Patent ID: 6498818
Filing Date: 2002-12-24
Classification: H04L

Abstract:
Device for transmitting digital data by means of phase modulation comprising:a coding circuit that codes the data with a code after the fashion of the Differential Manchester Code, and a phase-modulation circuit that phase modulates the coded data, wherein the coding circuit comprises a data processor for converting input data into output data coded in accordance with the Differential Manchester Code, the data processor including a data input, a clock input, a data output, and a clock output, wherein the phase-modulation circuit comprises two flip-flops, an exclusive OR circuit, and a N:1 clock divider, each flip-flop including a data input, a clock input, and a data output, the exclusive OR circuit including two inputs and an output, and the N:1 clock divider including an input and an output, and wherein the data output of the data processor is connected to the data input of the first flip-flop, the clock output of the data processor is connected to the clock input of the first flip-flop, the clock input of the second flip-flop, and the input of the N:1 clock divider, the data output of the first flip-flop is connected to the first input of the exclusive OR circuit, the output of the N:1 clock divider is connected to the second input of the exclusive OR circuit, the output of the exclusive OR circuit is connected to the data input of the second flip-flop.