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:
Dec. 02, 2008
Filed:
Mar. 18, 2004
Stephen R. Carsello, Plantation, FL (US);
Bradley J. Rainbolt, Sunrise, FL (US);
Stephen R. Carsello, Plantation, FL (US);
Bradley J. Rainbolt, Sunrise, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method (or) and system of reducing collisions in an asynchronous communication system can include the steps at a transmitter () of generating () a set of known preamble waveforms and transmitting () at least one distinguishable preamble waveform based on an association with a call type and a receiver identifier. The method () can also include the steps at a receiver () of receiving () at least one preamble waveform among a set of different preamble waveforms which toggle between two symbol frequencies, the different preamble waveforms being distinguishable by at least having one among a different symbol frequency spacing and a different symbol toggling duty cycle. The method further includes the step of selecting () to decode a preamble waveform based on at least one among the different symbol frequency spacing and the different symbol toggling duty cycle.