Encoder for measuring the absolute position of moving elements

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United States of America Patent

PATENT NO 4901073
SERIAL NO

07176109

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An optical encoding system for determining the absolute position of a movable member relative to a stationary member. For example, a bar-code scanner may be supported by a stationary member for scanning bar-code symbols in its field of view. An encoding band may be supported by the movable member so that a portion of the band is scanned by the bar-code scanner. Affixed to or otherwise marked on the band is a sequential series of bar-code symbols, each symbol encoding the absolute position of its location on the band. A bar-code decoding system, actuated by the signals produced by the bar-code scanner, decodes the bar-code symbol scanned by the scanner, and determines the absolute position of a movable member relative to the stationary member.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE REGENTS OF THE UNIVERSITY OF CALIFORNIAOAKLAND, CA6669

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kibrick, Robert I Santa Cruz, CA 3 293

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