CN203708369U - Control circuit shared by MHL interface and HDMI interface, and display device - Google Patents
Control circuit shared by MHL interface and HDMI interface, and display device Download PDFInfo
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- CN203708369U CN203708369U CN201320817403.6U CN201320817403U CN203708369U CN 203708369 U CN203708369 U CN 203708369U CN 201320817403 U CN201320817403 U CN 201320817403U CN 203708369 U CN203708369 U CN 203708369U
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Abstract
The utility model discloses a control circuit shared by an MHL interface and an HDMI interface, and a display device equipped with the control circuit. The control circuit comprises a first switch module, a second switch module, and a first resistor. The control end of the first switch module is connected with a TMDS data shielding pin of the HDMI interface. The input and output ends of the first switch module are respectively connected with the positive output electrode of a first preset power supply and a 5V power transmission pin of the HDMI interface. The control end of the second switch module is connected with the TMDS data shielding pin. The output and input ends of the second switch module are respectively connected with the 5V power transmission pin and one end of the first resistor. The other end of the first resistor is connected with a hot-plugging detection pin of the HDMI interface. According to the utility model, the sharing of the control circuit by the MHL interface and the HDMI interface is achieved, and the cost of a television set is reduced.
Description
Technical field
The utility model relates to technical field of electronic products, particularly a kind of MHL interface and HDMI interface common control circuit and display unit.
Background technology
As everyone knows, the coffret of existing HD video data comprises MHL interface and HDMI interface, but the circuit of these two kinds of interfaces and pin are all inconsistent.Wherein, the HDMI interface (can be interpreted as intuitively the interface on HDMI socket) on TV comprises that TMDS data mask pin, 5V power delivery pin (when access HDMI equipment, this pin is equivalent to access 5V voltage) and hot plug detect pin etc.; MHL interface comprises that 5V power delivery pin (different from the 5V power delivery pin of HDMI interface, when access MHL equipment, this pin is equivalent to export 5V voltage, is the power supply of MHL equipment) and plug detect pin etc.In order to meet the transmission of MHL data and HDMI data simultaneously, prior art need to design MHL interface and HDMI interface and corresponding interface circuit on television set, thereby the cost of television set is increased.
Utility model content
Main purpose of the present utility model is to provide a kind of MHL interface and HDMI interface common control circuit, is intended to realize original HDMI interface is used as to MHL interface simultaneously, realizes MHL interface and HDMI interface and shares, and reduces the cost of television set.
To achieve these goals, the utility model provides a kind of MHL interface and HDMI interface common control circuit, and described MHL interface and HDMI interface common control circuit comprise the first switch module, second switch module, the first resistance; The control end of described the first switch module is connected with the TMDS data mask pin of described HDMI interface, the plug that described TMDS data mask pin is MHL interface detects pin, described the first switch module input is connected with the positive output end of the first preset power supply and the 5V power delivery pin of HDMI interface respectively with output, and described the first switch module is according to the connection status of the positive output end of the first preset power supply described in the level state control of described TMDS data mask pin and 5V power delivery pin; The control end of described second switch module is connected with described TMDS data mask pin, output is connected with one end of described 5V power delivery pin and described the first resistance respectively with input, and described second switch module is according to the connection status of 5V power delivery pin described in the level state control of described TMDS data mask pin and described the first resistance; The other end of described the first resistance detects pin with the hot plug of described HDMI interface and is connected.
Preferably, described MHL interface and HDMI interface common control circuit also comprise the second resistance, and described the second resistance is serially connected with between the points of common connection and described TMDS data mask pin of the control end of described the first switch module and the control end of described second switch module.
Preferably, described the first switch module comprises field effect transistor integrated circuit and the 3rd resistance, the input of described field effect integrated circuit is connected with the positive output end of described the first preset power supply, output is connected with described 5V power delivery pin, control end is connected with described TMDS data mask pin, earth terminal grounding connection; One end of described the 3rd resistance is connected with the control end of described field effect transistor integrated circuit, other end ground connection; And in the time that TMDS data mask pin is high level, the input of described field effect transistor integrated circuit and output conducting, in the time that TMDS data mask pin is low level, the input of described field effect transistor integrated circuit and output cut-off.
