PATENT CLAIM ANALYSIS

Application Number: 16118719
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["381", "073100"]

Abstract:
Techniques are provided for defending against an ultrasonic attack on a speech enabled device. A methodology implementing the techniques according to an embodiment includes detecting voice activity in an audio signal received by the device and generating an ultrasonic jamming signal in response to the detection. The jamming signal is broadcast over a loudspeaker for up to the duration of the detected voice activity to defend against the ultrasonic attack. According to another embodiment, the ultrasonic jamming signal is generated in response to detection of a wake-on-voice key phrase in the received audio signal, and the jamming signal is broadcast over the loudspeaker for a time duration selected to be less than or equal to a time window during which spoken commands are accepted by the device following the wake-on-voice key phrase detection. The jamming signal may include white or colored noise, combinations of tones, and/or a periodic sweep frequency.

Claim (Index 24):
The system of  claim 19 , wherein the ultrasonic jamming signal comprises a colored noise signal, the coloring selected to match a frequency response associated with speech signals.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 96.0
- Lexical Diversity: 2.01266
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16050593', '16023455', '15702490', '14453455', '14713300']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6839699277066563
- 35 USC 102 Novelty (BERT): 0.4856654809934394
- Combined Prediction Score: 0.6641394830353347
- Mean Citation Score: 131.24668119999998
- Max Citation Score: 142.44568
- Similarity Product: 91.1325959718418

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