| Patent Number |
Title Of Patent |
Date Issued |
| 4928315 |
Chirped backscatter filter |
May 22, 1990 |
| A chirped backscatter filter 10 compares a received signal (RSIG) to a reference signal related to a transmitted signal (TSIG) and removes from RSIG the frequency component which is equal to TSIG in frequency. This removed frequency component corresponds to the frequency of the trans |
| 4731587 |
Enhanced quadrature notch filter |
March 15, 1988 |
| An enhanced quadrature notch filter which is capable of rejecting an undesired signal component of an input signal, generally comprising a quadrature phase splitter for producing first and second reference signals which have substantially the same frequency as the undesired signal co |
| 4122311 |
Electronic multiplexer for parallel, bi-directional scanning thermal imaging system |
October 24, 1978 |
| A system for generating a serial video signal from a plurality of parallel channels particularly useful in thermal imaging systems incorporating bi-directional scanning. Signals on parallel input lines are simultaneously sampled and held by individual sample and hold circuits in each |
