CN202652431U - Digital television receiving terminal and power adapter - Google Patents
Digital television receiving terminal and power adapter Download PDFInfo
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- CN202652431U CN202652431U CN 201220147843 CN201220147843U CN202652431U CN 202652431 U CN202652431 U CN 202652431U CN 201220147843 CN201220147843 CN 201220147843 CN 201220147843 U CN201220147843 U CN 201220147843U CN 202652431 U CN202652431 U CN 202652431U
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- power line
- modulation
- demodulation
- receiving terminal
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Abstract
Embodiments of the utility model disclose a digital television receiving terminal and a power adapter. The digital television receiving terminal comprises a modulation and demodulation module, which is electrically connected with a power line to demodulate a data signal on the power line, receive upload data from a data processing module and modulate the upload data to the power line; the data processing module, which is electrically connected with the modulation and demodulation module to convert the modulated data into audio/video signals and output, to a display terminal, the audio/video signals which then are played; and a power conversion module, which is electrically connected with the power line, the modulation and demodulation module and the data processing module to convert an alternating current through the power line into a direct current and transmit the direct current to the data processing module and the modulation and demodulation module, respectively. By adopting the digital television receiving terminal and the power adapter of the utility model, the cost is reduced, and user convenience is achieved.
Description
Technical field
The utility model relates to the communications field, relates in particular to a kind of receiving terminal for digital television and a kind of power supply adaptor.
Background technology
Along with the propelling of the national integration of three networks, IPTV(Interactive Personality TV, IPTV) begin to come into huge numbers of families.At present, the placement scheme of general IPTV system is: Homeplug (being power line modem)+set-top box.Homeplug shape general on the Vehicles Collected from Market all is similar to power supply adaptor, and the volume ratio power supply adaptor is huger, is inserted in to be easy on the socket shelter from adjacent socket, affects the use of other sockets.In addition, all be integrated with power transfer module in Homeplug and the set-top box, cause the waste of power transfer module, increased hardware cost.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of receiving terminal for digital television and a kind of power supply adaptor are provided, and can reduce the cost of IPTV system, makes things convenient for the user to the use of IPTV system.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of receiving terminal for digital television, comprising:
The modulation /demodulation module, described modulation /demodulation module is electrically connected with a power line, and the data-signal on the described power line is carried out demodulation, and receives the uploading data from data processing module, and described uploading data is modulated on the described power line;
Data processing module, described data processing module is electrically connected with described modulation /demodulation module, and the data of described data processing module after with described demodulation change into audio-video signal, and described audio-video signal are exported to display end play;
And power transfer module, described power transfer module is electrically connected respectively with described power line, described modulation /demodulation module and described data processing module, described power transfer module converts the alternating current on the described power line to direct current, and is transferred to respectively described data processing module and described modulation /demodulation module.
Wherein, described receiving terminal for digital television also comprises: for the first filtration module of the switching noise that suppresses described power transfer module, described the first filtration module comprises: the first inductance, the first resistance, the second inductance, the second resistance are connected between the zero line and described power transfer module of power line after described the first inductance and described the first resistance parallel connection; Be connected between the live wire and described power transfer module of power line after described the second inductance and described the second resistance parallel connection.
Wherein, described receiving terminal for digital television also comprises: be used for the second filtration module with the target signal filter beyond the described power line carrier frequency range, described the second filtration module comprises: transformer, electric capacity, the 3rd resistance, be connected to after the series connection of described electric capacity and described the 3rd resistance between the first input end of the live wire of power line and described transformer, the second input of described transformer connects the zero line of power line, and the output of described transformer connects described modulation /demodulation module.
Wherein, described modulation /demodulation module is arranged at described receiving terminal for digital television inside.
