Method and apparatus for accurately detecting validity of a received signal
AssigneeViXS Systems, Inc.
InventorPaul Morris Astrachan
Life of this patent
Estimating the term…
Abstract
A method for detecting validity of a received signal begins by performing an auto-correlation on the received signal to produce an auto-correlation resultant. The process continues by performing a cross-correlation on the receive signal with a reference signal to produce a cross-correlation resultant. The process then continues by mathematically relating the auto-correlation resultant with the cross-correlation resultant to produce a mathematical correlation relationship. The process then proceeds by interpreting the mathematical correlation relationship to indicate whether the receive signal is valid or not.
Claims18
A method for accurately detecting validity of a received signal, the method comprises:
- performing an autocorrelation on the received signal to produce an autocorrelation resultant;
- performing a cross correlation of the received signal with a reference signal to produce a cross correlation resultant;
- mathematically relating the autocorrelation resultant with the cross correlation resultant to produce a mathematical correlation relationship;
- and
- interpreting the mathematical correlation relationship to indicate whether the received signal is valid or invalid.
An apparatus for accurately detecting validity of a received signal, the apparatus comprises:
- processing module;
- and
- memory operably coupled to the processing module, wherein the memory includes operational instructions that cause the processing module to:
- perform an autocorrelation on the received signal to produce an autocorrelation resultant;
- perform a cross correlation of the received signal with a reference signal to produce a cross correlation resultant;
- mathematically relate the autocorrelation resultant with the cross correlation resultant to produce a mathematical correlation relationship;
- and
- interpret the mathematical correlation relationship to indicate whether the received signal is valid or invalid.
A radio receiver comprises:
- low noise amplifier operably coupled to amplify a radio frequency (RF) signal to produce an amplified RF signal;
- down conversion module operably coupled to convert the amplified RF signal into a baseband signal;
- data recovery module operably coupled to recapture data from the baseband signal, wherein the data recovery module includes:
- data detection module operably coupled to detect validity of the baseband signal to produce a valid signal indication;
- and
- demodulation module operably coupled to demodulate the baseband signal to produce the data in accordance with the valid signal indication, wherein the data detection module includes:
- processing module;
- and
- memory operably coupled to the processing module, wherein the memory includes operational instructions that cause the processing module to:
- perform an autocorrelation on the received signal to produce an autocorrelation resultant;
- perform a cross correlation of the received signal with a reference signal to produce a cross correlation resultant;
- mathematically relate the autocorrelation resultant with the cross correlation resultant to produce a mathematical correlation relationship;
- and
- interpret the mathematical correlation relationship to indicate whether the received signal is valid or invalid.
Dependencies are inferred from the claim text.