Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2008-10-20
2011-11-29
Phu, Phuong (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S327000, C375S344000, C375S373000, C375S375000, C375S340000, C455S102000, C455S214000, C455S258000, C455S323000
Reexamination Certificate
active
08068563
ABSTRACT:
Methods and systems for correcting a frequency error in a digital portion of a radio broadcast signal are disclosed. The methods and systems include the steps of receiving a radio broadcast signal having an analog portion and a digital portion, separating the analog portion of the radio broadcast signal and the digital portion of the radio broadcast signal, determining a coarse frequency offset of the analog portion of the radio broadcast signal, generating an error signal for adjusting a frequency of the digital portion of the radio broadcast signal, wherein the error signal is based on the coarse frequency offset of the analog portion of the radio broadcast signal, and adjusting the frequency of the digital portion of the radio broadcast signal with the error signal that is based on the coarse frequency offset of the analog portion of the radio broadcast signal, such that a frequency error in the digital portion of the radio broadcast signal is reduced below a predetermined amount.
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Nekhamkin Michael
Thulasingam Sivakumar
iBiquity Digital Corporation
Jones Day
Phu Phuong
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