Preferably; in described field effect transistor integrated circuit, be provided with current foldback circuit; described current foldback circuit detects the electric current of the input of described field effect transistor integrated circuit, and according to the input of field effect transistor integrated circuit and the conducting of output and cut-off described in described detected size of current control.
Preferably, described MHL interface and HDMI interface common control circuit also comprise the first electric capacity and the second electric capacity, and the positive pole of described the first electric capacity is connected with the output of described field effect transistor integrated circuit, minus earth; Described the second Capacitance parallel connection is at the two ends of described the first electric capacity.
Preferably, described MHL interface and HDMI interface common control circuit also comprise the 3rd electric capacity, and one end of described the 3rd electric capacity is connected with the input of described field effect transistor integrated circuit, other end ground connection.
Preferably, described second switch module comprises electronic switch, field effect transistor, the 4th resistance and the compound diode being formed by least two diodes in parallels; The drain electrode of described field effect transistor and the anodic bonding of described compound diode, source electrode is connected with described 5V power delivery pin, and grid is connected with described electronic switch; Described the 4th one end of resistance and the source electrode of described field effect transistor are connected, and the other end is connected with the grid of described field effect transistor; The negative electrode of described compound diode detects pin by the first resistance and described hot plug and is connected.
Preferably, described compound diode comprises the second diode of the first diode and at least one and described the first diodes in parallel, the anodic bonding of the anode of described the second diode and described the first diode, the negative electrode of described the second diode is connected with the negative electrode of described the first diode.
Preferably, described electronic switch comprises the 5th resistance, the 6th resistance, the 7th resistance, the first triode and the second triode, wherein said the first triode is NPN triode, its grounded emitter, base stage is connected with the control end of described the first switch module by the 5th resistance, and collector electrode is connected with the base stage of described the second triode; Described the second triode is NPN triode, its grounded emitter, and base stage is connected with the second preset power supply by the 6th resistance, and collector electrode is connected with the grid of described field effect transistor by the 7th resistance.
The utility model also provides a kind of display unit, and described display unit comprises MHL interface and HDMI interface common control circuit, and described MHL interface and HDMI interface common control circuit comprise the first switch module, second switch module, the first resistance; The control end of described the first switch module is connected with the TMDS data mask pin of described HDMI interface, the plug that described TMDS data mask pin is MHL interface detects pin, described the first switch module input is connected with the positive output end of the first preset power supply and the 5V power delivery pin of HDMI interface respectively with output, and described the first switch module is according to the connection status of the positive output end of the first preset power supply described in the level state control of described TMDS data mask pin and 5V power delivery pin; The control end of described second switch module is connected with described TMDS data mask pin, output is connected with one end of described 5V power delivery pin and described the first resistance respectively with input, and described second switch module is according to the connection status of 5V power delivery pin described in the level state control of described TMDS data mask pin and described the first resistance; The other end of described the first resistance detects pin with the hot plug of described HDMI interface and is connected.
The utility model, by common control circuit is set, makes original HDMI interface (for example HDMI socket in TV motherboard) can be used as MHL interface simultaneously.It is by arranging the first switch module according to the connection status of the positive output end of the level state control first preset power supply of the TMDS data mask pin of described HDMI interface and 5V power delivery pin; Second switch module is set according to the connection status of 5V power delivery pin described in the level state control of described TMDS data mask pin and described the first resistance.Arrange after this common control circuit, this HDMI interface, in the time being connected with MHL data wire, provides power supply by the first switch module for MHL data wire by the first preset power supply, is the equipment power supply being connected with MHL data wire; Meanwhile, this HDMI interface, in the time that HDMI data wire connects, is realized the impedance matching authentication requesting of HDMI by the first resistance.Therefore the MHL interface that the utility model provides and HDMI interface common control circuit have realized MHL interface and HDMI interface shares, thereby has reduced the cost of the electronic product that uses this interface, has prevented that the misoperation of factor data line from connecting, the damage of interface circuit.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the utility model MHL interface and the preferred embodiment of HDMI interface common control circuit.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of MHL interface and HDMI interface common control circuit.
