GB2222733B - Analogue signal filter - Google Patents

Analogue signal filter

Info

Publication number
GB2222733B
GB2222733B GB8917204A GB8917204A GB2222733B GB 2222733 B GB2222733 B GB 2222733B GB 8917204 A GB8917204 A GB 8917204A GB 8917204 A GB8917204 A GB 8917204A GB 2222733 B GB2222733 B GB 2222733B
Authority
GB
United Kingdom
Prior art keywords
analogue signal
signal filter
filter
analogue
signal
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 - Fee Related
Application number
GB8917204A
Other versions
GB8917204D0 (en
GB2222733A (en
Inventor
Colin Fraser Ross
Mark Harper
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.)
Topexpress Ltd
Original Assignee
Topexpress 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
Priority claimed from GB888821002A external-priority patent/GB8821002D0/en
Priority claimed from GB888822874A external-priority patent/GB8822874D0/en
Priority claimed from GB888824220A external-priority patent/GB8824220D0/en
Application filed by Topexpress Ltd filed Critical Topexpress Ltd
Publication of GB8917204D0 publication Critical patent/GB8917204D0/en
Publication of GB2222733A publication Critical patent/GB2222733A/en
Application granted granted Critical
Publication of GB2222733B publication Critical patent/GB2222733B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0286—Combinations of filter structures
    • H03H17/0289—Digital and active filter structures

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Complex Calculations (AREA)
GB8917204A 1988-09-07 1989-07-27 Analogue signal filter Expired - Fee Related GB2222733B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888821002A GB8821002D0 (en) 1988-09-07 1988-09-07 Improved digital filter
GB888822874A GB8822874D0 (en) 1988-09-29 1988-09-29 Improved digital filter
GB888824220A GB8824220D0 (en) 1988-10-15 1988-10-15 Improved digital filter

Publications (3)

Publication Number Publication Date
GB8917204D0 GB8917204D0 (en) 1989-09-13
GB2222733A GB2222733A (en) 1990-03-14
GB2222733B true GB2222733B (en) 1992-01-22

Family

ID=27264062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8917204A Expired - Fee Related GB2222733B (en) 1988-09-07 1989-07-27 Analogue signal filter

Country Status (1)

Country Link
GB (1) GB2222733B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2145077C (en) * 1992-09-21 1998-09-01 Graham P. Eatwell Sampled-data filter with low delay
DE10030583A1 (en) * 2000-06-21 2002-01-10 Marconi Comm Gmbh Arrangement for processing high frequency signals has power limiter with analogue signal processing and digital signal processing with selective suppression of defined frequency ranges
JP2008122729A (en) * 2006-11-14 2008-05-29 Sony Corp Noise reducing device, noise reducing method, noise reducing program, and noise reducing audio outputting device
EP2259250A1 (en) * 2009-06-03 2010-12-08 Nxp B.V. Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element

Also Published As

Publication number Publication date
GB8917204D0 (en) 1989-09-13
GB2222733A (en) 1990-03-14

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080727