WIFI adapter and digital television signal distribution system using same

A cable digital TV and adapter technology, applied in the direction of selective content distribution, image communication, electrical components, etc., can solve the problems of video content rate limitation, Internet data service impact, program playback is not smooth, etc.

Inactive Publication Date: 2013-10-23
王新兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the rate at which the user can receive video content will ultimately be limited by the bandwidth of the home's access
At present, except for countries and regions with particularly developed basic communication facilities, the Internet access b

Method used

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  • WIFI adapter and digital television signal distribution system using same
  • WIFI adapter and digital television signal distribution system using same
  • WIFI adapter and digital television signal distribution system using same

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Embodiment Construction

[0043] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] Such as figure 1 As shown, the WiFi adapter proposed by the present invention is composed of two parts: a cable digital TV signal receiving module and a wireless routing and switching module.

[0045]The cable digital TV signal receiving module includes: (A) QAM signal receiving module, which is composed of radio frequency input terminal and signal distribution circuit, plus the channel decoding sub-module composed of multi-routing down-conversion, QAM demodulation, error correction decoding and other parts; ( B) network transmission part, is made of Ethernet MAC layer circuit, Ethernet physical layer circuit, transformer, Ethernet physical interface terminal; It consists of a scrambler module (optional), a code stream re-multiplexing sub-module, a code stream encapsulation sub-module, a network protocol stack sub-module, and a management control prot...

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PUM

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Abstract

The invention discloses a WIFI adapter and a digital television signal distribution system using the same. The WIFI adapter comprises a cable digital television signal receiving module and a wireless router switching module. The cable digital television signal receiving module comprises a QAM signal receiving module (A), a network transmission component (B) and a main control and data processing unit (C). The wireless router switching module comprises an Ethernet switching processing chip, a plurality of Ethernet signal transformers, a plurality of LAN interfaces, a WAN interface, a WIFI processing chip and a wireless signal receiving and dispatching antenna, wherein the Ethernet signal transformers, the LAN interfaces, the WAN interface and the WIFI processing chip are sequentially connected with the Ethernet switching processing chip, and the wireless signal receiving and dispatching antenna is connected with the WIFI processing chip. By means of the WIFI adapter and the digital television signal distribution system using the same, cable digital television services are expanded to various handheld and portable mobile devices, and the WIFI adapter and the digital television signal distribution system using the same bring great convenience to use for household users.

Description

technical field [0001] The present invention relates to digital TV network transmission, in particular to a WIFI adapter and the use of the adapter [0002] digital television signal distribution system. Background technique [0003] With the advancement of the construction of the Next Generation Broadcasting Network (NGB), the cable digital TV network will gradually complete broadband and two-way transformation. On the premise that the traditional standard definition and high definition live digital TV services are still reserved, the standard definition and high definition video on demand (VOD) services with interactive capabilities will become the mainstream of digital TV services. Live and on-demand video programs are transmitted to the coaxial cable distribution network through IPQAM modulators located at the edge of the network. After multiple downlink video program streams are combined into several multiplexed transport streams by the IPQAM modulator, they are trans...

Claims

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Application Information

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IPC IPC(8): H04N21/41H04N21/426H04N21/43H04N21/25H04N21/63H04W88/08
Inventor 王新兵
Owner 王新兵
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