KR970004745A - KBPS circuitry for televisions with two tuners - Google Patents

KBPS circuitry for televisions with two tuners Download PDF

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Publication number
KR970004745A
KR970004745A KR1019950015788A KR19950015788A KR970004745A KR 970004745 A KR970004745 A KR 970004745A KR 1019950015788 A KR1019950015788 A KR 1019950015788A KR 19950015788 A KR19950015788 A KR 19950015788A KR 970004745 A KR970004745 A KR 970004745A
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KR
South Korea
Prior art keywords
kbps
synchronization
tuner
tuners
switching unit
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Application number
KR1019950015788A
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Korean (ko)
Inventor
강철희
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구자홍
Lg 전자 주식회사
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Priority to KR1019950015788A priority Critical patent/KR970004745A/en
Publication of KR970004745A publication Critical patent/KR970004745A/en

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  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

본 발명은 KBPS(케이비피에스:Korea Broadcastion Program System) 회로에 관한 것으로서, 특히 두개의 튜너가 내장된 텔레비젼에 KBPS 회로를 적용함에 있어 제2튜너에서 검출한 KBPS 데이타를 제1튜너에서 선국된 영상에 중첩시켜 화면출력할 수 있도록 한 두개의 튜너가 내장된 텔레비젼에 사용가능한 KBPS 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a KBPS (Korea Broadcastion Program System) circuit, and in particular, in applying a KBPS circuit to a television with two tuners, KBPS data detected by a second tuner is applied to an image tuned by the first tuner. The present invention relates to a KBPS circuit that can be used for a television with one or two tuners that can be superimposed and outputted.

종래의 KBPS 회로는 하나의 튜너가 내장된 텔레비젼에 적용되도록 제작되었기 때문에 두개의 튜너(1)(1A)를 사용하는 텔레비젼에 적용될때 제1튜너(1)에서 선국된 채널과 제2튜너(1A)에서 선국된 채널이 다를경우, 각 채널의 동기신호가 다르기 때문에 제2튜너(1A)에서 검출된 동기신호에 동기된 KBPS 데이타가 제1튜너(1)에서 검출된 동기신호에서 선국된 채널의 영상신호에 동기되지 못함으로 KBPS 데이타가 화면에 정상적으로 출력되지 않게 되는 문제점이 있다.Since the conventional KBPS circuit is designed to be applied to a television with a built-in tuner, the channel tuned in the first tuner 1 and the second tuner 1A when applied to a television using two tuners 1 and 1A are used. If the channels tuned in step 1) are different, the synchronization signals of the respective channels are different, so that the KBPS data synchronized with the sync signal detected by the second tuner 1A is the same as that of the channel tuned from the sync signal detected by the first tuner 1). There is a problem that KBPS data is not normally output on the screen because it is not synchronized with the video signal.

따라서, 본 고안은 상기 문제점을 해결하기위해 두개의 튜너가 내장된 텔레비젼에 KBPS 회로를 적용함에 있어 제2튜너에서 검출한 KBPS 데이타를 제1튜너에서 선국된 영상에 중첩시켜 화면출력할 수 있도록 한 두개의 튜너가 내장된 텔레비젼에 사용가능한 KBPS 회로이다.Therefore, in order to solve the above problems, the present invention is to apply the KBPS circuit to a TV with two tuners, and to output the superimposed KBPS data detected by the second tuner to the image tuned by the first tuner. It is a KBPS circuit that can be used in a television with two tuners.

Description

두개의 튜너가 내장된 텔레비젼에 사용가능한 케이비피에스(KBPS) 회로KBPS circuitry for televisions with two tuners

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 두개의 튜너가 내장된 텔레비젼에 적용된 본 고안의 KBPS 회로를 보인 블럭도.3 is a block diagram showing the KBPS circuit of the present invention applied to a television with two tuners.

Claims (3)

