GB2005943A - Equalizer Networks - Google Patents

Equalizer Networks

Info

Publication number
GB2005943A
GB2005943A GB7835061A GB7835061A GB2005943A GB 2005943 A GB2005943 A GB 2005943A GB 7835061 A GB7835061 A GB 7835061A GB 7835061 A GB7835061 A GB 7835061A GB 2005943 A GB2005943 A GB 2005943A
Authority
GB
United Kingdom
Prior art keywords
equalizer
bump
resonance
network
cascaded
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.)
Granted
Application number
GB7835061A
Other versions
GB2005943B (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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB7835061A priority Critical patent/GB2005943B/en
Publication of GB2005943A publication Critical patent/GB2005943A/en
Application granted granted Critical
Publication of GB2005943B publication Critical patent/GB2005943B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/143—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers
    • H04B3/145—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers variable equalisers

Abstract

An equalizer network that exhibits stability and may be cascaded with a transmission channel is disclosed. The network includes only two operational amplifiers, resistors and capacitors and provides a bump shaped amplitude characteristic at resonance frequency. The equalizer maybe modified to exhibit selectively a 'bump' or 'dip' at resonance, and may be so constructed that trimming operations and the independent selection of parameters is facilitated. <IMAGE>
GB7835061A 1977-09-07 1978-08-30 Equalizer networks Expired GB2005943B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7835061A GB2005943B (en) 1977-09-07 1978-08-30 Equalizer networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3735877 1977-09-07
GB7835061A GB2005943B (en) 1977-09-07 1978-08-30 Equalizer networks

Publications (2)

Publication Number Publication Date
GB2005943A true GB2005943A (en) 1979-04-25
GB2005943B GB2005943B (en) 1982-04-21

Family

ID=26263425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835061A Expired GB2005943B (en) 1977-09-07 1978-08-30 Equalizer networks

Country Status (1)

Country Link
GB (1) GB2005943B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357646A (en) * 1999-12-23 2001-06-27 Ericsson Telefon Ab L M Equaliser circuits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357646A (en) * 1999-12-23 2001-06-27 Ericsson Telefon Ab L M Equaliser circuits
US6525621B2 (en) 1999-12-23 2003-02-25 Telefon Aktiebolaget Lm Ericsson (Publ) Equalizer circuits for use in radio frequency signal receivers
GB2357646B (en) * 1999-12-23 2004-04-21 Ericsson Telefon Ab L M Equaliser circuits

Also Published As

Publication number Publication date
GB2005943B (en) 1982-04-21

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19980829