| 摘要 |
The invention relates to an assembly for installing and maintaining a camera at the entrance door of a house or at an interior door, and for monitoring and recording activity occurring outside of the location. The invention is a complete, easily installed security unit incorporating a miniature CMOS (complementary metal-oxide semiconductor) or CCD (charged-coupled device) camera with sufficient memory storage to retain video and/or audio recordings for security and for message-taking purposes. The apparatus of the unit includes (1) a miniature CMOS/CCD camera with microphone, (2) printed circuit board (PCB) circuits; (3) memory storage; (4) a display device secured to an interior surface of the door; (5) a motion sensor for triggering the operation of the device, and (6) a tube for passing through the door and keeping the components in operable engagement with each other.
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