Method and apparatus for converting an analog signal to a...

Details Method and apparatus for converting an analog signal to a... Method and apparatus for converting an analog signal to a...

H - Electricity

03

M

354/70

H03M 3/02 (2006.01)

Patent

CA 1271995

ABSTRACT An oversampling technique for converting an analog signal to a digital signal is described. Firstly, an input analog signal is oversampled at a first frequency higher than the Nyquist frequency to produce a sampled signal. Then a local decoded signal is subtracted from the sampled signal. The subtracted signal is then quantized into a quantized binary signal. The local decoded signal is generated by integration of the quantized binary signal. The quantized binary signal having the first frequency is converted into a frequency-reduced signal having a second frequency which is then integrated to provide a converted digital signal. High precision linear coding is achieved by the invention.

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