PATENT CLAIM ANALYSIS

Application Number: 16031872
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["318", "661000"]

Abstract:
In a semiconductor device, a sine wave signal is input to a first input part and a cosine wave signal is input to a second input part. A multiplexer alternately selects one of the sine wave signal and the cosine wave signal. An analog to digital converter converts the output signal of the multiplexer into a digital value. A switching circuit is coupled between at least one of the first and second input parts and the multiplexer. The switching circuit is configured to be able to invert the input sine wave signal or the input cosine wave signal, in order to reduce the angle detection error due to the non-linearity error of the A/D converter.

Claim (Index 5):
A semiconductor device comprising;\n a first input part to which a first signal indicating the sine of an angle to be detected is input; a second input part to which a second signal indicating the cosine of the angle is input; a multiplexer for selecting one of the first and second signals; an analog to digital converter for converting the output signal of the muitiplexer into a digital value; and a switching circuit coupled between at least one of the first and second input parts and the multiplexer, wherein the switching circuit is configured to be able to invert the input first or second signal, wherein the semiconductor device further comprises\n an angle operation circuit for calculating the angle based on the first and second signals converted into digital values by the analog to digital converter, and \n a switch control circuit for controlling the switching of the switching circuit based on the angle calculated by the angle operation circuit, \n wherein the first signal is a signal obtained by modulating an excitation signal, which is input, to a resolver, by the sine of the angle, wherein the second signal is a signal obtained by modulating the excitation signal by the cosine of the angle, wherein the switch control circuit is configured to invert the rnput first or second signal in such a way that the first and second signals to be input to the analog to digital converter have the same phase, and wherein when it is detected that the first and second signals, which are input to the respective first and second input parts, change from the same phase to the reverse phase or from the reverse phase to the same phase, the switch control circuit switches the switching circuit at the timing when the calculated angle further changes by a predetermined angle, from the time when the same phase and the reverse phase are switched.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 95.0
- Lexical Diversity: 2.25926
- Patent Class: 318.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14991978', '13513451', '10792384', '10792650', '12684048']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6627449444394317
- 35 USC 102 Novelty (BERT): 0.6145484995750689
- Combined Prediction Score: 0.6579252999529954
- Mean Citation Score: 299.61203
- Max Citation Score: 544.7719
- Similarity Product: 534.8444959223032

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