CN206894816U - A kind of set-top box television chip circuit mainboard and set top box - Google Patents
A kind of set-top box television chip circuit mainboard and set top box Download PDFInfo
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- CN206894816U CN206894816U CN201720747970.7U CN201720747970U CN206894816U CN 206894816 U CN206894816 U CN 206894816U CN 201720747970 U CN201720747970 U CN 201720747970U CN 206894816 U CN206894816 U CN 206894816U
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Abstract
The utility model discloses a kind of set-top box television chip circuit mainboard and set top box, its circuit main board includes：Master chip, power splitter unit, positioning chip, demodulator and tuner, wherein：The positioning chip and the tuner are connected with by signal end with the power splitter unit of work(point for satellite TV signal and positioning satellite signal information to be combined；The tuner is connected with the demodulator and the power splitter unit by signal end；The demodulator is connected with the tuner and the master chip by signal end；The positioning chip connects the power splitter unit and the master chip by signal end；The positioning chip is closed and is enclosed in set-top box television chip circuit mainboard.In embodiment of the present utility model, positioning chip is closed into envelope in circuit, whole region positional precision is more accurate, so as to facilitate Broadcast and TV system for different zones to provide different high-definition-television signal and charged according to television content difference and service strategy it is executable.
Description
Technical field
It the utility model is related to digital TV technology, and in particular to a kind of set top box.
Background technology
With the fast development of information technology, people's life comes into digitlization, information age, radio and television numeral
Change personalization process accelerating to be laid out.Major part place in China's has been realized in the translation of DTV, but high definition electricity at present
Translation depending on program is also present because the differences such as economic development, geographical position, town and country are without all popularizations.At present, it is domestic except
Metropolitan area can be used outside high-definition television program, and many remote mountain areas can't preferably realize that the rating of high-definition program is broadcast
Put.
It is different with the expenses standard of grass roots in city, then because the operation cost of high-definition-television signal is different
Solve different zones using when collect different service fees, how to be accurately positioned is hard requirement.Solving this problem
In, it is necessary to which substantial amounts of individual chips are combined into set top box solution, then cost is higher.Fig. 1 shows that existing set top box is hard
Part structure principle chart, i.e., on the basis of existing set-top box scenario, in independent HDTV chip circuit plus independent fixed
The combination of position chip, you can used with realizing to be accurately positioned machine and put in place, realize the meridian tyre in town and country, this machine
Positioning chip in top box scheme independently of TV chip mainboard outside.For example it is to operate to be in intelligent television that latest generation leads in every family
Unite on the basis of TVOS2.0 SOS software versions, with reference to based on orientation management technology, be with Data Collection and analysis
The fusion of system DCAS related software modules, the positioning pipe of safe and reliable terminal system is realized in a manner of hardware and software combines
Reason.
Due to being existed in a manner of modularization cooperates between independent HDTV chip circuit and location-independent chip
In set top box, for this location-independent chip when design, it can be used as a locating module and TV master chip
Communicated, its mutual communication is realized using related communication protocol, whole locating module easily from set top box solely
Vertical dismounting is installed, and the data acquisition of location-independent chip is realized by orientation management technology, this positioning chip
True location information can also at will be obtained when being located away from set top box by the data-interface between location-independent chip and set top box
Take, while be also easy to give virtual location information the operating system of terminal, deception TVOS2.0 operating systems make it corresponding
Safety inspection and inspection pass through judgement.It will so cause：Without real location information, you can make the safety inspection of terminal system
Survey normally, so as to bring any location information for allowing hacker easily to crack machine, further allow set-top box device not by any
Local uses limitation；The real set-top box device of server None- identified of Broadcast and TV system uses local, is carried for different locals
Charge and service different strategies for different high-definition-television signals and according to television content difference and will be unable to perform；
On the basis of this, to solve truly to be accurately positioned, it is necessary to increase positioning chip, and can not be at will exposed outside by positioning chip
(i.e. real location information can easily be obtained and can changed easily) is, it is necessary to satellite fix radio frequency chip, base band corresponding to considering
Chip, how to solve these chips and envelope design is coordinated and closed to tuner, demodulator, master chip how, be to need to overcome
Technical problem.
