Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2007-12-12
2009-06-16
Le, Nhan T (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S296000, C455S333000, C375S327000, C331S019000
Reexamination Certificate
active
07548740
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.
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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. 11/955,101, filed Dec. 12, 2007.
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Heshami Mehrdad
Keramat Mansour
Kuo Timothy C.
Liu Edward Wai Yeung
Liu Tao
Cooley Godward Kronish LLP
Le Nhan T
Nvidia Corporation
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