发明名称 IMAGE PICKUP DEVICE
摘要 PROBLEM TO BE SOLVED: To facilitate memory access from an external device, and to prevent image information from being modified. SOLUTION: When a record trigger switch 5 is operated, one image outputted from a camera signal processing circuit 17 at that time is written into a semiconductor memory 12, and further, the written image is subjected to data compression by a data compression circuit 21 and stored in a semiconductor memory 13. In this case, if an external device (not shown) is connected to a connector 14, even if the external device instructs to fetch an image of the memory 13 while the memory 13 is writing the image, a state detection circuit 23 detects it and inhibits the external device from fetching the image. Also, while an image of the memory 13 is fetched into the external device even if the circuit 23 detects it and operates the switch 5, an AND gate 6 is turned off and image writing into the memory 13 is inhibited. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004129293(A) 申请公布日期 2004.04.22
申请号 JP20030408509 申请日期 2003.12.08
申请人 HITACHI LTD 发明人 AYUSAWA IWAO;ITO SHIGEYUKI;WAKABAYASHI MANABU
分类号 H04N5/225;H04N5/907;H04N5/91;H04N101/00;(IPC1-7):H04N5/907 主分类号 H04N5/225
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