KR910005624Y1 - Still screen regulating circuit for vtr - Google Patents
Still screen regulating circuit for vtr Download PDFInfo
- Publication number
- KR910005624Y1 KR910005624Y1 KR2019870024102U KR870024102U KR910005624Y1 KR 910005624 Y1 KR910005624 Y1 KR 910005624Y1 KR 2019870024102 U KR2019870024102 U KR 2019870024102U KR 870024102 U KR870024102 U KR 870024102U KR 910005624 Y1 KR910005624 Y1 KR 910005624Y1
- Authority
- KR
- South Korea
- Prior art keywords
- transistor
- diode
- still
- collector
- capstan motor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
-
- 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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/1808—Driving of both record carrier and head
- G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
Abstract
내용 없음.No content.
Description
제 1 도는 본 고안에 따른 회로도.1 is a circuit diagram according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 마이콤의 시스템 콘트롤러 2 : 풀업부1: MICOM system controller 2: Pull up unit
3 : 캡스턴 모터구동부 4 : 트래킹 모노 멀티 바이브레이터3: capstan motor drive unit 4: tracking mono multivibrator
5 : 캡스턴 모터제어부 Q1~Q5: 트랜지스터5: Capstan motor control unit Q 1 ~ Q 5 : Transistor
R1~R5: 저항 VR1,VR2: 가변저항R 1 to R 5 : resistance VR 1 , VR 2 : variable resistance
D1~D4: 다이오우드 C1: 콘덴서D 1 to D 4 : diode C 1 : condenser
본 고안은 정지화면 조절회로에 관한 것으로 특히 소프트웨어적인 정지 화면 혹은 느린 속도의 재생화면을 정상재생시 트래킹 조절하는데 적당하도록한 VCR의 정지화면 조절회로에 관한 것이다.The present invention relates to a still picture control circuit, and more particularly, to a still picture control circuit of a VCR that is suitable for tracking control of a software still picture or a slow playback picture during normal playback.
종래의 VCR에 있어서 정지화면의 재생시 화면에 노이즈가 발생하면 다시 정상재생동작을 시행하여 정지시키는 동작을 반복해야하는 불편이 있었는데, 이를 반복동작시킨다 하더라도 노이즈가 없는 부위에는 정지시킬수 없는 문제점이 있었으며, 또한 대부분의 소프트웨어적인 제어방식은 테이프 진행량을 제어하는 제어전압에 따라 이테이프진행량이 모터의 특성과 테이프의 텐션(Tension)에 따라 차이가 나므로 정확한 제어가 불가능하였다. 이에 본 고안은 상기한 문제점을 개선시키기 위해 안출된 것으로써, 정지화면 조절을 위해 외부 정상재생조절용 트래킹노브를 사용한 스위칭 장치와, 장상재생조절용 트래킹노브에 의한 정지화면 조절을 위한 캡스탄 제어신호 조절장치를 사용하여 정지화면 혹은 느린속도의 재생화면을 트래킹 조절하도록 한 것으로, 이하 그의 기술구성을 첨부된 도면에 따라 설명하면 다음과 같다.In the conventional VCR, when noise occurs on the screen during the playback of the still picture, it is inconvenient to repeat the normal playback operation and stop the operation again. Even if the operation is repeated, there is a problem in that the noise-free part cannot be stopped. In addition, most of the software control method could not control precisely because the e-tape progression differs according to the motor characteristics and the tension of the tape according to the control voltage controlling the tape progression amount. Accordingly, the present invention has been made to improve the above problems, the switching device using an external normal playback regulating tracking knob for adjusting the still picture, and the capstan control signal adjustment for the still image adjustment by the tracking knob for controlling the long picture The tracking device adjusts a still picture or a slow playback picture using a device. Hereinafter, the technical configuration thereof will be described with reference to the accompanying drawings.