With reference to Fig. 1, Fig. 1 is the electrical block diagram of the utility model MHL interface and the preferred embodiment of HDMI interface common control circuit.The MHL interface that the present embodiment provides and HDMI interface common control circuit comprise the first switch module 10, second switch module 20, the first resistance R 1; The control end of described the first switch module 10 is connected with the TMDS data mask pin (A1) of described HDMI interface, described TMDS data mask pin (A1) is that the plug of MHL interface detects pin, described the first switch module 10 inputs are connected with the positive output end of the first preset power supply vcc and the 5V power delivery pin (A2) of HDMI interface respectively with output, and described the first switch module 10 is according to the connection status of the positive output end of the first preset power supply vcc described in the level state control of described TMDS data mask pin (A1) and 5V power delivery pin (A2); The control end of described second switch module 20 is connected with described TMDS data mask pin (A1), output is connected with one end of described 5V power delivery pin (A2) and described the first resistance R 1 respectively with input, and described second switch module 20 is according to the connection status of 5V power delivery pin (A2) described in the level state control of described TMDS data mask pin (A1) and described the first resistance R 1; The other end of described the first resistance R 1 detects pin (A3) with the hot plug of described HDMI interface and is connected.
In the present embodiment, above-mentioned HDMI interface adopts the interface in television set with 19 pins, above-mentioned TMDS data mask pin (A1) is generally the 2nd pin of HDMI interface, above-mentioned 5V power delivery pin (A2) is generally the 18th pin of HDMI interface, and above-mentioned hot plug detection pin (A3) is generally the 19th pin of HDMI interface.Above-mentioned the first preset power supply vcc is preferably 5V power supply.
In the time that MHL data wire is connected with HDMI interface, the TMDS data mask pin (A1) of HDMI interface is high level, the first switch module 10 is connected controlling the positive output end of described the first preset power supply vcc and 5V power delivery pin (A2) conducting of HDMI interface, and described second switch module 20 disconnects the 5V power delivery pin (A2) of controlling described HDMI interface with described the first resistance R 1; Now providing power supply by the first switch module 10 for MHL data wire by the first preset power supply vcc, is the equipment power supply being connected with MHL data wire.In the time that HDMI data wire is connected with HDMI interface, TMDS data mask pin (A1) is low level, the first switch module 10 disconnects controlling the positive output end of described the first preset power supply vcc and the 5V power delivery pin (A2) of HDMI interface, and described second switch module 20 is connected the 5V power delivery pin (A2) of controlling described HDMI interface with described the first resistance R 1; Now by being set, the resistance of the first resistance R 1 meets the impedance matching authentication requesting of HDMI.
The present embodiment, by common control circuit is set, makes original HDMI interface (for example HDMI socket in TV motherboard) can be used as MHL interface simultaneously.It is by arranging the first switch module 10 according to the connection status of the positive output end of the level state control first preset power supply of the TMDS data mask pin (A1) of described HDMI interface and 5V power delivery pin (A2); Second switch module 20 is set according to the connection status of 5V power delivery pin (A2) described in the level state control of described TMDS data mask pin (A1) and described the first resistance R 1.Arrange after this common control circuit, this HDMI interface, in the time being connected with MHL data wire, provides power supply by the first switch module 10 for MHL data wire by the first preset power supply vcc, is the equipment power supply being connected with MHL data wire; Meanwhile, this HDMI interface, in the time that HDMI data wire connects, is realized the impedance matching authentication requesting of HDMI by the first resistance R 1.Therefore the MHL interface that the utility model provides and HDMI interface common control circuit have realized MHL interface and HDMI interface shares, thereby has reduced the cost of the electronic product that uses this interface, has prevented that the misoperation of factor data line from connecting, the damage of interface circuit.For example above-mentioned MHL interface and HDMI interface common control circuit are applied in the middle of television set, can reduce the cost of television set.
