JPH11225222A - Catv telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make all voice broadcast possible even in the case an exchange or all lines of the exchange are in failure in the CATV telephone system. SOLUTION: Upon receipt of a broadcast transmission request sent from terminals 3 or 4, 5 or 6, 7 or 8 in its own path, a master path center device 23 and slave path center devices 24, 25 send broadcast call reception information including information about a plurality of broadcast designation terminal and a broadcast number to an other-path center device, extract and send voice data that are received by an internal voice bus in its own device, and sent from a broadcast transmission terminal to designated terminals in its own path. The other path center device receiving the voice data sends the voice data that are extracted from the external voice bus connected to the broadcast transmission path center device or the master path center device and that are given to the internal voice bus in its own device for the designated terminal in its own path.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CATV telephone system, and more particularly to a CATV telephone system in which a center facility that receives a broadcast transmission request from any one terminal device using a two-way CATV network is connected to all terminals other than the terminal device. The present invention relates to a CATV telephone system capable of broadcasting audio to a device or a plurality of designated terminal devices by simultaneous broadcasting.

[0002]

2. Description of the Related Art In recent years, CATV telephone systems for providing telephone services using a CATV network have been increasing.
The TV telephone system has a broadcasting function in addition to a telephone function.

[0003] In this type of conventional CATV telephone system, a communication path is formed between a route center device and an exchange.
It performs voice communication and voice broadcasting.

That is, in the conventional voice broadcasting system, a broadcast transmission request is transmitted from a terminal device, and a route center device receiving the broadcast transmission request requests a switch to form a communication path, and the communication center forms a communication path. The requested exchange notifies the route center device of the completion of the communication path formation between the corresponding route center devices, and the route center device having received the notification of the completion of the communication path formation calls the communication route in the device. Is formed, and audio transmitted from the broadcast transmission terminal device is transmitted to all designated terminal devices that are broadcast destinations.

[0005]

However, in the conventional audio broadcasting system as described above, since audio broadcasting is performed via an exchange, the availability of audio broadcasting depends on the exchange. In other words, since the center equipment performs all audio broadcasting over the route and between the routes via the communication path with the exchange, if the exchange or all the circuits required by the exchange fail, the center equipment will There is a problem that a communication path with the exchange cannot be formed, and voice communication that realizes audio broadcasting via the exchange cannot be performed.

The present invention has been made to solve such a problem. By connecting an external voice bus, which is a primary group speed line, between each route center device, a switch or all the lines required by the switch are provided. It is an object of the present invention to provide a CATV telephone system capable of performing all audio broadcasting even when a failure occurs and realizing a stable advanced audio broadcasting service.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a bidirectional CATV network and the bidirectional CATV network.
A terminal device that is connected to a network, is capable of connecting a telephone, and is capable of making and receiving voice communications and voice broadcasts;
A center facility for realizing voice communication or voice broadcasting using a channel of a V network, a master route center device constituting the center facility and controlling a master route, and a master route center device constituting the center facility and other than the master route A plurality of slave route center devices for controlling the slave route of the same, an exchange forming a communication route for configuring the center equipment and realizing voice communication, and a switch device for the master route center device and the slave route center device. An internal voice bus for transmitting voice data, and a primary rate line connected to the master route center device and the slave route center device and transmitting voice data between the master route center device and the slave route center device. A CATV telephone system including an external audio bus, wherein the center facility that has received a broadcast transmission request transmitted from the terminal device includes: And performing a voice broadcast by broadcast using the internal and external audio bus without going through the exchange to a plurality of terminal devices that are end device or designated.

According to the present invention, all audio broadcasting can be performed even when the exchange or all the lines required by the exchange fail, and a stable and advanced audio broadcasting service can be realized.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a two-way CATV network, and a terminal device connected to the two-way CATV network to which a telephone can be connected and which can make and receive voice communication and voice broadcasting. A center facility for realizing voice communication and voice broadcasting using the channels of the two-way CATV network; a master route center device for configuring the center facility and controlling a master route; A plurality of slave route center devices for controlling a slave route other than the master route, an exchange forming a communication route for configuring the center equipment and realizing voice communication, the master route center device and the slave An internal voice bus for transmitting voice data in the route center device; and a thread connected to the master route center device and the slave route center device and connected to the master route center device. A CATV telephone system including an external audio bus that is a primary rate line for transmitting audio data between the route center devices, wherein the center equipment that receives a broadcast transmission request transmitted from the terminal device includes: It is to perform audio broadcasting by simultaneous broadcast using the internal and external audio buses without passing through the exchange for all terminal devices or a plurality of designated terminal devices,
This has the effect that the center equipment can perform audio broadcasting to a terminal device designated as a plurality of broadcasting destinations without using an exchange.

