Patent ID: 6920177
Filing Date: 2005-07-19
Classification: H04N

Abstract:
1. An apparatus for encoding a sequence of video frames, comprising: a mode selection component, said mode selection component outputs an input macroblock; an intraframe mode (I-mode) multiple description coding (MDC) component switchably connected to said mode selection component, said I-mode MDC outputs a first I-mode description and a second I-mode description; a prediction mode (P-mode) MDC component switchably connected to said mode selection component, said P-mode MDC outputs a first P-mode description and a second P-mode description; a first redundancy allocation component connected to said mode selection component, said I-mode MDC component and said P-mode MDC component, said first redundancy allocation component provides inputs for controlling the allocation of the macroblock between the I-mode MDC and the P-mode MDC; a rate control component connected to said mode selection, I-mode MDC, R-mode MDC and first redundancy allocation components, said rate control component provides inputs for controlling the number of bits used to represent the macroblock; and a plurality of frame buffers connected to said mode selection component and P-mode MDC components.