CN201995057U - Multipath digital television demodulator - Google Patents
Multipath digital television demodulator Download PDFInfo
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- CN201995057U CN201995057U CN2011200239141U CN201120023914U CN201995057U CN 201995057 U CN201995057 U CN 201995057U CN 2011200239141 U CN2011200239141 U CN 2011200239141U CN 201120023914 U CN201120023914 U CN 201120023914U CN 201995057 U CN201995057 U CN 201995057U
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- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011111 cardboard Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a multipath digital television demodulator, which comprises a power supply module, a control panel, a radio frequency input module, two motherboards and IC card boards connected with the motherboards, wherein the two motherboards include motherboard A and motherboard B, the control panel includes a parameter setting module and a state display module, the power supply module is respectively connected with the power supply input modules of the motherboard A and the motherboard B, and the radio frequency input module is respectively connected with the radio frequency signal distribution modules of the motherboard A and the motherboard B. The multipath digital television demodulator employs the plugging mode of matching a plurality of demodulator sub-boards with one motherboard, thereby making the demodulator flexible in path number choice, good in integrity and convenient in debugging and maintenance, thus the multipath digital television demodulator is more suitable for practical manufacture and convenient for a maintenance man to carry out debugging and maintenance.
Description
Technical field
The utility model relates to a kind of television demodulator, relates in particular to a kind of multi-path digital television demodulator.
Background technology
Existing multi-path digital television demodulator is gone up by society at present, but its version all adopts many plates or whole plate mode.Many plates mode is meant the corresponding printed board of every way word television demodulator, and the control data line connects with winding displacement, and every printed board all is contained on the base plate of cabinet, the advantage of this mode is that the demodulator way is selected flexibly, debugging, maintenance are more convenient, but it is many to connect winding displacement, and globality is poor.Whole plate mode is meant puts the digital TV demodulator circuits that overlap more in the printed board, its advantage is that the connection winding displacement is few, good integrity, but receive the way poor selectivity, debugging, maintenance inconvenience.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of multi-path digital television demodulator.
To achieve these goals, the technical solution adopted in the utility model is: a kind of multi-path digital television demodulator, comprise the IC-card plate that power module, control panel, radio frequency input module, motherboard link to each other with motherboard, described motherboard is two, be respectively motherboard A and motherboard B, described control panel comprises that parameter is provided with module and state display module, described power module links to each other with the Power Entry Module of motherboard B with motherboard A respectively, and described radio frequency input module links to each other with the radiofrequency signal distribution module of motherboard A and motherboard B respectively.
As preferably, described motherboard A comprises demodulation module, audio frequency and video output module A and radiofrequency signal distribution module A, described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module A, and the output of described demodulation module links to each other with audio frequency and video output module A.
As preferably, described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate A, demodulator to divide plate B, demodulator to divide plate C, demodulator to divide plate D, the output that described demodulator divides plate A and demodulator to divide plate B links to each other with IC-card socket A, and the output that described demodulator divides plate C and demodulator to divide plate D links to each other with IC-card socket B.
As preferably, described motherboard B comprises demodulation module, audio frequency and video output module B and radiofrequency signal distribution module B, described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module B, and the output of described demodulation module links to each other with audio frequency and video output module B.
As preferably, described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate E, demodulator to divide plate F, demodulator to divide plate G, demodulator to divide plate H, the output that described demodulator divides plate E and demodulator to divide plate F links to each other with IC-card socket C, and the output that described demodulator divides plate G and demodulator to divide plate H links to each other with IC-card socket D.
As preferably, the output of described radiofrequency signal distribution module A links to each other with the input of radiofrequency signal distribution module B.
Compared with prior art, advantage of the present utility model is: adopt a plurality of demodulators to divide pluggable mode between plate and motherboard, make the demodulator way select flexibly, and good integrity, debugging, maintenance are more convenient.More be adapted to actual production, the convenient for maintaining personnel debug and keep in repair.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a motherboard A structural representation of the present utility model;
Fig. 3 is a motherboard B structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As a kind of execution mode of the present utility model, consult Fig. 1, Fig. 2 and Fig. 3, the utility model comprises the IC-card plate that power module, control panel, radio frequency input module, motherboard link to each other with motherboard, described IC-card plate and motherboard are connected to the digital television signal deciphering.Wherein motherboard is two, be respectively motherboard A and motherboard B, described control panel comprises that parameter is provided with module and state display module, described power module links to each other with the Power Entry Module of motherboard B with motherboard A respectively, and described radio frequency input module links to each other with the radiofrequency signal distribution module of motherboard A and motherboard B respectively.
Motherboard A comprises demodulation module, audio frequency and video output module A and radiofrequency signal distribution module A, and described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module A, and the output of described demodulation module links to each other with audio frequency and video output module A.Described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate A, demodulator to divide plate B, demodulator to divide plate C, demodulator to divide plate D, the output that described demodulator divides plate A and demodulator to divide plate B links to each other with IC-card socket A, and the output that described demodulator divides plate C and demodulator to divide plate D links to each other with IC-card socket B.
