CN2409727Y - Multifunctional network television set top box - Google Patents

Abstract

The multifunctional network TV set-top box disclosed by the utility model comprises a single-chip PC chip 1, an I/O interface 6, a random access memory 2, a read-only memory 5, a flash memory 9, a multiplexing circuit 3, a bus interface 4, and a modem 7 , an infrared receiving and processing circuit 10, an infrared keyboard 11 or an infrared remote controller 12, and is characterized in that it also includes a sound card 21, a video digitization circuit 18 and an intelligent IC card interface 13; the modem 7 has a DSVD function. It has the functions of web browsing, videophone, smart IC card interface and multimedia e-mail, and has the characteristics of high utilization rate of hardware.

Description

Multifunctional network topbox of TV set

The utility model belongs to electronic device field, relates to a kind of TV set-top box, especially relates to a kind of multifunctional network topbox of TV set.

Existing network television-set top-set-box low price, internet function is gone up in having of having easily, individual other attaches simple personal computer function, relatively be fit to China's general lower national conditions of computer level at present, existing common video telephone then can not be gone up the Internet, and does not possess the intellective IC card interface, not high to hardware utilization, function is few, and the ratio of performance to price is low, uses dumb convenience.

The purpose of this utility model is to disclose a kind of multifunctional network topbox of TV set, have network browsing, video telephone, intellective IC card interface and rich email function simultaneously, relatively be fit to China's general lower national conditions of computer level at present, have low price, multiple functional, enforcement is easy, easy and simple to handle, the hardware utilance is high characteristics, also be convenient to realize paying by mails, can extensively in numerous occasions such as family, office, hotel, use.

Implementation of the present utility model is: it is by monolithic PC chip (System On Chip), the I/O interface, random asccess memory, read-only memory, flash memory, multi-channel conversion circuit, bus interface, modulator-demodulator, infrared receiving processing circuit, infrared keyboard or Infrared remote controller are formed, monolithic PC chip all links to each other with multi-channel conversion circuit with bus interface, infrared receiving processing circuit, modulator-demodulator all links to each other with the I/O interface with bus interface, read-only memory, flash memory all links to each other with bus interface with monolithic PC chip, random asccess memory links to each other with monolithic PC chip, and it is characterized in that: it also comprises sound card, video digitizer circuit and intellective IC card interface; Sound card links to each other with bus interface, and the video digitizer circuit links to each other with monolithic PC chip, and the intellective IC card interface links to each other with the I/O interface; Modulator-demodulator is for having the modulator-demodulator of speech data simultaneous interpretation function (promptly having the DSVD function).Read-only memory can be used for storage system boot and embedded OS, and flash memory can be used for storing user's program and data etc.The I/O interface also can link to each other with a floppy drive, and multi-channel conversion circuit also can link to each other with a hard disk, is used for exchange and preservation information.

Monolithic PC chip, I/O interface, random asccess memory, read-only memory, flash memory, multi-channel conversion circuit, bus interface, infrared receiving processing circuit, intellective IC card interface, infrared keyboard or Infrared remote controller parts all can be standard package.

Operation principle of the present utility model is as follows:

When using the utility model, the audio output of video signal output circuit of the present utility model and sound card all links to each other with television set, modulator-demodulator links to each other with telephone set with local telephone, and video camera/camera links to each other with the video digitizer circuit, and microphone links to each other with the audio input end of sound card.

Form basic computer system by monolithic PC chip, random asccess memory, multi-channel conversion circuit, bus interface, I/O interface and read-only memory, behind the power-on reset by monolithic PC chip by bus the random asccess memory of packing into of boot in the read-only memory, and finish the initialization of I/O interface and demonstration, then the embedded OS in the read-only memory is called in random asccess memory, so far finished basic bootup process.Simultaneously, also initialization sound card interface of embedded OS, video digitizer circuit, modulator-demodulator and intellective IC card interface circuit.

Monolithic PC chip receives the order and the execution of sending from infrared keyboard or Infrared remote controller by I/O interface and infrared receiving processing circuit.

