Digital filter using memory to emulate variable shift register

Details Digital filter using memory to emulate variable shift register Digital filter using memory to emulate variable shift register

2004-06-18

2009-06-16

Malzahn, David H (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07548941

ABSTRACT:
A digital filter uses memory to emulate a variable shift register. Data samples are stored in a memory. The data samples are read from the memory, multiplied with corresponding coefficients stored in the same or a different memory, logically shifted, and written back into the memory so as to emulate a variable shift register. The data samples can be logically shifted by one or more bits at a time.

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David H. Malzahn, Examiner, Art Unit 2193 U.S. Office Action dated Mar. 9, 2009. U.S. Appl. No. 11/061,353.

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