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Title:
DRIVE METHOD FOR SOLID-STATE IMAGE PICKUP ELEMENT
Document Type and Number:
Japanese Patent JP3192849
Kind Code:
B2
Abstract:

PURPOSE: To prevent a pattern noise from being superimposed on video data when an image pickup element is driven intermittently by setting a period stopping the drive of the image pickup element at random for each horizontal scanning period.
CONSTITUTION: An H driver drives a horizontal transfer section intermittently for a predetermined period so as not to make the setting timing for a pause period dissident with each horizontal scanning period. For example, as to a transfer clock &phiv H. whose pause period is set at the interval of four clock signals, the clock timing is quickened by one clock when a first horizontal scanning period (1H) is transited to a succeeding horizontal scanning period (2H). Every time the horizontal scanning period proceeded the timing of the transfer clock &phiv H is quickened by one clock each, and when 5th horizontal scanning period (5th H to succeeding 6-th horizontal scanning period (6H)) is proceeded, the clock is restored to a transfer clock &phiv H in the same timing as the horizontal scanning period (1H).


Inventors:
Nakai, Tomomichi
Watanabe, Toru
Application Number:
JP1993000300572
Publication Date:
July 30, 2001
Filing Date:
November 30, 1993
Export Citation:
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Assignee:
SANYO ELECTRIC CO LTD
International Classes:
H04N5/335; H04N5/341; H04N5/343; H04N5/365; H04N5/3725; H04N5/378; (IPC1-7): H04N5/335
Attorney, Agent or Firm:
芝野 正雅