Further, in order to prevent over-current phenomenon avoidance, in the present embodiment, preferably above-mentioned MHL interface and HDMI interface common control circuit also comprise the second resistance R 2, and described the second resistance R 2 is serially connected with between the points of common connection and described TMDS data mask pin (A1) of the control end of described the first switch module 10 and the control end of described second switch module 20.
Particularly, based on above-described embodiment, in the present embodiment, above-mentioned the first switch module 10 comprises field effect transistor integrated circuit 11 and the 3rd resistance R 3, the input (the 5th pin) of described field effect integrated circuit 11 is connected with the positive output end of described the first preset power supply vcc, output (the 1st pin) is connected with described 5V power delivery pin (A2), and control end (the 4th pin) is connected with described TMDS data mask pin (A1), earth terminal (the 2nd pin) grounding connection; One end of described the 3rd resistance R 3 is connected with the control end of described field effect transistor integrated circuit 11, other end ground connection; And in the time that TMDS data mask pin (A1) is high level, the input of described field effect transistor integrated circuit 11 and output conducting, in the time that TMDS data mask pin (A1) is low level, the input of described field effect transistor integrated circuit 11 and output cut-off.
Further; in order to improve the fail safe of use; also can realize overcurrent protection in the interior current foldback circuit (not shown) that arranges of above-mentioned field effect transistor integrated circuit 11; go up particularly in field effect transistor integrated circuit 11 and be provided with current foldback circuit; described current foldback circuit detects the electric current of the input of described field effect transistor integrated circuit 11, and according to the input of field effect transistor integrated circuit 11 and the conducting of output and cut-off described in described detected size of current control.It should be noted that above-mentioned current foldback circuit allows the large I of the maximum current passing through to arrange according to actual needs, does not limit further at this.
It should be noted that the stability of the control end voltage in order to ensure field effect transistor integrated circuit 11, above-mentioned the first switch module 10 also comprises the 4th capacitor C 4, and described the 4th capacitor C 4 is connected in parallel on the two ends of described the 3rd resistance R 3.
Further, based on above-described embodiment, in the present embodiment, in order to improve the stability of field effect transistor integrated circuit 11 output voltages, output that can being on the scene effect pipe integrated circuit 11 arranges electric capacity.Particularly, in the present embodiment, above-mentioned MHL interface and HDMI interface common control circuit also comprise the first capacitor C 1 and the second capacitor C 2, and the positive pole of described the first capacitor C 1 is connected with the output of described field effect transistor integrated circuit 11, minus earth; Described the second capacitor C 2 is connected in parallel on the two ends of described the first capacitor C 1.
Be understandable that, in order to improve the stability that inputs to field effect transistor integrated circuit 11 voltages, input that can being on the scene effect pipe integrated circuit 11 arranges electric capacity and carries out filtering.Particularly, in the present embodiment, above-mentioned MHL interface and HDMI interface common control circuit also comprise the 3rd capacitor C 3, and one end of described the 3rd capacitor C 3 is connected with the input of described field effect transistor integrated circuit 11, other end ground connection.
Particularly, based on above-described embodiment, in the present embodiment, above-mentioned second switch module 20 comprises electronic switch 21, field effect transistor Q11, the 4th resistance R 4 and the compound diode 22 being formed by least two diodes in parallels; The anodic bonding of the drain electrode of described field effect transistor Q11 and described compound diode 22, source electrode is connected with described 5V power delivery pin (A2), and grid is connected with described electronic switch 21; Described the 4th one end of resistance R 4 and the source electrode of described field effect transistor Q11 are connected, and the other end is connected with the grid of described field effect transistor Q11; The negative electrode of described compound diode 22 detects pin (A3) by the first resistance R 1 and described hot plug and is connected.
In the present embodiment, in above-mentioned compound diode 22, the quantity of diode can arrange according to actual needs, is preferably two.Above-mentioned compound diode 22 comprises the first diode D1 and at least one second diode D2 in parallel with the first diode D1 particularly, the anodic bonding of the anode of described the second diode D2 and described the first diode D1, the negative electrode of described the second diode D2 is connected with the negative electrode of described the first diode D1.It should be noted that the anode of above-mentioned the first diode D1 and the public junction of anode of the second diode D2 are the anode of compound diode 22, the public junction of negative electrode of the negative electrode of the first diode D1 and the second diode D2 is the negative electrode of compound diode 22.
