CN105307252A - Positioning signal transmitting method and device - Google Patents
Positioning signal transmitting method and device Download PDFInfo
- Publication number
- CN105307252A CN105307252A CN201510799188.5A CN201510799188A CN105307252A CN 105307252 A CN105307252 A CN 105307252A CN 201510799188 A CN201510799188 A CN 201510799188A CN 105307252 A CN105307252 A CN 105307252A
- Authority
- CN
- China
- Prior art keywords
- time interval
- target
- framing signal
- confirmed
- time
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/285—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the mobility of the user
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a positioning signal transmitting method and device, applied to a positioning tag. The method comprises the following steps: determining the motion state of an object to be positioned; transmitting a positioning signal at the first time interval while determining that the object to be positioned moves; and transmitting the positioning signal at the second time interval while determining that the object to be positioned is stationary, wherein the second time interval is more than the first time interval. By means of the positioning signal transmitting method and device disclosed by the invention, the purpose of further reducing power consumption is achieved while the positioning real-time performance and the positioning precision are satisfied.
Description
Technical field
The application relates to network communication technology field, particularly relates to a kind of framing signal launching technique and device.
Background technology
Navigation system is made up of locating base station and positioning label.Positioning label externally sends framing signal, and locating base station receives framing signal, and according to the position of framing signal compute location label, thus realize the location to the people or thing that carry positioning label.
Positioning label in navigation system adopts powered battery usually, in order to extend power supply duration, must take low-power consumption measure.At present, the low-power consumption measure generally adopted is: reduce framing signal tranmitting frequency, reduce transmitting power etc.But tranmitting frequency and transmitting power can not unrestrictedly reduce, otherwise, will real-time and the precision of navigation system location be affected.
Summary of the invention
In view of this, the application provides a kind of framing signal launching technique and device.
Particularly, the application is achieved by the following technical solution:
The application provides a kind of framing signal launching technique, and be applied on positioning label, the method comprises:
Determine the motion state of target to be positioned;
When determining described target travel to be positioned, launch framing signal with very first time interval;
When determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
The application also provides a kind of framing signal emitter, is applied on positioning label, and this device comprises:
Status determining unit, for determining the motion state of target to be positioned;
First transmitter unit, for when determining described target travel to be positioned, launches framing signal with very first time interval;
Second transmitter unit, for when determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
Described as can be seen from above, the application, by the motion state of perception target to be positioned, when target to be positioned is static, launches framing signal with lower tranmitting frequency; When target travel to be positioned, launch framing signal with normal transmission frequency.Because target to be positioned is longer for usual quiescent time, therefore, while satisfied location real-time and positioning precision, the object reducing power consumption further can be reached by the application.
Accompanying drawing explanation
Fig. 1 is the navigation system schematic diagram shown in the application one exemplary embodiment;
Fig. 2 is a kind of framing signal launching technique flow chart shown in the application one exemplary embodiment;
Fig. 3 is the underlying hardware structural representation of a kind of framing signal emitter place equipment shown in the application one exemplary embodiment;
Fig. 4 is the structural representation of a kind of framing signal emitter shown in the application one exemplary embodiment.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Execution mode described in following exemplary embodiment does not represent all execution modes consistent with the application.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that some aspects of the application are consistent.
Only for describing the object of specific embodiment at term used in this application, and not intended to be limiting the application." one ", " described " and " being somebody's turn to do " of the singulative used in the application and appended claims is also intended to comprise most form, unless context clearly represents other implications.It is also understood that term "and/or" used herein refer to and comprise one or more project of listing be associated any or all may combine.
Term first, second, third, etc. may be adopted although should be appreciated that to describe various information in the application, these information should not be limited to these terms.These terms are only used for the information of same type to be distinguished from each other out.Such as, when not departing from the application's scope, the first information also can be called as the second information, and similarly, the second information also can be called as the first information.Depend on linguistic context, word as used in this " if " can be construed as into " ... time " or " when ... time " or " in response to determining ".
