MODESAT COMMUNICATIONS OU

Patent application number	Title	Published
MODESAT COMMUNICATIONS OU Patent applications
20100195701	Method of packet transmission and reception of Quadrature Amplitude Modulated signals in a frequency hopping radio system - A method to decrease the amount of time required to achieve carrier and clock frequency synchronization in QAD packet communications systems including frequency-hopping radio systems using pseudo-noise data sequences to mark the beginning of data transmissions and carrier frequency switches.	08-05-2010
20090232253	Method and system for creating quadrature modulation signal constellations with arbitrary spectral efficiency - Methods, systems, transmitters, and receivers implement and use Quadrature Amplitude Modulation QAM2N modulation types and constellations, where N is a real number, e.g., 1.5; 1.33; 2.5; 3.5. The methods, systems, transmitters, and receivers use constellations with the number of points on the circle not equal to a power of two, sending QAM signals of zero power together with other QAM signals, and/or sending sequences of QAM signals of different types.	09-17-2009