Be understandable that, the circuit structure of above-mentioned electronic switch 21 can arrange according to actual needs, in the present embodiment, above-mentioned electronic switch 21 comprises the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the first triode Q1 and the second triode Q2, wherein said the first triode Q1 is NPN triode, its grounded emitter, base stage is connected with the control end of described the first switch module 10 by the 5th resistance R 5, and collector electrode is connected with the base stage of described the second triode Q2; Described the second triode Q2 is NPN triode, its grounded emitter, and base stage is connected with the second preset power supply vss by the 6th resistance R 6, and collector electrode is connected with the grid of described field effect transistor Q11 by the 7th resistance R 7.
In the present embodiment, the voltage swing of above-mentioned the second preset power supply vss can arrange according to actual needs, and in the present embodiment, the voltage swing of the second preset power supply vss is preferably 3.3V.
When work, in the time that MHL data wire is connected with HDMI interface, the TMDS data mask pin (A1) of HDMI interface is high level, now the first triode Q1 is in conducting state, the second triode Q2 base stage be low level, the second triode Q2 is in cut-off state, thereby makes field effect transistor Q11 in cut-off state, and the hot plug of HDMI interface detects pin (A3) and is equivalent in vacant state.In the time that HDMI data wire is connected with HDMI interface, the TMDS data mask pin (A1) of HDMI interface is low level, now the first triode Q1 is in cut-off state, the second triode Q2 base stage be high level, the second triode Q2 is in conducting state, thereby make field effect transistor Q11 in conducting state, the hot plug of HDMI interface detects pin (A3) and coordinates the pull-up resistor that can be equal to 1K by the first resistance R 1 and compound diode 22, has met the impedance matching authentication requesting of HDMI.
The utility model also provides a kind of display unit, and this display unit comprises MHL interface and HDMI interface common control circuit, and the structure of this MHL interface and HDMI interface common control circuit can, with reference to above-described embodiment, not repeat them here.Naturally, because the display unit of the present embodiment has adopted the technical scheme of above-mentioned MHL interface and HDMI interface common control circuit, therefore this display unit has above-mentioned MHL interface and all beneficial effects of HDMI interface common control circuit.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. MHL interface and a HDMI interface common control circuit, is characterized in that, comprises the first switch module, second switch module, the first resistance; The control end of described the first switch module is connected with the TMDS data mask pin of described HDMI interface, the plug that described TMDS data mask pin is MHL interface detects pin, described the first switch module input is connected with the positive output end of the first preset power supply and the 5V power delivery pin of HDMI interface respectively with output, and described the first switch module is according to the connection status of the positive output end of the first preset power supply described in the level state control of described TMDS data mask pin and 5V power delivery pin; The control end of described second switch module is connected with described TMDS data mask pin, output is connected with one end of described 5V power delivery pin and described the first resistance respectively with input, and described second switch module is according to the connection status of 5V power delivery pin described in the level state control of described TMDS data mask pin and described the first resistance; The other end of described the first resistance detects pin with the hot plug of described HDMI interface and is connected.
2. MHL interface as claimed in claim 1 and HDMI interface common control circuit, it is characterized in that, described MHL interface and HDMI interface common control circuit also comprise the second resistance, and described the second resistance is serially connected with between the points of common connection and described TMDS data mask pin of the control end of described the first switch module and the control end of described second switch module.
3. MHL interface as claimed in claim 1 and HDMI interface common control circuit, it is characterized in that, described the first switch module comprises field effect transistor integrated circuit and the 3rd resistance, the input of described field effect integrated circuit is connected with the positive output end of described the first preset power supply, output is connected with described 5V power delivery pin, control end is connected with described TMDS data mask pin, earth terminal grounding connection; One end of described the 3rd resistance is connected with the control end of described field effect transistor integrated circuit, other end ground connection; And in the time that TMDS data mask pin is high level, the input of described field effect transistor integrated circuit and output conducting, in the time that TMDS data mask pin is low level, the input of described field effect transistor integrated circuit and output cut-off.