Figure 1 shows that a kind of navigation system schematic diagram.Wherein, navigation system 100 is made up of locating base station 200 and positioning label 300.Positioning label 300 externally sends framing signal, and locating base station 200 receives the framing signal that positioning label 300 sends, and according to the position of this framing signal compute location label 300.Utilize this location technology can to position the target to be positioned (people such as, in mine or thing) of carrying positioning label 300.
Positioning label in navigation system adopts powered battery usually, in order to extend power supply duration, must take low-power consumption measure.At present, the low-power consumption measure generally adopted is: reduce framing signal tranmitting frequency (launching framing signal with the fixed cycle), reduce transmitting power etc.But tranmitting frequency and transmitting power can not unrestrictedly reduce, otherwise, will real-time and the precision of navigation system location be affected.
For the problems referred to above, the embodiment of the present application proposes a kind of framing signal launching technique, and the method, by the motion state of perception target to be positioned, when target to be positioned is static, launches framing signal with lower tranmitting frequency; When target travel to be positioned, launch framing signal with normal transmission frequency.
See Fig. 2, be an embodiment flow chart of the application's framing signal launching technique, this embodiment is described framing signal emission process.
Step 201, determines the motion state of target to be positioned.
In the embodiment of the present application, positioning label needs the tranmitting frequency determining framing signal according to the motion state of target to be positioned, so first positioning label needs the motion state determining target to be positioned.
In one preferably execution mode, by increasing acceleration transducer in positioning label, utilize the motion state of acceleration transducer perception target to be positioned.In order to reach the object of reducing power consumption, can low-power consumption sensor be selected, such as, MEMS (Micro-Electro-MechanicalSystem, MEMS (micro electro mechanical system)) acceleration transducer.Certainly, the application do not get rid of other can the device of perception target state to be positioned.
Still for acceleration transducer, concrete deterministic process is: the threshold value arranging acceleration transducer, such as, can arrange the three dimensional door limit value G of acceleration transducer
x, G
y,g
zbe G
1.The accekeration of the target to be positioned detected when acceleration transducer is greater than this threshold value, and (such as, any one dimension is greater than G
1) time, determine target travel to be positioned, otherwise, determine that target to be positioned is static.
When specific implementation, by arranging the interrupt function of acceleration transducer, make acceleration transducer when determining target travel to be positioned, Trigger processor launches framing signal according to the motion state of target to be positioned.
Step 202, when determining described target travel to be positioned, launches framing signal with very first time interval.
The very first time in the embodiment of the present application can meet the framing signal transmission interval of locating real-time and positioning accuracy request under being spaced apart target state to be positioned, such as, arranging the very first time is spaced apart 10 seconds, namely, under target state to be positioned, positioning label can meet for interval sends framing signal the location requirement that navigation system is target to be positioned with 10 seconds.
Step 203, when determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
Second time interval in the embodiment of the present application be target to be positioned static time framing signal transmission interval, can determine for second time interval according to following processing procedure.
Be specially, obtain the time interval upper limit and time difference preset.The embodiment of the present application takes the progressively mode of going forward one by one to extend the transmission interval of framing signal under inactive state.But in order to ensure that the real-time of framing signal and precision also cannot indefinite extension, therefore, the embodiment of the present application is provided with the time interval upper limit, i.e. the maximum time interval launched of signal, and the time variation amount of at every turn going forward one by one (time difference).
Ask for the last time interval when launching framing signal and time difference with, as the time interval to be confirmed.Judge whether this time interval to be confirmed is greater than the time interval upper limit, in limited time upper when this time interval interval greater than presetting to be confirmed, illustrate that signal transmission interval reaches maximum time interval, cannot extend again, now, framing signal is launched using the time interval upper limit as second time interval; Be not more than the time interval above in limited time when the time interval to be confirmed, launch framing signal using the time interval to be confirmed as second time interval.
Such as, suppose that the prefixed time interval upper limit is 10 minutes, the very first time is spaced apart 10 seconds, and time difference is 5 seconds.Then when target travel to be positioned, with 10 seconds for the cycle sends framing signal; When target to be positioned is static, suppose that the time interval of this time launching framing signal is 10 seconds, then Transmission Time Interval (second time interval) next time can be set to 10 seconds+5 seconds=15 seconds, by that analogy, if target to be positioned remains static always, then second time interval be followed successively by 20 seconds, 25 seconds ... until the time interval upper limit (10 minutes), no longer extend.If target to be positioned becomes motion from static, then recover with 10 seconds for periodic emission framing signal.
