FR2159431A1 - - Google Patents

Info

Publication number
FR2159431A1
FR2159431A1 FR7239784A FR7239784A FR2159431A1 FR 2159431 A1 FR2159431 A1 FR 2159431A1 FR 7239784 A FR7239784 A FR 7239784A FR 7239784 A FR7239784 A FR 7239784A FR 2159431 A1 FR2159431 A1 FR 2159431A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7239784A
Other languages
French (fr)
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.)
PETTAMP Ltd
Original Assignee
PETTAMP 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 PETTAMP Ltd filed Critical PETTAMP Ltd
Publication of FR2159431A1 publication Critical patent/FR2159431A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
    • G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR7239784A 1971-11-09 1972-11-09 Withdrawn FR2159431A1 (2)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5191671 1971-11-09
GB2342272 1972-05-18

Publications (1)

Publication Number Publication Date
FR2159431A1 true FR2159431A1 (2) 1973-06-22

Family

ID=26256501

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7239784A Withdrawn FR2159431A1 (2) 1971-11-09 1972-11-09

Country Status (6)

Country Link
BE (1) BE791105A (2)
DE (1) DE2254526A1 (2)
FR (1) FR2159431A1 (2)
IT (1) IT975492B (2)
LU (1) LU66435A1 (2)
NL (1) NL7215033A (2)

Also Published As

Publication number Publication date
IT975492B (it) 1974-07-20
NL7215033A (2) 1973-05-11
DE2254526A1 (de) 1973-05-10
LU66435A1 (2) 1973-02-01
BE791105A (fr) 1973-03-01

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Legal Events

Date Code Title Description
ST Notification of lapse