CN203812004U - Power supply for real time clock - Google Patents
Power supply for real time clock Download PDFInfo
- Publication number
- CN203812004U CN203812004U CN201420187749.7U CN201420187749U CN203812004U CN 203812004 U CN203812004 U CN 203812004U CN 201420187749 U CN201420187749 U CN 201420187749U CN 203812004 U CN203812004 U CN 203812004U
- Authority
- CN
- China
- Prior art keywords
- chip
- power supply
- pin
- capacitor
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electric Clocks (AREA)
Abstract
The utility model discloses a power supply for a real time clock. The power supply comprises a main power supply and a backup power supply which supplies power for the real time clock and a clock chip, wherein the clock chip is a chip DS1302, the backup power supply is connected with a VCC1 pin of the chip DS1302; the backup power supply is a battery BT1; the VCC1 pin of the chip DS1302 is divided into two path, one path is connected with the positive electrode terminal of the battery BT1, the other path is grounded through a capacitor CX10; the output terminal of the main power supply is a VDD power supply terminal, the voltage value of the VDD power supply terminal is larger than the power supply voltage of the battery BT1; a VCC2 pin of the chip DS1302 is connected with the VDD power supply terminal; and the main power supply comprises a 5V direct current power supply and a low voltage drop linear voltage stabilizer, and an output terminal of the low voltage drop linear voltage stabilizer is the VDD power supply terminal. The power supply is simple in structure, reasonable in design, low in investment cost, convenient to wire, good in usage effect, and capable of guaranteeing the clock chip to work stably.
Description
Technical field
The utility model relates to a kind of power supply, especially relates to a kind of real-time clock power supply.
Background technology
Traditional stem-winder, due to the fine requirement of doing manual work, involves great expense, and adds the restriction of the aspects such as rapidoprint, persond eixis precision, serviceable life, can not meet people's user demand.Nowadays, digital clock has occupied status, principal market.Digital dock be adopt digital circuit to time, the time set that shows of minute, second numeral, as real-time clock (REAL TIME CLOCK, be abbreviated as RTC), the public places such as individual family, station, harbour, office have now been widely used in, become necessity indispensable in people's daily life, due to the development of digital integrated circuit and the widespread use of quartz oscillator, make the accuracy of timekeeping of digital dock higher.In recent years, along with electronic product development is growing more intense with social competition, busy and numerous and diverse property of work all makes people easily forget current time, thereby more and more higher to the requirement of digital dock, as time precision requirement, the convenience demand of observing time etc., need can fast, accurately to know current time whenever and wherever possible, and require clock can be more intuitively, more reliable and cheaper.In addition, also have the aspect requirements such as volume is little, low in energy consumption.
In laboratory, carry out in process of the test, often need accurate timing, for meeting the timing demand in laboratory, need to design a kind of circuit simple, reasonable in design, input cost is lower and make simple and easy, use easy and simple to handle, the real-time clock that result of use is good, when designed real-time clock adopts chip DS1302 as clock chip, because the VCC1 pin of chip DS1302 is that back-up source terminals and its VCC2 pin are primary power terminals, VCC2 pin and power supply join, during actual use, magnitude of voltage the greater that chip DS1302 is provided by VCC1 and VCC2 pin is powered.When above-mentioned real-time clock is powered, conventionally adopt same power supply to power to the display module of chip DS1302 and real-time clock.In actual use procedure, find that display module can not correctly show the time, from the register of chip DS1302 during reading out data, there is mistake in the time of reading, analyze reason and be that the operating voltage of chip DS1302 is 2.5V～5.5V, though the voltage of power supply is not higher than the operating voltage maximal value of chip DS1302, but because the access of back-up source makes the real work voltage of chip DS1302, surpassed its operating voltage maximal value, thereby caused the chip DS1302 can not steady operation.Thereby, nowadays needing that a kind of circuit is simple, reasonable in design, input cost is lower and easy-to-connect, real-time clock power supply that result of use is good, it can guarantee clock chip steady operation.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of real-time clock power supply is provided, its circuit is simple, reasonable in design, input cost is lower and easy-to-connect, result of use are good, can guarantee clock chip steady operation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of real-time clock power supply, it is characterized in that: the standby power supply that comprises main electricity and power for the clock chip of real-time clock, described clock chip is chip DS1302, and the VCC1 pin of described standby power supply and chip DS1302 joins; Described standby power supply is battery BT1; The VCC1 pin of chip DS1302 divides two-way, and the positive terminal of a road and battery BT1 joins, and another road is ground connection after capacitor C X10; The power output end of described main electricity is VDD power end, and the magnitude of voltage of described VDD power end is greater than the supply voltage of battery BT1; The VCC2 pin of chip DS1302 connects VDD power end; Described main electricity comprises 5V direct supply and the low-voltage-drop linear voltage regulator joining with described 5V direct supply, and the positive terminal of the input end of described low-voltage-drop linear voltage regulator and described 5V direct supply joins and its output terminal is VDD power end; The display module of described real-time clock is that liquid crystal display and described liquid crystal display are LCD12864A display, and the BLA of described LCD12864A display and VDD pin all join with described 5V direct supply.
