CN201947223U - Power-amplifying circuit and mobile terminal - Google Patents
Power-amplifying circuit and mobile terminal Download PDFInfo
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- CN201947223U CN201947223U CN 201020682432 CN201020682432U CN201947223U CN 201947223 U CN201947223 U CN 201947223U CN 201020682432 CN201020682432 CN 201020682432 CN 201020682432 U CN201020682432 U CN 201020682432U CN 201947223 U CN201947223 U CN 201947223U
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- power amplifier
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- 230000003321 amplification Effects 0.000 claims description 32
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 32
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/408—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising three power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7227—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by a switch in the supply circuit of the amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7231—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into cascade or not, by choosing between amplifiers by one or more switch(es)
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
- H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The utility model discloses a power-amplifying circuit and a mobile terminal. The power-amplifying circuit comprises cascaded power amplifiers, and further comprises a first switch and a second switch, wherein at least one stage power amplifier of the power amplifiers is connected with a power source through the first switch, and the first switch is used for switching on or switching off power amplifiers which are connected with the first switch. The first switch is switched on or switched off according to control signals. Input ports and output ports of power amplifiers, which are connected with the first switch, are respectively provided with output circuits. The second switch is used for choosing output circuits. The power-amplifying circuit and the mobile terminal can achieve the effect of saving electricity.
Description
Technical field
The utility model relates to the communications field, in particular to a kind of power amplification circuit and portable terminal.
Background technology
When wireless communication terminal (or being called portable terminal) operate as normal, can adjust transmitting power according to the instruction of base station side on the terminal sender, the purpose of this adjustment is to allow the transmit signal power of terminal and the base station signal coupling that receives, for example, terminal detects base station signal when strong by receiver, the path loss that terminal to base station is described is less, and terminal can be with less transmitting power work, and vice versa.Can avoid long high-power emission like this, reduce the operating current of power amplifier, conserve battery power, the stand-by time of raising terminal.Simultaneously on the one hand reduce transmitting power, in the self-interference system, can reduce interference, the base station capacity is increased, in non-self-interference system, reduce interfering with each other of neighbor cell on the other hand other users.Usually the design of the power amplifier that uses on this communication terminal adopts the amplifier cascade union of two-stage or the quantity more than the two-stage to become, Fig. 1 is the schematic diagram according to the communication terminal power amplification circuit of correlation technique, as shown in Figure 1, no matter terminal need be exported big power is still exported little power, always by the input of first order amplifier input terminal, export from the final amplifier output stage in the path of signal.Therefore, the problem of being brought is, when the little power output of needs, the gain of whole power discharging device is constant, and input signal can be regulated forr a short time, to adapt to the small-power output of final needs, but each grade amplifier is still worked, and power consumption still can be bigger like this.
The utility model content
Main purpose of the present utility model is to provide a kind of power amplification circuit and portable terminal, to address the above problem.
According to an aspect of the present utility model, a kind of power amplification circuit is provided, the power amplifier that comprises cascade, also comprise: first switch and second switch, wherein, at least one stage power amplifier in the described power amplifier is connected to power supply by described first switch, and described first switch is used for opening or turn-offing connected power amplifier, wherein, described first switch is opened or is turn-offed according to control signal; The amplifier input terminal mouth and the output port that are connected with described first switch are respectively arranged with output circuit, and described second switch is used to select output circuit.
Preferably, each stage power amplifier in the described power amplifier is connected to described power supply by described first switch respectively; The output port of described each stage power amplifier all is provided with output circuit separately, and described second switch user selects output circuit.
Preferably, the every stage power amplifier in the described power amplifier is divided into groups, at least one group of power amplifier is connected to described power supply by described first switch, and wherein, one group of power amplifier comprises one or more levels power amplifier; The input port and the output port of the one group of power amplifier that is connected with described first switch are provided with output circuit, and described second switch is used to select output circuit.
Preferably, described output circuit comprises match circuit.
Preferably, described control signal is sent by baseband processor.
Preferably, described first switch and described second switch are radio-frequency (RF) switch.
Preferably, described first switch is opened or is turn-offed according to control signal, and described second switch is selected output circuit according to described control signal.
According on the other hand of the present utility model, a kind of portable terminal also is provided, comprise above-mentioned power amplification circuit.
Preferably, the described output circuit of described power amplification circuit comprises match circuit.
