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TV surveillance system that requires no mechanical motion

  • US 4,740,839 A
  • Filed: 06/12/1987
  • Issued: 04/26/1988
  • Est. Priority Date: 06/12/1987
  • Status: Expired due to Fees
First Claim
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1. A surveillance system comprising a TV camera located fixly such that a scene having a plurality of area will be reviewed, said camera having a vidicon photo conductive surface, circuit means connected to said camera such that the vertical and horizontal deflection coil drive circuitry can be changed such that a reduction of the electron beam scanning raster on the vidicon photo conductive surface will be obtained so as to underscan the scene, controlling the circuit means such that the scene can be scanned area by area even though the camera is located fixly, a monitor connected to said camera for viewing the areas scanned by the camera, and control means connected to the circuitry whereby a specific area of a specific size can be scanned and reviewed by said monitor.

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