CN106454649A - Double-voice-coil loudspeaking assembly and loudspeaking apparatus - Google Patents
Double-voice-coil loudspeaking assembly and loudspeaking apparatus Download PDFInfo
- Publication number
- CN106454649A CN106454649A CN201610674772.2A CN201610674772A CN106454649A CN 106454649 A CN106454649 A CN 106454649A CN 201610674772 A CN201610674772 A CN 201610674772A CN 106454649 A CN106454649 A CN 106454649A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- magnetic
- double
- loudspeaking
- voice
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a double-voice-coil loudspeaking assembly. The double-voice-coil loudspeaking assembly comprises two loudspeaking single bodies, each loudspeaking single body comprises a magnetic circuit system, a diaphragm and a voice call, the voice coil is connected with the diaphragm, the voice coil is contained in a magnetic gap of the magnetic circuit system, and openings of the magnetic gaps of the two magnetic circuit systems are arranged in an opposite manner. The invention also provides a loudspeaking apparatus with the double-voice-coil loudspeaking assembly. Based on the above scheme, according to the double-voice-coil loudspeaking assembly and the loudspeaking apparatus, high sound pressure level can be provided, and the loudspeaking loudness can be increased.
Description
Technical field
The present invention relates to electroacoustic techniques field, and in particular to a kind of double voice coil loudspeaking component and raise one's voice with the double voice coil
The loudspeaker arrangement of component.
Background technology
At present, speaker is widely used as the vitals of the mobile terminal with voice play function.
Mobile terminal requires that speaker has higher sound pressure level, and existing loudspeaker design commonly uses a vibrating diaphragm and a sound
Circle, electro-acoustic conversion efficiency is relatively low, improves the limited in one's ability of sound pressure level (loudness).Therefore, it is necessary to propose one kind effectively can carry
The loudspeaker design of high sound pressure level.
Content of the invention
In view of this, the embodiment of the present invention provides a kind of double voice coil loudspeaking component and loudspeaker arrangement, it is possible to increase electroacoustic turns
Efficiency is changed, higher sound pressure level is provided, raise one's voice loudness beneficial to raising.
The double voice coil loudspeaking component of one embodiment of the invention, raises one's voice monomer including the first monomer and second of raising one's voice, and first raises
Sound monomer and the second monomer of raising one's voice share a vibrating diaphragm, and the first monomer of raising one's voice also includes the first magnetic circuit system and the first voice coil loudspeaker voice coil, and second
Monomer of raising one's voice also includes the second magnetic circuit system and the second voice coil loudspeaker voice coil, and the first voice coil loudspeaker voice coil is contained in the first magnetic gap of the first magnetic circuit system
In, the second voice coil loudspeaker voice coil is contained in the second magnetic gap of the second magnetic circuit system, and the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are connected with vibrating diaphragm respectively.
Wherein, double voice coil loudspeaking component also includes to fix first and raise one's voice monomer and the second periphery for raising one's voice monomer for housing
Housing, peripheral housing includes that the first housing and the second housing, the first magnetic circuit system and the second magnetic circuit system are fixed on the first housing
The same side, the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil be fixed on the second housing, and the second housing is by the outward flange pressure holding of vibrating diaphragm in first shell
On the edge of body.
Wherein, the first magnetic circuit system includes the first magnetic assembly, and the second magnetic circuit system includes the second magnetic assembly, the first magnetic assembly
Around the second magnetic assembly and with the second magnetic assembly interval setting, the region shape between the first magnetic assembly and the second magnetic assembly
Become the second magnetic gap.
Wherein, the second magnetic assembly and the first housing interval setting, and region between the two forms the first magnetic gap.
Wherein, the first magnetic assembly and the second magnetic assembly all include magnet steel and magnetic conductive board, and magnetic conductive board is arranged at the direction of magnet steel
The side of vibrating diaphragm.
Wherein, the second housing offers the opening for exposing vibrating diaphragm.
Wherein, double voice coil loudspeaking component further includes shell fragment, and shell fragment is used for electrically connecting with the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil
Connect.
Wherein, double voice coil loudspeaking component also includes to be arranged at the top dome on the outside of vibrating diaphragm.
