PATENT CLAIM ANALYSIS

Application Number: 16303988
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-08
Patent Classification: ["375", "265000"]

Abstract:
A simple construction for a family of non-uniform APSK constellations by the radial isomorphism between squares to circles is provided. The mutual information values indicate gains of at least 0.5 dB up to 1.5 dB with respect to the state of the art, such as the DVB-S2X constellations with 256 symbols. The invention also provides for a low-complexity detector of high-order modulated signals.

Claim (Index 14):
A data transmission device comprising a modulator, a transmitter and at least one memory element, the device being configured for:\n the modulator modulating a digital data stream onto a carrier wave to generate a modulated signal, the modulator converting digital data in the data stream into symbols for transmission by the transmitter, the symbols being encoded into one of M possible symbols of a M-ary signal constellation, the symbols of said first signal constellation being distributed on a plurality of C concentric circles the transmitter transmitting the modulated signal over a communication, wherein said first signal constellation is such that there exists a corresponding second M-ary quadrature amplitude modulation, QAM, signal constellation having an equal plurality of C concentric squares, each square being circumscribed by a corresponding circle of the first M-ary signal constellation, wherein the first symbols on a given circle of the first signal constellation bijectively map to the second symbols of a corresponding QAM square, the mapping being such that for each of said second symbols of a QAM square, a radius of said corresponding circle passes through said second symbol and its corresponding first symbol.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 98.0
- Lexical Diversity: 1.31373
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10000650', '15816940', '11440686', '10163167', '15904579']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4657717353299357
- 35 USC 102 Novelty (BERT): 0.4986466626775806
- Combined Prediction Score: 0.4690592280647002
- Mean Citation Score: 257.17281599999995
- Max Citation Score: 260.37292
- Similarity Product: 214.0305512070417

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

Dataset: test