GB1406720A - Apparatus and method for reducing muliplicative gain variation distortions - Google Patents

Apparatus and method for reducing muliplicative gain variation distortions

Info

Publication number
GB1406720A
GB1406720A GB4502572A GB4502572A GB1406720A GB 1406720 A GB1406720 A GB 1406720A GB 4502572 A GB4502572 A GB 4502572A GB 4502572 A GB4502572 A GB 4502572A GB 1406720 A GB1406720 A GB 1406720A
Authority
GB
United Kingdom
Prior art keywords
signals
receiver
successive
ratios
data
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
GB4502572A
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1406720A publication Critical patent/GB1406720A/en
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
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1496—Digital recording or reproducing using self-clocking codes characterised by the use of more than three levels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Noise Elimination (AREA)
GB4502572A 1971-10-29 1972-09-29 Apparatus and method for reducing muliplicative gain variation distortions Expired GB1406720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19389871A 1971-10-29 1971-10-29

Publications (1)

Publication Number Publication Date
GB1406720A true GB1406720A (en) 1975-09-17

Family

ID=22715470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4502572A Expired GB1406720A (en) 1971-10-29 1972-09-29 Apparatus and method for reducing muliplicative gain variation distortions

Country Status (6)

Country Link
JP (1) JPS4858812A (enrdf_load_stackoverflow)
DE (1) DE2253132A1 (enrdf_load_stackoverflow)
FR (1) FR2158005A1 (enrdf_load_stackoverflow)
GB (1) GB1406720A (enrdf_load_stackoverflow)
IT (1) IT966830B (enrdf_load_stackoverflow)
NL (1) NL7214584A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210288843A1 (en) * 2020-03-16 2021-09-16 Micron Technology, Inc. Linear equalization, and associated methods, devices, and systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381444A (fr) * 1962-10-23 1964-12-14 Int Standard Electric Corp Dispositif de codage à quantification non linéaire
US3397396A (en) * 1963-01-30 1968-08-13 Nippon Electric Co Decoding device with a nonlinear companding characteristic
FR1559633A (enrdf_load_stackoverflow) * 1967-10-12 1969-03-14

Also Published As

Publication number Publication date
IT966830B (it) 1974-02-20
DE2253132A1 (de) 1973-05-10
NL7214584A (enrdf_load_stackoverflow) 1973-05-02
JPS4858812A (enrdf_load_stackoverflow) 1973-08-17
FR2158005A1 (enrdf_load_stackoverflow) 1973-06-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee