CN202634622U

CN202634622U - Digital television set-top box

Info

Publication number: CN202634622U
Application number: CN 201220243968
Authority: CN
Inventors: 何颖; 姜明辉
Original assignee: Sichuan Jiuzhou Electronic Technology Co Ltd
Current assignee: Sichuan Jiuzhou Electronic Technology Co Ltd
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2012-12-26
Anticipated expiration: 2022-05-28

Abstract

The utility model belongs to the field of electronic equipment and particularly relates to a digital television set-top box. The digital television set-top box comprises a set-top box main board; the set-top box main board comprises a set-top box module; the digital television set-top box also comprises an Ethernet physical layer chip connected with the set-top box module, and a universal serial bus (USB) expanded circuit; the Ethernet physical layer chip is connected with at least one registered jack (RJ) 45 internet access; and the set-top box also comprises a linking module and a wireless route daughter board which is connected with the set-top box main board through the linking module. According to the digital television set-top box, the function of the digital television set-top box and a wireless Internet function are combined together, so that a user does not need to pay fees to different service providers every month, time of the user is saved, cablings at home or in other places are reduced, potential safety hazards are effectively reduced, and the user does not need to purchase other equipment, such as a router.

Description

A kind of DTV STB

Technical field

The utility model belongs to electronic device field, relates in particular to a kind of DTV STB.

Background technology

In the broadcasting and TV field; DTV STB is popularizing rapidly, along with the development of the integration of three networks and NGB, in the time of through STB online and development DTV; Develop into the broadband user to the user, and provide multinomial business service to become a kind of new trend.

Present family, and other need see the place of TV or online, STB basically all separates with the online connection device; Not only to pay the fees to different operators every month; And wiring too much causes potential safety hazard easily in the family, if there are a plurality of terminals to need online simultaneously; Also need repurchase router, increase expenditure cost.

The utility model content

The purpose of the utility model is to provide a kind of DTV STB, be intended to solve STB of the prior art and online connection device separately and in the family wiring too much increase problems such as cost.

For reaching above purpose; The utility model is to realize like this; A kind of DTV STB comprises the STB mainboard, and said STB mainboard comprises the STB module; Said STB mainboard also comprises: the ethernet physical layer chip and the USB expanded circuit that link to each other with said STB module, and said ethernet physical layer chip also connects at least one RJ45 network interface; Said STB also comprises: link block; And the wireless route daughter board that links to each other with said STB mainboard through said link block.

Further, said wireless route daughter board comprises: wireless routing module, high pass filter, low pass filter; And silicon tuner, cable modem and branch amplifier; Said high pass filter one termination digital television signal source; The other end links to each other with said branch amplifier one end; The said branch amplifier other end links to each other with said cable modem one end with said silicon tuner respectively; The said silicon tuner other end links to each other with said link block, and said cable modem links to each other with said low pass filter, said wireless routing module respectively and said link block links to each other another termination digital television signal source of said low pass filter.

Further, said link block comprises: IF+ holding wire, IF-holding wire, AGC holding wire and USB DM transmit holding wire, USB DP return path signal line and power line.

Further, said IF+ holding wire, IF-holding wire, AGC holding wire are the intermediate-freuqncy signal line, and said USB DM transmits holding wire and USB DP return path signal line is a USB standard interface line.

The utility model provides a kind of DTV STB; DTV STB function and wireless networking capabilities are incorporated into one; Without paying the fees to different operators every month, practice thrift user's time, reduce in the family or the wiring in other places; Reduce potential safety hazard effectively, also need not the user increases expenditure cost and removes to buy other equipment such as router.

Description of drawings

Fig. 1 is the modular structure figure of the DTV STB that provides of the utility model embodiment.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The purpose of the utility model provides a kind of DTV STB, can carry out the connection of outer net data and support the networking of family wireless route through coaxial cable.

The utility model is to realize like this; A kind of DTV STB; Comprise STB mainboard 100; STB mainboard 100 comprises STB module 101, and STB mainboard 100 also comprises: ethernet physical layer chip 102 that links to each other with STB module 101 and USB expanded circuit 104, ethernet physical layer chip 102 also connect at least one RJ45 network interface 103; STB also comprises: link block 200; And the wireless route daughter board 300 that links to each other with STB mainboard 100 through link block 200.

