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:
Jun. 15, 2021
Filed:
Mar. 27, 2020
Neptune Technology Group Inc., Tallassee, AL (US);
Gary Wayne Hamilton, II, Auburn, AL (US);
Steven Donald Bragg, Tallassee, AL (US);
Neptune Technology Group Inc., Tallassee, AL (US);
Abstract
A system includes a radio frequency (RF) receiver having an input, and an antenna terminal configured to connect to an antenna. The system further includes one or more switches that switch the receiver input of the RF receiver to connect to a terminating load that is not an antenna or to an internal antenna, and noise level measurement circuitry that measures a first RF noise level across the terminating load or the internal antenna. The one or more switches further switch the receiver input of the RF receiver to connect to the antenna terminal, and the noise level measurement circuitry further measures a second RF noise level received at the antenna terminal. The system also includes a controller that determines whether an external antenna is connected to the antenna terminal based on the first RF noise level and the second RF noise level.