PATENT CLAIM ANALYSIS

Application Number: 15911274
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["235", "451000"]

Abstract:
A tag reader includes: a phase calculation section that sequentially calculates a phase of a reception wave; a phase difference calculation section that calculates a phase difference as a difference of phases calculated at two time points; and a tag angle calculation section that calculates a tag angle between a straight line connecting an antenna and the wireless tag and a line on which the wireless tag is moving. The phase difference calculation section calculates two values of the phase difference. The tag angle calculation section calculates a first tag angle and a second tag angle. The tag reader comprises a tag distance calculation section that calculates an antenna-tag minimum distance as a minimum distance from the line to the antenna.

Claim (Index 1):
A tag reader communicating with a wireless tag, the tag reader comprising:\n a phase calculation section that sequentially calculates a phase of a reception wave as an electric wave transmitted from the wireless tag and received by the tag reader in response to an electric wave transmitted to the wireless tag; a phase difference calculation section that calculates a phase difference as a difference of phases calculated at two time points by the phase calculation section; and a tag angle calculation section that calculates a tag angle as an angle between a straight line connecting an antenna included in the tag reader and the wireless tag and a line on which the wireless tag is moving, in accordance with the phase difference and a tag travel distance as a travel distance of the wireless tag during the two time points, wherein: the phase difference calculation section calculates two values of the phase difference with at least one of the two time points for calculation of the phase difference being set to a different time point; the tag angle calculation section calculates a first tag angle and a second tag angle each as the tag angle in accordance with the two values of the phase difference; and the tag reader further comprises\n a tag distance calculation section that calculates an antenna-tag minimum distance as a minimum distance from the line on which the wireless tag is moving to the antenna in accordance with a distance between a position at the tag angle having the first tag angle and a position at the tag angle having the second tag angle, the first tag angle, and the second tag angle.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.61224
- Patent Class: 235.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12602411', '11885973', '12628620', '14131450', '11030877']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5815745289179445
- 35 USC 102 Novelty (BERT): 0.4683427516262244
- Combined Prediction Score: 0.5702513511887726
- Mean Citation Score: 203.975492
- Max Citation Score: 236.59209
- Similarity Product: 201.46255847585144

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

Dataset: test