JPS5724043A - Signal recording and reproducing system - Google Patents

Signal recording and reproducing system

Info

Publication number
JPS5724043A
JPS5724043A JP9855380A JP9855380A JPS5724043A JP S5724043 A JPS5724043 A JP S5724043A JP 9855380 A JP9855380 A JP 9855380A JP 9855380 A JP9855380 A JP 9855380A JP S5724043 A JPS5724043 A JP S5724043A
Authority
JP
Japan
Prior art keywords
polarization
recording
erasion
medium
head
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
JP9855380A
Other languages
Japanese (ja)
Inventor
Kenichi Sawazaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9855380A priority Critical patent/JPS5724043A/en
Publication of JPS5724043A publication Critical patent/JPS5724043A/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
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/08—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using electrostatic charge injection; Record carriers therefor

Abstract

PURPOSE:To obtain a large output reproduced signal having a high S/N, by performing erasion by eliminating the polarization by an AC erasion method for recording information obtained by the polarization of a recording medium containing a ferrodielectric layer. CONSTITUTION:A recording medium 1 is formed by providing a ferrodielectric layer 3 of barium titanate, etc. onto a conductive substrate 2 of aluminum, etc. A conductive recording head 4 is relatively shifted toward an arrow mark on the medium 1 with application of a digital information signal 5 to perform a recording by polarization. For the reproduction, an inductor 11 is connected to an electrostatic capacity 10 between the substrate 2 and a reproduction head 6, and then a high- frequency exciting signal 13 is applied to a resonance circuit 12. The output of the circuit 12 is detected via a diode 14, a peak detecting circuit 17 and an amplifier 18, respectively. In the erasion mode, an erasing head 8 having a curved surface applied with an AC voltage 9 is moved on the medium 1. Thus the polarization is erased with the AC voltage having amplitude reducing gradually. In such way, a large output reproduced signal can be obtained with a high S/N.
JP9855380A 1980-07-18 1980-07-18 Signal recording and reproducing system Pending JPS5724043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9855380A JPS5724043A (en) 1980-07-18 1980-07-18 Signal recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9855380A JPS5724043A (en) 1980-07-18 1980-07-18 Signal recording and reproducing system

Publications (1)

Publication Number Publication Date
JPS5724043A true JPS5724043A (en) 1982-02-08

Family

ID=14222871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9855380A Pending JPS5724043A (en) 1980-07-18 1980-07-18 Signal recording and reproducing system

Country Status (1)

Country Link
JP (1) JPS5724043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05256460A (en) * 1992-02-01 1993-10-05 Samsung Electronics Co Ltd Cooking grill with heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05256460A (en) * 1992-02-01 1993-10-05 Samsung Electronics Co Ltd Cooking grill with heater

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