KR930004522Y1 - Mode switching circuit of vcr - Google Patents
Mode switching circuit of vcr Download PDFInfo
- Publication number
- KR930004522Y1 KR930004522Y1 KR2019880012309U KR880012309U KR930004522Y1 KR 930004522 Y1 KR930004522 Y1 KR 930004522Y1 KR 2019880012309 U KR2019880012309 U KR 2019880012309U KR 880012309 U KR880012309 U KR 880012309U KR 930004522 Y1 KR930004522 Y1 KR 930004522Y1
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- South Korea
- Prior art keywords
- mode
- video
- switch
- transistor
- mode switching
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/10—Manually-operated control; Solenoid-operated control
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 예약녹화 회로도.1 is a reserved recording circuit diagram of the present invention.
제2도는 제1의 타이머 마이콤의 예약녹화 제어 회로도.2 is a reserved recording control circuit diagram of the first timer microcomputer.
* 도면의 주요부분에 대한 부호의 설명 * Explanation of symbols for main parts of the drawings
1 : 타이머 마이콤1: timer microcomputer
2 : VPS(Video Programming System)신호검출부2: VPS (Video Programming System) signal detector
3 : 튜너중간 주파부 4 : Video/TV 모드 선택스위치3: Tuner middle frequency part 4: Video / TV mode selection switch
B+: 전원단자 MP : 모드절환 제어 포트B + : Power terminal MP: Mode switching control port
SW1: 예약녹화스위치 Q1,Q2: 트랜지스터SW 1 : Reserved recording switch Q 1 , Q 2 : Transistor
본 고안은 브이 씨 알의 예약녹화에 관한 것으로, 특히 Video/TV 모드 선택스위치가 Video 모드(Mode)에 있다할지라도 브이 씨 알의 예약녹화 기능이 정상적으로 수행되도록 브이 씨 알의 모드 절환회로에 관한 것이다.The present invention relates to the reservation recording of V seed, and more particularly, to the mode switching circuit of the V seed so that the reservation function of the V seed is normally performed even if the Video / TV mode selection switch is in the Video mode. will be.
기존의 브이 씨 알에서, 그것에 예약녹화를 설정해 놓았을 때, Video/TV 모드 선택스위치가 Video 모드로 위치하면 VPS 신호검출부가 영상신호에서 VISS(Video Index Search System/VASS(Video Address Search System)용 제어신호를 검출해도 브이 씨 알의 예약녹화 기능을 수행할 수 없는 결점이 있었다.In the existing V seed, when the reserved recording is set to it, if the Video / TV mode selection switch is placed in the video mode, the VPS signal detection unit is used for the Video Index Search System / VASS (Video Address Search System) in the video signal. Even if the control signal was detected, there was a drawback that the reserved recording function of the V seed was not able to be performed.
본 고안은 이러한 종래의 결점을 해결하기 위하여, 브이 씨 알에 예약녹화가 설정되면, Video/TV 모드 선택스위치가 어떤 모드선택 위치에 있든, 브이 씨 알이 TV모드로만 되어 사용자가 녹화하려면 방송프로그램이 반드시 녹화되도록 안출한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.In order to solve the above-mentioned drawbacks, the present invention, if reserved recording is set in the V seed, whatever mode selection position the Video / TV mode selection switch is in, the V seed is only in the TV mode so that the user can record a broadcast program. This is necessarily designed to be recorded, described in detail by the accompanying drawings as follows.
제1도는 본 고안의 예약녹화 회로도로서 이에 도시한 바와 같이, 타이머 마이콤(1)의 제어를 받는 튜너중간 주파부(3)의 영상신호가 VPS 신호검출부(2)에 인가되도록 하여 그 VPS 신호검출부(2)를 상기 타이머 마이콤(1)에 연결하고, 상기 타이머 마이콤(1)의 출력키이 및 입력키이에 예약녹화스위치(SW1) 및 Video/TV 모드 선택스위치(4)를 접속해 구성한 종래의 예약녹화 회로에 있어서, 상기 예약녹화스위치(SW1)의 단락 및 개방에 의해 각각 고전위 및 저전위를 출력하게한 모드절환 제어포트(MP)를 상기 타이머 마이콤(1)에 추가하여 그 모드절환 제어포트(MP)를 트랜지스터(Q2)의 베이스측에 접속하며, 그의 콜렉터를 저항(r2)을 통해 트랜지스터(Q1)의 베이스에 접속하고, Video/TV 모드 선택스위치(4)의 일측 TV 모드단자(a'2) 및 전원단자(B+)를 상기 트랜지스터(Q1)의 에미터측에 공통 접속함과 아울러, 그의 콜렉터 및 Video/TV 모드 선택스위치(4)의 일측 공통단자(b2)를 다이오드(D4)(D3)를 각각 통해 공통 접속하여 구성한 것으로, 그 접속점의 출력이 고전위이면 브이 씨 알은 TV 모드로 동작하게 되어 있고, 미설명 부호 KO는 출력키이, KI는 입력키이, TC는 튜닝 제어단자이다.1 is a reserved recording circuit diagram of the present invention, as shown therein, such that the video signal of the tuner intermediate frequency unit 3 under the control of the timer microcomputer 1 is applied to the VPS signal detector 2 so that the VPS signal detector (2) to the timer micom (1), and connected to the output key and the input key of the timer micom (1) by connecting the reservation recording switch (SW 1 ) and the video / TV mode selection switch (4) In the reservation recording circuit, a mode switching control port (MP) for outputting a high potential and a low potential by the short-circuit and opening of the reservation recording switch SW 1 is added to the timer micom 1, and the mode switching is performed. The control port MP is connected to the base side of the transistor Q 2 , and its collector is connected to the base of the transistor Q 1 via a resistor r2, and the TV on one side of the Video / TV mode selection switch 4 is connected. A mode terminal (a ' 2 ) and a power supply terminal (B + ) is connected to the transistor Q 1 ) the common connection to the emitter side, and the common terminal (b 2 ) of one side of the collector and the video / TV mode selector switch (4) are commonly connected via diodes (D 4 ) (D 3 ). If the output of the connection point is a high potential, V seed is operated in the TV mode. Unexplained symbol KO is an output key, KI is an input key, and TC is a tuning control terminal.
