| 摘要 |
<p>A method of communicating data from a first location (112) to a second location (e.g. 114 or 116) employing a vector quantization data compression technique that allows users to select the reproduction quality of the transmitted vector quantized data. According to the method, data is encoded (120) (compressed) from the last level of a first tree search vector quantization codebook at the first location (112). A second tree search vector quantization codebook is provided (126a, 126b) at the second location (114, 116) having a number of levels equal to or less than the number of levels in the first codebook. Vector quantized data received at the second location (114, 116) is truncated, if necessary, for use with the second codebook. The reproduction quality of the transmitted vector quantized data is a function of the number of levels in the second codebook.</p> |
