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. 01, 1999
Filed:
Nov. 04, 1996
Terence L Johnson, Austin, TX (US);
Peter R Molnar, Austin, TX (US);
Howard E Levin, Austin, TX (US);
Jeffrey P Gleason, Austin, TX (US);
Robin Wiprud, Austin, TX (US);
Sujit Sudhaman, Austin, TX (US);
Jody Everett, Buda, TX (US);
Michael R May, Austin, TX (US);
Carlos A Greaves, Austin, TX (US);
Mathew A Rybicki, Austin, TX (US);
Matthew A Pendleton, Cedar Park, TX (US);
John M Porter, Round Rock, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A transceiver (5) for an asymmetric communication system such as asymmetric digital subscriber line (ADSL) includes a configuration register (71) defining operation at either a central office (CO) or a remote terminal (RT). The configuration register (71) includes a control bit (72) for selecting either CO or RT mode. The transceiver (5) includes a signal processing module (70) configured according to the state of the control bit (72). For example, a digital interface (70) converts transmit data into transmit symbols and converts received symbols into receive data. The digital interface (70) uses a large memory (158) as a buffer in the transmit path and a small memory (160) as a buffer in the receive path in CO mode. In RT mode, the digital interface (70) uses the small memory (160) in the transmit path and the large memory (158) in the receive path. The selective configuration allows a single integrated circuit to be used in both CO and RT equipment.