CN104967460A - Cell phone device, radio frequency transceiver circuit and impedance adjustment device - Google Patents
Cell phone device, radio frequency transceiver circuit and impedance adjustment device Download PDFInfo
- Publication number
- CN104967460A CN104967460A CN201510424768.6A CN201510424768A CN104967460A CN 104967460 A CN104967460 A CN 104967460A CN 201510424768 A CN201510424768 A CN 201510424768A CN 104967460 A CN104967460 A CN 104967460A
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- tuning apparatus
- impedence tuning
- impedance
- switch
- 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.)
- Pending
Links
Landscapes
- Transceivers (AREA)
Abstract
The invention discloses a cell phone device, a radio frequency transceiver circuit and an impedance adjustment device. the cell phone device comprises a baseband processor, an antenna, a diplexer and a radio frequency transceiver circuit, wherein the antenna is used for receiving and transmitting a radio frequency signal; the diplexer is electrically connected with the antenna; the radio frequency transceiver circuit is connected with the baseband processor and the diplexer respectively; and the radio frequency transceiver circuit comprises a first power amplifier and an impedance adjustment device. The first power amplifier has first output impedance. The impedance adjustment device is electrically connected between the first power amplifier and the diplexer, and comprises at least one switch. The baseband processor is connected with and controls at least one switch in the impedance adjustment device so as to adjust the impedance value of the impedance adjustment device, and the first load impedance of the first power amplifier is matched with the first output impedance.
Description
Technical field
The present invention relates to impedence tuning apparatus, be particularly applied in the impedence tuning apparatus of coupling different capacity amplifier.
Background technology
Among general mobile communications device, radio circuit intermediate power amplifier, such as, wideband pulse-amplitude modulation power amplifier, matched impedance network all adopt the mode of customization to arrange in pairs or groups.Once need to change different power amplifiers, the matched impedance network of customization also must be changed thereupon.Which increase production cost.In view of this, the present invention proposes a kind of impedence tuning apparatus and applies the mobile device of this impedence tuning apparatus.
Summary of the invention
One embodiment of the invention provide a kind of mobile device.This mobile device comprises a baseband processor, an antenna, a duplexer and a radio-frequency transceiver circuitry.This antenna is in order to receive and dispatch multiple radiofrequency signal.This duplexer is electrically connected to this antenna.This radio-frequency transceiver circuitry is connected to this baseband processor and this duplexer respectively.This radio-frequency transceiver circuitry comprises one first power amplifier and an impedence tuning apparatus.This first power amplifier has one first output impedance.This impedence tuning apparatus is electrically connected between this first power amplifier and this duplexer, and comprise at least one switch, wherein this baseband processor connect and this at least one switch controlling this impedence tuning apparatus to adjust a resistance value of this impedence tuning apparatus, one first load impedance of this first power amplifier and this first output impedance are matched each other.
One embodiment of the invention provide a kind of radio-frequency transceiver circuitry.This radio-frequency transceiver circuitry comprises one first power amplifier and an impedence tuning apparatus.This first power amplifier has one first output impedance.This impedence tuning apparatus is electrically connected to this first power amplifier, and comprise at least one switch, wherein this impedence tuning apparatus controls this at least one switch to adjust one of this impedence tuning apparatus resistance value according to one first control signal being received from a baseband processor, and one first load impedance of this first power amplifier and this first output impedance are matched each other.
One embodiment of the invention provide a kind of impedence tuning apparatus, are applicable to coupling one first power amplifier or one second power amplifier.This impedence tuning apparatus comprises one first switch and a second switch.This first and second switch is one first resistance value or one second resistance value in order to switch a resistance value of this impedence tuning apparatus, wherein this resistance value is switched to this first resistance value to adjust one first load impedance of this first power amplifier according to one first control signal being received from a baseband processor by this impedence tuning apparatus, and one first output impedance of this first load impedance and this first power amplifier is matched each other.
