US 2015/0083794 A1 · TARGET DECODING AND ROBOT POSITIONING IN A STORAGE LIBRARY

Abstract

Systems and methods are described for automatic calibration of robotic mechanism functions according to accurate decoding and locating of target features using spot scanning For example, a robotic mechanism in a storage library has one or more integrated scanners that can acquire contrast and/or topographic scan data from a scan window that represents a profile of the scan window expected to have one or more target feature sets. The scan data can be decoded according to predefined target masks (e.g., target type-specific fit tables) at a number of decode threshold levels to estimate target feature values, which can be used to converge on (or otherwise generate) a purported target definition with purported feature values. The purported target definition can be used to facilitate various functions, such as automatic calibration of robotic mechanism positioning and object identification.

Claims20

Dependent claims

A method for target decoding in a data storage system, the method comprising:

identifying a candidate target region as including an expected target feature set;
receiving raw scan data by scanning the candidate target region with a scanner, the raw scan data including a measured level for each of a plurality of sample locations within the candidate target region;
determining, for each of a plurality of decode threshold levels, an estimated feature value corresponding to each of a set of candidate target features defined by a candidate decode mask;
generating a purported target definition by calculating a purported feature value for each of the set of candidate target features as a function of the estimated feature values determined with respect to at least some of the plurality of decode threshold levels;
and
determining whether at least a portion of the expected target feature set is physically present in the candidate target region according to the purported target definition.

3 more elements

A system for target decoding in a data storage system, the system comprising:

a scanner that operates to acquire raw scan data indicating a measured level at each of a plurality of sample locations within a candidate target region determined to include an expected target feature set;
and
at least one processor, in communication with the spot scanner, that operates to:
determine, for each of a plurality of decode threshold levels, an estimated feature value corresponding to each of a set of candidate target features defined by a candidate decode mask;
generate a purported target definition by calculating a purported feature value for each of the set of candidate target features as a function of the estimated feature values determined with respect to at least some of the plurality of decode threshold levels;
and
determine whether at least a portion of the expected target feature set is physically present in the candidate target region according to the purported target definition.

4 more elements

Dependencies are inferred from the claim text.

Target decoding and robot positioning in a storage library

Life of this patent

Target decoding and robot positioning in a storage library

Life of this patent

Abstract

Claims20