Basic bootup process finishes after vision signal is exported the utility model function menu, and function menu comprises network browsing, rich email and video telephone content.The user operates by infrared keyboard or Infrared remote controller.

The basic functional principle of network browsing: when the user carries out network browsing, start Web-browsing software, system puts through by modulator-demodulator and local telephone and signs in to the Internet systemic presupposition or user's appointment, system sends to the Internet with user's request through modulator-demodulator and local telephone, after Internet Server is handled information is sent in the system through local telephone and modulator-demodulator, system handles is after video signal output circuit and sound card output to television set.

The basic functional principle of rich email: when the user receives and dispatches rich email, start rich email software, by the microphone typing sound that is connected with the audio input end of sound card, image and seizure storage by video digitizer processing of circuit video camera/camera collection, system carries out software compression back as first annex by monolithic PC chip by computer standard compression algorithm form (as ZIP compression algorithm form) with the sound of typing and the image of seizure, Word message and other annex of adding user's input generate rich email, preserve then and send.To the rich email that receives, after by monolithic PC chip first annex being carried out software reduction, automatically play sound wherein, the automatic image that shows wherein by television set, and show Word message and other annex of rich email by television set.

When transmission and reception rich email, put through and sign in to the Internet systemic presupposition or user's appointment by modulator-demodulator and local telephone, system sends to the Internet with user's rich email through modulator-demodulator and local telephone, simultaneously the rich email that other people issue the user in the Internet is received system through local telephone and modulator-demodulator.

The basic functional principle of video telephone function: user's off-hook is put through the phone that the called party has video telephone function, after modulator-demodulator is shaken hands connection, monolithic PC chip will carry out the software Real Time Compression by agreement H.263 again from the dynamic image of video camera/camera after the collection of video digitizer circuit, and the dynamic image after will compressing by modulator-demodulator and local telephone is transferred to the other side, and we's dynamic image also can show on we's television set simultaneously; Meanwhile, monolithic PC chip carries out software to the DID that receives the other side's compression by modulator-demodulator and local telephone by agreement H.263 and reduces in real time and be presented on we's the television set, thereby finishes the transmission and the demonstration of visual image.DSVD chip in the modulator-demodulator is used for the real-time voice information digitalization of telephone set and synthetic with monolithic PC chip processed video image, after the modulator-demodulator modulation, be sent on the other side's the modulator-demodulator, simultaneously modulator-demodulator is received and demodulation after information in the voice and video image information separate, play voice messaging in real time by telephone set, to guarantee the continuous and load that alleviates the decoding of monolithic PC chip of voice in the video telephone course of work.Behind the end of conversation, user's on-hook also disconnects the connection of modulator-demodulator.

Basic functional principle when the intellective IC card interface uses: after the user inserted the IC-card deck with IC-card, monolithic PC chip detection can judge whether it is legal IC-card for information about by vendor code in the IC-card and issue code etc. behind IC-card; If legal IC-card, monolithic PC chip can communicate by the interface and the IC-card of ISO7816-1 standard, its communication protocol meets the regulation of ISO7816 standard, IC-card is in the state that takes orders all the time, in case after receiving the order that monolithic PC chip sends, just carry out relevant operation, according to the ISO7816 agreement result is issued monolithic PC chip then.In this way, system can realize operations such as the resetting of IC-card, verification password, change password, read-writes.And IC-card can be used to store address book in the rich email, the station address in the Web-browsing software, the address list in the video telephone etc., also can be used for paying by mails.

Below in conjunction with accompanying drawing the utility model is further described.

Connection diagram when Fig. 1 is the utility model use.

Fig. 2 is a structure principle chart of the present utility model.

Fig. 3 is the circuit theory diagrams of video digitizer circuit of the present utility model.

Fig. 4 is the circuit theory diagrams of intellective IC card interface of the present utility model.

Fig. 5 is total workflow diagram of the present utility model.

Fig. 6 is the workflow diagram of selection internet browsing function of the present utility model.

Fig. 7 is the workflow diagram of selection rich email function of the present utility model.

Fig. 8 is the workflow diagram of selection video telephone function of the present utility model.

