Patent ID: 6654406
Filing Date: 2003-11-25
Classification: H03J,H04B

Abstract:
A frequency hopping receiver for receiving and demodulating, in real time, a modulated and transmitted signal, the receiver comprising:a first frequency generator for receiving a first frequency control signal according to a first predetermined control, and generating a predetermined frequency first carrier wave used to generate a synthesized carrier wave for demodulating the received signal; a second frequency generator for receiving a second frequency control signal according to a second predetermined control, and generating a predetermined frequency second carrier wave used to generate the synthesized carrier wave for demodulating the received signal; a switch for switching between the first and second carrier waves in response to a carrier selection signal to produce a synthesized continuous carrier wave; a controller for generating the first and second frequency control signals for carrier generation and transmitting the first and second frequency control signals to the first and second frequency generators, respectively, when the transmitted signal is received, generating said carrier selection signal for selecting one of the first carrier wave generated by the first frequency generator or the second carrier wave generated by the second frequency generator and then selecting the other of the first carrier wave generated by the first frequency generator or the second carrier wave generated by the second frequency generator, and generating a demodulation control signal for initiating demodulation when the synthesized continuous carrier wave is produced by the switch; and a demodulator for demodulating the received signal in response to the synthesized continuous carrier wave from the switch and the demodulation control signal from the controller.