Wherein, vibrating diaphragm includes central region and marginal area, and central region is planar structure, marginal area for outwardly
Arcuate structure, top dome is arranged in corresponding planar structure.
The loudspeaker arrangement of one embodiment of the invention, including above-mentioned double voice coil loudspeaking component.
Beneficial effect：The embodiment of the present invention designs two sets of monomers of raising one's voice, i.e., drive same vibrating diaphragm to produce by two voice coil loudspeaker voice coils
Sound such that it is able to improve electro-acoustic conversion efficiency, provides higher sound pressure level, raises one's voice loudness beneficial to raising.
Description of the drawings
Fig. 1 is the structure sectional view of the double voice coil loudspeaking component of one embodiment of the invention；
Fig. 2 is the structure top view of double voice coil loudspeaking component shown in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the skill to each exemplary embodiment provided by the present invention
Art scheme is clearly and completely described.In the case of not conflicting, the technical characteristic in following embodiments and embodiment can
To be mutually combined.Also, the directional terminology adopted in full by the present invention, for example " on ", the wording such as D score, be for more preferably
Each embodiment of description, be not intended to limit protection scope of the present invention.
Fig. 1 and Fig. 2 is referred to, is the double voice coil loudspeaking component of one embodiment of the invention.The double voice coil loudspeaking component 10
Raise one's voice monomer including the first monomer and second of raising one's voice, first raises one's voice monomer and the second monomer of raising one's voice shares a vibrating diaphragm 11, and first raises
Sound monomer includes the first magnetic circuit system and the first voice coil loudspeaker voice coil 13, and the second monomer of raising one's voice includes the second magnetic circuit system and the second voice coil loudspeaker voice coil 15.
Wherein, the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15 are all connected with vibrating diaphragm 11.First voice coil loudspeaker voice coil 13 is contained in the first of the first magnetic circuit system
121 kinds of magnetic gap, the second voice coil loudspeaker voice coil 15 is contained in the second magnetic gap 141 of the second magnetic circuit system, the first magnetic gap 121 and second
The opening of magnetic gap 141 is arranged in the same direction, i.e. the opening of the first magnetic circuit system and the second magnetic gap 141 is all towards vibrating diaphragm 11.
The double voice coil loudspeaking component 10 further includes to house to be fixed the first monomer and second of raising one's voice and raises one's voice the outer of monomer
Casing body.Specifically, peripheral housing includes the first housing 161 and the second housing 162, the first magnetic circuit system and the second magnetic circuit system
Be fixed on the same side of the first housing 161, the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15 be fixed on the second housing 162 towards first shell
The side of body 161.Second housing 162 by the outward flange pressure holding of vibrating diaphragm 11 on the edge of the first housing 161, the second housing 162
Be interlocked to form an accommodation space with the first housing 161, so as to by first raise one's voice monomer and second raise one's voice monomer house fix.Enter
One step ground, the second housing 162 offers the opening for exposing vibrating diaphragm 11.
Please continue to refer to Fig. 1 and Fig. 2, the first magnetic circuit system and the second magnetic circuit system include 122 He of the first magnetic assembly respectively
Second magnetic assembly 142, the first magnetic assembly 122 around the second magnetic assembly 142 and with 142 interval setting of the second magnetic assembly.
Second magnetic assembly 142 and 161 interval setting of the first housing, and region between the two forms the first magnetic gap 121, the first magnetic group
Region between part 122 and the second magnetic assembly 142 forms the second magnetic gap 141.
In the present embodiment, the first magnetic assembly 122 and the second magnetic assembly 142 preferably include magnet steel 171 and magnetic conductive board 172,
Magnetic conductive board 172 is arranged at the side towards vibrating diaphragm 11 of magnet steel 171.Certainly, other embodiment can arrange 122 He of the first magnetic assembly
Second magnetic assembly 142 is Magnet.
In the present embodiment, correspondence is adjacent to the first magnetic assembly of the first magnetic gap 121 and 141 both sides of the second magnetic gap
122 and second magnetic assembly 142 opposite polarity.As a example by shown in Fig. 1, the first magnetic group of 141 both sides of the second magnetic gap is adjacent to
Part 122 is S pole, then the second magnetic assembly 142 for being adjacent to 141 both sides of the second magnetic gap is N pole.
