CA945671A - Method and apparatus for amplitude sensing and data gating in a moving-magnetic-storage device with digital interface - Google Patents

Method and apparatus for amplitude sensing and data gating in a moving-magnetic-storage device with digital interface

Info

Publication number
CA945671A
CA945671A CA122,725A CA122725A CA945671A CA 945671 A CA945671 A CA 945671A CA 122725 A CA122725 A CA 122725A CA 945671 A CA945671 A CA 945671A
Authority
CA
Canada
Prior art keywords
magnetic
moving
storage device
digital interface
data gating
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
CA122,725A
Other languages
English (en)
Other versions
CA122725S (en
Inventor
Rolf Andresen
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 CA945671A publication Critical patent/CA945671A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/08—Amplitude regulation arrangements
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
CA122,725A 1970-09-28 1971-09-14 Method and apparatus for amplitude sensing and data gating in a moving-magnetic-storage device with digital interface Expired CA945671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7614470A 1970-09-28 1970-09-28

Publications (1)

Publication Number Publication Date
CA945671A true CA945671A (en) 1974-04-16

Family

ID=22130188

Family Applications (1)

Application Number Title Priority Date Filing Date
CA122,725A Expired CA945671A (en) 1970-09-28 1971-09-14 Method and apparatus for amplitude sensing and data gating in a moving-magnetic-storage device with digital interface

Country Status (10)

Country Link
US (1) US3725885A (de)
AU (1) AU445497B2 (de)
BE (1) BE773025A (de)
CA (1) CA945671A (de)
CH (1) CH531753A (de)
DE (1) DE2147359C3 (de)
ES (1) ES395344A1 (de)
FR (1) FR2105824A5 (de)
GB (1) GB1327869A (de)
SE (1) SE379598B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202016A (en) * 1978-01-30 1980-05-06 Sampey Harry R Digital magnetic data storage and retrieval using audio analog recording techniques
FR2472304A1 (fr) * 1979-12-19 1981-06-26 Cii Honeywell Bull Procede pour commander le gain des circuits amplifiant les signaux delivres par une tete de lecture associee a un support d'informations et dispositif pour le mettre en oeuvre
JPS59165212A (ja) * 1983-03-08 1984-09-18 Sony Corp 情報信号再生装置
US5287227A (en) * 1989-11-08 1994-02-15 Seagate Technology, Inc. Track dependent variable level qualification pulse detector
US5150050A (en) * 1990-07-30 1992-09-22 Seagate Technology, Inc. Adaptive variable threshold qualification level circuit for signal processing in disk drives
JP2018182429A (ja) * 2017-04-06 2018-11-15 株式会社村田製作所 データ変換装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483542A (en) * 1962-09-13 1969-12-09 Litton Business Systems Inc Variable threshold playback amplifier
US3395355A (en) * 1964-04-16 1968-07-30 Potter Instrument Co Inc Variable time discriminator for double frequency encoded information
US3430215A (en) * 1964-07-13 1969-02-25 Burroughs Corp Automatic gain level stepping system
US3500385A (en) * 1967-07-17 1970-03-10 Ibm Coded data storage and retrieval system

Also Published As

Publication number Publication date
FR2105824A5 (de) 1972-04-28
ES395344A1 (es) 1973-12-01
DE2147359B2 (de) 1975-02-13
GB1327869A (en) 1973-08-22
US3725885A (en) 1973-04-03
SE379598B (de) 1975-10-13
BE773025A (fr) 1972-01-17
DE2147359A1 (de) 1972-04-06
DE2147359C3 (de) 1975-09-18
CH531753A (de) 1972-12-15
AU3379471A (en) 1973-03-29
AU445497B2 (en) 1974-02-21

Similar Documents

Publication Publication Date Title
CA968768A (en) Graphic recording apparatus and method in scintillation scanner
CA957289A (en) Method and a device for collecting substances floating in a liquid surface
CA929630A (en) Method and apparatus for transmitting information in meter reading
AU3178071A (en) Apparatus and method for sensing the position ofa surface
CA944067A (en) Method and apparatus for detecting errors read from moving-magnetic-storage device with digital interface
CA945671A (en) Method and apparatus for amplitude sensing and data gating in a moving-magnetic-storage device with digital interface
IT1019607B (it) Dispositivo per registrare ed utilizzare microprogrammi in un sistema di elaborazione di dati
CA920662A (en) System and apparatus for testing logic functions in a multiline data communication system
CA974571A (en) Method and device for recording images
CA928181A (en) Fluid sampling method and apparatus
CA958484A (en) Photo sensor array checking method and apparatus
CA929637A (en) Digital data analysis and display device
CA972051A (en) Speed detection method and apparatus
CA961421A (en) Document retrieval apparatus and method
CA900597A (en) Device adapted to be disposed on a recording and/or playback apparatus
CA794165A (en) Methods and apparatus for maintaining a liquid head in a centrifuge
CA802590A (en) Photo recording method and apparatus
CA777917A (en) Method and apparatus for analyzing a signal
CA844841A (en) Apparatus and method for placing a flow line on an offshore structure
CA841917A (en) Vibratory sensing device and method
CA925167A (en) Method and device for pulse detection
AU479737B2 (en) Method and apparatus for determining efficiency in a liquid scintillation system
CA966232A (en) Method and apparatus for determining efficiency in a liquid scintillation system
CA870724A (en) Speed sensing method and apparatus
CA832083A (en) Apparatus and method for determining thyroid function