ES8100518A1 - Automatic Azimuth Correction of Magnetic Head Gaps - Google Patents
Automatic Azimuth Correction of Magnetic Head GapsInfo
- Publication number
- ES8100518A1 ES8100518A1 ES480924A ES480924A ES8100518A1 ES 8100518 A1 ES8100518 A1 ES 8100518A1 ES 480924 A ES480924 A ES 480924A ES 480924 A ES480924 A ES 480924A ES 8100518 A1 ES8100518 A1 ES 8100518A1
- Authority
- ES
- Spain
- Prior art keywords
- magnetic head
- azimuth correction
- head gaps
- automatic azimuth
- signal
- 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
- 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
- G11B5/56—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 support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
A method of, and apparatus for, detecting an angular deviation of an audio reproducing head and producing a signal for correcting the head position if required. In order to avoid the need to provide one or more additional tracks containing identical signals for use in detecting head deviation the upper and lower halves of an information track are scanned simultaneously and the time difference between the zero passages of the signals is determined and is used to derive a signal for the compensation of the angular error.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7805803A NL7805803A (en) | 1978-05-29 | 1978-05-29 | AZIMUTH CORRECTION OF CUTS. |
NL7805801A NL7805801A (en) | 1978-05-29 | 1978-05-29 | MAGNET HEAD. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES480924A0 ES480924A0 (en) | 1980-11-01 |
ES8100518A1 true ES8100518A1 (en) | 1980-11-01 |
Family
ID=26645425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES480924A Expired ES8100518A1 (en) | 1978-05-29 | 1979-05-25 | Automatic Azimuth Correction of Magnetic Head Gaps |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT365355B (en) |
AU (1) | AU530671B2 (en) |
CH (1) | CH647613A5 (en) |
DE (1) | DE2920912C2 (en) |
ES (1) | ES8100518A1 (en) |
FR (1) | FR2427659B1 (en) |
GB (1) | GB2022874B (en) |
IT (1) | IT1118702B (en) |
NO (1) | NO151101C (en) |
NZ (1) | NZ190547A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4525696A (en) * | 1980-11-28 | 1985-06-25 | Minnesota Mining & Manufacturing Company | Driver for rotating a magnetic playback head |
NL8103833A (en) * | 1981-08-17 | 1983-03-16 | Philips Nv | DEVICE FOR DISPLAYING INFORMATION IN A TRACK OF A MAGNETIC RECORD CARRIER. |
US4577302A (en) * | 1983-03-14 | 1986-03-18 | Dolby Laboratories Licensing Corporation | Apparatus for reproducing motion picture film photographic sound-tracks to correct reproduction errors and reduce noise |
DE3521437A1 (en) * | 1983-11-29 | 1986-12-18 | Sharp K.K., Osaka | MULTI-TRACK MAGNETIC TAPE DEVICE AND METHOD FOR TRACKING ITS PLAYBACK HEADS |
DE3546829C2 (en) * | 1983-11-29 | 1992-11-19 | Sharp K.K., Osaka, Jp | Multi-track magnetic tape system with track alignment control |
CN100534399C (en) | 2004-12-31 | 2009-09-02 | 斯恩蒂斯有限公司 | Intramedullary nail |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2938962A (en) * | 1955-07-12 | 1960-05-31 | Konins | Azimuth seeking reproducing head |
US3246307A (en) * | 1962-05-22 | 1966-04-12 | Ibm | Servo positioning system for magnetic disk file |
NL154607B (en) * | 1966-03-09 | 1977-09-15 | Philips Nv | MAGNETIC HEAD SYSTEM EQUIPPED WITH TWO MAGNETIC CONTROL CIRCUITS FOR CORRECT POSITIONING ON A TRACK. |
US3526726A (en) * | 1967-09-27 | 1970-09-01 | Ampex | Piezoelectric transducer assembly for positioning a magnetic record/reproduce head |
US3678220A (en) * | 1971-05-26 | 1972-07-18 | Ibm | Angulated positioning marks for moving web |
US3900888A (en) * | 1972-10-03 | 1975-08-19 | Nakamichi Research | Process for detecting and adjusting a vertical orientation of magnetic heads and apparatus therefor |
