Matches 151 - 155 out of 155 < 1 2 3 4
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4479226 Frequency-hopped single sideband mobile radio system  
The present invention relates to a frequency-hopped single sideband (SSB) mobile radio system implemented by hopping the carrier frequency of an input signal (s(t)) every τ seconds. The hopping is...
4457003 Time reference tracking loop for frequency hopping systems  
A system for using phase modulated information carried by a pilot tone generated in the transmitter of a frequency hopping communications system to synchronize the receivers dehop schedule...
4442527 Synchronization systems  
A syncrhonization arrangement is disclosed for synchronizing a receiver with a transmitter whose frequency is hopping through a sequence of predetermined frequencies arranged pseudo-randomly. The...
4193030 Frequency hopping communication system  
A signal modulated with information is hopped to discrete frequencies and its phase is selected to be 0° or 180° in each frequency hop interval under control of a pseudo noise binary code signal...
3493865 FREQUENCY ENCODED DIGITAL TRANSMISSION WITH EACH ENCODED FREQUENCY CONTINUOUSLY SWEPT OVER A BAND OF FREQUENCIES  
Matches 151 - 155 out of 155 < 1 2 3 4