Wired TV network 'narrow band home access' transmission method

A technology of cable TV network and transmission method, which is applied in the field of frequency division multiplexing system, and achieves the effect of high security

Inactive Publication Date: 2010-12-15
石方太
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, practice has shown that it is not satisfactory

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  • Wired TV network 'narrow band home access' transmission method
  • Wired TV network 'narrow band home access' transmission method
  • Wired TV network 'narrow band home access' transmission method

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Embodiment Construction

[0010] 2. The radio frequency transmission scheme is that the TV receiver is generally not set up in the interior frequency input interface. If the intermediate frequency input scheme is adopted when transmitting analog TV signal, it will inevitably encounter the obstacles of the user's difficult to do when the medium frequency interface is changed.For this reason, this plan is proposed.That is to change the user receiving machine to allocate the tunter in the setting line to make the tunner output the radio frequency signal (such as a channel in VL) and then support the radio frequency input with the user receiver.The change of the hiechroma is a matter of equipment provider, and it is obviously more reality.Coupled with the current VL -frequency band, most of the cable TV networks have not been used, which has added feasibility to this solution.If the user needs two TVs to watch at the same time, a radio frequency channel can be added to solve it, so as to avoid repeatedly laid ...

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Abstract

The present invention relates to a transmitting method for narrow band access in cable television network, which belongs to the frequency division multiplexing system technology field. . A tuning unit and a microprocessor combined with the tuning unit are installed in the HUB at the joint of the route network and home network, to process the remote control information uploaded from users and the authorization message downloaded from the network manager. The frequency outputted by the tuning unit can be an intermediate frequency or can be a fixed radio frequency. The present invention makes the cable TV access network became simply and easy to transmit, and easy to manage for operators; which has advantages of low investment, high security, flexible operation and is favorable for the transition of the digital television. The present invention also provides a novel chance to realize ''three networks in one'' according to real fee method and audience rating survey.

Description

(1) Technical field: [0001] The present invention involves a cable TV network transmission method, which is the field of frequency multi -road reuse system technology. (2) Background technology: [0002] Since the birth of a cable TV transmission network, it has been adopting a broadband transmission mode.When there are more and more transmitted programs, when the transmission of broadband is getting greater, people usually gradually upgrade network bandwidth from 300MHz to 550MHz, 750MHz, or even 1000MHz.As a result, the cost of network construction has doubled, which seems to be a matter of righteousness and logical, and no one has raised objection to this.With the large application of optical transmission equipment in recent years, its contribution to the main support network is indeed great, but optical fiber households are still far away.In addition, with the gradual expansion of the Internet, the number of users has gradually increased, and the scientific and orderly manag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44H04N7/16H04N7/10H04N21/426
Inventor 石方太
Owner 石方太
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