According to a second aspect of the present invention, in the master route center device, a plurality of broadcast time slots to which audio broadcast data in an internal audio bus of the master route center device are inputted are set in a slave route center device. The slave route center device constantly transfers the broadcast time slot to the master audio device in the internal audio bus in the slave route center device. By constantly transferring the audio broadcast data in the master route center device to all the slave route center devices by constantly transferring the time slot in the external audio bus connected to the route center device, The audio broadcast data in the route center device is always transmitted to the master route center device, and the audio broadcast data in all the slave route center devices is transmitted. Always transmitted to the master route, an effect that the audio broadcast data of the master route center in the apparatus can be transmitted to all the slave route center device.

According to a third aspect of the present invention, when the master route center device and the slave route center device receive the broadcast transmission request transmitted from the terminal device in the own route, they broadcast to the other route center device. A plurality of designated terminal devices and broadcast reception information including broadcast number information are transmitted, and the sound transmitted from the broadcast transmission terminal device input to the internal audio bus in the own device to the designated terminal device in the own route. On the other hand, the road center device that extracts and transmits the data and receives the voice data,
The voice extracted from the external voice bus connected to the broadcast transmission route center device or the master route center device for the designated terminal device in the own route and input to the internal voice bus in the own device The broadcast transmission route center device loops back the broadcast transmission voice data on its own internal audio bus to a plurality of broadcast destination terminal devices, and the broadcast reception route center device transmits the data to a plurality of broadcast destination terminal devices. An external audio bus connected to the road center device or the master route center device can transmit broadcast transmission audio data via the internal audio bus in the own device.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 shows a CAT according to an embodiment of the present invention.
It is a block diagram which shows the structure of a V telephone system. In FIG. 1, a center facility 2 for realizing voice communication and voice broadcasting using channels of a two-way CATV network 1 is required to operate a switchboard 21 connected to a public line (not shown) and a CATV telephone system. The system includes an overall management device 22 that holds important data and controls the entire system, and route center devices 23 to 25 that function as masters or slaves.

The master route center device 23 controls the master route, and the slave route center devices 24, 2
Reference numeral 5 denotes a slave route other than the master route. Each of the route center devices 23 to 25 includes various devices such as telephone, broadcasting, FAX communication, and data communication as shown by the route center device 23. It comprises a line control unit 231 for controlling communication, a modem unit 232 for transmitting and receiving data to and from the bidirectional CATV network 1, and a distribution unit 233 which is an interface with the bidirectional CATV network 1.

Further, the terminal devices 3 and 4 are connected to the bidirectional CATV network 1 connected to the master route center device 23, and the bidirectional CTV connected to the slave route center device 24.
Terminal devices 5 and 6 are connected to the ATV network 1, and further, a bidirectional CATV connected to a slave route center device 25.
Terminal devices 7 and 8 are connected to the network 1. Each of the terminal devices 3 to 8, as shown by the terminal device 3,
A communication control unit 31 for controlling communication with the
A modem 32 for transmitting and receiving data to and from the V network 1 is provided, and the terminal devices 3 to 8 can be connected to telephones 3a to 8a.

As shown in FIG. 2, each of the master and slave route center devices 23 to 25 includes internal voice buses 234, 244 and 254 for transmitting voice data. An external audio bus 91 which is a primary group speed line connected to the slave route center devices 24 and 25 and transmits voice data between the master route center device 23 and the slave route center devices 24 and 25.
a, 91b, 92a, and 92b.

FIG. 2 is an explanatory diagram showing the operation of the audio broadcast transmitted from the master route according to the embodiment of the present invention, and FIG. 3 is an audio broadcast transmitted from the slave route according to the embodiment of the present invention. It is an explanatory view showing the operation of.

