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:
Jul. 14, 1992
Filed:
Jan. 03, 1991
Bruce F Bogner, Mount Holly, NJ (US);
Brehn Corporation, Mount Holly, NJ (US);
Abstract
An electronic game apparatus which includes a playing board having a playing surface and playing areas and is capable of identifying game pieces and their position on the playing surface. First and second sets of parallel transmission lines are located beneath the playing surface of the playing board. The second set of parallel transmission lines is orthogonal to the first set of transmission lines. The first and second sets of transmission lines form intersecting points which are positioned proximate to a playing area of the playing surface. A source of electromagnetic energy has a plurality of predetermined different frequencies within a predetermined frequency range. A plurality of game pieces, each containing a resonant circuit having a predetermined resonant frequency, correspond to a frequency within a predetermined frequency range. A selector sequentially supplies electromagnetic energy at a selected frequency within the predetermined frequency range to the first set of transmission lines. A detector connected to the second set of transmission lines determines the presence of a game piece by detecting electromagnetic energy at a frequency within the predetermined frequency range on one of the transmission lines.