PATENT CLAIM ANALYSIS

Application Number: 15949193
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["331", "109000"]

Abstract:
The self-polarised quartz oscillator circuit comprises an amplifier with an output which is connected to a first electrode of the quartz and an input which is connected to a second electrode of the quartz, an output capacitor which is connected to the first electrode of the quartz and an input capacitor which is connected to the second electrode of the quartz. The amplifier is polarised by a current through a MOS polarisation transistor, which is generated in an amplitude regulation assembly which comprises also an amplitude regulation stage. The second electrode of the quartz is connected to the gate of the polarisation transistor and to the amplitude regulation stage in order to modulate the polarisation current and to regulate the oscillation amplitude of the quartz.

Claim (Index 1):
A quartz oscillator circuit of the self-polarised type, comprising, in an active branch of the oscillator circuit, an amplifier with an output which is connected to a first electrode of the quartz and an input which is connected to a second electrode of the quartz, an output capacitor being connected to the first electrode of the quartz and an input capacitor being connected to the second electrode of the quartz, the amplifier being polarised by a current which is generated in an amplitude regulation assembly,\n the amplitude regulation assembly comprising an amplitude regulation stage having a current source and a polarisation transistor of current which is controlled by a gate of the transistor via the amplitude regulation stage and connected to the amplifier, in order to polarise it, the second electrode of the quartz, which is connected to the amplifier input, being connected to the gate of the polarisation transistor and to the amplitude regulation stage so as to vary the polarisation current through the polarisation transistor and to regulate the oscillation amplitude of the quartz, wherein the amplitude regulation stage comprises a first current mirror of a MOS type which comprises a diode-connected transistor of a second type of conductivity, one source of which is connected to a first terminal of a supply voltage source, a gate of the diode-connected transistor is connected to the gate of the PMOS polarisation transistor of a second type of conductivity and to the second electrode of the quartz, wherein the gate of the diode-connected transistor is connected to one side of a filter resistor whilst another side of the filter resistor is connected to a gate of another transistor of a second type of conductivity of the first current mirror and to a first electrode of a filter capacitor, a second electrode of which is connected to the first terminal of the supply voltage source, wherein a source of the other transistor of a second type of conductivity is connected to the first terminal of the supply voltage source via a base resistor in order to determine a regulation current of a current source.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 91.0
- Lexical Diversity: 2.95455
- Patent Class: 331.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12809954', '11926588', '10721897', '11351987', '14058650']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7634904710627431
- 35 USC 102 Novelty (BERT): 0.5396134805004126
- Combined Prediction Score: 0.7411027720065101
- Mean Citation Score: 267.17647400000004
- Max Citation Score: 389.15024
- Similarity Product: 333.0148402452278

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

Dataset: test