In FIGS. 2 and 3, broadcast time slots TS01 to TS24 in internal audio bus 234 are shown.
Are always input into the time slots TS01 to TS24 in the external audio buses 91a and 92a. The audio data in the broadcast time slots TS01 to TS24 in the internal audio buses 244 and 254 are always input to the time slots TS01 to TS24 in the external audio buses 91b and 92b, respectively.

Next, in the CATV telephone system configured as described above, first, the operation of the audio broadcast transmitted from the master route will be described with reference to FIGS.

First, after receiving the broadcast transmission request transmitted from the terminal device 3, the master route center device 23 requests the general management device 22 to search for a plurality of broadcast destination specifying terminal devices and determine a broadcast number. I do. Upon receiving this request, the central management device 22 transmits the information and the broadcast number B2 to the broadcast destination terminal devices 4 to 8 as responses to the master route center device 23.

The master route center device 2 receiving this response
3 transmits the incoming broadcast information including the information received from the central control device 22 to the slave route center devices 24 and 25. Next, the master route center device 23 converts the voice data transmitted from the terminal device 3 into the internal voice bus 234.
, The broadcast time slot T corresponding to the broadcast number B2
At S02, the audio data extracted from the broadcast time slot TS02 is transmitted to the broadcast destination terminal device 4.

The slave route center device 24 analyzes the received broadcast incoming call information, recognizes the broadcast destination terminal devices 5 and 6 and the broadcast number B2, and broadcasts the broadcast signal on the internal audio bus 234 of the master route center device 23. Time slots TS01 to TS
24 is input to the broadcast time slot TS02 corresponding to the broadcast number 2B from the external audio bus 91a to which the audio data in 24 is constantly input, and is extracted from the broadcast time slot TS02 to the broadcast destination terminal devices 5 and 6. Transmit the audio data.

The slave route center device 25 analyzes the received broadcast incoming call information, recognizes the broadcast destination terminal devices 7 and 8 and the broadcast number B2, and controls the internal voice bus 234 of the master route center device 23. Broadcast time slot TS01
To the broadcast time slot TS02 corresponding to the broadcast number 2B from the external audio bus 92a to which the audio data in the TS24 is constantly input.
Then, the audio data extracted from the broadcast time slot TS02 is transmitted.

Next, the operation of the audio broadcast transmitted from the slave route will be described with reference to FIGS.

First, after receiving the broadcast transmission request transmitted from the terminal device 5, the slave route center device 24 requests the general management device 22 to search for a plurality of broadcast destination designation terminal devices and determine a broadcast number. I do. Upon receiving this request, the central management apparatus 22 transmits the information and the broadcast number B2 to the broadcast destination terminal apparatuses 3, 4, 6, 7, and 8 as a response to the slave route center apparatus 24.

Receiving this response, the slave route center device 24 transmits the incoming broadcast information including the information received from the central management device 22 to the master route center device 23 and the slave route center device 25. Next, the slave route center device 24 inputs the audio data transmitted from the terminal device 5 to the broadcast time slot TS02 corresponding to the broadcast number B2 in the internal audio bus 244, and sends it to the broadcast destination terminal device 6. The audio data extracted from the broadcast time slot TS02 is transmitted.

The master route center device 23 analyzes the received broadcast incoming call information, recognizes the broadcast destination terminal devices 3 and 4 and the broadcast number B2, and broadcasts on the internal audio bus 244 of the slave route center device 24. Time slots TS01 to TS
24 is input to the broadcast time slot TS02 corresponding to the broadcast number 2B from the external audio bus 91b to which the audio data within 24 is constantly input, and extracted from the broadcast time slot TS02 to the broadcast destination terminal devices 3 and 4. Transmit the audio data.

The slave route center device 25 analyzes the received broadcast incoming call information, recognizes the broadcast destination terminal devices 7 and 8 and the broadcast number B2, and controls the internal voice bus 234 of the master route center device 23. Broadcast time slot TS01
To the broadcast time slot TS02 corresponding to the broadcast number 2B from the external audio bus 92a to which the audio data in the TS24 is constantly input.
Then, the audio data extracted from the broadcast time slot TS02 is transmitted.