Above-mentioned a kind of real-time clock power supply, is characterized in that: also comprise voltage table V, two terminals of voltage table V join with VCC1 pin and the GND pin of chip DS1302 respectively.
Above-mentioned a kind of real-time clock power supply, is characterized in that: the supply voltage of described battery BT1 is 3V, and described VDD power end is VDD3.3 power end and its is+3.3V power end; Described low-voltage-drop linear voltage regulator is chip SP6205.
Above-mentioned a kind of real-time clock power supply, it is characterized in that: the positive terminal of described 5V direct supply is minute two-way after diode D1, one tunnel joins with the negative terminals of described 5V direct supply after capacitor C 2, and the Vin pin of another road and chip SP6205 joins.
Above-mentioned a kind of real-time clock power supply, it is characterized in that: described main electricity also comprises power light, described power light is LED 23, the anode of LED 23 joins with the negative electrode of diode D1 after resistance R 1, the negative terminals of the negative electrode of LED 23 and described 5V direct supply is joined, and the Vout pin of chip SP6205 is+3.3V power end.
Above-mentioned a kind of real-time clock power supply, is characterized in that: in described capacitor C 2 and be connected to bi-directional voltage stabilizing diode D2.
Above-mentioned a kind of real-time clock power supply, is characterized in that: the RSN pin of described chip SP6205 ground connection after capacitor C 5, and the Vout pin of chip SP6205 ground connection after capacitor C 7, in capacitor C 7 and be connected to polar capacitor C6; The GND pin ground connection of chip SP6205, is connected to capacitor C 3 between the Vin of chip SP6205 and GND pin, in capacitor C 3 and be connected to polar capacitor C4; The GND pin of chip SP6205 joins with the negative terminals of described 5V direct supply after inductance FB3, and the GND pin of chip SP6205 is GND terminals; The RSN pin of chip SP6205 connects GND terminals after capacitor C 5, and the Vout pin of chip SP6205 connects GND terminals after capacitor C 7.
Above-mentioned a kind of real-time clock power supply, is characterized in that: the Vin pin of described chip SP6205 is+5V DC power supply terminal, the BLA of LCD12864A display and all connect+5V of VDD pin DC power supply terminal.
The utility model compared with prior art has the following advantages:
1, circuit is simple, reasonable in design and input cost is lower, can be each electricity consumption module for power supply such as controller in real-time clock, display module, clock chip, key-press module simultaneously.