Correspondingly, it is a kind of for the external power supply adaptor of receiving terminal for digital television that the utility model embodiment also provides, and comprising:
The modulation /demodulation module, described modulation /demodulation module is electrically connected with a power line, data-signal on the described power line is carried out demodulation, and the data after the described demodulation are changed into audio-video signal send to described receiving terminal for digital television, and receive uploading data from described receiving terminal for digital television, and described uploading data is modulated on the described power line;
And power transfer module, described power transfer module is electrically connected respectively with described power line, described modulation /demodulation module and described receiving terminal for digital television, described power transfer module converts the alternating current on the described power line to direct current, and is transferred to respectively described receiving terminal for digital television and described modulation /demodulation module.
Wherein, described power supply adaptor also comprises: for the first filtration module of the switching noise that suppresses described power transfer module, described the first filtration module comprises: the first inductance, the first resistance, the second inductance, the second resistance are connected between the zero line and described power transfer module of power line after described the first inductance and described the first resistance parallel connection; Be connected between the live wire and described power transfer module of power line after described the second inductance and described the second resistance parallel connection.
Wherein, described power supply adaptor also comprises: be used for the second filtration module with the target signal filter beyond the described power line carrier frequency range, described the second filtration module comprises: transformer, electric capacity, the 3rd resistance, be connected to after the series connection of described electric capacity and described the 3rd resistance between the first input end of the live wire of power line and described transformer, the second input of described transformer connects the zero line of power line, and the output of described transformer connects described modulation /demodulation module.
Wherein, described modulation /demodulation module is arranged at described power supply adaptor inside.
Implement the utility model embodiment, have following beneficial effect:
To receiving terminal for digital television or power supply adaptor, power by power transfer module, saved cost by the data processing module of modulation /demodulation module and receiving terminal for digital television with the modulation /demodulation module integration for embodiment of the present utility model.In addition, with the modulation /demodulation module integration in receiving terminal for digital television, can avoid making because the Homeplug volume is excessive other socket can not the situation of use, made things convenient for the user.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the first embodiment of receiving terminal for digital television of the present utility model;
Fig. 2 is the structural representation of the second embodiment of receiving terminal for digital television of the present utility model;
Fig. 3 is the circuit structure diagram of embodiment of the first filtration module of the receiving terminal for digital television of Fig. 2;
Fig. 4 is the circuit structure diagram of embodiment of the second filtration module of the receiving terminal for digital television of Fig. 2;
Fig. 5 is the structural representation of the first embodiment of power supply adaptor of the present utility model;
Fig. 6 is the structural representation of the second embodiment of power supply adaptor of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, is the structural representation of the first embodiment of receiving terminal for digital television of the present utility model.Described receiving terminal for digital television 100 comprises: modulation /demodulation module 110, data processing module 120 and power transfer module 130.Described modulation /demodulation module 110, data processing module 120 and power transfer module 130 all are installed on the inside of described receiving terminal for digital television 100 housings.Data processing module 120 is electrically connected with modulation /demodulation module 110, and modulation /demodulation module 110 is electrically connected with a power line, and power transfer module 130 is connected respectively with modulation /demodulation module 110, data processing module 120, described power line.
Embodiment of the present utility model with the modulation /demodulation module integration in receiving terminal for digital television, the data processing module of modulation /demodulation module and receiving terminal for digital television is powered by power transfer module, saved hardware cost, can avoid simultaneously making because the Homeplug volume is excessive other socket can not the situation of use, made things convenient for the user.
Please refer to Fig. 2, is the structural representation of the second embodiment of receiving terminal for digital television of the present utility model.Described receiving terminal for digital television 100 comprises: modulation /demodulation module 110, data processing module 120, power transfer module 130, the first filtration module 140, the second filtration module 150.
Described modulation /demodulation module 110, data processing module 120 and power transfer module 130 all are installed on the inside of described receiving terminal for digital television 100 housings.Data processing module 120 is electrically connected with modulation /demodulation module 110, and modulation /demodulation module 110 is electrically connected with a power line, and power transfer module 130 is connected respectively with modulation /demodulation module 110, data processing module 120, described power line.
