| 摘要 |
PROBLEM TO BE SOLVED: To provide a video capture circuit and a video capture method which prevents discontinuity, flickers, etc. of videos resulting from the deviation of VSYNC/HSYNC on the writing side and the reading side, based on the difference in the frequency between the writing clock and the reading clock. SOLUTION: A vertical synchronizing signal VSYNC<SB>R</SB>for reading, synchronized with a reading clock CL2, is generated in the video capture circuit; the phase difference between a vertical synchronizing signal VSYNC<SB>W</SB>synchronized with a writing clock CL1 and the vertical synchronizing signal VSYNC<SB>R</SB>for reading is monitored in a phase synchronization control part 14; and a period of the vertical synchronizing signal VSYNC<SB>R</SB>for reading is controlled, based on the phase difference. COPYRIGHT: (C)2006,JPO&NCIPI
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