JPS6482813A - Agc device - Google Patents

Agc device

Info

Publication number
JPS6482813A
JPS6482813A JP23901987A JP23901987A JPS6482813A JP S6482813 A JPS6482813 A JP S6482813A JP 23901987 A JP23901987 A JP 23901987A JP 23901987 A JP23901987 A JP 23901987A JP S6482813 A JPS6482813 A JP S6482813A
Authority
JP
Japan
Prior art keywords
frequency
low
area frequency
filter
agc amplifier
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
JP23901987A
Other languages
Japanese (ja)
Inventor
Sachiko Houkan
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP23901987A priority Critical patent/JPS6482813A/en
Publication of JPS6482813A publication Critical patent/JPS6482813A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To make the maximum output after a gain control larger than the time of a low area frequency in call of a high area frequency by providing a filter having a different frequency characteristic and an attenuator at a feedback to an AGC amplifier, changing a voltage value with a frequency band and executing the feedback to the AGC amplifier. CONSTITUTION:The low pass filter of a filter 6 and the high pass filter of a filter 7 are provided on the way of a feedback to an AGC amplifier 1. By classifying a low area frequency and a high area frequency, only the voltage of a high area frequency is attenuated by an attenuator 5. For such a reason, even in the same input voltage, the value of the voltage feed back to the AGC amplifier 1 can be changed by the high area and low area frequencies. Consequently, at the low area frequency in which the distortion is easy to ring in one's years, the output is suppressed to low, and at the high area frequency in which the distortion is brightly felt, the output can be generated to high.
JP23901987A 1987-09-25 1987-09-25 Agc device Pending JPS6482813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23901987A JPS6482813A (en) 1987-09-25 1987-09-25 Agc device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23901987A JPS6482813A (en) 1987-09-25 1987-09-25 Agc device

Publications (1)

Publication Number Publication Date
JPS6482813A true JPS6482813A (en) 1989-03-28

Family

ID=17038683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23901987A Pending JPS6482813A (en) 1987-09-25 1987-09-25 Agc device

Country Status (1)

Country Link
JP (1) JPS6482813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001094367A (en) * 1999-09-20 2001-04-06 Matsushita Electric Ind Co Ltd Saturation output variable amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165412A (en) * 1980-05-23 1981-12-19 Nec Corp Voice amplitude limiting amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165412A (en) * 1980-05-23 1981-12-19 Nec Corp Voice amplitude limiting amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001094367A (en) * 1999-09-20 2001-04-06 Matsushita Electric Ind Co Ltd Saturation output variable amplifier

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