Patent ID: 7675964
Filing Date: 2010-03-09
Classification: H04B,H04L

Abstract:
1. A method for transmitting a plurality of different information symbols between a first transceiver and a second transceiver by modulating a carrier signal, wherein a different modulation index is assigned to each one of the different information symbols, each of the information symbols conveying different type data, and the modulation indices identifying a type of the conveyed data based on an amplitude of the amplitude modulation index, at least one characteristic physical variable of the carrier signal is modulated in accordance with the different modulation indices assigned respectively to the different information symbols that are modulated onto the carrier signal to produce a modulated signal, and the modulated signal is transmitted from the first transceiver to the second transceiver, and the second transceiver evaluates the modulated signal to obtain the conveyed different types of data.