JPS6482813A - Agc device - Google Patents
Agc deviceInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165412A (en) * | 1980-05-23 | 1981-12-19 | Nec Corp | Voice amplitude limiting amplifier |
-
1987
- 1987-09-25 JP JP23901987A patent/JPS6482813A/en active Pending
Patent Citations (1)
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)
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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