthesis circuit 29 stores several types of fixed phrases in advance, and the voice synthesis circuit 29 stores them in advance, and the voice synthesis circuit 29 stores several kinds of fixed phrases in advance, and the voice synthesis circuit 29 stores them in advance and uses them as specified by the commands from the address matching control circuit 27. The fixed phrases are synthesized into speech and supplied as an audio signal to the speaker 3θ.

Incidentally, the designation commands for the plurality of fixed phrases are transmitted from the address control device 2 in the transmitting station 24 together with the address signal as fixed phrase designation data in a control data string. That is, as shown in FIG. 3, the :1ilI Ml data string begins with data indicating the start of the message indicated by STX, followed by an address signal indicated by. This address signal is followed by data M indicating the beginning of the message portion, and further followed by individual messages M1 to Mn between data ETX indicating the end of the message. Note that the data BCC is data for error correction.

Here, for each message data M1 to Mn,
A control code for specifying a fixed phrase corresponding to emergency, @, and notification information is included, and the data demodulation circuit 26 and address verification control circuit 2 decode this control code.
7 decodes and operates the speech synthesis circuit 29.

Therefore, the transmitting station! JK does not require an anallancer, and emergency notification can be made by inputting essential emergency notification information in the form of control data to the address control device and data modulation circuit 73 as multiplexing means. Also,
The emergency notification is sent to all terminal receivers η individually or simultaneously.
It is possible to provide detailed information services by changing the content of individual emergency announcements. In addition, in the addressable 0 ATV system, 2/, it is assumed that all terminal receivers are in a power-on state at all times, so
Terminal users can accept the credibility of emergency notifications without knowing that there is an additional negative 1μ (i'), thereby promoting acceptance of the system itself.

As explained above, according to the addressable ATV system, 2/, the emergency notification is made by multiplexing the control 1 code for emergency notification onto the control data string transmitted to the transmitting station, the terminal receiver, 23. Therefore, the transmitting station 9. On the I side, direct voice input using an anallancer or the like is uneasy, and there is no need to provide a terminal receiver, a constant standby signal on the 23 side, the fourth voice receiver 73, etc., and the control simply sent from the transmitting station n. It is only necessary to utter a fixed phrase corresponding to the code using voice synthesis, and furthermore, only the specific terminal receiver 33 specified by the address signal can input the control Ml code fj! Since it can read F, it is possible to send necessary emergency notification messages only to specific terminal receivers, and this makes it possible to take advantage of the features of the addressable system and provide detailed information services to terminal users. It is.

[Brief explanation of the drawing]

FIG. 1 is a schematic circuit configuration diagram showing an example of a conventional OATV system, and FIG. β is an addressable OA of the present invention,
Schematic circuit diagram showing one embodiment of the TV system, Part 3
The figure is a diagram showing an example of the format of a control data string in the addressable 0 ATV system shown in FIG. 2. , 2/...addressable 0ATV system, n...
・Transmitting station, 23...terminal reception? (,2'l...address control device 1.23...data modulation circuit, thickness...data tailing circuit 1.77...address verification side ji11 circuit, ri...speech synthesis circuit, 30 ...Speaker.!Samurai license applicant Japan Drowsiness Home Electronics Co., Ltd. Figure 1

Claims (1)

[Claims] In an addressable 0 ATV system in which a transmitting station and a plurality of terminal receivers are connected by wire, and only a specific terminal receiver can receive a message by an address signal from an address control device in the transmitting station, the transmitting The station has multiplexing means for multiplexing a control code for emergency notification into a part of the control data string for controlling the terminal receiver,
The terminal receiver includes a decoding means for decoding the control data string and control code sent from the transmitting station, and a speech generating means for generating speech by synthesizing a fixed phrase according to the output of the decoding means. Addressable 0ATV system with.