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:
Mar. 01, 2011
Filed:
Jan. 21, 2008
Samuel I. Green, St. Louis, MO (US);
Samuel I. Green, St. Louis, MO (US);
The Boeing Company, Chicago, IL (US);
Abstract
A method and apparatus for sensing radio frequency signals. A radio frequency strength sensing apparatus converts a sensed radio frequency signal to an audible tone. The apparatus comprises a radio frequency detector, a voltage to frequency converter, and a speaker system. The radio frequency detector is capable of detecting radio frequency signals over a selected frequency range with different signal strengths and capable of outputting a logarithmic voltage that varies with signal amplitude change. The voltage-to-frequency converter is connected to the radio frequency detector and is capable of producing an electrical signal waveform in the audio frequency range to generate the audible tone. The speaker system is connected to the voltage-to-frequency converter circuit, wherein the speaker system outputs the audible tone, with pitch of the tone related to the strength of the radio frequency signal.