PATENT CLAIM ANALYSIS

Application Number: 16015053
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
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 1):
A transmission apparatus comprising:\n (a) orthogonal frequency division multiplexing (OFDM) modulation signal generating circuitry which, in operation, generates a first OFDM modulation signal by: (i) inserting symbols for demodulation in a first plurality of subcarriers 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 a reception apparatus; (ii) inserting symbols, having both an in-phase (I) component and a quadrature-phase (Q) component in an I-Q plane of zero, 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 a second OFDM modulation signal by: (iv) inserting the symbols for demodulation in the second plurality of subcarriers at the first time and in the first plurality of sub-carriers at the second time; (v) inserting the symbols, having both the I component and the Q component in the I-Q plane of zero, 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; and (b) transmitting circuitry, which, in operation, transmits the first and the second OFDM modulation signals, from respective different antennas, in an identical frequency band.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 94.0
- Lexical Diversity: 2.51562
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14845132', '14195508', '13865876', '14616482', '15145703']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7185040548284657
- 35 USC 102 Novelty (BERT): 0.6994662743110188
- Combined Prediction Score: 0.716600276776721
- Mean Citation Score: 767.12994
- Max Citation Score: 770.1962
- Similarity Product: 722.7592070104361

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