제 1 도는 본 고안에 따른 VCR의 정지화면조절회로를 나타낸 것으로 그의 연결구성을 살펴보면, 마이콤의 시스템 콘트롤러(1)의 F/P(Fine Picture) 펄스신호는 트랜지스터(Q1,Q2)와 저항(R1~R5)으로 구성된 풀업(Pull up)부(2)에 인가되고, 상기 트랜지스터(Q2)의 콜렉터에 연결된 저항(R4,R5)의 연결점은 가변저항(VR1)을 거쳐 에미터가 접지된 트랜지스터(Q3)의 콜렉터에 접속되며 동시에 다이오우드(D4)를 거쳐 캡스턴 모터구동부(3)에 접속되고, 한편 시스템 콘트롤러(1)의 스틸단(Still)은 트랜지스터(Q3)의 베이스에 접속되며 동시에 트랜지스터(Q5,Q4)에 연결되어 트랜지스터(Q4)의 에미터가 저항(R4,R5)의 연결점이 접속되고, 트랜지스터(Q3)의 콜렉터는 다이오우드(D1,D2)와 가변저항(VR2) 및 콘덴서(C1)에 의해 트래킹 모노 멀티바이브레이터(4)에 접속되고 그의 출력단은 캡스턴 모터제어회로(5)와 다이오우드(D3)를 순차거쳐 다이오우드(D4)의 캐소우드와 연결되어 캡스턴 모터 구동부(3)에 접속되는 구성으로, 상기 회로구성의 동작상태 및 작용효과를 첨부된 도면에 따라 설명하면 다음과 같다.1 shows a still picture control circuit of a VCR according to the present invention. Looking at its connection configuration, the F / P (Fine Picture) pulse signal of the system controller 1 of the microcomputer is a transistor (Q 1 , Q 2 ) and a resistor. A connection point of the resistors R 4 and R 5 , which is applied to the pull-up unit 2 composed of (R 1 to R 5 ) and connected to the collector of the transistor Q 2 , provides a variable resistor VR 1 . The emitter is connected to the collector of the grounded transistor Q 3 and at the same time to the capstan motor driver 3 via the diode D 4 , while the steel stage of the system controller 1 is connected to the transistor Q 3. 3 ) is connected to the base of the transistor and is simultaneously connected to the transistors Q 5 and Q 4 so that the emitter of the transistor Q 4 is connected to the connection point of the resistors R 4 and R 5 , and the collector of the transistor Q 3 is the tracking mono-multi vibrator 4 by the diode (D 1, D 2) and a variable resistor (VR 2) and the capacitor (C 1) Genus and its output stage capstan motor control circuit 5 and the diode (D 3) for sequentially through diode (D 4) of the cathode is connected to the wood as a configuration to be connected to the capstan motor drive unit 3, the operation of the circuit arrangement state And when described in accordance with the accompanying drawings the effect is as follows.
제 1 도에서 마이콤의 시스템 콘트롤러(1)에서 사용자의 키이선택에 따라 F/P 펄스신호와 스틸단(still)에서 고전위가 각각 출력되게되는데 먼저 스틸시에는, 즉 정지화면시에는 스틸단(still)으로 하이(H)신호가 출력되어 트랜지스터(Q3)를 구동시킴으로 가변저항(VR1)의 트래킹 조절볼륨의 한단자를 접지시켜 다이오우드(D1)쪽으로 전달되는 출력신호를 차단하며, 스틸시에 발생되는 F/P 펄스신호는 풀업부(2)의 트랜지스터(Q1)의 베이스에 인가되고 그의 콜렉터로 로우신호를 시켜 트랜지스터(Q2)의 베이스로 인가되므로 트랜지스터(Q2)를 오프시켜 트랜지스터(Q2)의 콜렉터로 하이(H)신호를 출력시키게된다.In FIG. 1, the system controller 1 of the microcomputer outputs a high potential from the F / P pulse signal and the still stage, respectively, according to the user's key selection. High (H) signal is output to drive transistor (Q 3 ) to ground one terminal of the tracking control volume of the variable resistor (VR 1 ) to cut off the output signal transmitted to the diode (D 1 ), and when still Is applied to the base of transistor Q 1 of pull-up section 2, and is applied to the base of transistor Q 2 by causing a low signal to its collector, thereby turning off transistor Q 2 . The high signal is output to the collector of the transistor Q 2 .
이 출력된 하이(H)신호는 저항(R5)을 거쳐 가변저항(VR1)과 저항(R4)의 병렬저항값에 따라 분압비가 결정되는데, 이 가변저항(VR1)의 조절에 따라 저항(R4)과 가변저항(VR1)의 병렬저항값이 변화하므로 또다른 레벨로 조절이 가능해진다.The output high (H) signal is via a resistor (R 5) determining the partial pressure ratio in accordance with the parallel resistance of the variable resistor (VR 1) and a resistance (R 4), depending on the adjustment of the variable resistor (VR 1) Since the parallel resistance value of the resistor R 4 and the variable resistor VR 1 changes, it is possible to adjust to another level.
