Digital broadcasting receiving apparatus with channel...

Details Digital broadcasting receiving apparatus with channel... Digital broadcasting receiving apparatus with channel...

2005-11-21

2010-10-19

Vo, Don N (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S340000, C375S346000

Reexamination Certificate

active

07817738

ABSTRACT:
A delay profile generating circuit9generates a delay profile signal. Concerning the delay profile signal, a ghost decision circuit10makes a decision as to the presence or absence of ghosts that will appear during traveling of a mobile vehicle in response to a transmission mode signal fed from a changeover switch8. The delay profile signal and the decision signal about the presence/absence of the ghosts are delivered to a window control circuit13via an accumulator11. The window control circuit13sets and controls the FFT window position of an FFT circuit5in response to a guard correlation signal fed from a guard correlation signal generating circuit12and a signal fed from the accumulator11.

REFERENCES:
patent: 2005/0105647 (2005-05-01), Wilhelmsson et al.
patent: 2000-115087 (2000-04-01), None
patent: 2000-125151 (2000-04-01), None
patent: 2001-77787 (2001-03-01), None
patent: 2002-261729 (2002-09-01), None
patent: 2003-87153 (2003-03-01), None
patent: 2004-40507 (2004-02-01), None
patent: 2004-96187 (2004-03-01), None
patent: 2004-179816 (2004-06-01), None
patent: 2004-304618 (2004-10-01), None

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