发明名称 |
DIGITAL REGENERATIVE RECEIVER FOR MILLIMETER-WAVE AND SUB-MILLIMETER-WAVE IMAGING AND COMMUNICATION |
摘要 |
A millimeter and sub-millimeter wavelength receiver imaging apparatus and method which directly generates a time encoded digital signal for an imaging pixel in response to interoperation of a digital quench circuit, an envelope detector, and a regenerative oscillator coupled to an antenna. The device utilizes the fact that oscillator startup time in a regenerative oscillator is inversely proportional to injected pixel image power. A digital quench circuit, such as a latch, is coupled for activating and deactivating the regenerative oscillator in response to receiving an output from an envelope threshold circuit, and for generating a time encoded digital signal in response to pixel amplitude during millimeter and sub-millimeter wavelength imaging. Receiver embodiments are described for both fundamental frequency operation (DRR) and for multi-frequency imaging (IRR). |
申请公布号 |
WO2012034103(A2) |
申请公布日期 |
2012.03.15 |
申请号 |
WO2011US51125 |
申请日期 |
2011.09.09 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA;CHANG, MAU-CHUNG;TANG, ADRIAN |
发明人 |
CHANG, MAU-CHUNG;TANG, ADRIAN |
分类号 |
G01V3/12;G01S13/04;G01S13/89 |
主分类号 |
G01V3/12 |
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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