HK8797A - Electro-acoustic device - Google Patents

Electro-acoustic device

Info

Publication number
HK8797A
HK8797A HK8797A HK8797A HK8797A HK 8797 A HK8797 A HK 8797A HK 8797 A HK8797 A HK 8797A HK 8797 A HK8797 A HK 8797A HK 8797 A HK8797 A HK 8797A
Authority
HK
Hong Kong
Prior art keywords
electro
acoustic device
volume
setting
acoustic
Prior art date
Application number
HK8797A
Inventor
Simon-Andre Lavaud
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK8797A publication Critical patent/HK8797A/en

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
    • H04R3/007—Protection circuits for transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

In electro-acoustic devices, either damage to health or destruction of the connected electro-acoustic transducer can occur by setting the volume to an inadmissibly high value. An arrangement for limiting the maximum possible setting of the volume is provided which is individually adjustable and can be stored. <IMAGE>
HK8797A 1989-08-24 1997-01-23 Electro-acoustic device HK8797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3927902A DE3927902A1 (en) 1989-08-24 1989-08-24 ELECTRIC ACOUSTIC DEVICE

Publications (1)

Publication Number Publication Date
HK8797A true HK8797A (en) 1997-01-31

Family

ID=6387738

Family Applications (1)

Application Number Title Priority Date Filing Date
HK8797A HK8797A (en) 1989-08-24 1997-01-23 Electro-acoustic device

Country Status (8)

Country Link
EP (1) EP0464273B1 (en)
JP (1) JPH0389612A (en)
KR (1) KR910005718A (en)
AT (1) ATE134462T1 (en)
DD (1) DD295485A5 (en)
DE (2) DE3927902A1 (en)
ES (1) ES2085325T3 (en)
HK (1) HK8797A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137605C2 (en) * 1991-11-15 1995-08-31 Grundig Emv Optical warning indicator for an electroacoustic device
KR100367235B1 (en) * 2000-07-14 2003-01-10 대한민국 Crosslinking method of high density polyethylene using the plasma reaction and heat storage material prepared using the same
JP4626145B2 (en) * 2003-12-19 2011-02-02 パナソニック株式会社 Audio output level setting method and apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225205A1 (en) * 1982-07-06 1984-01-19 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen METHOD FOR ADJUSTING CONTROL SIZES IN BROADCASTING AND TELEVISION DEVICES
DE3409855A1 (en) * 1984-03-17 1985-09-19 Blaupunkt-Werke Gmbh, 3200 Hildesheim ELECTRONIC DEVICE, IN PARTICULAR TELEVISION
DE3429508A1 (en) * 1984-08-10 1986-02-20 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth METHOD FOR LEVEL AND VOLUME ADJUSTMENT IN AN LF-AMPLIFIER AND ARRANGEMENT FOR IMPLEMENTING THE METHOD
DE3722752A1 (en) * 1987-07-09 1989-01-19 Engel Ludwig Dipl Ing Bidovsky Device for setting, storing and fetching an arbitrary number of fixed and variable set quantities in electrical devices
JPH01165068A (en) * 1987-12-19 1989-06-29 Pioneer Electron Corp Recording medium player

Also Published As

Publication number Publication date
KR910005718A (en) 1991-03-30
EP0464273B1 (en) 1996-02-21
ES2085325T3 (en) 1996-06-01
DE3927902A1 (en) 1991-02-28
EP0464273A1 (en) 1992-01-08
ATE134462T1 (en) 1996-03-15
JPH0389612A (en) 1991-04-15
DE59010150D1 (en) 1996-03-28
DD295485A5 (en) 1991-10-31

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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: 20060820