| Original document(40 pages) 中文版 |
The ultrasonic tranceiver for image enhancing provides a filtering of a constant band width for echo signal of variable frequency by a selective filter. Then, the signal obtained is rectified to produce a signal in which the amount of multiple virtual image is reduced and the quality of the signal coming from the disconnected places of deep tissue is enhanced. The recieving signal is rectified orthogonally with reference to a guide frequency of the analog carrier wave which has no-constant frequency relation with the signal translmited, the resulted signal is processed to provide an information for displaying the structure feature and curve of blood velocity. By overlapping the image informations for both structure and velocity, a combined signal is obtained by which the static and dynamic features of patient can be fully reported to observer. |
Application Number
申请号 |
85108130 |
Application Date
申请日 |
1985.11.04 |
| Title 名称 |
Tissue signature tracking tranceiver |
Publication Number
公开号 |
1010898 |
Publication Date
公开日 |
1987.05.13 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
A61B5/02 |
Applicant(s) Name
申请人 |
Dymax Corp. (US) 136 Gama Drive Pittsburgh, Pennsylvania 15238 U.S.A. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
ZHANG WEIMIN |
| More information 更 多 信 息 |
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