Patent ID: 8611471

Claim:
A system for reducing implementation complexity in estimation of a Carrier Frequency Offset (CFO) and a Symbol Timing Offset (STO) for spectrally shaped multiple communication standards, said system comprising: a carrier frequency offset (CFO) estimation block that controls a down conversion of an input signal to lock a carrier frequency; a band extraction block that extracts a lower band edge and a upper band edge of said input signal required for said CFO and said STO estimation; and a symbol timing offset (STO) estimation block comprising: a sample error generation block that generates a sampling timing error value by multiplying said upper band edge with a conjugate of said lower band edge, and a phase lock loop block that estimates a frequency error and a phase error corresponding to said sampling timing error value, wherein a spectrum tilt correction factor obtained from a tilt information and a corresponding shift value is applied to estimate said CFO, wherein said tilt information is obtained from a tuner.