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:
Sep. 23, 2003
Filed:
Aug. 20, 1999
Naader Hasani, Ottawa, CA;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A system and method for pentad-based processing are disclosed for efficient processing of DS3 data by converting a DS3 frame to pentad and shuffling the overhead bit in the pentad. A framer searches for F-bits in detecting the column boundary alignment and M-bits in detecting the row boundary alignment to produce a control signal to a barrel shifter for adjusting the overhead bit position to the most significant bit position of a pentad. The F-bits and M-bits alignments require that F-bits or M-bits are detected in a predetermine number of consecutive frames. Upon proper framing, a converter converts the pentad back to a DS3 frame at the output for processing with other interfaces.