PATENT CLAIM ANALYSIS

Application Number: 16166976
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["704", "201000"]

Abstract:
The invention relates to a codec and a signal classifier and methods therein for signal classification and selection of a coding mode based on audio signal characteristics. A method embodiment to be performed by a decoder comprises, for a frame m: determining a stability value D(m) based on a difference, in a transform domain, between a range of a spectral envelope of frame m and a corresponding range of a spectral envelope of an adjacent frame m−1. Each such range comprises a set of quantized spectral envelope values related to the energy in spectral bands of a segment of the audio signal. The method further comprises selecting a decoding mode, out of a plurality of decoding modes, based on the stability value D(m); and applying the selected decoding mode.

Claim (Index 52):
The classifier according to  claim 48 , wherein the stability value D(m) is determined as D \ue8a0 ( m ) = 1 b end - b start + 1 \ue89e \u2211 b = b start b end \ue89e ( E \ue8a0 ( m , b ) - E \ue8a0 ( m - 1 , b ) ) 2 where b i  denotes a spectral band in frame m, and E(m,b) denotes an energy measure for band b in frame m.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 97.0
- Lexical Diversity: 2.05634
- Patent Class: 704.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15488967', '14649573', '15797725', '15304733', '14952902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2826532080850781
- 35 USC 102 Novelty (BERT): 0.543345388055642
- Combined Prediction Score: 0.3087224260821345
- Mean Citation Score: 297.856326
- Max Citation Score: 381.0269
- Similarity Product: 321.67624606249933

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

Dataset: test