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US 5,208,832 AGranted
Methods and apparatus for detecting repetitive sequences
AssigneeNational Semiconductor Corporation
InventorIsrael Greiss
Life of this patent
Estimating the term…
Abstract
The existence of a training sequence in a demodulated signal is detected by first estimating the signal level of the demodulated signal. Next, the error level of the demodulated signal is estimated. The estimated signal level and the estimated error level are then compared against a decision criteria to determine whether a training sequence has been detected.
Claims7
A method for detecting a repetitive sequence in a received signal, the method comprising:
- (a) estimating the signal level of the received signal;
- (b) estimating the error level of the received signal;
- and
- (c) comparing the estimated signal level and the estimated error level against a decision criterion to arrive at a decision regarding the existence of the repetitive sequence.
1 more element
Apparatus for detecting a repetitive sequence in a received signal, the apparatus comprising:
- (a) means for estimating the signal level of the received signal;
- (b) means for estimating the error level of the received signal;
- and
- (c) means for comparing the estimated signal level and the estimated error level against a decision criteria to arrive at a decision regarding the existence of the repetitive sequence.
1 more element
Dependencies are inferred from the claim text.