Accompanying drawing explanation
Figure 1A and Figure 1B is the block diagram illustrating mobile device 10 of the present invention according to the first embodiment of the present invention.
Fig. 2 A and Fig. 2 B is the block diagram illustrating radio-frequency transceiver circuitry 20 of the present invention according to the second embodiment of the present invention.
Fig. 3 A and Fig. 3 B is the block diagram illustrating impedence tuning apparatus 30 of the present invention according to the third embodiment of the present invention.
Embodiment
Illustrated embodiment appended by the disclosure or example will as described below.The scope of the present disclosure is not as limit.Those skilled in the art should be able to know under the prerequisite not departing from spirit of the present disclosure and framework, when doing a little change, replacement and displacement.In embodiment of the present disclosure, component symbol may be used repeatedly, and connection with several embodiments of the present disclosure may share identical component symbol, but the feature member used for an embodiment must not used by another embodiment.
Figure 1A and Figure 1B is the block diagram illustrating one of the present invention mobile device 10 according to one first embodiment of the present invention.In the first embodiment of the invention, as shown in Figure 1A, mobile device 10 comprises antenna 110, duplexer 120, radio-frequency transceiver circuitry 130 and a baseband processor 140.Antenna 110 is in order to receive and dispatch multiple radiofrequency signal.Duplexer 120 is electrically connected antenna 110 and radio-frequency transceiver circuitry 130 respectively.Radio-frequency transceiver circuitry 130 is electrically connected to baseband processor 140.In the first embodiment of the invention, radio-frequency transceiver circuitry 130 comprises rf processing circuitry 131, low noise amplifier 132,1 first power amplifier 133 and an impedence tuning apparatus 134.Noise in the radiofrequency signal that low noise amplifier 132 receives in order to filtering antenna 110.First 133, power amplifier in order to export to antenna by after the power amplification of radiofrequency signal, and has one first output impedance.Impedence tuning apparatus 134 is electrically connected between the first power amplifier 133 and duplexer 120.The array that impedence tuning apparatus 134 is made up of variable capacitor, inductor and at least one switch, and there is adjustable resistance value.In the first embodiment of the invention, rf processing circuitry 131 comprises the associated radio frequency analog circuits such as mixer, pierce circuit, I/Q modulator circuit, phase-locked loop, frequency demultiplier circuit, IQ demodulator circuit.
In the first embodiment of the invention, baseband processor 140 connects impedence tuning apparatus 134, and this at least one switch of control group adjusting device 134 is to adjust a resistance value of impedence tuning apparatus 134.In the first embodiment of the invention, one first load impedance of the first power amplifier 133 is the equiva lent impedance that an equiva lent impedance of impedence tuning apparatus 134 adds next stage duplexer 120.Therefore, baseband processor 140 moves Industry Processor Interface (Mobile Industry Processor Interface by it; MIPI) this at least one switch of control group adjusting device 134 is to adjust this resistance value of impedence tuning apparatus 134, such as, one first control signal is sent to impedence tuning apparatus 134, and then one first load impedance of the first power amplifier 133 and this first output impedance are matched each other.Now, this first output impedance can equal the conjugate impedance of this first load impedance, makes the first power amplifier 133 be transferred to the energy of this first load impedance maximum.In addition, in the first embodiment of the invention, designer can calculate this resistance value of the impedence tuning apparatus 134 needed for mating with this first output impedance in advance according to the former figure of Smith.
