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Access method for data packet networks

A technology for transmitting network and data packets, applied in the field of establishing access data packet transmission network, can solve problems such as low cost performance and low data transmission speed, and achieve the effect of improving access speed, improving security, and reducing investment and operation and maintenance costs.

Inactive Publication Date: 2004-04-28
弗拉基米尔・伊斯凡迪亚洛维奇・阿扎洛夫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The serious disadvantage of this method is the low speed of data transmission and low cost performance

Method used

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  • Access method for data packet networks
  • Access method for data packet networks

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Experimental program
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Embodiment Construction

[0016] figure 1 Shown is a data transmission network 1, equipment 2 providing access to the data transmission network, a modulator 3, an electromagnetic radiation source 4, equipment 5 deflecting electromagnetic waves, a user terminal 6, and a user receiving device or antenna 7.

[0017] The data transmission network 1 is accessed via a device 2 . The device 2 screens out the data packet marked with the user address of the specific service area from the information flow, and then directly directs this data packet to the modulator 3 . In this embodiment, the laser 4 (or other sources with a small divergence angle) modulates the ray by changing the energy of the light with the cooperation of the modulator 3, even if the emission source directly modulates any detailed parameters of the electromagnetic wave, it is available. The address information about the data packet, which is used for a specific moment of electric wave modulation, is transmitted to a deflection device (needle...

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PUM

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Abstract

This invention relates to optical communications and is designed for use in data transmission networks. <??>The technical effect of this invention consists in lowering capital and operating costs per unit of information transmitted and at the same time raising the overall maximum access speed. Subsidiary technical effects include allowing various groups of users to be organized at different service levels within a single service sector by using different electromagnetic radiation beams (including a single wavelength), and also enhancing security against unauthorized access. <??>The method comprises extracting data packets addressed to the subscribers of a subscriber access point from the network and transmitting the information contained in these packets by a directional electromagnetic radiation beam. The beam is directed at the receiving devices of subscribers at their respective addresses. The claimed method is used to transmit information to subscribers by optical-range electromagnetic radiation while dynamically controlling the spatial characteristics of the electromagnetic radiation beam using the address information of the packets so that the radiation beam is directed to the receiving device of a respective subscriber during transmission of a particular data packet. This embodiment of the invention uses an electromagnetic radiation beam of narrow angular divergence and the direction of its propagation is varied dynamically. In another embodiment of the invention, the spatial characteristics of the beam are controlled by a dynamic hologram that is, for each registered subscriber address, an optical match of the aforesaid electromagnetic radiation source and the receiver of the subscriber at that address. 1 independent claim and 2 dependent claims, 2 illustrations.

Description

technical field [0001] The invention relates to a method for establishing an access data packet transmission network in optical communication, which is used in the data transmission network. Background technique [0002] As is well known, the establishment of a data transmission network allowing user access is based on the use of optical fiber communication systems. (see example Russian Patent No. 2,127,489, IPC H04B10 / 12) [0003] The existing method for users to access the data transmission network system is to perform signal conversion on user data packets (data blocks) containing addresses, and use optical cables for transmission, and these optical cables are connected to respective optical transceivers at the network entry end and the user end. However, a major disadvantage of this method is the high cost of installing and using optical fiber lines, which exceeds the affordability of ordinary users. [0004] The closest prior art of the present invention is to set up ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/11H04B10/112H04Q11/00
CPCH04B10/1125H04Q2011/0026H04Q11/0067H04B10/11
Inventor 弗拉基米尔·伊斯凡迪亚洛维奇·阿扎洛夫
Owner 弗拉基米尔・伊斯凡迪亚洛维奇・阿扎洛夫
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