The first filtration module 140 is connected respectively with power transfer module 110, power line, is used for suppressing the switching noise of described power transfer module.The second filtration module 150 is connected respectively with modulation /demodulation module 130, power line, is used for the noise signal filtering beyond the power line carrier frequency range.
In the actual use procedure of IPTV system, set-top box and Homeplug often all are to be connected on the wiring board, and this just so that power transfer module is easy to the modulation demodulation module is caused interference, causes the unstable of signal transmission quality.Embodiment of the present utility model is integrated in modulation /demodulation module and power transfer module in the receiving terminal for digital television, so just can learn in advance the operating frequency of switching frequency and noise frequency and the modem module of power transfer module, so just can be by in the electric receiving terminal of numeral, adding the mode that filter circuit is used for suppressing switching frequency and noise frequency, and the operating frequency of adjusting modem module, allow its mode away from switching frequency and noise frequency, power transfer module is reduced to minimum to the interference of modulation demodulation module.
Embodiment of the present utility model with the modulation /demodulation module integration in receiving terminal for digital television, the data processing module of modulation /demodulation module and receiving terminal for digital television is powered by power transfer module, saved hardware cost, can avoid simultaneously making because the Homeplug volume is excessive other socket can not the situation of use, made things convenient for the user.
Please refer to Fig. 3, is the circuit structure diagram of the embodiment of the first filtration module among Fig. 2.
The first filtration module 140 comprises: be connected between the zero line and power transfer module 130 of power line after the first inductance L 1, the first resistance R 1, the second inductance L 2, the second resistance R 2, the first inductance L 1 and 1 parallel connection of the first resistance R; Be connected between the live wire and power transfer module 130 of power line after the second inductance L 2 and 2 parallel connections of the second resistance R.
The live wire of power line is after the filtering through the second inductance L 2, the second resistance R 2, and zero line is the power transfer module power supply after through the filtering of the firstth inductance L 1, the first resistance R 1.The first inductance L 1, the first resistance R 1, the second inductance L 2 and the second resistance R 2 in can the establishment power transfer module switching noise enter power line, disturb the carrier communication on the power line.
Please refer to Fig. 4, is the circuit structure diagram of the embodiment of the second filtration module among Fig. 2.
The second filtration module 150 comprises: transformer U1, capacitor C 1, the 3rd resistance R 3, be connected to after capacitor C 1 and the series connection of the 3rd resistance R 3 between the first input end of the live wire of power line and transformer U1, the second input of transformer U1 connects the zero line of power line, and the output of transformer connects modulation /demodulation module 110.
Coupling by transformer U1, capacitor C 1 and the 3rd resistance R 3 and filtering can be with the noise signal filterings beyond the power line carrier frequency range, thereby avoided the interference of these noise signals to the modulation demodulation module.
The utility model can be realized by following scheme at the receiving terminal for digital television described in Fig. 1 to Fig. 4:
The function of modulation /demodulation module 110 can be realized by DSS9501+DSS7800+KSZ8041.Wherein, DSS9501 is Spain DS2 company main control chip, mainly realizes the modulation /demodulation function; DSS7800 is the power line communication physical layer interface chip of Spain DS2 company, i.e. the interface chip of modulation /demodulation module and power line network; KSZ8041 is the adaptive physical layer network interface chip of the 10M/100M of MICREL company, i.e. the interface chip of modulation /demodulation module and power transfer module.
The function of power transfer module 130 is realized by DM0265+GM5794+GM5699.Wherein, DM0265 is the AC/DC of FAIRCHILD company conversion chip, is used for the alternating current of 220V is converted to the direct current of 12V; GM5699 and GM5794 are the DC/DC of GMT company chip, and GM5794 is used for the direct current of 12V is converted to the direct current of 5V, and GM5699 is used for the direct current of 5V is converted to the direct current of 3.3V and 1.5V.
The function of data processing module 120 can be realized by the IPTV set-top box master chip BCM7213 of Broadcom company.
The described receiving terminal for digital television of Fig. 1 to Fig. 4 can be set-top box, digital TV integrated machine etc.The below will continue to introduce the external power supply adaptor of a kind of receiving terminal for digital television.