In the first embodiment of the invention, as shown in Figure 1B, when the designer of mobile device 10 considers the first power amplifier 133 in mobile device 10 to be replaced into one second power amplifier 135 such as based on design, the power amplifier of another frequency band of displacement is considered based on frequency band, time, the designer of mobile device 10 sets baseband processor 140, makes baseband processor 140 pairs of impedence tuning apparatus 134 send one second control signal.Now, impedence tuning apparatus 134, according to this resistance value of this second control signal adjustment impedence tuning apparatus 134, makes one second load impedance of the second power amplifier 135 and one second output impedance of the second power amplifier 135 match each other.In the first embodiment of the invention, one second load impedance of the second power amplifier 135 is the equiva lent impedance that one of impedence tuning apparatus 134 equiva lent impedance adds next stage duplexer 120.Now, this second output impedance can equal the conjugate impedance of this second load impedance, makes the second power amplifier 135 be transferred to the energy of this second load impedance maximum.In addition, in the first embodiment of the invention, designer can calculate this resistance value of the impedence tuning apparatus 134 needed for mating with this second output impedance in advance according to the former figure of Smith.
Fig. 2 A and Fig. 2 B is the block diagram illustrating one of the present invention radio-frequency transceiver circuitry 20 according to one second embodiment of the present invention.In second embodiment of the invention, as shown in Figure 2 A, radio-frequency transceiver circuitry 20 comprises one first power amplifier 21 and an impedence tuning apparatus 22.First power amplifier 21 has one first output impedance, and is electrically connected to impedence tuning apparatus 22.The array that impedence tuning apparatus 22 is made up of variable capacitor, inductor and at least one switch, and there is adjustable resistance value.In second embodiment of the invention, impedence tuning apparatus 22, according to being received from least one switch of one first control signal control group adjusting device 22 of a baseband processor 23 to adjust the resistance value of himself, makes one first load impedance of the first power amplifier 21 and this first output impedance match each other.Now, this first output impedance can equal the conjugate impedance of this first load impedance, makes the first power amplifier 21 be transferred to the energy of this first load impedance maximum.
In second embodiment of the invention, as shown in Figure 2 B, when the first power amplifier 21 in radio-frequency transceiver circuitry 20 is replaced into second power amplifier 24, impedence tuning apparatus 22 controls this at least one switch to adjust the resistance value of himself according to one second control signal being received from baseband processor 23, and one second load impedance of this second power amplifier 24 and one second output impedance of the second power amplifier 24 match each other.Now, this second output impedance can equal the conjugate impedance of this second load impedance, makes the second power amplifier 24 be transferred to the energy of this second load impedance maximum.
Fig. 3 A and Fig. 3 B is the block diagram illustrating an impedence tuning apparatus 30 of the present invention according to of the present invention 1 the 3rd embodiment.In third embodiment of the invention, as shown in Figure 3A, impedence tuning apparatus 30 comprises one first switch 301, second switch 302,1 first impedance 303 and one second impedance 304.As shown in Figure 3A, the first switch 301 and second switch 302 are electrically connected to the first impedance 303 and the second impedance 304 separately.Impedence tuning apparatus 30 by switching first switch 301 and second switch 302 to provide the first impedance 303 or the second impedance 304, and the load impedance using it as one first power amplifier 31.In third embodiment of the invention, impedence tuning apparatus 30 is according to one first control signal conducting first switch 301 being received from a baseband processor 32 and close second switch 302 to provide the first impedance 303, and one first output impedance of the first impedance 303 and the first power amplifier 31 is matched each other.In addition, in third embodiment of the invention, designer can calculate this resistance value of the first impedance 303 needed for mating with this first output impedance in advance according to the former figure of Smith.
In third embodiment of the invention, as shown in Figure 3 B, when impedence tuning apparatus 30 uses second output impedance in coupling one second power amplifier 33 instead, impedence tuning apparatus 30 is according to the one second control signal conducting second switch 302 being received from baseband processor 32 and close the first switch 301 to provide the second impedance 304, and one second output impedance of the second impedance 304 and the second power amplifier 33 is matched each other.In addition, in third embodiment of the invention, designer can calculate this resistance value of the second impedance 304 needed for mating with this second output impedance in advance according to the former figure of Smith.
