KR940013211A - Automatic selection of broadcasting mode and shortening of tuning time for cable TV - Google Patents

Automatic selection of broadcasting mode and shortening of tuning time for cable TV Download PDF

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Publication number
KR940013211A
KR940013211A KR1019920022279A KR920022279A KR940013211A KR 940013211 A KR940013211 A KR 940013211A KR 1019920022279 A KR1019920022279 A KR 1019920022279A KR 920022279 A KR920022279 A KR 920022279A KR 940013211 A KR940013211 A KR 940013211A
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KR
South Korea
Prior art keywords
channel
mode
tuning
frequency
center frequency
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Application number
KR1019920022279A
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Korean (ko)
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KR0155711B1 (en
Inventor
이남혁
Original Assignee
윤종용
삼성전자 주식회사
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Priority to KR1019920022279A priority Critical patent/KR0155711B1/en
Publication of KR940013211A publication Critical patent/KR940013211A/en
Application granted granted Critical
Publication of KR0155711B1 publication Critical patent/KR0155711B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable

Abstract

이 발명은 케이블 텔레비젼 방송을 수신하는 수신기를 내장한 전기전자제품에 있어서, 미주지역에서 지역에 따라 CATV방송의 채널 주파수가 상이하므로 이를 자동으로 선택하고 선국시간을 단축시킬 수 있도록 한 케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법에 관한 것이다.The present invention is an electric and electronic product with a built-in receiver for receiving cable television broadcasting. Since the channel frequency of CATV broadcasting varies from region to region in the Americas, the broadcasting of cable television that can automatically select and shorten the tuning time. The present invention relates to a mode automatic selection method and a shortening of the tuning time.

이 발명은 사용자가 원하는 채널을 선국시 기억된 모드데로 직접 해당 주파수를 송출하여 AFT를 수행할 수 있도록 함으로써 오토 프로그램의 선국시간을 최소화 하며, 다이렉트(Direct)선국시 STD모드에서 HRC모드나 IRC모드로 가서 채널을 선국하지 않고 STD 모드에서도 직접 HRC모드나 IRC모드의 채널로 가므로 화면안정시간이 줄어들게 한 것이다.The present invention minimizes the tuning time of the auto program by transmitting the frequency directly to the mode memorized when tuning the desired channel to perform the AFT, and in the HRC mode or IRC mode in the STD mode during direct tuning. The screen stability time is reduced by going to HRC mode or IRC mode channel directly in STD mode without tuning the channel.

Description

케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법Automatic selection of broadcasting mode and shortening of tuning time for cable TV

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명에 따른 케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법을 수행하기 위한 플로우 챠트이다.1 is a flowchart for carrying out a method for automatically selecting a broadcast mode and reducing a time for tuning a cable television according to the present invention.

Claims (3)

오토 프로그램 수행을 위해 케이블 텔레비젼 모드를 선택하는 단계(S10)를 수행하고, 상기 단계(S10) 수행후, 오토 프로그램 키 입력시 최초채널의 픽춰 캐리어가 위치하는 곳의 중심주파수(fo) 데이타를 송출하는 단계(S20)를 수행하며, 상기 단계(S20)에서 송출된 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)데이타에 비데오신호의 동기신호가 있는지를 판단하여 이 판단결과에 따라 채널 메모리를 하는 단계(S30)를 수행하고, 상기 단계(S30)에서 메모리된 채널의 주파수와 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)를 비교하여 이 주파수 차에 따라 방송모드를 판단하는 단계(S40)를 수행하며, 상기 단계(S40)에서 STD모드로 판단되면 최초채널을 1증가 시킨 채널의 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)데이타를 송출하여 채널 메모리 플로우를 계속 수행하여 최종채널까지 반복하는 단계(S50)를 수행하고, 상기 단계(S50) 수행후, 제일 먼저 메모리된 채널을 선국하고 종료하는 단계(S60)를 수행하도록 이루어지는 케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법.Selecting the cable television mode to perform the auto program (S10), and after performing the step (S10), when the auto program key is input, the center frequency (fo) data of the location where the picture carrier of the first channel is located is transmitted. Performing a step (S20), and determining whether there is a synchronization signal of the video signal in the center frequency (fo) data of the location where the picture carrier transmitted in the step (S20) is located. Performing step S30, comparing the frequency of the channel memorized in the step S30 with the center frequency fo where the picture carrier is located and determining the broadcasting mode according to this frequency difference (S40). If it is determined in step S40 that the STD mode is set, the channel memory flow can be continued by transmitting the center frequency (fo) data where the picture carrier of the channel where the first channel is increased by one is located. Performing the step (S50) of repeating the final channel, and performing the step (S60) of tuning and terminating the memorized channel first after performing the step (S50). Shortening method. 제1항에 있어서, 상기 단계(S30)는 상기 단계(S20)에서 송출된 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)데이타에 비데오신호의 동기신호가 있는지를 판단하는 단계(S31)를 수행하고, 상기 단계(S31)에서 동기신호가 검출되지 않으면 AFT를 수행하는 단계(S32)를 수행하며, 상기 단계(32) 수행중 동기신호가 검출되는지를 판단하는 단계(S33)를 수행하고, 상기 단계(S31),(S33)에서 동기신호가 검출되면 이 동기신호가 검출된 채널을 메모리하는 단계(S43)를 수행하도록 이루어지는 케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법.The method of claim 1, wherein the step S30 is performed to determine whether there is a synchronization signal of the video signal in the center frequency fo where the picture carrier transmitted in the step S20 is located. If the synchronization signal is not detected in the step S31, performing the AFT step S32, and determining whether the synchronization signal is detected during the step 32 step S33. And if the synchronization signal is detected in steps S31 and S33, step S43 is performed to memorize the channel in which the synchronization signal is detected. 제1항에 있어서, 상기 단계(S40)는 상기 단계(S30)에서 메모리된 채널의 주파수와 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)를 비교하여 이 주파수 차에 따라 방송모드를 판단하여 STD 모드인지를 판단하는 단계(S41)를 수행하고, 상기 단계(S41)에서 STD 모드가 아니라 판단되면 최초채널을 1증가시킨 채널의 데이타를 픽춰 캐리어가 위치하는 곳의 중심주파수(fo)±해당 모드 주파수 데이타로 송출하는 단계(S42)를 수행하도록 이루어지는 케이블 텔레비젼의 방송모드 자동선택 및 선국시간 단축방법.The method of claim 1, wherein the step S40 compares the frequency of the channel memorized in the step S30 with the center frequency fo where the picture carrier is located to determine a broadcasting mode according to the frequency difference. In step S41, if it is determined that the mode is not the STD mode, the center frequency (fo) ± mode corresponding to the location of the picture carrier where the data of the first channel is increased is determined. A broadcasting mode automatic selection and tuning time shortening method for cable television, which performs the step of transmitting the frequency data (S42). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920022279A 1992-11-25 1992-11-25 Cable tv KR0155711B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920022279A KR0155711B1 (en) 1992-11-25 1992-11-25 Cable tv

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Application Number Priority Date Filing Date Title
KR1019920022279A KR0155711B1 (en) 1992-11-25 1992-11-25 Cable tv

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KR940013211A true KR940013211A (en) 1994-06-25
KR0155711B1 KR0155711B1 (en) 1998-11-16

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KR1019920022279A KR0155711B1 (en) 1992-11-25 1992-11-25 Cable tv

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100231024B1 (en) * 1996-11-22 1999-11-15 윤종용 Automatic channel memory method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100231024B1 (en) * 1996-11-22 1999-11-15 윤종용 Automatic channel memory method

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KR0155711B1 (en) 1998-11-16

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