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. 05, 2016
Filed:
Jan. 10, 2014
Applicant:
Luidia, Inc., San Carlos, CA (US);
Inventors:
Yao Ding, San Jose, CA (US);
Jacob Harel, Redwood City, CA (US);
Assignee:
PNF CO., LTD., Belmont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/033 (2013.01); H01L 41/00 (2013.01); H02N 2/00 (2006.01); G06F 3/0354 (2013.01); G06F 3/043 (2006.01);
U.S. Cl.
CPC ...
G06F 3/03545 (2013.01); G06F 3/0433 (2013.01);
Abstract
A stylus that includes a tip portion that has a cavity. The cavity has a plurality of holes at a first end and a transmitter of acoustic, e.g., ultrasound waves at the end longitudinally opposite the first end. The tip portion has a tip. The tip end is less than a quarter of a wavelength from the exit ends of the holes. When the end of the tip is placed against a working surface, the acoustic waves travel from the transmitter through the cavity, exit the holes and travel less than a quarter of a wavelength to the working surface relatively close to the tip.