JPH0316778U - - Google Patents
Info
- Publication number
- JPH0316778U JPH0316778U JP7747689U JP7747689U JPH0316778U JP H0316778 U JPH0316778 U JP H0316778U JP 7747689 U JP7747689 U JP 7747689U JP 7747689 U JP7747689 U JP 7747689U JP H0316778 U JPH0316778 U JP H0316778U
- Authority
- JP
- Japan
- Prior art keywords
- vertical synchronization
- synchronization signal
- circuit
- reference vertical
- detection circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案の静止画記録再生装置の一実
施例の構成を示すブロツク図、第２図は従来の静
止画記録再生装置の一例の構成を示すブロツク図
、第３図乃び第４図は第２図の例の動作を説明す
るタイミングチヤート、第５図及び第６図は第１
図の実施例の動作を説明するタイミングチヤート
である。
１……Ａ／Ｄ変換器、２……メモリ、３……Ｄ
／Ａ変換器、４……垂直同期分離回路、５……リ
セツトパルス発生回路、６……カウンタ、７……
検出回路、８……リセツトパルス発生回路、９…
…アドレスカウンタ、１０……リセツトパルス発
生回路、１１……検出回路、１２……パルス発生
回路、２１……フレームパルス発生回路、２２…
…基準垂直同期信号発生回路、２３……検出回路
、２４……リセツトパルス発生回路、２５……フ
イールド検出回路、２６……パルス発生回路、２
７……検出回路、２８……リセツトパルス発生回
路、２９……パルス発生回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the still image recording and reproducing device of this invention, FIG. 2 is a block diagram showing the configuration of an example of the conventional still image recording and reproducing device, and FIGS. The figure is a timing chart explaining the operation of the example in Figure 2, and Figures 5 and 6 are timing charts for the example in Figure 1.
3 is a timing chart illustrating the operation of the illustrated embodiment. 1...A/D converter, 2...memory, 3...D
/A converter, 4... Vertical synchronization separation circuit, 5... Reset pulse generation circuit, 6... Counter, 7...
Detection circuit, 8... Reset pulse generation circuit, 9...
...Address counter, 10...Reset pulse generation circuit, 11...Detection circuit, 12...Pulse generation circuit, 21...Frame pulse generation circuit, 22...
... Reference vertical synchronization signal generation circuit, 23 ... Detection circuit, 24 ... Reset pulse generation circuit, 25 ... Field detection circuit, 26 ... Pulse generation circuit, 2
7...detection circuit, 28...reset pulse generation circuit, 29...pulse generation circuit.
Claims (1)
る垂直同期分離回路と、 前記垂直同期分離回路の出力にフレーム単位で
同期した基準垂直同期信号を発生する基準垂直同
期信号発生回路と、 所定のクロツクをカウントし、前記基準垂直同
期信号発生回路が出力する基準垂直同期信号に同
期してリセツトされるカウンタと、 前記カウンタのカウント値が予め設定した所定
の値に達したことを検出する検出回路と、 前記検出回路の出力に対応して、映像信号の書
き込み又は読み出しが制御されるメモリとを備え
る静止画記録再生装置。[Claims for Utility Model Registration] A vertical synchronization separation circuit that separates a vertical synchronization signal from an input video signal, and a reference vertical synchronization signal that generates a reference vertical synchronization signal that is synchronized frame by frame with the output of the vertical synchronization separation circuit. a counter that counts a predetermined clock and is reset in synchronization with a reference vertical synchronization signal outputted by the reference vertical synchronization signal generation circuit; What is claimed is: 1. A still image recording and reproducing device, comprising: a detection circuit that detects this; and a memory in which writing or reading of a video signal is controlled in accordance with the output of the detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7747689U JPH0316778U (en) | 1989-06-30 | 1989-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7747689U JPH0316778U (en) | 1989-06-30 | 1989-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0316778U true JPH0316778U (en) | 1991-02-19 |
Family
ID=31619902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7747689U Pending JPH0316778U (en) | 1989-06-30 | 1989-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316778U (en) |
-
1989
- 1989-06-30 JP JP7747689U patent/JPH0316778U/ja active Pending
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