Method for driving two-dimensional CCD imaging device

Details Method for driving two-dimensional CCD imaging device Method for driving two-dimensional CCD imaging device

1993-07-16

1995-01-17

Boudreau, Leo H.

Television

Camera, system and detail

Solid-state image sensor

348299, 348313, 348314, H04N 314

Patent

active

053829786

ABSTRACT:
A method for driving a CCD solid state imaging device of a frame-interline type is disclosed. The CCD imaging device comprises a semiconductor substrate, an image section including a number of pixels arranged two-dimensionally and each having a radiation sensor, transfer gate and a first vertical CCD, a storage section, a horizontal CCD shift register, and an output section. The semiconductor substrate having a protruding portion as a drain member is biased at a low level for accumulating signal charges during an effective picture interval and at a higher level for draining all of the signal charges during a frame shift transfer period. The amplitude of the driving signals for driving gate electrodes of the vertical CCD shift registers can be large without reading out noise-forming charges so that the transfer efficiency can be improved in a CCD imaging device.

REFERENCES:
patent: 4963983 (1990-10-01), Kohro et al.
patent: 4985776 (1991-01-01), Taniji
patent: 4989095 (1991-01-01), Whitesel et al.
T. Kuriyama et al., "A 1/3-in 270 000 Pixel CCD Image Sensor", Transactions on Electron Devices, vol. 38, No. 5, May 1991, pp. 949-953.
T. Nobusada et al, "Frame Interline Transfer CCD Sensor for HDTV Camera", 1989 IEEE International Solid-State Circuits Conference, pp. 88 and 91.
K. Yonemoto et al., "A 2 Million Pixel FIT-CCD Image Sensor for HDTV Camera System", 1990 IEEE International Solid-State Circuits Conference, pp. 214-215.

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