Patent ID: 8036625

Claim:
A method of mixing an information signal, comprising: generating a digital information signal at a sampling frequency f s ; and generating a mixed signal as a multiplication of the digital information signal with a mixing signal at the sampling frequency f s , wherein the mixing signal corresponds to a sinusoid having a frequency f m equal to f s /8, and wherein generating the mixed signal comprises repeatedly generating the following sequence: the digital information signal, the digital information signal multiplied by a quantized representation of √{square root over (2)}/2, the value 0, the digital information signal multiplied by a quantized representation of −√{square root over (2)}/2, the digital information signal with its sign changed, the digital information signal multiplied by the quantized representation of −√{square root over (2)}/2, the value 0, and the digital information signal multiplied by quantized representation of √{square root over (2)}/2.