Portable signal generating method and system based on USB mobile memory tech |
Title： |
| Portable signal generating method and system based on USB mobile memory tech |
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Application Number： |
200410030789 |
Application Date： |
2004/04/09 |
Announcement Date： |
2005/01/12 |
Pub. Date： |
2006/08/16 |
Publication Number： |
1564001 |
Announcement Number： |
1270187 |
Grant Date： |
2006-8-16 |
Granted Pub. Date： |
2006-8-16 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01R 1/28, H03K 4/00, A61B 5/040 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Bai Jing, Xu Canxing, Zhang Yonghong |
Key Words： |
Portable, signal generating, method, system, USB mobile memory tech |
Abstract： |
The invention belongs to medical electronic equipment. Read/write determination is carried out for main computer by single chip through USB in order to implement USB removal storage device class. External interrupt and counter interrupt are generated through keystroke. Counter interrupt executes operation of forwarding searching file by date, and external interrupt is in reverse. With data files being found, data in file are red out in sequence based on frequency interrupted by timer. After D/A conversion, output of analog signal is formed. Several global variables for reading file data in sequence are defined in time of outputting data. Block diagram is also disclosed in the invention. The system is portable, easy of use and safe. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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