Loading patent…
AssigneeTexas Instruments Incorporated
InventorKeith E. Larson
Estimating the term…
For most `natural` signals like audio and video, the first derivative with respect to time (or spatially as in video) can have a significant amount of error and still be perceived as accurate due to the masking properties of the ears and eyes. A Logarithmic Differential Compression (LDC) data stream representation of the first derivative is formed with four or less bits of mantissa and can be treated as both a logarithmic numeric representation and a floating point numeric representation without correction. A digital signal processor 524 is described which performs multiplication of LDC data with a simple scalar adder 600 and addition of LDC data with a simple four or less bit floating point adder 610. A digital signal processor is optimized to process LDC data and low cost arrays of these digital signal processors are formed to provide high performance systems for transforms and filtering.
A method for processing an input signal, comprising the steps of:
A method for processing analog signals, comprising the steps of:
A digital processing circuit comprising:
A digital processing system comprising:
A digital processing system comprising:
Dependencies are inferred from the claim text.