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:
Jul. 07, 2009
Filed:
Aug. 23, 2005
Rakesh Kumar Malik, New Delhi, IN;
Dev Shankar Mukherjee, New Delhi, IN;
Harsh Chilwal, Tallital, IN;
Dinesh Gupta, New Delhi, IN;
Rakesh Kumar Malik, New Delhi, IN;
Dev Shankar Mukherjee, New Delhi, IN;
Harsh Chilwal, Tallital, IN;
Dinesh Gupta, New Delhi, IN;
Transwitch Corporation, Shelton, CT (US);
Abstract
Combined hardware and software processing is applied in an end node of the network which includes mapping/demapping and deskewing. Most of the LCAS procedure is implemented in software so that it can be modified easily. Some of the procedure is implemented in hardware to meet stringent timing requirements. In particular, the handshaking protocol is implemented in software and the procedure for actually changing of the link capacity in response to the handshaking is implemented in hardware. The hardware and software communicate via a shared memory which includes a receive packet FIFO, receive control and status registers, a transmit packet FIFO, transmit control and status registers, and a transmit time slot interchange table.