The utility model, the power amplification circuit that adopts comprises: the power amplifier of cascade, also comprise: first switch and second switch, wherein, at least one stage power amplifier in the power amplifier is connected to power supply by first switch, first switch is used for opening or turn-offing connected power amplifier, and wherein, described first switch is opened or turn-offed according to control signal; The amplifier input terminal mouth and the output port that are connected with first switch are respectively arranged with output circuit, and second switch is used to select output circuit.Solve every grade of the correlation technique intermediate power amplifier big problem of power consumption of all working, and then reached the effect of power saving.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the communication terminal power amplification circuit of correlation technique;
Fig. 2 is the schematic diagram according to the power amplification circuit of the utility model embodiment.
Embodiment
Hereinafter will describe the utility model with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
In the present embodiment, a kind of power amplification circuit is provided, this power amplification circuit can be arranged in portable terminal, and power amplification circuit comprises the power amplifier of cascade, also comprises: first switch and second switch are (for example, radio-frequency (RF) switch), wherein, at least one stage power amplifier in the power amplifier is connected to power supply by first switch, and first switch is used for opening or turn-offing connected power amplifier, wherein, first switch is opened or is turn-offed according to control signal; The amplifier input terminal mouth and the output port that are connected with first switch are respectively arranged with output circuit, and second switch is used to select output circuit.
Need to prove that the control signal of controlling first switch and second switch can be same control signal, can certainly adopt different control signals to control respectively.
By above-mentioned power amplification circuit, on at least one stage power amplifier, be provided with switch, for example, consider that power amplifier is cascade, therefore, can on one or more levels power amplifier of the most close total output, switch be set, can close one or more levels power amplifier like this, thereby changed power amplifier every grade of big problems of power consumption of all working all in the correlation technique, and then reached purpose of power saving.In addition, compare with correlation technique, owing to can close one or more levels power amplifier, thus can realize littler power output.
Preferably, when implementing,, can in power amplification circuit, be connected to power supply by one first switch respectively by each stage power amplifier in order better power amplifier to be controlled; The output port of each stage power amplifier all is provided with output circuit separately.Like this, independent outputs at different levels have realized the power output of power amplifier with different brackets, the peak power output of grade is separately represented in each output, the cascade quantity and the available output signal level of amplifier are directly proportional, the cascade quantity that is amplifier is many more, and available output signal level is also many more.Independent switching circuit and control signal corresponding are controlled its output, export thereby reach to need selectively according to terminal.Power amplification circuit is according to the working condition of amplifiers at different levels, power for the amplifier that participates in amplifying, cut off the power supply for the amplifier that does not participate in amplifying, adopt switch to control the unlatching and the shutoff of the power supply of each cascade amplifier, to reach the electricity-saving function under the situation of small-signal power output.
Certainly, preferably, can also divide into groups to power amplifier, adopt a switch to control to different groups, for example, the every stage power amplifier in the power amplifier is divided into groups, at least one group of power amplifier is connected to power supply by one first switch, wherein, one group of power amplifier comprises one or more levels power amplifier; The input port and the output port of the one group of power amplifier that is connected with first switch are provided with output circuit, and second switch is used to select output circuit.
Preferably, output circuit comprises match circuit, and each output all has the match circuit of characteristic separately, to ensure the stability of all output signals.
Preferably, power amplifier carries out power output selectively for convenience, and control signal can be sent by baseband processor.Preferably, can adopt baseband processor control single pole multiple throw, and,, thereby reach the power output that complete machine needs by the corresponding output port of signal level control according to the output signal level of the demand control power amplifiers of complete machine.
Below be the example explanation with the integrated power amplifier of three-stage cascade amplifier, present embodiment provides the topological structure and the relevant control circuit of the power amplifier of wireless communication terminal, adopt this power amplifier under small signal model, to save electric current, prolong the stand-by time and the air time of complete machine.
Wireless data terminal power amplifier in the present embodiment comprises with lower module: A, power amplification link and main power output channel.The match circuit of independent outputs at different levels on B, the link.The switching circuit and the control signal corresponding of C, control independent outputs at different levels.D, amplification link power control switch at different levels (i.e. first switch) and correspondent control circuits.Wherein, power amplification link and main power output channel are responsible for realizing maximum output power levels grade, and the match circuit of independent outputs at different levels is responsible for realizing exporting suborder and the output coupling of amplifier during the following power output of suborder more on the link.Control the switching circuit of independent outputs at different levels and control signal corresponding and be responsible for realizing the control of each output level of power.Amplify link power control switch at different levels and correspondent control circuits and be responsible for realizing working condition, give to participate in the amplifier power supply of amplifying, give and do not participate in the amplifier outage of amplifying according to amplifiers at different levels.
