Method and system for shaping a spatial response of a...

Details Method and system for shaping a spatial response of a... Method and system for shaping a spatial response of a...

2007-12-04

2007-12-04

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S226000, C382S181000, C382S209000, C356S435000

Reexamination Certificate

active

10993938

ABSTRACT:
A spatial filter includes a number of photodetectors that generate individual signals in the time domain. The individual signals are subsequently divided and grouped to create the I and Q channels output from the spatial filter. Prior to the formation of the I and Q channels, a window function is used to shape the spatial response of the spatial filter.

REFERENCES:
patent: 5900949 (1999-05-01), Sampas
patent: 6031218 (2000-02-01), Piot et al.
patent: 6369389 (2002-04-01), Berlad et al.
patent: 0 568 478 (1993-11-01), None

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