PATENT CLAIM ANALYSIS

Application Number: 15974218
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["375", "224000"]

Abstract:
Apparatuses (and methods of manufacturing same), systems, and methods concerning polyphase digital filters are described. In one aspect, an apparatus is provided, including at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients. In one aspect, the apparatus is a polyphase finite impulse response (FIR) digital filter, including an interpolator and a decimator, where each of the interpolator and the decimator have at least one pair of subfilters, each having symmetric coefficients, and a lattice comprising two adders and feedlines corresponding to each of the at least one pair of subfilters, each having symmetric coefficients.

Claim (Index 1):
A method for a polyphase interpolator, comprising:\n receiving, by a bank of R subfilters, each of N samples in parallel as input to the polyphase interpolator, wherein the bank of R subfilters comprises one or more pairs of subfilters, where each pair of subfilters has symmetric coefficients; adding outputs of a first subfilter and a second subfilter in one of the one or more pairs of subfilters and providing the added outputs as parallel input to a parallel-to-serial (P2S) converter; and subtracting the output of the second subfilter from the output of the first subfilter in the one of the one or more pairs of subfilters and providing the result of the subtraction as parallel input to the P2S converter, wherein the symmetric coefficients of each of the one or more pairs of subfilters are transformed from an initial pair of antisymmetric coefficients h m  and h R\u2212m , R being a total number of subfilters, and m being a subfilter index, where m=1, 2, . . . , R.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 93.0
- Lexical Diversity: 2.70588
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15402651', '14799950', '12535133', '14226296', '12932170']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5025537327745389
- 35 USC 102 Novelty (BERT): 0.55758165454582
- Combined Prediction Score: 0.508056524951667
- Mean Citation Score: 288.106088
- Max Citation Score: 466.49747
- Similarity Product: 326.4974785547388

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test