DE3067699D1 - Data signal detection apparatus - Google Patents

Data signal detection apparatus

Info

Publication number
DE3067699D1
DE3067699D1 DE8080105500T DE3067699T DE3067699D1 DE 3067699 D1 DE3067699 D1 DE 3067699D1 DE 8080105500 T DE8080105500 T DE 8080105500T DE 3067699 T DE3067699 T DE 3067699T DE 3067699 D1 DE3067699 D1 DE 3067699D1
Authority
DE
Germany
Prior art keywords
data signal
detection apparatus
signal detection
data
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
DE8080105500T
Other languages
English (en)
Inventor
Dale Brian Chapman
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3067699D1 publication Critical patent/DE3067699D1/de
Expired legal-status Critical Current

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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
    • 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)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manipulation Of Pulses (AREA)
  • Dc Digital Transmission (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE8080105500T 1979-10-11 1980-09-15 Data signal detection apparatus Expired DE3067699D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/084,028 US4306194A (en) 1979-10-11 1979-10-11 Data signal detection circuit

Publications (1)

Publication Number Publication Date
DE3067699D1 true DE3067699D1 (en) 1984-06-07

Family

ID=22182435

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080105500T Expired DE3067699D1 (en) 1979-10-11 1980-09-15 Data signal detection apparatus

Country Status (5)

Country Link
US (1) US4306194A (de)
EP (1) EP0027547B1 (de)
JP (1) JPS6028460B2 (de)
CA (1) CA1145418A (de)
DE (1) DE3067699D1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1155558B (it) * 1982-07-19 1987-01-28 Cselt Centro Studi Lab Telecom Procedimento e strumento per la misura dell ampiezza di un segnale periodico fortemente affetto da rumore e senza riferimento di fase
JPH065593B2 (ja) * 1982-09-28 1994-01-19 株式会社東芝 磁気ディスク装置のパルス回路
US4536740A (en) * 1984-02-24 1985-08-20 Magnetic Peripherals Doublet detector for data recording or transmission
US4651105A (en) * 1984-09-26 1987-03-17 Applied Magnetics Corp. Digital peak detecting means for a pulse train of electrical signals having a frequency within a known frequency bandwidth
US4574234A (en) * 1984-09-26 1986-03-04 Applied Magnetics Corporation System for measuring selected parameters of electrical signals and method
DE3664071D1 (en) * 1985-03-07 1989-07-27 Siemens Ag Circuit arrangement for noise elimination in digital data signals in a digital transmission system
US4697098A (en) * 1985-06-10 1987-09-29 Priam Corporation Composite gate generator circuit for detecting valid data signals
JPS62120546A (ja) * 1985-11-20 1987-06-01 Nec Corp デコ−ダの試験装置
JPH0775107B2 (ja) * 1986-07-25 1995-08-09 株式会社日立製作所 磁気記録装置の信号再生回路
JPS63105457U (de) * 1986-12-25 1988-07-08
US4789838A (en) * 1987-03-23 1988-12-06 Cheng Jyi Min Pulse detection circuit using amplitude and time qualification
US5287534A (en) * 1990-01-04 1994-02-15 Digital Equipment Corporation Correcting crossover distortion produced when analog signal thresholds are used to remove noise from signal
DE4006426C2 (de) * 1990-03-01 1993-11-18 Siemens Nixdorf Inf Syst Verfahren zum Auswerten binärer Informationen einer Magnetspeicherkarte
US5461223A (en) * 1992-10-09 1995-10-24 Eastman Kodak Company Bar code detecting circuitry
US5293369A (en) * 1992-10-28 1994-03-08 International Business Machines Corporation Asynchronous sampling digital detector system for magnetic and optical recording channels
JP2654360B2 (ja) * 1994-10-31 1997-09-17 インターナショナル・ビジネス・マシーンズ・コーポレイション 読取信号補正装置、磁気ディスク装置及び読取信号補正方法
US6445192B1 (en) * 2000-04-04 2002-09-03 Rosemount Inc. Close proximity material interface detection for a microwave level transmitter
US7002378B2 (en) * 2000-12-29 2006-02-21 Intel Corporation Valid data strobe detection technique
JP4526596B2 (ja) * 2007-03-28 2010-08-18 富士通セミコンダクター株式会社 信号遅延評価プログラム、信号遅延評価方法、および信号遅延評価装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293451A (en) * 1963-09-30 1966-12-20 Gen Electric Peak detector
US3505537A (en) * 1967-03-09 1970-04-07 Rca Corp Signal envelope discriminator and gating circuit
US3559178A (en) * 1967-08-04 1971-01-26 Burroughs Corp Pulse discrimination circuitry
US3581297A (en) * 1967-09-18 1971-05-25 Burroughs Corp Binary data handling system
US3593334A (en) * 1968-11-29 1971-07-13 Burroughs Corp Pulse discrimination system
GB1328834A (en) * 1970-01-02 1973-09-05 Texas Instruments Inc Determination of the shape of analog waveforms
US3631263A (en) * 1970-01-09 1971-12-28 Ibm Signal detection circuit
US3715738A (en) * 1970-10-19 1973-02-06 Peripheral Business Equipment Data detection system
US3735372A (en) * 1971-07-02 1973-05-22 Mohawk Data Sciences Corp Seven or nine channel readout with adjustable threshold
DE2135320A1 (de) * 1971-07-15 1973-01-25 Licentia Gmbh Scheitel erkennende und stoeramplituden eliminierende schaltung
US3767938A (en) * 1972-05-26 1973-10-23 Ibm Zero sense after peak detection circuit
US3895237A (en) * 1973-07-05 1975-07-15 Ibm Peak detector
US3902190A (en) * 1973-11-23 1975-08-26 Rca Corp Programmable test of read/write circuitry by varying clipping levels
US4163909A (en) * 1977-08-23 1979-08-07 International Business Machines Corporation Peak detecting circuitry and dual threshold circuitry therefor
US4194223A (en) * 1978-09-18 1980-03-18 Redactron Corporation Magnetic recording detection
US4219152A (en) * 1979-02-21 1980-08-26 International Business Machines Corporation Dual threshold comparator circuit

Also Published As

Publication number Publication date
US4306194A (en) 1981-12-15
EP0027547A1 (de) 1981-04-29
CA1145418A (en) 1983-04-26
JPS6028460B2 (ja) 1985-07-04
EP0027547B1 (de) 1984-05-02
JPS5661858A (en) 1981-05-27

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee