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IT1199931B - Dispositivo per integrare una pluralita'di sistemi audio - Google Patents

Dispositivo per integrare una pluralita'di sistemi audio

Info

Publication number
IT1199931B
IT1199931B IT47547/85A IT4754785A IT1199931B IT 1199931 B IT1199931 B IT 1199931B IT 47547/85 A IT47547/85 A IT 47547/85A IT 4754785 A IT4754785 A IT 4754785A IT 1199931 B IT1199931 B IT 1199931B
Authority
IT
Italy
Prior art keywords
integrate
audio systems
audio
systems
Prior art date
Application number
IT47547/85A
Other languages
English (en)
Other versions
IT8547547A1 (it
IT8547547A0 (it
Inventor
William L Meisenheimer
Original Assignee
Water Jat 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
Publication of IT8547547A0 publication Critical patent/IT8547547A0/it
Application filed by Water Jat Corp filed Critical Water Jat Corp
Publication of IT8547547A1 publication Critical patent/IT8547547A1/it
Application granted granted Critical
Publication of IT1199931B publication Critical patent/IT1199931B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • 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
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Control Of Amplification And Gain Control (AREA)
IT47547/85A 1984-01-20 1985-11-13 Dispositivo per integrare una pluralita'di sistemi audio IT1199931B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/572,701 US4560838A (en) 1984-01-20 1984-01-20 Apparatus for integrating a plurality of audio systems

Publications (3)

Publication Number Publication Date
IT8547547A0 IT8547547A0 (it) 1985-01-16
IT8547547A1 IT8547547A1 (it) 1987-05-13
IT1199931B true IT1199931B (it) 1989-01-05

Family

ID=24288990

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47547/85A IT1199931B (it) 1984-01-20 1985-11-13 Dispositivo per integrare una pluralita'di sistemi audio

Country Status (9)

Country Link
US (1) US4560838A (it)
JP (1) JPS60203099A (it)
AU (1) AU3778685A (it)
BE (1) BE901529A (it)
DE (1) DE3501472A1 (it)
ES (1) ES8602329A1 (it)
FR (1) FR2558668B1 (it)
GB (1) GB2153610B (it)
IT (1) IT1199931B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679240A (en) * 1985-04-15 1987-07-07 Richards Medical Company Touch sensitive hearing aid volume control circuit
US4979217A (en) * 1986-05-08 1990-12-18 Shipley Robert T Programmed audio controller
JPS6386907A (ja) * 1986-09-30 1988-04-18 Yamaha Corp 利得調整回路
US4953222A (en) * 1988-06-01 1990-08-28 Peavey Electronics Corporation Multiple channel gated amplifier system
DE4023244A1 (de) * 1990-07-21 1992-01-30 Fliesenhof Bookhorn Inh Ralf P Schaltvorrichtung an einrichtungen in feuchtraeumen, insbesondere bade- oder whirlpoolwannen usw.
US5524056A (en) * 1993-04-13 1996-06-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
US5852654A (en) * 1995-02-22 1998-12-22 Samsung Electronics Co., Ltd. Coupling device for use with a computer system
US6091812A (en) * 1996-11-12 2000-07-18 Siemens Information And Communication Networks, Inc. Apparatus and method for automatically switching a headset between a telephone and a second audio source
US20020131611A1 (en) * 2001-03-13 2002-09-19 Hoover Alan Anderson `Audio surround sound power management switching
US20070071251A1 (en) * 2005-09-21 2007-03-29 Macduff Ian Audio switch
JP2021170726A (ja) * 2020-04-15 2021-10-28 リンナイ株式会社 通信システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2332211C3 (de) * 1973-06-25 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gerät zum Auswerten von elektrischen Signalen
JPS54125013A (en) * 1978-03-23 1979-09-28 Nippon Gakki Seizo Kk Signal selecting circuit
US4217573A (en) * 1979-04-05 1980-08-12 Norris Elwood G Switching unit for selectively connecting together various combinations of audio subsystems
JPS5617506A (en) * 1979-07-23 1981-02-19 Sony Corp Digital type gain control device
US4306114A (en) * 1980-01-21 1981-12-15 Summa-Nova Corporation Automatic audio mixing selector device

Also Published As

Publication number Publication date
GB8500897D0 (en) 1985-02-20
GB2153610B (en) 1987-09-23
ES539691A0 (es) 1985-11-16
FR2558668A1 (fr) 1985-07-26
BE901529A (fr) 1985-05-17
AU3778685A (en) 1985-08-01
IT8547547A1 (it) 1987-05-13
IT8547547A0 (it) 1985-01-16
DE3501472A1 (de) 1985-08-01
ES8602329A1 (es) 1985-11-16
JPS60203099A (ja) 1985-10-14
FR2558668B1 (fr) 1988-10-14
US4560838A (en) 1985-12-24
GB2153610A (en) 1985-08-21

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