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US 2008/0291470 A1Published application
System architecture for sensing an absolute position using a target pattern
AssigneeAgilent Technologies, Inc.
InventorsJanet Yun, David C. Chu, Matthew D. Tenuta, Raymond Yeung, Nhan T. Nguyen
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Abstract
A location system and a location system on a chip (LCoS) and method are described.
Claims24
A location system, comprising:
- an image sensor adapted to capture an image of a subset of a target pattern;
- and
- a programmable logic device (PLD) operative to generate a first image vector representing summations of rows of pixel values from the image, and a second image vector representing summations of columns of pixel values from the image, wherein the PLD is configured to determine from the image vectors an absolute position of the subset in at least two dimensions with respect to an origin of the target pattern.
A location system on a chip (LSoC), comprising:
- an image sensor adapted to capture an image of a subset of a target pattern;
- and
- a programmable logic device (PLD) operative to generate a first image vector representing summations of rows of pixel values from the image, and a second image vector representing Summations of columns of pixel values from the image, wherein the PLD is configured to determine an absolute position of the subset with respect to an origin of the target pattern in at least two dimensions.
A method of determining a location, the method comprising:
- illuminating an object having a target pattern;
- capturing an image of a subset of the target pattern;
- and
- in a field programmable gate array (FPGA):
- generating a first image vector representing summations of rows of pixel values from the image and a second image vector representing summations of columns of pixel values from the image;
- and
- determining an absolute position of the subset with respect to an origin of the target pattern in at least two dimensions.
4 more elements
Dependencies are inferred from the claim text.