PATENT CLAIM ANALYSIS

Application Number: 16001411
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-11
Patent Classification: ["381", "303000"]

Abstract:
An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.

Claim (Index 1):
An audio signal processing apparatus for processing an input audio signal, comprising:\n a memory configured to store a set of pairs of predefined left ear and right ear transfer functions predefined for a plurality of reference positions relative to a listener, the reference positions lying in a two-dimensional plane; a processor coupled to the memory and configured to determine a pair of left ear and right ear transfer functions on a basis of the set of pairs of the predefined left ear and right ear transfer functions for an azimuth angle and an elevation angle of a virtual target position relative to the listener; and an adjustment filter coupled to the memory and the processor and configured to filter the input audio signal on a basis of the determined pair of the left ear and right ear transfer functions and an adjustment function configured to adjust a delay between a left ear transfer function and a right ear transfer function of the determined pair of the left ear and right ear transfer functions and a frequency dependence of the left ear transfer function and the right ear transfer function of the determined pair of the left ear and right ear transfer functions as a function of the azimuth angle or the elevation angle of the virtual target position in order to obtain a left ear output audio signal and a right ear output audio signal, and a transmitter coupled to the memory and the processor and configured to transmit the left ear output audio signal and the right ear output audio signal to the listener to enable the listener to perceive the input audio signal arriving from the virtual target position defined by the azimuth angle and the elevation angle relative to the listener.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 94.0
- Lexical Diversity: 2.75926
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15362275', '10965130', '11664231', '09270768', '15404379']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.720055285173988
- 35 USC 102 Novelty (BERT): 0.5174303187958323
- Combined Prediction Score: 0.6997927885361723
- Mean Citation Score: 284.43619
- Max Citation Score: 328.86578
- Similarity Product: 267.09681176170346

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

Dataset: test