PATENT CLAIM ANALYSIS

Application Number: 16148016
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-01
Patent Classification: ["714", "796000"]

Abstract:
Sequence detectors and detection methods are provided for detecting symbol values corresponding to a sequence of input samples obtained from an ISI channel. The sequence detector comprises a branch metric unit (BMU) and a path metric unit (PMU). The BMU, which comprises an initial set of pipeline stages, is adapted to calculate, for each input sample, branch metrics for respective possible transitions between states of a trellis. To calculate these branch metrics, the BMU selects hypothesized input values, each dependent on a possible symbol value for the input sample and L>0 previous symbol values corresponding to possible transitions between states of the trellis. The BMU then calculates differences between the input sample and each hypothesized input value. The BMU compares these differences and selects, as the branch metric for each possible transition, an optimum difference in dependence on a predetermined state in a survivor path through the trellis.

Claim (Index 15):
A computer program product for detecting symbol values corresponding to a sequence of input samples received over a channel, wherein the computer program product comprises a non-transitory computer readable storage medium having program instructions embodied therein, the program instructions being executable by a processing device to cause the processing device to perform a method comprising:\n selecting hypothesized input values; comparing the sequence of input samples with the hypothesized input values; and calculating, for each input sample, a respective set of one or more branch metrics based at least in part on the comparison of the sequence of input samples with the hypothesized input values; and determining, based at least in part on each respective set of one or more branch metrics, a respective state decision for a respective survivor path representing a respective possible symbol sequence corresponding to the sequence of input samples; updating a respective set of one or more path metrics for each respective survivor path using, at least in part, the corresponding respective state decision and the corresponding respective set of one or more branch metrics; and determining a respective tentative symbol decision for each respective survivor path.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 97.0
- Lexical Diversity: 2.12658
- Patent Class: 714.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15251638', '15251673', '15616954', '15915238', '11234446']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3678906681323378
- 35 USC 102 Novelty (BERT): 0.5659586207988874
- Combined Prediction Score: 0.3876974633989928
- Mean Citation Score: 365.49879
- Max Citation Score: 470.58096
- Similarity Product: 406.7156406193829

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

Dataset: test