GB8411261D0 - Computing device - Google Patents

Computing device

Info

Publication number: GB8411261D0
Authority: GB; United Kingdom
Prior art keywords: computing device; computing
Prior art date: 1983-05-04
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

GB848411261A

Other versions

GB2140600B (en

GB2140600A (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.)

Victor Company of Japan Ltd

Nippon Victor KK

Original Assignee

Victor Company of Japan Ltd

Nippon Victor KK

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.)

1983-05-04

Filing date

1984-05-02

Publication date

1984-06-06

1983-05-04 Priority claimed from JP58078824A external-priority patent/JPH0228188B2/en

1983-05-04 Priority claimed from JP58078823A external-priority patent/JPH0228187B2/en

1984-05-02 Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd

1984-06-06 Publication of GB8411261D0 publication Critical patent/GB8411261D0/en

1984-11-28 Publication of GB2140600A publication Critical patent/GB2140600A/en

1987-04-23 Application granted granted Critical

1987-04-23 Publication of GB2140600B publication Critical patent/GB2140600B/en

Status Expired legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/141—Discrete Fourier transforms
- G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm

GB08411261A 1983-05-04 1984-05-02 Computing device for fast fourier transform Expired GB2140600B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP58078824A JPH0228188B2 (en)	1983-05-04	1983-05-04	KOSOKUFUURIE HENKANNOENZANSOCHI
JP58078823A JPH0228187B2 (en)	1983-05-04	1983-05-04	KOSOKUFUURIE HENKANNOENZANSOCHI

Publications (3)

Publication Number	Publication Date
GB8411261D0 true GB8411261D0 (en)	1984-06-06
GB2140600A GB2140600A (en)	1984-11-28
GB2140600B GB2140600B (en)	1987-04-23

Family

ID=26419877

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB08411261A Expired GB2140600B (en)	1983-05-04	1984-05-02	Computing device for fast fourier transform

Country Status (3)

Country	Link
DE (1)	DE3416536A1 (en)
FR (1)	FR2545629B1 (en)
GB (1)	GB2140600B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2172719B (en) *	1985-03-22	1988-10-05	Stc Plc	Digital phase rotation of signals
US5038311A (en) *	1990-08-10	1991-08-06	General Electric Company	Pipelined fast fourier transform processor
DE4130451B4 (en) *	1991-09-13	2004-09-16	Diehl Stiftung & Co.Kg	Circuit structure for performing the fast Fourier transform
US5831881A (en) *	1994-12-02	1998-11-03	Sican Gmbh	Method and circuit for forward/inverse discrete cosine transform (DCT/IDCT)
DE4442958C2 (en) *	1994-12-02	2001-05-10	Sican Gmbh	Method and circuit arrangement for performing multi-stage butterfly operations

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS597990B2 (en) *	1976-10-06	1984-02-22	日本電気株式会社	N-point discrete Fourier transform calculation device
GB2006485B (en) *	1977-10-07	1982-02-10	Secr Defence	Spectrum analysers
US4275452A (en) *	1979-11-08	1981-06-23	Rockwell International Corporation	Simplified fast fourier transform butterfly arithmetic unit

1984
- 1984-05-02 GB GB08411261A patent/GB2140600B/en not_active Expired
- 1984-05-04 FR FR8407007A patent/FR2545629B1/en not_active Expired - Lifetime
- 1984-05-04 DE DE19843416536 patent/DE3416536A1/en active Granted

Also Published As

Publication number	Publication date
GB2140600B (en)	1987-04-23
DE3416536A1 (en)	1984-11-08
GB2140600A (en)	1984-11-28
FR2545629B1 (en)	1991-05-24
DE3416536C2 (en)	1988-10-06
FR2545629A1 (en)	1984-11-09

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Legal Events

Date	Code	Title	Description
2002-01-02	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20010502