GB2190221B - Signal transforming device - Google Patents

Signal transforming device

Info

Publication number: GB2190221B
Authority: GB; United Kingdom
Prior art keywords: transforming device; signal transforming; signal; transforming
Prior art date: 1986-05-08
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 - Lifetime

Application number

GB8707301A

Other versions

GB8707301D0 (en

GB2190221A (en

Inventor

Stephen Piers Luttrel

Jonathan Alexander S Pritchard

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.)

UK Secretary of State for Defence

Original Assignee

UK Secretary of State for Defence

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.)

1986-05-08

Filing date

1987-03-26

Publication date

1990-05-02

1987-03-26 Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence

1987-04-29 Publication of GB8707301D0 publication Critical patent/GB8707301D0/en

1987-11-11 Publication of GB2190221A publication Critical patent/GB2190221A/en

1990-05-02 Application granted granted Critical

1990-05-02 Publication of GB2190221B publication Critical patent/GB2190221B/en

2007-03-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- 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

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Mathematical Physics (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Computational Mathematics (AREA)
Mathematical Analysis (AREA)
Mathematical Optimization (AREA)
Pure & Applied Mathematics (AREA)
Data Mining & Analysis (AREA)
Algebra (AREA)
Software Systems (AREA)
General Engineering & Computer Science (AREA)
Databases & Information Systems (AREA)
Computer Hardware Design (AREA)
Complex Calculations (AREA)

GB8707301A 1986-05-08 1987-03-26 Signal transforming device Expired - Lifetime GB2190221B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB868611180A GB8611180D0 (en)	1986-05-08	1986-05-08	Signal transforming device

Publications (3)

Publication Number	Publication Date
GB8707301D0 GB8707301D0 (en)	1987-04-29
GB2190221A GB2190221A (en)	1987-11-11
GB2190221B true GB2190221B (en)	1990-05-02

Family

ID=10597489

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB868611180A Pending GB8611180D0 (en)	1986-05-08	1986-05-08	Signal transforming device
GB8707301A Expired - Lifetime GB2190221B (en)	1986-05-08	1987-03-26	Signal transforming device

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB868611180A Pending GB8611180D0 (en)	1986-05-08	1986-05-08	Signal transforming device

Country Status (1)

Country	Link
GB (2)	GB8611180D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8826711D0 (en) *	1988-11-15	1988-12-21	Secr Defence	Signal analysis device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4023028A (en) *	1974-08-20	1977-05-10	The United States Of America As Represented By The Secretary Of The Navy	Method and apparatus for computing the discrete Fourier transform recursively
GB1518501A (en) *	1975-08-13	1978-07-19	Nat Res Dev	Apparatus for computing the discrete fourier transform
US4164021A (en) *	1976-10-06	1979-08-07	Nippon Electric Co., Ltd.	2M-point discrete Fourier transform calculator comprising a pre-processor for twice performing extraction of conjugate symmetric and/or antisymmetric components
GB1571702A (en) *	1976-07-12	1980-07-16	Philips Nv	Digital signal processing arrangement
US4231103A (en) *	1979-02-12	1980-10-28	The United States Of America As Represented By The Secretary Of The Navy	Fast Fourier transform spectral analysis system employing adaptive window
EP0046105A1 (en) *	1980-08-06	1982-02-17	Thomson-Csf Telephone	Fast digital operator device
EP0080836A2 (en) *	1981-12-02	1983-06-08	Trw Inc.	Monolithic discrete-time digital convolution circuit
EP0083967A2 (en) *	1982-01-11	1983-07-20	Trw Inc.	Monolithic fast Fourier transform circuit

1986
- 1986-05-08 GB GB868611180A patent/GB8611180D0/en active Pending
1987
- 1987-03-26 GB GB8707301A patent/GB2190221B/en not_active Expired - Lifetime

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4023028A (en) *	1974-08-20	1977-05-10	The United States Of America As Represented By The Secretary Of The Navy	Method and apparatus for computing the discrete Fourier transform recursively
GB1518501A (en) *	1975-08-13	1978-07-19	Nat Res Dev	Apparatus for computing the discrete fourier transform
GB1571702A (en) *	1976-07-12	1980-07-16	Philips Nv	Digital signal processing arrangement
US4164021A (en) *	1976-10-06	1979-08-07	Nippon Electric Co., Ltd.	2M-point discrete Fourier transform calculator comprising a pre-processor for twice performing extraction of conjugate symmetric and/or antisymmetric components
US4231103A (en) *	1979-02-12	1980-10-28	The United States Of America As Represented By The Secretary Of The Navy	Fast Fourier transform spectral analysis system employing adaptive window
EP0046105A1 (en) *	1980-08-06	1982-02-17	Thomson-Csf Telephone	Fast digital operator device
EP0080836A2 (en) *	1981-12-02	1983-06-08	Trw Inc.	Monolithic discrete-time digital convolution circuit
EP0083967A2 (en) *	1982-01-11	1983-07-20	Trw Inc.	Monolithic fast Fourier transform circuit

Also Published As

Publication number	Publication date
GB8707301D0 (en)	1987-04-29
GB8611180D0 (en)	1986-06-18
GB2190221A (en)	1987-11-11

Publication	Publication Date	Title
GB8601586D0 (en)	1986-02-26	Device
GB2188805B (en)	1991-01-09	Device
GB8702434D0 (en)	1987-03-11	Slip-proofing device
GB8725644D0 (en)	1987-12-09	Connection device
GB2194566B (en)	1990-07-04	Anti-perching device
GB8615670D0 (en)	1986-07-30	Device
GB2190657B (en)	1989-12-13	Diaphragm-and-chamber device
GB8711831D0 (en)	1987-06-24	Connection device
GB8617015D0 (en)	1986-08-20	Device
GB8607789D0 (en)	1986-04-30	Device
EP0251801A3 (en)	1988-07-20	Vibrostimulative device
GB8721162D0 (en)	1987-10-14	Hand-weaving device
GB2195974B (en)	1990-02-28	Non-refilling device
GB2199567B (en)	1990-09-26	Parcelling device
GB2200850B (en)	1990-05-02	Ball-firing device
GB8625334D0 (en)	1986-11-26	Device
GB8620688D0 (en)	1986-10-08	Spray-reducing device
GB2190221B (en)	1990-05-02	Signal transforming device
GB2192616B (en)	1989-12-13	Mail-handler device
GB8605693D0 (en)	1986-04-16	Device
GB8703705D0 (en)	1987-03-25	Slow-ignition device
RU1769221C (en)	1992-10-15	Telemetering device
GB8613274D0 (en)	1986-07-09	Anti-snore device
BG42474A1 (en)	1987-12-15	Counter- fixing device
GB8618444D0 (en)	1986-09-03	Aide-memoire device

Legal Events

Date	Code	Title	Description
1996-11-13	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19960326