Low noise signal detection for a charge transfer device by quadr

Details Low noise signal detection for a charge transfer device by quadr Low noise signal detection for a charge transfer device by quadr

1986-01-31

1987-08-25

Miller, Stanley D.

Electrical pulse counters, pulse dividers, or shift registers: c

Charge transfer device

Particular input or output means

35821318, 35821326, G11C 1928, H04N 314

Patent

active

046898085

ABSTRACT:
Charge transfer devices typically include a periodically reset floating element output stage coupled to an FET amplifier for sensing the transferred charges. For reducing both low-frequency l/f noise and high-frequency reset noise, the duty factor of the device clocking signals and the reset signal are picked so that at a selected multiple of the clock signal repetition rate, the information component is in phase quadrature with the reset noise component. The charge transfer device output signal is then synchronously detected with a reference signal which is in phase with the selected multiple of the information component.

REFERENCES:
patent: 4151474 (1979-04-01), Woollvin et al.
patent: 4301471 (1981-11-01), Holscher et al.
patent: 4330753 (1982-05-01), Davy
patent: 4398062 (1983-08-01), McRae et al.
Low Noise CCD Signal Recovery by Peter A. Levine, pp. 1534-1537 of IEEE Transactions on Electron Devices, vol. ED-32, No. 8, Aug. 1985.

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