KR0142892B1 - A optic catv subscriber apparatus having extended user matching module connecting function - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable television subscriber device incorporating an extended user matching module connection function, which allows a cable television service to be independently received from each other in separate rooms away from the subscriber device when receiving service using the optical cable television. When subscribers receive CATV or stereo service in different rooms independently of each other, the user panel or remote control receiver is connected only to the subscriber device, so channel selection must be made in the room where the subscriber device is installed. In the present invention, the subscriber device is configured to be connected through a cable with a plurality of extended user matching modules, so that the telephony device can be connected to another office or room far away from the subscriber device. For the purpose of receiving vision channel selection or stereo audio broadcasting up to 3 subscribers independently and simultaneously, additional adapter and extended user registration module are additionally installed if additional CATV or stereo audio service is desired. CATV service can be extended.

Description

Optical Cable TV Subscriber with Extended User-Matched Mode Access

1 is a block diagram of a general optical cable television subscriber device;

2 is a block diagram of an optical cable television subscriber device incorporating the present invention extended user matching mode connection function.

FIG. 3 is a detailed block diagram of the extended user matching models in FIG.

* Explanation of symbols for main parts of the drawings

1: optical transmitter and receiver 2: demultiplexer

3: Phase synchronization loop 4: Maintenance and repair department

5,31,31A: central processing unit 6,60: user matching unit

6-1: remote control matching unit 6-2: user panel matching unit

7,7A, 7B: Remote control 8: Operator panel

9: B channel matching part 10: telephone

11: 2B + D channel matching unit 12: Integrated Information Network terminal

13: TV / stereo audio decoder

14,14A, 14B: TV 15,15A, 15B: stereo audio

16: DC power supply 17: Backup battery

20: Subscriber unit 30,30A: Extended user matching module

32,32A: External matching unit 33,33A: Remote control receiver

40, 40A: Adapter 65: Expansion custom-fit model connection

The present invention relates to an optical cable television subscriber device incorporating an extended user matching mode connection function, which allows a cable television service to be independently received from each other in a separate room away from the subscriber device when receiving the service using the optical cable television.

That is, when photoelectric conversion of the cable TV (CATV) video or stereo audio signal encoded at the head end is performed, the cents are multiplexed in the office (CENTRAL OFFICE: CO) and 2B + D narrowband integrated information network (INTEGRATED SERVICES DIGITAL NETWORK:

ISDN) signals are sent back to the distribution center for CATV and stereo audio services, B-channel analog telephone service and 2B + D narrowband to multiple subscribers in a given area

An optical cable television subscriber device with built-in extended user matching mode access capability for ISDN service.

In general, an optical CATV subscriber device providing CATV service through optical transmission is configured as shown in FIG.

An optical transmitter / receiver 1 for converting an optical signal of a multiplexed B-channel analog telephone signal and a 2B + D narrowband ISDN signal from a distribution device into an electronic signal, and 155 Mb / s data from the optical transmitter / receiver 1 A de-multiplexer (2) for input and demultiplexing, a phase synchronization loop (3) for synchronizing the demultiplexer (2) by inputting a clock of 155 Mb / s at the optical transmitter / receiver (1), The maintenance / maintenance unit 4 for checking the state and transmitting it to the distribution device, the central processing unit 5 for storing and controlling the state and information of the subscriber device, and being operated by the user under the control of the central processing unit 5. A user matching unit 6 for inputting the information input by the remote controller 9 and the user panel 8 to the central processing unit 5, and the demultiplexer 2 receives the clock signal and the B channel data. B-channel matching section 9 for enabling service through telephone 10 And a 2B + D channel matching unit 11 receiving the clock signal and 2B + D channel data from the demultiplexer 2 so as to enable s-matching with the ISDN terminal 12. The demultiplexer 2 receives and decodes the clock signal and the television and stereo audio data, and the service related to the information input by the remote controller 7 or the user panel 8 is provided by the television 14 and the stereo audio ( 15) a television / stereo audio decoder 13 to be provided through the unit, a DC power supply 16 for supplying current for the circuits to operate, and an auxiliary power supply when the power supply by the DC power supply 16 is stopped. It is comprised including the backup battery part 17 used as a power supply.

The operation of the optical CATV subscriber device configured as described above will be described.

