HK14596A - Method for transmitting a signal - Google Patents

Method for transmitting a signal

Info

Publication number
HK14596A
HK14596A HK14596A HK14596A HK14596A HK 14596 A HK14596 A HK 14596A HK 14596 A HK14596 A HK 14596A HK 14596 A HK14596 A HK 14596A HK 14596 A HK14596 A HK 14596A
Authority
HK
Hong Kong
Prior art keywords
pilot signal
signal
difficulties
recording
transmitting
Prior art date
Application number
HK14596A
Inventor
Werner Dipl-Ing Scholz
Original Assignee
Thomson Brandt Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK14596A publication Critical patent/HK14596A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/08—Pulse-modulation recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • 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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G11B5/592—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
    • G11B5/5921—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

Whenever a low-frequency pilot signal is transmitted in alternation with the useful signal, difficulties arise in erasure. These difficulties are avoided by the pilot signal in each case being repeatedly switched over briefly during a half-wave to another amplitude value (chopped). Particularly suitable for recording a pilot signal for automatic track following (ATF) in digital sound recording (R-DAT).
HK14596A 1987-01-09 1996-01-25 Method for transmitting a signal HK14596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873700507 DE3700507A1 (en) 1987-01-09 1987-01-09 METHOD FOR TRANSMITTING A SIGNAL

Publications (1)

Publication Number Publication Date
HK14596A true HK14596A (en) 1996-02-02

Family

ID=6318616

Family Applications (1)

Application Number Title Priority Date Filing Date
HK14596A HK14596A (en) 1987-01-09 1996-01-25 Method for transmitting a signal

Country Status (7)

Country Link
EP (1) EP0274377B1 (en)
JP (1) JP2968272B2 (en)
KR (1) KR910009605B1 (en)
AT (1) ATE110484T1 (en)
DE (2) DE3700507A1 (en)
ES (1) ES2058140T3 (en)
HK (1) HK14596A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827826C2 (en) * 1978-06-24 1984-11-29 Robert Bosch Gmbh, 7000 Stuttgart Method for improving the signal-to-noise ratio in magnetic recording of digital pulses
JPS58191573A (en) * 1982-05-06 1983-11-08 Victor Co Of Japan Ltd Horizontal scanning frequency multiplier circuit
JPS60201558A (en) * 1984-03-22 1985-10-12 Toshiba Corp Reproducing device of magnetic recording
JPH0687330B2 (en) * 1984-08-06 1994-11-02 ソニー株式会社 Digital signal playback device

Also Published As

Publication number Publication date
DE3851159D1 (en) 1994-09-29
DE3700507A1 (en) 1988-08-04
JPS63175254A (en) 1988-07-19
KR880009359A (en) 1988-09-14
ES2058140T3 (en) 1994-11-01
EP0274377A3 (en) 1992-05-20
ATE110484T1 (en) 1994-09-15
JP2968272B2 (en) 1999-10-25
EP0274377B1 (en) 1994-08-24
EP0274377A2 (en) 1988-07-13
KR910009605B1 (en) 1991-11-23

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20080104