Existing this positioning chip can be independently present in the form of standalone module outside set-top box television chip circuit, and
One is not formed with television chip circuit and closes the entirety shut, and to ensure positioning chip energy normal work, it is necessary on machine top
Material corresponding to setting power supply, clock, interface signal supporting on box etc., and one independent local of setting on set top box plate
These materials are being placed to coordinate the installation of positioning chip, are causing that overall set top box production board is excessive, and overall material is excessive
The problems such as.
Utility model content
The purpose of this utility model is, for it is above-mentioned the problem of, there is provided a kind of set-top box television chip circuit mainboard and
Set top box, it by positioning chip sealing in the master chip circuit where set-top-box chip, can examine the security of terminal system
The location information measured is real set top box positional information.
In order to realize the purpose of this utility model, the utility model provides a kind of set-top box television chip circuit mainboard, bag
Include：Master chip, power splitter unit, positioning chip, demodulator and tuner, wherein：
Pass through letter with the power splitter unit of work(point for satellite TV signal and positioning satellite signal information to be combined
Number end is connected with the positioning chip and the tuner；
The tuner is connected with the demodulator and the power splitter unit by signal end；
The demodulator is connected with the tuner and the master chip by signal end；
The positioning chip connects the power splitter unit and the master chip by signal end；
The positioning chip is closed and is enclosed in set-top box television chip circuit mainboard.
The positioning chip is radio frequency baseband integration positioning chip, or is radio frequency single-chip.
The positioning chip closes with the master chip to be enclosed on a positioning conjunction envelope unit.
The positioning chip closes with the tuner to be enclosed on a radio frequency conjunction envelope unit.
The set-top box television chip circuit mainboard also includes a condition processing module, the condition processing module with it is described
Master chip signal connects, the condition processing module and the master chip close be enclosed in together with.
Connected between the positioning chip and the master chip using signal wire or signal circuit.
The set-top box television chip circuit mainboard also includes：Memory cell, the memory cell and the master chip it
Between signal connect；And/or
Network controller, signal connects between the network controller and the master chip；And/or
Audio and video output interface, signal connects between the audio and video output interface and the master chip；And/or
Command input interface, signal connects between the command input interface and the master chip；And/or
Communication interface, signal connects between the communication interface and the master chip.
The audio and video output interface is the one or more in CVBS, HDMI, YPbPr, VGA, S-Video, SPDIF
Combination.
The memory cell be random access memory ram, flash memory FLASH or one kind in storage device interface or
Person's multiple combinations.
Accordingly, present invention also offers a kind of set top box, including the set top box as described in any one of claim 1 to 9
Television chip circuit mainboard, the set-top box television chip circuit mainboard are fixed on inside set top box.
Compared with prior art, the beneficial effects of the utility model are：On set top box main chip circuit board, it will position
Chip closes envelope in circuit, and positioning chip is designed into an entirety with set top box main chip and dispatched from the factory, compared to more independent Cheng Mo
The positioning chip module of block installation, it will not cause because of change in location caused by the disassembled access of module position, this conjunction envelope
Positioning chip is shut on mainboard, and set top box position information will not be caused error to be present, and whole region positional precision is more accurate
Really, so as to facilitate Broadcast and TV system for different zones provide different high-definition-television signal and according to television content difference and
Charge is executable with service strategy.It is arranged on for existing individual chips outside master chip, here by positioning chip and main core
Piece carries out conjunction envelope, it is possible to reduce the caused material of individual chips installation and region are reduced, such as some general power supply, interfaces
Material can share with mainboard chip corresponding to signal etc., independent without one on set-top box television chip circuit mainboard plate
Local is laid out independent positioning chip module, on the whole can save chip circuit board layout requirements, reduce it is independent
Material caused by chip coordinates, and has simplified Material Cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is existing function top-set hardware schematic diagram to be positioned；
Fig. 2 is the utility model set-top box circuitry schematic diagram；
Fig. 3 is the structural representation that envelope set top box is closed in the utility model positioning；
Fig. 4 is that the utility model radio frequency closes envelope set up box structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.
