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. 09, 2013
Filed:
Mar. 30, 2010
Oren Shalita, Tel Aviv, IL;
Shlomy Chaikin, Moshav Mazor, IL;
Oren Shalita, Tel Aviv, IL;
Shlomy Chaikin, Moshav Mazor, IL;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Generally, 100BaseT allows for the establishment of links on cables (such as Category 5 or CAT5 cables) up to 120 m or more in length. In a given industrial Ethernet system, many of the cables deployed will be less than 120 m in length, and, in fact, many of the cables are much shorter than 120 m. Yet, the transmission amplitude output from each unit is generally the same, regardless of cable length. Here, Power Back Off (PBO) circuitry is provided in a unit that operates in a PBO mode to passively estimate a cable length and adjust its corresponding transmission amplitudes to generally match the estimated cable length so as to reduce power consumption.