Browse Prior Art Database

TV Camera Correlator System

IP.com Disclosure Number: IPCOM000091875D
Original Publication Date: 1968-Jun-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 71K

Publishing Venue

IBM

Related People

Kay, RH: AUTHOR [+2]

Abstract

In a closed-circuit TV system, it is desirable to extract position-related data to which the video information being displayed can be correlated, preferably without manual intervention. To establish a completely computerized system for correlations of positional data and video information a coordinate mesh internal to the photoconductive type camera tube is operated at a voltage near that of the target. Only the vertical members of the mesh are shown in the drawing. The operation is described in terms of a horizontal scan.

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TV Camera Correlator System

In a closed-circuit TV system, it is desirable to extract position-related data to which the video information being displayed can be correlated, preferably without manual intervention. To establish a completely computerized system for correlations of positional data and video information a coordinate mesh internal to the photoconductive type camera tube is operated at a voltage near that of the target. Only the vertical members of the mesh are shown in the drawing. The operation is described in terms of a horizontal scan.

Tube 1 has a mesh of conductive material comprising a vertical array of members internal to the tube and installed at close proximity to the target from which the video information is extracted. A video detail to be scanned, line 5, is focused optically upon the target. As the tube's beam scans the target in a horizontal direction, both video and mesh signals are generated. The video signals are generated at the location of the detail intersected by the beam on the target. The mesh signals are continuously generated as the beam crosses each member of the vertical mesh. Signals are extracted from the mesh and are applied through mesh amplifier 7 to correlate with the video data being extracted from the target. The video data extracted is amplified by video amplifier 11 and is applied with the output of amplifier 7 to a comparator 13. The position of the video detail is designated by the contents of mesh counter 9 corres...