JPS5880209U - Ultrasonic tomography device - Google Patents
Ultrasonic tomography deviceInfo
- Publication number
- JPS5880209U JPS5880209U JP17464381U JP17464381U JPS5880209U JP S5880209 U JPS5880209 U JP S5880209U JP 17464381 U JP17464381 U JP 17464381U JP 17464381 U JP17464381 U JP 17464381U JP S5880209 U JPS5880209 U JP S5880209U
- Authority
- JP
- Japan
- Prior art keywords
- scanning position
- ultrasonic tomography
- standard
- ultrasonic
- scanning
- 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
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は標準ＴＶの画素の配列を示す図、第２図は従来
装置におけるデータのサンプリング点を示す図、第゛３
図は本考案による超音波断層装置の一実施例を示すブロ
ック図、第４図は同装置における超音波ビームの走査位
置と走査位置カウンタのカウント値との関係の一例を示
す図、第５図は同装置のＡ／Ｄ変換器のＡ／Ｄ変換周期
の変化を説明するための図、第６図ａ ”’−Ｃは同装
置の第１のタイミングコントロール回路で発生する１走
査終了パルスと走査位置カウンタのカウント値とＡ／Ｄ
変換器のＡ／Ｄ変換周期の関係を示す図である。
１・・・探触子、２・・・受信回路、３・・・送信回路
、４・・・Ａ／Ｄ変換器、５．１０・・・タイミングコ
ントロール回路、６・・・走査位置カウンタ、７・・・
画像メモ゛す、８・・・ビデオ信萼作成回路、９・・・
クロック発生回路。Fig. 1 is a diagram showing the pixel arrangement of a standard TV, Fig. 2 is a diagram showing data sampling points in a conventional device, and Fig. 3 is a diagram showing the pixel arrangement of a standard TV.
The figure is a block diagram showing one embodiment of the ultrasonic tomography apparatus according to the present invention, FIG. 4 is a diagram showing an example of the relationship between the scanning position of the ultrasonic beam and the count value of the scanning position counter in the same apparatus, and FIG. is a diagram for explaining changes in the A/D conversion period of the A/D converter of the same device, and Figure 6a ``'-C is a diagram showing the end of one scan pulse generated in the first timing control circuit of the same device. Count value of scanning position counter and A/D
FIG. 3 is a diagram showing a relationship between A/D conversion cycles of a converter. DESCRIPTION OF SYMBOLS 1... Probe, 2... Receiving circuit, 3... Transmitting circuit, 4... A/D converter, 5.10... Timing control circuit, 6... Scanning position counter, 7...
Image memo, 8... Video signal creation circuit, 9...
Clock generation circuit.
Claims (1)
走査方式が用いられ、各走査位置毎の受信信号に対して
所定の周期でアナログ・デジタル変換することにより各
走査位置毎に順次サンプリング点が深まる多数のデジタ
ルデータを得、このデータに基づき標準ＴＶを輝度変調
して標準ＴＶ上に断層像を表示させる超音波断層装置に
おいて、前記受信信号に対するアナログ・デジタル変換
の周期を超音波ビームの走査位置に応じて変化させ、各
走査位置毎のサンプリング順位を同じくするデジタルデ
ータが深度方向に同一レベル上で得られるようにしたこ
とを特徴とする超音波断層装置。At least a sector scanning method is used for the scanning method of the pulsed ultrasonic beam, and by performing analog-to-digital conversion on the received signal at each scanning position at a predetermined period, a large number of sampling points are sequentially deepened at each scanning position. In an ultrasonic tomography apparatus that obtains digital data, modulates the brightness of a standard TV based on this data, and displays a tomographic image on the standard TV, the period of analog-to-digital conversion of the received signal is adjusted to the scanning position of the ultrasound beam. An ultrasonic tomography apparatus characterized in that digital data having the same sampling order for each scanning position can be obtained at the same level in the depth direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17464381U JPS5880209U (en) | 1981-11-26 | 1981-11-26 | Ultrasonic tomography device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17464381U JPS5880209U (en) | 1981-11-26 | 1981-11-26 | Ultrasonic tomography device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5880209U true JPS5880209U (en) | 1983-05-31 |
Family
ID=29966697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17464381U Pending JPS5880209U (en) | 1981-11-26 | 1981-11-26 | Ultrasonic tomography device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5880209U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5578947A (en) * | 1978-12-08 | 1980-06-14 | Matsushita Electric Ind Co Ltd | Method of displaying ultrasoniccwave diagnosis device |
-
1981
- 1981-11-26 JP JP17464381U patent/JPS5880209U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5578947A (en) * | 1978-12-08 | 1980-06-14 | Matsushita Electric Ind Co Ltd | Method of displaying ultrasoniccwave diagnosis device |
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