CA1114498A - Video tape recorder - Google Patents
Video tape recorderInfo
- Publication number
- CA1114498A CA1114498A CA293,787A CA293787A CA1114498A CA 1114498 A CA1114498 A CA 1114498A CA 293787 A CA293787 A CA 293787A CA 1114498 A CA1114498 A CA 1114498A
- Authority
- CA
- Canada
- Prior art keywords
- servo
- speed
- motor
- magnetic head
- rotary magnetic
- 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
- G11B15/1808—Driving of both record carrier and head
Landscapes
- Television Signal Processing For Recording (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49777U JPS5647800Y2 (US08088918-20120103-C00476.png) | 1977-01-08 | 1977-01-08 | |
JP1977000499U JPS581866Y2 (ja) | 1977-01-08 | 1977-01-08 | 磁気テ−プ走行制御装置 |
JP497/77 | 1977-01-08 | ||
JP499/77 | 1977-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1114498A true CA1114498A (en) | 1981-12-15 |
Family
ID=26333489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA293,787A Expired CA1114498A (en) | 1977-01-08 | 1977-12-22 | Video tape recorder |
Country Status (8)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8440727B2 (en) | 2008-09-23 | 2013-05-14 | Thomas Gradek | Hydrocarbon extraction by oleophilic beads from aqueous mixtures |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129584A (en) * | 1981-02-04 | 1982-08-11 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device of video signal |
US4631605A (en) * | 1984-09-20 | 1986-12-23 | Ampex Corporation | Multiple speed scanner servo system for protecting the heads and tape of helical recorders |
US5313344A (en) * | 1988-04-28 | 1994-05-17 | Sanyo Electric Co., Ltd. | Stand-by mode setting/releasing device for video cassette recorder |
JPH06203436A (ja) * | 1992-12-28 | 1994-07-22 | Canon Inc | 磁気記録装置及び磁気再生装置 |
JP3397248B2 (ja) * | 1993-03-31 | 2003-04-14 | 富士写真フイルム株式会社 | カメラのパワーセーブ方法 |
KR0108670Y1 (en) * | 1993-12-04 | 1997-11-19 | Lg Semicon Co Ltd | Recording mode selection apparatus for vcr |
US5452277A (en) * | 1993-12-30 | 1995-09-19 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
JPH08235761A (ja) * | 1994-11-17 | 1996-09-13 | Integral Peripherals Inc | ディスク駆動装置における電力節減の方法 |
US5682273A (en) * | 1995-06-30 | 1997-10-28 | International Business Machines Corporation | Disk drive for portable computer with adaptive demand-driven power management |
US5954820A (en) * | 1997-09-26 | 1999-09-21 | International Business Machines Corporation | Portable computer with adaptive demand-driven power management |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1416045A (fr) * | 1964-11-13 | 1965-10-29 | Rank Bush Murphy Ltd | Montage pour reproduire des signaux de télévision enregistrés sur une bande magnétique |
DE1815889B2 (de) * | 1968-12-20 | 1971-08-15 | Grundig EMV Elektro Mechanische Versuchsanstalt Max Grundig, 8510 Furth | Schaltungsanordnung bei magnetischen aufzeichnungs bez wiedergabegeraeten mit rotierenden magnetkoepfen |
GB1301094A (en) * | 1969-03-21 | 1972-12-29 | Rca Corp | Servo system |
DE1963626B2 (de) * | 1969-12-19 | 1971-09-23 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Schaltungsanordnung zur regelung der drehzahl und phasenlage eines kopfrades in einem videobandgeraet |
JPS5229923Y2 (US08088918-20120103-C00476.png) * | 1972-07-27 | 1977-07-08 | ||
JPS524013Y2 (US08088918-20120103-C00476.png) * | 1972-09-29 | 1977-01-27 | ||
JPS5631662B2 (US08088918-20120103-C00476.png) * | 1974-07-17 | 1981-07-22 |
-
1977
- 1977-12-19 US US05/862,034 patent/US4161002A/en not_active Expired - Lifetime
- 1977-12-20 GB GB52978/77A patent/GB1557490A/en not_active Expired
- 1977-12-22 AU AU31931/77A patent/AU508779B2/en not_active Expired
- 1977-12-22 CA CA293,787A patent/CA1114498A/en not_active Expired
- 1977-12-30 FR FR7739901A patent/FR2377072A1/fr active Granted
-
1978
- 1978-01-05 AT AT0010178A patent/AT378299B/de not_active IP Right Cessation
- 1978-01-05 DE DE19782800499 patent/DE2800499A1/de active Granted
- 1978-01-09 NL NL7800259A patent/NL192898C/nl not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8440727B2 (en) | 2008-09-23 | 2013-05-14 | Thomas Gradek | Hydrocarbon extraction by oleophilic beads from aqueous mixtures |
Also Published As
Publication number | Publication date |
---|---|
US4161002A (en) | 1979-07-10 |
NL192898C (nl) | 1998-04-02 |
AT378299B (de) | 1985-07-10 |
DE2800499C2 (US08088918-20120103-C00476.png) | 1987-10-15 |
GB1557490A (en) | 1979-12-12 |
AU508779B2 (en) | 1980-04-03 |
AU3193177A (en) | 1979-06-28 |
FR2377072A1 (fr) | 1978-08-04 |
DE2800499A1 (de) | 1978-07-13 |
FR2377072B1 (US08088918-20120103-C00476.png) | 1985-03-22 |
NL192898B (nl) | 1997-12-01 |
NL7800259A (nl) | 1978-07-11 |
ATA10178A (de) | 1984-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |