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:
Feb. 06, 2001
Filed:
Feb. 17, 1999
Yoshitaka Utsumi, Kanagawa, JP;
Cuong Tran, Howell, NJ (US);
NCR Corporation, Dayton, OH (US);
Abstract
An electronic price label which is suitable for use in both small EPLs having lengths of about 1.5 to 2 inches and large size EPLs having lengths of about 3 to 4 inches. The antenna includes a folded planar conductor including a generally planar radiator portion coupled to a antenna port on a printed circuit board, a generally planar ground plane portion coupled to a ground on the printed circuit board having a width and oriented generally parallel to the radiator portion, and a dielectric layer between the radiator portion and the ground plane portion. The width of the ground plane portion is larger than the width of the radiator portion by a distance sufficient to produce an electric field which is linearly polarized in the width direction, thereby eliminating a need for shielding.