Impedence tuning apparatus described in of the present invention first to the 3rd embodiment can be applied among general radio frequency transmitter circuit, and can as the load impedance mated with each power amplifier in radio frequency transmitter circuit.Such as, all employ multiple power amplifier being applied in different bandwidth in the portable radio device of general LTE or CDMA, among the replacing of designer's wish during certain several power amplifier, the matched impedance network of arranging in pairs or groups with power amplifier also needs to change thereupon.Now, if impedence tuning apparatus of the present invention to be equipped on respectively the load end of each power amplifier, then designer only need send a control signal to impedence tuning apparatus to adjust its resistance value by baseband processor, and does not need the matched impedance network that replacing power amplifier is arranged in pairs or groups.Therefore, apply impedence tuning apparatus of the present invention and the designer of radio-frequency unit can be allowed when intending to change different capacity amplifier, do not need the impedance matching network changed in the lump corresponding to power amplifier and effectively can save development cost.In addition, the matched impedance that the impedence tuning apparatus visual user Demand Design many groups described in the of the present invention first to the 3rd embodiment is different, its number viewable design person demand changes.
Though the present invention with preferred embodiment openly as above, makes those skilled in the art can more clearly understand content of the present invention.But, it will be understood by those skilled in the art that they can easily with the present invention as basis, design or modification process and use mobile device, radio-frequency transceiver circuitry and impedence tuning apparatus carry out identical object and/or reach the same advantage of embodiment presented here.Therefore protection scope of the present invention is when being as the criterion depending on appended claims confining spectrum.
Claims (8)
1. a mobile device, comprising:
Baseband processor;
Antenna, in order to receive and dispatch multiple radiofrequency signal;
Duplexer, is electrically connected to this antenna; And
Radio-frequency transceiver circuitry, be connected to this baseband processor and this duplexer respectively, this radio-frequency transceiver circuitry comprises:
First power amplifier, has the first output impedance; And
Impedence tuning apparatus, be electrically connected between this first power amplifier and this duplexer, wherein this impedence tuning apparatus comprises at least one switch; And
Wherein this baseband processor connect and this at least one switch controlling this impedence tuning apparatus to adjust the resistance value of this impedence tuning apparatus, the first load impedance of this first power amplifier and this first output impedance are matched each other.
2. mobile device as claimed in claim 1, wherein this baseband processor controls this at least one switch of this impedence tuning apparatus by the mobile Industry Processor Interface of this baseband processor.
3. mobile device as claimed in claim 1, wherein when this first power amplifier in this mobile device is replaced into the second power amplifier, this baseband processor controls this impedence tuning apparatus to adjust this resistance value of this impedence tuning apparatus, and the second load impedance of this second power amplifier and the second output impedance of this second power amplifier are matched each other.
4. a radio-frequency transceiver circuitry, comprising:
First power amplifier, has the first output impedance; And
Impedence tuning apparatus, be electrically connected to this first power amplifier, wherein this impedence tuning apparatus comprises at least one switch; And
Wherein this impedence tuning apparatus controls this at least one switch to adjust the resistance value of this impedence tuning apparatus according to the first control signal being received from baseband processor, and the first load impedance of this first power amplifier and this first output impedance are matched each other.
5. radio-frequency transceiver circuitry as claimed in claim 4, wherein this baseband processor sends this first control signal by mobile Industry Processor Interface.
6. radio-frequency transceiver circuitry as claimed in claim 4, wherein when this first power amplifier in this radio-frequency transceiver circuitry is replaced into the second power amplifier, this impedence tuning apparatus controls this at least one switch to adjust this resistance value of this impedence tuning apparatus according to the second control signal being received from this baseband processor, and one second load impedance of this second power amplifier and the second output impedance of this second power amplifier are matched each other.
7. an impedence tuning apparatus, be applicable to coupling first power amplifier or the second power amplifier, this impedence tuning apparatus comprises:
First switch and second switch, be the first resistance value or the second resistance value in order to switch the resistance value of this impedence tuning apparatus, wherein this resistance value is switched to this first resistance value to adjust the first load impedance of this first power amplifier according to the first control signal being received from baseband processor by this impedence tuning apparatus, and one first output impedance of this first load impedance and this first power amplifier is matched each other.
