Optical digital pattern recognizing apparatus and method

A determination is made as to whether sequential binary bits modulating optical energy have a certain bit pattern by applying the energy to an optical line having plural points from which optical energy is derived. The propagation speed of the optical energy in the line, the duration of the bits and...

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Bibliographische Detailangaben
1. Verfasser:	CHILD JOSEPH R
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL COMPUTING DEVICES OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A determination is made as to whether sequential binary bits modulating optical energy have a certain bit pattern by applying the energy to an optical line having plural points from which optical energy is derived. The propagation speed of the optical energy in the line, the duration of the bits and the locations of the points are such that each of the binary bits passes by each of the points for approximately the same time, the propagation time of the energy between adjacent points equals the duration of each bit and the bits at the points are substantial replicas of the sequential binary bits modulating the optical energy. The values of the bits at the points are compared with the certain bit pattern to provide the determination.