JPS5621481A - Automatic gain control circuit - Google Patents
Automatic gain control circuitInfo
- Publication number
- JPS5621481A JPS5621481A JP9763179A JP9763179A JPS5621481A JP S5621481 A JPS5621481 A JP S5621481A JP 9763179 A JP9763179 A JP 9763179A JP 9763179 A JP9763179 A JP 9763179A JP S5621481 A JPS5621481 A JP S5621481A
- Authority
- JP
- Japan
- Prior art keywords
- carrier signal
- sampling
- gain control
- shaping circuit
- pulse
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE:To make always the gain control voltage fixed according to the input voltage, by sampling the carrier signal by sampling pulses which hold always a fixed relation to the phase of the carrier signal. CONSTITUTION:Now, when the carrier signal is input to PLL15, the output wave having a frequency and a phase equal to those of the input signal is obtained from the output of PLL15. When pulse shaping circuit 17 is driven by this output wave, pulse shaping circuit 17 is triggerred by a prescribed level of the output wave to obtained. If pulse width shaping circuit 20 is triggerred by this trigger pulse, sampling pulses having a prescribed width required for sampling of the carrier signal are obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9763179A JPS5621481A (en) | 1979-07-31 | 1979-07-31 | Automatic gain control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9763179A JPS5621481A (en) | 1979-07-31 | 1979-07-31 | Automatic gain control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5621481A true JPS5621481A (en) | 1981-02-27 |
Family
ID=14197505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9763179A Pending JPS5621481A (en) | 1979-07-31 | 1979-07-31 | Automatic gain control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621481A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5853306A (en) * | 1981-09-28 | 1983-03-29 | Nippon Kokan Kk <Nkk> | Rolling method for thick plate |
JPS60166104A (en) * | 1984-02-09 | 1985-08-29 | Keiichiro Yoshida | Forming method of ribbion wire by rolling |
-
1979
- 1979-07-31 JP JP9763179A patent/JPS5621481A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5853306A (en) * | 1981-09-28 | 1983-03-29 | Nippon Kokan Kk <Nkk> | Rolling method for thick plate |
JPS60166104A (en) * | 1984-02-09 | 1985-08-29 | Keiichiro Yoshida | Forming method of ribbion wire by rolling |
JPH0453601B2 (en) * | 1984-02-09 | 1992-08-27 | Keiichiro Yoshida |
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