8. impedence tuning apparatus as claimed in claim 7, wherein when this impedence tuning apparatus uses the second output impedance in coupling second power amplifier instead, this impedence tuning apparatus controls this resistance value to switch to this second resistance value to adjust the second load impedance of this second power amplifier according to the second control signal being received from this baseband processor, and the second output impedance of this second load impedance and this second power amplifier is matched each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510424768.6A CN104967460A (en) | 2015-07-17 | 2015-07-17 | Cell phone device, radio frequency transceiver circuit and impedance adjustment device |
| CN201910963668.9A CN110661543B (en) | 2015-07-17 | 2015-07-17 | Mobile phone device, radio frequency transceiver circuit and impedance adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510424768.6A CN104967460A (en) | 2015-07-17 | 2015-07-17 | Cell phone device, radio frequency transceiver circuit and impedance adjustment device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963668.9A Division CN110661543B (en) | 2015-07-17 | 2015-07-17 | Mobile phone device, radio frequency transceiver circuit and impedance adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967460A true CN104967460A (en) | 2015-10-07 |
Family
ID=54221419
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510424768.6A Pending CN104967460A (en) | 2015-07-17 | 2015-07-17 | Cell phone device, radio frequency transceiver circuit and impedance adjustment device |
| CN201910963668.9A Active CN110661543B (en) | 2015-07-17 | 2015-07-17 | Mobile phone device, radio frequency transceiver circuit and impedance adjusting device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963668.9A Active CN110661543B (en) | 2015-07-17 | 2015-07-17 | Mobile phone device, radio frequency transceiver circuit and impedance adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104967460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826313A (en) * | 2021-01-11 | 2022-07-29 | 炬芯科技股份有限公司 | Radio frequency circuit, touch detection method of radio frequency circuit and wearable device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541632A (en) * | 2021-06-29 | 2021-10-22 | 深圳市广和通无线股份有限公司 | Impedance adjustable circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070135062A1 (en) * | 2005-12-14 | 2007-06-14 | Samsung Electronics Co., Ltd. | Apparatus for automatically matching frequency of antenna in wireless terminal and method thereof |
| CN101005289A (en) * | 2005-12-14 | 2007-07-25 | 三星电子株式会社 | Apparatus for automatically matching frequency of antenna in wireless terminal and method of using the same |
| WO2013063938A1 (en) * | 2011-11-04 | 2013-05-10 | 中兴通讯股份有限公司 | Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal |
| CN103312278A (en) * | 2013-05-10 | 2013-09-18 | 华中科技大学 | Power control system for radio-frequency power amplifier |
| CN103428829A (en) * | 2012-05-14 | 2013-12-04 | 联想(北京)有限公司 | Method for optimizing communication terminal power consumption and communication terminal |
| CN103546188A (en) * | 2013-10-30 | 2014-01-29 | 西安乾易企业管理咨询有限公司 | Wireless mobile terminal of self-tuning antenna and adjusting method of self-tuning antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7379714B2 (en) * | 2004-04-02 | 2008-05-27 | Interdigital Technology Corporation | Method and apparatus for dynamically adjusting a transmitter's impedance |
| US7420425B2 (en) * | 2006-09-28 | 2008-09-02 | Via Technologies, Inc. | Power amplifier and method thereof |
| CN101478291A (en) * | 2008-10-24 | 2009-07-08 | 锐迪科微电子（上海）有限公司 | Radio frequency power amplifier circuit and radio frequency power amplifying method |
| JP5672098B2 (en) * | 2011-03-18 | 2015-02-18 | 富士通株式会社 | Wireless terminal device |
| US8638156B2 (en) * | 2011-08-05 | 2014-01-28 | Analog Devices, Inc. | Multi-output-resistance switch driver circuits |