Please refer to Fig. 5, is the structural representation of the first embodiment of power supply adaptor of the present utility model.
Modulation /demodulation module 210 is electrically connected with receiving terminal for digital television 300, and modulation /demodulation module 210 is electrically connected with a power line, and power transfer module 220 is connected respectively with modulation /demodulation module 210, receiving terminal for digital television 300, described power line.
Embodiment of the present utility model is with the inside of modulation /demodulation module integration to power supply adaptor, and the data processing module of modulation /demodulation module and receiving terminal for digital television is powered by power transfer module, has saved cost.
Please refer to Fig. 6, is the structural representation of the second embodiment of power supply adaptor of the present utility model.
The first filtration module 230 is connected respectively with power transfer module 220, power line, is used for suppressing the switching noise of power transfer module.The second filtration module 240 is connected respectively with modulation /demodulation module 210, power line, is used for the noise signal filtering beyond the power line carrier frequency range.
The circuit structure of the first filtration module 230 is identical with the first filtration module 140 shown in Figure 3, and the circuit structure of the second filtration module 240 is identical with the second filtration module 150 shown in Figure 4, and and therefore not to repeat here.
In the actual use procedure of IPTV system, set-top box and Homeplug often all are to be connected on the wiring board, and this just so that power transfer module is easy to the modulation demodulation module is caused interference, causes the unstable of signal transmission quality.Embodiment of the present utility model is integrated in modulation /demodulation module and power transfer module in the power supply adaptor, so just can learn in advance the operating frequency of switching frequency and noise frequency and the modem module of power transfer module, can be by in the electric receiving terminal of numeral, adding the mode that filter circuit is used for suppressing switching frequency and noise frequency, and the operating frequency of adjusting modem module, allow its mode away from switching frequency and noise frequency, power transfer module is reduced to minimum to the interference of modulation demodulation module.
Embodiment of the present utility model is with the inside of modulation /demodulation module integration to power supply adaptor, and the data processing module of modulation /demodulation module and receiving terminal for digital television is powered by power transfer module, has saved cost.
Above disclosed only is a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and according to the equivalent variations that the utility model claim is done, still belong to the scope that utility model contains.
Claims (8)
1. a receiving terminal for digital television is characterized in that, comprising:
The modulation /demodulation module, described modulation /demodulation module is electrically connected with a power line, and the data-signal on the described power line is carried out demodulation, and receives the uploading data from data processing module, and described uploading data is modulated on the described power line;
Described data processing module, described data processing module is electrically connected with described modulation /demodulation module, and the data of described data processing module after with described demodulation change into audio-video signal, and described audio-video signal are exported to display end play;
And power transfer module, described power transfer module is electrically connected respectively with described power line, described modulation /demodulation module and described data processing module, described power transfer module converts the alternating current on the described power line to direct current, and is transferred to respectively described data processing module and described modulation /demodulation module.
2. receiving terminal for digital television as claimed in claim 1, it is characterized in that, also comprise: for the first filtration module of the switching noise that suppresses described power transfer module, described the first filtration module comprises: the first inductance, the first resistance, the second inductance, the second resistance are connected between the zero line and described power transfer module of power line after described the first inductance and described the first resistance parallel connection; Be connected between the live wire and described power transfer module of power line after described the second inductance and described the second resistance parallel connection.
3. receiving terminal for digital television as claimed in claim 1, it is characterized in that, also comprise: be used for the second filtration module with the target signal filter beyond the described power line carrier frequency range, described the second filtration module comprises: transformer, electric capacity, the 3rd resistance, be connected to after the series connection of described electric capacity and described the 3rd resistance between the first input end of the live wire of power line and described transformer, the second input of described transformer connects the zero line of power line, and the output of described transformer connects described modulation /demodulation module.
4. receiving terminal for digital television as claimed in claim 1 is characterized in that, it is inner that described modulation /demodulation module is arranged at described receiving terminal for digital television.