Wireless route daughter board 300 comprises: wireless routing module 301, high pass filter 302, low pass filter 303; And silicon tuner 305, cable modem 306 and branch amplifier 304; High pass filter 302 1 termination digital television signal source 400; The other end links to each other with branch amplifier 304 1 ends; Branch amplifier 304 other ends link to each other with cable modem 306 1 ends with silicon tuner 305 respectively; Silicon tuner 305 other ends link to each other with link block 200, and cable modem 306 links to each other with low pass filter 303, wireless routing module 301 and link block 200 respectively, low pass filter 303 another termination digital television signal source 400.

Link block 200 comprises: IF+ holding wire, IF-holding wire, AGC holding wire and USB DM transmit holding wire, USB DP return path signal line and power line.

IF+ holding wire, IF-holding wire, AGC holding wire are the intermediate-freuqncy signal line, and USB DM transmits holding wire and USB DP return path signal line is a USB standard interface line.

Be described in detail below in conjunction with the operation principle of specific embodiment the utility model:

As shown in Figure 1; The utility model is to realize like this; By the broadcasting and TV front end is digital television signal source 400, and the digital television signal that sends over through coaxial cable gets into wireless route daughter board 300, and digital television signal carries out filtering through high pass filter 302 then.

Filtered downstream signal gets into branch amplifier 304, and signal is amplified and is divided into identical two-way:

The silicon tuner 305 of leading up on the wireless route daughter board 300 is tuned as intermediate-freuqncy signal; The STB module 101 that IF+ holding wire through link block 200, IF-holding wire, AGC holding wire get into STB mainboard 100; STB module 101 is through the program part in the decoding digital intermediate frequency signal; The reduction pertinent program information, the playing programs function of completion common machine top box;

Another road is through cable modem 306 demodulation, the signal after the demodulation through deinterleaving with error correction after pass through data framing again, realize the data downstream of function of surfing the Net.Wireless routing module 301 is connected with cable modem 306, accomplishes the wireless receiving and dispatching of data, realizes the wireless device function of surfing the Net.Cable modem 306 returns return path signal packing modulation to coaxial cable with the exterior terminal signal through low pass filter 303.

Cable modem 306 links to each other with link block 200 through USB DM transmission holding wire, USB DP return path signal line; Link block 200 links to each other with the USB expanded circuit 104 of STB mainboard 100 through USB DM transmission holding wire, USB DP return path signal line, realizes the transmission and the passback of usb data.

USB expanded circuit 104 has a plurality of USB interfaces, realizes that a plurality of USB devices use simultaneously.

First end of ethernet physical layer chip 102 links to each other with STB module 101, and second end links to each other with RJ45 network interface 103, through RJ45 network interface 103, can realize the category-5 cable online.

In the utility model embodiment; DTV STB is incorporated into one with DTV STB function and wireless networking capabilities; Without paying the fees to different operators every month, practice thrift user's time, reduce in the family or the wiring in other places; Reduce potential safety hazard effectively, also need not the user increases expenditure cost and removes to buy other equipment such as router.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims

1. a DTV STB comprises the STB mainboard, and said STB mainboard comprises the STB module, it is characterized in that, said STB mainboard also comprises:

The ethernet physical layer chip and the USB expanded circuit that link to each other with said STB module, said ethernet physical layer chip also connects at least one RJ45 network interface;

Said STB also comprises:

Link block; And

The wireless route daughter board that links to each other with said STB mainboard through said link block.

2. DTV STB as claimed in claim 1 is characterized in that, said wireless route daughter board comprises:

Wireless routing module, high pass filter, low pass filter, silicon tuner, cable modem and branch amplifier;

Said high pass filter one termination digital television signal source; The other end links to each other with said branch amplifier one end; The said branch amplifier other end links to each other with said cable modem one end with said silicon tuner respectively; The said silicon tuner other end links to each other with said link block, and said cable modem links to each other with said low pass filter, said wireless routing module respectively and said link block links to each other another termination digital television signal source of said low pass filter.

3. DTV STB as claimed in claim 1 is characterized in that, said link block comprises: IF+ holding wire, IF-holding wire, AGC holding wire and USB DM transmit holding wire, USB DP return path signal line and power line.

4. DTV STB as claimed in claim 3 is characterized in that: said IF+ holding wire, IF-holding wire, AGC holding wire are the intermediate-freuqncy signal line, and said USB DM transmits holding wire and USB DP return path signal line is a USB standard interface line.