PATENT CLAIM ANALYSIS

Application Number: 15867650
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["340", "004200"]

Abstract:
Circuits and methods for active load modulation is described. These circuits and methods may be employed in connection with near field communication (NFC) systems, for example in the proximity inductive coupling card (PICC). The methods described herein may be used to synchronize the operations of the system to the carrier clock provided by a reader with typical operation frequency of 13.56 MHz±7 KHz. The synchronization may be performed by locking an internal clock to the carrier clock when the transmission of data is disabled, by locking the internal clock to a local clock when data transmission is enabled, and by compensating the phase or frequency of the active load modulation clock to track the carrier clock. In this way, synchronization can be accomplished even if the power of the carrier clock signal is much lower than the active load modulation signal.

Claim (Index 6):
The method of  claim 1 , further comprising:\n limiting a phase drift of the ALM clock relative to the carrier clock, wherein limiting a phase drift of the ALM clock relative to the carrier clock comprises calibrating a frequency of the output of the controllable oscillator based on the carrier clock.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 1.925
- Patent Class: 340.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15726011', '15694590', '15225778', '15757771', '14279365']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.681732549237658
- 35 USC 102 Novelty (BERT): 0.4880102887419766
- Combined Prediction Score: 0.6623603231880899
- Mean Citation Score: 188.182072
- Max Citation Score: 199.93987
- Similarity Product: 148.97613096108083

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