PATENT CLAIM ANALYSIS

Application Number: 15955049
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["455", "456100"]

Abstract:
Embodiments of the present disclosure describe mechanisms for radio frequency (RF) ranging between pairs of radio units based on radio signals exchanged between units. An exemplary radio system may include a first radio unit, configured to transmit a first radio signal, and a second radio unit configured to receive the first radio signal, adjust a reference clock signal of the second radio unit based on the first radio signal, and transmit a second radio signal generated based on the adjusted reference clock signal. Such a radio system may further include a processing unit for determining a distance between the first and second radio units based on a phase difference between the first radio signal as transmitted by the first radio unit and the second radio signal as received at the first radio unit. Disclosed mechanisms may enable accurate RF ranging using low-cost, low-power radio units.

Claim (Index 14):
A radio unit, comprising:\n means for receiving a first radio signal transmitted by a further radio unit; means for generating a reference clock signal based on which the radio unit is configured to transmit radio signals; means for adjusting the reference clock signal based on the first radio signal; and means for transmitting a second radio signal generated based on the adjusted reference clock signal, wherein:\n the second radio signal is configured to enable determination of a distance between the radio unit and the further radio unit based on a phase difference between the first radio signal transmitted by the further radio unit and the second radio signal transmitted by the radio unit as received at the further radio unit, \n said first radio signal is one of a plurality of first radio signals, each of the first radio signals having a different frequency, \n the means for adjusting the reference clock signal based on the first radio signal is configured to adjust the reference clock signal based on the first radio signal for each of the plurality of first radio signals, and \n the means for transmitting the second radio signal is configured to transmit the second radio signal generated based on the adjusted reference clock signal for each of the plurality of first radio signals, and \n the plurality of first radio signals include radio signals at frequency steps of between 10 kilohertz and 10 megahertz.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 91.0
- Lexical Diversity: 2.55738
- Patent Class: 455.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15270444', '11750209', '12241681', '14058160', '14786413']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6724191587869808
- 35 USC 102 Novelty (BERT): 0.4635816908646191
- Combined Prediction Score: 0.6515354119947446
- Mean Citation Score: 135.674774
- Max Citation Score: 137.9964
- Similarity Product: 101.78015238490104

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