Photoelectric detector with coded pulse output

Details Photoelectric detector with coded pulse output Photoelectric detector with coded pulse output

1997-03-05

1999-02-16

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359170, H04B 1000

Patent

active

058726462

ABSTRACT:
A detector, such as a photodetector, is provided with a serial output and serial input capability so that a first plurality of pulses can be transmitted from the detector in a first preselected direction. The first plurality of pulses represent a coded pattern. When pulses are received by the receiver portion of the detector, the received second plurality of pulses is compared to the first plurality of pulses to determine whether or not the two pluralities of pulses represent precisely matched coded patterns. The use of coded patterns that comprise a plurality of bits, or pulses, significantly decreases the chance of a mis-identification of a received pulse as being representative of a reflected transmitted pulse.

REFERENCES:
patent: 5151591 (1992-09-01), Johnson et al.
patent: 5331150 (1994-07-01), Marsh
patent: 5434668 (1995-07-01), Wootton et al.
patent: 5496996 (1996-03-01), Barnes et al.
Application Note #579. National Semiconductor-Microwine./Plus.TM.-Serial Interface for COP800 Family.

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