Patent ID: 6301306
Filing Date: 2001-10-09
Classification: H04B,H04L,H04W,Y02D

Abstract:
A system for generating a short-range wireless data communication link through an over-the-air channel on a predetermined radio frequency carrier comprising:a transmitting unit that transmits an operating signal, the transmitting unit comprising:a clock source that provides a data clock;a data source that provides data;a subcarrier modulator coupled to the data source;a subcarrier source coupled to the subcarrier modulator;a radio frequency carrier source that operates on the predetermined radio frequency carrier;a dither unit coupled to the radio frequency carrier source;an amplitude modulator coupled to the radio frequency carrier source and the subcarrier modulator; andan antenna segment coupled to the amplitude modulator; a receiving unit that receives the operating signal from the transmitting unit, the receiving unit comprising:an antenna segment that receives the operating signal through an over-the-air channel on the predetermined radio frequency carrier;a radio frequency bandpass filter coupled to the antenna segment;an envelope detector coupled to the radio frequency bandpass filter;an intermediate frequency amplifier coupled to the envelope detector; anda subcarrier demodulator coupled to the intermediate frequency amplifier;wherein the transmitting unit is adapted to operate at the predetermined radio frequency carrier to transmit the operating signal carrying the data, and wherein the receiving unit is adapted to operate at the predetermined radio frequency carrier to receive the operating signal carrying the data.