As can be seen from foregoing description, the application, compared with prior art, no longer adopts the fixed cycle to launch framing signal, but according to the motion state of target to be positioned, takes the different transmitting cycles.Wherein, when target to be positioned remains static, launch the cycle, farthest to reduce power consumption by constantly extending signal; And when target travel to be positioned, recover to launch the cycle normally, with the requirement of satisfied location real-time and positioning precision.
Corresponding with the embodiment of aforementioned framing signal launching technique, present invention also provides the embodiment of framing signal emitter.
The embodiment of the application's framing signal emitter can be applied on positioning label.Device embodiment can pass through software simulating, also can be realized by the mode of hardware or software and hardware combining.For software simulating, as the device on a logical meaning, be that computer program instructions corresponding in the processor run memory by its place equipment is formed.Say from hardware view, as shown in Figure 3, for a kind of hardware structure diagram of the application's framing signal emitter place equipment, except the processor shown in Fig. 3, network interface and memory, in embodiment, the equipment at device place is usually according to the actual functional capability of this equipment, other hardware can also be comprised, this is repeated no more.
Please refer to Fig. 4, is the structural representation of the framing signal emitter in the application's embodiment.This framing signal emitter comprises status determining unit 401, first transmitter unit 402 and the second transmitter unit 403, wherein:
Status determining unit 401, for determining the motion state of target to be positioned;
First transmitter unit 402, for when determining described target travel to be positioned, launches framing signal with very first time interval;
Second transmitter unit 403, for when determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
Further,
Described status determining unit 401, specifically for adopting the motion state of target to be positioned described in acceleration transducer perception.
Further,
Described status determining unit 401, specifically for arranging the threshold value of acceleration transducer; When the accekeration of the target described to be positioned that described acceleration transducer detects is greater than described threshold value, determine described target travel to be positioned, otherwise, determine that described target to be positioned is static.
Further,
Described second transmitter unit 403, specifically for obtaining the default time interval upper limit and time difference; Ask for the last time interval when launching framing signal and described time difference with, as the time interval to be confirmed; Judge whether the described time interval to be confirmed is greater than the described time interval upper limit; When described to be confirmed in limited time upper interval greater than the described time interval, launch framing signal using the described time interval upper limit as second time interval; Be not more than the described time interval above in limited time when the described time interval to be confirmed, launch framing signal using the described time interval to be confirmed as second time interval.
In said apparatus, the implementation procedure of the function and efficacy of unit specifically refers to the implementation procedure of corresponding step in said method, does not repeat them here.
For device embodiment, because it corresponds essentially to embodiment of the method, so relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the application's scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The foregoing is only the preferred embodiment of the application, not in order to limit the application, within all spirit in the application and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.
Claims (8)
1. a framing signal launching technique, be applied on positioning label, it is characterized in that, the method comprises:
Determine the motion state of target to be positioned;
When determining described target travel to be positioned, launch framing signal with very first time interval;
When determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
2. the method for claim 1, is characterized in that, the described motion state determining target to be positioned, comprising:
Adopt the motion state of target to be positioned described in acceleration transducer perception.
3. method as claimed in claim 2, it is characterized in that, the motion state of target to be positioned described in the perception of described employing acceleration transducer, comprising:
The threshold value of acceleration transducer is set;
When the accekeration of the target described to be positioned that described acceleration transducer detects is greater than described threshold value, determine described target travel to be positioned, otherwise, determine that described target to be positioned is static.
4. the method as described in as arbitrary in claims 1 to 3, is characterized in that, describedly launches framing signal with second time interval, comprising:
Obtain the time interval upper limit and time difference preset;
Ask for the last time interval when launching framing signal and described time difference with, as the time interval to be confirmed;
Judge whether the described time interval to be confirmed is greater than the described time interval upper limit;
When described to be confirmed in limited time upper interval greater than the described time interval, launch framing signal using the described time interval upper limit as second time interval;
Be not more than the described time interval above in limited time when the described time interval to be confirmed, launch framing signal using the described time interval to be confirmed as second time interval.
