PATENT CLAIM ANALYSIS

Application Number: 16408979
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-11
Patent Classification: ["455", "114300"]

Abstract:
A pre-distorter that both accurately compensates for the non-linearities of a radio frequency transmit chain, and that imposes as few computation requirements in terms of arithmetic operations, uses a diverse set of real-valued signals that are derived from the input signal. The derived real signals are passed through configurable non-linear transformations, which may be adapted during operation, and which may be efficiently implemented using lookup tables. The outputs of the non-linear transformations serve as gain terms for a set of complex signals, which are functions of the input, and which are summed to compute the pre-distorted signal. A small set of the complex signals and derived real signals may be selected for a particular system to match the classes of non-linearities exhibited by the system, thereby providing further computational savings, and reducing complexity of adapting the pre-distortion through adapting of the non-linear transformations.

Claim (Index 8):
The method of  claim 4  wherein processing the transformed signals (w) to produce a plurality of phase-invariant derived signals includes computing a derived signal r k [t] using at least one of the following transformations:\n r k [t]=|w a [t]| \u03b1 , where \u03b1>0 for a transformed signal w a [t]; \n r k [t]=0.5(1\u2212\u03b8+r a [t\u2212\u03b1]+\u03b8r b [t]), where \u03b8\u2208{1, \u22121}, a, b\u2208{1, . . . , k\u22121}, and \u03b1 is an integer and r a [t] and r b [t] are other of the derived signals; \n r k [t]=r a [t\u2212\u03b1]r b [t], where a, b\u2208{1, . . . , k\u22121} and \u03b1 is an integer and r a [t] and r b [t] are other of the derived signals; and \n r k [t]=r k [t\u22121]+2 \u2212d  (r a [t]\u2212r k [t\u22121]), where a\u2208{1, . . . , k\u22121} and d is an integer d>0.

Metadata:
- Claim Count in Document: 71.0
- Percentile: 100.0
- Lexical Diversity: 1.91358
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15992614', '14953762', '15426760', '11070612', '15952864']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6633140667135651
- 35 USC 102 Novelty (BERT): 0.4899734274632711
- Combined Prediction Score: 0.6459800027885356
- Mean Citation Score: 179.87580399999996
- Max Citation Score: 192.56447
- Similarity Product: 140.67520571603657

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

Dataset: test