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:
Jul. 12, 2005
Filed:
Apr. 01, 2002
Steven M. Robinson, Madison, AL (US);
Ralph R. Boudreaux, Jr., Madison, AL (US);
John S. Mcgary, Petersburg, TN (US);
John B. Wilkes, Jr., Harvest, AL (US);
Steven M. Robinson, Madison, AL (US);
Ralph R. Boudreaux, Jr., Madison, AL (US);
John S. McGary, Petersburg, TN (US);
John B. Wilkes, Jr., Harvest, AL (US);
Adtran, Inc., Hunstville, AL (US);
Abstract
A power management circuit for a remote access platform extracts power from a wireline for powering a ring generator that generates a ringing voltage signal that is distributed to a plurality of subscriber circuits. A power-limited voltage converter steps up the wireline voltage to a higher 'isolating' voltage, charging a capacitor coupled to the ring generator. A monitor circuit reduces the power that the power-limited voltage converter can draw, if the wireline voltage drops too low. This prevents the wireline voltage from collapsing should the remote terminal be deployed at a distance from wireline voltage source (the central office) greater than its specified capability.