PATENT CLAIM ANALYSIS

Application Number: 15761504
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["398", "186000"]

Abstract:
In order to provide an optical modulator capable of controlling a bias voltage to correspond to transmission characteristics of a modulation means even when a multi-level modulation scheme is applied, an optical modulator  10  is provided with: an amplitude information control means  20  that generates amplitude information for controlling the amplitude of an information signal to correspond to transmission characteristics of a modulation means  50,  adds a dither signal to the amplitude information, and outputs the amplitude information; a bias value control means  30  that generates and outputs a bias value for controlling the center of the amplitude of the information signal to correspond to the transmission characteristics of the modulation means  50;  a data output means  40  that corrects the amplitude of information data on the basis of the amplitude information, and outputs the information data as the information signal; the modulation means  50  that corrects the center of the amplitude of the information signal on the basis of the bias value, modulates continuous wave light by using the information signal, and outputs a modulation signal; and an adjustment means  60  that extracts, from the modulation signal, the dither signal added to the amplitude information, and adjusts the amplitude information and the bias value such that the differential value of the intensity of the dither signal added to the amplitude information becomes zero.

Claim (Index 7):
The optical modulator according to  claim 6 , wherein\n the modulator includes\n a branch configured to divide continuous wave light inputted into two continuous beams of light, \n a first modulator configured to correct a center of an amplitude of the first information signal outputted, based on a first bias value, modulating one of the continuous beams of light divided by using the first information signal, and output a first modulation signal, \n a second modulator configured to correct a center of an amplitude of the output second information signal, based on a second bias value, modulating another of the continuous beams of light divided by using the second information signal, and output a second modulation signal, \n a phase adjustment circuit configured to shift a phase of the second modulation signal outputted by \u03c0/2, and \n a multiplexer configured to multiplex the first modulation signal and the second modulation signal having the phase shifted by \u03c0/2 and output the modulation signal, and \n the bias value controller generates a first bias value and a second bias value in such a way that a center of amplitudes of the first information signal and the second information signal is set to a minimum point of a transmission characteristic of the modulator, and outputs the first bias value and the second bias value.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 90.0
- Lexical Diversity: 3.31944
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16070151', '15559165', '13754183', '15810671', '15409731']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7356950779998117
- 35 USC 102 Novelty (BERT): 0.5413027070353357
- Combined Prediction Score: 0.7162558409033641
- Mean Citation Score: 314.965168
- Max Citation Score: 344.8733200000001
- Similarity Product: 285.0568128345061

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

Dataset: test