PATENT CLAIM ANALYSIS

Application Number: 15863983
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["375", "371000"]

Abstract:
A clock and data recovery circuit with jitter tolerance enhancement is provided. The CDR circuit includes: a bang-bang phase detector, a digital filter, a digitally controlled oscillator, and an adaptive loop gain control circuit. The CDR circuit detects a loop bandwidth variation and adjusts the loop bandwidth of CDR circuit by adjusting proportional path and integral path gain factors of the digital filter of the CDR circuit. The loop gain controller uses two methods to adjust the loop gain in CDR circuit: bang-bang adjusting method and linear adjusting method.

Claim (Index 1):
A clock and data recovery (CDR) circuit, comprising:\n a phase detector, detecting a phase difference between an input data signal and a sampling clock signal, and generating a phase difference information signal which indicates a sign of the phase difference; a loop gain controller, coupled to the phase detector, detecting a first plurality of consecutive logic values in the phase difference information signal, and adjusting gain factors according to the first plurality of consecutive logic values; a filter, coupled to the loop gain controller and the phase detector, filtering the phase difference information signal to generate a filtered signal according to the gain factors; and an oscillator, coupled to the filter and the phase detector, receiving the filtered signal and generating the sampling clock signal according to the filtered signal.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 86.0
- Lexical Diversity: 1.84906
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13833321', '13235628', '15602239', '14145493', '13081941']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4978325088153497
- 35 USC 102 Novelty (BERT): 0.4929650819860182
- Combined Prediction Score: 0.4973457661324166
- Mean Citation Score: 242.94647
- Max Citation Score: 264.6696
- Similarity Product: 219.9554796380997

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