Processing of imaging data using differences between analog photocell data elements
AssigneeIntel Corporation
InventorPhillip E. Mattison
Life of this patent
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Abstract
Under an embodiment, a system includes an array of analog photocells; a first plurality of shift cells, each shift cell in the first plurality of shift cells being coupled to a corresponding analog photocell; and a second plurality of shift cells, each shift cell in the second plurality of shift cells being coupled to a corresponding shift cell in the first plurality of shift cells; and a differential operational amplifier having a first input coupled to a terminating output of the first plurality of shift cells and a second input coupled to a terminating output of the second plurality of shift cells.
Claims8
A system comprising:
- an array of analog photocells;
- a first plurality of shift cells, an output of each shift cell in the first plurality of shift cells being coupled to an input of the next shift cell in the first plurality of shift cells, each of the photocells in the array of analog photocells being coupled to a corresponding shift cell in the of the first plurality of shift cells;
- a second plurality of shift cells, an output of each shift cell in the second plurality of shift cells being coupled to an input of the next shift cell in the second plurality of shift cells, a signal from a terminating output of the first plurality of shift cells being transferred to an input of a first shift cell in the second plurality of shift cells;
- a regeneration amplifier having an input coupled to the terminating output of the first plurality of shift cells and having an output coupled to the input of the first shift cell of the second plurality of shift cells;
- and
- a differential operational amplifier having at least two inputs, a first input of the differential operational amplifier being coupled to the terminating output of the first plurality of shift cells and a second input being coupled to a terminating output of the second plurality of shift cells.
A method comprising:
- transferring a signal from each photocell in an array of analog photocells to a corresponding storage location in a first plurality of storage locations, an output of each storage location in the first plurality of storage locations being coupled to an input of the next storage location in the first plurality of storage locations;
- amplifying signals from a terminating output of the first plurality of storage locations;
- transferring the amplified signals from the terminating output of the first plurality of storage locations to an input of a first storage location in a second plurality of storage locations, an output of each storage location in the second plurality of storage locations being coupled to an input of the next storage location in the second plurality of storage locations;
- and
- determining the difference between signals from the terminating output of the first plurality of storage locations and signals from a terminating output of the second plurality of storage locations.
Dependencies are inferred from the claim text.