H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 7/08 (2006.01) H04L 27/26 (2006.01)
Patent
CA 2244382
An apparatus for receiving digital information signals, including a signal receiving portion for receiving a digital information signal, and for transmitting digital data composed of a series of transmission frames each divided into a plurality of segmental periods called symbols and including a reference Symbol for synchronization, a reference Symbol data extracting portion for extracting data transmitted through a reference Symbol from each of transmission frames of digital data obtained from the received digital information signal, a frequency offset detecting portion for obtaining a first frequency offset detection output based on the received digital information signal a strength of, data transmitted through the, reference Symbol at every transmission frame and obtaining also a second frequency offset detection output based on with the received digital information signal and a strength of specific data included in data transmitted in each of the plurality of Symbols, and a frequency synchronizing control portion operative to cause the received digital information signal to have reduced frequency offset in response to the first and second frequency offset detection outputs.
Fukami Tadashi
Nakamura Jin
Nomura Kiyoshi
Tsuruoka Tatsuya
Gowling Lafleur Henderson Llp
Sony Corporation
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