JPS5755514A - Magnetic recorder - Google Patents

Magnetic recorder

Info

Publication number
JPS5755514A
JPS5755514A JP13040480A JP13040480A JPS5755514A JP S5755514 A JPS5755514 A JP S5755514A JP 13040480 A JP13040480 A JP 13040480A JP 13040480 A JP13040480 A JP 13040480A JP S5755514 A JPS5755514 A JP S5755514A
Authority
JP
Japan
Prior art keywords
signal
recording
converter
digital signal
conversion
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.)
Pending
Application number
JP13040480A
Other languages
Japanese (ja)
Inventor
Atsushi Shibata
Hiroshi Wakebe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13040480A priority Critical patent/JPS5755514A/en
Publication of JPS5755514A publication Critical patent/JPS5755514A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements

Abstract

PURPOSE:To obtain a high-accuracy digital signal, by recording and reproducing an analog signal after a sampling and an A/D conversion to give again an A/D conversion to the difference to the above-mentioned sampled signal after a D/A conversion for recording and repeating these actions. CONSTITUTION:An analog signal given from an input terminal 101 is supplied to a sample holding (SH) circuit 102 to be held for a certain period. This signal is changed into an m-bit digital signal through the 1st A/D converter 103 and recorded on a magnetic tape 110 travelling toward an arrow mark by the 1st recording head 104. The recorded digital signal is reproduced by a reproducing head 106 and changed into an analog signal through a D/A converter 105 to be supplied to a differential circuit 109 along with the output of the circuit 102. Thus a differential signal is obtained. This differential signal is changed again into an n-bit digital signal through an A/D converter to be recorded on the tape 110 by the 2nd recording head 108. Accordingly the (m+n)-bit recording is performed as a result of an addition of the first and second recording actions. As a result, a high-accuracy signal is obtained by a converter of a small number of bits.
JP13040480A 1980-09-18 1980-09-18 Magnetic recorder Pending JPS5755514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13040480A JPS5755514A (en) 1980-09-18 1980-09-18 Magnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13040480A JPS5755514A (en) 1980-09-18 1980-09-18 Magnetic recorder

Publications (1)

Publication Number Publication Date
JPS5755514A true JPS5755514A (en) 1982-04-02

Family

ID=15033467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13040480A Pending JPS5755514A (en) 1980-09-18 1980-09-18 Magnetic recorder

Country Status (1)

Country Link
JP (1) JPS5755514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59137187A (en) * 1983-01-28 1984-08-07 Kuroki Kogyosho:Kk Spring and its production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59137187A (en) * 1983-01-28 1984-08-07 Kuroki Kogyosho:Kk Spring and its production

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