Multiple input multiple output (MIMO) digital video broadcasting-terrestrial (DVB-T) transmitter

A DVB-T and transmitter technology, applied in the direction of space transmission diversity, selective content distribution, color TV components, etc., can solve problems such as poor TV quality, affecting normal broadcasting of information, and weak receiving signals

Inactive Publication Date: 2013-08-07
WUXI BEIDOUXINGTONG INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fast-moving and unfixed characteristics of mobile vehicles including taxis and buses, they may move to places far away from the transmission center. Due to the fading of the signal, the received signal will be very weak and the TV quality will be poor. Poor problem, which affects the normal playback of information

Method used

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  • Multiple input multiple output (MIMO) digital video broadcasting-terrestrial (DVB-T) transmitter

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Embodiment Construction

[0014] The embodiment of the MIMO type DVB-T transmitter of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] figure 1A structural block diagram of a MIMO DVB-T transmitter according to an embodiment of the present invention is shown. Wherein said DVB-T transmitter comprises, packing and multiplexing module 4, source data processing module 5, digital up-conversion processing module 6 and two antennas 7, said packing and multiplexing module 4, signal source data processing module 5 and The digital up-conversion processing module 6 is connected in sequence, and the audio and video data are respectively packaged and multiplexed, source data processed, and digitally up-converted, so as to output the radio frequency signal after the digital up-converted process. The two antennas 7 are connected to the The digital up-conversion processing module 6 is used to receive the radio frequency signal output by the digital up-conve...

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Abstract

The invention relates to a multiple input multiple output (MIMO) digital video broadcasting-terrestrial (DVB-T) transmitter. The transmitter comprises a packaging multiplexing module, a signal source data processing moule, a digital up frequency conversion processing module and two antennas, wherein the packaging multiplexing module, the signal source data processing module and the digital up frequency conversion processing module are sequentially connected with one another and respectively used for packaging and multiplexing audio-video data, processing the signal source data and carrying out the digital up conversion for the signal source data so as to output a radio frequency signal after the digital up conversion processing, the two antennas are connected with the digital up conversion module so as to receive the radio frequency signal outputted by the digital up conversion processing module and to transmit an MIMO DVB-T signal. Through the MIMO DVB-T transmitter, the signal quality of a car-mounted digital television signal can be improved by utilizing the MIMO technology, and the technical problems such as weak receiving signal and poor television quality caused by the car mounting can be overcome.

Description

technical field [0001] The invention relates to the field of vehicle-mounted television transmission, in particular to a vehicle-mounted multiple-input multiple-output (MIMO) digital television terrestrial broadcast DVB-T transmitter. Background technique [0002] Mobile vehicles are important carriers of information, especially for public transport. In order to expand their advertising business, some entertainment media companies have shifted their attention to moving vehicles including taxis and buses, using these moving vehicles as carriers of advertising information, thereby creating a lot of money for both entertainment media companies and public utility operators. Economic benefits. For people who ride in vehicles, this mode of operation also brings benefits. It can not only pass the boring free time when riding in vehicles, but also obtain the product information they need. So kill three birds with one stone. [0003] With the development of information technology a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/38H04N21/414H04B7/04
Inventor 不公告发明人
Owner WUXI BEIDOUXINGTONG INFORMATION TECH
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