By the foregoing description, solved every grade in the power amplifier big problem of power consumption of all working effectively, reduce operating current, increase wireless terminal standby and air time, and, reduce caloric value, reduce the temperature of wireless terminal.
Fig. 2 is according to the schematic diagram of the power amplification circuit of the utility model embodiment, describes below in conjunction with Fig. 2.
1 zone is the inner simple block diagram of integrated power amplifier.
2 zones are the amplification link of signal, the power amplification effect of signal is still finished by this regional circuit, but can see, the amplification link that is different from correlation technique among Fig. 1, main power output channel is not promptly just arranged, the one's respective area all also has an output port separately and adapts to the match circuit of characteristic separately from the output of input port and each grade amplifier, select the output of whole power amplifier with radio-frequency (RF) switch, such design not only can realize maximum output power levels grade, can also allow the power amplifier link export from different cascades according to different output levels, such as, if select output port output amplifying signal from PA2, the third level is by bypass so, the power supply of third level amplifier is cut off simultaneously, the electric current of integrated amplifier descends when all working compared with each level of traditional integrated power amplifier, reaches the effect of saving electric current.Each cascaded topology that changes the conventional power amplifier is that output is parallel with whole cascade outputs separately in each cascade.The peak power output of grade is separately represented in each output, and the cascade quantity and the available output signal level of amplifier are directly proportional, and promptly the cascade quantity of amplifier is many more, and available output signal level is also many more.
3 zones are the match circuit of independent outputs at different levels, be responsible for to realize the output suborder and more during the following power output of suborder, power amplifier can ensure the stability of the signal of all outputs with various output level operate as normal, has realized the safe, stable of circuit.
4 zones are given according to the power output of terminal needs and are amplified the switching circuit that link provides control, switching circuit comprises second switch and the control signal corresponding of controlling independent outputs at different levels, control the second switch control power output at different levels of independent outputs at different levels, control signal is sent by baseband processor, and the single pole multiple throw of baseband processor control is according to the output signal level of the demand control power amplifiers of complete machine; Also comprise first switch and the correspondent control circuits of amplifying link power supply controls at different levels, control the amplifier power supply of each grade by the amplifier power supply unlatching/stopcock of same control signal control, promptly, working condition according to amplifiers at different levels, power for the amplifier that participates in amplifying, cut off the power supply for the amplifier that does not participate in amplifying, so that finish the function of dynamic reduction operating current.
5 region aids functions comprise and amplify link final stage coupling and power-sensing circuit commonly used, do not have integrated in the power-sensing circuit power amplifier in early days.Providing of this function of power detection is the trend of power amplifier.
Solve every grade in the power amplifier big problem of power consumption of all working by the foregoing description, and then reached the effect of power saving.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present utility model or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, carry out by calculation element thereby they can be stored in the storage device, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the utility model is not restricted to any specific hardware and software combination.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1. power amplification circuit comprises it is characterized in that the power amplifier of cascade, also comprises: first switch and second switch, wherein,
At least one stage power amplifier in the described power amplifier is connected to power supply by described first switch, and described first switch is used for opening or turn-offing connected power amplifier, and wherein, described first switch is opened or turn-offed according to control signal;
The amplifier input terminal mouth and the output port that are connected with described first switch are respectively arranged with output circuit, and described second switch is used to select output circuit.
2. power amplification circuit according to claim 1 is characterized in that, each stage power amplifier in the described power amplifier is connected to described power supply by described first switch respectively; The output port of described each stage power amplifier all is provided with output circuit separately, and described second switch user selects output circuit.
3. power amplification circuit according to claim 1, it is characterized in that, every stage power amplifier in the described power amplifier is divided into groups, at least one group of power amplifier is connected to described power supply by described first switch, wherein, one group of power amplifier comprises one or more levels power amplifier; The input port and the output port of the one group of power amplifier that is connected with described first switch are provided with output circuit, and described second switch is used to select output circuit.
4. according to each described power amplification circuit in the claim 1 to 3, it is characterized in that described output circuit comprises match circuit.
