The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 25, 2012

Filed:

May. 19, 2009
Applicants:

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);

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 (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/212 (2006.01);
U.S. Cl.
CPC ...
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.


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