GB1486392A - Data readout apparatus - Google Patents

Data readout apparatus

Info

Publication number
GB1486392A
GB1486392A GB7194/76A GB719476A GB1486392A GB 1486392 A GB1486392 A GB 1486392A GB 7194/76 A GB7194/76 A GB 7194/76A GB 719476 A GB719476 A GB 719476A GB 1486392 A GB1486392 A GB 1486392A
Authority
GB
United Kingdom
Prior art keywords
amplifier
gain
output
counter
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
Application number
GB7194/76A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Control Data Corp
NCR Voyix Corp
Original Assignee
Control Data Corp
NCR Corp
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 Control Data Corp, NCR Corp filed Critical Control Data Corp
Publication of GB1486392A publication Critical patent/GB1486392A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB7194/76A 1975-03-12 1976-02-24 Data readout apparatus Expired GB1486392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55763275A 1975-03-12 1975-03-12

Publications (1)

Publication Number Publication Date
GB1486392A true GB1486392A (en) 1977-09-21

Family

ID=24226251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7194/76A Expired GB1486392A (en) 1975-03-12 1976-02-24 Data readout apparatus

Country Status (7)

Country Link
US (1) US4091380A (forum.php)
JP (1) JPS51113552A (forum.php)
CA (1) CA1063717A (forum.php)
CH (1) CH607146A5 (forum.php)
DE (1) DE2610159A1 (forum.php)
FR (1) FR2304125A1 (forum.php)
GB (1) GB1486392A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182511A (en) * 1985-10-01 1987-05-13 Telex Computer Products Gain control apparatus

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158819A (en) * 1976-12-10 1979-06-19 Geosource Inc. Instantaneous floating point amplifier
US4357577A (en) * 1976-12-10 1982-11-02 Geosource Inc. Instantaneous floating point amplifier
US4222081A (en) * 1977-11-21 1980-09-09 Hitachi, Ltd. Information reading device for a multitrack storage device
JPS6033011B2 (ja) * 1978-05-28 1985-07-31 日本ビクター株式会社 自動音量減衰装置
US4194163A (en) * 1978-08-03 1980-03-18 Texaco Development Corporation Floating point amplifier means and method
US4298898A (en) * 1979-04-19 1981-11-03 Compagnie Internationale Pour L'informatique Cii Honeywell Bull Method of and apparatus for reading data from reference zones of a memory
FR2469043B1 (fr) * 1979-10-31 1986-01-24 Enertec Filtres accordes par commutation et utilisation dans un egalisateur d'enregistrement magnetique
US4399416A (en) * 1980-11-10 1983-08-16 Texaco Development Corporation Floating point amplifier
JPS5925450A (ja) * 1982-07-31 1984-02-09 Sharp Corp インラインデ−タ通信装置
US4833422A (en) * 1987-09-24 1989-05-23 Burr-Brown Corporation Programmable gain instrumentation amplifier
JPH02137169A (ja) * 1988-11-17 1990-05-25 Mitsubishi Electric Corp 信号処理回路
JP2667522B2 (ja) * 1989-07-06 1997-10-27 株式会社日立製作所 光ディスク装置
FR2676875B1 (fr) * 1991-05-24 1997-01-03 Alcatel Espace Dispositif amplificateur programmable.
US5283701A (en) * 1991-12-17 1994-02-01 Teac Corporation Automatic recording level control system providing for manual change of the standard level
FR2720569B1 (fr) * 1994-05-31 1996-07-05 Thomson Csf Amplificateur à plusieurs étages à transistors en cascade et à puissance de sortie ajustable.
US5488518A (en) * 1994-08-15 1996-01-30 Vtc Inc. Programmable pre-amplifier using a serial shift register to output a plurality of control signals
JPH09130245A (ja) * 1995-11-06 1997-05-16 Sony Corp ゲイン可変回路
US5838269A (en) * 1996-09-12 1998-11-17 Advanced Micro Devices, Inc. System and method for performing automatic gain control with gain scheduling and adjustment at zero crossings for reducing distortion
US5894283A (en) * 1997-04-03 1999-04-13 Advanced Micro Devices, Inc. Method and apparatus for converting analog signals into pulse signals with simultaneous analog signal compression
KR100303795B1 (ko) * 1998-08-07 2001-09-24 윤종용 송신신호 이득 제어방법
DE10255606A1 (de) * 2002-11-28 2004-06-17 Infineon Technologies Ag Verstärkeranordnung, Empfänger mit der Verstärkeranordnung und Verfahren zum Betrieb eines programmierbaren Verstärkers
JP2015046725A (ja) * 2013-08-27 2015-03-12 株式会社五洋電子 トーンスケルチ回路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT251319B (de) * 1965-01-20 1966-12-27 Ibm Oesterreich Internationale Analog-Digital- bzw. Digital-Analog-Wandler
US3331028A (en) * 1965-01-21 1967-07-11 Avco Corp Multistage transistor amplifier in which the impedances of the various stages are successively varied to control gain
US3308392A (en) * 1965-02-04 1967-03-07 Esso Production Company Seismic amplifier having means for changing the amplification of the seismic signal by discrete steps proportional to a given power of two
US3425051A (en) * 1965-03-10 1969-01-28 Us Air Force Analog-to-digital converter
US3464022A (en) * 1967-08-30 1969-08-26 Mandrel Industries Apparatus for controlling the gain of binary gain ranging amplifiers
US3579138A (en) * 1969-08-25 1971-05-18 American Optical Corp Automatic gain presetting circuit
US3662365A (en) * 1970-03-23 1972-05-09 Storage Technology Corp Dynamic amplitude control for magnetic tape systems
FR2110758A5 (forum.php) * 1970-10-29 1972-06-02 Sercel Rech Const Elect

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182511A (en) * 1985-10-01 1987-05-13 Telex Computer Products Gain control apparatus
GB2182511B (en) * 1985-10-01 1989-11-15 Telex Computer Products Apparatus for calibrating tape drive read system

Also Published As

Publication number Publication date
FR2304125B1 (forum.php) 1979-06-01
US4091380A (en) 1978-05-23
CA1063717A (en) 1979-10-02
DE2610159A1 (de) 1976-09-30
JPS51113552A (en) 1976-10-06
CH607146A5 (forum.php) 1978-11-30
FR2304125A1 (fr) 1976-10-08
JPS614209B2 (forum.php) 1986-02-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee

Free format text: IN PAT.BUL.5145,PAGE 2483 FOR 1486392 READ 1486393

PCNP Patent ceased through non-payment of renewal fee