Charge summing filter aperture corrector

Details Charge summing filter aperture corrector Charge summing filter aperture corrector

1979-10-10

1981-06-23

Munson, Gene M.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307311, 357 24, 357 30, G11C 1928, H01L 2978, H01L 2714, H01L 3100

Patent

active

042753155

ABSTRACT:
An optically scanned monolithic focal plane array includes an on-chip aperture corrector interposed between the photodetector output register and the multiplexer, thereby providing data to the aperture corrector in an order parallel to the direction of optical scan, advantageously eliminating any requirement of additional hardware for demultiplexing, memory or timing functions. The desired transfer function is achieved by providing a supplementary source of charge flow in addition to the photodetector signal, the supplementary charge flow being reduced in response to each signal charge packet at first and second intervals which are advanced and delayed respectively with reference to each corresponding signal charge packet by a selected interval. This reduction is proportional to a portion p of the signal charge packet which is determined by adjustment of bias voltages controlling injection of supplementary charge without requiring a charge splitting mechanism. The resulting transfer function boosts the high frequency response of the system, thereby providing aperture correction to compensate for high frequency attenuation.

REFERENCES:
patent: 3883437 (1975-05-01), Nummedal et al.
patent: 4139784 (1979-02-01), Sauer

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