5. a framing signal emitter, is applied on positioning label, it is characterized in that, this device comprises:
Status determining unit, for determining the motion state of target to be positioned;
First transmitter unit, for when determining described target travel to be positioned, launches framing signal with very first time interval;
Second transmitter unit, for when determining that described target to be positioned is static, launch framing signal with second time interval, described second interval greater than described very first time interval.
6. device as claimed in claim 5, is characterized in that:
Described status determining unit, specifically for adopting the motion state of target to be positioned described in acceleration transducer perception.
7. device as claimed in claim 6, is characterized in that:
Described status determining unit, specifically for arranging the threshold value of acceleration transducer; When the accekeration of the target described to be positioned that described acceleration transducer detects is greater than described threshold value, determine described target travel to be positioned, otherwise, determine that described target to be positioned is static.
8. the device as described in as arbitrary in claim 5 to 7, is characterized in that:
Described second transmitter unit, specifically for obtaining the default time interval upper limit and time difference; Ask for the last time interval when launching framing signal and described time difference with, as the time interval to be confirmed; Judge whether the described time interval to be confirmed is greater than the described time interval upper limit; When described to be confirmed in limited time upper interval greater than the described time interval, launch framing signal using the described time interval upper limit as second time interval; Be not more than the described time interval above in limited time when the described time interval to be confirmed, launch framing signal using the described time interval to be confirmed as second time interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799188.5A CN105307252A (en) | 2015-11-18 | 2015-11-18 | Positioning signal transmitting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799188.5A CN105307252A (en) | 2015-11-18 | 2015-11-18 | Positioning signal transmitting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105307252A true CN105307252A (en) | 2016-02-03 |
Family
ID=55203871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510799188.5A Pending CN105307252A (en) | 2015-11-18 | 2015-11-18 | Positioning signal transmitting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105307252A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101997A (en) * | 2016-05-26 | 2016-11-09 | 深圳市万语网络科技有限公司 | A kind of localization method and alignment system with automatically adjusting location frequency |
| CN107277900A (en) * | 2017-05-12 | 2017-10-20 | 深圳市康凯斯信息技术有限公司 | A kind of energy saving method and system of shared bicycle electronic lock |
| CN109613576A (en) * | 2018-12-18 | 2019-04-12 | 江苏满运软件科技有限公司 | Trailer location information method for uploading, device, electronic equipment, storage medium |
| CN111045044A (en) * | 2019-10-14 | 2020-04-21 | 广东星舆科技有限公司 | Control method, device and medium for high-precision positioning |
| CN111278105A (en) * | 2020-05-08 | 2020-06-12 | 腾讯科技（深圳）有限公司 | Wireless network positioning method and related device |
| CN111556435A (en) * | 2020-05-08 | 2020-08-18 | 辽宁瑞华实业集团高新科技有限公司 | Low-power-consumption positioning device |
| CN111669700A (en) * | 2020-05-22 | 2020-09-15 | 珠海格力电器股份有限公司 | Positioning data processing method and device, electronic equipment and storage medium |
| CN114295131A (en) * | 2020-10-07 | 2022-04-08 | 广达电脑股份有限公司 | Electronic device with gravity sensor auxiliary positioning |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076082A (en) * | 2010-11-19 | 2011-05-25 | 厦门雅迅网络股份有限公司 | Dynamic self-adaptive base station positioning method |
| CN103402176A (en) * | 2013-07-31 | 2013-11-20 | 深圳市中兴移动通信有限公司 | Method and device for dynamically adjusting positioning period |
| CN104750224A (en) * | 2013-12-27 | 2015-07-01 | 中国科学院沈阳自动化研究所 | Mobile device having positioning energy-saving function |
-
2015
