PATENT CLAIM ANALYSIS

Application Number: 16454250
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-10
Patent Classification: ["381", "022000"]

Abstract:
A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.

Claim (Index 9):
An apparatus for reconstructing N original audio channels from M audio channels, the audio decoder comprising:\n an input interface for receiving a bitstream containing a parameter, \u03c6, and an encoded audio signal representing the M audio channels; a decoder for obtain a frequency domain representation of the M audio channels; an extractor for obtaining the parameter, \u03c6, from the bitstream; and a recontructor for generating at least one of the N original audio channels from the M audio channels based on:\n a\u2032=m  cos \u03c6+ s  sin \u03c6, \n where a\u2032 is the at least one reconstructed audio channel, m is one of the M audio channels, s is derived from a weighted or unweighted combination of the N original channels, \u03c6 is an angle representing amounts of signal m and s present in a\u2032, and M is equal to two.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 100.0
- Lexical Diversity: 2.0
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15426867', '15079653', '15498362', '15498384', '15498376']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7368493254833066
- 35 USC 102 Novelty (BERT): 0.5205926280677643
- Combined Prediction Score: 0.7152236557417524
- Mean Citation Score: 334.63362
- Max Citation Score: 336.1594
- Similarity Product: 278.24419096634387

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

Dataset: test