JPS62152565U - - Google Patents
Info
- Publication number
- JPS62152565U JPS62152565U JP4117786U JP4117786U JPS62152565U JP S62152565 U JPS62152565 U JP S62152565U JP 4117786 U JP4117786 U JP 4117786U JP 4117786 U JP4117786 U JP 4117786U JP S62152565 U JPS62152565 U JP S62152565U
- Authority
- JP
- Japan
- Prior art keywords
- agc
- circuit
- electric field
- field strength
- agc voltage
- 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
Links
- 230000005684 electric field Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は本考案の一実施例の概略構成を示すブ
ロツク図、第２図はその要部の具体的構成を示す
回路図、第３図は入力電界強度対ＲＦ・ＡＧＣ電
圧特性を示す特性図である。
６：ＲＦ・ＡＧＣ電圧遅延回路、８：電界強度
検出回路、９：電圧切換回路。
Fig. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention, Fig. 2 is a circuit diagram showing a specific structure of its main parts, and Fig. 3 is a characteristic showing input electric field strength versus RF/AGC voltage characteristics. It is a diagram. 6: RF/AGC voltage delay circuit, 8: Electric field strength detection circuit, 9: Voltage switching circuit.
Claims (1)
圧遅延回路を介してチユーナに印加するようにし
たＡＧＣ回路であつて、前記チユーナに印加され
るＲＦ・ＡＧＣ電圧を得て入力電界強度を検出す
る検出回路と、この検出回路の出力に応じて前記
遅延回路の基準電圧を変化させる切換回路とを設
け、上記基準電圧を変化させることによつて入力
電界強度に対するＲＦ・ＡＧＣ電圧変化の勾配を
可変するようにしたテレビジヨン受信機のＡＧＣ
回路。 An AGC circuit that applies an AGC voltage applied to an IF amplification stage to a tuner via an AGC voltage delay circuit, and a detection device that obtains the RF/AGC voltage applied to the tuner and detects the input electric field strength. and a switching circuit that changes the reference voltage of the delay circuit according to the output of the detection circuit, and by changing the reference voltage, the slope of the RF/AGC voltage change with respect to the input electric field strength is varied. AGC of a television receiver
circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986041177U JPH0516789Y2 (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986041177U JPH0516789Y2 (en) | 1986-03-20 | 1986-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152565U true JPS62152565U (en) | 1987-09-28 |
| JPH0516789Y2 JPH0516789Y2 (en) | 1993-05-06 |
Family
ID=30855935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986041177U Expired - Lifetime JPH0516789Y2 (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516789Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154376A (en) * | 1984-12-27 | 1986-07-14 | Toshiba Corp | Automatic gain control circuit |
-
1986
- 1986-03-20 JP JP1986041177U patent/JPH0516789Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61154376A (en) * | 1984-12-27 | 1986-07-14 | Toshiba Corp | Automatic gain control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516789Y2 (en) | 1993-05-06 |
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