JPS57109141A - Signal recording and reproducing device - Google Patents

Signal recording and reproducing device

Info

Publication number
JPS57109141A
JPS57109141A JP18364580A JP18364580A JPS57109141A JP S57109141 A JPS57109141 A JP S57109141A JP 18364580 A JP18364580 A JP 18364580A JP 18364580 A JP18364580 A JP 18364580A JP S57109141 A JPS57109141 A JP S57109141A
Authority
JP
Japan
Prior art keywords
sides
films
conductor
exposed
recording
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
JP18364580A
Other languages
Japanese (ja)
Inventor
Kenichi Sawazaki
Junichiro Ikeuchi
Shuzo Hirahara
Taiji Higashiyama
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 JP18364580A priority Critical patent/JPS57109141A/en
Publication of JPS57109141A publication Critical patent/JPS57109141A/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 increase the amount of recorded information, by forming an insulated film having charge storage function on both sides of a semiconductor, exposing a part of semiconductor layer, and connecting it to a conductive support electrically via a conductor or a low resistance body. CONSTITUTION:SiO2 films 3, 3', Si3N4 films 4, 4' are laminated on both sides of a semiconductor layer 2 made of Si or the like to constitute a recording medium 1. A part of the films 3, 3', 4, 4', e.g., the center and the circumferential part are exposed, and the exposed part is implanted with conductor layers 10, 10', 11, 11', and metallic parts 12-14 are fixed so that they are electrically connected to a turn table 5 via the conductor layer, when the exposed part is at the turntable side. A recorded signal voltage is applied between a conductive head 6 and the turntable 5 for recording. Since both sides can be used for recording reproducing alternately, the amount of recorded information can be increased.
JP18364580A 1980-12-24 1980-12-24 Signal recording and reproducing device Pending JPS57109141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18364580A JPS57109141A (en) 1980-12-24 1980-12-24 Signal recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18364580A JPS57109141A (en) 1980-12-24 1980-12-24 Signal recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS57109141A true JPS57109141A (en) 1982-07-07

Family

ID=16139409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18364580A Pending JPS57109141A (en) 1980-12-24 1980-12-24 Signal recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS57109141A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345696A2 (en) * 1988-06-07 1989-12-13 Mitsubishi Denki Kabushiki Kaisha Data reproducing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345696A2 (en) * 1988-06-07 1989-12-13 Mitsubishi Denki Kabushiki Kaisha Data reproducing system

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