发明名称 |
Video recording device responsive to triggering event |
摘要 |
A compact video image recording device for recording video images before and after a triggering event and which utilizes no moving parts is disclosed. The recording device includes at least one camera wherein each camera comprises a lens and a video image sensor. Each video image sensor generates an electronic signal representative of a video image impinging the respective sensor. The output of each image sensor is processed, compressed and generally employed to produce frame data which are successively stored in a successive frame locations of a semiconductor memory organized as a circular buffer memory. Upon the occurrence of a triggering event, a additional frames are stored in the buffer memory and further storage of frames then terminates. A video record is thus created of video images received both before and after the triggering event via a device which contains no moving parts and which can withstand substantial shock and vibration.
|
申请公布号 |
US7088387(B1) |
申请公布日期 |
2006.08.08 |
申请号 |
US19970906493 |
申请日期 |
1997.08.05 |
申请人 |
MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC. |
发明人 |
FREEMAN WILLIAM T.;YERAZUNIS WILLIAM S.;HIATT WALTER A. |
分类号 |
H04N7/18;H04N5/77;H04N5/907 |
主分类号 |
H04N7/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|