PATENT CLAIM ANALYSIS

Application Number: 16078390
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["342", "173000"]

Abstract:
A frequency modulation circuit [[ 110 - 1 ]] includes a VCO [[ 5 ]], a DIV [[ 19 ]], a MIX [[ 20 ]], a single-phase differential converter [[ 18 ]], and a signal processing circuit [[ 6 ]]. The signal processing circuit [[ 6 ]] performs differential arithmetic processing of an intermediate frequency signal with a program of a microcomputer according to a quadrature demodulation scheme and, thereafter, measures a frequency from phase information, performs n-th order polynomial (n is an integer equal to or larger than 2) approximation on time-frequency data of an IF signal output by a chirp modulation control voltage after inverse function correction, and performs modulation correction for correcting a time error.

Claim (Index 8):
The frequency modulation circuit according to  claim 1 , wherein\n the signal processing circuit is configured from a microcomputer to store a differential arithmetic processing program using a quadrature demodulation scheme and a memory to store the modulation control time-dependent voltage data, and the signal processing circuit measures time frequency data of the intermediate frequency signal from phase information obtained from execution of the program by the microcomputer using the differential signals output from the analog-digital converter, approximates, with an n-th order polynomial (n is an integer equal to or larger than 2), the time-frequency data of the intermediate frequency signal down-converted by the frequency converter based on the modulation control time-dependent voltage data stored in the memory in advance, corrects, based on a time error calculated from the time frequency data approximated by the n-th order polynomial, the modulation control time-dependent voltage data by correcting the time error from a difference with respect to the modulation control time-dependent voltage data stored in the memory, updates the modulation control time-dependent voltage data of the memory, and corrects the time error of the oscillation frequency signal output from the voltage control oscillator.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 96.0
- Lexical Diversity: 1.87013
- Patent Class: 342.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12096951', '15549477', '11898156', '10506991', '12709721']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5543613980982303
- 35 USC 102 Novelty (BERT): 0.5158543609893147
- Combined Prediction Score: 0.5505106943873387
- Mean Citation Score: 270.14092400000004
- Max Citation Score: 302.6254
- Similarity Product: 223.88859505826235

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