Apparatus and method for optical pattern detection
AssigneeLucent Technologies Inc.
InventorStamatios V. Kartalopoulos
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Abstract
An optical pattern detector in accordance with the principles of the present invention includes an optical sensor configured to sense a plurality of optical signals, an optical summer configured to receive and sum the sensed optical signals, and a sampler configured to sample the summed optical signals. The pattern detector may be configured to receive serial or parallel binary optical signals and, with various weightings of the sensed optical signals, may operate as an optical digital to analog converter, automatically decoding binary digital optical signals.
Claims25
An optical pattern detector comprising:
- an optical sensor configured to receive and sense a binary optical signal of at least two pulses, such that each pulse of said binary optical signal is sensed within its pulse time,
- an optical summer configured to receive and sum the sensed pulses from the optical sensor, and
- a sampler configured to sample the summed pulses, said sample indicative of an optical pattern of said received binary optical signal.
A method for detecting an optical pattern comprising the steps of:
- (A) receiving and sensing a binary optical signal of at least two pulses such that each pulse of said binary optical signal is sensed within its pulse time,
- (B) summing the pulses sensed in step A;
- and
- (C) sampling the pulses summed in step B, said sample indicative of an optical pattern of said received binary optical signal.
Dependencies are inferred from the claim text.