2, easy-to-connect and result of use are good, practical value is high, can effectively solve the display module existing while adopting same power supply to power to chip DS1302 and display module and can not carry out the correct problem showing to the time, because the main cause of this problem is that the operating voltage of chip DS1302 is 2.5V～5.5V, though the voltage of main electricity is not higher than the operating voltage maximal value of chip DS1302, but because the access of back-up source makes the real work voltage of chip DS1302 surpass its operating voltage maximal value, thereby cause the chip DS1302 can not steady operation, like this from the register of chip DS1302 during reading out data, there is mistake in the time of reading.The power module that the utility model adopts comprises main electricity and 3V standby power supply, for chip DS1302, the supply voltage that main electricity provides is 3.3V, and when main electricity provides the operating voltage of 3.3V, the undertension of backup battery, to allow the real work voltage of chip DS1302 surpass 5.5V, so just can effectively guarantee chip DS1302 steady operation.
In sum, the utility model circuit is simple, reasonable in design, input cost is lower and easy-to-connect, result of use are good, can guarantee clock chip steady operation.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model main electricity.
Fig. 2 is the schematic block circuit diagram of real-time clock that the utility model is powered.
Fig. 3 is the circuit theory diagrams of the clock chip of real-time clock that the utility model is powered.
Fig. 4 is the circuit theory diagrams of the controller of real-time clock that the utility model is powered.
Fig. 5 is the circuit theory diagrams of the key-press module of real-time clock that the utility model is powered.
Fig. 6 is the circuit theory diagrams of the display module of real-time clock that the utility model is powered.
Fig. 7 is the circuit theory diagrams of the reset circuit of real-time clock that the utility model is powered.
Fig. 8 is the circuit theory diagrams of the crystal oscillating circuit of real-time clock that the utility model is powered.
Description of reference numerals:
1-controller; 2-key-press module; 3-display module;
4-power module; 5-clock chip.
Embodiment
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 6, the standby power supply that the utility model comprises main electricity and powers for the clock chip 5 of real-time clock, described clock chip 5 is chip DS1302, the VCC1 pin of described standby power supply and chip DS1302 joins.Described standby power supply is battery BT1.The VCC1 pin of chip DS1302 divides two-way, and the positive terminal of a road and battery BT1 joins, and another road is ground connection after capacitor C X10.The power output end of described main electricity is VDD power end, and the magnitude of voltage of described VDD power end is greater than the supply voltage of battery BT1; The VCC2 pin of chip DS1302 connects VDD power end.Described main electricity comprises 5V direct supply and the low-voltage-drop linear voltage regulator joining with described 5V direct supply, and the positive terminal of the input end of described low-voltage-drop linear voltage regulator and described 5V direct supply joins and its output terminal is VDD power end.The display module 3 of described real-time clock is that liquid crystal display and described liquid crystal display are LCD12864A display, and the BLA of described LCD12864A display and VDD pin all join with described 5V direct supply.
In the present embodiment, the utility model also comprises voltage table V, and two terminals of voltage table V join with VCC1 pin and the GND pin of chip DS1302 respectively.
In the present embodiment, the supply voltage of described battery BT1 is 3V, and described VDD power end is VDD3.3 power end and its is+3.3V power end; Described low-voltage-drop linear voltage regulator is chip SP6205.
During physical cabling, the positive terminal of described 5V direct supply is minute two-way after diode D1, and a road joins with the negative terminals of described 5V direct supply after capacitor C 2, and the Vin pin of another road and chip SP6205 joins.
As shown in Figure 1, described main electricity also comprises power light, described power light is LED 23, the anode of LED 23 joins with the negative electrode of diode D1 after resistance R 1, the negative terminals of the negative electrode of LED 23 and described 5V direct supply is joined, and the Vout pin of chip SP6205 is+3.3V power end.
In the present embodiment, in described capacitor C 2 and be connected to bi-directional voltage stabilizing diode D2.
During physical cabling, the RSN pin of described chip SP6205 ground connection after capacitor C 5, the Vout pin of chip SP6205 ground connection after capacitor C 7, in capacitor C 7 and be connected to polar capacitor C6; The GND pin ground connection of chip SP6205, is connected to capacitor C 3 between the Vin of chip SP6205 and GND pin, in capacitor C 3 and be connected to polar capacitor C4; The GND pin of chip SP6205 joins with the negative terminals of described 5V direct supply after inductance FB3, and the GND pin of chip SP6205 is GND terminals; The RSN pin of chip SP6205 connects GND terminals after capacitor C 5, and the Vout pin of chip SP6205 connects GND terminals after capacitor C 7.Wherein, the negative terminals of CON1 terminals and described 5V direct supply is joined.
