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 8350720 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 08, 2013

Filed:

Aug. 20, 2008
Applicants:

Dave Thomas, Wauconda, IL (US);

Barry Markman, Las Vegas, NV (US);

Inventors:

Dave Thomas, Wauconda, IL (US);

Barry Markman, Las Vegas, NV (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/00 (2006.01); G08G 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vehicle to vehicle warning system comprises a transmitter associated with a primary vehicle alerting one or more secondary vehicles of its proximity through a receiver. The transmitter may emit a radio frequency signal which activates radio frequency receivers in surrounding vehicles. When in appropriate proximity, the signal is configured to initiate a warning at the secondary vehicle, such as light from a light-emitting device or sound from a sound-generating device. In another form, the primary vehicle includes a passive transmitter and the secondary vehicle includes a multi-frequency resonance tag/circuit having distinct frequencies for detection and discrimination. The passive transmitter creates electromagnetic waves which are generated as it passes by the secondary vehicle housing the multi-frequency resonance tag, setting off the secondary vehicle alarm system.


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