The optical transmitter / receiver 1 converts an optical signal input from a distribution device into an electronic signal to generate data of 155 Mb / s and a clock of 155 MHz. Here, the data of 155 Mb / s is input to the demultiplexer 2, and the clock of 155 MHz is input to the phase locked loop 3. In this case, 155 Mb / s data is combined into three S1Mb / s frames, each of which is 51.bM/s and one channel of B channel or 44.736 Mb / s of three-channel data (DS3-1, 2, 3). 2Mb / s of 2B + D channel data and 64Kb / s of maintenance data. Therefore, the demultiplexer 2 generates 44.736 Mb / s data and 2 Mb / s B-channel or 2B + D panel data. In the phase-lock loop 3, a clock of 155 MHz is generated at 44.736 MHz and 4 MHz to synchronize the demultiplexer 2. FIG.

The 44.736 Mb / s data demultiplexed by the demultiplexer 2 is input to the television-stereo audio decoder 13 in synchronization with the clock of 44.736 MHz of the phase-locked loop 3. Then, the 2 Mb / s B channel or 2B + D channel data demultiplexed by the demultiplexer 2 is synchronized with the 4 MHz clock of the phase locked loop 3 to the B channel matcher 9 or 2B + D. It is input to the channel matching section 11. At this time, the B channel matching unit 9 inputs a 4 MHz clock and B channel data of Wb / s to supply a voice signal and a current to the tip and ring terminals connected to the phone to provide a CEPT framer function. The circuit consists of a circuit, a COMBO IC, and a three-channel SLIC, and the 2B + D channel matching unit 11 inputs a 4 MHz clock and 2 Mb / s 2B + D channel data to the narrowband ISDN through the ISDN terminal 12. Enable S-matching with the terminal. The television-stereo audio decoder 13 outputs service information to the television 14 or the stereo audio 15 according to a signal input through the remote controller 7 and the user panel 8. The signal input through the remote controller 7 and the user panel 8 is input to the user matching unit 6 composed of the remote control matching unit 6-1 and the user panel matching unit 6-2, thereby providing a central processing unit 5. To control.

The central processing unit 5 stores the state of all circuits in the subscriber device and checks it through the maintenance / maintenance unit 4.

When the other person receives CATV or stereo service independently from each other by using the subscriber device as described above in the maintenance / repair unit 4, the user panel or the remote control receiver is connected to the subscriber device only. Since the channel is selected in the room where the subscriber device is installed, the channel in the other room is changed.

The present invention is to solve this problem, it is configured to connect the subscriber device via a cable with a number of expansion user matching module to the TV channel selection or stereo audio through the expansion user matching module in another office or room far away from the subscriber device The purpose of broadcasting is to allow up to three subscribers to receive services simultaneously independently of each other.

In order to achieve the above object, an optical cable television subscriber device incorporating the extended user matching module connection function of the present invention inputs an optical signal of a multiplexed B-channel analog telephone signal and a 2B + D narrowband ISDN signal from a distribution device to an electronic signal. A demultiplexing means for converting the optical transmission and reception means, demultiplexing the 155Mb / s data into the three-channel data and the B-channel or 2B + D-channel data and the maintenance data by the optical transmission and reception means, and from the optical transmission and reception means. A phase synchronization loop for synchronizing the demultiplexing means by generating clocks of 44.736 MHz and 4 MHz from the input clock signal, maintenance means for identifying and transmitting the state of the subscriber device to the distribution device, and the state and information of the subscriber device. Central processing means for controlling the circuits while storing the user, and under the control of the central processing means User matching means for inputting information input by the remote control and the user panel operated by the user to the central processing means, and B channel matching for receiving a clock signal and B channel data from the demultiplexing means to enable service through a telephone. Means, a 2B + D channel matching means for receiving a clock signal and 2B + D channel data in the demultiplexing means so as to enable s-INTERFACE with an ISDN terminal, and a clock signal in the demultiplexing means. Television-stereo audio decoding means for receiving and decoding television and stereo audio data and for providing service on information input by the remote control or the user panel via television and stereo audio, a direct current supplying current for the circuits to operate; Power supply by the power supply means and the DC power supply means And at the subscriber device configured to include all of the extended user matching means in the user matching means, comprising a backup battery means used as an auxiliary power source when stopped. Therefore, the subscribers can connect the extended user matching models to each other independently through a cable, and the central processing unit receives a signal inputted from the extended user matching model connection means in a polling method or an interrupt method, and receives the subscriber's channel. A function of analyzing and transmitting the selection signal to the distribution device is added, and the television audio decoding means is designed and configured to be capable of up to three subscribers.

