JPH0161685U - - Google Patents
Info
- Publication number
- JPH0161685U JPH0161685U JP15637087U JP15637087U JPH0161685U JP H0161685 U JPH0161685 U JP H0161685U JP 15637087 U JP15637087 U JP 15637087U JP 15637087 U JP15637087 U JP 15637087U JP H0161685 U JPH0161685 U JP H0161685U
- Authority
- JP
- Japan
- Prior art keywords
- address
- ram
- predetermined
- image display
- signals
- 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.)
- Granted
Links
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案の実施例の構成図、第２図は本
実施例のＲＡＭのアドレスマツプ図、第３図は本
実施例の海底固定拡大メモリ拡大図、第４図は本
実施例の表示例を示す図、第５図は従来技術の海
底固定拡大像表示をするカラー魚群探知機のブロ
ツク図である。
１……送信器、２……送受波器、３……受信器
、４……Ａ／Ｄ変換器、５……海底検出回路、６
……ＤＭＡＣ、７……タイマー、８……ＣＰＵ、
９……ＲＯＭ、１０……ＲＡＭ、１１……アドレ
ス変換器、１２……ＣＲＴコントローラ、１３…
…画像メモリ、１４……色合成回路、１５……偏
向回路、１６……ＣＲＴ、１７……バツフアメモ
リ、１８……カウンタ。
Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is an address map diagram of the RAM of this embodiment, Fig. 3 is an enlarged view of the submarine fixed expansion memory of this embodiment, and Fig. 4 is an enlarged diagram of the submarine fixed expansion memory of this embodiment. FIG. 5, which shows an example of a display, is a block diagram of a conventional color fish finder that displays a fixed enlarged image of the seabed. 1... Transmitter, 2... Transmitter/receiver, 3... Receiver, 4... A/D converter, 5... Seabed detection circuit, 6
...DMAC, 7...Timer, 8...CPU,
9...ROM, 10...RAM, 11...address converter, 12...CRT controller, 13...
...Image memory, 14...Color composition circuit, 15...Deflection circuit, 16...CRT, 17...Buffer memory, 18...Counter.
Claims (1)
受信信号をデジタル化するＡ／Ｄ変換器と海底信
号を検出する海底検出回路と所定のクロツクパル
スを出力するタイマーとＣＲＴ上に画像を表示す
る画像表示器と前記各ユニツトを制御するＣＰＵ
と画像信号を記憶し読み出すＲＡＭとを有する魚
群探知機において、前記タイマーからのクロツク
パルスを入力するごとに前記ＲＡＭの特定のアド
レスエリアの第１の所定のアドレスから順次に信
号を転送させるダイレクトメモリアクセスコント
ローラ（ＤＭＡＣ）と； 前記ＲＡＭの特定アド
レスエリアの第２の所定のアドレスの次のアドレ
スになると特定アドレスエリアの第１の所定のア
ドレスに移すようにアドレス変換するアドレス変
換回路と； を具備することを特徴とする海底固
定拡大像表示装置。 A transducer and receiver that transmit and receive ultrasonic waves underwater, an A/D converter that digitizes the received signal, a seabed detection circuit that detects seabed signals, a timer that outputs a predetermined clock pulse, and an image displayed on a CRT. an image display device that controls the image display, and a CPU that controls each of the units.
and a RAM for storing and reading image signals, the direct memory access for sequentially transferring signals from a first predetermined address in a specific address area of the RAM each time a clock pulse from the timer is input. a controller (DMAC); and an address translation circuit that converts an address so that when the address next to the second predetermined address in the specific address area of the RAM is reached, the address is moved to the first predetermined address in the specific address area; A submarine fixed enlarged image display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15637087U JPH0524231Y2 (en) | 1987-10-13 | 1987-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15637087U JPH0524231Y2 (en) | 1987-10-13 | 1987-10-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0161685U true JPH0161685U (en) | 1989-04-19 |
| JPH0524231Y2 JPH0524231Y2 (en) | 1993-06-21 |
Family
ID=31434849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15637087U Expired - Lifetime JPH0524231Y2 (en) | 1987-10-13 | 1987-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524231Y2 (en) |
-
1987
- 1987-10-13 JP JP15637087U patent/JPH0524231Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524231Y2 (en) | 1993-06-21 |
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