GB1077882A - Improvements in or relating to magnetic recording head circuits - Google Patents

Improvements in or relating to magnetic recording head circuits

Info

Publication number
GB1077882A
GB1077882A GB89665A GB89665A GB1077882A GB 1077882 A GB1077882 A GB 1077882A GB 89665 A GB89665 A GB 89665A GB 89665 A GB89665 A GB 89665A GB 1077882 A GB1077882 A GB 1077882A
Authority
GB
United Kingdom
Prior art keywords
winding
magnetic recording
recording head
head
relating
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
GB89665A
Inventor
Arthur Alfred Bristor
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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Priority to GB89665A priority Critical patent/GB1077882A/en
Publication of GB1077882A publication Critical patent/GB1077882A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Heads (AREA)

Abstract

1,077,882. Magnetic recording head circuits. DECCA Ltd. Dec. 28, 1965 [Jan. 8, 1965], No. 896/65. Heading G5R. In order to assist in the recording of a step signal, a current previously flowing from a source 10 through an inductor 12 having an inductance substantially greater than that of the head winding 17 and through a first current path (a first transistor 13 as shown) may be switched to flow through the head winding 17 in series with the inductor 12 and a second current path (e.g. a second transistor 18). In modified circuits (Figs. 2 to 4, not shown) the current may be switched to flow through either half of a centre-tapped winding (17), which may form the primary winding of a transformer (41, Fig. 4) whose secondary feeds the head winding (43).
GB89665A 1965-01-08 1965-01-08 Improvements in or relating to magnetic recording head circuits Expired GB1077882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB89665A GB1077882A (en) 1965-01-08 1965-01-08 Improvements in or relating to magnetic recording head circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB89665A GB1077882A (en) 1965-01-08 1965-01-08 Improvements in or relating to magnetic recording head circuits

Publications (1)

Publication Number Publication Date
GB1077882A true GB1077882A (en) 1967-08-02

Family

ID=9712384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89665A Expired GB1077882A (en) 1965-01-08 1965-01-08 Improvements in or relating to magnetic recording head circuits

Country Status (1)

Country Link
GB (1) GB1077882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084542A5 (en) * 1970-03-13 1971-12-17 Storage Technology Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2084542A5 (en) * 1970-03-13 1971-12-17 Storage Technology Corp

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