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:
Jan. 08, 2002
Filed:
Nov. 04, 1998
Jong-Ho Ha, Kyungki-do, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A motor driving device for changing the current of the driving control signal of the carrier motor according to the consumption quantity of the ink in the inkjet printer includes a detector of an ink consumption quantity for outputting a comparative signal when a present ink quantity stored within the ink cartridge is less than the reference ink quantity, through counting each ink drop signal produced by at least one ink drop formed in each of a number of nozzles of the inkjet printer, to provide a count signal for comparison with a reference signal indicating the reference ink quantity, a voltage generator for outputting a motor driving control voltage having a variable voltage according to whether the comparative signal is produced by the detector, and a motor controller for outputting a plurality of phase control signals each having associated therewith a different driving current for driving the carrier motor according to the motor driving control voltage and according to at least one of first and second phase signals for the driving current for the carrier motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile