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:
Oct. 24, 2000
Filed:
Jan. 20, 1998
Jonas Bertil Bjurel, Bromma, SE;
Erik Anders Stenkvist, Bandhagen, SE;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
A method and system align frames of a digital link which interconnects two entities. Frames in which overhead is interleaved with payload are considered. The frame alignment is executed in two phases such that the actual frame alignment, in which a predetermined frame alignment word (FAW) is found, is preceded by a procedure called `column alignment`. The idea with column alignment is to find the positions for the overhead columns or overhead bits of a pending frame of payload and interleaved overhead. During column alignment the transmitting entity will send an easily detectable column alignment word (CAW) and the receiving entity will quickly recognize the overhead bit positions in the interleaved frame. When the positions for the overhead bits have been detected, the transmitting entity will start to send Normal Frames and the receiving entity will gain final frame alignment by finding the FAW in the overhead bit positions.