PATENT CLAIM ANALYSIS

Application Number: 15870787
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["381", "412000"]

Abstract:
Magnetic field cancelling audio speakers and associated devices are disclosed. In one embodiment, a utility locator includes an audio speaker device with two loudspeaker drivers positioned and electrically connected to reduce emitted magnetic fields over a range of frequencies corresponding with locator sensing frequencies.

Claim (Index 1):
A buried utility locator system, comprising:\n a buried utility locator, including: a housing; a magnetic field antenna array disposed on or in the housing for receiving magnetic field signals emitted from a hidden or buried conductor based on current flow therein and providing corresponding electrical output signals; and a utility locator electronics circuit disposed on or in the housing and operatively coupled to the magnetic field antenna array output to receive the electrical output signals and generate information about the hidden or buried conductor; an audio signal generator and audio amplifier operatively coupled to the utility locator electronics circuit to generate and provide an audio output signal associated with operation of the utility locator; and an audio speaker device, comprising: a speaker enclosure; input wiring operatively coupled to the audio output signal; a first electrostatic loudspeaker driver having terminals operatively coupled to the input wiring to receive the audio output signal with a first polarity; and a second electrostatic loudspeaker driver, of the same type as the first loudspeaker driver, having terminals operatively coupled to the input wiring to receive the audio output signal with a second polarity; wherein the first loudspeaker driver and the second loudspeaker driver are positioned within the speaker enclosure so as to at least partially cancel alternating current (AC) magnetic field signals emitted therefrom over a predefined frequency or range of frequencies overlapping the frequency or range of frequencies emitted from the hidden or buried conductor.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 86.0
- Lexical Diversity: 1.175
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13162294', '14708042', '13495722', '12982584', '13954965']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6983265053269624
- 35 USC 102 Novelty (BERT): 0.5029441020597731
- Combined Prediction Score: 0.6787882650002435
- Mean Citation Score: 220.549674
- Max Citation Score: 232.36089
- Similarity Product: 147.24964741208197

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

Dataset: test