AU519288B2 - Ambient noise operated volume control - Google Patents

Ambient noise operated volume control

Info

Publication number
AU519288B2
AU519288B2 AU49950/79A AU4995079A AU519288B2 AU 519288 B2 AU519288 B2 AU 519288B2 AU 49950/79 A AU49950/79 A AU 49950/79A AU 4995079 A AU4995079 A AU 4995079A AU 519288 B2 AU519288 B2 AU 519288B2
Authority
AU
Australia
Prior art keywords
volume control
ambient noise
operated volume
noise operated
ambient
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.)
Ceased
Application number
AU49950/79A
Other versions
AU4995079A (en
Inventor
Tetsuya Takizawa
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.)
Viva Co Ltd
Original Assignee
Viva Co 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 Viva Co Ltd filed Critical Viva Co Ltd
Publication of AU4995079A publication Critical patent/AU4995079A/en
Application granted granted Critical
Publication of AU519288B2 publication Critical patent/AU519288B2/en
Anticipated expiration legal-status Critical
Ceased 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
AU49950/79A 1978-08-26 1979-08-15 Ambient noise operated volume control Ceased AU519288B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10338578 1978-08-26
JP53103385A JPS5841003B2 (en) 1978-08-26 1978-08-26 automatic volume adjustment device
JP14494378 1978-11-25
JP15623978 1978-12-20

Publications (2)

Publication Number Publication Date
AU4995079A AU4995079A (en) 1980-03-06
AU519288B2 true AU519288B2 (en) 1981-11-19

Family

ID=14352603

Family Applications (1)

Application Number Title Priority Date Filing Date
AU49950/79A Ceased AU519288B2 (en) 1978-08-26 1979-08-15 Ambient noise operated volume control

Country Status (2)

Country Link
JP (1) JPS5841003B2 (en)
AU (1) AU519288B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602351B2 (en) * 1986-08-13 1990-10-11 Aranda Audio Applications Pty. Ltd. Adaptive gain control amplifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924193A (en) * 1987-01-30 1990-05-08 Nec Corporation Volume control circuit for use in portable telephone or the like

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225550A (en) * 1975-08-22 1977-02-25 Biiba Kk Automatic sound volume controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602351B2 (en) * 1986-08-13 1990-10-11 Aranda Audio Applications Pty. Ltd. Adaptive gain control amplifier

Also Published As

Publication number Publication date
JPS5841003B2 (en) 1983-09-09
AU4995079A (en) 1980-03-06
JPS5530240A (en) 1980-03-04

Similar Documents

Publication Publication Date Title
AU525727B2 (en) Laminates
AU4324679A (en) Coffin
AU531758B2 (en) Noise eliminating circuit
AU5339779A (en) Diamine-acrylonitrile graft
GB2019695B (en) Ambient sound reduction
AU528885B2 (en) Double glazine assembly
AU4418579A (en) Compressed-gas circuit-interrupter
AU5311979A (en) Remote control devices
AU519481B2 (en) Gain control
AU523722B2 (en) Axle-hub assembly
AU4692579A (en) Control units
AU511763B2 (en) Gain control
AU526538B2 (en) Descent control unit
AU529120B2 (en) Metal-thermoplastic-metal laminates
AU507552B1 (en) Variable volume control assembly
AU519288B2 (en) Ambient noise operated volume control
AU4349079A (en) Latching mechanism
AU4507579A (en) Rumble-free microphone combination
AU524186B2 (en) Press control
AU534229B2 (en) Volume control
AU523503B2 (en) Control circuit
SU676795A1 (en) Control valve
AU521664B2 (en) Volume control
SU694908A1 (en) Door switch
AU503416B2 (en) Termite control