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KR940027520A - Video signal receiver with previous screen search - Google Patents

Video signal receiver with previous screen search Download PDF

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Publication number
KR940027520A
KR940027520A KR1019930008419A KR930008419A KR940027520A KR 940027520 A KR940027520 A KR 940027520A KR 1019930008419 A KR1019930008419 A KR 1019930008419A KR 930008419 A KR930008419 A KR 930008419A KR 940027520 A KR940027520 A KR 940027520A
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KR
South Korea
Prior art keywords
screen
memory
search
address generator
previous screen
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KR1019930008419A
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Korean (ko)
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KR0123756B1 (en
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김의규
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김광호
삼성전자 주식회사
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Priority to KR1019930008419A priority Critical patent/KR0123756B1/en
Publication of KR940027520A publication Critical patent/KR940027520A/en
Application granted granted Critical
Publication of KR0123756B1 publication Critical patent/KR0123756B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

본 발명은 별도의 메모리나 PIP 메모리에 화면정보를 저장하였다가, 이전화면의 정보를 탐색하고자 하는 경우 메모리에 저장된 화면정보를 독출하여 이전화면정보를 탐색할 수 있는 이전화면탐색기능을 갖는 영상 신호수신장치에 관한 것이다According to the present invention, when screen information is stored in a separate memory or PIP memory, and the screen information is to be searched, an image signal having a previous screen search function for searching the previous screen information by reading the screen information stored in the memory. It is about a receiver

Description

이전화면탐색기능을 갖는 영상신호수신기Video signal receiver with previous screen search

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

제1도는 본 발명의 일 실시예에 따른 블럭도이다. 제2도는 제1도에 도시된 메모리제어부(110)의 일부인 어드레스발생부의 상세블럭도이다. 제3A도 내지 제3E도는 화면탐색을 시작할 때의 파형도이다. 제4A도 내지 제4D도는 화면탐색시의 파형도이다. 제5도는 본 발명의 다른 실시예에 다른 블럭도이다.1 is a block diagram according to an embodiment of the present invention. 2 is a detailed block diagram of an address generator that is a part of the memory controller 110 shown in FIG. 3A to 3E are waveform diagrams when starting screen search. 4A to 4D are waveform diagrams during screen navigation. 5 is a block diagram according to another embodiment of the present invention.

Claims (7)

