GB2013958B - Analogue recording on magnetic media - Google Patents

Analogue recording on magnetic media

Info

Publication number: GB2013958B
Authority: GB; United Kingdom
Prior art keywords: magnetic media; analogue recording; analogue; recording; media
Prior art date: 1977-12-27
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

GB7849682A

Other versions

GB2013958A (en

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.)

Dolby Laboratories Licensing Corp

Original Assignee

Dolby Laboratories Licensing Corp

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.)

1977-12-27

Filing date

1978-12-21

Publication date

1982-05-06

1978-12-21 Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp

1979-08-15 Publication of GB2013958A publication Critical patent/GB2013958A/en

1982-05-06 Application granted granted Critical

1982-05-06 Publication of GB2013958B publication Critical patent/GB2013958B/en

Status Expired legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
- 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
- G11B5/027—Analogue recording
- G11B5/03—Biasing

GB7849682A 1977-12-27 1978-12-21 Analogue recording on magnetic media Expired GB2013958B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US86454177A	1977-12-27	1977-12-27
US96868478A	1978-12-12	1978-12-12

Publications (2)

Publication Number	Publication Date
GB2013958A GB2013958A (en)	1979-08-15
GB2013958B true GB2013958B (en)	1982-05-06

Family

ID=27127845

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7849682A Expired GB2013958B (en)	1977-12-27	1978-12-21	Analogue recording on magnetic media

Country Status (9)

Country	Link
JP (1)	JPS54106215A (en)
AT (1)	AT370901B (en)
CA (1)	CA1122702A (en)
DE (1)	DE2855259A1 (en)
DK (1)	DK583278A (en)
FR (1)	FR2413741A1 (en)
GB (1)	GB2013958B (en)
NL (1)	NL7812490A (en)
SE (1)	SE7813317L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4263624A (en) *	1978-12-12	1981-04-21	Dolby Laboratories Licensing Corporation	Analog recording on magnetic media
US4314289A (en) *	1979-12-07	1982-02-02	International Business Machines Corporation	Biased pulsed recording systems and methods
EP0046410B1 (en) *	1980-08-20	1984-10-31	Bang & Olufsen A/S	Bias control method and apparatus for magnetic recording

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2628287A (en) *	1951-02-16	1953-02-10	Nathan M Haynes	Magnetic recording apparatus
DE1064732B (en) *	1957-10-22	1959-09-03	Loewe Opta Ag	Circuit arrangement for recording sound vibrations with frequency-dependent high-frequency premagnetization on tape-shaped magnetogram carriers
DE1099199B (en) *	1958-03-25	1961-02-09	Loewe Opta Ag	Circuit arrangement for controlling the amplitude of a high-frequency premagnetization for magnetic tape recording
US3665345A (en) *	1969-07-21	1972-05-23	Dolby Laboratories Inc	Compressors and expanders for noise reduction systems
JPS5319923B1 (en) *	1970-12-19	1978-06-23
US4011585A (en) *	1974-07-12	1977-03-08	Pioneer Electronic Corporation	Magnetic recording reproducing system
JPS5230440U (en) *	1975-08-22	1977-03-03

1978
- 1978-12-21 DE DE19782855259 patent/DE2855259A1/en not_active Withdrawn
- 1978-12-21 GB GB7849682A patent/GB2013958B/en not_active Expired
- 1978-12-22 NL NL7812490A patent/NL7812490A/en not_active Application Discontinuation
- 1978-12-22 FR FR7836151A patent/FR2413741A1/en not_active Withdrawn
- 1978-12-27 SE SE7813317A patent/SE7813317L/en unknown
- 1978-12-27 DK DK583278A patent/DK583278A/en not_active Application Discontinuation
- 1978-12-27 CA CA318,678A patent/CA1122702A/en not_active Expired
- 1978-12-27 JP JP16449878A patent/JPS54106215A/en active Pending
- 1978-12-27 AT AT0930178A patent/AT370901B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
AT370901B (en)	1983-05-10
JPS54106215A (en)	1979-08-21
GB2013958A (en)	1979-08-15
NL7812490A (en)	1979-06-29
ATA930178A (en)	1982-09-15
DK583278A (en)	1979-06-28
FR2413741A1 (en)	1979-07-27
SE7813317L (en)	1979-06-28
DE2855259A1 (en)	1979-07-05
CA1122702A (en)	1982-04-27

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Legal Events

Date	Code	Title	Description
1985-08-14	PCNP	Patent ceased through non-payment of renewal fee