Motherboard B comprises demodulation module, audio frequency and video output module B and radiofrequency signal distribution module B, and described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module B, and the output of described demodulation module links to each other with audio frequency and video output module B.Described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate E, demodulator to divide plate F, demodulator to divide plate G, demodulator to divide plate H, the output that described demodulator divides plate E and demodulator to divide plate F links to each other with IC-card socket C, and the output that described demodulator divides plate G and demodulator to divide plate H links to each other with IC-card socket D.The output of described radiofrequency signal distribution module A links to each other with the input of radiofrequency signal distribution module B.
Demodulator divides plate A, demodulator to divide plate B, demodulator to divide plate C, demodulator to divide plate D and demodulator to divide plate E, demodulator to divide plate F, demodulator to divide plate G, demodulator to divide plate H to be inserted in respectively on motherboard A and the motherboard B.Above-mentioned demodulator divides plate and motherboard to be connected to reception DVB-C digital television signal output audio-video signal.
The 51-862MHz radiofrequency signal is input to the X1 port of motherboard A and motherboard B from the radio frequency input module, the radio frequency distributor circuit of forming by devices such as T1, T2, T3, T4 is divided into eight road signals and sends into the tuner that demodulation divides plate respectively, tuner receives and is down-converted to intermediate frequency 36MHz after the radiofrequency signal and is sent to demodulation chip demodulation output TS digital signal, enter again master chip decoding and IC-card deciphering output analog audio-video signal to after the bnc interface of plate.Every digital TV demodulation divides the control of plate, video data to deliver to control panel through plug, socket, motherboard and the winding displacement of 2.54 spacings.Receiving every demodulation of head control by button on the control panel and remote control divides the mode of operation of plate to show its operating state by charactron and LED lamp simultaneously.By three outside exhausting of DC power supply blower fan with the more stable work that reduces built-in temperature and make demodulator, reliable.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation in not breaking away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be limited to these embodiment shown in this article, but will accord with principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. multi-path digital television demodulator, comprise the IC-card plate that power module, control panel, radio frequency input module, motherboard link to each other with motherboard, it is characterized in that: described motherboard is two, be respectively motherboard A and motherboard B, described control panel comprises that parameter is provided with module and state display module, described power module links to each other with the Power Entry Module of motherboard B with motherboard A respectively, and described radio frequency input module links to each other with the radiofrequency signal distribution module of motherboard A and motherboard B respectively.
2. multi-path digital television demodulator according to claim 1, it is characterized in that: described motherboard A comprises demodulation module, audio frequency and video output module A and radiofrequency signal distribution module A, described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module A, and the output of described demodulation module links to each other with audio frequency and video output module A.
3. multi-path digital television demodulator according to claim 2, it is characterized in that: described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate A, demodulator to divide plate B, demodulator to divide plate C, demodulator to divide plate D, the output that described demodulator divides plate A and demodulator to divide plate B links to each other with IC-card socket A, and the output that described demodulator divides plate C and demodulator to divide plate D links to each other with IC-card socket B.
4. multi-path digital television demodulator according to claim 1, it is characterized in that: described motherboard B comprises demodulation module, audio frequency and video output module B and radiofrequency signal distribution module B, described radio frequency input module links to each other with demodulation module through radiofrequency signal distribution module B, and the output of described demodulation module links to each other with audio frequency and video output module B.
5. multi-path digital television demodulator according to claim 4, it is characterized in that: described demodulation module comprises that several demodulators divide plate, being respectively demodulator divides plate E, demodulator to divide plate F, demodulator to divide plate G, demodulator to divide plate H, the output that described demodulator divides plate E and demodulator to divide plate F links to each other with IC-card socket C, and the output that described demodulator divides plate G and demodulator to divide plate H links to each other with IC-card socket D.
6. according to claim 2 or 4 described multi-path digital television demodulators, it is characterized in that: the output of described radiofrequency signal distribution module A links to each other with the input of radiofrequency signal distribution module B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200239141U CN201995057U (en) | 2011-01-25 | 2011-01-25 | Multipath digital television demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200239141U CN201995057U (en) | 2011-01-25 | 2011-01-25 | Multipath digital television demodulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201995057U true CN201995057U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200239141U Expired - Fee Related CN201995057U (en) | 2011-01-25 | 2011-01-25 | Multipath digital television demodulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201995057U (en) |
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2011
- 2011-01-25 CN CN2011200239141U patent/CN201995057U/en not_active Expired - Fee Related
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 12 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610000 Patentee after: Sichuan Smart Dragon S & T Co., Ltd. Address before: No. 12 high tech Zone Gaopeng road in Chengdu city of Sichuan Province in 610000 Patentee before: Sichuan Smart Dragong S & T Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multipath digital television demodulator Effective date of registration: 20140626 Granted publication date: 20110928 Pledgee: Chengdu high investment financing Company limited by guarantee Pledgor: Sichuan Smart Dragon S & T Co., Ltd. Registration number: 2014510000018 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171222 Granted publication date: 20110928 Pledgee: Chengdu high investment financing Company limited by guarantee Pledgor: Sichuan Smart Dragon S & T Co., Ltd. Registration number: 2014510000018 |
|
| 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: 20110928 Termination date: 20170125 |