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 8):
The tag reader according to  claim 6 , wherein:\n the at least one wireless tag includes a plurality of wireless tags affixed to an object moving along the passage so as to cross the passage; the tag reader further comprises\n a number of phase periods calculation portion that obtains the number of phase periods having the unknown value by substituting the four distance formulae determined by the distance formula determination section in the first triangle relational expression and the second triangle relational expression, and \n a distance calculation portion that calculates a current distance as at least one of the distance between the wireless tag at the second time point and the first reception antenna and the distance between the wireless tag at the second time point and the second reception antenna in accordance with the number of phase periods calculated by the number of phase periods calculation portion; and \n the passage determination section determines that the plurality of wireless tags are moving along the passage in accordance with a case that, when the current distance is calculated for each of the wireless tags, the current distance calculated for each of the wireless tags and a beforehand stored minimum distance to the passage have a difference equal to or less than a predetermined distance and current distances calculated for the plurality of wireless tags have differences equal to or less than a reference distance difference.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.61224
- Patent Class: 235.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12602411', '11885973', '12628620', '14131450', '11030877']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6078339291710751
- 35 USC 102 Novelty (BERT): 0.4813247442060494
- Combined Prediction Score: 0.5951830106745726
- Mean Citation Score: 203.975492
- Max Citation Score: 236.59209
- Similarity Product: 177.3424485782111

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

Dataset: test