In the present embodiment, the Vin pin of described chip SP6205 is+5V DC power supply terminal, the BLA of LCD12864A display and all connect+5V of VDD pin DC power supply terminal.
As described in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in the present embodiment, described controller 1 is chip LM3S8962, the SCLK of chip DS1302, IO and CE pin join with PD7, PD6 and the PD5 pin of chip LM3S8962 respectively, and the X1 of chip DS1302 and X2 pin join with two terminals of crystal oscillator XTAL respectively.The D0 of LCD12864A display, D1, D2, D3, D4, D5, D6 and D7 pin join with PA0, PA1, PA2, PA3, PA4, PA5, PA6 and the PA7 pin of chip LM3S8962 respectively, the RS of LCD12864A display, R/W and E pin join with PD0, PD1 and the PD2 pin of chip LM3S8962 respectively, the PSB pin of LCD12864A display and the PD3 pin of chip LM3S8962 joins and the PD4 pin of its RST pin and chip LM3S8962 joins.Described key-press module 2 comprises button KEY1, KEY2, KEY3 and KEY4.One end ground connection of button KEY1 and its other end be minute two-way after resistance R 23, and the PE2 pin of a road and chip LM3S8962 joins, and another road connects VDD power end after resistance R 25; One end ground connection of button KEY2 and its other end be minute two-way after resistance R 24, and the PE3 pin of a road and chip LM3S8962 joins, and another road connects VDD power end after resistance R 26; One end ground connection of button KEY3 and its other end be minute two-way after resistance R 32, and the PB4 pin of a road and chip LM3S8962 joins, and another road connects VDD power end after resistance R 27; One end ground connection of button KEY4 and its other end be minute two-way after resistance R 33, and the PB5 pin of a road and chip LM3S8962 joins, and another road connects VDD power end after resistance R 34.
As shown in Figure 7 and Figure 8, described real-time clock also comprises crystal oscillating circuit and the reset circuit joining with controller 1, described crystal oscillating circuit comprises crystal oscillator Y1, the OSCO of chip LM3S8962 and OSCI pin join with two terminals of crystal oscillator Y1 respectively, and two terminals of crystal oscillator Y1 are ground connection after capacitor C 14 and C15 respectively; Described reset circuit comprises reset key KEY7, and the RST pin of chip LM3S8962 divides two-way, and a road is ground connection after reset key KEY7, and another road connects VDD power end after resistance R 2, and reset key KEY7 goes up and be connected to capacitor C 13.
During physical cabling, in capacitor C 2 and be connected to capacitor C 1.And, the GND pin ground connection of chip DS1302.
In the present embodiment, as shown in Figure 5, between the PE2 pin of resistance R 23 and chip LM3S8962, be connected to socket JP13, between the PE3 pin of resistance R 24 and chip LM3S8962, be connected to socket JP14, between the PB4 pin of resistance R 32 and chip LM3S8962, be connected to socket JP15, between resistance R 33 and the PB5 pin of chip LM3S8962, be connected to socket JP16.
During physical cabling, the VDD pin of chip LM3S8962 and all connect+3.3V of VDDA pin power end.Described chip LM3S8962 first controller based on ARMCortex-M3 for being provided by Luminary Micro company, during actual use, by chip DS1302 energy Real-time Obtaining current time, and carry out simultaneous display by LCD12864A display, thereby can learn at any time current time.Chip DS1302 is a kind of high-performance, low-power consumption of U.S. DALLAS company, with RAM and can use the real-time timepiece chip of backup battery power supply, can to year, month, day, week, time, minute, second carries out timing, and have leap year compensate function, operating voltage is 2.5V～5.5V.In addition, configure 3V reserve battery (being described standby power supply) on the VCC2 of chip DS1302 pin, while guaranteeing power down, real-time timepiece chip 5 can also normally be worked, and the temporal information in each register of clock chip 5 can access real-time update.And DS1302 carries out data access by chip LM3S8962 control chip.The PD7 pin of chip LM3S8962 is to chip DS1302 transmitted signal, and the PD5 pin of chip LM3S8962 sends reset signal to chip DS1302, and the PD6 pin of chip LM3S8962 carries out writing and reading of serial data.
