HK1007645A1 - Audio-visual reproduction - Google Patents

Audio-visual reproduction

Info

Publication number
HK1007645A1
HK1007645A1 HK98106635A HK98106635A HK1007645A1 HK 1007645 A1 HK1007645 A1 HK 1007645A1 HK 98106635 A HK98106635 A HK 98106635A HK 98106635 A HK98106635 A HK 98106635A HK 1007645 A1 HK1007645 A1 HK 1007645A1
Authority
HK
Hong Kong
Prior art keywords
audio
source
level
signal
visual reproduction
Prior art date
Application number
HK98106635A
Other languages
English (en)
Inventor
David Norman Gore
Graham John Puddifoot
Edwin Charles Hayton
Original Assignee
Concourse Communications 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
Priority claimed from GB9019857A external-priority patent/GB2248001A/en
Application filed by Concourse Communications Ltd filed Critical Concourse Communications Ltd
Publication of HK1007645A1 publication Critical patent/HK1007645A1/xx

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Holo Graphy (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Laminated Bodies (AREA)
HK98106635A 1990-09-11 1998-06-25 Audio-visual reproduction HK1007645A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9019857A GB2248001A (en) 1990-09-11 1990-09-11 Controlling sound volume in dependence on ambient noise
GB9113709A GB2249231A (en) 1990-09-11 1991-06-25 Audio-visual reproduction
PCT/GB1991/001515 WO1992004772A1 (en) 1990-09-11 1991-09-05 Audio-visual reproduction

Publications (1)

Publication Number Publication Date
HK1007645A1 true HK1007645A1 (en) 1999-04-16

Family

ID=26297638

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106635A HK1007645A1 (en) 1990-09-11 1998-06-25 Audio-visual reproduction

Country Status (9)

Country Link
EP (1) EP0548181B1 (xx)
JP (1) JPH06500677A (xx)
AT (1) ATE156315T1 (xx)
AU (1) AU8523091A (xx)
CA (1) CA2091590A1 (xx)
DE (1) DE69127088T2 (xx)
GB (1) GB2264599B (xx)
HK (1) HK1007645A1 (xx)
WO (1) WO1992004772A1 (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90646C (fi) * 1991-06-13 1994-03-10 Kone Oy Hissin merkinantolaitteen paikallinen automaattinen äänen voimakkuuden säätö
ES2156687B1 (es) * 1998-11-11 2002-02-16 Paredes Viejo Daniel Aparato de reproduccion de imagenes y audio.
DE10018666A1 (de) 2000-04-14 2001-10-18 Harman Audio Electronic Sys Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029141A (en) * 1978-08-26 1980-03-12 Viva Co Gain control arrangements
GB2113445B (en) * 1981-12-23 1985-06-05 Kenneth Norman Rudd Customer operated automatic message dispenser system
DE3222266A1 (de) * 1982-06-10 1983-12-15 Karl Heinz 2000 Hamburg Krings Demonstrationswand
JPS60116072A (ja) * 1983-11-29 1985-06-22 N K B:Kk 情報提供システム
JP3002471B2 (ja) * 1988-08-19 2000-01-24 株式会社日立製作所 番組配信装置

Also Published As

Publication number Publication date
EP0548181A1 (en) 1993-06-30
AU8523091A (en) 1992-03-30
GB9305396D0 (en) 1993-05-26
GB2264599A (en) 1993-09-01
GB2264599B (en) 1995-05-17
CA2091590A1 (en) 1992-03-19
ATE156315T1 (de) 1997-08-15
DE69127088D1 (de) 1997-09-04
EP0548181B1 (en) 1997-07-30
JPH06500677A (ja) 1994-01-20
WO1992004772A1 (en) 1992-03-19
DE69127088T2 (de) 1998-02-26

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080905