Patent ID: 7356085
Filing Date: 2008-04-08
Classification: H03M

Abstract:
1. A method of transmitting a digital signal, comprising: quantizing a source digital signal to generate at least a first and a second bit-stream each having a different quantization, wherein at least one of the first and second bit-streams has been generated by embedded quantization; transmitting at least one of the at least first and second bit-streams; and generating a dequantized digital signal from at least parts of one of the transmitted at least first and second bit streams; wherein the generating comprises combining the parts of the at least first and second bit-streams, the combined dequantized signal being generated by embedded dequantization in which at least two quantization levels and at least one quantization interval, at each quantization level, are provided, and wherein the at least one quantization interval is shorter than quantization intervals for dequantizing any of the at least first and second bit-streams.