Accordingly, Fig. 2 shows the utility model set-top box circuitry schematic diagram, the set-top box television chip circuit mainboard,
Including：Master chip, power splitter unit, positioning chip, demodulator and tuner, wherein：For by satellite TV signal and positioning
Satellite signal information is combined is connected with the positioning chip and the tuning with the power splitter unit of work(point by signal end
Device；The tuner is connected with the demodulator and the power splitter unit by signal end；The demodulator is connected by signal end
There are the tuner and the master chip；The positioning chip connects the power splitter unit and the master chip by signal end；
The positioning chip is closed and is enclosed in set-top box television chip circuit mainboard.
In specific implementation process, connected between positioning chip and master chip using signal wire or signal circuit, so as to subtract
Few various material interfaces, the positioning chip can be radio frequency baseband integration positioning chip or radio frequency single-chip, and this is fixed
Position chip can be enclosed in master chip conjunction on a positioning conjunction envelope unit, can also be closed with tuner and be enclosed in a radio frequency conjunction envelope list
In member.The positioning chip, which can close, to be enclosed in set-top box television chip circuit mainboard, and this conjunction envelope can avoid positioning chip from making
Remove and install for independent module, can be shut in the circuit board where master chip dispatching from the factory, it is precisely fixed so as to play
The positional information of position set top box.
Accordingly, Fig. 3 shows that the structural representation of envelope set top box is closed in the utility model positioning, and envelope set top box is closed in the positioning
It can realize that high-definition-television signal be able to can receive in city, rural area, and can, which is realized to be accurately positioned, distinguishes city, rural area ground
The exact position in area, so as to realize the Differentiated Services individual demand different with charge.The multifunctional set top box, it can be realized
High-definition-television signal in the use of different zones, precisely realize according to the personalized services of different zones by and can, have function it is strong,
Easy to use, the advantages that cost is relatively low
Set top box main chip 1 (i.e. master chip), whole set top box core processing component, and various device connection communications,
And carry out main computing；
Demodulator 2, distinguish two-way communication with set top box main chip 1 and tuner 3, ground digital to intermediate frequency form, have
Three kinds of TV signals of line digital and analog signaling are amplified, A/D conversions and demodulation, ground digital to intermediate frequency form and wired
TS signals are exported after digital television signal amplification, A/D conversions and demodulation, the anolog TV signals of intermediate frequency form are amplified,
A/D is changed and is exported vision signal and audio signal by BT656 buses and IIS buses respectively after demodulating；
Tuner 3, three kinds of ground digital, cabled digital and analog signal TV signals of radio frequency form are received, by radio frequency
Signal down-converts to intermediate-freuqncy signal；
Network controller 4, it is connected respectively with set top box main chip 1 and network interface 5；Network interface 5 and Internet
Network connects, and completes IPTV data transmit-receives；
Positioning chip 13, the position signalling that satellite positioning information is resolved after analysis is exported to set top box main chip 1, with machine
The one-way communication of top box master chip 1, positioning chip 13 here can be radio frequency baseband integration positioning chip, or radio frequency
Single-chip；
Power splitter unit 14, satellite TV signal and positioning satellite signal information are combined and divided with work(, respectively by electricity
Tuner 3 is sent to depending on signal, positioning signal is sent to positioning chip 13 (i.e. positioning radio frequency chip or radio frequency baseband integration
Positioning chip)；
Memory cell, memory cell and the two-way communication of set top box main chip 1；
Command input interface 9, information is inputted for receiving；
Communication interface 10, is connected with TV module, is controlled the transmission of information and status information；
Condition processing module 11, it is with set top box main chip two-way communication；
Audio and video output interface 12, for exports audio signal and vision signal.
