Patent ID: 6275176
Filing Date: 2001-08-14
Classification: H03M

Abstract:
Apparatus for arithmetically encoding a digital information signal, comprising:input means for receiving the digital information signal;arithmetic coder means having a first input for receiving the information signal as an input signal, a second input for receiving a probability signal, and an output for supplying an output signal, the arithmetic coder means compressing the input signal in response to the probability signal so as to obtain the output signal;probability signal generation means for generating the probability signal for the arithmetic coder means; andmeans for switching the arithmetic coder means into an encoding mode, the switching means including overruling means for overruling the probability signal to the arithmetic coder means and applying a predetermined and fixed probability signal to the arithmetic coder means, for encoding the one or more symbols of the input signal, which are substantially identical to the symbols of the input signal.