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. 03, 2003
Filed:
May. 08, 2001
Applicant:
Inventors:
Alistair Malcolm Macdonald, Oldsmar, FL (US);
Joseph Q. Chapman, Seminole, FL (US);
Assignee:
Paradyne Corporation, Largo, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/24 ; H04B 1/700 ;
U.S. Cl.
CPC ...
H04M 1/24 ; H04B 1/700 ;
Abstract
A communication device transmits very low frequency signals in order to help diagnose the cause of a communication problem in a DSL communication system. The communication problem may be, for example, the inability of a remote data transceiver unit (DTU-R) to successfully train-up with a central data transceiver unit (DTU-C). The very low frequency signals may be used to communicate the status or settings of the remote transceiver unit to the DTU-C, to download settings parameters or executable code to the DTU-R, or to coordinate the transmission of testing signals.