Patent ID: 6377301
Filing Date: 2002-04-23
Classification: H04N

Abstract:
An image pickup apparatus for converting a signal representing an image picked up using an image pickup device performing predetermined processing on the digital signal, and outputting a resultant signal, said device comprisingan operational-mode switch; a driving circuit capable of setting a horizontal transfer frequency for the image pickup device to a first frequency or to a second frequency higher than the first frequency; a memory block for storing signals output from the image pickup device; a signal processing circuit for processing signals output from said memory block, wherein said signal processing circuit performs color processing; and control means for causing, when a first operational mode has been set by said operational-mode switch, said driving circuit to drive the image pickup device with a horizontal transfer frequency equal to the first frequency to cause a writing operation and a reading operation with respect to said memory block to be performed at the same frequency, and for causing, when a second operational mode has been set by said operational-mode switch, said driving circuit to drive the image pickup device with the horizontal transfer frequency equal to the second frequency to cause the writing operation and the reading operation with respect to said memory block to be performed at the second frequency and at the first frequency, respectively, wherein, when said first operational mode or said second operational mode have been set by said operational-mode switch, said driving circuit drives said signal processing circuit with a frequency equal to the first frequency.