Patent ID: 7212577

Claim:
A method of information transmission, including steps of: at the transmitting side: forming an analog signal from a sequence of digital information samples using a predetermined sampling function; and transmitting the formed analog signal to a communication line; and at the receiving side: receiving the analog signal from the communication line; and restoring from the analog signal the sequence of digital information samples using the predetermined sampling function; characterized in that the method further includes the steps of: at the transmitting side: forming a first and second analog signals from a first and second sequences of digital information samples; the first analog signal being formed from a difference of values of digital information samples of the first sequence and values of digital information samples of the second sequence taken in points of digital information samples of the first sequence; the second analog signal being formed from digital information samples of the second sequence taken in points of digital information samples of the second sequence, which are between the points of digital information samples of the first sequence; summing the first and second analog signals, and transmitting the summary analog signal to the communication line; and at the receiving side: restoring the first sequence of digital information samples by means of sampling the summary analog signal with a clock frequency; converting the first sequence of digital information samples using the predetermined sampling function to the analog signal of the first sequence; subtracting said analog signal of the first sequence from the summary analog signal; and restoring the second sequence of digital information samples from the obtained difference analog signal.