Charge transfer device for processing video-frequency signals

Details Charge transfer device for processing video-frequency signals Charge transfer device for processing video-frequency signals

1977-09-06

1979-06-26

Richardson, Robert L.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

357 24, H03K 2300

Patent

active

041594304

ABSTRACT:
A charge transfer device of the bulk CCD type is used as an electronic variable delay line for video frequency signals. Charge packets are formed by integration of the input signal current over the entire clock period of the clock signal. As a result, cross-talk of the clock signal to the input section does not affect the video signal to be processed. Furthermore, the nonlinear characteristic of the input current source is linearized by negative current feedback with the aid of an operation amplifier. The input section of the device includes a diffused input region and a first gate electrode for receiving an input signal, and a second gate electrode for receiving a substantially constant voltage.

REFERENCES:
patent: 4032952 (1977-06-01), Ohba et al.

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