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. 30, 2007
Filed:
Apr. 04, 2003
Brett Anthony Cheng, Vancouver, CA;
Brett Anthony Cheng, Vancouver, CA;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A method for creating an ink-trail and implementing a partial ink layer in a pen based computing apparatus is described. The partial ink layer, which is smaller than a display window of a computing apparatus, is located at a starting address with a shape and size that fits within the display widow. An ink trail is created within the ink layer that simulates ink flowing from the pen to paper while a character, or several cursive characters, is formed by the pen while touching a touch screen overlaying the display screen of the computing apparatus. The ink trail is erased when the pen is removed from the touch screen. The bit depth of the pixels in the partial ink layer are less than for the pixels of the main display and can be as few as 2, which includes a transparency bit.