CN201248092Y - Portable receiver for GB digital television - Google Patents
Portable receiver for GB digital television Download PDFInfo
- Publication number
- CN201248092Y CN201248092Y CNU2008201512882U CN200820151288U CN201248092Y CN 201248092 Y CN201248092 Y CN 201248092Y CN U2008201512882 U CNU2008201512882 U CN U2008201512882U CN 200820151288 U CN200820151288 U CN 200820151288U CN 201248092 Y CN201248092 Y CN 201248092Y
- Authority
- CN
- China
- Prior art keywords
- digital television
- demodulator
- tuner
- usb
- decoder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
The utility model aims at providing a portable receiving device of a national standard digital television and solving the problems in the prior art that the volume of a receiving terminal of the digital television is overlarge, the carrying is difficult, and the like. The portable receiving device comprises a shell body and a mainboard fixed inside the shell body, wherein an antennal interface, a tuner, a demodulator, a decoder, a USB physical layer chip and a USB interface are arranged on the mainboard; the tuner is respectively connected with the antennal interface and the demodulator, the decoder is respectively connected with the demodulator and the USB physical layer chip, and the USB physical layer chip is connected with the USB interface; and an antenna is arranged on the shell body and is connected with the antennal interface. The utility model has the advantages that the volume is small, the carrying is convenient, a USB data line can be utilized to be matched with a plurality of electric devices for use, thereby the encoding reception and the encoding conversion of the DMB national standard digital television are finished so that the high-definition digital television can be televiewed through a mobile phone and a PDA.
Description
Technical field
The utility model relates to digital TV field, particularly a kind of digital television receiving apparatus.
Background technology
DMB is the english abbreviation of Digital Multimedia Broadcasting, is the new ideas Multimedia Mobile broadcast service that communication and broadcasting are merged mutually, is called as the radio broadcasting of the 3rd generation.The DMB technology is except supporting traditional audio broadcasting, also can by MGEG-4 H.264 with multiple modes such as MPEG-2, AAC+, multiple multimedia messagess such as transport information and news are transferred on the mobile phone, high-quality tonequality and diversified data, services are provided.And it adopts the CDM consistent with mobile phone (Code Division Multiplexing) technology, is particularly suitable for mobile reception environment, can tackle the multipath interference problem that signal quality descends in the mobile reception environment better.
The DMB technology is a kind of mode of utilizing satellite network to realize mobile phone TV services, utilizes mobile phone to accept the digital television program signal that satellite is broadcast.This DMB receives function high-quality image is provided, and uses this receiver module can make the user can receive the signal of broadcasting of terrestrial wireless TV and satellite television broadcasting simultaneously.
DMB-TH (Terrestrial Digital Multimedia TV/Handle Broadcasting) is a kind of terrestrial DTV transmission standard.DMB-TH has inherited the advantage of original system, and aspects such as coverage, antijamming capability, receptivity, the stability of a system are significantly improved than original DMB-T technology.The core of DMB-TH technology has adopted time-domain synchronization OFDM (TDS-OFDM:Time Domain Synchronous-Orthogonal Frequency DivisionMultiplexing) modulation technique of mQAM/QPSK, use up-to-date LDPC forward error correction coding technology, thereby can support more radio multimedium business more reliably.
The receiving terminal of existing digital television techniques, Digital Television, PC etc. often, volume is big, carry difficulty.And small-sized electric terminals such as mobile phone, PDA generally self all do not have digital TV receiving system, can not be used for watching the digital TV in high resolution program.
The utility model content
The purpose of this utility model provides a kind of miniDTV (DMB-TH) national standard digital television portable receiver (miniDTV is a portable digital television), solved the receiving terminal for digital television volume that prior art exists excessive, carry problem such as difficulty.A kind of national standard digital television portable receiver, comprise housing and be fixed on the enclosure interior mainboard, it is characterized in that: described mainboard is provided with antennal interface, tuner, demodulator, decoder, USB physical chip and USB interface, tuner is connected with demodulator with antennal interface respectively, decoder is connected with the USB physical chip with demodulator respectively, the USB physical chip is connected with USB interface, and described housing is provided with antenna, and antenna is connected with antennal interface.Be connected with the I2C bus between described decoder and the demodulator.Be connected with the I2C bus between described decoder and the tuner.Described tuner can be the single-chip synthesizer tuner.Described demodulator can be the single-chip channel demodulator.Described decoder comprises signal receiving and decoding module and coding module again.Advantage of the present utility model is: volume is little, and is easy to carry, can utilize usb data line and various electronic to be used, and finishes DMB national standard digital television received code and transcoding, makes mobile phone and PDA can both watch digital TV in high resolution.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
The utility model comprises housing 1 and is fixed on the mainboard 2 of housing 1 inside, it is characterized in that: described mainboard 2 is provided with antennal interface 3, tuner 4, demodulator 5, decoder 6, USB physical chip 7 and USB interface 8, tuner 4 is connected with demodulator 5 with antennal interface 3 respectively, decoder 6 is connected with USB physical chip 7 with demodulator 5 respectively, USB physical chip 7 is connected with USB interface 8, described housing 1 is provided with antenna 9, and antenna 9 is connected with antennal interface 3.
