KR970056080A - Optical network construction device - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to an optical network building apparatus for building a network using an optical method rather than a radio frequency.

2. The technical problem to be solved by the invention

The present invention provides an optical network construction apparatus using optics without using wired or wireless wireless.

3. Summary of Solution to Invention

The present invention provides a modulation unit for outputting a modulated signal in response to a data input, an optical signal output unit for connecting the modulation unit to output the modulated signal as an optical signal, and connecting and transmitting the optical signals. An optical network construction device comprising an optical signal focusing transceiver for receiving a signal, comprising: a receiver connected to the optical signal focusing transmitter for receiving the modulated optical signal, and converting the optical signal received in connection with the receiver to an electrical signal An optical detector connected to the optical detector, a preamplifier for amplifying the electrical signal below a predetermined level from the optical detector with a minimum of noise, and a preamplifier connected to the preamplifier for the characteristics of the noise. A main amplifier for amplifying a signal that cannot be amplified to a predetermined size required by the filter, and the main amplification A filter unit for filtering to limit the bandwidth required for passing the electrical signal to a minimum, and an output clock of the filter unit for recovering to the same signal as the received signal connected to the filter unit. A clock extracting unit for outputting a signal, a discriminating circuit unit connected to the filter unit and the clock output unit for latching and outputting the extracted clock signal with the same error probability through comparison, and connected to the discriminating circuit unit And a message output unit for outputting electrical signal information from the discrimination circuit unit to the outside.

4. Important uses of the invention

This invention is used suitably for the network construction apparatus using optics.

Description

Optical network construction device

Since this is an open matter, no full text was included.

1 is a block diagram of a transmitter according to the present invention.

Claims (9)

A modulation unit for outputting a modulated signal in response to data input, an optical signal output unit connected to the modulation unit for outputting the modulated signal as an optical signal, and an optical signal for focusing and transmitting the optical signals An optical network construction device comprising a focusing transceiver, comprising: a receiver connected to the optical signal focusing transmitter to receive the modulated optical signal, and an optical detector connected to the receiver to convert the received optical signal into an electrical signal And a preamplifier connected to the optical detector to amplify the electrical signal below a predetermined level from the optical detector with minimal noise, and a preamplifier connected to the preamplifier to amplify due to the characteristics of the noise. A main amplifier for amplifying a signal which has not been received to a predetermined size required by the filter, and a connection with the main amplifier For example, a filter unit for filtering to limit the bandwidth required for passing the electrical signal to a minimum, and an output clock of the filter unit connected to the filter unit to extract the output clock of the filter unit to recover the same signal as the received signal, and outputs it to the system. A discrimination circuit section connected to the clock extracting section, the filter section and the clock output section for latching and outputting the extracted clock signal with the same error probability through comparison, and connected to the discriminating circuit section from the discrimination circuit section. Optical network construction device comprising a message output unit for outputting the electrical signal information of the outside. The optical network building device according to claim 1, wherein the receiving unit passes the lens of the input optical signal and inputs it to the optical detector. The apparatus of claim 1, wherein the optical detector converts the optical signal into the electrical signal using a pin diode or an avalanche photodiode. The apparatus of claim 1, wherein the preamplifier is a low noise broadband amplifier. The optical network building device according to claim 1, wherein the main amplifier is a limiting or automatic gain control amplifier which is a broadband amplifier. The apparatus of claim 1, wherein the filter unit comprises a dielectric resonator and a phase locked loop, which are narrowband filters. The apparatus of claim 1, wherein the discrimination circuit unit comprises a comparison circuit and a Dee flip-flop. An optical network construction device for constructing a network communication network in which a space is used as an intermediate transmission medium and converts into an electrical signal in response to an optical signal input to communicate with each terminal, wherein the optical signal is received to receive the optical signal. And a plurality of terminal transceivers connected to each of the main transceiver for transmitting to the main transceiver and connected to each other and connected to each other to convert information as an electrical signal internally in response to the optical signal to communicate with each other. Optical network building device. 10. The apparatus of claim 8, wherein the main transceiver comprises one of the plurality of terminal transceivers. ※ Note: The disclosure is based on the initial application.