KR970019596A - Subscriber device for subscriber video service extension and matching structure - Google Patents

Abstract

An object of the present invention is to provide an economic burden for subscribers by providing a function to enable two or more video services at the same time by using one subscriber device (NT) and an additional particle device in a PON using TDM / polling. It is to provide a subscriber device and its matching structure which can reduce and expand video services.

In order to achieve the above object, the present invention adds a mode switching function to an existing main subscriber device to select the number of video services, and enables channel selection according to the number of video services. One video service is performed by the main subscriber device, and the other video signal is sent to another additional subscriber device using a coaxial line. The subsidiary device has a function of restoring the compressed digital video signal and a channel selection function. The channel selection signal is sent back to the main subscriber device through a coaxial line, and the main subscriber device receives the channel selection signal from the additional subscriber device. Gather and send to subscriber service device LT.

Description

Subscriber device for subscriber video service extension and matching structure

Since this is an open matter, no full text was included.

3 and 4 are matching structure diagrams of a subscriber device according to the present invention.

5 is a structural diagram of an uplink data frame according to the present invention.

Claims (6)

A first photoelectric conversion unit 61 for converting an optical signal of 155.51 Mb / s into an electrical signal, and 155.52 for demultiplexing 155.52 Mb / s signals output from the observation conversion unit 61 into three 51.84 Mb / s signals 51.84 Mb / s which demultiplexes the 51.84 Mb / s signal output from the Mb / s demultiplexer 62 and the 155.52 Mb / s demultiplexer 62 into individual signals of video / audio, telephone, data and maintenance Mode 63, a mode switching unit 612 for outputting a control signal operated by the switching switch when the device is installed depending on whether or not to use a number of secondary subscriber device, the image of the output of the 51.84 Mb / s reverse multiple unit 63 And a video / audio signal selector 62 which receives audio data and selects and outputs a video / audio signal according to a mode control signal from the mode switcher 612 as a digital signal. Provides the subscriber with the video / audio signal from the video signal / sound selector 62, and transmits the data signal and the telephone signal from the 51.84 Mb / s demultiplexer 63 to the subscriber. Signal connection means for transmitting data and telephone signals into the device, and receiving and receiving maintenance signals during the output of the 51.84 Mb / s reverse multiplexer 63 to manage subscribers and collect maintenance signals generated in the device. Maintenance unit 67 for outputting. A channel selector 69 for receiving the channel information selected by the subscriber and converting the digital information into a digital signal; and a control signal generator 613 for receiving a mode control signal from the mode switcher 612 and outputting a transmission data frame configuration control signal. ), A mode control signal of the mode switching unit 612, a frame configuration control signal from the control signal generator 613, a telephone signal from the subscriber via the telephone connection unit 65, and a data connection unit 66. 25.92Mb / s multi-part 610 to make data from subscribers, channel selector 69 and channel select signal from additional subscribers into 25.92Mb / s data frame, and 25.92Mb / s And a second photoelectric conversion unit (611) for converting and outputting an electrical signal output from the multiplexer (610) to an optical signal. The video / audio decoder 68 according to claim 1, wherein the signal connection unit converts the compressed video / audio signal into a digital signal output from the video / audio decoder 68 into an original video / audio signal. And a telephone connection unit 65 which receives the telephone data output of the 51.84 Mb / s reverse multiplexer 63, converts the digital signal into a telephone signal, and converts the charge signal on the subscriber side into a digital signal, and outputs the digital signal. In the optical CATV network, characterized in that it comprises a data connection unit 66 for receiving a data signal of the output of the 51.84Mb / s reverse multiplexer 63 to interface to the subscriber side, and to interface and output the data signal of the subscriber side. Primary subscriber device for video service extension. The data frame output by the 25.92 Mb / s multiplexer 610 is configured to include mode classification information, subscriber code information, telephone information, data information, maintenance signal information, and first to third channel selection information. A main subscriber device for video service extension in an optical CATV network, comprising: 4. The control signal output from the control signal generator 613 according to claim 3 is characterized in that the mode classification information, the subscriber code information, the telephone information, the data information, the maintenance signal and the channel selection when one subscriber uses only the subscriber subscriber device. A first control signal for generating a data frame structure including 1 information, and mode classification information, subscriber code information, telephone information, data information, and maintenance signal information when using one subscriber main subscriber device and one sub subscription device. A second control signal for generating a data frame structure including channel selection # 1 information and channel selection # 2 information; and mode identification information and subscriber code information when a subscriber uses the main subscriber device and the two additional subscriber devices. The data includes the telephone information, telephone information, data information, maintenance signal information, channel selection, 1 information and channel selection ＃ 2 information and channel selection ＃ 3 information. Note network terminal for video services in the extension of the optical CATV network, characterized in that at least one of the third control signal to generate a frame structure. 64Kb / channel information selected by the subscriber / channel decoder and 71 which converts and outputs the compressed 51.84Mb / s digital video / audio signal received from the main subscriber device through the coaxial line into the original video / audio signal. and a channel selector (72) for converting the digital signal to s and transmitting the same to the main subscriber device. In the subscriber device matching structure for the video service extension in the optical CATV network, the optical signal transmitted from the subscriber service device 31 of the optical CATV network is received through the passive optical splitter 32, the first video / audio signal, A main subscriber device which separates and outputs the telephone signal data into a channel selection signal from the subscriber side and multiplexes it with the telephone and data signals from the subscriber and outputs it to the subscriber service device; and a second image connected to the main subscriber device. And at least one supplementary subscriber device coupled to provide a sound signal to the subscriber side and to transmit a channel selection signal of the subscriber side to the primary subscriber device. ※ Note: The disclosure is based on the initial application.