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 9):
A microprocessor control unit, wherein the microprocessor control unit is applied to a communication transmission system, and the communication transmission system further comprises 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, wherein the signal splitter is disposed in the signal output line, the microprocessor control unit is connected to the first digital-to-analog converter and the second digital-to-analog converter, the first digital-to-analog converter and the second digital-to-analog converter are separately connected to the mixer, the local oscillator is connected to the mixer, the mixer is connected to the signal output line, one end of the detector tube is connected to the signal splitter, and the other end of the detector tube is connected to the microprocessor control unit, the microprocessor control unit comprising:\n a reading unit, configured to read, from the detector tube, a detection value of a local oscillator feedthrough signal that is detected by the detector tube; a comparison unit, configured to compare the detection value read by the reading unit with a preset local oscillator feedthrough target value; and a control and adjustment unit, configured to:\n when the comparison unit determines that the detection value is greater than the target value, control and adjust quadrature direct current components VI and VQ that are output by the first digital-to-analog converter and the second digital-to-analog converter to the mixer and that are used for local oscillator feedthrough signal correction.

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): 0.4903898588032133
- 35 USC 102 Novelty (BERT): 0.4944856718016459
- Combined Prediction Score: 0.4907994401030566
- Mean Citation Score: 227.191818
- Max Citation Score: 239.22583
- Similarity Product: 173.65271682565628

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