Method and system for transmitting isochronous voice in a...

Details Method and system for transmitting isochronous voice in a... Method and system for transmitting isochronous voice in a...

2005-09-13

2005-09-13

Chin, Stephen (Department: 2634)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S356000, C375S371000, C370S335000, C370S436000, C418S036000, C725S129000

Reexamination Certificate

active

06944249

ABSTRACT:
In one aspect the present invention describes an electronic circuit for transmitting voice packet data over a wireless network with an upstream transmission mode and a downstream transmission mode. The circuit comprises a first phase-lock loop (PLL) for locking a first clock to a time stamp signal, wherein the first clock synchronizes upstream data transmission over the wireless network; and a second PLL for locking a second clock to the time stamp signal, wherein the second clock is used for sampling voice data for downstream voice data transmission over the wireless network.

REFERENCES:
patent: 4012598 (1977-03-01), Wiley
patent: 5138635 (1992-08-01), Ballance
patent: 5696765 (1997-12-01), Safadi
patent: 5710765 (1998-01-01), Lee et al.
patent: 6243369 (2001-06-01), Grimwood et al.
patent: 2002/0129379 (2002-09-01), Levinson et al.
patent: 2785751 (2000-05-01), None
patent: 0768769 (1997-04-01), None
patent: WO 0028712 (2000-05-01), None

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