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:
Jun. 17, 2003
Filed:
Mar. 31, 1999
Steven Scott Gorshe, Beaverton, OR (US);
Robert Wesley Brooks, Aloha, OR (US);
NEC America, Inc., Melville, NY (US);
Abstract
A SONET network interface for interconnecting a high speed unit (HSU) with low speed interface units (LSUs) is provided for enabling transmission of signals therebetween. The interface includes: a bus for interfacing the HSU with each of the LSUs to enable transmission of signals from each of the LSUs to the HSU, and reception of the signals from the HSU to each of the LSUs, wherein the HSU, LSUs, and the bus are contained in a primary shelf. The network interface also has secondary shelves, each containing secondary LSUs and an intershelf ring interconnection (IRI) bus connecting the primary shelf and each of the secondary shelves in series for exchanging data between the HSU of the primary shelf and each of the secondary shelves. Wherein the IRI bus has full access to the bandwidth of each of the at least one secondary shelves and each series connection between shelves comprises a drop bus for transmitting data to the next shelf in the series and an add bus for receiving data from the next shelf in the series and accumulating the received data from each of the at least one secondary shelves for transmission through the series and to the primary shelf.