영상신호수신장치에 있어서, 화면단위로 복수의 메모리 영역이 구분된 메모리 ; 이전화면 탐색지령을 발생하기 위한 이전화면탐색키 ; 통상시에는 현재 튜닝중인 채널의 영상신호를 소정시간마다 상기 복수의 메모리 영역들에 기록하고, 상기 이전화면탬색키의 작동에 응답해서 상기 복수의 메모리 영역에 기억된 화면정보 중 가장 최근의 화면정보로부터 독출하는 메모리제어부 ; 및 상기 메모리 제어부에서 독출되는 화면정보를 현재 시청중인 화면상에 디스플레이되도록 출력하는 출력부를 구비한 것을 특징으로 하는 이전화면탐색기능을 가진 영상상신호수신장치.A video signal receiving apparatus comprising: a memory in which a plurality of memory areas are divided in units of screens; Previous screen search key to generate previous screen search command; Normally, the video signal of the channel currently being tuned is recorded in the plurality of memory areas every predetermined time, and the most recent screen information among the screen information stored in the plurality of memory areas in response to the operation of the previous screen search key. A memory control unit reading from the memory; And an output unit for outputting the screen information read by the memory controller to be displayed on a screen currently being watched. 제1항에 있어서, 상기 메모리제어부는 상기 화면정보를 저장하기 위한 어드레스를 발생시키는 어드레스 발생부를 포함함을 특징으로 하는 이전화면탐색기능을 갖는 영상영상수신장치.The apparatus of claim 1, wherein the memory controller comprises an address generator for generating an address for storing the screen information. 제2항에 있어서, 상기 어드레스발생부는, 수직동기신호(V-SYNC)를 클릭으로 사용하고, 원하는 소정번째의 필드수만큼을 카운트하는 카운터 ; 인에이블(enable)신호에 의해 소정번째 필드의 시작어드레스를 발생하는 필드어드레스발생기 ; 상기 필드어드레스발생기에서 출력되는 소정번째 필드의 시작어드레스에 따르는 화소를 저장 및 독출하기 위해 화소비트수만큼의 화소어드레스를 발생하는 화소어드레스발생부 ; 및 이전화면탐색모드가 아닌 경우 상기 마운터에서 원하는 소정번째의 필드가 되면 출력되는 리플 캐리(ripple carry)에 의해 상기 필드어드레스발생기를 인에이블(enable)시키고, 이전화면탐색모드인 경우 이전화면탐색모드신호(SEARCH)에 의해 상기 필드어드레스발생기를 인에이블시키는 신호를 출력하고, 화소데이타의 변화율(DATA RATE)에 의해 상기 화소어드레스발생기를 제어하는 신호를 출력하는 어드레스발생제어부를 포함함을 특징으로 하는 이전화면탐색기능을 갖는 영상수신장치.3. The apparatus as claimed in claim 2, wherein the address generator comprises: a counter which uses the vertical synchronization signal V-SYNC as a click and counts the desired number of predetermined first fields; A field address generator for generating a start address of a predetermined field by an enable signal; A pixel address generator for generating pixel addresses equal to the number of pixel bits to store and read pixels corresponding to a start address of a predetermined field output from the field address generator; And if it is not the previous screen search mode, enable the field address generator by a ripple carry outputted when the predetermined field is desired in the mounter, and in the previous screen search mode. And an address generation control unit for outputting a signal for enabling the field address generator by a signal SEARCH and for outputting a signal for controlling the pixel address generator according to a change rate of pixel data. Video receiver with previous screen search function. 제3항에 있어서, 상기 카운터를 카운트하는 수를 조정함으로써, 정지화상과 동화상을 구현할 수 있는 것을 특징으로 하는 이전화면탐색기능을 갖는 영상수신장치.4. The image receiving apparatus according to claim 3, wherein a still image and a moving image can be realized by adjusting the number of counting the counters. 제1항에 있어서, 상기 이전화면탐색키가 백(BACK)탐색과 포워드(FORWARD)탐색을 수행할 수 있음을 특징으로 하는 이전화면탐색기능을 갖는 영상수신장치.The apparatus of claim 1, wherein the previous screen search key performs a back search and a forward search. 복수개 채널의 화면정보를 입력하여 사용자가 주화면과 부화면을 선택하여 주화면이 자치하는 영역내의 소정구역에 부화면이 차지하도록 화면분할하여 디스프레이하는 PIP(Picture In Picture)기능을 갖는 영상신호수신장치에 있어서, 화면단위로 복수의 메모리 영역이 구분된 메모리 ; 다중채널시청을 위한 다중채널키와 이전화면탐색지령을 발생하기 위한 이전화면탐색키 ; 통상시에는 현재 튜닝중인 채널의 영상신호를 소정시간마다 상기 복수의 메모리 영역들에 기록하고, 상기 다중채널키의 작동에 응답해서 다중채널의 영상신호를 소정시간마다 상기 복수의 메모리 영역들에 기록하고, 상기 이전화면탐색키의 작동에 응답해서 상기복수의 메모리 영역에 기억된 화면정보중 가장 최근의 화면정보로부터 독출하는 메모리제어부 ; 및 상기메모리제어부에서 독출되는 화면정보를 현재 시청중인 화면상에 화면분할방식으로 디스플레이 되도록 출력하는 출력부를 구비한 것을 특징으로 하는 이전화면탐색기능을 가진 영상신호수신장치.Video signal reception with PIP (Picture In Picture) function that inputs screen information of multiple channels and the user selects the main screen and sub-screen to split the screen so that the sub-screen occupies a predetermined area in the area where the main screen is autonomous An apparatus comprising: a memory in which a plurality of memory areas are divided in units of screens; Multi-channel key for multi-channel viewing and previous screen search key for generating previous screen search command; Normally, the video signal of the channel currently being tuned is recorded in the plurality of memory areas every predetermined time, and the multi-channel video signal is recorded in the plurality of memory areas every predetermined time in response to the operation of the multi-channel key. A memory controller which reads from the latest screen information among screen information stored in the plurality of memory areas in response to the operation of the previous screen search key; And an output unit for outputting the screen information read from the memory controller to be displayed on a screen currently being viewed in a screen division method. 제6항에 있어서, 상기 출력부가 다중채널키에 따라 화면분할에 의한 화면과 주화면의 디스플레이가 선택되는 선택부를 포함함을 특징으로 하는 이전화면색기능을 가진 영상신호수신장치.The apparatus of claim 6, wherein the output unit comprises a selection unit for selecting a screen and a main screen display by splitting the screen according to the multi-channel key. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019930008419A 1993-05-17 1993-05-17 Apparatus of image signal receiving having before picture search function KR0123756B1 (en)

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KR940027520A true KR940027520A (en) 1994-12-10
KR0123756B1 KR0123756B1 (en) 1997-11-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980071253A (en) * 1997-02-12 1998-10-26 이데이 노부유키 Recording playback apparatus and method
KR100460966B1 (en) * 2002-05-27 2004-12-09 삼성전자주식회사 Instant replay apparatus and method thereof
KR100761010B1 (en) * 2007-04-05 2007-09-21 김재홍 Screen information processing method and system using direct video memory access
KR100848495B1 (en) * 2006-12-04 2008-07-28 주식회사 알티캐스트 Video navigation system and method thereof.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980071253A (en) * 1997-02-12 1998-10-26 이데이 노부유키 Recording playback apparatus and method
KR100460966B1 (en) * 2002-05-27 2004-12-09 삼성전자주식회사 Instant replay apparatus and method thereof
KR100848495B1 (en) * 2006-12-04 2008-07-28 주식회사 알티캐스트 Video navigation system and method thereof.
KR100761010B1 (en) * 2007-04-05 2007-09-21 김재홍 Screen information processing method and system using direct video memory access

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KR0123756B1 (en) 1997-11-26

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