21
Cosimo J Favaloro, Maurice A Bergeron: Stripline slot antenna. Sanders Associates, Louis Etlinger, Joseph E Funk, April 8, 1980: US04197545 (50 worldwide citation)

A slot antenna capable of relatively broad bandwidth operation is disclosed that may be used for wide angle scanning in phased arrays. By shorting the feed element to the slot radiator at multiple points, the relatively broad bandwidth operation is achieved.


22
Ralph H Baer: Dual image television. Sanders Associates, Louis Etlinger, Richard I Seligman, November 9, 1976: US03991266 (48 worldwide citation)

In a television system, a multiplexing system permits the simultaneous transmission of two or more images with apparent full resolution, but without a corresponding increase in required transmission bandwidth. The television transmission uses the method of interleaving successive scan lines from dif ...


23
Norman J Carl: Scanning optical system. Sanders Associates, Louis Etlinger, William F Porter Jr, October 11, 1983: US04409477 (44 worldwide citation)

A scanning system providing a linear scanning beam utilizing a fiber optic bundle, one end of which forms a circle which is scanned by a light beam and the other of which forms a straight line. Other fibers are within and external to the circle formed by the one end of the fiber optic bundle and are ...


24
John T Apostolos, Robert P Boland: Method and apparatus for signal recognition. Sanders Associates, Louis Etlinger, Joseph E Funk, September 4, 1979: US04166980 (43 worldwide citation)

A method and apparatus are provided for sorting signals from compressive receivers in accordance with the type of modulation on the signal, so as to be able to establish the identity of the signal short of fully demodulating it. It has been found that signals from a compressive receiver which are in ...


25
Gary A Bergeron: Apparatus and method for determining the position of a driven coil within a grid of spaced conductors. Talos Systems, Louis Etlinger, Richard I Seligman, December 27, 1983: US04423286 (43 worldwide citation)

A digitizing system includes a first plurality of spaced parallel grid conductors and a second plurality of spaced parallel grid conductors orthogonal to the first plurality of spaced parallel grid conductors. The location of a movable coil arranged on a pen or cursor is determined for each pluralit ...


26
Burton D Figler, Theodore J Nussdorfer: Radiation detection apparatus. Sanders Associates, Louis Etlinger, Richard I Seligman, March 16, 1976: US03944167 (42 worldwide citation)

A radiation sensor including an inner detector surrounded by an array of outer detectors is employed in radiation tracking apparatus which is capable of tracking a true target in a field of targets which may include a decoy or false target. The apparatus includes a color filter arrangement and a ret ...


27
Paul Tingleff, Homer Prue, Charles Stewart: Inflight aircraft training system. Sanders Associates, Louis Etlinger, Donald A Streck, January 3, 1984: US04424038 (42 worldwide citation)

Inflight training apparatus is provided for military aircraft radar warning receivers that is plug compatible with the standard receiver processor to provide realistic training scenarios responsive to pilot maneuvering while recording the pilot's actions for post flight analysis. The training appara ...


28
John T Apostolos, Chester E Stromswold: Spread-spectrum detection system for a multi-element antenna. Sanders Associates, Louis Etlinger, Stanton D Weinstein, April 7, 1987: US04656642 (40 worldwide citation)

In a spread-spectrum direction-finding system, the outputs of the several antenna elements (10a-d) are progressively translated in frequency by a chirped local oscillator (14) and mixers (12a-d) and applied to a two-dimensional dispersive filter (18), which time compresses the results of single-freq ...


29
Richard L Powers, Kenneth D Arkind, Richmond W Price: Multiple ridge antenna. Sanders Associates, Louis Etlinger, Stanton D Weinstein, May 20, 1986: US04590478 (39 worldwide citation)

A microwave antenna (10) is excited by two independently driven feed lines (30 and 32) so that the plane of polarization of the resultant microwave radiation depends on the relative amplitudes of the signals on the two feed lines. The feed lines are disposed between two parallel ground planes (12 an ...


30
George W Pappas Lyndeborough: Speech processor for changing voice pitch. Sanders Associates, Louis Etlinger, November 16, 1971: US3621150 (39 worldwide citation)

By utilizing the speech processor of the invention, the speech of a diver in a helium-oxygen atmosphere is made intelligible, or a normal recording played at higher speeds is made intelligible thereby providing a speed hearing capability, or a voice signal is compressed for transmission over low ban ...