As described above, according to the present embodiment, by connecting the external voice bus, which is the primary group speed line, between the route center devices, even if the exchange or all the circuits required by the exchange fail, Audio broadcasting can be performed over the road and between the routes, and even if the primary group speed line connected between the route center devices breaks down, the audio broadcasting in the broadcast transmission route can be performed.

In the above-described embodiment, one broadcast transmission terminal device has been described. However, when there are a plurality of broadcast transmission terminal devices, the transmitted audio data of all the broadcasts is temporarily stored in the master route center device. Input to the audio bus, the relevant broadcast originating route center device designates the incoming broadcast data from the internal audio bus in the own route to the incoming broadcast designation terminal device in the own route. This is transmitted to the terminal device, thereby enabling audio broadcasting to all broadcast destination terminal devices.

In the above embodiment, the number of broadcasting time slots of the audio bus is set to 24 and the number of primary group lines is set to one. However, the number of broadcasting time slots is set to the number of B channels of the primary group speed line. Since it is compatible, the present invention can be similarly implemented with other than the number of broadcast time slots and the number of primary group lines in the above embodiment.

[0032]

As described above, according to the CATV telephone system of the present invention, by connecting the external voice bus, which is the primary group speed line, between the route center devices, the exchange or all the lines required by the exchange fail. In this case, all audio broadcasts can be performed, and a stable and advanced audio broadcast service can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a CATV telephone system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an operation of an audio broadcast transmitted from a master route according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an operation of audio broadcasting transmitted from a slave route according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bidirectional CATV network 2 Center equipment 3-8 Terminal device 21 Switching device 22 Central management device 23 Master route center device 24, 25 Slave route center device 31 Communication control unit 32 Modulation / demodulation unit 231 Line control unit 232 Modulation / demodulation unit 233 Distribution unit 234, 244, 254 Internal audio bus 91a, 91b, 92a, 92b External audio bus TS01-TS24 Broadcast time slot

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 3/42 101 H04N 7/16 Z H04N 7/16 H04L 11/18

Claims (3)

[Claims] 1. A bidirectional CATV network and said bidirectional CAT
A terminal device that is connected to a V-network and that can connect a telephone and can make and receive voice communications and voice broadcasts;
A center facility for realizing voice communication or voice broadcasting using a channel of a TV network, a master route center device for configuring the center facility and controlling a master route, and a master facility for configuring the center facility and other than the master route A plurality of slave route center devices for controlling the slave route of, and an exchange forming a communication route to implement the center facility and voice communication,
An internal voice bus for transmitting voice data in the master route center device and the slave route center device, and an internal voice bus connected to the master route center device and the slave route center device; A CATV telephone system comprising a primary rate line for transmitting voice data between devices and an external voice bus, wherein the center equipment which has received a broadcast transmission request transmitted from the terminal device includes all of the terminal devices. Alternatively, a CATV telephone system for simultaneously broadcasting audio to a plurality of designated terminal devices using the internal and external audio buses without passing through the exchange. 2. The master route center device has a plurality of broadcast time slots to which audio broadcast data is input in an internal audio bus of the master route center device connected to the slave route center device. The slave route center device always transfers the time slot to the time slot in the external voice bus, and the broadcast time slot is connected to the master route center device in the internal voice bus in the slave route center device. The audio broadcast data in the master route center device is constantly transmitted to all of the slave route center devices by constantly transferring the data to the time slot in the external audio bus. 2. The CATV telephone system according to claim 1, wherein broadcast data is constantly transmitted to said master route center device. 3. When the master route center device and the slave route center device receive a broadcast transmission request transmitted from a terminal device in the own route, the master route center device and the slave route center device broadcast to the other route center device with a plurality of broadcast destination specifying terminal devices. Transmits broadcast reception information including number information and extracts and transmits audio data transmitted from the broadcast transmission terminal device input to the internal audio bus in the own device to the designated terminal device in the own route. The other road center device that receives the voice data extracts the specified terminal device in its own route from the external voice bus connected to the broadcast transmission route center device or the master route center device. 3. The CATV telephone system according to claim 1, wherein the voice data input to an internal voice bus in the own device is extracted and transmitted.