여기서 스틸시가 아니면, 즉 정지화면시가 아니면 마이콤의 시스템 콘트롤러(1)의 스틸단(still)으로 로우(L)신호를 출력시켜 트랜지스터(Q3,Q5)를 오프시키므로 트랜지스터(Q4)와 저항(R5), 가변저항(VR1), 다이오우드(D1), 가변저항(R2) 및, 콘덴서(C1)에 의해 트래킹 모노멀티 바이브레이터(4)에서 정상적인 트래킹 모노멀티 발생을 이루어 캡스턴 모터 구동회로(5)에서 정상재생모드의 캡스턴제어를 수행하게된다. 또한 저항(R6)과 다이오우드(D2)를 통한 입력은 기준신호발생을 위한 다이오우드(D1)의 출력이 차단되더라도 일정레벨을 트래킹 모노 멀티 바이브레이터(4)에 인가되도록한다.Wherein unless upon steel, that is not a when the still image to outputs a low (L) signal as a steel end (still) of the system controller 1 of the microcomputer transistors (Q 3, Q 5) because the off-transistor (Q 4) The tracking monomultiplier 4 is generated in the tracking monomultivibrator 4 by the resistance R 5 , the variable resistor VR 1 , the diode D 1 , the variable resistor R 2 , and the capacitor C 1 . The capstan motor driving circuit 5 performs capstan control in the normal regeneration mode. In addition, the input through the resistor R 6 and the diode D 2 allows a constant level to be applied to the tracking mono multivibrator 4 even when the output of the diode D 1 for generating the reference signal is cut off.
따라서 본 고안에 따른 VCR의 정지화면 조절회로는 이상의 설명에서와 같이, 정지화면 혹은 느린속도의 재생화면을 정상재생시 트래킹 조절하도록 하므로써 선명한 화면을 시청할 수 있도록 하는 효과를 갖게 된다.Therefore, the still picture control circuit of the VCR according to the present invention has the effect of allowing a clear picture to be viewed by adjusting the tracking during the normal playback of the still picture or the slow playback picture as described above.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870024102U KR910005624Y1 (en) | 1987-12-31 | 1987-12-31 | Still screen regulating circuit for vtr |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870024102U KR910005624Y1 (en) | 1987-12-31 | 1987-12-31 | Still screen regulating circuit for vtr |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890014405U KR890014405U (en) | 1989-08-10 |
| KR910005624Y1 true KR910005624Y1 (en) | 1991-07-27 |
Family
ID=19271147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870024102U KR910005624Y1 (en) | 1987-12-31 | 1987-12-31 | Still screen regulating circuit for vtr |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR910005624Y1 (en) |
-
1987
- 1987-12-31 KR KR2019870024102U patent/KR910005624Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890014405U (en) | 1989-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910005624Y1 (en) | Still screen regulating circuit for vtr | |
| US4605901A (en) | Frequency-voltage converter | |
| KR890006232Y1 (en) | Mute selection circuit at time of preserved record | |
| JPH0191689A (en) | Motor driving power supply device | |
| KR910001826Y1 (en) | Tracking control circuit of picture signal recording and play back device | |
| KR910002718Y1 (en) | Mike recording control device | |
| KR910002228A (en) | Resolution up / down method and circuit by remote control | |
| KR910001646Y1 (en) | Highest volume output circuit | |
| JPS6188777A (en) | Speed control system for motor | |
| JP3283284B2 (en) | Automatic playback volume correction circuit | |
| KR900001540Y1 (en) | Control circuit of head drum speed | |
| KR900008446Y1 (en) | Control circuit for capstan motor | |
| KR900001501Y1 (en) | Stop mode control circuit of video tape recorder | |
| KR970004408Y1 (en) | Volume regulation device with illuminative adaption type | |
| KR870002322Y1 (en) | Tracking control display circuit of vtr | |
| KR930007375Y1 (en) | Frequency converting circuit for fm carrier | |
| KR950005702Y1 (en) | Apparatus which regulate tone for vcr | |
| JPS6321698A (en) | Buzzer sound volume adjustor | |
| KR950003855Y1 (en) | Suspension picture control circuit | |
| KR930008656Y1 (en) | Steady circuit of capstan motor driving at high speed search | |
| KR910004668Y1 (en) | Mic dubbing control device for duble cassette recorder | |
| KR910007203Y1 (en) | Sound level control circuit | |
| KR910008992Y1 (en) | Tracking regulating circuit for vtr | |
| KR950000449Y1 (en) | Multi-frame process system for vcr | |
| KR890003588Y1 (en) | Timer mode changing circuit of vtr |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19951226 Year of fee payment: 6 |
|
| LAPS | Lapse due to unpaid annual fee |