5. one kind is used for the external power supply adaptor of receiving terminal for digital television, it is characterized in that, comprising:
The modulation /demodulation module, described modulation /demodulation module is electrically connected with a power line, data-signal on the described power line is carried out demodulation, and the data after the described demodulation are changed into audio-video signal send to described receiving terminal for digital television, and receive uploading data from described receiving terminal for digital television, and described uploading data is modulated on the described power line;
And power transfer module, described power transfer module is electrically connected respectively with described power line, described modulation /demodulation module and described receiving terminal for digital television, described power transfer module converts the alternating current on the described power line to direct current, and is transferred to respectively described receiving terminal for digital television and described modulation /demodulation module.
6. the power supply adaptor of stating such as claim 4, it is characterized in that, also comprise: for the first filtration module of the switching noise that suppresses described power transfer module, described the first filtration module comprises: the first inductance, the first resistance, the second inductance, the second resistance are connected between the zero line and described power transfer module of power line after described the first inductance and described the first resistance parallel connection; Be connected between the live wire and described power transfer module of power line after described the second inductance and described the second resistance parallel connection.
7. the power supply adaptor of stating such as claim 4, it is characterized in that, also comprise: be used for the second filtration module with the target signal filter beyond the described power line carrier frequency range, described the second filtration module comprises: transformer, electric capacity, the 3rd resistance, be connected to after the series connection of described electric capacity and described the 3rd resistance between the first input end of the live wire of power line and described transformer, the second input of described transformer connects the zero line of power line, and the output of described transformer connects described modulation /demodulation module.
8. the power supply adaptor of stating such as claim 4 is characterized in that, it is inner that described modulation /demodulation module is arranged at described power supply adaptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147843 CN202652431U (en) | 2012-04-10 | 2012-04-10 | Digital television receiving terminal and power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147843 CN202652431U (en) | 2012-04-10 | 2012-04-10 | Digital television receiving terminal and power adapter |
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| Publication Number | Publication Date |
|---|---|
| CN202652431U true CN202652431U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220147843 Expired - Fee Related CN202652431U (en) | 2012-04-10 | 2012-04-10 | Digital television receiving terminal and power adapter |
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| CN (1) | CN202652431U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681708A (en) * | 2016-03-07 | 2016-06-15 | 合一智能科技（深圳）有限公司 | Television system and control method therefor |
| CN108376538A (en) * | 2018-04-27 | 2018-08-07 | 京东方科技集团股份有限公司 | Connector and display device for display device |
| CN110691017A (en) * | 2018-11-14 | 2020-01-14 | 深圳维盟科技股份有限公司 | Multifunctional fusion system and application thereof |
-
2012
- 2012-04-10 CN CN 201220147843 patent/CN202652431U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681708A (en) * | 2016-03-07 | 2016-06-15 | 合一智能科技（深圳）有限公司 | Television system and control method therefor |
| CN105681708B (en) * | 2016-03-07 | 2019-04-23 | 合一智能科技（深圳）有限公司 | System for TV set and its control method |
| CN108376538A (en) * | 2018-04-27 | 2018-08-07 | 京东方科技集团股份有限公司 | Connector and display device for display device |
| CN108376538B (en) * | 2018-04-27 | 2020-05-29 | 京东方科技集团股份有限公司 | Connector for display device and display device |
| US11295698B2 (en) | 2018-04-27 | 2022-04-05 | Beijing Boe Display Technology Co., Ltd. | Connector for display device and display device |
| CN110691017A (en) * | 2018-11-14 | 2020-01-14 | 深圳维盟科技股份有限公司 | Multifunctional fusion system and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN SKYWORTH DIGITAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SKY-WORTH DIGITAL TECHNOLOGY CO., LTD.;SHENZHEN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road Building A14, SKYWORTH Patentee after: Shenzhen Skyworth Digital Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road Building A14, SKYWORTH Patentee before: Shenzhen Skyworth Digital Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200410 |