The extended user matching modules may be composed of at most two, each of which includes remote control receiving means for inputting a signal input from a remote control, a central processing means for interpreting a signal input from the remote control receiving means, and the central processing means. It is composed of an external matching means for transmitting the analyzed signal to the subscriber device via a cable, and is supplied with current by an adapter converting an AC input into a direct current.

The protocol between the extended user matching modules and the extended user matching module access means in the subscriber device is performed using an asynchronous communication scheme or a parallel signaling scheme consisting of a data signal and an enable signal of the external matching means.

The extended user matching module is connected with extended user matching model access means in a subscriber device. It is connected to television and stereo audio in a location separate from the location where the subscriber device is installed. This makes it possible to select channels independently from each other in separate rooms.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, and the same configuration as in the prior art will be described using the same reference numerals.

2 is a block diagram showing the construction of an optical cable television subscriber device incorporating the extended user matching module connection function of the present invention.

An optical transmitter and receiver 1 for inputting an optical signal of a multiplexed B-channel analog telephone signal and a 2B + D narrowband ISDN signal from a distribution device to an electronic signal, and 155 Mb / s data is input from the optical transmitter 1 A demultiplexer (2) for demultiplexing into three-channel data (DS3-1, 2, 3), B-channel or 2B + D-channel data, and maintenance data, and a clock input from the optical transmitter / receiver 1 A phase synchronizing loop (3) for generating clocks of 44.736 MHz and 4 MHz from the signal to synchronize the demultiplexer (2); A maintenance / maintenance unit 4 for checking the state of the subscriber device and transmitting it to the distribution device, a central processing unit 5 for controlling the circuits while storing the state and information of the subscriber device, and control of the central processing unit 5; A user matching unit for inputting information input by the remote control unit 7 and the user panel 8 operated by the user and information from the extended user matching module 30 or 30A while receiving the input to the central processing unit 5. 60, the B-channel matching unit 9 for receiving the clock signal and the B-channel data from the demultiplexer 2 to enable service through the telephone 10, and in the demultiplexer 2; 2B + D channel matching section 11 for receiving S-matching with ISDN terminal 12 by receiving clock signals and 2B + D channel data, and demultiplexing section 2 for clock signals and television and stereo audio. The remote control 7 further receives and decodes data. Services for information input by the user panel 8 or the extended user matching module 30 or 30A may be provided up to three subscribers via the televisions 14, 14A, 14B and stereo audio 15, 15A, 15B. TV / stereo audio decoder 13, a DC power supply 16 for supplying current for the circuits to operate, and a backup battery used as an auxiliary power supply when the power supply by the DC power supply 16 is stopped. It is comprised including the part 17.

In the above configuration, the user matching unit 60 includes a remote control matching unit 6-1 for matching a signal by the remote controller 7 and a user panel matching unit 6-2 for matching a signal by the user panel 8. And an extended user matching module connection unit for connecting a signal by the extended user matching modules 30 or 30A to enable the selection of service information input by remote controllers 7A and 7B at a separate location from where the subscriber device 20 is installed. It consists of 65.

In FIG. 1, the configuration of the extended user matching module 30 or 30A connected to the subscriber device 20 through the extended user matching module connection 65 configured in the user matching unit 60 is shown in FIG. It can be configured up to two.

Each extended user matching module 30 or 30A includes a remote control receiver 33 and 33A for receiving a signal input from the remote controllers 7A and 7B, and a signal input from the remote control receiver 33 and 33A. And an external matching unit 32, 32A for transmitting signals interpreted by the central processing units 31 and 31A and the central processing units 31 and 31A to the subscriber unit 20 through cables 1 and 2. The current is supplied by the adapters 40 and 40A which convert AC into DC.

The operation of the present invention is basically a television 14A in a different room via a cable to the subscriber device 20 which can operate the remote control 7 and the user panel 8 and can receive the television 14 and the stereo audio 15 service. Or 14B) and the extended user matching module 30 or 30A in order to allow each subscriber to be independently serviced by an extended user matching module 30 or 30A connected near the stereo audio 15A or 15B. Transmission between the subscriber and the subscriber device 20, processing the signal in the subscriber device 20, and thus interpreting the information selected by each subscriber, thereby resolving the respective televisions 14, 14A, 14B or stereo audio ( 15, 15A, and 15B) is the main process. This is briefly described as follows.

