KR860005333A - 헤드 절환 회로 - Google Patents
헤드 절환 회로Info
- Publication number
- KR860005333A KR860005333A KR1019850008093A KR850008093A KR860005333A KR 860005333 A KR860005333 A KR 860005333A KR 1019850008093 A KR1019850008093 A KR 1019850008093A KR 850008093 A KR850008093 A KR 850008093A KR 860005333 A KR860005333 A KR 860005333A
- Authority
- KR
- South Korea
- Prior art keywords
- switching circuit
- head switching
- head
- circuit
- switching
- Prior art date
Links
Classifications
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/03—Biasing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
-
- 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
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59263619A JPS61142507A (ja) | 1984-12-13 | 1984-12-13 | ヘツド切換回路 |
JP263619 | 1984-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860005333A true KR860005333A (ko) | 1986-07-21 |
KR900003597B1 KR900003597B1 (ko) | 1990-05-26 |
Family
ID=17392050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850008093A KR900003597B1 (ko) | 1984-12-13 | 1985-10-31 | 헤드 절환 회로 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4700242A (ko) |
JP (1) | JPS61142507A (ko) |
KR (1) | KR900003597B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5254895A (en) * | 1990-08-06 | 1993-10-19 | Canon Denshi Kabushiki Kaisha | Motor for disc drive |
US6111708A (en) * | 1996-12-11 | 2000-08-29 | Tecmar Technologies, Inc. | Apparatus and method for detecting read/write gap failure and switching to an alternative read/write gap |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3959817A (en) * | 1973-11-15 | 1976-05-25 | Victor Company Of Japan, Limited | Switching circuit for connecting a magnetic head in a magnetic recording and reproducing apparatus |
US4266254A (en) * | 1977-06-06 | 1981-05-05 | National Semiconductor Corp. | Integrated circuit for recording and playback of such recording |
JPS59163917A (ja) * | 1983-03-08 | 1984-09-17 | Toshiba Corp | スイツチング回路 |
-
1984
- 1984-12-13 JP JP59263619A patent/JPS61142507A/ja active Granted
-
1985
- 1985-10-31 KR KR1019850008093A patent/KR900003597B1/ko not_active IP Right Cessation
- 1985-12-02 US US06/803,350 patent/US4700242A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS61142507A (ja) | 1986-06-30 |
JPH048841B2 (ko) | 1992-02-18 |
US4700242A (en) | 1987-10-13 |
KR900003597B1 (ko) | 1990-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR880700444A (ko) | 회로 차단기 | |
ATA251385A (de) | Schutzschalter | |
BR8504835A (pt) | Disjuntor | |
IT1187480B (it) | Interruttore | |
FR2564260B1 (fr) | Circuit de preaccentuation | |
ES547815A0 (es) | Disyuntor hiper-rapido | |
FR2569304B1 (fr) | Interrupteur de circuit | |
KR850010625U (ko) | 냉각회로 | |
KR870004371U (ko) | 스위치 | |
DK485985A (da) | Omskifter | |
FR2561038B1 (fr) | Disjoncteur | |
KR870002933U (ko) | 회로 차단기 | |
KR870004367U (ko) | 스위치 | |
KR860015315U (ko) | 헤드 전환 신호 생성회로 | |
KR870001226U (ko) | 회로 차단기 | |
DK416787D0 (da) | Adaptivt omskifterkredsloeb | |
KR860005333A (ko) | 헤드 절환 회로 | |
DK308886D0 (da) | Omskiftningsanordning | |
ES285399Y (es) | Conmutador | |
KR860005307U (ko) | 스위치 | |
KR860004089U (ko) | 스위치 | |
DK189885D0 (da) | Elektronisk afbryder | |
KR860002072U (ko) | 일방향성 리미트스위치 회로 | |
KR870005998U (ko) | 비데오 스위칭 회로 | |
KR860006832U (ko) | 기능절환회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19950315 Year of fee payment: 6 |
|
LAPS | Lapse due to unpaid annual fee |