PATENT CLAIM ANALYSIS

Application Number: 15976655
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["375", "295000"]

Abstract:
The present disclosure discloses a local oscillator feedthrough signal correction apparatus, including a microprocessor control unit, a first digital-to-analog converter, a second digital-to-analog converter, a mixer, a local oscillator, a signal output line, a signal splitter, and a detector tube. The signal splitter is disposed in the signal output line, and the first digital-to-analog converter and the second digital-to-analog converter are configured to provide the mixer with quadrature direct current components VI and VQ used for local oscillator feedthrough signal correction. The mixer outputs a local oscillator feedthrough signal to the signal output line. The signal splitter obtains the local oscillator feedthrough signal by means of splitting, and the detector tube detects the local oscillator feedthrough signal. When a detection value of the local oscillator feedthrough signal exceeds a preset target value, the microprocessor control unit adjusts output values of the VI and the VQ to reduce local oscillator feedthrough.

Claim (Index 1):
A local oscillator feedthrough signal correction apparatus, comprising:\n a microprocessor control unit connected to a first digital-to-analog converter and a second digital-to-analog converter, wherein the first digital-to-analog converter and the second digital-to-analog converter are separately connected to a mixer and are configured to provide the mixer with quadrature direct current components VI and VQ used for local oscillator feedthrough signal correction; a local oscillator connected to the mixer and configured to provide the mixer with a local oscillator signal, and wherein the mixer is connected to a signal output line and configured to output a local oscillator feedthrough signal to the signal output line; a detector tube having one end connected to a signal splitter and another end connected to the microprocessor control unit, wherein the signal splitter is disposed in the signal output line and configured to obtain the local oscillator feedthrough signal by means of splitting, and the detector tube is configured to detect the local oscillator feedthrough signal; and wherein the microprocessor control unit is configured to:\n when a detection value of the local oscillator feedthrough signal that is detected by the detector tube exceeds a preset local oscillator feedthrough target value, control the first digital-to-analog converter and the second digital-to-analog converter to adjust output values of the VI and the VQ.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 93.0
- Lexical Diversity: 2.72131
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10115531', '11229888', '12237827', '15233688', '11303235']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4930748397399994
- 35 USC 102 Novelty (BERT): 0.48277619139693
- Combined Prediction Score: 0.4920449749056925
- Mean Citation Score: 227.191818
- Max Citation Score: 239.22583
- Similarity Product: 200.84213551067955

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