PATENT CLAIM ANALYSIS

Application Number: 15992245
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["331", "045000"]

Abstract:
A four-phase oscillator includes, a first oscillator configured to output a first differential signal, a second oscillator configured to output a second differential signal shifted in phase with respect to the first differential signal by 90 or −90 degrees, and a control circuit. The first oscillator includes a first tail current source and a second tail current source. The second oscillator includes a third tail current source and a fourth tail current source. The control circuit changes the frequency of the first and second differential signals by controlling at least one of a difference between a first current value supplied from the first tail current source and a third current value supplied from the third tail current source and a difference between a second current value supplied from the second tail current source and a fourth current value supplied from the fourth tail current source.

Claim (Index 1):
A four-phase oscillator comprising:\n a first oscillator configured to output a first differential signal, the first oscillator including\n a first resonator including an inductor and a capacitor coupled in parallel, \n a first cross-coupled circuit in which a first pair of transistors coupled to the first resonator are cross-coupled, \n a first tail current source coupled to the first pair of transistors, \n first input differential pair transistors configured to receive the second differential signal, and \n a second tail current source coupled to the first input differential pair transistors; \n a second oscillator configured to output a second differential signal shifted in phase with respect to the first differential signal by 90 or \u221290 degrees, the second oscillator including\n a second resonator including an inductor and a capacitor coupled in parallel, \n a second cross-coupled circuit in which a second pair of transistors coupled to the second resonator are cross-coupled, \n a third tail current source coupled to the second pair of transistors, \n second input differential pair transistors configured to receive the first differential signal, and \n a fourth tail current source coupled to the second input differential pair transistors; and \n a control circuit configured to change the frequency of the first and second differential signals by controlling at least one of a difference between a first current value supplied from the first tail current source and a third current value supplied from the third tail current source and a difference between a second current value supplied from the second tail current source and a fourth current value supplied from the fourth tail current source.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 93.0
- Lexical Diversity: 3.23404
- Patent Class: 331.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11917128', '12717122', '11957482', '11462180', '15231250']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7318422714038401
- 35 USC 102 Novelty (BERT): 0.4910794874927827
- Combined Prediction Score: 0.7077659930127344
- Mean Citation Score: 235.801416
- Max Citation Score: 244.09644
- Similarity Product: 205.84976866373776

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test