JPH01110576U - - Google Patents
Info
- Publication number
- JPH01110576U JPH01110576U JP567388U JP567388U JPH01110576U JP H01110576 U JPH01110576 U JP H01110576U JP 567388 U JP567388 U JP 567388U JP 567388 U JP567388 U JP 567388U JP H01110576 U JPH01110576 U JP H01110576U
- Authority
- JP
- Japan
- Prior art keywords
- gate circuit
- controlled oscillator
- voltage controlled
- output
- television 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
- 230000008929 regeneration Effects 0.000 claims 2
- 238000011069 regeneration method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の実施例１を示すブロツク図、
第２図は動作説明図であつて、ａは入力テレビジ
ヨン信号を示す図、ｂは１０Ｈ又は１８Ｈの信号
を示す図、ｃは１８Ｈに混入する１７Ｈのゴース
ト波形信号を示す図、ｄはゴーストのある時の１
８Ｈの信号の一例を示す図、第３図は本考案の実
施例２を示すブロツク図である。
１……位相比較器、２……ゲート回路、３……
低域通過フイルタ、４……ＶＣＯ、３０……Ｎて
い倍器とＭ分周器を組み合わせた回路。
FIG. 1 is a block diagram showing Embodiment 1 of the present invention;
FIG. 2 is an explanatory diagram of the operation, where a shows the input television signal, b shows the 10H or 18H signal, c shows the 17H ghost waveform signal mixed into 18H, and d shows the ghost. 1 at a time
FIG. 3 is a block diagram showing a second embodiment of the present invention. 1... Phase comparator, 2... Gate circuit, 3...
A circuit that combines a low-pass filter, 4...VCO, 30...N multiplier and M frequency divider.
Claims (1)
信号と入力テレビジヨン信号の位相比較を行う位
相比較器と、前記位相比較器の出力をカラーバー
スト期間のみ通すゲート回路と、前記ゲート回路
出力を入力とし、前記電圧制御発振器に制御電圧
を出力する低域通過フイルタを有するテレビジヨ
ン信号副搬送波再生回路において、前記ゲート回
路は各フイールドの１０〜１３Ｈのカラーバース
ト期間のみ信号を通過させる機能を備えたことを
特徴とするテレビジヨン信号副搬送波再生回路。 a voltage controlled oscillator; a phase comparator that compares the phases of the output signal of the voltage controlled oscillator and the input television signal; a gate circuit that passes the output of the phase comparator only during a color burst period; and a gate circuit that receives the output of the gate circuit as an input. , in the television signal subcarrier regeneration circuit having a low-pass filter that outputs a control voltage to the voltage controlled oscillator, the gate circuit has a function of passing the signal only during a color burst period of 10 to 13H of each field. A television signal subcarrier regeneration circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP567388U JPH01110576U (en) | 1988-01-20 | 1988-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP567388U JPH01110576U (en) | 1988-01-20 | 1988-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01110576U true JPH01110576U (en) | 1989-07-26 |
Family
ID=31209254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP567388U Pending JPH01110576U (en) | 1988-01-20 | 1988-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01110576U (en) |
-
1988
- 1988-01-20 JP JP567388U patent/JPH01110576U/ja active Pending
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