It should be noted that network interface 5 here is RJ45 network interfaces.
In specific implementation process, memory cell includes：Random access memory ram 6, flash memory FLASH7 and storage device connect
Mouth 8 etc., wherein：
RAM6, for providing program operation and data spatial cache, one kind in SDRAM and DDR SDRAM can be included
Or the two combinations；
FLASH7, for routine data and application data store, one in NOR FLASH and NAND FLASH can be included
Kind or the two combinations；
Storage device interface 8, one kind in USB interface, SD/MMC card interfaces, ide interface and SATA interface can be included
Or these combination.
The command input interface 9 includes one kind or combination in infrared receiving set and front panel.
The condition processing module 11 includes intelligent card interface and without one kind in card CA safety chips or combination.
The audio and video output interface 12 includes a kind of or more in CVBS, HDMI, YPbPr, VGA, S-Video, SPDIF
Kind combination.
The communication interface is RS232 interface 10.
HDMI in the audio and video output interface 12 is connected with TV module, carries out audio, video data, control letter
The transmission of breath and status information.
The set top box can be connected by network controller and RJ45 network interfaces with Internet network so that set top box has
Two-way function, it is possible to achieve the two-way function such as video request program, online game, information browse, shopping online, in addition, this set top box
Can also realize MPEG4, H.264, the standard network streaming media playing such as AVS, VC-1, realize IPTV functions.
In circuit theory diagrams involved by Fig. 3, further relate to a positioning and close envelope unit 0, the positioning closes envelope unit 0 by condition
Module 11, positioning chip 13 (positioning radio frequency chip or radio frequency baseband integration positioning chip) conjunction envelope together with master chip 1 are managed,
So as to carry out position positioning calculation processing and special services processing.
Set top box with this chip functions can realize that high-definition-television signal can be accurate in the use of different zones, and can
The different personalized services of offer according to different zones are provided, and can prevent low side expense occur and enjoy the feelings of high-end business
Condition.More preferably, set top box main and TV SKD can also be accomplished on one piece of circuit board, set top box main chip and television set
Connected between processor chips using HDMI with RS232 interface.Except using RS232 between such set top box and TV module
Interface connection realized outside the transmission of control information and status information, can also be realized using HDMI set top box and TV module it
Between control information and status information transmission.
Accordingly, Fig. 4 shows that the utility model radio frequency closes envelope set up box structure schematic diagram, and the set top box includes：
Set top box main chip 1 (i.e. master chip), whole set top box core processing component, and various device connection communications,
And carry out main computing；
Demodulator 2, distinguish two-way communication with set top box main chip 1 and tuner 3, ground digital to intermediate frequency form, have
Three kinds of TV signals of line digital and analog signaling are amplified, A/D conversions and demodulation, ground digital to intermediate frequency form and wired
TS signals are exported after digital television signal amplification, A/D conversions and demodulation, the anolog TV signals of intermediate frequency form are amplified,
A/D is changed and is exported vision signal and audio signal by BT656 buses and IIS buses respectively after demodulating；
Tuner 3, three kinds of ground digital, cabled digital and analog signal TV signals of radio frequency form are received, by radio frequency
Signal down-converts to intermediate-freuqncy signal；
Network controller 4, it is connected respectively with set top box main chip 1 and network interface 5；Network interface 5 and Internet
Network connects, and completes IPTV data transmit-receives；
Positioning chip 13, the position signalling that satellite positioning information is resolved after analysis is exported to set top box main chip 1, with machine
The one-way communication of top box master chip 1, positioning chip 13 here is radio frequency baseband integration positioning chip；
Power splitter unit 14, satellite TV signal and positioning satellite signal information are combined and divided with work(, respectively by electricity
Tuner 3 is sent to depending on signal, positioning signal is sent to positioning chip 13 (i.e. radio frequency baseband integration positioning chip)；
Memory cell, memory cell and the two-way communication of set top box main chip 1；
Command input interface 9, information is inputted for receiving；
Communication interface 10, is connected with TV module, is controlled the transmission of information and status information；
Condition processing module 11, it is with set top box main chip two-way communication；
Audio and video output interface 12, for exports audio signal and vision signal.
