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:
Aug. 03, 2010
Filed:
Mar. 31, 2007
Amir Peleg, Hod Hasharon, IL;
Daniel Wajcer, Beit-Yehoshua, IL;
Itay Lusky, Hod Hasharon, IL;
Naftali Sommer, Rishon Letzion, IL;
Nohik Semel, Kfar Saba, IL;
Amir Peleg, Hod Hasharon, IL;
Daniel Wajcer, Beit-Yehoshua, IL;
Itay Lusky, Hod Hasharon, IL;
Naftali Sommer, Rishon Letzion, IL;
Nohik Semel, Kfar Saba, IL;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A novel apparatus for and method of estimating the cable length of an active network link. The cable diagnostics mechanism of the invention is particularly suited for use in estimating the length of Ethernet network between two edges when the link is active, i.e. data is being transmitted in both directions simultaneously and the transmission of test pulses is not possible. The cable length estimation mechanism of the present invention is based on a well-known property of the spectrum of the insertion loss of the cable, namely, the linear relationship between the attenuation of the cable at a given frequency in decibels and the cable length. Information characterizing this relationship is extracted and used to determine the length of the cable.