Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2005-01-04
2005-01-04
Phu, Phuong (Department: 2631)
Pulse or digital communications
Receivers
Angle modulation
C375S327000, C375S344000, C375S362000, C375S373000, C348S726000, C348S735000
Reexamination Certificate
active
06839388
ABSTRACT:
There is disclosed an improved system and method for providing frequency domain synchronization for a single carrier signal such as a vestigial sideband signal. The system comprises a synchronization circuit that is capable of obtaining a coarse frequency estimate of the single carrier signal and a fine frequency estimate of the single carrier signal. The system also comprises a three state machine for obtaining an accurate frequency estimate from three separately obtained frequency estimates. The system also comprises a DC estimator circuit that is capable of providing a time domain DC estimate. The system provides a pilot carrier recovery circuit for single carrier signals that has a linear transfer function.
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Digital Video Broadcasting (DVB) Framing Structure, Channel Coding and Modulation for Digital Terrestrial Television (DVB-T), ETS 300 744 Mar. 1997, European Telecommunication Standard.
Koninklijke Philips Electronics , N.V.
Phu Phuong
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