It should be noted that network interface 5 here is RJ45 network interfaces.
In specific implementation process, memory cell includes：Random access memory ram 6, flash memory FLASH7 and storage device connect
Mouth 8 etc., wherein：
RAM6, for providing program operation and data spatial cache, one kind in SDRAM and DDR SDRAM can be included
Or the two combinations；
FLASH7, for routine data and application data store, one in NOR FLASH and NAND FLASH can be included
Kind or the two combinations；
Storage device interface 8, one kind in USB interface, SD/MMC card interfaces, ide interface and SATA interface can be included
Or these combination.
The command input interface 9 includes one kind or combination in infrared receiving set and front panel.
The condition processing module 11 includes intelligent card interface and without one kind in card CA safety chips or combination.
The audio and video output interface 12 includes a kind of or more in CVBS, HDMI, YPbPr, VGA, S-Video, SPDIF
Kind combination.
The communication interface is RS232 interface 10.
HDMI in the audio and video output interface 12 is connected with TV module, carries out audio, video data, control letter
The transmission of breath and status information.
The set top box can be connected by network controller and RJ45 network interfaces with Internet network so that set top box has
Two-way function, it is possible to achieve the two-way function such as video request program, online game, information browse, shopping online, in addition, this set top box
Can also realize MPEG4, H.264, the standard network streaming media playing such as AVS, VC-1, realize IPTV functions.
In circuit theory diagrams involved by Fig. 4, further relate to conjunction envelope unit 0 and radio frequency closes envelope unit 15, wherein：
Conjunction envelope unit 0 closes condition processing module 11 envelope together with master chip 1, so as to carry out position positioning calculation
Processing and special services processing；
The radio frequency closes envelope unit 15 and (tuner 2 and positioning chip 13 is positioned into radio frequency chip or radio frequency baseband integration
Positioning chip) envelope is closed together, the TV signal and positioning signal after the power splitter work(point that enters to pass through are handled respectively.
To sum up, on set top box main chip circuit board, positioning chip is closed into envelope in circuit, by positioning chip and set top box
Master chip is designed to an entirety and dispatches from the factory, will not be because of module position compared to more individually into the positioning chip module of module installation
Change in location caused by disassembled access is put, this conjunction envelope causes positioning chip to be shut on mainboard, will not cause set top box
There is error in position information, whole region positional precision is more accurate, so as to facilitate Broadcast and TV system to be provided for different zones
Different high-definition-television signal and charged according to television content difference and service strategy it is executable.For existing independence
Chip is arranged on outside master chip, and positioning chip and master chip are carried out into conjunction envelope here, it is possible to reduce individual chips installation is drawn
The material risen and region are reduced, for example material can share with mainboard chip corresponding to some general power supply, interface signals etc.,
Independent positioning chip module is laid out without an independent local on set-top box television chip circuit mainboard plate, from entirety
On can save chip circuit board layout requirements, reduce individual chips caused by material coordinate, simplified Material Cost.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：Read-only storage (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
The set-top box television chip circuit mainboard and set top box provided above the utility model embodiment has been carried out in detail
Thin to introduce, specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand method and its core concept of the present utility model；Meanwhile for the general technology of this area
Personnel, according to thought of the present utility model, there will be changes in specific embodiments and applications, in summary,
This specification content should not be construed as to limitation of the present utility model.