Magnetic induction line produced by second magnetic assembly 142 by N pole, through corresponding first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil
15, the corresponding S pole for entering the first magnetic assembly 122 for being located at the first magnetic gap 121 and 141 opposite side of the second magnetic gap, this
The inside of two magnetic assemblies 142 flows to N pole by S pole, so as to constitute complete magnetic strength line loop.In the first magnetic circuit system and the second magnetic
In the system of road, the first magnetic assembly 122 and the second magnetic assembly 142 can all produce the magnetic strength line loop.
Further, the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15 are energized.Alternatively, double voice coil loudspeaking component 10 is provided with
Positioned at the shell fragment 18 of 162 side of the second housing, shell fragment 18 is used for being electrically connected with the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15, i.e. the
One voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15 can be energized by shell fragment 18.Wherein, the first sound in the first magnetic gap of the left and right sides 121
The sense of current of circle 13 is conversely, as a example by shown in Fig. 1, the sense of current in left side is inside, and the sense of current on right side is outside；Position
The sense of current of the second voice coil loudspeaker voice coil 15 in the second magnetic gap of the left and right sides 141 conversely, as a example by shown in Fig. 1, the electric current in left side
Direction is inside, and the sense of current on right side is outside.From the foregoing, in the second magnetic assembly 142 per side, 13 He of the first voice coil loudspeaker voice coil
The sense of current of the second voice coil loudspeaker voice coil 15 is identical.
According to Faraday law of electromagnetic induction, the first voice coil loudspeaker voice coil 13 of energising and the second voice coil loudspeaker voice coil 15 are in aforementioned magnetic strength line loop
Do cutting magnetic induction line motion and power is produced, the power promotes vibrating diaphragm 11 to vibrate respectively, vibrating diaphragm 11 promotes air vibration then, so as to
Produce sound.
It should be appreciated that embodiment illustrated in fig. 1 is only a kind of working method of the double voice coil loudspeaking component 10, the present invention
Embodiment can be by the first magnetic assembly 122 of adjustment and polarity and the first voice coil loudspeaker voice coil 13 and second voice coil loudspeaker voice coil of the second magnetic assembly 142
Sense of current during 15 energising so that double voice coil loudspeaking component 10 produces sound, and these belong to the protection of the embodiment of the present invention
Scope.
In addition, the present embodiment can also be in the first housing 161 corresponding to the first magnetic gap 121 and the second magnetic gap 141
Position at be respectively provided with yoke.The yoke is outwards dissipated for constraining magnetic induction line, makes magnetic induction line concentrate on induction coil (i.e.
First voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15) around, so that induction efficiency is improved, and play magnetic screening action.
When there is a signal of telecommunication to be given to double voice coil loudspeaking component 10, i.e., while carrying out to the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15
During energising, vibrating diaphragm 11 works (vibration), is compared to prior art and only drives vibrating diaphragm work by a voice coil loudspeaker voice coil, and the present invention is implemented
Example is equivalent to the effective vibration area for increasing double voice coil loudspeaking component 10, i.e., the significant surface vibrated by vibrating diaphragm promotion air
Product.Computing formula according to following sound pressure level, it is known that, the sound pressure level of double voice coil loudspeaking component 10 is directly proportional to effectively vibration area
Example relation, therefore the embodiment of the present invention can increase sound pressure level, raise one's voice loudness beneficial to raising, so as to improve electroacoustic conversion effect
Rate.
Wherein, SPLrefRepresent the sound pressure level of double voice coil loudspeaking component 10, B represents the first magnetic gap 121 and the second magnetic gap
Magnetic induction in 141, l represents that the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15 are respectively cut between the first magnetic gap 121 and the second magnetic
The effective length of the magnetic induction line in gap 141, ReRepresent the DC impedance of the first voice coil loudspeaker voice coil 13 and the second voice coil loudspeaker voice coil 15, MmsRepresent first
The quality of voice coil loudspeaker voice coil 13, the second voice coil loudspeaker voice coil 15 and vibrating diaphragm 11, SdRepresent effective vibration area of double voice coil loudspeaking component 10.
