CA2520118C - Volume and compression control in movie theaters - Google Patents

Volume and compression control in movie theaters Download PDF

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Publication number
CA2520118C
CA2520118C CA2520118A CA2520118A CA2520118C CA 2520118 C CA2520118 C CA 2520118C CA 2520118 A CA2520118 A CA 2520118A CA 2520118 A CA2520118 A CA 2520118A CA 2520118 C CA2520118 C CA 2520118C
Authority
CA
Canada
Prior art keywords
channels
setting
compression
control
loudness
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
CA2520118A
Other languages
English (en)
French (fr)
Other versions
CA2520118A1 (en
Inventor
Kenneth James Gundry
John Iles
Roger Wallace Dressler
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of CA2520118A1 publication Critical patent/CA2520118A1/en
Application granted granted Critical
Publication of CA2520118C publication Critical patent/CA2520118C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
    • H03G9/10—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for tone control and volume expansion or compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Control Of Amplification And Gain Control (AREA)
CA2520118A 2003-04-24 2004-04-22 Volume and compression control in movie theaters Expired - Fee Related CA2520118C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/423,487 2003-04-24
US10/423,487 US7551745B2 (en) 2003-04-24 2003-04-24 Volume and compression control in movie theaters
PCT/US2004/012629 WO2004098053A2 (en) 2003-04-24 2004-04-22 Volume and compression control in movie theaters

Publications (2)

Publication Number Publication Date
CA2520118A1 CA2520118A1 (en) 2004-11-11
CA2520118C true CA2520118C (en) 2013-09-24

Family

ID=33299133

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2520118A Expired - Fee Related CA2520118C (en) 2003-04-24 2004-04-22 Volume and compression control in movie theaters

Country Status (8)

Country Link
US (1) US7551745B2 (enExample)
EP (1) EP1616386B1 (enExample)
JP (1) JP2006524968A (enExample)
CN (1) CN100514853C (enExample)
AT (1) ATE518302T1 (enExample)
AU (1) AU2004234745B2 (enExample)
CA (1) CA2520118C (enExample)
WO (1) WO2004098053A2 (enExample)

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Also Published As

Publication number Publication date
US7551745B2 (en) 2009-06-23
AU2004234745A1 (en) 2004-11-11
CA2520118A1 (en) 2004-11-11
JP2006524968A (ja) 2006-11-02
ATE518302T1 (de) 2011-08-15
WO2004098053A3 (en) 2005-02-10
EP1616386A2 (en) 2006-01-18
CN100514853C (zh) 2009-07-15
CN1774861A (zh) 2006-05-17
AU2004234745B2 (en) 2008-10-30
WO2004098053A2 (en) 2004-11-11
US20040213420A1 (en) 2004-10-28
EP1616386B1 (en) 2011-07-27

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20180423