JPH0358043U - - Google Patents
Info
- Publication number
- JPH0358043U JPH0358043U JP11896989U JP11896989U JPH0358043U JP H0358043 U JPH0358043 U JP H0358043U JP 11896989 U JP11896989 U JP 11896989U JP 11896989 U JP11896989 U JP 11896989U JP H0358043 U JPH0358043 U JP H0358043U
- Authority
- JP
- Japan
- Prior art keywords
- video amplifier
- level
- output
- video
- control signal
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Noise Elimination (AREA)
Description
第１図は本考案一実施例による受信装置のブロ
ツク構成図、第２図は従来例による受信装置のブ
ロツク構成図である。
２……高周波増幅器、３……周波数混合器、４
……局部発振器、５……ＡＧＣ増幅器、７……復
調器、８……第１の映像増幅器、９……第２の映
像増幅器、１２……帯域フイルタ、１３……レベ
ル検出器、１４……可変抵抗素子。
FIG. 1 is a block diagram of a receiving apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional receiving apparatus. 2... High frequency amplifier, 3... Frequency mixer, 4
... Local oscillator, 5 ... AGC amplifier, 7 ... Demodulator, 8 ... First video amplifier, 9 ... Second video amplifier, 12 ... Bandwidth filter, 13 ... Level detector, 14 ... ...variable resistance element.
Claims (1)
像出力に接続され特定の周波数を通過させるフイ
ルタと、該フイルタの出力に接続されて信号レベ
ルを検出するレベル検出器とを有し、前記レベル
検出器は、その検出した信号レベルに従つて制御
信号を出し、この制御信号により前記第１の映像
増幅器と同じ入力端に接続された第２の映像増幅
器の可変抵抗素子を制御して、該第２の映像増幅
器の出力レベルを一定値以下に抑えるようにした
ことを特徴とする受信装置。 a first video amplifier; a filter connected to the video output of the first video amplifier to pass a specific frequency; and a level detector connected to the output of the filter to detect a signal level; The level detector outputs a control signal according to the detected signal level, and the control signal controls a variable resistance element of a second video amplifier connected to the same input terminal as the first video amplifier, A receiving device characterized in that the output level of the second video amplifier is suppressed below a certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11896989U JPH0358043U (en) | 1989-10-11 | 1989-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11896989U JPH0358043U (en) | 1989-10-11 | 1989-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0358043U true JPH0358043U (en) | 1991-06-05 |
Family
ID=31667108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11896989U Pending JPH0358043U (en) | 1989-10-11 | 1989-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0358043U (en) |
-
1989
- 1989-10-11 JP JP11896989U patent/JPH0358043U/ja active Pending
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