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.:

US 7031225 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 18, 2006

Filed:

Mar. 21, 2003
Applicant:

William J. Mcdonald, Eldridge, IA (US);

Inventor:

William J. McDonald, Eldridge, IA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 47/00 (2006.01); G04C 11/02 (2006.01); G08B 23/00 (2006.01); H04B 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

The described invention combines wireless transmission and reception technologies with athletic event timers to remove and reduce human and environmental factors that interfere with the athletic event timekeeping process for improvement of the process. The system controls and communicates the timing of a single athletic event between the timekeeping mechanism and the referee using at least one timing communicator with a transmitter and a channel selector. The transmitter is adapted to transmit a wireless electromagnetic radiation signal from outside the field of play to the field of play to a mobile field communicator having a receiver and channel selector also responsive to the channel selector. The mobile field communicator is adapted to be carried by the umpire or referee on the field of play and to receive the wireless signal from outside the field of play and emit an actuation signal in response thereto. The mobile field communicator and timing communicator channel selectors can be synchronized to produce the assignment of a unique address to allow the mobile field communicator and timing communicator to operate independently and securely without interference from other similar mobile field communicator and timing communicator devices in use within range of the system.


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