5. according to each described power amplification circuit in the claim 1 to 3, it is characterized in that described control signal is sent by baseband processor.
6. according to each described power amplification circuit in the claim 1 to 3, it is characterized in that described first switch and described second switch are radio-frequency (RF) switch.
7. according to each described power amplification circuit in the claim 1 to 3, it is characterized in that described first switch is opened or turn-offed according to control signal, and described second switch is selected output circuit according to described control signal.
8. a portable terminal is characterized in that, comprises each described power amplification circuit in the claim 1 to 3.
9. portable terminal according to claim 8 is characterized in that, the described output circuit of described power amplification circuit comprises match circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020682432 CN201947223U (en) | 2010-12-27 | 2010-12-27 | Power-amplifying circuit and mobile terminal |
| PCT/CN2011/071608 WO2012088798A1 (en) | 2010-12-27 | 2011-03-08 | Power amplifier circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020682432 CN201947223U (en) | 2010-12-27 | 2010-12-27 | Power-amplifying circuit and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947223U true CN201947223U (en) | 2011-08-24 |
Family
ID=44474559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020682432 Expired - Lifetime CN201947223U (en) | 2010-12-27 | 2010-12-27 | Power-amplifying circuit and mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201947223U (en) |
| WO (1) | WO2012088798A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906201A (en) * | 2012-12-25 | 2014-07-02 | 联芯科技有限公司 | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof |
| CN104104340A (en) * | 2013-04-03 | 2014-10-15 | 安凯(广州)微电子技术有限公司 | Radio-frequency power amplifier |
| CN106301246A (en) * | 2016-07-28 | 2017-01-04 | 维沃移动通信有限公司 | The power supply circuits of a kind of radio-frequency power amplifier and mobile terminal |
| CN108092674A (en) * | 2016-11-21 | 2018-05-29 | 株式会社村田制作所 | Power amplifier module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999043083A1 (en) * | 1998-02-19 | 1999-08-26 | Ntt Mobile Communications Network Inc. | Amplifier for radio transmission |
| US7711070B2 (en) * | 2005-08-25 | 2010-05-04 | Qualcomm, Incorporated | Method and apparatus for control of transmitter power consumption |
| CN200944586Y (en) * | 2006-04-14 | 2007-09-05 | 中兴通讯股份有限公司 | Device for improving dynamic range of receiver |
-
2010
- 2010-12-27 CN CN 201020682432 patent/CN201947223U/en not_active Expired - Lifetime
-
2011
- 2011-03-08 WO PCT/CN2011/071608 patent/WO2012088798A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906201A (en) * | 2012-12-25 | 2014-07-02 | 联芯科技有限公司 | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof |
| CN104104340A (en) * | 2013-04-03 | 2014-10-15 | 安凯(广州)微电子技术有限公司 | Radio-frequency power amplifier |
| CN106301246A (en) * | 2016-07-28 | 2017-01-04 | 维沃移动通信有限公司 | The power supply circuits of a kind of radio-frequency power amplifier and mobile terminal |
| CN106301246B (en) * | 2016-07-28 | 2020-06-05 | 维沃移动通信有限公司 | Power supply circuit of radio frequency power amplifier and mobile terminal |
| CN108092674A (en) * | 2016-11-21 | 2018-05-29 | 株式会社村田制作所 | Power amplifier module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012088798A1 (en) | 2012-07-05 |
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| C14 | Grant of patent or utility model | ||
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Owner name: SHENZHEN ZHONGXING TELECOMMUNICATION TECHNOLOGY SE Free format text: FORMER OWNER: ZTE CORPORATION Effective date: 20150109 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518057 SHENZHEN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
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| CP02 | Change in the address of a patent holder |
Address after: 518057, A building, Zhongxing building, Nanshan District science and Technology Park, Shenzhen, Guangdong, five Patentee after: ZTE Corp. Address before: 518057 Nanshan District science and technology, Guangdong Province, South Road, No. 55, No. Patentee before: ZTE Corp. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150109 Address after: 518000 Zhongxing building, A3-01, A3-02, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee after: Shenzhen ZTE Technical Service Co.,Ltd. Address before: 518057, A building, Zhongxing building, Nanshan District science and Technology Park, Shenzhen, Guangdong, five Patentee before: ZTE Corp. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
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| CX01 | Expiry of patent term |