4. MHL interface as claimed in claim 3 and HDMI interface common control circuit; it is characterized in that; in described field effect transistor integrated circuit, be provided with current foldback circuit; described current foldback circuit detects the electric current of the input of described field effect transistor integrated circuit, and according to the input of field effect transistor integrated circuit and the conducting of output and cut-off described in described detected size of current control.
5. MHL interface as claimed in claim 3 and HDMI interface common control circuit, it is characterized in that, described MHL interface and HDMI interface common control circuit also comprise the first electric capacity and the second electric capacity, the positive pole of described the first electric capacity is connected with the output of described field effect transistor integrated circuit, minus earth; Described the second Capacitance parallel connection is at the two ends of described the first electric capacity.
6. MHL interface as claimed in claim 3 and HDMI interface common control circuit, it is characterized in that, described MHL interface and HDMI interface common control circuit also comprise the 3rd electric capacity, and one end of described the 3rd electric capacity is connected with the input of described field effect transistor integrated circuit, other end ground connection.
7. MHL interface as claimed in claim 1 and HDMI interface common control circuit, is characterized in that, described second switch module comprises electronic switch, field effect transistor, the 4th resistance and the compound diode being formed by least two diodes in parallels; The drain electrode of described field effect transistor and the anodic bonding of described compound diode, source electrode is connected with described 5V power delivery pin, and grid is connected with described electronic switch; Described the 4th one end of resistance and the source electrode of described field effect transistor are connected, and the other end is connected with the grid of described field effect transistor; The negative electrode of described compound diode detects pin by the first resistance and described hot plug and is connected.
8. MHL interface as claimed in claim 7 and HDMI interface common control circuit, it is characterized in that, described compound diode comprises the second diode of the first diode and at least one and described the first diodes in parallel, the anodic bonding of the anode of described the second diode and described the first diode, the negative electrode of described the second diode is connected with the negative electrode of described the first diode.
9. MHL interface as claimed in claim 7 and HDMI interface common control circuit, it is characterized in that, described electronic switch comprises the 5th resistance, the 6th resistance, the 7th resistance, the first triode and the second triode, wherein said the first triode is NPN triode, its grounded emitter, base stage is connected with the control end of described the first switch module by the 5th resistance, and collector electrode is connected with the base stage of described the second triode; Described the second triode is NPN triode, its grounded emitter, and base stage is connected with the second preset power supply by the 6th resistance, and collector electrode is connected with the grid of described field effect transistor by the 7th resistance.
10. a display unit, is characterized in that, comprises MHL interface and HDMI interface common control circuit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817403.6U CN203708369U (en) | 2013-12-11 | 2013-12-11 | Control circuit shared by MHL interface and HDMI interface, and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320817403.6U CN203708369U (en) | 2013-12-11 | 2013-12-11 | Control circuit shared by MHL interface and HDMI interface, and display device |
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| CN203708369U true CN203708369U (en) | 2014-07-09 |
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| CN201320817403.6U Expired - Fee Related CN203708369U (en) | 2013-12-11 | 2013-12-11 | Control circuit shared by MHL interface and HDMI interface, and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506903A (en) * | 2014-12-10 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Audio/video output processing device, method and head-mounted type display device |
| CN105100667A (en) * | 2015-08-31 | 2015-11-25 | 深圳创维－Rgb电子有限公司 | Play device and signal input control method thereof |
-
2013
- 2013-12-11 CN CN201320817403.6U patent/CN203708369U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506903A (en) * | 2014-12-10 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Audio/video output processing device, method and head-mounted type display device |
| CN105100667A (en) * | 2015-08-31 | 2015-11-25 | 深圳创维－Rgb电子有限公司 | Play device and signal input control method thereof |
| CN105100667B (en) * | 2015-08-31 | 2018-05-08 | 深圳创维－Rgb电子有限公司 | playing device and its signal input control method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20140709 Termination date: 20201211 |