JPH044420U - - Google Patents

Info

Publication number
JPH044420U
JPH044420U JP4333990U JP4333990U JPH044420U JP H044420 U JPH044420 U JP H044420U JP 4333990 U JP4333990 U JP 4333990U JP 4333990 U JP4333990 U JP 4333990U JP H044420 U JPH044420 U JP H044420U
Authority
JP
Japan
Prior art keywords
noise sensor
volume
noise
adjustment means
transmission device
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.)
Pending
Application number
JP4333990U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP4333990U priority Critical patent/JPH044420U/ja
Publication of JPH044420U publication Critical patent/JPH044420U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP4333990U 1990-04-23 1990-04-23 Pending JPH044420U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4333990U JPH044420U (zh) 1990-04-23 1990-04-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4333990U JPH044420U (zh) 1990-04-23 1990-04-23

Publications (1)

Publication Number Publication Date
JPH044420U true JPH044420U (zh) 1992-01-16

Family

ID=31555673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4333990U Pending JPH044420U (zh) 1990-04-23 1990-04-23

Country Status (1)

Country Link
JP (1) JPH044420U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005252538A (ja) * 2004-03-03 2005-09-15 Alpine Electronics Inc 音声明瞭度改善装置及び音声明瞭度改善方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848102A (zh) * 1971-10-20 1973-07-07
JPS4940048A (zh) * 1972-08-16 1974-04-15
JPS4927318B1 (zh) * 1969-04-04 1974-07-16
JPS5011515A (zh) * 1973-05-30 1975-02-06

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927318B1 (zh) * 1969-04-04 1974-07-16
JPS4848102A (zh) * 1971-10-20 1973-07-07
JPS4940048A (zh) * 1972-08-16 1974-04-15
JPS5011515A (zh) * 1973-05-30 1975-02-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005252538A (ja) * 2004-03-03 2005-09-15 Alpine Electronics Inc 音声明瞭度改善装置及び音声明瞭度改善方法

Similar Documents

Publication Publication Date Title
JPH044420U (zh)
JPH0369996U (zh)
JPH01143594U (zh)
JPS6085419U (ja) スピ−カ出力の自動調整装置
JPH0394865U (zh)
JPH02108425U (zh)
JPH0457994U (zh)
JPS6440992U (zh)
JPH0392900U (zh)
JPH01143593U (zh)
JPS60145726U (ja) 制御装置
JPH02150900U (zh)
JPS6226969U (zh)
JPS60153019U (ja) 音量制御装置
JPS60155214U (ja) 音量制御装置
JPH0338915U (zh)
JPS6129522U (ja) 音響伝送系のミユ−テイング回路
JPS6440999U (zh)
JPH02817U (zh)
JPH0485500U (zh)
JPS6310622U (zh)
JPH0332893U (zh)
JPH0469996U (zh)
JPH0321323U (zh)
JPS59157356U (ja) 受話器用音量調整装置