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:
Sep. 30, 2003
Filed:
Nov. 15, 2000
Kanya Matsumoto, Tokyo, JP;
Jiro Nakazono, Yamagata, JP;
Other;
Abstract
An input pen has an oscillator and a piezoelectric loudspeaker, a frequency/output-level setting circuit for setting a frequency or an output level of a ultrasonic wave oscillated from the oscillator, and a touch sensor for changing a set value of the frequency/output-level setting circuit. A touch panel device comprises microphones for sensing the frequency or the output level of the ultrasonic wave oscillated from the oscillator of the input pen at a touch position on a touch panel by the input pen; a microcomputer for setting attributes of input information in response to the frequency or the output level of the ultrasonic wave sensed by the microphones; and a PDP displaying device for displaying the input information on the flat display device based on the set attributes.