In actual use procedure, using LCD12864A display as human-computer interaction interface, have simple to operate, practical and can meet the requirement of simultaneous display.Described key-press module 2 adopts four independent buttons (being button KEY1, KEY2, KEY3 and KEY4).Wherein, resistance R 25, R26, R27 and R34 are pull-up resistor.When independent button is not pressed, due to the effect of pull-up resistor, the pin place that chip LM3S8962 is corresponding detects high level; When independent button is pressed, under the dividing potential drop effect of resistance R 23, R24, R32 or R33, the pin place that chip LM3S8962 is corresponding detects low level.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. a real-time clock power supply, it is characterized in that: the standby power supply that comprises main electricity and power for the clock chip of real-time clock (5), described clock chip (5) is chip DS1302, and the VCC1 pin of described standby power supply and chip DS1302 joins; Described standby power supply is battery BT1; The VCC1 pin of chip DS1302 divides two-way, and the positive terminal of a road and battery BT1 joins, and another road is ground connection after capacitor C X10; The power output end of described main electricity is VDD power end, and the magnitude of voltage of described VDD power end is greater than the supply voltage of battery BT1; The VCC2 pin of chip DS1302 connects VDD power end; Described main electricity comprises 5V direct supply and the low-voltage-drop linear voltage regulator joining with described 5V direct supply, and the positive terminal of the input end of described low-voltage-drop linear voltage regulator and described 5V direct supply joins and its output terminal is VDD power end; The display module of described real-time clock (3) is that liquid crystal display and described liquid crystal display are LCD12864A display, and the BLA of described LCD12864A display and VDD pin all join with described 5V direct supply.
2. according to a kind of real-time clock power supply claimed in claim 1, it is characterized in that: also comprise voltage table V, two terminals of voltage table V join with VCC1 pin and the GND pin of chip DS1302 respectively.
3. according to a kind of real-time clock power supply described in claim 1 or 2, it is characterized in that: the supply voltage of described battery BT1 is 3V, described VDD power end is VDD3.3 power end and its is+3.3V power end; Described low-voltage-drop linear voltage regulator is chip SP6205.
4. according to a kind of real-time clock power supply claimed in claim 3, it is characterized in that: the positive terminal of described 5V direct supply is minute two-way after diode D1, one tunnel joins with the negative terminals of described 5V direct supply after capacitor C 2, and the Vin pin of another road and chip SP6205 joins.
5. according to a kind of real-time clock power supply claimed in claim 4, it is characterized in that: described main electricity also comprises power light, described power light is LED 23, the anode of LED 23 joins with the negative electrode of diode D1 after resistance R 1, the negative terminals of the negative electrode of LED 23 and described 5V direct supply is joined, and the Vout pin of chip SP6205 is+3.3V power end.
6. according to a kind of real-time clock power supply claimed in claim 4, it is characterized in that: in described capacitor C 2 and be connected to bi-directional voltage stabilizing diode D2.
7. according to a kind of real-time clock power supply claimed in claim 3, it is characterized in that: the RSN pin of described chip SP6205 ground connection after capacitor C 5, the Vout pin of chip SP6205 ground connection after capacitor C 7, in capacitor C 7 and be connected to polar capacitor C6; The GND pin ground connection of chip SP6205, is connected to capacitor C 3 between the Vin of chip SP6205 and GND pin, in capacitor C 3 and be connected to polar capacitor C4; The GND pin of chip SP6205 joins with the negative terminals of described 5V direct supply after inductance FB3, and the GND pin of chip SP6205 is GND terminals; The RSN pin of chip SP6205 connects GND terminals after capacitor C 5, and the Vout pin of chip SP6205 connects GND terminals after capacitor C 7.
