JPS63136475U - - Google Patents
Info
- Publication number
- JPS63136475U JPS63136475U JP2697287U JP2697287U JPS63136475U JP S63136475 U JPS63136475 U JP S63136475U JP 2697287 U JP2697287 U JP 2697287U JP 2697287 U JP2697287 U JP 2697287U JP S63136475 U JPS63136475 U JP S63136475U
- Authority
- JP
- Japan
- Prior art keywords
- luminance signal
- signal
- delayed pulse
- horizontal synchronizing
- synchronizing 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
- 230000003111 delayed effect Effects 0.000 claims 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第1図、第6図は本考案実施例の回路図、第2
図はその波形図、第3図、第4図は夫々プリエン
フアシス、デイエンフアシス回路の回路図、第5
図は従来例の波形図である。
22……遅延回路、Q2……トランジスタ。
Figures 1 and 6 are circuit diagrams of the embodiment of the present invention;
The figure is a waveform diagram, Figures 3 and 4 are circuit diagrams of the pre-emphasis and de-emphasis circuits, respectively, and Figure 5 is a circuit diagram of the pre-emphasis and de-emphasis circuits.
The figure is a waveform diagram of a conventional example. 22...delay circuit, Q2 ...transistor.
Claims (1)
して遅延パルスを作成する手段と、この遅延パル
スに基づき再生輝度信号の水平同期信号の立上が
り付近におけるデイエンフアシス量を他の期間よ
りも多く設定するか又は、前記水平同期信号のバ
ツクポーチ部分の一部を所定の直流レベルに置き
変える手段とよりなる輝度信号処理装置。 means for creating a delayed pulse by delaying a horizontal synchronizing signal separated from a reproduced luminance signal, and setting a de-emphasis amount near the rising edge of the horizontal synchronizing signal of the reproduced luminance signal to be larger than other periods based on the delayed pulse, or , a luminance signal processing device comprising means for replacing a part of the back porch portion of the horizontal synchronization signal with a predetermined DC level.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2697287U JPS63136475U (en) | 1987-02-25 | 1987-02-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2697287U JPS63136475U (en) | 1987-02-25 | 1987-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63136475U true JPS63136475U (en) | 1988-09-07 |
Family
ID=30828570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2697287U Pending JPS63136475U (en) | 1987-02-25 | 1987-02-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63136475U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5526784A (en) * | 1978-08-17 | 1980-02-26 | Toshiba Corp | Video amplifier |
JPS60705B2 (en) * | 1980-04-30 | 1985-01-09 | 富士電機株式会社 | Received data storage device for computer connection |
-
1987
- 1987-02-25 JP JP2697287U patent/JPS63136475U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5526784A (en) * | 1978-08-17 | 1980-02-26 | Toshiba Corp | Video amplifier |
JPS60705B2 (en) * | 1980-04-30 | 1985-01-09 | 富士電機株式会社 | Received data storage device for computer connection |
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