Pat.#5586145:		Transmission of electronic information by pulse position modulation utilizing low average power
INVENTORS:		Morgan; Harry C., Camarillo, CA 93010
		Boyd; William H., Newbury Park, CA 91320
ASSIGNEES:		none
ISSUED:		Dec. 17, 1996
FILED:		Nov. 10, 1994
ABSTRACT: A method and apparatus are shown for generating and transmitting very short and widely separated high frequency sine-wave pulses of electromagnetic energy into space. A transistor, a charging capacitor, and an inductor are coupled into a first series loop path to form a discharge circuit. A bias voltage source, the same charging capacitor, and a charging resistor are coupled into a second series loop path to form a recharging circuit. The bias voltage source is selected to be capable of biasing the forward conduction path of the transistor near its breakdown condition. An original information signal is sampled upon each occurrence of a periodic reference signal, and the transistor is then triggered into its breakdown or avalanche mode. The starting times of successive transmitted pulses are modified in accordance with a pulse position modulation protocol.