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.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Aug. 05, 2005
David Masao Atoji, Apex, NC (US);
David Masao Atoji, Apex, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a network node, a method and apparatus assemble fixed cell length cells resulting from the segmenting of variable length frames into cells. A finite state machine fetches frame data moves frame data and control block data to the cell and outputs cell data. A counter points to the frame. A multiplexer selects the correct data to form the cell. The finite state machine builds cells corresponding to a frame using a cell pattern applied to these cells using two constraints. The first constraint is a 64 unit cell size with a 6 unit cell header and 10 unit frame header; the second constraint is that the insert and overlay field have to be even. The method replaces a field by a definite value when a frame is modified during the segmenting processing, when a new field is inserted in the frame or when frames are packed into one cell.