Please continue to refer to Fig. 1, the double voice coil loudspeaking component 10 of the present embodiment also includes the top dome for being arranged at 11 outside of vibrating diaphragm
19.The top dome 19 can expand the high-frequency cut-off frequency of double voice coil loudspeaking component 10.The top dome 19 is separate with vibrating diaphragm 11
, both the mode such as can paste by glue and be fixed.
Alternatively, the vibrating diaphragm 11 includes central region and edge region, and central region is planar structure, surrounding
Edge region is arcuate structure outwardly, and top dome 19 is arranged in corresponding planar structure.
The present invention also provides the loudspeaker arrangement of an embodiment, including the double voice coil loudspeaking component 10 of each embodiment above-mentioned,
Therefore there is same beneficial effect.The loudspeaker arrangement includes but is not limited to speaker.
Illustrate again, embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every
The equivalent structure that is made using description of the invention and accompanying drawing content or equivalent flow conversion, such as technology spy between each embodiment
That levied be combined with each other, or is directly or indirectly used in other related technical fields, all includes in the same manner to protect in the patent of the present invention
In the range of shield.
Claims (10)
1. a kind of double voice coil loudspeaking component, it is characterised in that the double voice coil loudspeaking component includes that first raises one's voice monomer and second
Raise one's voice monomer, described first raises one's voice monomer and the described second monomer of raising one's voice shares a vibrating diaphragm, the described first monomer of raising one's voice also includes
First magnetic circuit system and the first voice coil loudspeaker voice coil, the described second monomer of raising one's voice also includes the second magnetic circuit system and the second voice coil loudspeaker voice coil, described first
Voice coil loudspeaker voice coil is contained in the first magnetic gap of first magnetic circuit system, and second voice coil loudspeaker voice coil is contained in second magnetic circuit system
In second magnetic gap, first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil are connected with the vibrating diaphragm respectively.
2. double voice coil loudspeaking component according to claim 1, it is characterised in that the double voice coil loudspeaking component also includes to use
Raise one's voice monomer and the described second peripheral housing for raising one's voice monomer in housing fixing described first, the peripheral housing includes first shell
Body and the second housing, first magnetic circuit system and second magnetic circuit system are fixed on the same side of first housing, institute
State the first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil is fixed on second housing, second housing is by the outward flange pressure holding of the vibrating diaphragm
On the edge of first housing.
3. double voice coil loudspeaking component according to claim 2, it is characterised in that first magnetic circuit system includes the first magnetic
Component, second magnetic circuit system includes the second magnetic assembly, first magnetic assembly around second magnetic assembly and
With the second magnetic assembly interval setting, the region between first magnetic assembly and second magnetic assembly forms described second
Magnetic gap.
4. double voice coil loudspeaking component according to claim 2, it is characterised in that second magnetic assembly and the first shell
Body interval setting, and region between the two forms first magnetic gap.
5. double voice coil loudspeaking component according to claim 2, it is characterised in that first magnetic assembly and second magnetic
Component all includes magnet steel and magnetic conductive board, and the magnetic conductive board is arranged at the side of the direction vibrating diaphragm of the magnet steel.
6. double voice coil loudspeaking component according to claim 2, it is characterised in that second housing is offered for exposing
The opening of the vibrating diaphragm.
7. double voice coil loudspeaking component according to claim 2, it is characterised in that the double voice coil loudspeaking component is wrapped further
Shell fragment is included, the shell fragment is used for being electrically connected with first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil.
8. double voice coil loudspeaking component according to claim 1, it is characterised in that the double voice coil loudspeaking component also includes to set
The top dome being placed on the outside of the vibrating diaphragm.
9. double voice coil loudspeaking component according to claim 8, it is characterised in that the vibrating diaphragm includes central region and edge
Region, the central region is that planar structure, the marginal area is arcuate structure outwardly, and it is right that the top dome is arranged at
In the planar structure that answers.