NL7309590A (en) * | 1973-07-10 | 1975-01-14 | Philips Nv | DEVICE FOR CONTROLLING THE POSITION OF A MAGNETIC HEAD WITH REGARD TO AN INFORMATION TRACK TO BE TRACKED. |
GB1470735A (en) * | 1975-06-18 | 1977-04-21 | Ibm | Servo positioning systems for magnetic disc recording |
US4055849A (en) * | 1976-04-15 | 1977-10-25 | Eastman Kodak Company | Magnetic head positioning and playback apparatus utilizing a split head for self-tracking and selective reproduction |
-
1979
- 1979-05-23 DE DE2920912A patent/DE2920912C2/en not_active Expired
- 1979-05-25 NZ NZ190547A patent/NZ190547A/en unknown
- 1979-05-25 IT IT68132/79A patent/IT1118702B/en active
- 1979-05-25 ES ES480924A patent/ES8100518A1/en not_active Expired
- 1979-05-25 NO NO791725A patent/NO151101C/en unknown
- 1979-05-25 CH CH4906/79A patent/CH647613A5/en not_active IP Right Cessation
- 1979-05-25 GB GB7918351A patent/GB2022874B/en not_active Expired
- 1979-05-28 AU AU47487/79A patent/AU530671B2/en not_active Ceased
- 1979-05-29 AT AT0392579A patent/AT365355B/en not_active IP Right Cessation
- 1979-05-29 FR FR7913645A patent/FR2427659B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT365355B (en) | 1982-01-11 |
DE2920912A1 (en) | 1979-12-13 |
DE2920912C2 (en) | 1987-04-02 |
NO151101C (en) | 1985-02-06 |
IT7968132A0 (en) | 1979-05-25 |
ES480924A0 (en) | 1980-11-01 |
NO151101B (en) | 1984-10-29 |
IT1118702B (en) | 1986-03-03 |
CH647613A5 (en) | 1985-01-31 |
FR2427659B1 (en) | 1988-06-24 |
NZ190547A (en) | 1982-03-16 |
NO791725L (en) | 1979-11-30 |
ATA392579A (en) | 1981-05-15 |
GB2022874B (en) | 1983-04-27 |
AU4748779A (en) | 1979-12-06 |
GB2022874A (en) | 1979-12-19 |
FR2427659A1 (en) | 1979-12-28 |
AU530671B2 (en) | 1983-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES450069A1 (en) | Servo positioning system for data storage apparatus | |
KR890004752B1 (en) | Rotary head type pcm recording and reproducing method and system | |
GB1520350A (en) | Data storage apparatus | |
AU1848188A (en) | Method and apparatus for recording and/or reproducing digital data | |
GB1440302A (en) | Track following servo system | |
MY100768A (en) | Magnetic disc apparatus. | |
EP0397472A3 (en) | Rotary head recording and playback apparatus and method | |
ATE39777T1 (en) | ARRANGEMENT FOR RECORDING DIGITAL SIGNALS. | |
ES8405544A1 (en) | Method of recording a digital information signal on a record carrier, record carrier provided with such an information signal, and read/write apparatus for such a record carrier. | |
GB1516322A (en) | Video disc and method of playback | |
ES8100518A1 (en) | Automatic Azimuth Correction of Magnetic Head Gaps | |
KR880701512A (en) | System and method for improving image quality during video tape shuttle | |
GB2017352A (en) | Transducing head servo system | |
ES8309026A1 (en) | Method and apparatus for recording or reproducing stereophonic information in a magnetic record carrier | |
JPS5362509A (en) | Recording-reproducing method for rotary magnetic disk | |
DE3376037D1 (en) | Apparatus for reproducing a digital signal recorded with several heads | |
JPS5434214A (en) | Location controlling system of servo head in magnetic disc recorder | |
JPS578971A (en) | Electronic editing system of digital recorder | |
JPS5256906A (en) | Tracking control signal recording and reproduction system in magnetic recording and playback apparatus | |
JPS57150109A (en) | Rotary head type reproducer | |
ATE99075T1 (en) | METHOD AND APPARATUS FOR COPYING MAGNETIC TAPE. | |
JPS52100213A (en) | Track position detector for magnetic disc apparatus | |
JPS56153565A (en) | Pcm recorder and reproducer | |
JPS5712402A (en) | Traveling control system of tape recorder | |
JPS54111811A (en) | Signal recording-reproducing system |