GB201105120D0 - Analogue filter - Google Patents

Analogue filter

Info

Publication number
GB201105120D0
GB201105120D0 GB201105120A GB201105120A GB201105120D0 GB 201105120 D0 GB201105120 D0 GB 201105120D0 GB 201105120 A GB201105120 A GB 201105120A GB 201105120 A GB201105120 A GB 201105120A GB 201105120 D0 GB201105120 D0 GB 201105120D0
Authority
GB
United Kingdom
Prior art keywords
analogue filter
analogue
filter
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.)
Withdrawn
Application number
GB201105120A
Other versions
GB2489440A (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.)
Toshiba Europe Ltd
Original Assignee
Toshiba Research Europe 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
Application filed by Toshiba Research Europe Ltd filed Critical Toshiba Research Europe Ltd
Priority to GB201105120A priority Critical patent/GB2489440A/en
Publication of GB201105120D0 publication Critical patent/GB201105120D0/en
Publication of GB2489440A publication Critical patent/GB2489440A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H03H11/1286—Sallen-Key biquad
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/10—Frequency selective two-port networks using negative impedance converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks
GB201105120A 2011-03-25 2011-03-25 A crossover network comprising cascaded filter sections having conjugate phase responses Withdrawn GB2489440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201105120A GB2489440A (en) 2011-03-25 2011-03-25 A crossover network comprising cascaded filter sections having conjugate phase responses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201105120A GB2489440A (en) 2011-03-25 2011-03-25 A crossover network comprising cascaded filter sections having conjugate phase responses

Publications (2)

Publication Number Publication Date
GB201105120D0 true GB201105120D0 (en) 2011-05-11
GB2489440A GB2489440A (en) 2012-10-03

Family

ID=44067433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201105120A Withdrawn GB2489440A (en) 2011-03-25 2011-03-25 A crossover network comprising cascaded filter sections having conjugate phase responses

Country Status (1)

Country Link
GB (1) GB2489440A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016030651A1 (en) 2014-08-29 2016-03-03 Toshiba Research Europe Limited Timing alignment sensitivity for envelope tracking

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7705552A (en) * 1977-05-20 1978-11-22 Philips Nv QUADRATURE TRANSPOSITION STAPLE.
US4589135A (en) * 1984-02-14 1986-05-13 Baker Edward B Zero phase shift filtering
JP3230525B2 (en) * 1989-12-28 2001-11-19 メイヤー・サウンド・ラボラトリーズ・インコーポレーテツド Correction circuit and method for two-way speaker system
US5694439A (en) * 1995-03-21 1997-12-02 Intel Corporation Bi-directional low pass filtering method and apparatus
US5930374A (en) * 1996-10-17 1999-07-27 Aphex Systems, Ltd. Phase coherent crossover

Also Published As

Publication number Publication date
GB2489440A (en) 2012-10-03

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)