이와 같이 구성된 본 고안의 적용 및 효과를 타이머 마이콤(1)의 예약녹화 제어흐름도인 제2도를 참조하여 상세히 설명하면 다음과 같다.The application and effect of the present invention configured as described above will be described in detail with reference to FIG.
예약녹화를 위해 예약녹화스위치(SW1)를 단락시키면, 그 상태를 타이머 마이콤(1)에서 감지하여 그의 모드절환 제어포트(MP)에 고전위가 출력되고 이 고전위에 의해 트랜지스터(Q2)는 온되며 이에 의해 트랜지스터(Q1)도 온되어 상기 다이오드(D3, D4)의 접속점에서 고전위가 출력되므로, Video/TV 모드 선택스위치(4)의 모드 선택위치에 관계없이 브이 씨 알은 TV 모드로 된다. 따라서 이때 VPS 신호검출부(2)가 튜너중간 주파부(3)에서 출력되는 영상신호로부터, 녹화하려는 방송프로그램의 처음을 알리는 VISS/VASS용 제어신호를 검출하면 브이 씨 알이 예약녹화를 하게 되고, 녹화하려는 방송프로그램의 끝을 알리는 VISS/VASS용 제어신호를 검출하면 예약녹화는 완료된다.Shorting the reservation-recording switch (SW 1) for the timer recording, the state of the timer to detect in the microcomputer (1) is a high potential is output to its mode switch control port (MP) is a transistor (Q 2) by over classic Since the transistor Q 1 is also turned on, and the high potential is output from the connection point of the diodes D 3 and D 4 , the V seed is independent of the mode selection position of the video / TV mode selection switch 4. The TV mode is entered. Therefore, when the VPS signal detection unit 2 detects a control signal for VISS / VASS notifying the beginning of the broadcast program to be recorded from the video signal output from the tuner middle frequency unit 3, the V seed is reserved for recording. Reservation recording is completed when the control signal for VISS / VASS is signaled to indicate the end of the broadcast program to be recorded.
또한 브이 씨 알에 예약녹화를 설정해놓지 않으면 타이머 마이콤(1)의 모드절환 제어포트(MP)에서 저전위가 출력되어 트랜지스터(Q2)는 오프되며 그에 의해 트랜지스터(Q1)가 오프되므로 Video/TV 모드 선택스위치(4)의 모드 선택위치에 따라 브이 씨 알의 모드가 결정된다.Also, if the reserved recording is not set in the V seed, the low potential is output from the mode switching control port MP of the timer microcomputer 1, and the transistor Q 2 is turned off, thereby turning off the transistor Q 1 . The mode of V-seed is determined according to the mode selection position of the TV mode selection switch 4.
이상의 상세한 설명처럼, 본 고안은 브이 씨 알에 예약녹화가 설정되기만 하면 Video/TV 모드 선택스위치의 모드 선택위치에 관계없이 그 브이 씨 알은 TV 모드로 동작하기 때문에 녹화하고자 하는 방송프로그램이 반드시 녹화되도록 하는 효과가 있다.As described above, the present invention is that if the scheduled recording is set in the V seed, regardless of the mode selection position of the Video / TV mode selection switch, the V seed operates in the TV mode. It is effective to make.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880012309U KR930004522Y1 (en) | 1988-07-28 | 1988-07-28 | Mode switching circuit of vcr |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880012309U KR930004522Y1 (en) | 1988-07-28 | 1988-07-28 | Mode switching circuit of vcr |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900003658U KR900003658U (en) | 1990-02-08 |
| KR930004522Y1 true KR930004522Y1 (en) | 1993-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880012309U KR930004522Y1 (en) | 1988-07-28 | 1988-07-28 | Mode switching circuit of vcr |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930004522Y1 (en) |
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1988
- 1988-07-28 KR KR2019880012309U patent/KR930004522Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR900003658U (en) | 1990-02-08 |
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