SYSTEM AND METHOD FOR SYNCHRONIZING SAMPLE RATES OF VOICEBAND CHANNELS AND A DSL INTERFACE CHANNEL

Title:

SYSTEM AND METHOD FOR SYNCHRONIZING SAMPLE RATES OF VOICEBAND CHANNELS AND A DSL INTERFACE CHANNEL

Document Type and Number:

WIPO Patent Application WO2001076195

Kind Code:

A3

Abstract:

A system (20) is provided for synchronizing a PSTN clock and a DSL clock. The system comprises a PSTN interface (21) for transmitting and receiving voiceband samples, a data DSL transceiver for modulating and demodulating data to and from DSL samples, a synchronization circuit for synchronizing the voiceband samples and data samples, and a converter (12 or 14) for converting the synchronized voiceband and DSL samples between analog and digital formats. The synchronization circuit synchronizes the voiceband and the data samples for conversion by the same converter.

Inventors:

STACEY FRED
RIVAUD DAN
MCCLENNON SCOTT

Application Number:

PCT/US2001/010029

Publication Date:

July 04, 2002

Filing Date:

March 28, 2001

Export Citation:

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Assignee:

CATENA NETWORKS INC (US)

International Classes:

H04L12/28; (IPC1-7): H04B1/38

Foreign References:

US4494211A	1985-01-15
US6233294B1	2001-05-15
US5852655A	1998-12-22
US5970103A	1999-10-19

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