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:
Nov. 04, 1997
Filed:
Jun. 20, 1995
Isao Takita, Fujisawa, JP;
Tsutomu Furuhashi, Yokohama, JP;
Hiroyuki Mano, Chigasaki, JP;
Shigeyuki Nishitani, Yokohama, JP;
Masaaki Kitajima, Hitachioota, JP;
Satoru Tsunekawa, Higashimurayama, JP;
Toshio Futami, Mobara, JP;
Tatsuzo Hamada, Hadano, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A display device integrated with an input device comprises a display panel having picture elements being scanned line-at-a-time, a detector for detecting a voltage pulse applied on one of the picture elements through electrostatic coupling, a first circuit for applying a voltage pulse of a type differing with a plurality of regions into which the display panel are divided, on electrodes associated with the picture element in one of the plurality of regions during the non-display period, a second circuit for determining a region of the picture element by the type of the voltage pulse detected by the detector, a fourth circuit for determining a relative X coordinate in the determined region by counting clock pulses synchronized with sequential application of a voltage on electrodes until the fourth circuit receives the voltage pulse detected by the detector during the non-display period, and a fifth circuit for determining an absolute X-coordinate by the determined region and the relative X-coordinate.