-
2015
- 2015-07-17 CN CN201510424768.6A patent/CN104967460A/en active Pending
- 2015-07-17 CN CN201910963668.9A patent/CN110661543B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070135062A1 (en) * | 2005-12-14 | 2007-06-14 | Samsung Electronics Co., Ltd. | Apparatus for automatically matching frequency of antenna in wireless terminal and method thereof |
| CN101005289A (en) * | 2005-12-14 | 2007-07-25 | 三星电子株式会社 | Apparatus for automatically matching frequency of antenna in wireless terminal and method of using the same |
| WO2013063938A1 (en) * | 2011-11-04 | 2013-05-10 | 中兴通讯股份有限公司 | Power amplification module, multi-mode radio frequency transceiver, duplexer and multi-mode terminal |
| CN103428829A (en) * | 2012-05-14 | 2013-12-04 | 联想(北京)有限公司 | Method for optimizing communication terminal power consumption and communication terminal |
| CN103312278A (en) * | 2013-05-10 | 2013-09-18 | 华中科技大学 | Power control system for radio-frequency power amplifier |
| CN103546188A (en) * | 2013-10-30 | 2014-01-29 | 西安乾易企业管理咨询有限公司 | Wireless mobile terminal of self-tuning antenna and adjusting method of self-tuning antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826313A (en) * | 2021-01-11 | 2022-07-29 | 炬芯科技股份有限公司 | Radio frequency circuit, touch detection method of radio frequency circuit and wearable device |
| CN114826313B (en) * | 2021-01-11 | 2024-01-09 | 炬芯科技股份有限公司 | Radio frequency circuit, touch detection method of radio frequency circuit and wearable device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110661543B (en) | 2021-07-06 |
| CN110661543A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8712348B2 (en) | Apparatus and method for controlling a tunable matching network in a wireless network | |
| KR102362459B1 (en) | Adaptive load for coupler in broadband multimode multi-band front end module | |
| US8942641B2 (en) | Antenna apparatus and communication apparatus | |
| US10164668B2 (en) | Mobile device, radio transceiver circuit, and impedance adjustment device | |
| EP2424119A1 (en) | Antenna module and impedance matching method thereof | |
| TWI724360B (en) | Antenna apparatus, electronic apparatus and antenna modification method | |
| WO2015124090A1 (en) | Radio-frequency circuit and terminal device | |
| CN108365860B (en) | Terminal equipment | |
| JP2012039637A (en) | Dual band radio frequency transmitter | |
| CN105471490B (en) | Repeater and signal processing method thereof | |
| CN101459442A (en) | Method and system for sharing antennas for high frequency and low frequency applications | |
| CN104640011A (en) | Dual-frequency power amplification device applied to AP (access point) and AP equipment | |
| CN104320154A (en) | Multimode multi-frequency front end device | |
| KR100946098B1 (en) | Wireless communication apparatus of time division type | |
| CN104967460A (en) | Cell phone device, radio frequency transceiver circuit and impedance adjustment device | |
| CN104753557A (en) | Wireless data transfer radio | |
| CN105227198B (en) | A kind of antenna system and mobile terminal | |
| CN104518812A (en) | Mobile terminal switching antenna and switching method thereof | |
| KR102194705B1 (en) | Band selection switch circuit and amplifying device | |
| TWI462537B (en) | Communication apparatus and radio frequency equalizer | |
| US11277165B2 (en) | Radio frequency front-end transmission module, chip, and communications terminal | |
| KR101641019B1 (en) | Variable Attenuator System | |
| CN105990683B (en) | Device and method for adjusting antenna | |
| WO2016063014A1 (en) | Antenna impedance matching with negative impedance converters | |
| US9484963B2 (en) | Multi-mode and multi-band front-end device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160728 Address after: American California Applicant after: Intel Corporation Address before: The Cayman Islands, British West Indies Applicant before: Ky Wire Electric Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |