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:
Oct. 09, 2001
Filed:
Oct. 28, 1999
Lamar T. Baker, Manhattan Beach, CA (US);
Steven A. Buhler, Sunnyvale, CA (US);
Abdul M. Elhatem, Redondo Beach, CA (US);
Scott A. Elrod, La Honda, CA (US);
Babur B. Hadimioglu, Mountain View, CA (US);
Jaime Lerma, Murrieta, CA (US);
Mostafa R. Yazdy, Los Angeles, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An acoustic inkjet printhead utilizes a pulse width modulation to control droplet size or ejection velocity. An individual control pulse controls the duration and the time a RF signal is applied to each transducer. To modify the RF signal of each transducer, the pulse width of each control signal can be modified according to a predetermined correction data. The rising edge of the control data is delayed according to the correction data while the falling edge is kept the same.