PATENT CLAIM ANALYSIS

Application Number: 16167373
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["381", "022000"]

Abstract:
A method for hybrid speech enhancement which employs parametric-coded enhancement (or blend of parametric-coded and waveform-coded enhancement) under some signal conditions and waveform-coded enhancement (or a different blend of parametric-coded and waveform-coded enhancement) under other signal conditions. Other aspects are methods for generating a bitstream indicative of an audio program including speech and other content, such that hybrid speech enhancement can be performed on the program, a decoder including a buffer which stores at least one segment of an encoded audio bitstream generated by any embodiment of the inventive method, and a system or device (e.g., an encoder or decoder) configured (e.g., programmed) to perform any embodiment of the inventive method. At least some of speech enhancement operations are performed by a recipient audio decoder with Mid/Side speech enhancement metadata generated by an upstream audio encoder.

Claim (Index 1):
A method, comprising:\n receiving mixed audio content, wherein the mixed audio content includes at least a mid-channel mixed content signal and a side-channel mixed content signal, wherein the mid-channel signal represents a weighted or non-weighted sum of two channels of a reference audio channel representation, and wherein the side-channel signal represents a weighted or non-weighted difference of two channels of the reference audio channel representation; decoding, by an audio decoder, the mid-channel signal and the side-channel signal into a left channel signal and a right channel signal, wherein the decoding includes decoding based on speech enhancement metadata, wherein the speech enhancement metadata includes a preference flag which indicates at least a type of speech enhancement operation to be performed on the mid-channel signal and the side-channel signal during decoding, and wherein the speech enhancement metadata further indicates a first type of speech enhancement for the mid-channel signal and a second type of speech enhancement of the mid-channel signal; and generating an audio signal that comprises the left channel signal and the right channel signal for the one or more portions of the decoded mid channel signal and side-channel signal of the mixed audio content, wherein the method is performed by one or more computing devices.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 97.0
- Lexical Diversity: 2.11111
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14914572', '13122880', '12677383', '11367886', '15000902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.703373063353511
- 35 USC 102 Novelty (BERT): 0.5723792192746641
- Combined Prediction Score: 0.6902736789456263
- Mean Citation Score: 253.678298
- Max Citation Score: 472.89847
- Similarity Product: 404.2951093960178

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