Micro-positioning movement of holographic data storage system components
AssigneeInPhase Technologies, Inc.
InventorsDaniel D. Woods, Keith W. Malang
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Abstract
According to one aspect, a holographic storage system including micro-actuators is presented. In one example of one aspect of the invention, the device includes a spatial light modulator, a detector, a storage medium, and at least one micro-actuator configured to move at least one of the spatial light modulator, the detector, and the storage medium. The micro-actuators may include a servomechanism or the like to control the positioning of a component based on feedback associated with a misalignment of a detected image. According to another aspect of the invention, various methods for determining component misalignments of a holographic storage system are presented.
Claims79
A method for operating a holographic storage system comprising:
- detecting an image;
- determining a misalignment of the detected image;
- and
- activating at least one micro-actuator configured to position at least one component of the system based at least in part on the misalignment, the at least one component of the system comprising a member of the group consisting of:
- a detector, a storage medium, and a spatial light modulator device.
A method for operating a holographic storage system, comprising the acts of:
- providing a detector array and a storage medium;
- detecting an image stored in the storage medium with the detector array;
- determining a misalignment of the detected image with the detector array;
- and
- activating at least one micro-actuator for adjusting a component of the system based on the misalignment, the at least one component of the system comprising a member of the group consisting of:
- a detector, a storage medium, and a spatial light modulator device.
A method for operating a holographic storage system comprising:
- detecting an image;
- determining a misalignment of the detected image by measuring pixel cross-correlation of at least a portion of the image with a reference image and determining a correlation peak associated with the misalignment;
- and
- activating at least one micro-actuator configured to position at least one component of the system based at least in part on the misalignment.
A method for operating a holographic storage system, comprising:
- detecting an image;
- determining a misalignment of the detected image;
- and
- activating at least one micro-actuator for positioning a detector or spatial light modulator device based at least in part on the misalignment.
Dependencies are inferred from the claim text.