The three-channel data DS3-1, 2, 3 demultiplexed by the demultiplexer 2 are input to the television / stereo audio decoder 13. The B channel data and the 2B + D channel data are input to the B channel data matching section 9 and the 2B + D channel data matching section 11, respectively. At this time, the B channel data matching section 9 and the 2B + D channel data matching section 11 are synchronized by a phase-locked loop 3 generating 4 MHz, and the television / stereo audio decoding section 13 is 44.736 MHz. Is synchronized by a phase-locked loop (3) generating In addition, the user matching unit 60 transmits a selection signal by the remote controller 7 and the user panel 8 connected to the subscriber device 20 and the remote controllers 7A and 7B input by the extended user matching module 30 or 30A. Input the selection signal to the central processing unit (5). The central processing unit 5 continuously inputs the selection signals in a polling or interrupting manner to interpret the channel selection signal, and then transmits the selection signals to the distribution apparatus so that service information for the corresponding channel is output. In this case, the protoron between the extended user matching module 30 or 30A and the user matching unit 60 of the subscriber device 20 may be processed using a non-equivalent communication method or a parallel signal system consisting of a data signal and an external matching unit enable signal. Can be.

Then, through the ISDN terminal 12 for S-matching the signal generated by the 2B + D channel matching unit 11 configured in the subscriber device 20, the service is received through the ISDN terminal, and the B-channel matching unit ( The signal generated in 9) is used to receive telephone service.

As described above, according to the present invention, up to three subscribers can simultaneously receive a CATV broadcast or stereo audio service at a distant and independent place, and also if the user wants additional CATV or stereo audio service in addition to the basic service, an adapter and an extended user By adding only matching modules, CATV service can be extended.

Claims (3)

Optical transmission and reception means for converting an optical signal of a multiplexed B-channel analog telephone signal and a 2B + D narrowband ISDN signal from an distribution device into an electronic signal; and 155 Mb / s, data input from the optical transmission and reception means, and three-channel data Demultiplexing means for demultiplexing with B-channel or 2B + D channel data and maintenance / repair data: A phase for synchronizing the demultiplexing means by generating clocks of 44.736 MHz and 4 MHz from a clock signal input from the optical transmission / reception means; A synchronous loop: maintenance means for checking the state of the subscriber device and transmitting it to the distribution device; a central processing means for controlling the circuits while storing the state and information of the subscriber device; and a user under the control of the central processing means. User matching means for inputting, by a central processing means, information input by a remote control and a user panel operated by: B channel matching means for receiving the clock signal and the B channel data from the multiplexing means to enable service through the telephone; and receiving the clock signal and the 2B + D channel data from the demultiplexing means and receiving the data to receive the ISDM terminal and the S channel. 2B + D channel matching means for enabling S-INTERFACE; Television / stereo audio decoding means for receiving and decoding clock signals and television and stereo audio data in said demultiplexing means so that a service relating to information input by said remote control or user panel is provided through television and stereo audio; The user registration in the subscriber device comprising a DC power supply means for supplying a current for the circuits to operate and a backup battery means used as an auxiliary power supply when the power supply by the DC power supply means is stopped. The means includes a means in the extended user matching module, and connects the extended user matching module via a cable to allow subscribers to receive services independently from each other, and to the central processing means a signal input from the extended user matching module connection means. Receiving the polling method or the interrupting method, and interpreting the channel selection signal of the subscriber and transmitting the signal to the distribution device, wherein the TV / stereo audio decoding means is designed and configured to allow up to three subscribers. Match Optical cable television subscriber unit with built-in module connection. The remote control unit according to claim 1, wherein the extended user matching module is composed of at most two devices and is connected to the television and the stereo audio at a place separate from the place where the subscriber device is installed, each of which receives a signal input from the remote control unit. and; An adapter for converting an AC input into a direct current by a central processing means for interpreting a signal input from the remote control receiving means and an external matching means for transmitting the signal interpreted by the central processing means to the subscriber device via a cable; An optical cable television subscriber unit with an extended user matching module connection characterized by being supplied with current. The method of claim 1, wherein the protocol between the extended user matching module and the extended user matching module access means in the subscriber device is performed by using an asynchronous communication method or a parallel signaling method consisting of a data signal and an external matching means enable signal. An optical cable television subscriber unit with an extended user matching module connection.