PATENT CLAIM ANALYSIS

Application Number: 15964916
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["388", "804000"]

Abstract:
Conduction band control schemes are presented for reducing noise and/or lower harmonics in power tools. A controller in the tool is interfaced with a plurality of motor switches and, for each phase, operates to output a pulse-width modulated (PWM) signal to one or more of the motor switches to control power supplied to the electric motor. The controller is also configured to monitor a parameter indicative of the load on the motor. In response to detecting a load greater than a threshold, the controller controls power output of the motor by setting conduction band of the motor switches and the advance angle to baseline values predetermined values. In response to detecting a load less than the threshold, the controller reduces at least one of the conduction band and the advance angle to a value less than the baseline values.

Claim (Index 1):
A power tool, comprising:\n a brushless direct current (BLDC) motor having a stator defining a plurality of phases; a switching arrangement having a plurality of motor switches connected electrically between a power source and the BLDC motor and operates to deliver power to the BLDC motor; and a controller interfaced with the plurality of motor switches and, for each phase, operates to output a pulse-width modulated (PWM) signal to one or more of the plurality of motor switches to control power supplied to the BLDC motor, wherein the controller is configured to monitor a parameter indicative of load on the BLDC motor and, in response to the parameter being indicative of the load exceeding a threshold, controlling power output of the BLDC motor by setting conduction band of the plurality of motor switches and advance angle to baseline values, and in response to the parameter being indicative of the load being less than the threshold, reducing at least one of the conduction band and the advance angle to a value less than the corresponding baseline value.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 91.0
- Lexical Diversity: 2.02703
- Patent Class: 388.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15520261', '15817383', '15815913', '15815862', '15815826']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.596527038927577
- 35 USC 102 Novelty (BERT): 0.5299391574316471
- Combined Prediction Score: 0.589868250777984
- Mean Citation Score: 272.573028
- Max Citation Score: 385.78598
- Similarity Product: 354.149844409095

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