두개의 튜너(21)(25)를 구비한 텔레비젼 수상기에 있어서, 상기 제1튜너(21)에 의해 선국된 영상신호에서 동기신호를 검출하여 스위칭부(29)의 일측 입력단으로 공급하는 제1동기 검출부(27)와, 상기 제2튜너(25)에 의해 선국된 영상신호에서 동기신호를 검출하여 상기 스위칭부(29)의 타측 입력단으로 공급하는 제2동기 검출부(28)와, 마이컴(36)에서 출력되는 동기 제어신호에따라 상기 제1, 제2동기 검출부(27)(28)로부터 입력되는 동기신호중 하나를 선택 출력하는 스위칭부(29)와, 상기 제2튜너(25)에 의해 선국된 영상신호에서 KBPS 데이타를 검출하는 KBPS 검출부(32)와, 상기 KBPS 검출부(32)에서 검출된 KBPS 데이타가 제1튜너(21)에서 선국된 영상에 중첩될 수 있도록 스위칭부(29)에서 선택출력되는 동기신호에 동기시켜 색복조부(24)로 출력하는 프로세서(33)와, 상기 스위칭부(29)의 스위칭 동작을 제어하기위한 동기 제어신호를 출력하고 프로세서(33)의 동작을 제어하는 마이컴(26)으로 구성된것을 특징으로 하는 두개의 튜너가 내장된 텔레비젼에 사용가능한 케이비피에스(KBPS) 회로.In a television receiver having two tuners (21, 25), a first synchronizer for detecting a synchronization signal from a video signal tuned by the first tuner (21) and supplying it to one input terminal of the switching unit (29). A second synchronization detector 28 and a microcomputer 36 which detect a synchronization signal from the video signal tuned by the second tuner 25 and supply it to the other input terminal of the switching unit 29; The switching unit 29 selects and outputs one of the synchronization signals input from the first and second synchronization detectors 27 and 28 according to the synchronization control signal outputted from the second tuner 25. Selective output from the switching unit 29 so that the KBPS detection unit 32 for detecting the KBPS data in the video signal and the KBPS data detected by the KBPS detection unit 32 can be superimposed on the image selected by the first tuner 21. A processor 33 which outputs to the color demodulator 24 in synchronization with the synchronization signal to be generated; KBPS which can be used for a TV with two tuners, characterized in that it comprises a microcomputer 26 that outputs a synchronous control signal for controlling the switching operation of the switching unit 29 and controls the operation of the processor 33. KBPS) circuit. 제1항에 있어서, 상기 스위칭부(29)는 마이컴(36)에서 출력되는 동기 제어신호와 제2동기 검출부(28)에서 출력되는 동기신호를 논리곱 연산하여 그 결과를 출력하는 제1앤드게이트(30A)와, 상기 제1앤드게이트(30A)의 출력을 프로세서(33)로 공급하는 다이오드(D1)와, 상기 마이컴(36)에서 출력되는 동기 제어신호를 반전시키는 낫 게이트(31)와, 상기 낫 게이트(31)에서 반전 출력되는 동기 제어신호와 상기 제1동기 검출부(27)에서 출력되는 동기신호를 논리곱 연산하여 그 결과를 출력하는 제2앤드게이트(30B)와, 상기 제2앤드게이트(30B)의 출력을 프로세서(33)로 공급하는 다이오드(D2)로 구성된것을 특징으로 하는 두개의 튜너가 내장된 텔레비젼에 사용가능한 케이비피에스(KBPS) 회로.The first and gate of claim 1, wherein the switching unit 29 performs an AND operation on the synchronization control signal output from the microcomputer 36 and the synchronization signal output from the second synchronization detection unit 28, and outputs the result. 30A, a diode D1 for supplying the output of the first and gate 30A to the processor 33, a sickle gate 31 for inverting the synchronous control signal output from the microcomputer 36, A second AND gate 30B for performing an AND operation on the synchronous control signal inverted and output from the sick gate 31 and the synchronous signal output from the first synchronous detection unit 27, and outputting the result; A KBPS circuit usable for a television with two tuners, characterized by consisting of a diode (D2) for supplying the output of the gate (30B) to the processor (33). 제1항에 있어서, 상기 프로세서(33)는 상기 KBPS 검출부(32)에서 검출된 KBPS 데이타를 스위칭부(29)에서 선택출력되는 제2동기검출부(28)에의해 검출된 동기신호에 동기시켜 램(34)에 저장하고, 상기 램(34)에 저장된 KBPS 데이타를 상기 스위칭부(29)에 의해 선택출력되는 제1동기검출부(29)에의해 검출된 동기신호에 동기시켜 색복조부(24)로 출력하는 것을 특징으로 하는 두개의 튜너가 내장된 텔레비젼에 사용가능한 케이비피에스(KBPS) 회로.The RAM of claim 1, wherein the processor 33 synchronizes the KBPS data detected by the KBPS detector 32 with the synchronization signal detected by the second synchronous detector 28 selectively outputted by the switching unit 29. And the KBPS data stored in the RAM 34 to the color demodulator 24 in synchronization with the synchronization signal detected by the first synchronous detection unit 29 selectively outputted by the switching unit 29. A KBPS circuit, which can be used in a television with two tuners, characterized in that it outputs. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950015788A 1995-06-14 1995-06-14 KBPS circuitry for televisions with two tuners KR970004745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950015788A KR970004745A (en) 1995-06-14 1995-06-14 KBPS circuitry for televisions with two tuners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950015788A KR970004745A (en) 1995-06-14 1995-06-14 KBPS circuitry for televisions with two tuners

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KR970004745A true KR970004745A (en) 1997-01-29

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