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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Rachlin; Daniel J.
Address:
Palo Alto, CA
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
5268876 Method of estimating near field aberrating delays December 7, 1993
A method to quantify the distortions caused by near filed variations in the propagation medium of pulse echo imaging systems. By estimating the phase lags induced by the aberrator at each point on the aperture, appropriate electronic delays might be applied to the signals associated with
4925300 Optical fingerprint imaging device May 15, 1990
Apparatus suitable for imaging fingerprints directly from a finger in contact with a transparent surface of a lens is described. The conical nature of the contact surface affords the opportunity for a single such surface to accommodate a wide range of finger sizes. The front surface of










 
 
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