Claims (10)
- A kind of 1. set-top box television chip circuit mainboard, it is characterised in that including：Master chip, power splitter unit, positioning chip, Demodulator and tuner, wherein：Pass through signal end with the power splitter unit of work(point for satellite TV signal and positioning satellite signal information to be combined It is connected with the positioning chip and the tuner；The tuner is connected with the demodulator and the power splitter unit by signal end；The demodulator is connected with the tuner and the master chip by signal end；The positioning chip connects the power splitter unit and the master chip by signal end；The positioning chip is closed and is enclosed in set-top box television chip circuit mainboard.
- 2. set-top box television chip circuit mainboard as claimed in claim 1, it is characterised in that the positioning chip is radio frequency base With integrated positioning chip, or it is radio frequency single-chip.
- 3. set-top box television chip circuit mainboard as claimed in claim 1, it is characterised in that the positioning chip and the master Chip, which closes, to be enclosed on a positioning conjunction envelope unit.
- 4. set-top box television chip circuit mainboard as claimed in claim 1, it is characterised in that the positioning chip and the tune Humorous device, which closes, to be enclosed on a radio frequency conjunction envelope unit.
- 5. the set-top box television chip circuit mainboard as described in any one of Claims 1-4, it is characterised in that the set top box Television chip circuit mainboard also includes a condition processing module, and the condition processing module is connected with the master chip signal, institute State together with condition processing module and the master chip close and be enclosed in.
- 6. set-top box television chip circuit mainboard as claimed in claim 5, it is characterised in that the positioning chip and the master Connected between chip using signal wire or signal circuit.
- 7. set-top box television chip circuit mainboard as claimed in claim 5, it is characterised in that the set-top box television chip electricity Road mainboard also includes：Memory cell, signal connects between the memory cell and the master chip；And/orNetwork controller, signal connects between the network controller and the master chip；And/orAudio and video output interface, signal connects between the audio and video output interface and the master chip；And/orCommand input interface, signal connects between the command input interface and the master chip；And/orCommunication interface, signal connects between the communication interface and the master chip.
- 8. set-top box television chip circuit mainboard as claimed in claim 7, it is characterised in that the audio and video output interface is One or more kinds of combinations in CVBS, HDMI, YPbPr, VGA, S-Video, SPDIF.
- 9. set-top box television chip circuit mainboard as claimed in claim 7, it is characterised in that the memory cell is to deposit at random One or more kinds of combinations in access to memory RAM, flash memory FLASH or storage device interface.
- 10. a kind of set top box, it is characterised in that including the set-top box television chip circuit as described in any one of claim 1 to 9 Mainboard, the set-top box television chip circuit mainboard are fixed on inside set top box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747970.7U CN206894816U (en) | 2017-06-23 | 2017-06-23 | A kind of set-top box television chip circuit mainboard and set top box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747970.7U CN206894816U (en) | 2017-06-23 | 2017-06-23 | A kind of set-top box television chip circuit mainboard and set top box |
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| Publication Number | Publication Date |
|---|---|
| CN206894816U true CN206894816U (en) | 2018-01-16 |
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ID=61317074
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| CN201720747970.7U Active CN206894816U (en) | 2017-06-23 | 2017-06-23 | A kind of set-top box television chip circuit mainboard and set top box |
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| Country | Link |
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- 2017-06-23 CN CN201720747970.7U patent/CN206894816U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: STB TV chip circuit board and STB Effective date of registration: 20191212 Granted publication date: 20180116 Pledgee: China Co truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS CO.LTD Registration number: Y2019440000274 |
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| 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: 20210104 Granted publication date: 20180116 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2019440000274 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A set top box TV chip circuit board and set top box Effective date of registration: 20210107 Granted publication date: 20180116 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2021440000004 |
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| 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: 20220310 Granted publication date: 20180116 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2021440000004 |