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:
Apr. 17, 2007
Filed:
Aug. 12, 2004
Applicants:
Danny F. Ammar, Windermere, FL (US);
Heung K. Tsang, Lake Mary, FL (US);
Inventors:
Danny F. Ammar, Windermere, FL (US);
Heung K. Tsang, Lake Mary, FL (US);
Assignee:
Xytrans, Inc., Orlando, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04H 1/00 (2006.01); H04B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to indoor/outdoor wireless communication systems and methods. Communications between an indoor unit and outdoor unit do not require telemetry tones. The input DC voltage level from the indoor unit is reduced to a level below the normal operating range for the outdoor unit. This is recognized by the outdoor unit as a signal to start receiving telemetry data, which is sent from the indoor unit to the outdoor unit by modulating the transmit signal.