Referring to Fig. 1, Fig. 2, the video signal output circuit 8 of the utility model 25 links to each other with television set 26 with the audio output of sound card 21, modulator-demodulator 7 links to each other with telephone set 14 with local telephone 15, video camera/camera 19 links to each other with video digitizer circuit 18, and microphone 29 links to each other with the audio input end of sound card 21.Sound card 21 can link to each other with a joystick 22, is used to play games.

Form basic computer system 23 by monolithic PC chip 1, random asccess memory 2, multi-channel conversion circuit 3, bus interface 4, read-only memory 5 and I/O interface 6, add modulator-demodulator 7, flash memory 9, infrared receiving processing circuit 10, infrared keyboard 11 or the general network television-set top-set-box 24 of Infrared remote controller 12 compositions.I/O interface 6 links to each other with a parallel port 16, can be used for peripheral hardwares such as external printer, ZIP floppy drive.Monolithic PC chip 1, I/O interface 6, random asccess memory 2, read-only memory 5, flash memory 9, multi-channel conversion circuit 3, bus interface 4, infrared receiving processing circuit 10, intellective IC card interface 13, infrared keyboard 11 or Infrared remote controller 12 are standard package.Monolithic PC chip 1 optional STPCC0180BTC3 with STMicroelectronics Ltd. (ST Microelectronics Ltd.); Bus interface 4 can adopt the isa bus standard; Infrared receiving processing circuit 10 can be selected the JME-3221 of Chinese smart moulding compound electronics (Shenzhen) Co., Ltd for use; Modulator-demodulator 7 can be selected the RC336D-SVD of U.S.'s Conexant (CONEXANT) company for use, and it is to adopt the standard serial mode to be connected with I/O interface 6.

Referring to Fig. 3, video digitizer circuit 18 is main formation by the SAA7113H chip (claiming video input processor again) of Dutch PHILIPS Co., and the 23rd, 24,40 pins of SAA7113H chip link to each other with I/O interface 6; 12nd, 13,14,15,19,20,21,22 link to each other with monolithic PC chip 1 with 17 pins; Vision signal output from video camera/camera 19 links to each other with the 4th pin of SAA7113H chip after R1, R2 impedance matching and dividing potential drop and the coupling of C5 signal.

Referring to Fig. 4, in the circuit of intellective IC card interface 13, R3 is a protective resistance, and R4, R5, R6 are pull-up resistor, and K1 is for there being card detecting switch.

Referring to Fig. 5, be total workflow diagram of the present utility model.

Referring to Fig. 6, be the workflow diagram of selection internet browsing function of the present utility model.

Referring to Fig. 7, be the workflow diagram of selection rich email function of the present utility model.

Referring to Fig. 8, be the workflow diagram of selection video telephone function of the present utility model.

Claims (2)

1. A multi-functional Internet TV set-top box, consisting of a single-chip PC chip (System On Chip) 1, I/O interface 6, random access memory 2, read-only memory 5, flash memory 9, multiplexing circuit 3, and bus interface 4. Composed of modem 7, infrared receiving and processing circuit 10, infrared keyboard 11 or infrared remote controller 12, single-chip PC chip 1 and bus interface 4 are connected to multiplexing circuit 3, infrared receiving and processing circuit 10, modem 7 and bus interface 4 are all connected with the I/O interface 6, the read-only memory 5, the flash memory 9 and the single-chip PC chip 1 are all connected with the bus interface 4, and the random access memory 2 is connected with the single-chip PC chip 1, and it is characterized in that: it also includes Sound card 21, video digitization circuit 18 and smart IC card interface 13; Sound card 21 links to each other with bus interface 4, video digitization circuit 18 links to each other with single chip PC chip 1, smart IC card interface 13 links to each other with I/O interface 6; Modem 7 is A modem with voice and data simultaneous interpretation function (that is, with DSVD function). 2. The multifunctional Internet TV set-top box according to claim 1, wherein the I/O interface 6 is connected to a floppy drive 17, and the multiplexing circuit 3 is connected to a hard disk 20.

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