PATENT CLAIM ANALYSIS

Application Number: 16287696
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["375", "267000"]

Abstract:
A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band. A reception apparatus is provided, which includes a plurality of antennas that receive a plurality of OFDM modulation signals; a plurality of OFDM demodulators that transform the plurality of OFDM modulation signals to a plurality of reception signals using Fourier transform; an estimator that outputs a distortion estimation signal using one or more symbols for demodulation included in the plurality of reception signals; and a demodulator that compensates for distortion of the reception signals using the distortion estimation signal and demodulates a data symbol included in the reception signals.

Claim (Index 9):
A reception apparatus comprising:\n receiving circuitry, which, in operation, receives a first and a second orthogonal frequency division multiplexing (OFDM) modulation signals transmitted, from respective different antennas, in an identical frequency band; and OFDM demodulating circuitry, which, in operation, transforms the first and the second OFDM modulation signals to two reception signals using Fourier transform, wherein the first OFDM modulation signal includes: (i) symbols for demodulation inserted in a first plurality of sub-carriers at a first time and in a second plurality of sub-carriers at a second time adjacent to the first time, the symbols for demodulation being reception processing reference symbols of the reception apparatus and having both an in-phase (I) component and a quadrature-phase (Q) component in an I-Q plane of non-zero; and (ii) symbols, having both the in-phase (I) component and the quadrature-phase (Q) component in the I-Q plane of zero, inserted in the second plurality of sub-carriers at the first time and in the first plurality of sub-carriers at the second time; and (iii) inserting first data symbols in the first plurality of sub-carriers at a third time adjacent to the second time and in the second plurality of sub-carriers at the third time; and the second OFDM modulation signal includes: (iv) symbols for demodulation inserted in the second plurality of sub-carriers at the first time and in the first plurality of sub-carriers at the second time; (v) symbols, having both the I component and the Q component in the I-Q plane of zero, inserted in the first plurality of sub-carriers at the first time and in the second plurality of sub-carriers at the second time; and (vi) inserting second data symbols in the first plurality of sub-carriers at the third time and in the second plurality of sub-carriers at the third time.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 99.0
- Lexical Diversity: 2.51562
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13865876', '14195508', '14845132', '16015053', '14616482']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6662082738467139
- 35 USC 102 Novelty (BERT): 0.705193672485387
- Combined Prediction Score: 0.6701068137105812
- Mean Citation Score: 762.31217
- Max Citation Score: 763.7648
- Similarity Product: 734.9878039084434

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