PATENT CLAIM ANALYSIS

Application Number: 15923169
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-07
Patent Classification: ["455", "073000"]

Abstract:
A distance measuring device according to an embodiment includes a first device including a first transceiver configured to transmit a first known signal and a second known signal and receive a third known signal corresponding to the first known signal and a fourth known signal corresponding to the second known signal, a second device including a second transceiver configured to transmit the third known signal and the fourth known signal and receive the first and second known signals and a calculating section configured to calculate a distance between the first device and the second device on a basis of phases of the first to fourth known signals, and the first transceiver and the second transceiver transmit/receive the first and third known signals one time each and transmit/receive the second and fourth known signals one time each, performing transmission/reception a total of four times.

Claim (Index 18):
A distance measuring device that calculates a distance between a first device and a second device, at least one of which is movable, on a basis of phases of first to fourth known signals transmitted at a plurality of carrier frequencies, wherein\n the first device includes:\n a first reference signal source; and \n a first transceiver configured to transmit the first known signal corresponding to a first carrier frequency and the second known signal corresponding to a second carrier frequency different from the first carrier frequency, and receive the third known signal corresponding to the first carrier frequency and the fourth known signal corresponding to the second carrier frequency, using an output of the first reference signal source, \n the second device includes:\n a second reference signal source configured to operate independently from the first reference signal source; and \n a second transceiver configured to transmit the third known signal corresponding to the first carrier frequency and the fourth known signal corresponding to the second carrier frequency and receive the first known signal and the second known signal, using an output of the second reference signal source, \n the first or second device includes a first phase detector configured to detect phases of the third and fourth known signals received by the first transceiver, the first or second device includes a second phase detector configured to detect phases of the first and second known signals received by the second transceiver, the first or second device includes a calculating section configured to calculate a distance between the first device and the second device, and the first transceiver and the second transceiver transmit/receive the first known signal and the third known signal corresponding to the first known signal one time each and transmit/receive the second known signal and the fourth known signal corresponding to the second known signal one time each, performing transmission/reception a total of four times, at least one of the first phase detector and the second phase detector detects a phase twice at a predetermined interval for at least one of the first to fourth known signals, and the calculating section calculates the distance between the first device and the second device by cancelling a frequency difference between the first known signal and the third known signal and a frequency difference between the second known signal and the fourth known signal, by a calculation including a difference calculation of the phases obtained by the detection performed twice.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 3.34091
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13722065', '14203947', '11142406', '12053611', '14357756']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6893374519076053
- 35 USC 102 Novelty (BERT): 0.466122336711309
- Combined Prediction Score: 0.6670159403879756
- Mean Citation Score: 137.847572
- Max Citation Score: 150.32799
- Similarity Product: 114.28400984182296

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