Circuit for analyzing a signal reflected from an object

Details Circuit for analyzing a signal reflected from an object Circuit for analyzing a signal reflected from an object

2006-05-25

2008-08-12

Epps, Georgia Y. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100, C250S559290, C356S482000

Reexamination Certificate

active

07411171

ABSTRACT:
In a circuit arrangement for analyzing a clocked signal reflected from an object, particularly an optical signal, wherein at least one radiation emitter which, for providing the clocked signal, is connected to a clocking signal generator, and at least one radiation receiver which receives radiation pulses emitted by the radiation emitter and reflected from the object, and a comparator by which the output signal pulses of the radiation are compared with reference pulses whose amplitudes depend on output signals of the comparator, are provided, the reference signal pulses occur concurrently with the radiation impulses received by the radiation receiver and the impulses received by the radiation receiver are compensated for each by a respective internal reference impulse before their analysis in the circuit arrangement.

REFERENCES:
patent: 4068222 (1978-01-01), Treviranus
patent: 6900449 (2005-05-01), Bolash et al.

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