发明名称 |
Calibration and security device for PC auditory programs |
摘要 |
This invention comprises a hardware and software system for automatically calibrating the audio output level of a personal computer used to evaluate human hearing. The invention requires hardware in the loop, which has the added benefit of preventing unauthorized use of the software.
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申请公布号 |
US6654652(B1) |
申请公布日期 |
2003.11.25 |
申请号 |
US20000644516 |
申请日期 |
2000.08.23 |
申请人 |
BEIERSDORF AG |
发明人 |
DALTON, JR. LESLIE W.;FRENCH ROBERT BRIAN |
分类号 |
A61B5/12;H04R25/00;(IPC1-7):G06F17/100;H04R29/00;A61B5/00 |
主分类号 |
A61B5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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