PATENT CLAIM ANALYSIS

Application Number: 15922419
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["700", "094000"]

Abstract:
Audio and video systems for checking safety sounds and telltales are provided. The audio system includes a digital signal processor with a plurality of safety sounds and a plurality of signatures corresponding thereto. A head unit controller includes a signature and volume checker to identify an expected signature of the one of the safety sounds. The digital signal processor outputs a mixed audio stream and includes a lower bit inserter to replace lower bits of the mixed audio stream with replacement lower bits based on the signature and output a modified audio stream. A lower bit extractor separates and outputs the replacement lower bits and a remainder of the modified audio stream. An audio amplifier unit receives and outputs the remainder of the modified audio stream. The head unit controller rebuilds the signature, determines whether the signature matches the expected signature, and sends an acknowledgment accordingly.

Claim (Index 7):
A method of operating an audio system comprising the steps of:\n receiving a message requesting that one of the plurality of safety sounds be played using the head unit controller; identifying an expected signature of the one of the plurality of safety sounds using a signature and volume checker of the head unit controller in response to receiving the message requesting that the one of the plurality of safety sounds be played; outputting a mixed audio stream using the digital signal processor; replacing a plurality of lower bits of the mixed audio stream with a plurality of replacement lower bits based on one of the plurality of signatures corresponding to the one of the plurality of safety sounds being requested using a lower bit inserter coupled to the digital signal processor; outputting a modified audio stream from the lower bit inserter using the digital signal processor; receiving the modified audio stream with a lower bit extractor coupled to the digital signal processor of the system on a chip; separating the plurality of replacement lower bits and a remainder of the modified audio stream using the lower bit extractor; outputting the plurality of replacement lower bits to the head unit controller and the remainder of the modified audio stream using the lower bit extractor; synchronizing the plurality of replacement lower bits to rebuild the one of the plurality of signatures using a synchro decoder of the head unit controller; comparing the one of the plurality of signatures to the expected signature using the head unit controller; determining whether the one of the plurality of signatures matches the expected signature using the head unit controller; sending an acknowledgment that the one of the plurality of safety sounds has been played to a vehicle system controller using the head unit controller in response to the one of the plurality of signatures matching the expected signature; and receiving the remainder of the modified audio stream for output with at least one vehicle speaker using an audio amplifier unit coupled to the at least one vehicle speaker.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 90.0
- Lexical Diversity: 2.34848
- Patent Class: 700.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15712659', '15669935', '11312789', '15631870', '10807805']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3940228577123047
- 35 USC 102 Novelty (BERT): 0.4752869075905381
- Combined Prediction Score: 0.4021492627001281
- Mean Citation Score: 151.31415800000005
- Max Citation Score: 158.82965
- Similarity Product: 105.18454476389287

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