GB1101512A - Improvements in or relating to disc recording - Google Patents

Improvements in or relating to disc recording

Info

Publication number
GB1101512A
GB1101512A GB13005/65A GB1300565A GB1101512A GB 1101512 A GB1101512 A GB 1101512A GB 13005/65 A GB13005/65 A GB 13005/65A GB 1300565 A GB1300565 A GB 1300565A GB 1101512 A GB1101512 A GB 1101512A
Authority
GB
United Kingdom
Prior art keywords
signal
head
recording
march
amplitude
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
GB13005/65A
Inventor
Cyril Peter Windebank
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 GB13005/65A priority Critical patent/GB1101512A/en
Priority to DE19661522989 priority patent/DE1522989A1/en
Publication of GB1101512A publication Critical patent/GB1101512A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/006—Devices for removing chips by sucking and blowing simultaneously
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Abstract

1,101,512. Disc recording. DECCA Ltd. 2 March, 1966 [26 March, 1965], No. 13005/65. Heading G5R. A bevelled recording stylus is heated so that its temperature and the corresponding softening of the disc material vary in accordance with the amplitude of the signal to be recorded. As shown, the signal is picked up from a tape 10 by a head 14. The same head or an advance head 41 feeds the amplified and rectified signal, together with a constant D.C. signal from a source 44, through an adder 45 to a stylusheating coil 40 (Fig. 3) and also to control a valve 48 which passes carbon dioxide or other extinguishing gas into a swarf-removal duct (Fig. 5). The heater current may alternatively be amplitude-modulated A.C. A modified system for stereo recording is described (Fig. 6).
GB13005/65A 1965-03-26 1965-03-26 Improvements in or relating to disc recording Expired GB1101512A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13005/65A GB1101512A (en) 1965-03-26 1965-03-26 Improvements in or relating to disc recording
DE19661522989 DE1522989A1 (en) 1965-03-26 1966-03-25 Device for recording records

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13005/65A GB1101512A (en) 1965-03-26 1965-03-26 Improvements in or relating to disc recording

Publications (1)

Publication Number Publication Date
GB1101512A true GB1101512A (en) 1968-01-31

Family

ID=10015099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13005/65A Expired GB1101512A (en) 1965-03-26 1965-03-26 Improvements in or relating to disc recording

Country Status (2)

Country Link
DE (1) DE1522989A1 (en)
GB (1) GB1101512A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837656A (en) * 1972-04-19 1974-09-24 Rca Corp Chip removal in the mastering of fine-grooved discs
US4525827A (en) * 1981-10-24 1985-06-25 Teldec Telefunken - Decca Schallplatten Gmbh Apparatus for removing a cut chip by suction
FR2678197A1 (en) * 1991-06-26 1992-12-31 Recoules Automation Automatic riveting machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2126551C2 (en) * 1970-05-29 1982-08-19 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Gramophone record groove cutting needle - has flat cutting surface connected to two free surfaces via radiused polishing surfaces
WO1997044780A1 (en) * 1996-05-20 1997-11-27 International Business Machines Corporation Shape memory alloy recording medium, storage devices based thereon, and method for using these storage devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837656A (en) * 1972-04-19 1974-09-24 Rca Corp Chip removal in the mastering of fine-grooved discs
US4525827A (en) * 1981-10-24 1985-06-25 Teldec Telefunken - Decca Schallplatten Gmbh Apparatus for removing a cut chip by suction
FR2678197A1 (en) * 1991-06-26 1992-12-31 Recoules Automation Automatic riveting machine

Also Published As

Publication number Publication date
DE1522989A1 (en) 1969-10-16

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