Television – Camera – system and detail – Solid-state image sensor
Patent
1996-03-07
1998-08-04
Faile, Andrew I.
Television
Camera, system and detail
Solid-state image sensor
348302, 348308, H04N 314
Patent
active
057901910
ABSTRACT:
An improved method of preamplification of signals from a MOS imaging array. Each column of the imaging array includes a charge amplifier. Charge amplifiers for alternating columns are grouped together as an odd group. The remaining charge amplifiers are grouped together as an even group. The signals from the even group and the signals from the odd group are provided to a switch. The switch has two outputs: line A and line B. Lines A and B are routed to two identical second-stage amplifiers. In a first mode, the switch routes the even group to line A and the odd group to line B. In a second mode, the switch routes the even group to line B and the odd group to line A. The switch alternates between the first mode and the second mode during the vertical blanking period of an NTSC scanning scheme.
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Faile Andrew I.
OmniVision Technologies Inc.
Wilson Jacqueline
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