Sampling frequency conversion apparatus and signal switching...

Details Sampling frequency conversion apparatus and signal switching... Sampling frequency conversion apparatus and signal switching...

2006-11-09

2010-06-15

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Synchronizers

Frequency or phase control using synchronizing signal

C375S354000, C341S061000

Reexamination Certificate

active

07738615

ABSTRACT:
A sampling frequency conversion apparatus having sampling frequency conversion circuits for a plurality of channels includes a detector detecting phase information of digital signals inputted to the conversion circuit for each channel, and an input section inputting setting information for the conversion circuits for two or more channels to be phase-synchronized. The apparatus further includes a phase information supplier supplying the phase information for the conversion circuit for a specific channel designated by the setting information inputted into the input section to the conversion circuits for the remaining channels of those for two or more channels other than the conversion circuit for the specific channel, and a sampling frequency converter performing sampling frequency conversion on the phase information of the conversion circuits for the remaining channels in synchronization with the phase information for the specific channel supplied from the phase information supplier.

REFERENCES:
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patent: 2002/0190880 (2002-12-01), McLaughlin et al.
patent: 2004/0120361 (2004-06-01), Yu et al.
patent: 2005/0033586 (2005-02-01), Savell
patent: 2002 158619 (2002-05-01), None
patent: WO 2004 086614 (2004-10-01), None
Anonymous: “AD1896: 192 KHz Stereo Asynchronous Sample Rate Converter” Analog Devices Data Sheet, [Online] 2003, XP002517952 Retreived from the Internet: URL:http://www.analog.com/static/imported-files/data—sheets/AD1896.PDF>.

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