Be connected with I2C bus 10 between described decoder and the demodulator.Be connected with I2C bus 10 between described decoder and the tuner.Described tuner can be the single-chip synthesizer tuner.Described demodulator can be the single-chip channel demodulator.Described decoder comprises signal receiving and decoding module and coding module again.
When using the utility model, with the usb data line the utility model is connected with electronic equipments such as mobile phone or PDA by USB interface of the present utility model.The carrier wave high-frequency signal that antenna receives is sent into tuner by antennal interface; Tuner is accepted the control command of demodulator by the I2C bus, finishes tuber function, the output baseband signal, and baseband signal sent into demodulator; Demodulator is accepted the control command of decoder by the I2C bus, finishes demodulation function, output TS stream, and TS stream sent into decoder; Signal receiving and decoding module in the decoder is made decoding processing with TS stream, and then by coding module again the transcoding of doing of video or audio frequency is handled, and obtains the data format that can play on cell phone apparatus such as mobile phone or PDA at last.
Claims (6)
1. national standard digital television portable receiver, comprise housing and be fixed on the enclosure interior mainboard, it is characterized in that: described mainboard is provided with antennal interface, tuner, demodulator, decoder, USB physical chip and USB interface, tuner is connected with demodulator with antennal interface respectively, decoder is connected with the USB physical chip with demodulator respectively, the USB physical chip is connected with USB interface, and described housing is provided with antenna, and antenna is connected with antennal interface.
2. a kind of national standard digital television portable receiver as claimed in claim 1 is characterized in that: be connected with the I2C bus between described decoder and the demodulator.
3. a kind of national standard digital television portable receiver as claimed in claim 1 is characterized in that: be connected with the I2C bus between described decoder and the tuner.
4. a kind of national standard digital television portable receiver as claimed in claim 1 is characterized in that: described tuner can be the single-chip synthesizer tuner.
5. a kind of national standard digital television portable receiver as claimed in claim 1 is characterized in that: described demodulator can be the single-chip channel demodulator.
6. a kind of national standard digital television portable receiver as claimed in claim 1 is characterized in that: described decoder comprises signal receiving and decoding module and coding module again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201512882U CN201248092Y (en) | 2008-07-25 | 2008-07-25 | Portable receiver for GB digital television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201512882U CN201248092Y (en) | 2008-07-25 | 2008-07-25 | Portable receiver for GB digital television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201248092Y true CN201248092Y (en) | 2009-05-27 |
Family
ID=40731918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201512882U Expired - Fee Related CN201248092Y (en) | 2008-07-25 | 2008-07-25 | Portable receiver for GB digital television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201248092Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007507A (en) * | 2015-07-17 | 2015-10-28 | 房纪军 | Television signal receiver |
| US9723351B2 (en) | 2010-08-17 | 2017-08-01 | Qualcomm Incorporated | Web server TV dongle for electronic device |
-
2008
- 2008-07-25 CN CNU2008201512882U patent/CN201248092Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9723351B2 (en) | 2010-08-17 | 2017-08-01 | Qualcomm Incorporated | Web server TV dongle for electronic device |
| CN105007507A (en) * | 2015-07-17 | 2015-10-28 | 房纪军 | Television signal receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20080008299A (en) | Method and system for satellite communication | |
| CN101472183A (en) | Method and terminal for receiving and transmitting mobile digital broadcast television signal | |
| CN101534449A (en) | Receiving and transmitting method of a mobile digital broadcast television and used terminal | |
| CN105915306A (en) | China digital radio CDR receiving terminal and realization method of the receiving terminal | |
| CN101388974A (en) | Mobile digital multimedia broadcast receiving device and method | |
| CN205992905U (en) | A kind of Chinese Digital audio broadcasting CDR receiving terminal | |
| CN201248092Y (en) | Portable receiver for GB digital television | |
| KR20060066022A (en) | A system for integrate-receiving a terrestrial dmb and a satellite dmb | |
| CN200959641Y (en) | Cell-phone terminal | |
| KR20050033304A (en) | Digital multimedia broadcasting receiver | |
| CN201349326Y (en) | Audio storage system and mobile terminal | |
| CN105978096A (en) | Mobile power source device supporting digital broadcasting reception | |
| CN105072265A (en) | Mobile terminal with China digital radio broadcasting (CDR) receiving function | |
| CN103237242B (en) | The DVB-T receiver of vehicle-mounted MIMO-type | |
| CN101977289A (en) | Method, device, system and equipment for processing multiple-television-system signals | |
| CN202095019U (en) | Digital terrestrial television receiving terminal device | |
| CN101635799A (en) | Portable receiving system for national standard digital television | |
| KR200404176Y1 (en) | DMB Receiving Apparatus | |
| US20160191994A1 (en) | Digital Terrestrial Television On A Mobile Device | |
| CN204967944U (en) | Mobile terminal with china digital audio broadcasting (CDR) receives function | |
| CN202979170U (en) | Satellite receiver having functions of digital media signal storing and sending | |
| KR200416538Y1 (en) | The portable DMB reception device that USB port is composed. | |
| EP1727361A2 (en) | Digital broadcasting reception terminal and method for processing digital broadcasting data using the same | |
| CN2924958Y (en) | DVB-H receiving terminal | |
| Pekowsky et al. | DVB-H architecture for mobile communications systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20100725 |