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AssigneeTexas Instruments Incorporated
InventorsHiep V. Tran, Richard X. Gu
Estimating the term…
In a fast adaptive filter unit, an update unit replaces the multiplier unit which generates a product of the filter constant, the error signal and data signal and adding this product to a previously generated coefficient with a reduced complexity unit. The reduced complexity unit determines the sign of the product and whether the product is zero or non-zero. As a result of this determination a two bit signal is generated which is used to either increment or decrement the count in a register in the counter unit. The count held by the register is the coefficient signal, the coefficient signal being updated by each additional operation. In order to prevent the register from over-flowing, a second counter applies a signal periodically to the counter unit which decrements the magnitude of coefficient signal stored in the register by one count.
In an adaptive filter unit, an update unit associated with each stage of said adaptive filter unit, said update unit comprising:
In an adaptive filter unit, a method of generating an update coefficient signal for each stage of said adaptive filter unit, said method comprising the steps of:
In an adaptive filter unit, a method of generating an update coefficient signal for each stage of said adaptive filter unit, said method comprising the steps of:
An update unit associated with each stage of an adaptive filter unit, said update unit comprising:
Dependencies are inferred from the claim text.