GB2418332B - Array loudspeaker with steered nulls - Google Patents

Array loudspeaker with steered nulls

Info

Publication number
GB2418332B
GB2418332B GB0514385A GB0514385A GB2418332B GB 2418332 B GB2418332 B GB 2418332B GB 0514385 A GB0514385 A GB 0514385A GB 0514385 A GB0514385 A GB 0514385A GB 2418332 B GB2418332 B GB 2418332B
Authority
GB
United Kingdom
Prior art keywords
nulls
steered
array loudspeaker
loudspeaker
array
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.)
Active
Application number
GB0514385A
Other versions
GB0514385D0 (en
GB2418332A (en
Inventor
Anthony Hooley
Angus Goudie
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.)
1 Ltd
Original Assignee
1 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 1 Ltd filed Critical 1 Ltd
Publication of GB0514385D0 publication Critical patent/GB0514385D0/en
Publication of GB2418332A publication Critical patent/GB2418332A/en
Application granted granted Critical
Publication of GB2418332B publication Critical patent/GB2418332B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB0514385A 2004-07-14 2005-07-14 Array loudspeaker with steered nulls Active GB2418332B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0415738.4A GB0415738D0 (en) 2004-07-14 2004-07-14 Stereo array loudspeaker with steered nulls

Publications (3)

Publication Number Publication Date
GB0514385D0 GB0514385D0 (en) 2005-08-17
GB2418332A GB2418332A (en) 2006-03-22
GB2418332B true GB2418332B (en) 2007-10-17

Family

ID=32893544

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0415738.4A Ceased GB0415738D0 (en) 2004-07-14 2004-07-14 Stereo array loudspeaker with steered nulls
GB0514385A Active GB2418332B (en) 2004-07-14 2005-07-14 Array loudspeaker with steered nulls

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0415738.4A Ceased GB0415738D0 (en) 2004-07-14 2004-07-14 Stereo array loudspeaker with steered nulls

Country Status (1)

Country Link
GB (2) GB0415738D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101416235B (en) 2006-03-31 2012-05-30 皇家飞利浦电子股份有限公司 A device for and a method of processing data
US8433076B2 (en) * 2010-07-26 2013-04-30 Motorola Mobility Llc Electronic apparatus for generating beamformed audio signals with steerable nulls
US10237645B2 (en) 2017-06-04 2019-03-19 Apple Inc. Audio systems with smooth directivity transitions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268829A (en) * 1980-03-24 1981-05-19 The United States Of America As Represented By The Secretary Of The Army Steerable null antenna processor with gain control
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers
US20040179693A1 (en) * 1997-11-18 2004-09-16 Abel Jonathan S. Crosstalk canceler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268829A (en) * 1980-03-24 1981-05-19 The United States Of America As Represented By The Secretary Of The Army Steerable null antenna processor with gain control
US20040179693A1 (en) * 1997-11-18 2004-09-16 Abel Jonathan S. Crosstalk canceler
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers

Also Published As

Publication number Publication date
GB0514385D0 (en) 2005-08-17
GB0415738D0 (en) 2004-08-18
GB2418332A (en) 2006-03-22

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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)

Free format text: REGISTERED BETWEEN 20130718 AND 20130724