Patent ID: 8891696
Filing Date: 2014-11-18
Classification: H04L

Abstract:
1. A wireless sensor with fast correlator to detect a known burst pattern, said wireless sensor with fast correlator comprising: a wireless receiver that receives a coded burst pattern signal similar to an IP address, then detects the bits of received coded burst pattern and apply the detected bits to a bit domain correlator; a shift register that shift the detected bits from the wireless receiver at chip frequency and provides one of the inputs to an Inverted Exclusive OR Gate array in the bit domain correlator; a column of Inverted Exclusive OR gate (XNOR) array to match the wireless receiver's detected bits with the actual bits of a known burst pattern stored in the wireless receiver; multiple consecutive columns of AND gate array that are made even by a delay block to convert the output of the column of Inverted Exclusive OR gate array to final two outputs; a final AND gate to take the output of the columns of AND gate array to produce an output which is high when a match between the stored known burst pattern in the wireless receiver and the detected bits of received burst pattern by the wireless receiver occurs.