PATENT CLAIM ANALYSIS

Application Number: 16151094
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-01
Patent Classification: ["398", "209000"]

Abstract:
A method and structure for signal propagation in a coherent optical receiver device. Asynchronous equalization helps to reduce complexity and power dissipation, and also improves the robustness of timing recovery. However, conventional devices using inverse interpolation filters ignore adaptation algorithms. The present invention provides for forward propagation and backward propagation. In the forward case, the filter input signal is forward propagated through a filter to the adaptation engine, while, in the backward case, the error signal is backward propagated through a filter to the asynchronous domain. Using such forward and backward propagation schemes reduces implementation complexity while providing optical device performance.

Claim (Index 9):
The method of  claim 6  wherein the first filter module is an asynchronous time varying filter and the second filter module is an asynchronous time varying single-input multiple-output (SIMO) filter; and wherein computing the forward formulation stochastic gradient is according to the following equation: \u2207 e k 2 = 2 \ue89e \ue89e e k \ue89e \u2211 j = 0 p - 1 \ue89e \ue89e g k , j \ue89e y \u230a b a \ue89e k \u230b - i - j where k is the discrete time index of the input signal, where n is the discrete time index of the channel output, where k = \u230a a b \ue89e n \u230b , where a and b are integers such that a\u2264b, where e k  is the error signal, where g k,j  refers to the filter coefficients of the second filter module, and where y k  is the channel output.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 1.73846
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15792597', '15792396', '16134722', '15525670', '10016665']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6568815028672133
- 35 USC 102 Novelty (BERT): 0.5894485087226253
- Combined Prediction Score: 0.6501382034527545
- Mean Citation Score: 269.578318
- Max Citation Score: 450.3852
- Similarity Product: 384.930284028554

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