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GB2289583B - Adaptive audio system - Google Patents

Adaptive audio system

Info

Publication number
GB2289583B
GB2289583B GB9408847A GB9408847A GB2289583B GB 2289583 B GB2289583 B GB 2289583B GB 9408847 A GB9408847 A GB 9408847A GB 9408847 A GB9408847 A GB 9408847A GB 2289583 B GB2289583 B GB 2289583B
Authority
GB
United Kingdom
Prior art keywords
audio system
adaptive audio
adaptive
audio
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
GB9408847A
Other versions
GB9408847D0 (en
GB2289583A (en
Inventor
Richard Morris Trim
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.)
DOCKLANDS LIGHT RAILWAY LIMITE
GILDEN RESEARCH Ltd
Original Assignee
DOCKLANDS LIGHT RAILWAY LIMITE
GILDEN RESEARCH 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 DOCKLANDS LIGHT RAILWAY LIMITE, GILDEN RESEARCH Ltd filed Critical DOCKLANDS LIGHT RAILWAY LIMITE
Priority to GB9408847A priority Critical patent/GB2289583B/en
Publication of GB9408847D0 publication Critical patent/GB9408847D0/en
Publication of GB2289583A publication Critical patent/GB2289583A/en
Application granted granted Critical
Publication of GB2289583B publication Critical patent/GB2289583B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
GB9408847A 1994-05-04 1994-05-04 Adaptive audio system Expired - Fee Related GB2289583B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9408847A GB2289583B (en) 1994-05-04 1994-05-04 Adaptive audio system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9408847A GB2289583B (en) 1994-05-04 1994-05-04 Adaptive audio system

Publications (3)

Publication Number Publication Date
GB9408847D0 GB9408847D0 (en) 1994-06-22
GB2289583A GB2289583A (en) 1995-11-22
GB2289583B true GB2289583B (en) 1999-06-23

Family

ID=10754550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9408847A Expired - Fee Related GB2289583B (en) 1994-05-04 1994-05-04 Adaptive audio system

Country Status (1)

Country Link
GB (1) GB2289583B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002245950B2 (en) * 2001-04-11 2007-10-18 Cochlear Limited Variable sensitivity control for a cochlear implant
AUPR438601A0 (en) * 2001-04-11 2001-05-17 Cochlear Limited Variable sensitivity control for a cochlear implant
US9049524B2 (en) 2007-03-26 2015-06-02 Cochlear Limited Noise reduction in auditory prostheses
GB2457307A (en) 2008-02-11 2009-08-12 Apollo Fire Detectors Ltd Fire alarm signalling with voice modulated HF signal multiplexed on to plateaus of existing lower frequency pulses carried on power cabling
EP2898510B1 (en) 2012-09-19 2016-07-13 Dolby Laboratories Licensing Corporation Method, system and computer program for adaptive control of gain applied to an audio signal
US9461606B2 (en) * 2014-03-17 2016-10-04 Adaptive Sound Technologies, Inc. Systems and methods for automatic signal attenuation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998437A (en) * 1963-01-22 1965-07-14 Phillips Electric And Associat Improvements in and relating to attenuating circuit arrangements
US4322579A (en) * 1979-02-26 1982-03-30 U.S. Philips Corporation Sound reproduction in a space with an independent sound source
US4670798A (en) * 1983-10-28 1987-06-02 Max L. Campbell Point of purchase advertising system
US4984098A (en) * 1986-08-01 1991-01-08 Popad, Inc. Point of purchase automatically-actuated audio advertising device and method
EP0421941A1 (en) * 1989-10-06 1991-04-10 Calipso S.A.S. Management Consultant Di Giancarlo Cipelli Advertising apparatus for spreading audio-visual advertising messages
WO1991009402A1 (en) * 1989-12-14 1991-06-27 Elecom, Inc. Self-operating sound player
GB2258098A (en) * 1991-07-19 1993-01-27 Samsung Electronics Co Ltd Sound volume control in response to ambient noises and display of noise level

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998437A (en) * 1963-01-22 1965-07-14 Phillips Electric And Associat Improvements in and relating to attenuating circuit arrangements
US4322579A (en) * 1979-02-26 1982-03-30 U.S. Philips Corporation Sound reproduction in a space with an independent sound source
US4670798A (en) * 1983-10-28 1987-06-02 Max L. Campbell Point of purchase advertising system
US4984098A (en) * 1986-08-01 1991-01-08 Popad, Inc. Point of purchase automatically-actuated audio advertising device and method
EP0421941A1 (en) * 1989-10-06 1991-04-10 Calipso S.A.S. Management Consultant Di Giancarlo Cipelli Advertising apparatus for spreading audio-visual advertising messages
WO1991009402A1 (en) * 1989-12-14 1991-06-27 Elecom, Inc. Self-operating sound player
GB2258098A (en) * 1991-07-19 1993-01-27 Samsung Electronics Co Ltd Sound volume control in response to ambient noises and display of noise level

Also Published As

Publication number Publication date
GB9408847D0 (en) 1994-06-22
GB2289583A (en) 1995-11-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000504