PATENT CLAIM ANALYSIS

Application Number: 15965215
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["331", "167000"]

Abstract:
A first tuning circuit tunes an oscillation frequency by changing, based on a first control signal, capacitance values of variable capacitive elements connected in parallel to an inductor. A second tuning circuit switches capacitive elements in and out of parallel connection with the inductor by turning on and off a transistor based on a second control signal, to thereby tune the oscillation frequency. A switching circuit includes n-channel transistors whose drains are connected via resistor elements to the source or drain of the transistor and a power and whose sources are grounded, and changes a bias voltage of the second tuning circuit by turning on and off the n-channel transistors based on the second control signal.

Claim (Index 5):
A PLL circuit comprising:\n a voltage controlled oscillator configured to include an inductor, a first tuning circuit which includes a variable capacitive element connected in parallel to the inductor, and receives a first control signal and tunes an oscillation frequency by changing, based on the first control signal, a capacitance value of the variable capacitive element, a second tuning circuit which includes a capacitive element and a first transistor whose first source or first drain is connected to the capacitive element, receives a second control signal and switches the capacitive element in and out of parallel connection with the inductor by turning on and off the first transistor based on the second control signal, to tune the oscillation frequency, and a switching circuit which includes at least one n-channel second transistor whose second drain is connected via a resistor element to the first source or the first drain and a power and whose second source is grounded, and changes a bias voltage of the second tuning circuit by turning on and off the at least one n-channel second transistor based on the second control signal; a frequency divider circuit configured to divide a frequency of an output signal of the voltage controlled oscillator to generate a feedback signal and output the feedback signal; a phase comparator circuit configured to output a phase difference signal representing phase difference between the feedback signal and a reference signal; a filter circuit configured to generate the first control signal by smoothing the phase difference signal and output the first control signal; and a control unit configured to generate the second control signal based on the reference signal and the output signal of the voltage controlled oscillator and output the second control signal.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.12069
- Patent Class: 331.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13464541', '14224190', '11094144', '13039772', '15656517']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7565969151890745
- 35 USC 102 Novelty (BERT): 0.4657825071721196
- Combined Prediction Score: 0.7275154743873791
- Mean Citation Score: 191.166368
- Max Citation Score: 192.10272
- Similarity Product: 160.5412116638947

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