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 1):
A coherent optical receiver device, the device comprising:\n an input signal; a channel module receiving the input signal; an equalizer filter module coupled to the channel module, the equalizer filter module being configured to equalize a gain response of the input signal over a wavelength range; a first filter module coupled to the equalizer filter module, the first filter module being configured to filter the input signal according to a first filter function; a second filter module coupled to channel module, the second filter module being configured to filter the input signal according to a second filter function; a combining module coupled to the first filter module; wherein the combining module is configured to obtain an error signal by combining the input signal and the first filter module output; an adaptation engine module coupled to the second filter module, and coupled in a loop to the equalizer filter module, and the combining module; wherein the adaptation engine module is configured to compute a forward formulation stochastic gradient from the second filter module output and the error signal.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 1.73846
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15792597', '15792396', '16134722', '15525670', '10016665']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6261127429902014
- 35 USC 102 Novelty (BERT): 0.5946716784130375
- Combined Prediction Score: 0.622968636532485
- Mean Citation Score: 269.578318
- Max Citation Score: 450.3852
- Similarity Product: 441.8462460059882

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