SG89087G - Improvements in magnetic recording and playback apparatus - Google Patents

Improvements in magnetic recording and playback apparatus

Info

Publication number
SG89087G
SG89087G SG890/87A SG89087A SG89087G SG 89087 G SG89087 G SG 89087G SG 890/87 A SG890/87 A SG 890/87A SG 89087 A SG89087 A SG 89087A SG 89087 G SG89087 G SG 89087G
Authority
SG
Singapore
Prior art keywords
magnetic recording
playback apparatus
playback
recording
magnetic
Prior art date
Application number
SG890/87A
Other languages
English (en)
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of SG89087G publication Critical patent/SG89087G/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K11/00—Transforming types of modulations, e.g. position-modulated pulses into duration-modulated pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks
    • 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
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • 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
    • G11B5/035—Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Transmitters (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
SG890/87A 1983-03-25 1987-10-12 Improvements in magnetic recording and playback apparatus SG89087G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58048825A JPS59175209A (ja) 1983-03-25 1983-03-25 信号伝達回路

Publications (1)

Publication Number Publication Date
SG89087G true SG89087G (en) 1988-09-16

Family

ID=12813997

Family Applications (1)

Application Number Title Priority Date Filing Date
SG890/87A SG89087G (en) 1983-03-25 1987-10-12 Improvements in magnetic recording and playback apparatus

Country Status (10)

Country Link
US (1) US4639795A (fr)
JP (1) JPS59175209A (fr)
KR (1) KR920002671B1 (fr)
DE (1) DE3403263A1 (fr)
FR (1) FR2543381A1 (fr)
GB (1) GB2138231B (fr)
HK (1) HK388A (fr)
IT (1) IT1173924B (fr)
MY (1) MY101608A (fr)
SG (1) SG89087G (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004055A4 (nl) * 1987-11-24 1992-09-15 Feremans Eric Edmond Werkwijze en inrichting voor het reduceren van ruis.
JPH01143517A (ja) * 1987-11-30 1989-06-06 Matsushita Electric Ind Co Ltd フィルタ回路
JPH03121719U (fr) * 1990-03-27 1991-12-12
US5124593A (en) * 1990-09-26 1992-06-23 National Semiconductor Corporation Continuous-time filter tuning circuit and method
DE19630406C1 (de) * 1996-07-26 1998-01-29 Sgs Thomson Microelectronics Filterschaltung und damit ausgerüsteter Audiosignalprozessor
DE19630416C1 (de) 1996-07-26 1997-10-23 Sgs Thomson Microelectronics SC-Filter mit intrinsischer Anti-Aliasing-Funktion sowie damit ausgerüsteter Audiosignalprocessor
TW512595B (en) * 1999-03-04 2002-12-01 Benq Corp Signal transmission circuit for wireless cellular phone
KR100464446B1 (ko) * 2003-02-28 2005-01-03 삼성전자주식회사 임피던스 스케일링에 의한 주파수 응답 제어 장치
EP2182633A1 (fr) * 2008-10-30 2010-05-05 University College Cork Circuits pour transducteurs ultrasoniques
KR101228569B1 (ko) 2011-05-19 2013-02-07 한경희 초간편 건강 조립식 의자

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445685A (en) * 1966-11-10 1969-05-20 Gen Dynamics Corp Filtering apparatus
DE1948737C3 (de) * 1969-09-26 1978-06-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Analoges Schieberegister für ein rückgekoppeltes Abtastfilter
DE2063253A1 (de) * 1970-12-22 1972-07-13 Siemens Ag Filter für elektrische Schwingungen in der Art eines Schalterfilters
DE2832337A1 (de) * 1978-07-22 1980-01-31 Blaupunkt Werke Gmbh Informationsaufzeichnungs- und informationswiedergabegeraet
DE2838006A1 (de) * 1978-08-31 1980-03-13 Siemens Ag Integrierte filterschaltung
JPS55137715A (en) * 1979-04-13 1980-10-27 Nec Corp Switched capacitor filter
JPS56124107A (en) * 1980-03-05 1981-09-29 Hitachi Ltd Sound recording and reproducing switching circuit
US4331944A (en) * 1980-07-23 1982-05-25 Gte Automatic Electric Laboratories, Inc. Switched-capacitor resistor simulation circuits
US4468749A (en) * 1980-08-20 1984-08-28 Fujitsu Limited Adjustable attenuator circuit
JPS5738020A (en) * 1980-08-20 1982-03-02 Fujitsu Ltd Programmable switched capacitor filter
DE3044724C2 (de) * 1980-11-27 1983-07-07 Siemens AG, 1000 Berlin und 8000 München Verlustbehafteter Abtastintegrator, insbesondere zur Realisierung getakteter Filterschaltungen
FR2495403B1 (fr) * 1980-12-01 1986-01-17 Nat Res Dev Filtres electriques et procede de filtrage de signaux electriques
DE3277105D1 (en) * 1981-05-08 1987-10-01 Hitachi Ltd Signal voltage dividing circuit
DE3118198A1 (de) * 1981-05-08 1982-11-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schalter-kondensator-filter
JPS581319A (ja) * 1981-06-26 1983-01-06 Hitachi Ltd スイツチト．キヤパシタ形電子回路
JPS5836031A (ja) * 1981-08-28 1983-03-02 Hitachi Ltd 雑音低減装置

Also Published As

Publication number Publication date
KR920002671B1 (ko) 1992-03-31
IT8420195A0 (it) 1984-03-22
DE3403263A1 (de) 1984-09-27
GB2138231A (en) 1984-10-17
US4639795A (en) 1987-01-27
JPS59175209A (ja) 1984-10-04
IT1173924B (it) 1987-06-24
GB8400522D0 (en) 1984-02-15
GB2138231B (en) 1986-10-15
FR2543381A1 (fr) 1984-09-28
KR840008230A (ko) 1984-12-13
MY101608A (en) 1991-12-17
HK388A (en) 1988-01-15

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