PATENT CLAIM ANALYSIS

Application Number: 16002367
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["084", "621000"]

Abstract:
There is provided a post processing technique or method for separation algorithms to separate vocals from monaural music recordings. The method comprises detecting traces of pitched instruments in a magnitude spectrum of a separated voice using Hough transform and removing the detected traces of pitched instruments using median filtering to improve the quality of the separated voice and to form a new separated music signal. The method further comprises applying adaptive median filtering techniques to remove the identified Hough regions from the vocal spectrogram producing separated pitched instruments harmonics and new vocals while adding the separated pitched instruments harmonics to a music signal separated using any separation algorithm to form the new separated music signal.

Claim (Index 6):
The system for improving singing voice separation of  claim 5 , wherein the system further comprises:\n generating a magnitude spectrogram of a mixture signal; converting the magnitude spectrogram to a grey scale image; applying a number of binarization steps to the grey scale image to generate a final binary image; implementing Hough transform to the final binary image; identifying horizontal ridges represented by Hough lines and calculating variable frequency bands of the identified horizontal ridges; calculating rectangular regions denoted here as Hough regions; generating a vocal spectrogram from vocal signals separated using any separation algorithm; applying adaptive median filtering techniques to remove the identified Hough regions from the vocal spectrogram producing separated pitched instruments harmonics and new vocals harmonics; adding the separated pitched instruments harmonics to a music signal separated using any separation algorithm to form the new separated music signal.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 94.0
- Lexical Diversity: 1.93443
- Patent Class: 84.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13612413', '12866159', '14984089', '12146971', '11535951']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5721522192579879
- 35 USC 102 Novelty (BERT): 0.4804710233736344
- Combined Prediction Score: 0.5629840996695525
- Mean Citation Score: 169.878898
- Max Citation Score: 220.75417
- Similarity Product: 176.30513946942685

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

Dataset: test