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. 07, 2014
Filed:
Nov. 10, 2009
Edward L. Schwartz, Sunnyvale, CA (US);
Kenneth F. Gudan, Sunnyvale, CA (US);
Edward L. Schwartz, Sunnyvale, CA (US);
Kenneth F. Gudan, Sunnyvale, CA (US);
Ricoh Co., Ltd., Tokyo, JP;
Abstract
A handheld portable printer includes members and a handle that are joined together to form a generally O-shaped device. The members provide a rigid and strong structure and an area for housing a projector to project an image on the print surface of the image to be printed. The bottom member houses a pair of absolute position sensors spaced apart and aligned upon the longitudinal axis on the bottom of the handheld portable printer. A controller is associated with the absolute position sensors to produce precise position information. The controller uses the precise position information to control the projection of the image to be printed and the printing of pixels by the print head. In one embodiment, the print head is controlled such that each pixel is printed at least twice. The present invention also includes a number of novel methods including: a method for printing an image with a handheld printer, a method for projecting an image to be printed, and a method for registering a location of a printer and portions of a printed image.