KR19980069599A - Cable TV which becomes digital information processing - Google Patents

Abstract

According to the present invention, an RF signal input is selected and processed to provide a digital information processing such that the analog cable processing is digital information processing through video and audio signal processing and two-way communication in a system to be an additional service such as Internet service. A tuner unit, an output from the tuner unit, an output of a decoding circuit unit, an output of an audio / video signal, and an output of the signal processor; A modulator circuit unit, a T-buoy unit for inputting an audio / video signal and an RF signal of the modulator circuit unit, an RF modem unit for receiving an RF signal input to the tuner unit or modulating and transmitting an RF signal; FSC modem unit and decoding circuit unit are controlled A microcomputer unit to be moved, a decoding circuit unit interworking with the microcomputer unit and a signal processing unit, an RF signal input to the digital unit and the tuner unit which are interlocked with the microcomputer unit and the TV unit to process digital signals It consists of a buffer unit for decoding or demodulating the connected and compressed signal.

Description

Cable TV which becomes digital information processing

1 is a block diagram of a cable TV according to the prior art.

2 is a block diagram of a cable to be subjected to digital information processing according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: tuner unit 20: signal processing unit

30: modulation circuit unit 40: FSC modem unit

50: microcomputer unit 60: decoding circuit unit

70: digital portion 80: buffer portion

90: TV unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cable shift for digital information processing, and more particularly, to an analog cable shift for digital information processing through video and audio signal processing and two-way communication in a system.

In general, a broadcast signal transmitted from a broadcasting station is input to a converter of a subscriber through a cable, and the cable TV of the subscriber is demodulated by the input broadcast signal through a modem therein so as to be reproduced as a normal broadcast signal by the converter. The processed and transmitted broadcast signal is displayed on the screen.

1 is a block diagram of a cable tie according to the prior art.

According to the related art, a cable tuner includes a tuner unit 10 in which a received RF signal is processed, an output from the tuner unit 10 as an input, and an output of a descramble circuit unit 60 as an input. An audio / video signal processor 20 for outputting an audio / video signal, an RF modulation circuit unit 30 for modulating the output of the RF signal by outputting the audio / video signal processor 20, and An RF signal input to the tuner unit 10 or an RF signal is modulated and transmitted by the RF signal (Frquency Shift Keying) modem unit 40, and the FSC modem unit 40 and the decoding circuit unit 60 is controlled. And the decoding circuit unit 60 and the microcomputer 50 to control the audio / video signal processing unit 20 so that the microcomputer unit 50 and the microcomputer unit 50 interlocked with the microcomputer 50 may be decrypted. Being remote It consists of a fisherman 70.

In order to perform two-way communication, the cable station according to the related art is modulated and outputs an image, an audio signal, and a data government to an RF signal, and the image and audio signals are received from the received RF signal by the tuner unit 10. Is selected through the audio / video signal processing unit 20 and the RF modulation circuit unit 30 to output the audio signal and the audio / video signal, and the data information through the FM modem unit 40 through the microcomputer unit In association with 50, data is processed.

In addition, the signal is encrypted and transmitted to the subscriber so that only the subscriber is allowed to watch the broadcast, each subscriber to the FSC modem unit that can send and receive data with the broadcast station so that only the authorized subscriber can watch the received signal 40 is used.

However, in order to transmit and receive necessary information between a broadcasting station and a subscriber, the conventional cable according to the prior art has a problem that it is difficult to implement a service requiring a large amount of data information processing such as an Internet service function.

Therefore, the present invention has been made to solve the above-mentioned conventional problems. The main object of the present invention is that the analog cable is digital information processing through video and audio signal processing and two-way communication in the system to be an additional service such as Internet service. This is to provide a cable TV that is digital information processing.

Features of the present invention for achieving the above object;

A tuner unit to which an input RF signal is tuned and processed, an output is input from the tuner unit, an output of a decoding circuit unit is input, a signal processor for outputting an audio / video signal, and an output of the signal processor is input. Is modulated and outputs an RF signal, a TV unit to which an audio / video signal of the signal processing unit and an RF signal of the modulation circuit unit are input, an RF signal input to the tuner unit, or an RF signal is modulated and transmitted. A F modem modem unit, a microcomputer unit for controlling and interworking with the F modem modem unit and the decoding circuit unit, a decoding circuit unit for interworking with the micom unit and controlling a signal processing unit, and a digital signal interworking with the microcomputer unit and TV unit The RF signal and the input to the digital unit and the tuner unit It consists of a buffer unit for decoding or demodulating the connected and compressed signal.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cable for digital information processing according to the present invention will be described in detail with the accompanying drawings.

2 is a block diagram of a cable to be subjected to digital information processing according to the present invention.

According to the present invention, the digital information processing is performed;

A tuner unit 10 to which the input RF signal is tuned and processed, an output from the tuner unit 10 as an input, and an output of the decoding circuit unit 60 as an input, and a signal processing unit for outputting audio / video signals ( 20), the modulation circuit unit 30 which is modulated by the output of the signal processing unit 20 and outputs the RF signal, and the audio / video signal of the signal processing unit 20 and the RF signal of the modulation circuit unit 30 The TV unit 90 to be input, the RF signal input to the tuner unit 10, or the FM signal modem unit 40 to which the RF signal is modulated and transmitted, and the FM modem unit 40 And a decryption circuit unit 60 to control and interoperate with the decryption circuit unit 60, a decryption circuit unit 60 to control the signal processing unit 20 to interoperate with the micom unit 50, and decrypt the encryption signal. Digital scene in conjunction with 50 and TV 90 It is composed of a digital unit 70 and the buffer unit 80 to decode the compressed signal or the modem to be connected to the RF signal input to the tuner section 10 to be processed.

The operating state of the cable shift for digital information processing according to the present invention configured as described above will be described.

In the case of the cable TV which is digital information processing, the additional analog device is installed in the conventional analog cable system to configure data services such as the Internet and two-way communication to be implemented in a general TV. Received through the V 10, the subscriber tunes the desired channel, and watch the broadcast on TV, and is transmitted through the F-S modem from the broadcasting station so that only the authorized subscriber can watch.

In addition, the function of transmitting and receiving a large amount of information data such as an Internet service is a buffer unit for decoding or modulating and demodulating the compressed signal to be connected to the digital unit 70 and the RF signal input to the tuner unit 10 is processed digital signal Through 80.

As described above, the cable TV which is digital information processing according to the present invention is capable of receiving services by sharing functions such as pay channels and multi-channel broadcasting provided by the cable TV and Internet functions using digital signals. There is.

The present invention is not limited to the above embodiments, and it is apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (1)

A tuner unit in which an input RF signal is tuned and processed; A signal processor for outputting an output from the tuner unit and an output of a decoding circuit unit, and outputting an audio / video signal; A modulation circuit unit which is modulated by using the output of the signal processor as an input and outputs an RF signal; A TV unit to which an audio / video signal of the signal processor and an RF signal of a modulation circuit unit are input; An RF modem unit for receiving an RF signal input to the tuner unit or for outputting an RF signal; A microcomputer unit for controlling and interworking the FSC modem unit and the decoding circuit unit; A decoding circuit unit interworking with the microcomputer unit and controlling a signal processing unit; A digital unit which processes the digital signal in association with the microcomputer unit and the TV unit; And And a buffer unit coupled to the RF signal input to the tuner unit and configured to decode or demodulate and compress the compressed signal.