8. according to a kind of real-time clock power supply claimed in claim 4, it is characterized in that: the Vin pin of described chip SP6205 is+5V DC power supply terminal, the BLA of LCD12864A display and all connect+5V of VDD pin DC power supply terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187749.7U CN203812004U (en) | 2014-04-17 | 2014-04-17 | Power supply for real time clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187749.7U CN203812004U (en) | 2014-04-17 | 2014-04-17 | Power supply for real time clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812004U true CN203812004U (en) | 2014-09-03 |
Family
ID=51450733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420187749.7U Expired - Fee Related CN203812004U (en) | 2014-04-17 | 2014-04-17 | Power supply for real time clock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034974A (en) * | 2020-08-22 | 2020-12-04 | 深圳市海曼科技股份有限公司 | Clock chip power supply switching method, device, terminal and medium |
| CN112506028A (en) * | 2020-11-19 | 2021-03-16 | 西安热工研究院有限公司 | Black start test node time recording device and method |
| CN112947735A (en) * | 2021-02-04 | 2021-06-11 | 浪潮电子信息产业股份有限公司 | Power supply circuit of server clock chip and server |
-
2014
- 2014-04-17 CN CN201420187749.7U patent/CN203812004U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034974A (en) * | 2020-08-22 | 2020-12-04 | 深圳市海曼科技股份有限公司 | Clock chip power supply switching method, device, terminal and medium |
| CN112034974B (en) * | 2020-08-22 | 2021-12-24 | 深圳市海曼科技股份有限公司 | Clock chip power supply switching method, device, terminal and medium |
| CN112506028A (en) * | 2020-11-19 | 2021-03-16 | 西安热工研究院有限公司 | Black start test node time recording device and method |
| CN112947735A (en) * | 2021-02-04 | 2021-06-11 | 浪潮电子信息产业股份有限公司 | Power supply circuit of server clock chip and server |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203812004U (en) | Power supply for real time clock | |
| CN104519633B (en) | A kind of under-voltage protecting circuit for LED lamp | |
| CN203827573U (en) | Table lamp | |
| CN203773398U (en) | Real-time clock based on chip LM3S8962 | |
| CN203851329U (en) | Power optimal controlled table lamp | |
| CN209297244U (en) | A kind of industrial personal computer timed power on/off circuit | |
| CN203775372U (en) | Touch wireless microphone with electric quantity display | |
| CN206574646U (en) | A kind of dial-up type time relay | |
| CN207318970U (en) | A kind of ultralow-power electronic thermometer | |
| CN202661919U (en) | Real-time clock low power consumption control circuit realized by system on chip | |
| CN112130701B (en) | Display touch device and power supply control method | |
| CN203012381U (en) | Second point rotation clock | |
| CN202258113U (en) | Multifunction perpetual calendar | |
| CN210270872U (en) | Portable serial port detector | |
| CN202067092U (en) | Muslim praying clock | |
| CN201421708Y (en) | LCM driving circuit | |
| CN203012382U (en) | Low power-consumption English clock | |
| CN205509846U (en) | Ammeter power failure intelligence circuit of checking meter | |
| CN102279306A (en) | Signal-driving alternated current/direct current digital ampere meter with low power consumption | |
| CN104348351A (en) | Synchronous switch circuit for PFC (power factor correction) | |
| CN202133702U (en) | Low power consumption signal driving AC-DC digital ammeter | |
| CN209070311U (en) | The electricity-saving type period reminds bracelet | |
| CN211293645U (en) | Novel clock chip power supply circuit | |
| CN2679934Y (en) | Time indicator of cell phone | |
| CN208335186U (en) | A kind of minimum system based on STM32 multifunctional intellectual reminiscences |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140903 Termination date: 20180417 |