Manish Sharma

US Patent:

8340118, Dec 25, 2012

Filed:

May 19, 2009

Appl. No.:

12/468562

Inventors:

Xinkuan Zhou - Shekou, CN
Clifton Powers - Raleigh NC, US
Laxman Anne - Eden Prairie MN, US
Manish Sharma - Eden Prairie MN, US
Joe Polland - Eden Prairie MN, US

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04B 7/212

US Classification:

370442

Abstract:

A multiplexing card comprises a primary TDM port over which TDM frames are communicated to and from a networking device, a plurality of secondary TDM ports over each of which fractional TDM frames are communicated to and from a plurality of digital subscriber line (DSL) units; and a logic device coupled between the primary TDM port and the plurality of secondary TDM ports, wherein the logic device is operable to map timeslots from each of the fractional TDM frames received over the plurality of secondary TDM ports to timeslots in a TDM frame communicated over the primary TDM port, and to map each of a plurality of blocks of timeslots in a TDM frame received over the primary TDM port to one of the plurality of secondary TDM ports; wherein the combined number of timeslots containing user data in the fractional TDM frames received over the plurality of secondary TDM ports is less than or equal to the maximum number of available timeslots in the corresponding TDM frame communicated over the primary TDM port.

US Patent:

20090290603, Nov 26, 2009

Filed:

May 19, 2009

Appl. No.:

12/468552

Inventors:

Xinkuan Zhou - Shekou, CN
Clifton Powers - Raleigh NC, US
Laxman Anne - Eden Prairie MN, US
Manish Sharma - Eden Prairie MN, US
Joe Polland - Eden Prairie MN, US

Assignee:

ADC DSL SYSTEMS, INC. - Eden Prairie MN

International Classification:

H04J 3/02

US Classification:

370537

Abstract:

A communication system comprises a first multiplexer card having a first plurality of time division multiplex (TDM) ports and a first differential signaling interface, wherein the first multiplexer card is operable to map timeslots from each of the first plurality of TDM ports to a first combined signal transmitted via the first differential signaling interface; a first unit having a second differential signaling interface coupled to the first differential signaling interface, wherein the first unit is operable to extract the timeslots from the first combined signal and to map the extracted timeslots to a digital subscriber line (DSL) frame for transmission over a DSL link; a second unit coupled to the first unit via the DSL link, the second unit having a third differential signaling interface, wherein the second unit is operable to extract the timeslots in the DSL frame and to map the timeslots to a second combined signal transmitted via the third differential signaling interface; and a second multiplexer card having a second plurality of TDM ports and a fourth differential signaling interface, wherein the second multiplexer card is operable to map each of the timeslots from the second combined signal to one of the second plurality of TDM ports.

US Patent:

20130054725, Feb 28, 2013

Filed:

Aug 30, 2011

Appl. No.:

13/221342

Inventors:

Yiu Lam Chan - Raleigh NC, US
Clifton Powers - Raleigh NC, US
Laxman R. Anne - Eden Prairie MN, US
Derli Chan - Zhongli, TW
Manish Sharma - Eden Prairie MN, US
Sheng-Chang Hsu - Dayuan, TW

Assignee:

100-ADC DSL SYSTEMS, INC. - Eden Prairie MN

International Classification:

G06F 15/16

US Classification:

709209

Abstract:

A method to reduce link-up time between nodes in a communication system is provided. The method includes determining a node in the communication system is in a HANDSHAKE state; randomly configuring the node in one of a master mode and a slave mode based on a determination that the node is in the HANDSHAKE state; determining if the node is in a LINK-UP state with a selected node in the communication system based on the random configuring of the node; and randomly re-configuring the node in one of the master mode and the slave mode based on a negative determination that the node is in the LINK-UP state with the selected node.