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:
Feb. 05, 2002
Filed:
Apr. 05, 2000
Applicant:
Inventors:
Rupert Rohrböck, Martinsdorf, AT;
Josef Wurzer, Vienna, AT;
Assignee:
AKG Acoustics GmbH, Vienna, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 ; G01N 2/7416 ; G06F 1/900 ;
U.S. Cl.
CPC ...
H02J 7/00 ; G01N 2/7416 ; G06F 1/900 ;
Abstract
A method and apparatus for determining the remaining operating time of an appliance powered by batteries or accumulators determine and indicate the remaining operating time by measuring and evaluating the battery voltage wherein an EEPROM is provided which stores the value of the battery voltage at the instant of switching off the appliance.