JPH02138986U - - Google Patents
Info
- Publication number
- JPH02138986U JPH02138986U JP4760489U JP4760489U JPH02138986U JP H02138986 U JPH02138986 U JP H02138986U JP 4760489 U JP4760489 U JP 4760489U JP 4760489 U JP4760489 U JP 4760489U JP H02138986 U JPH02138986 U JP H02138986U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color
- converting
- scanning line
- video 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
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 5
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Color Television Systems (AREA)
- Digital Magnetic Recording (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図および第３図はその説明のための図である。
１……磁気テープ、２……磁気ヘツド、４……
ハイパスフイルタ、５……輝度信号処理回路、６
，２２……Ａ／Ｄ変換器、７，２５……メモリ回
路、８……同期分離回路、９，１２，２７……Ｐ
ＬＬ回路、１０，１３……カウンタ、１１，１４
……メモリ制御回路、１５……同期信号の挿入回
路、１６，３１……Ｄ／Ａ変換器、１７，２２０
……ローパスフイルタ、１８……トラツプ回路、
１９……加算器、２１……色信号処理回路、２３
……デコーダ、２４……マルチプレクサ、２６…
…バーストゲート回路、２８……デマルチプレク
サ、２９……カラーバーストの挿入回路、３０…
…エンコーダ、３２……発振器、３３……バンド
パスフイルタ、３４……出力端子。
FIG. 1 is a block diagram showing an embodiment of this invention, and FIGS. 2 and 3 are diagrams for explaining the same. 1...Magnetic tape, 2...Magnetic head, 4...
High pass filter, 5... Luminance signal processing circuit, 6
, 22...A/D converter, 7, 25...Memory circuit, 8...Synchronization separation circuit, 9, 12, 27...P
LL circuit, 10, 13... Counter, 11, 14
...Memory control circuit, 15...Synchronization signal insertion circuit, 16,31...D/A converter, 17,220
...Low pass filter, 18...Trap circuit,
19... Adder, 21... Color signal processing circuit, 23
...Decoder, 24...Multiplexer, 26...
...Burst gate circuit, 28...Demultiplexer, 29...Color burst insertion circuit, 30...
... Encoder, 32 ... Oscillator, 33 ... Band pass filter, 34 ... Output terminal.
Claims (1)
から他方にカラー映像信号の方式を変換するもの
において、 上記一方の方式のカラー映像信号を輝度信号お
よび色信号に分離する分離手段と、 この分離手段で分離される輝度信号の走査線数
を上記他方の方式に変換する画像メモリを有して
なる第１の走査線変換手段と、 この第１の走査線変換手段の出力信号に上記他
方の方式の同期信号を挿入する第１の挿入回路と
、 上記分離手段で分離される色信号を復調して色
差信号を得るデコーダと、 このデコーダより出力される色差信号の走査線
数を上記他方の方式に変換する画像メモリを有し
てなる第２の走査線変換手段と、 この第２の走査線変換手段の出力信号に上記他
方の方式のカラーバーストを色差信号の形式で挿
入する第２の挿入回路と、 この第２の挿入回路の出力信号を変調して上記
他方の方式の色信号を形成するエンコーダと、 上記第１の挿入回路の出力信号および上記エン
コーダの出力信号を加算して上記他方の方式のカ
ラー映像信号を得る加算手段とよりなることを特
徴とするカラー映像信号の方式変換装置。[Claims for Utility Model Registration] In a system for converting a color video signal from either the NTSC system or the PAL system to the other, separation means for separating the color video signal of one of the systems into a luminance signal and a color signal. and a first scanning line converting means having an image memory for converting the number of scanning lines of the luminance signal separated by the separating means into the other method, and an output signal of the first scanning line converting means. a first insertion circuit for inserting a synchronization signal of the other method, a decoder for demodulating the color signal separated by the separation means to obtain a color difference signal, and the number of scanning lines of the color difference signal output from the decoder. a second scanning line converting means having an image memory for converting the image into the other method, and inserting a color burst of the other method into the output signal of the second scanning line converter in the form of a color difference signal. a second insertion circuit that modulates the output signal of the second insertion circuit to form a color signal of the other method; A color video signal format conversion device comprising: an adding means for adding and obtaining a color video signal of the other format.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760489U JPH02138986U (en) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760489U JPH02138986U (en) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02138986U true JPH02138986U (en) | 1990-11-20 |
Family
ID=31563678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4760489U Pending JPH02138986U (en) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02138986U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6066595A (en) * | 1983-09-21 | 1985-04-16 | Nec Home Electronics Ltd | Television signal converter having outline emphasizing circuit |
| JPS63269880A (en) * | 1987-04-28 | 1988-11-08 | Mitsubishi Electric Corp | Compatible coding device for different video system |
-
1989
- 1989-04-21 JP JP4760489U patent/JPH02138986U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6066595A (en) * | 1983-09-21 | 1985-04-16 | Nec Home Electronics Ltd | Television signal converter having outline emphasizing circuit |
| JPS63269880A (en) * | 1987-04-28 | 1988-11-08 | Mitsubishi Electric Corp | Compatible coding device for different video system |
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