Electronic camera
AssigneeFuji Photo Film Co., Ltd.
InventorShinichi Fujimoto
Life of this patent
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Abstract
An electronic camera in which an analog signal output from a CCD image sensor is AD-converted and digital processing is performed on the AD-converted by an A/D converter in an analog front end, and the AD-converted signal DMA-transferred to a RAM through line memories in a signal processor. The signal processor controls a basic operating clock signal generated from a clock signal generation circuit so that the frequency of the clock signal is reduced during a read period in which processing including AD conversion of the analog signal output from the CCD image sensor is performed.
Claims5
An electronic camera in which an analog signal output from an image pickup device is AD-converted and digital processing is performed on the AD-converted signal on the basis of a basic operating clock, said camera comprising:
- clock change device of changing the frequency of the basic operating clock;
- and
- control device of controlling the clock change device so that the frequency of the basic operating clock is reduced at the time of AD conversion of a still image output from the image pickup device.
Dependencies are inferred from the claim text.