PATENT CLAIM ANALYSIS

Application Number: 15757939
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-11
Patent Classification: ["381", "096000"]

Abstract:
A method for compensating for acoustic influence of a listening room on an acoustic output from an audio system including at least a left and a right loudspeaker, the method comprising determining a left frequency response and a right frequency response, designing left and right compensation filters, and during playback applying the left and right filters to left and right input signals. The method further includes determining mono and side responses and designing mono and side compensation filters, and, during playback, applying the mono compensation filter to a mono signal based on the left and right input signals, and applying the side compensation filter to a side signal based on the left and right input signals. The filters are thus combined to provide left and right output signals which have been left/right filtered and mono/side filtered.

Claim (Index 31):
An audio system including:\n at least a left and a right loudspeaker arranged in a listening room; at least one microphone arranged in a listening position; a signal processing system for compensating for acoustic influence of the listening room on an acoustic output from the loudspeakers, said signal processing system being configured to: apply a test signal to the left speaker, determine a power average based on a signal measured in the microphone, and determine a left frequency response LP L  between the test signal and the power average, apply a test signal to the right speaker, determine a power average based on a signal measured in the microphone, and determine a right frequency response LP L  between the test signal and the power average, design a left compensation filter F L , and design a right compensation filter F R ; wherein the signal processing system is further configured to:\n determine a filtered mono response LP M  according to LP L  F L +LP R  F R , \n determine a filtered side response LP S  according to LP L  F L \u2212LP R  F R , \n wherein LP L  is the left response, LP R  is the right response, F L  is the left filter and F R  is the right filter, \n design a mono compensation filter F M  based on the filtered mono response LP M  and a target function, and \n design a side compensation filter F S  based on the filtered side response LP S  and a target function; and \n wherein the system further comprises a filtering system configured to, during playback:\n receive a left signal input and a right signal input, \n apply the left compensation filter to a left filter input, apply the right compensation filter to a right filter input, apply the mono compensation filter to a mono signal based on the left and right input signals, and apply the side compensation filter to a side signal based on the left and right input signals.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 2.51724
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15757927', '15522699', '13244043', '11392750', '11394467']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7137820577840962
- 35 USC 102 Novelty (BERT): 0.5775985360487712
- Combined Prediction Score: 0.7001637056105637
- Mean Citation Score: 242.492214
- Max Citation Score: 464.13724
- Similarity Product: 435.3827907586242

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