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 1):
An audio system, comprising:\n a system on a chip including a digital signal processor having a safety sound memory unit to store a plurality of safety sounds and a plurality of signatures corresponding the plurality of safety sounds; a head unit controller coupled to the system on a chip and including a head unit memory unit storing the plurality of signatures and in communication with a vehicle communication bus; the head unit controller including a signature and volume checker to identify an expected signature of the one of the plurality of safety sounds in response to receiving a message requesting that the one of the plurality of safety sounds be played from the vehicle communication bus; the digital signal processor configured to output a mixed audio stream and including a lower bit inserter to replace 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 and output a modified audio stream from the system on a chip; a lower bit extractor coupled to the digital signal processor of the system on a chip and configured to receive the modified audio stream and separate and output the plurality of replacement lower bits and a remainder of the modified audio stream; an audio amplifier unit coupled to the lower bit extractor and to at least one vehicle speaker to receive the remainder of the modified audio stream for output with the at least one vehicle speaker; the head unit controller coupled to the lower bit extractor and configured to: synchronize the plurality of replacement lower bits from the lower bit extractor to rebuild the one of the plurality of signatures, compare the one of the plurality of signatures to the expected signature, determine whether the one of the plurality of signatures matches the expected signature, and send an acknowledgment that the one of the plurality of safety sounds has been played to a vehicle system controller in response to the one of the plurality of signatures matches the expected signature.

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): 0.3919502756583931
- 35 USC 102 Novelty (BERT): 0.4834631816830204
- Combined Prediction Score: 0.4011015662608558
- Mean Citation Score: 151.31415800000005
- Max Citation Score: 158.82965
- Similarity Product: 97.3263225024104

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

Dataset: test