GB899918A - Running speed control systems for magnetic tapes - Google Patents
Running speed control systems for magnetic tapesInfo
- Publication number
- GB899918A GB899918A GB3981060A GB3981060A GB899918A GB 899918 A GB899918 A GB 899918A GB 3981060 A GB3981060 A GB 3981060A GB 3981060 A GB3981060 A GB 3981060A GB 899918 A GB899918 A GB 899918A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- tape
- head
- signals
- recording
- 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
- G11B15/52—Controlling, regulating, or indicating speed by using signals recorded on, or derived from, record carrier
-
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
899,918. Automatic speed control systems TOKYO SHIBAURA ELECTRIC CO. Ltd. Nov. 18, 1960 [Nov. 18, 1959], No. 39810/60. Drawings to Specification. Class 38 (4). Magnetic tape recording and reproducing apparatus for television signals comprises a tape having slanted parallel tracks recorded thereon by the video signals, and a magnetic head, other than the head for reproducing the video signals, travels across these tracks to provide signals for controlling the speed of the electric motor driving the tape. The head for controlling the speed is arranged so that its magnetic gap extends across each track, so producing a series of intermittent signals the repetition rate of which is dependent upon the speed of the tape. Thus, the speed of the tape is automatically controlled during reproduction so that the head for reproducing the video signals is brought into the proper positions with respect of the tracks. The speed-detecting head is made resonant at a predetermined low frequency which is determined by the ratio between the relative speed of the recording head with respect to the tape during recording and the desired speed of the tape during reproduction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3981060A GB899918A (en) | 1960-11-18 | 1960-11-18 | Running speed control systems for magnetic tapes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3981060A GB899918A (en) | 1960-11-18 | 1960-11-18 | Running speed control systems for magnetic tapes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB899918A true GB899918A (en) | 1962-06-27 |
Family
ID=31971962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3981060A Expired GB899918A (en) | 1960-11-18 | 1960-11-18 | Running speed control systems for magnetic tapes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB899918A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2502878A1 (en) * | 1981-03-25 | 1982-10-01 | Sony Corp | APPARATUS FOR RECORDING AND REPRODUCING AN INFORMATION SIGNAL, IN PARTICULAR FOR CONTROLLING THE SCANNING SPEED OF A MAGNETIC STRIP |
US6608888B2 (en) * | 1999-02-26 | 2003-08-19 | Bellsouth Intellectual Property Corporation | Methods and systems to provide a message in a messaging system without revealing an identity of the sending party |
-
1960
- 1960-11-18 GB GB3981060A patent/GB899918A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2502878A1 (en) * | 1981-03-25 | 1982-10-01 | Sony Corp | APPARATUS FOR RECORDING AND REPRODUCING AN INFORMATION SIGNAL, IN PARTICULAR FOR CONTROLLING THE SCANNING SPEED OF A MAGNETIC STRIP |
US6608888B2 (en) * | 1999-02-26 | 2003-08-19 | Bellsouth Intellectual Property Corporation | Methods and systems to provide a message in a messaging system without revealing an identity of the sending party |
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