JPS59118317U - automatic gain control circuit - Google Patents
automatic gain control circuitInfo
- Publication number
- JPS59118317U JPS59118317U JP931283U JP931283U JPS59118317U JP S59118317 U JPS59118317 U JP S59118317U JP 931283 U JP931283 U JP 931283U JP 931283 U JP931283 U JP 931283U JP S59118317 U JPS59118317 U JP S59118317U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- automatic gain
- gain control
- output
- control circuit
- 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)
- Circuits Of Receivers In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の一実施例を示すブロック回路図である。
１・・・受信空中線、２・・・増幅器、３・・・復調器
、４・・・標本化回路、５・・・量子化回路、６・・・
判定回路、７・・・ＡＧＣ電圧発生回路。The drawing is a block circuit diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Receiving antenna, 2... Amplifier, 3... Demodulator, 4... Sampling circuit, 5... Quantization circuit, 6...
Judgment circuit, 7... AGC voltage generation circuit.
Claims (2)
路と、該標本化回路の出力を所定のスレッショルドレベ
ルにて２値信号に量子化する回路と、該量子化回路の出
力が所定値範囲にあるか否かの判定を行う判定回路と、
該判定回路からのＡＧＣ制御電圧信号に応じて増幅器の
増幅度を制御するためのＡＧＣ電圧を発生するＡＧＣ電
圧発生回路とを備え、前記復調出力をディジタル信号に
変換したディジタル信号を利用して前記増幅器の増幅度
を制御することを特徴とする受信機の自動利得制御回路
。(1) A circuit that samples the demodulated output of the receiver at regular time intervals, a circuit that quantizes the output of the sampling circuit into a binary signal at a predetermined threshold level, and a circuit that samples the output of the quantization circuit at a predetermined threshold level. a determination circuit that determines whether the value is within the value range;
and an AGC voltage generation circuit that generates an AGC voltage for controlling the amplification degree of the amplifier according to the AGC control voltage signal from the determination circuit, and uses a digital signal obtained by converting the demodulated output into a digital signal to generate the An automatic gain control circuit for a receiver, characterized by controlling the amplification degree of an amplifier.
前記判定回路において判定する２値信号の数を変更する
ことによって容易に時定数の変更が可能であることを特
徴とする自動利得制御回路。(2) In the circuit set forth in paragraph 1 of the claims for utility model registration,
An automatic gain control circuit characterized in that the time constant can be easily changed by changing the number of binary signals judged in the judgment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP931283U JPS59118317U (en) | 1983-01-26 | 1983-01-26 | automatic gain control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP931283U JPS59118317U (en) | 1983-01-26 | 1983-01-26 | automatic gain control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59118317U true JPS59118317U (en) | 1984-08-09 |
Family
ID=30140776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP931283U Pending JPS59118317U (en) | 1983-01-26 | 1983-01-26 | automatic gain control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59118317U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5367334A (en) * | 1976-11-26 | 1978-06-15 | Sharp Corp | High-speed writing type digital automatic gain control circuit and itsdriving system |
| JPS5532216A (en) * | 1978-08-23 | 1980-03-06 | Matsushita Electric Ind Co Ltd | Automatic recording level setter |
-
1983
- 1983-01-26 JP JP931283U patent/JPS59118317U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5367334A (en) * | 1976-11-26 | 1978-06-15 | Sharp Corp | High-speed writing type digital automatic gain control circuit and itsdriving system |
| JPS5532216A (en) * | 1978-08-23 | 1980-03-06 | Matsushita Electric Ind Co Ltd | Automatic recording level setter |
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