JPS5223304A - Optical read system of recorded signals in stereophonic sound recording disc - Google Patents

Optical read system of recorded signals in stereophonic sound recording disc

Info

Publication number
JPS5223304A
JPS5223304A JP9906875A JP9906875A JPS5223304A JP S5223304 A JPS5223304 A JP S5223304A JP 9906875 A JP9906875 A JP 9906875A JP 9906875 A JP9906875 A JP 9906875A JP S5223304 A JPS5223304 A JP S5223304A
Authority
JP
Japan
Prior art keywords
sound recording
recording disc
optical read
recorded signals
stereophonic sound
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.)
Granted
Application number
JP9906875A
Other languages
Japanese (ja)
Other versions
JPS5817970B2 (en
Inventor
Akira Asano
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP50099068A priority Critical patent/JPS5817970B2/en
Publication of JPS5223304A publication Critical patent/JPS5223304A/en
Publication of JPS5817970B2 publication Critical patent/JPS5817970B2/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/16—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing
    • G11B11/18—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing with reproducing by optical means

Abstract

PURPOSE:In a record engraved with solid acoustic signals, discrete solid acoustic singals are obtained by individually detecting changes in reflection light quantity from each land adjoining walls of sound grooves.
JP50099068A 1975-08-16 1975-08-16 Ritsutaion Kiyou Enban Record Doniokel Expired JPS5817970B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50099068A JPS5817970B2 (en) 1975-08-16 1975-08-16 Ritsutaion Kiyou Enban Record Doniokel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50099068A JPS5817970B2 (en) 1975-08-16 1975-08-16 Ritsutaion Kiyou Enban Record Doniokel

Publications (2)

Publication Number Publication Date
JPS5223304A true JPS5223304A (en) 1977-02-22
JPS5817970B2 JPS5817970B2 (en) 1983-04-11

Family

ID=14237496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50099068A Expired JPS5817970B2 (en) 1975-08-16 1975-08-16 Ritsutaion Kiyou Enban Record Doniokel

Country Status (1)

Country Link
JP (1) JPS5817970B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045917U (en) * 1983-09-06 1985-04-01 日本ノ−ション工業株式会社 eggplant ring
JPS61185318U (en) * 1985-05-11 1986-11-19
US5863695A (en) * 1992-08-25 1999-01-26 Canon Kabushiki Kaisha Toner for developing electrostatic image and image forming method
US7252914B2 (en) 2002-03-19 2007-08-07 Fuji Xerox Co., Ltd. Toner for electrophotography and developer for electrophotography using the same, process cartridge, apparatus for forming image, and method for forming image

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133480A (en) * 1965-12-08 1968-11-13 Phillip Bruce Dahlen Phonograph apparatus
JPS4910304A (en) * 1972-05-31 1974-01-29

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133480A (en) * 1965-12-08 1968-11-13 Phillip Bruce Dahlen Phonograph apparatus
JPS4910304A (en) * 1972-05-31 1974-01-29

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045917U (en) * 1983-09-06 1985-04-01 日本ノ−ション工業株式会社 eggplant ring
JPS61185318U (en) * 1985-05-11 1986-11-19
US5863695A (en) * 1992-08-25 1999-01-26 Canon Kabushiki Kaisha Toner for developing electrostatic image and image forming method
US7252914B2 (en) 2002-03-19 2007-08-07 Fuji Xerox Co., Ltd. Toner for electrophotography and developer for electrophotography using the same, process cartridge, apparatus for forming image, and method for forming image

Also Published As

Publication number Publication date
JPS5817970B2 (en) 1983-04-11

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