Household multimedia gateway system based on DTV-VLC key technology

A DTV-VLC, multimedia gateway technology, applied in the field of home multimedia gateway system based on DTV-VLC key technology, can solve the problems of poor product stability, high complexity of system hardware, poor customer experience, etc., to simplify the production process, The effect of improving transmission efficiency and reducing production costs

Active Publication Date: 2017-02-08
深圳市凯利华电子有限公司
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the products on the market are integrated products of multiple modules and multiple systems, the customer experience is relatively poor, and the system hardware is highly complex, and the product stability is poor, and the key technology research and development of digital TV network and visible light communication fusion transmission is currently domestic There are no similar products out there

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Household multimedia gateway system based on DTV-VLC key technology
  • Household multimedia gateway system based on DTV-VLC key technology
  • Household multimedia gateway system based on DTV-VLC key technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] see Figure 1 to Figure 3 A home multimedia gateway system 1 based on DTV-VLC key technology of the present invention includes a device for receiving terrestrial digital television signals (DTMB) transmitted by outdoor wireless broadcasting base stations or cable TV signals (DVB-C) accessed by wired cables A terrestrial digital information standard receiver; the terrestrial digital information standard receiver is integrated with a DTMB / DVB-C demodulation unit and a PLC adaptation unit;

[0030] The terrestrial digital information standard receiver receives the home DTMB signal, receives, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a household multimedia gateway system based on the DTV-VLC key technology, and the system comprises a terrestrial digital information standard receiver which is used for receiving a DTMB (Digital Terrestrial Multimedia Broadcasting) signal emitted by an outdoor radio broadcasting base station or a DVB-C (digital video broadcasting) signal connected through a wired cable. The terrestrial digital information standard receiver is integrated with a DTMB / DVB-C demodulation unit and a PLC adaptive unit, and is used for receiving an home-entry DVB-C signal, carrying out the demodulation and decoding of the home-entry DVB-C signal, restoring a digital television video code stream, and modulating the digital television video code stream into a TDS-OFDM signal. The terrestrial digital information standard receiver comprises a tuner, a local oscillator drive analog-digital converter, an automatic gain control unit for the statistics of energy of received signals, an interpolation filtering unit, a channel equalizer, and a Hibert filter. The system effectively reduces the actual engineering implementation software and hardware complexity of a DTV-VLC integration broadcast system, improves the transmission efficiency, reduces the processing time delay, simplifies the production process of multimedia gateway equipment, and reduces the production cost.

Description

[0001] [technical field] [0002] The invention relates to the technical field of home multimedia gateways, in particular to a home multimedia gateway system based on DTV-VLC key technology, which has good stability, simple structure, high transmission efficiency and can effectively reduce costs. [0003] [Background technique] [0004] At present, most of the products on the market are integrated products of multiple modules and multiple systems, the customer experience is relatively poor, and the system hardware is highly complex, and the product stability is poor, and the research and development of key technologies for digital TV network and visible light communication fusion transmission is currently domestic There are no similar products out there. [0005] Based on the above problems, how to make full use of the effective transmission bandwidth of power line and visible light communication, improve the efficiency of spectrum utilization, and effectively overcome the bott...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/426H04N21/436
CPCH04N21/42607H04N21/43615
Inventor 黄峰李金东宋玉龙
Owner 深圳市凯利华电子有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products