Synchronization system for controlling switches

Details Synchronization system for controlling switches Synchronization system for controlling switches

1990-06-05

1991-09-24

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

342 94, 342198, 342205, 367903, G01C 308, G01S 1300

Patent

active

050509861

ABSTRACT:
An optical ranging system includes optics that create a backscatter signal in response to a transmitted light pulse. The transmitted pulse is reflected from a target to provide range information. The backscatter signal is applied to trigger a threshold detector. The output of the threshold circuit is applied to a delay circuit to provide a receiver switch control signal which renders a receiver switch conductive after the backscatter signal. Accordingly, the receiver switch blanks the backscatter signal and applies the reflected signal to the receiver.

REFERENCES:
patent: 3278753 (1966-10-01), Pitts et al.
patent: 3545861 (1970-12-01), Farnsworth et al.
patent: 3689156 (1972-09-01), Kerpchar
patent: 3941483 (1976-03-01), Ferrin
patent: 4521107 (1985-06-01), Chaborski et al.

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