CN2391386Y - Whole-scene data broadcasting receiving set-top box for television - Google Patents

Abstract

The utility model belongs to a whole-scene data broadcasting receiver in a multimedia general-purpose information system for a television. A whole-scene data broadcasting receiving set-top box comprises a box body, a power supply in the box body, a whole-scene data receiving card for the television and a main board composed of a processing CPU and a display driver. After treated, signals are sent to a television or a VGA to be output. The utility model uses a cable television network, and has low cost; signal bandwidth is increased, and propagation speed is up to 5Mbps; the utility model can sightsee internet and electronic periodicals, can send and receive E-mails, and can also receive stock market and distance education programs, etc. Thus, the utility model is suitable for both the old and the young.

Description

TV whole audience data broadcast receiver top box

The utility model belongs to data broadcasting multimedia general information system receiving system.

Television data broadcast is a kind of broad-spectrum new media, is to utilize existing Television Broadcasting Network to carry out the new technology that information is propagated, and television data broadcast is bundled in digital signal in the TV signal, the data transfer mode of transmitting together with TV signal.

The set-top box that more present manufacturers begin to develop mainly is by modulator-demodulator, data processing CPU, and display driver is formed, and this set-top box is to realize online visit Internet information by telephone line.Its deficiency is to use the expense height, and user's narrow band access can only be provided, and can not satisfy the present situation of information explosion, owing to adopt point-to-point transmission, along with increasing of number of netizens, problems such as difficulty and transfer rate slow down can occur having Internet access by dialing.

The purpose of this utility model provides a kind of signal bandwidth to be increased, and propagation velocity is fast, the TV whole audience data broadcast receiver top box that not influenced by number of netizens.

This is novel to be that set-top box is by box body, TV input and TV output on the box body, power supply in the box body, mainboard, memory and hard disk or pcmcia memory card are formed, it is characterized in that the digital signal that motherboard circuit constitutes in the TV input signal sends into data processing CPU through whole audience data tv receiver card, after the processing, send into the output of TV output through conversion of signals and display driver.

The utility model concrete structure and embodiment accompanying drawings are as follows:

Fig. 1, motherboard circuit logic diagram Fig. 2, TV whole audience data broadcast receiver top box structure chart Fig. 3, TV whole audience data receiver card logic diagram Fig. 4, set-top box integrated circuit connection layout Fig. 5, whole audience TV data receiving card circuit diagram Fig. 6, data processing cpu circuit figure Fig. 7, Fig. 8, conversion of signals and display driver circuit figure Fig. 9, memory circuitry figure Figure 10, buffer circuit figure Figure 11, isa bus circuit diagram Figure 12, PCMCIA circuit diagram

As shown in Figure 2, this set-top box comprises box body 1, TV input 2 and TV output 4 on the box body, power supply 5 is housed in the box body, hard disk 6 and mainboard 7 are formed, wherein motherboard circuit constitutes as shown in Figure 1, the TV input signal passes through cable television network, at first send into whole audience data tv receiver card through the TV input and see Fig. 5, see that through isa bus the data processing CPU that Figure 11 sends on the mainboard sees Fig. 6, this CPU can adopt MPC860/MPC823 series or INTEL and compatible Pentium class CPU thereof, after CPU handles, signal sends into conversion of signals and display driver circuit is seen Fig. 7, and Fig. 8 exports from the TV output again, wherein conversion of signals and display driver circuit pass through CyberPro2010/AD7110, AD7175/6 series integrated circuit realizes that the memory that data processing CPU connects sees that Fig. 9 capacity is 16-32M, and external memory adopts pcmcia memory card to see Figure 12 or hard disk, the hard-disk capacity that connects with CPU by IDE hard-disk interface on the mainboard is greater than 1G, and the whole circuit diagram that connects is seen Fig. 4.

Whole audience data tv receiver card constitutes as shown in Figure 3, physical circuit is seen Fig. 5, the TV signal is at first sent into digital tuning tuner FI 1256 MK2/1, signal is sent into the television interface circuit after treatment, this circuit adopts the SAA5231 chip to realize, the television interface circuit output signal is sent into data processing CPU on the mainboard by isa bus after signal acquisition processing circuit is handled.Data acquisition circuit adopts microprocessor AT90S1200 chip, and metadata cache adopts the IDT7202 chip, and wherein digital tuning tuner television interface chip and data acquisition circuit are controlled by decoding control circuit EPM7032S-10.Mainboard conversion of signals display driver also can connect with VGA output 3 except that with TV output 4 connects simultaneously, has TV, VGA and exports coexistence.Whole audience data tv receiver card can be made independent card, also can be integrated on the mainboard.Also can plug into infrared radio keyboard and mouse of complete machine simultaneously, and can dial up on the telephone and send and receive e-mail through telephone wire by built-in/external modulator-demodulator.

Physical circuit is seen accompanying drawing.According to above-mentioned selected chip specifications and models, also reference circuit connects in the specification that can provide by manufacturer.

The utility model advantage: 1, adopt the signal communications media of broadcasting and television network, utilize Data point can make spread speed increase to the characteristics of face, and usage charges reduce greatly; 2, not only can But multimedia comprehensive information, the also transceiver electronics postals such as online visit INTERNET, electronic journal Part receives the real-time stock market in Shanghai and Shenzhen, particularly can also receiving remote educational radio joint Order, as in, the synchronous educational programs of primary school etc. make more members of society can accept high-quality Education, accomplished that really old children is all suitable, will be accepted by users; 3, adopt the whole audience Digital technology increases signal bandwidth, and spread speed is accelerated, and traffic rate can reach 5Mbps; 4, Utilize pcmcia memory card or hard-disk storage technology, important information recording/is got off, so that At any time call, namely made things convenient for the user, increased again the purposes of STB; 5 by day wealth whole audience Digital broadcasting STB and cheap cable television network combination reach universal computer, can use up Early realize 3C (calculating communication, consumption) and 3E (education, amusement, electronic publishing), increase the people The joy of life; 6, need not depend on PC, self have the complete Household information of a cover Receive and browsing apparatus.

Claims (3)

1, a kind of TV whole audience data broadcast receiver top box, comprise box body, TV input and TV output on the box body, power supply, mainboard, memory and hard disk in the box body or pcmcia memory card are formed, it is characterized in that: the digital signal that motherboard circuit constitutes in the TV input signal is sent into data processing CPU through whole audience data tv receiver card, handles after display driver is sent into the output of TV output.

2, TV whole audience data broadcast receiver top box according to claim 1, the formation that it is characterized in that whole audience data tv receiver card is that digital signal in the TV input signal is after the digital tuning tuner is handled, send into the television interface circuit, the signal of television interface circuit output is after data acquisition circuit is handled, send into data processing CPU on the mainboard with the form of digital signal by isa bus, wherein television interface circuit and data acquisition circuit are controlled by decoding control circuit.

3, according to claim 1 and 2 described TV whole audience data broadcast receiver top boxs, it is characterized in that display driver output on the mainboard connects the VGA output on the box body simultaneously, data processing CPU connects with hard disk with pcmcia memory card or by the ide interface on the mainboard by mainboard, can plug into simultaneously infrared radio keyboard and mouse, and can pass through built-in/External modem, dial up on the telephone through telephone wire.

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