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:
Apr. 22, 2003
Filed:
Jun. 29, 1998
R. Ashby Armistead, Los Altos, CA (US);
Trevor Alan Schulze, Mountain View, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A circuit for communicating digital data is disclosed. The circuit can connect with up to 12 digital data lines (L through L ) for communication under a T or E standard. Control processor selects the appropriate communication standard to be used by each framer/line interface processor F through F , and communicates these over control bus Control processor also selects an appropriate line impedance for each line input/output circuit IO0 through IO , and communicates this information over control bus to control logic Control logic uses control lines to electronically select the impedance for each line input/output circuit IO0 through IO . Circuit can be easily configured or reconfigured to receive data with different data formats and line impedances. In one preferred embodiment, each framer/line interface processor and line input/output circuit can be independently controlled, such that multiple communication formats can be simultaneously processed by circuit