18944255. Adaptive Gain-Shape Rate Sharing (Telefonaktiebolaget LM Ericsson (publ))
Adaptive Gain-Shape Rate Sharing
Organization Name
Telefonaktiebolaget LM Ericsson (publ)
Inventor(s)
Erik Norvell of Stockholm (SE)
Adaptive Gain-Shape Rate Sharing
This abstract first appeared for US patent application 18944255 titled 'Adaptive Gain-Shape Rate Sharing
Original Abstract Submitted
An improved gain-shape vector quantization is achieved by determining a number of bits to be allocated to a gain adjustment-and shape-quantizer for a plurality of combinations of a current bit rate and a first signal property. The bit allocation is derived by using an average of optimal bit allocations for a training data set. A number of bits to the gain adjustment and the shape quantizers for a plurality of combinations of the bit rate and a first signal are pre-calculated, and a table indicating the number of bits to be allocated to the gain adjustment-and the shape-quantizers for a plurality of combinations of the bit rate and a first signal property is created. In this way, the table can be used for achieving an improved bit allocation.