PATENT CLAIM ANALYSIS

Application Number: 16037747
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["375", "232000"]

Abstract:
Receivers for coded orthogonal frequency-division multiplexed (COFDM) signals conveying the same coded data both in lower-frequency and upper-frequency sidebands thereof. Apparatus for performing a complex synchrodyne of COFDM signal to baseband is followed by apparatus for extracting the COFDM subcarriers of the lower-frequency and upper-frequency sidebands of the COFDM signal from the in-phase and quadrature-phase results of the complex synchrodyne. The COFDM subcarriers of the lower-frequency sideband as converted to baseband are supplied to apparatus for demodulating and demapping those subcarriers to recover a first set of coded data. The COFDM subcarriers of the upper-frequency sideband as converted to baseband are supplied to apparatus for demodulating and demapping those subcarriers to recover a second set of coded data. A diversity combiner combines the first and second sets of coded data for subsequent decoding.

Claim (Index 1):
Receiver apparatus for coded orthogonal frequency-division modulation (COFDM) radio-frequency signals the lower and upper halves of the frequency spectrum of each of which convey the same forward-error-correction (FEC) coded data, said receiver apparatus comprising:\n means for selectively receiving a radio-frequency COFDM signal; means for developing first and second sets of QAM symbols, said first set of QAM symbols descriptive of the discrete Fourier transform of COFDM carriers from the lower half spectrum of the selectively received COFDM radio-frequency signal, and said second set of QAM symbols descriptive of the discrete Fourier transform of COFDM carriers from the upper half spectrum of the selectively received COFDM radio-frequency signal; means for serially arranging said first set of QAM symbols in each COFDM symbol in a first prescribed spectral order; means for serially arranging said second set of QAM symbols in each COFDM symbol in a second prescribed spectral order, such that each successive QAM symbol in said second set of QAM symbols conveys FEC-coded data related to FEC-coded data conveyed by a successive QAM symbol in said first set of QAM symbols as serially arranged in said first prescribed spectral order; means for demapping said first set of QAM symbols as thus serially arranged in said first prescribed spectral order to recover a first succession of QAM symbol map labels in soft-bit format and for demapping said second set of QAM symbols as thus serially arranged in said second prescribed spectral order to recover a second succession of QAM symbol map labels in soft-bit format; and a diversity combiner for combining soft bits of corresponding QAM symbol map labels in said first and second successions thereof as received by said diversity combiner as first and second input signals thereto, thereby to reproduce soft bits of FEC-coded data as response from said diversity combiner.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 95.0
- Lexical Diversity: 2.29508
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15213569', '15641014', '14641428', '14867930', '14183264']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5563446795889672
- 35 USC 102 Novelty (BERT): 0.6000498492535487
- Combined Prediction Score: 0.5607151965554253
- Mean Citation Score: 490.66442000000006
- Max Citation Score: 517.8119
- Similarity Product: 479.0456119800807

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