Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2008-04-18
2009-10-20
Le, Nhan T (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S323000, C455S333000, C375S346000, C331S016000
Reexamination Certificate
active
07606546
ABSTRACT:
A system, method and system are disclosed for using a variable frequency clock generator to synchronize an average data rate over intervals of time in a variable clock domain to make it equal to a fixed data rate in a fixed clock domain while reducing electromagnetic interference, among other things. In various embodiments, setting the data rates equal to each other minimizes storage used to transition data signals between clock domains. In one embodiment, a variable frequency clock generator includes a phase modulator configured to form a variable frequency clock. Also, the variable clock generator is configured to maintain an average frequency over specific periods of time for the range of discrete frequencies. The phase-offset controller sets an average clock having substantially no offset between a fixed data rate in the fixed clock domain and an average data rate in the variable clock domain.
REFERENCES:
patent: 4983970 (1991-01-01), O'Donnell et al.
patent: 5020137 (1991-05-01), Barsumian
patent: 5802463 (1998-09-01), Zuckerman
patent: 5963160 (1999-10-01), Wilson et al.
patent: 6148052 (2000-11-01), Bogdan
patent: 6169767 (2001-01-01), Strolle et al.
patent: 6233200 (2001-05-01), Knoll et al.
patent: 6501307 (2002-12-01), Yen
patent: 6643317 (2003-11-01), Blumer
patent: 6664827 (2003-12-01), O'Leary et al.
patent: 6687319 (2004-02-01), Perino et al.
patent: 6701133 (2004-03-01), Bennett et al.
patent: 6823025 (2004-11-01), Lee et al.
patent: 6925135 (2005-08-01), Smith et al.
patent: 6973145 (2005-12-01), Smith et al.
patent: 7026878 (2006-04-01), Smith
patent: 7076215 (2006-07-01), Moliere
patent: 7085949 (2006-08-01), Mar et al.
patent: 7230981 (2007-06-01), Hill
patent: 7236057 (2007-06-01), Kaizuka
patent: 7292449 (2007-11-01), Hall et al.
patent: 7299020 (2007-11-01), Shen et al.
patent: 7333527 (2008-02-01), Greenstreet et al.
patent: 7515879 (2009-04-01), Okabe et al.
patent: 2005/0053120 (2005-03-01), Kim et al.
patent: 2005/0176380 (2005-08-01), Okabe et al.
patent: 2005/0181741 (2005-08-01), Raj et al.
patent: 2005/0277396 (2005-12-01), Pipilos
Liu, Tao, et al., “Radio Frequency Antenna System and High-Speed Digital Data Link to Reduce Electromagnetic Interference for Wireless Communications,” U.S. Appl. No. 11/132,757, filed May 18, 2005.
Liu, Tao, et al., “Variable Frequency Clock Generator For Synchronizing Data Rates Between Clock Domains in Radio Frequency Wireless Communication Systems,” U.S. Appl. No. 11/954,857, filed Dec. 12, 2007.
Liu, Tao, et al., “Variable Frequency Clock Generator For Synchronizing Data Rates Between Clock Domains in Radio Frequency Wireless Communication Systems,” U.S. Appl. No. 11/954,935, filed Dec. 12, 2007.
Liu, Tao, et al., “Variable Frequency Clock Generator For Synchronizing Data Rates Between Clock Domains in Radio Frequency Wireless Communication Systems,” U.S. Appl. No. 11/955,101, filed Dec. 12, 2007.
Heshami Mehrdad
Keramat Mansour
Kuo Timothy C.
Liu Edward Wai Yeung
Liu Tao
Cooley Godward Kronish LLP
Le Nhan T
Nvidia Corporation
LandOfFree
Variable frequency clock generator for synchronizing data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable frequency clock generator for synchronizing data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable frequency clock generator for synchronizing data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4094497