WO2007127822A3 - Reconfigurable audio-video surround sound receiver (avr) and method - Google Patents

Reconfigurable audio-video surround sound receiver (avr) and method Download PDF

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Publication number
WO2007127822A3
WO2007127822A3 PCT/US2007/067469 US2007067469W WO2007127822A3 WO 2007127822 A3 WO2007127822 A3 WO 2007127822A3 US 2007067469 W US2007067469 W US 2007067469W WO 2007127822 A3 WO2007127822 A3 WO 2007127822A3
Authority
WO
WIPO (PCT)
Prior art keywords
surround
audio
information
surround sound
avr
Prior art date
Application number
PCT/US2007/067469
Other languages
French (fr)
Other versions
WO2007127822A2 (en
Inventor
John L Melanson
Original Assignee
Cirrus Logic Inc
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 US11/380,840 external-priority patent/US7606380B2/en
Priority claimed from US11/425,976 external-priority patent/US7676049B2/en
Application filed by Cirrus Logic Inc filed Critical Cirrus Logic Inc
Publication of WO2007127822A2 publication Critical patent/WO2007127822A2/en
Publication of WO2007127822A3 publication Critical patent/WO2007127822A3/en

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Classifications

    • 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
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

An audio-video surround sound receiver (AVR) provides flexible surround speaker placement and a low cost simulated surround sound implementation. A processing circuit within an audio device or audio/visual (AV) device such as an audio- video receiver (AVR) generates signals for surround and main channel speakers that provide selectable operation between speaker placement in ordinary surround sound installation, or in a simulated surround sound installation with speakers placed at one end of a listening room. An electronic network within the audio device selects between a normal surround sound mode, in which the surround information is provided to surround channel outputs and main channel information is supplied to main channel outputs, or a simulated surround mode in which the main and surround channel outputs receive surround channel information in a phase-controlled relationship, directing the surround information away from a direct path toward the listening area, to diffuse the surround information.
PCT/US2007/067469 2006-04-28 2007-04-26 Reconfigurable audio-video surround sound receiver (avr) and method WO2007127822A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US11/380,840 US7606380B2 (en) 2006-04-28 2006-04-28 Method and system for sound beam-forming using internal device speakers in conjunction with external speakers
US11/380,840 2006-04-28
US11/383,125 US7545946B2 (en) 2006-04-28 2006-05-12 Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges
US11/383,125 2006-05-12
US11/425,976 US7676049B2 (en) 2006-05-12 2006-06-22 Reconfigurable audio-video surround sound receiver (AVR) and method
US11/425,976 2006-06-22

Publications (2)

Publication Number Publication Date
WO2007127822A2 WO2007127822A2 (en) 2007-11-08
WO2007127822A3 true WO2007127822A3 (en) 2008-12-24

Family

ID=38656367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/067469 WO2007127822A2 (en) 2006-04-28 2007-04-26 Reconfigurable audio-video surround sound receiver (avr) and method

Country Status (1)

Country Link
WO (1) WO2007127822A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8542854B2 (en) 2010-03-04 2013-09-24 Logitech Europe, S.A. Virtual surround for loudspeakers with increased constant directivity
US9264813B2 (en) 2010-03-04 2016-02-16 Logitech, Europe S.A. Virtual surround for loudspeakers with increased constant directivity
RU173123U1 (en) * 2016-12-28 2017-08-14 Даниил Евгеньевич Яковлев SPEAKER CLUSTER

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039755A (en) * 1976-07-26 1977-08-02 Teledyne, Inc. Auditorium simulator economizes on delay line bandwidth
US5005201A (en) * 1989-02-14 1991-04-02 Rca Licensing Corporation Apparatus and method thereof for improvement of stereophonic sound
US5809150A (en) * 1995-06-28 1998-09-15 Eberbach; Steven J. Surround sound loudspeaker system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039755A (en) * 1976-07-26 1977-08-02 Teledyne, Inc. Auditorium simulator economizes on delay line bandwidth
US5005201A (en) * 1989-02-14 1991-04-02 Rca Licensing Corporation Apparatus and method thereof for improvement of stereophonic sound
US5809150A (en) * 1995-06-28 1998-09-15 Eberbach; Steven J. Surround sound loudspeaker system

Also Published As

Publication number Publication date
WO2007127822A2 (en) 2007-11-08

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