PATENT CLAIM ANALYSIS

Application Number: 16363020
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["398", "119000"]

Abstract:
Aspects of the disclosure provide techniques for automatic repeat request (ARQ) in a free-space optical communication (FSOC) architecture. These techniques, including block-selective ARQ, adaptive retransmission delay, and random seed scrambling, can be used individually or in combination to combat problems involving frame loss or corruption. These techniques enable the system to rapidly recover by streamlining the retransmission process. For instance, block-selective ARQ acknowledges variable length blocks of frames in the return stream from the receiver to the transmitter. Adaptive retransmission delay allows the retransmission delay to grow in the absence of feedback by the receiver, up to some defined limit. And with random seed sampling, a scrambling sequence is incorporated to aid with frame syncing, which avoids the need for a line code. These aspects of the technology provide a robust communication process, and also reduce overhead costs associated with unnecessary retransmissions.

Claim (Index 18):
An automatic repeat request (ARQ) communication device, comprising:\n an optics system configured to communicate with another communication device using free space optical communication (FSOC); a transmitter device operatively coupled to the optics system, the transmitter device being configured to assemble frames to be sent via FSOC by the optics system to the other communication device; a receiver device operatively coupled to the optics system, the receiver device being configured to disassemble frames received by the optics system from the other communication device; memory including a resequencing buffer (RS); one or more processors operatively coupled to the memory, the transmitter device, the receiver device and the optics system, the one or more processors being configured:\n select a data frame for transmission to a receiver device; \n prepending a current state of the resequencing buffer to the data frame to form an information block; \n scramble the information block with a scrambling sequence to generate scrambled data; \n apply an error correction code to the scrambled data to obtain a frame; and \n cause the transmitter device to transmit the obtained frame to the other communication device.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 99.0
- Lexical Diversity: 1.6875
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15393377', '11419580', '09631242', '09801031', '11009333']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6562374552040148
- 35 USC 102 Novelty (BERT): 0.6014839430864957
- Combined Prediction Score: 0.6507621039922629
- Mean Citation Score: 247.59325600000005
- Max Citation Score: 483.33328
- Similarity Product: 461.7251293987752

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

Dataset: test