PATENT CLAIM ANALYSIS

Application Number: 15766115
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["398", "175000"]

Abstract:
Provided are a relay apparatus and a relay method for a passive optical network so as to largely extend a communicable distance while maintaining compatibility with existing network components. In the case of applying an optical relay to the passive optical network, a delay time is reduced by applying the optical relay so that entire transmission delay time considering the increased delay time may be within a preamble period of the upstream burst stream, thereby rapidly increasing a transmission distance of the passive optical network by using the optical relay.

Claim (Index 1):
A relay apparatus for a passive optical network which relays optical signals of an optical line terminal (OLT) and an optical network terminal (ONT) using a pair of optical transceivers, the relay apparatus comprising:\n a signal detector that detects presence or absence of an upstream burst signal earlier than an electrical signal generation preparation time of the optical transceiver connected with the ONT; a burst mode clock data recovery (BCDR) unit that recovers a clock and data from an upstream burst signal received to the optical transceiver and converted into an electrical signal by an optical-electrical conversion function; a clock data recovery (CDR) unit that recovers an OLT clock and data from a downstream continuous signal received by the optical transceiver connected to the OLT and converted into an electrical signal through an optical-electrical conversion function; an asynchronous buffer unit that stores an upstream burst signal using the clock recovered by the BCDR unit as an input clock and outputs the stored signal using the clock recovered by the CDR unit as an output clock; and a control unit that proactively generates an upstream burst frame preamble in accordance with the OLT clock recovered by the CDR unit when the upstream burst signal is detected by the signal detector, selects upstream burst frame data subsequent to the upstream burst frame preamble proactively generated when the recovered upstream burst frame data is stored in the asynchronous buffer unit from the asynchronous buffer unit to provide the selected upstream burst frame data to the optical transceiver connected with the OLT according to the OLT clock.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 96.0
- Lexical Diversity: 1.74074
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13523610', '11877379', '15606094', '12684412', '15251084']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6575416438884276
- 35 USC 102 Novelty (BERT): 0.5250644928294763
- Combined Prediction Score: 0.6442939287825326
- Mean Citation Score: 277.701302
- Max Citation Score: 288.9695700000001
- Similarity Product: 242.88550229896552

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