- 2015-11-18 CN CN201510799188.5A patent/CN105307252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076082A (en) * | 2010-11-19 | 2011-05-25 | 厦门雅迅网络股份有限公司 | Dynamic self-adaptive base station positioning method |
| CN103402176A (en) * | 2013-07-31 | 2013-11-20 | 深圳市中兴移动通信有限公司 | Method and device for dynamically adjusting positioning period |
| CN104750224A (en) * | 2013-12-27 | 2015-07-01 | 中国科学院沈阳自动化研究所 | Mobile device having positioning energy-saving function |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101997A (en) * | 2016-05-26 | 2016-11-09 | 深圳市万语网络科技有限公司 | A kind of localization method and alignment system with automatically adjusting location frequency |
| CN106101997B (en) * | 2016-05-26 | 2019-07-30 | 深圳市万语网络科技有限公司 | A kind of localization method and positioning system with adjust automatically location frequency |
| CN107277900A (en) * | 2017-05-12 | 2017-10-20 | 深圳市康凯斯信息技术有限公司 | A kind of energy saving method and system of shared bicycle electronic lock |
| CN109613576A (en) * | 2018-12-18 | 2019-04-12 | 江苏满运软件科技有限公司 | Trailer location information method for uploading, device, electronic equipment, storage medium |
| CN109613576B (en) * | 2018-12-18 | 2021-03-16 | 江苏满运物流信息有限公司 | Trailer position information uploading method and device, electronic equipment and storage medium |
| CN111045044A (en) * | 2019-10-14 | 2020-04-21 | 广东星舆科技有限公司 | Control method, device and medium for high-precision positioning |
| CN111278105A (en) * | 2020-05-08 | 2020-06-12 | 腾讯科技（深圳）有限公司 | Wireless network positioning method and related device |
| CN111556435A (en) * | 2020-05-08 | 2020-08-18 | 辽宁瑞华实业集团高新科技有限公司 | Low-power-consumption positioning device |
| CN111669700A (en) * | 2020-05-22 | 2020-09-15 | 珠海格力电器股份有限公司 | Positioning data processing method and device, electronic equipment and storage medium |
| CN114295131A (en) * | 2020-10-07 | 2022-04-08 | 广达电脑股份有限公司 | Electronic device with gravity sensor auxiliary positioning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105307252A (en) | Positioning signal transmitting method and device | |
| US10732696B2 (en) | Method and apparatus for wake-up control of intelligent terminal | |
| WO2016188260A1 (en) | Communication message sending method and device | |
| KR20170138667A (en) | Method for activating application and electronic device supporting the same | |
| CN106874077B (en) | Process running method and device | |
| CN107003781B (en) | Method for controlling touch screen and electronic device supporting same | |
| KR102511695B1 (en) | Position determination based on transmission of beacon signals to activated devices | |
| CN106293076A (en) | Communication terminal and intelligent terminal's gesture identification method and device | |
| US10410129B2 (en) | User pattern recognition and prediction system for wearables | |
| KR20150080446A (en) | Method, apparatus, equipment and system for controlling turn-on and turn-off of wireless network | |
| EP3323037B1 (en) | System and method for double knuckle touch screen control | |
| CN111526581B (en) | User positioning method, network element, system and storage medium | |
| WO2018166204A1 (en) | Method for controlling fingerprint recognition module, and mobile terminal and storage medium | |
| CN105740145A (en) | Method and device for locating element in control | |
| CN110166519A (en) | A kind of method and relevant apparatus of synchronizing information | |
| CN108920085B (en) | Information processing method and device for wearable device | |
| CN108139899A (en) | Terminal device and the method for control charging | |
| CN109117037B (en) | Image processing method and terminal equipment | |
| EP2693301A1 (en) | Method and apparatus for identifying the posture of an object using ultrasonic waves | |
| CN104796166B (en) | A kind of wireless accessory awakening method and wireless accessory | |
| CN113615154A (en) | Sensor module for user equipment | |
| CN111104012B (en) | Distance measuring method and device, storage medium and terminal equipment | |
| US10420058B2 (en) | Data-driven sensor configuration and information processing | |
| CN109463002A (en) | To the method, device and equipment of queue storing data | |
| CN106774323A (en) | Obstruction-avoiding control system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
|
| RJ01 | Rejection of invention patent application after publication |