View source for 18223349. FIR FILTER, FILTERING METHOD BY FIR FILTER, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM simplified abstract (NEC Corporation)

=FIR FILTER, FILTERING METHOD BY FIR FILTER, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM=


==Organization Name==

[[:Category:NEC Corporation|NEC Corporation]]


[[Category:NEC Corporation]]

==Inventor(s)==

[[:Category:Eita Kobayashi of Tokyo (JP)|Eita Kobayashi of Tokyo (JP)]][[Category:Eita Kobayashi of Tokyo (JP)]]

==FIR FILTER, FILTERING METHOD BY FIR FILTER, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18223349 titled 'FIR FILTER, FILTERING METHOD BY FIR FILTER, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM

==Simplified Explanation==

The abstract describes an FIR filter with an address signal generation unit and an extraction unit. The address signal generation unit generates an address signal based on k bit values corresponding to k filter coefficients with a symmetric property. The extraction unit retrieves a computation result from a table based on the address value indicated by the address signal.

* Address signal generation unit generates address signal based on k bit values corresponding to k filter coefficients with symmetric property.
* Extraction unit retrieves computation result from table based on address value indicated by address signal.
* Table contains multiple computation results where sets of results indicating the same values among 2 to the power of k patterns are shared.
* Address values are associated with each other in the table.

### Potential Applications
* Digital signal processing
* Image processing
* Audio processing

### Problems Solved
* Efficient filtering of signals
* Simplified computation of filter coefficients

### Benefits
* Improved signal processing accuracy
* Reduced computational complexity
* Enhanced performance in various applications.


==Original Abstract Submitted==

An FIR filter includes: an address signal generation unit configured to generate an address signal of an address value in accordance with k bit values that correspond to k filter coefficients having a symmetric property; and an extraction unit configured to extract a computation result that corresponds to the address value indicated by the address signal from the table, in which, in the table, a plurality of computation results in which sets of computation results indicating the same values among 2 to the power of k patterns of computation results which are obtained by adding up k results of multiplication, the k results of multiplication being results obtained by multiplying each of k filter coefficients having a symmetric property by each of k bit values that correspond to k filter coefficients are commonly shared, and the plurality of address values are associated with each other.



[[Category:H03H17/02]]