10. a kind of loudspeaker arrangement, it is characterised in that the loudspeaker arrangement includes the double voice coil described in any one of claim 1-9
Loudspeaking component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674772.2A CN106454649A (en) | 2016-08-16 | 2016-08-16 | Double-voice-coil loudspeaking assembly and loudspeaking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674772.2A CN106454649A (en) | 2016-08-16 | 2016-08-16 | Double-voice-coil loudspeaking assembly and loudspeaking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106454649A true CN106454649A (en) | 2017-02-22 |
Family
ID=58181194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610674772.2A Pending CN106454649A (en) | 2016-08-16 | 2016-08-16 | Double-voice-coil loudspeaking assembly and loudspeaking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106454649A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851503A (en) * | 2017-03-06 | 2017-06-13 | 重庆市冠音泰科技有限公司 | A kind of electroacoustic structure of magnetic altogether |
| CN113271526A (en) * | 2021-07-21 | 2021-08-17 | 共达电声股份有限公司 | Loudspeaker |
| CN115119115A (en) * | 2022-07-26 | 2022-09-27 | 歌尔股份有限公司 | Sound generating device and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040071307A1 (en) * | 2002-10-14 | 2004-04-15 | Merry Electronics Co., Ltd. | Dual magnetic loop type receiver |
| CN201657287U (en) * | 2010-01-11 | 2010-11-24 | 瑞声声学科技(深圳)有限公司 | Double magnetic steel and double voice coil electromagnetic loudspeaker |
| WO2013036490A1 (en) * | 2011-09-06 | 2013-03-14 | Apple Inc. | Low rise speaker assembly having a dual voice coil driver |
-
2016
- 2016-08-16 CN CN201610674772.2A patent/CN106454649A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040071307A1 (en) * | 2002-10-14 | 2004-04-15 | Merry Electronics Co., Ltd. | Dual magnetic loop type receiver |
| CN201657287U (en) * | 2010-01-11 | 2010-11-24 | 瑞声声学科技(深圳)有限公司 | Double magnetic steel and double voice coil electromagnetic loudspeaker |
| WO2013036490A1 (en) * | 2011-09-06 | 2013-03-14 | Apple Inc. | Low rise speaker assembly having a dual voice coil driver |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851503A (en) * | 2017-03-06 | 2017-06-13 | 重庆市冠音泰科技有限公司 | A kind of electroacoustic structure of magnetic altogether |
| CN113271526A (en) * | 2021-07-21 | 2021-08-17 | 共达电声股份有限公司 | Loudspeaker |
| CN113271526B (en) * | 2021-07-21 | 2021-11-26 | 共达电声股份有限公司 | Loudspeaker |
| CN115119115A (en) * | 2022-07-26 | 2022-09-27 | 歌尔股份有限公司 | Sound generating device and electronic equipment |
| CN115119115B (en) * | 2022-07-26 | 2023-02-07 | 歌尔股份有限公司 | Sound generating device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216775010U (en) | Sound production device and electronic equipment | |
| WO2021174568A1 (en) | Loudspeaker | |
| US11197098B2 (en) | Speaker | |
| KR20080112166A (en) | High efficient miniature electro-acoustic transducer with reduced dimensions | |
| CN106303857A (en) | Double diaphragm loudspeaking component and loudspeaker arrangement | |
| US9706310B2 (en) | Acoustic device | |
| WO2020134346A1 (en) | Sound generating device | |
| WO2021174569A1 (en) | Loudspeaker | |
| CN106454649A (en) | Double-voice-coil loudspeaking assembly and loudspeaking apparatus | |
| US20200314548A1 (en) | Speaker | |
| CN208590113U (en) | Mini-sound device | |
| KR101208243B1 (en) | Slim type speaker and magnetic circuit for it | |
| CN102300147A (en) | Micro-speaker of an amplifier-mounting type | |
| US9282410B2 (en) | Transducer motor structure with enhanced flux | |
| JP6667364B2 (en) | Flat speaker and method for improving its frequency characteristics | |
| US11109160B2 (en) | Speaker | |
| CN109587609B (en) | Sound producing device | |
| CN1554210A (en) | An electro-acoustic transducer with two diaphragms | |
| KR100965740B1 (en) | Ultra slim type acoustic transducer | |
| CN102316401A (en) | Multi-function micro speaker | |
| CN206506703U (en) | A kind of electroacoustic structure of magnetic altogether | |
| CN214429699U (en) | Horn type loudspeaker | |
| US9807510B2 (en) | Transducer | |
| KR20040080701A (en) | Speaker | |
| CN220965131U (en) | Miniature loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |