JPS63260309A - 可変減衰回路 - Google Patents

可変減衰回路

Info

Publication number
JPS63260309A
JPS63260309A JP62095574A JP9557487A JPS63260309A JP S63260309 A JPS63260309 A JP S63260309A JP 62095574 A JP62095574 A JP 62095574A JP 9557487 A JP9557487 A JP 9557487A JP S63260309 A JPS63260309 A JP S63260309A
Authority
JP
Japan
Prior art keywords
circuit
output signal
transistor
variable impedance
capacitor
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.)
Granted
Application number
JP62095574A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0519325B2 (enrdf_load_stackoverflow
Inventor
Masami Kato
政美 加藤
Masaru Horikoshi
勝 堀越
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP62095574A priority Critical patent/JPS63260309A/ja
Priority to US07/180,483 priority patent/US4982435A/en
Priority to DE3850289T priority patent/DE3850289T2/de
Priority to EP88105872A priority patent/EP0287057B1/en
Priority to CA000564288A priority patent/CA1305432C/en
Priority to KR88004342A priority patent/KR970004616B1/ko
Publication of JPS63260309A publication Critical patent/JPS63260309A/ja
Publication of JPH0519325B2 publication Critical patent/JPH0519325B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Attenuators (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP62095574A 1987-04-17 1987-04-17 可変減衰回路 Granted JPS63260309A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP62095574A JPS63260309A (ja) 1987-04-17 1987-04-17 可変減衰回路
US07/180,483 US4982435A (en) 1987-04-17 1988-04-12 Automatic loudness control circuit
DE3850289T DE3850289T2 (de) 1987-04-17 1988-04-13 Automatische Lautstärkeregelungsschaltung.
EP88105872A EP0287057B1 (en) 1987-04-17 1988-04-13 Automatic loudness control circuit
CA000564288A CA1305432C (en) 1987-04-17 1988-04-15 Automatic loudness control circuit
KR88004342A KR970004616B1 (en) 1987-04-17 1988-04-16 Automatic loudness control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62095574A JPS63260309A (ja) 1987-04-17 1987-04-17 可変減衰回路

Publications (2)

Publication Number Publication Date
JPS63260309A true JPS63260309A (ja) 1988-10-27
JPH0519325B2 JPH0519325B2 (enrdf_load_stackoverflow) 1993-03-16

Family

ID=14141360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62095574A Granted JPS63260309A (ja) 1987-04-17 1987-04-17 可変減衰回路

Country Status (1)

Country Link
JP (1) JPS63260309A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6181213U (enrdf_load_stackoverflow) * 1984-10-31 1986-05-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6181213U (enrdf_load_stackoverflow) * 1984-10-31 1986-05-29

Also Published As

Publication number Publication date
JPH0519325B2 (enrdf_load_stackoverflow) 1993-03-16

Similar Documents

Publication Publication Date Title
JPH0313762B2 (enrdf_load_stackoverflow)
CA1096036A (en) Dynamic transducer biasing signal amplifying circuitry
US4216434A (en) Variable gain alternating voltage amplifier
JPS5840367B2 (ja) オ−ディオ制御回路
US2866859A (en) Audio amplifier bridge input circuits
EP0095774B1 (en) A switching circuit operable as an amplifier and a muting circuit
KR860000440B1 (ko) 신호레벨제어회로
JPS63260309A (ja) 可変減衰回路
JPS631768B2 (enrdf_load_stackoverflow)
US4013972A (en) Amplifier with gain control means
US4021610A (en) Control circuit for a matrixed four channel audio reproducing system
JPS63228810A (ja) 自動ラウドネス制御回路
JP2594642B2 (ja) 増幅回路
JP3014557B2 (ja) バッテリー内蔵オーディオ装置及びオーディオ信号増幅回路
JPH0846460A (ja) 増幅回路
US4088902A (en) Channel coupling
JPH0671183B2 (ja) 自動ラウドネス制御回路
JPH0746763B2 (ja) 多段信号伝送装置
JPS6259928B2 (enrdf_load_stackoverflow)
JP3249382B2 (ja) 電子ボリューム回路
JP3118040B2 (ja) ラウドネスコントロール回路
JPS57199396A (en) Speaker input controlling circuit
JPH077300U (ja) オーディオ回路
KR840001205B1 (ko) 토온콘트룰 회로
JPS6020609A (ja) 増幅器

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080316

Year of fee payment: 15