KR920006089Y1 - 비디오 헤드를 이용한 헤드드럼 회전위상 검출장치 - Google Patents
비디오 헤드를 이용한 헤드드럼 회전위상 검출장치 Download PDFInfo
- Publication number
- KR920006089Y1 KR920006089Y1 KR2019880015938U KR880015938U KR920006089Y1 KR 920006089 Y1 KR920006089 Y1 KR 920006089Y1 KR 2019880015938 U KR2019880015938 U KR 2019880015938U KR 880015938 U KR880015938 U KR 880015938U KR 920006089 Y1 KR920006089 Y1 KR 920006089Y1
- Authority
- KR
- South Korea
- Prior art keywords
- head
- transistor
- video
- signal
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/46—Controlling, regulating, or indicating speed
- G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
- G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
-
- 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
- G11B15/60—Guiding record carrier
- G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
Claims (1)
- 상부드럼(1)에 설치된 제1, 제2 비디오 헤드(8), (9)와, 상기 제1, 제2 비디오 헤드(8), (9)의 회전방향에 대향되게 설치되어 그 제1, 제2 비디오 헤드(8), (9)에서 정극성의 펄스가 출력되게 하는 영구자석(10)과, 상기제1 비디오헤드(8)에 동일극성으로 접속된 로터리 트랜스(15) 및 상기 제2 비디오헤드(9)에 반대극성으로 접속된 로터리 트랜스(16)와, 상기 로터리 트랜스(15), (16)의 이차권선 일측단자(a1).(b1)에 출력되는 신호를 증폭하는 프리앰프(PA1), (PA2)와. 상기 프리앰프(PA1), (PA2)의 출력 신호를 각기 선택하여 위상검출신호 처리부(18) 및 재생 영상신호 처리부(17)에 인가하는 스위치(SW1), (SW2)와, 콘덴서(C1), (C2) 및 저항(R10), (R11)을 각기 통해 상기 로터리 트랜스(15), (16)의 이차권선타측단자(a2), (b2)에 녹화신호를 인가하는 레코드 앰프(RA1), (RA2)와, 녹화상태에서 상기 헤드스위칭신호의 전위에 따라 온/오프되는 트랜지스터(Q6)와,녹화상태에서 상기 트랜지스터(Q6)가 오프될때 온되어 상기 로터리 토랜스(15)의 이차권선 일측단자(a1)를 접지로 만드는 트랜지스터(Q1)와, 녹화상태에서 상기 트랜지스터(Q6)가 오프될때나 재생상태에서 온되어 상기 로터리 트랜스(16)의 이차권선 타측단자(b2)를 접지로 만드는 트랜지스터(Q4)와, 상기 헤드스위칭신호가 고전위 상태일때나 재생상태에서 온되어 상기 로터리 트랜스(15)의 이차권선 타측단자(a2)를 접지로 만드는 트랜지스터(Q2)와, 상기 헤드스위칭신호가 고전위 상태일때 온되어 상기 로터리 트랜스(16)의 이차권선 일측단자(b1)를 접지로 만드는 트랜지스터(Q3)와, 재생상태에서 온되어 상기 트랜지스터(Q3)를 오프상태로 유지시키는 트랜지스터(Q5)로 구성하여된 것을 특징으로 하는 비디오 헤드를 이용한 헤드드럼 회전위상 검출장치.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880015938U KR920006089Y1 (ko) | 1989-09-07 | 1989-09-07 | 비디오 헤드를 이용한 헤드드럼 회전위상 검출장치 |
| JP1989113610U JP2543130Y2 (ja) | 1988-09-29 | 1989-09-29 | ビデオヘッドを利用したヘッドドラム回転位相検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880015938U KR920006089Y1 (ko) | 1989-09-07 | 1989-09-07 | 비디오 헤드를 이용한 헤드드럼 회전위상 검출장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900007303U KR900007303U (ko) | 1990-04-04 |
| KR920006089Y1 true KR920006089Y1 (ko) | 1992-08-29 |
Family
ID=19279783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880015938U Expired KR920006089Y1 (ko) | 1988-09-29 | 1989-09-07 | 비디오 헤드를 이용한 헤드드럼 회전위상 검출장치 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2543130Y2 (ko) |
| KR (1) | KR920006089Y1 (ko) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5771506A (en) * | 1980-10-22 | 1982-05-04 | Hitachi Ltd | Magnetic video recorder and reproducer |
| JPS629555U (ko) * | 1985-07-03 | 1987-01-21 | ||
| JPS62205557A (ja) * | 1986-03-06 | 1987-09-10 | Mitsubishi Electric Corp | 磁気記録再生装置 |
-
1989
- 1989-09-07 KR KR2019880015938U patent/KR920006089Y1/ko not_active Expired
- 1989-09-29 JP JP1989113610U patent/JP2543130Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR900007303U (ko) | 1990-04-04 |
| JPH0289633U (ko) | 1990-07-16 |
| JP2543130Y2 (ja) | 1997-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19880929 |
|
| A201 | Request for examination | ||
| UA0201 | Request for examination |
Patent event date: 19890907 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19880929 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
|
| UG1501 | Laying open of application | ||
| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19920731 |
|
| E701 | Decision to grant or registration of patent right | ||
| UE0701 | Decision of registration |
Patent event date: 19921112 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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| REGI | Registration of establishment | ||
| UR0701 | Registration of establishment |
Patent event date: 19930114 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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| UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19930114 |
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| UR1001 | Payment of annual fee |
Payment date: 19941227 Start annual number: 4 End annual number: 4 |
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| UR1001 | Payment of annual fee |
Payment date: 19951226 Start annual number: 5 End annual number: 5 |
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| UR1001 | Payment of annual fee |
Payment date: 19961230 Start annual number: 6 End annual number: 6 |
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| UR1001 | Payment of annual fee |
Payment date: 19971229 Start annual number: 7 End annual number: 7 |
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| UR1001 | Payment of annual fee |
Payment date: 19981221 Start annual number: 8 End annual number: 8 |
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| UR1001 | Payment of annual fee |
Payment date: 20000728 Start annual number: 9 End annual number: 9 |
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| UR1001 | Payment of annual fee |
Payment date: 20010531 Start annual number: 10 End annual number: 10 |
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| UR1001 | Payment of annual fee |
Payment date: 20020726 Start annual number: 11 End annual number: 11 |
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| FPAY | Annual fee payment |
Payment date: 20030707 Year of fee payment: 12 |
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| UR1001 | Payment of annual fee |
Payment date: 20030707 Start annual number: 12 End annual number: 12 |
|
| EXPY | Expiration of term | ||
| UC1801 | Expiration of term |