Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data
Reexamination Certificate
2008-01-29
2011-10-18
Ha, Dac (Department: 2611)
Pulse or digital communications
Synchronizers
Synchronizing the sampling time of digital data
C375S354000
Reexamination Certificate
active
08040989
ABSTRACT:
Methods and systems for adjusting a sampling rate of a digital radio receiver are disclosed that comprise the steps of receiving from a decoder a first frame of data having a first number of samples; determining at the digital radio receiver a phase difference between a receiver clock and a transmitter clock; generating at the digital radio receiver a second frame of data having a second number of samples, wherein the second number of samples depends on the phase difference between the receiver clock and the transmitter clock such that the second number of samples is less than the first number of samples if the transmitter clock is ahead of the receiver clock, and the second number of samples is greater than the first number of samples if the receiver clock is ahead of the transmitter clock; outputting the second frame of data having the second number of samples; and requesting a next frame of data from the decoder at a time that is earlier than a processing time for the first number of samples if the transmitter clock is ahead of the receiver clock and at a time that is later than the processing time for the first number of samples if the receiver clock is ahead of the transmitter clock such that the next frame of data from the decoder and a next transmitter frame are synchronized, and wherein whether the second number of samples is greater than or less than the first number of samples is determined by whether the sampling rate is increased or decreased.
REFERENCES:
patent: 5809009 (1998-09-01), Matsuoka et al.
patent: 6134286 (2000-10-01), Chennakeshu et al.
patent: 6167466 (2000-12-01), Nguyen et al.
patent: 6246735 (2001-06-01), Sano et al.
patent: 6333767 (2001-12-01), Patel et al.
patent: 6334219 (2001-12-01), Hill et al.
patent: 6418558 (2002-07-01), Roberts et al.
patent: 6539065 (2003-03-01), Furukawa
patent: 6603822 (2003-08-01), Brede et al.
patent: 6662000 (2003-12-01), Belveze et al.
patent: 6671340 (2003-12-01), Kroeger et al.
patent: 6674817 (2004-01-01), Dolle et al.
patent: 6693983 (2004-02-01), Moher et al.
patent: RE38456 (2004-03-01), Patel et al.
patent: 6721337 (2004-04-01), Kroeger et al.
patent: 7675843 (2010-03-01), Geile
patent: 2002/0037030 (2002-03-01), Goto
patent: 2005/0207519 (2005-09-01), Phang et al.
patent: 2005/0281360 (2005-12-01), Booth et al.
patent: 2006/0209941 (2006-09-01), Kroeger
patent: 2007/0038083 (2007-02-01), Srinivasan et al.
patent: 2007/0110185 (2007-05-01), Kroeger et al.
patent: 2007/0126936 (2007-06-01), Fujihira et al.
patent: 2009/0190701 (2009-07-01), Nekhamkin et al.
National Radio Standards Committee NRSC-5-A In-band/on-channel Digital Radio Broadcasting Standard, Sep. 2005available athttp://www.nrscstandards.org/SG/NRSC-5-A.asp.
International Search report dated May 26, 2009 from corresponding International Application No. PCT/US2009/00528.
Written Opinion of the International Searching Authority dated May 26, 2009 from corresponding International Application No. PCT/US2009/000528.
Lotarevich Valeriy
Nekhamkin Michael
Schier William
File Erin
Ha Dac
iBiquity Digital Corporation
Jones Day
LandOfFree
System and method for sampling rate adjustment of digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for sampling rate adjustment of digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for sampling rate adjustment of digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4296237