CN102253821A - Data transmission processing method in ultrasonic diagnostic equipment - Google Patents

Data transmission processing method in ultrasonic diagnostic equipment Download PDF

Info

Publication number
CN102253821A
CN102253821A CN2011100905611A CN201110090561A CN102253821A CN 102253821 A CN102253821 A CN 102253821A CN 2011100905611 A CN2011100905611 A CN 2011100905611A CN 201110090561 A CN201110090561 A CN 201110090561A CN 102253821 A CN102253821 A CN 102253821A
Authority
CN
China
Prior art keywords
data
buffer area
sub
ultrasonic diagnostic
buffer
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
Application number
CN2011100905611A
Other languages
Chinese (zh)
Inventor
傅勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Landwind Industry Co Ltd
Original Assignee
Shenzhen Landwind Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Landwind Industry Co Ltd filed Critical Shenzhen Landwind Industry Co Ltd
Priority to CN2011100905611A priority Critical patent/CN102253821A/en
Publication of CN102253821A publication Critical patent/CN102253821A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

The invention discloses a data transmission processing method in ultrasonic diagnostic equipment. The method comprises the following steps of: dividing a data buffer area into a plurality of sub-buffer areas, and packaging the plurality of sub-buffer areas into a first in first out (FIFO) storage; storing each data unit correspondingly acquired by each scanning line in the sub-buffer areas according to a scanning sequence by taking a scanning line as a unit; and when the number of data units stored in a sub-buffer area reaches a preset value or waiting time reaches a preset value, starting transmission once, packing the data units stored in the sub-buffer area into data packets for uploading, and caching data units from front scanning equipment in the next sub-buffer area. The processing method is simple, reliable, easy to implement, and favorable for improving the stability and reliability of an ultrasonic diagnostic system.

Description

The disposal route of data transmission in a kind of ultrasonic diagnostic equipment
Technical field
The present invention relates to a kind of data transmission method, the disposal route of data transmission in especially a kind of ultrasonic diagnostic equipment.
Background technology
In compuscan, in order to satisfy different diagnostic requirements, designed different scan types, such as B scans (black white image scanning), C scanning (coloured image scanning), D scans (Doppler scanning).In the Ultrasonic Diagnosis process, needs according to different diagnosis, designed different mode of operations, a certain moment compuscan only is under a certain mode of operation, for a certain mode of operation, need the scanning of a certain type or certain several types, be used to generate data of different types, these data of different types can be used for the demonstration of dissimilar images, but between the dissimilar images of these same patterns certain relation is arranged again, these relations comprise integrality, real-time, synchronism, transient state etc.
For example in the BC scan pattern, common matching in order to ensure image, B image and C image have certain frame per second relation at the scanning end, as a rule frame per second all equates, in order to guarantee also to equate at the display frame rate of display end, just need guarantee that the BC image all can not have any losing, otherwise can't match demonstration; In addition, in the BC scan pattern, if untimely transmission of ultrasound data and demonstration, the time-delay phenomenon in the time of then can causing diagnosis, special under the situation of probe movement, the performance meeting of time-delay is more obvious, will influence diagnosis; In the BD scan pattern, the B image is showing the moving image of heart, and the D image is showing the movement velocity of cardiac flow, need certain synchronized relation so between them, promptly when the B image was seen heart contraction, the D image should see that the jet velocity of blood flow is strengthening, i.e. synchronism; Need between the scan pattern in the compuscan to switch, for example enter the BC pattern from the B pattern, mode switch then means the switching of scanning, also mean the interruption and the variation of scanning, in the process of this variation, how to guarantee the promptness switched, the integrality of data, synchronism etc. are bigger challenges.
Existing compuscan is in order to ensure these numerous requirements, usually all separately consider, the method of guaranteeing synchronism is for example arranged, the little method or the like of delaying time of guaranteeing is arranged, and because the diversity of ultrasonic scanning, these methods are more complicated all, for example in the BC pattern, in order to ensure integrality, the BC image is matched transmission, if transmission again after promptly the B that a frame is complete and the complete C of a frame have all satisfied.But in the time of will causing frame per second low like this stand-by period longer, it is bigger to delay time; Existing system is in order to ensure the synchronism of image, usually add various marks at the scanning end, remove to recover the synchronized relation of image at display end according to these marks, when this mode is switched in scanning, when between many scan types, switching especially, every kind of scan type all will be stamped independently mark, software is judged according to the mark of front and back, recovers the synchronized relation between the different mode, because mode switch reaches hundreds of, therefore need to handle hundreds of situations, very easily make mistakes.
Existing disposal route has carried out distinguishing (dividing different buffer areas) to different scan patterns when storing, but has carried out association again when transmission, causes the processing more complicated, easily obliterated data.Because the ultrasonic system scan type is many, pattern is many, and therefore existing disposal route will go to design at each details, causes system complexity to improve, and system stability reduces.Existing system mates transmission manner again to data of different types, and under the lower situation of frame per second, the time-delay that image shows is bigger.Because the ultrasonic system scan pattern is various, in some cases, it is very difficult that existing system will recover to scan the precedence relationship of holding at display end, and the processing of system is also very complicated, usually the bad various instability problems that cause image of some treatment of details.Under peacekeeping two dimension mixed sweep pattern, the two dimensional image frame per second may be very low, if cause adopting the method for related transmission, to same two dimensional image, corresponding one-dimensional data amount is very big, if by waiting for that the mode that two-dimensional frames is uploaded completely again will cause the time-delay of one dimension image excessive.
Summary of the invention
The present invention proposes the disposal route of data transmission in a kind of ultrasonic diagnostic equipment, solves in the present compuscan because the variation of scan mode and the frequency between the mode switch cause ultrasound data transmission course more complicated, data are lost easily and data sync is relatively poor technical matters.
The present invention adopts following technical scheme to realize: the disposal route of data transmission in a kind of ultrasonic diagnostic equipment, and it comprises step: data buffer area is divided into the experimental process buffer area, described experimental process buffer area is encapsulated as a FIFO storer; Each data cell that is unit with the sweep trace, according to scanning sequency each sweep trace correspondence is obtained is stored to described sub-buffer area; When the quantity of the data cell of storing in the sub-buffer area reaches preset value, start once transmission, the data cell of storing in this sub-buffer area is packaged into packet uploads, will buffer into next sub-buffer area simultaneously from the data cell of front end scanning device.
Wherein, each sub-buffer area can be stored the data cell of some, according to the principle of first-in first-out each sub-buffer area is read and write data, and adopts table tennis to switch cache way between the sub-buffer area and carry out data read-write operation.
Wherein, the FIFO storer comprises a write pointer, a read pointer, a null pointer and a full pointer.
Wherein, when the front end scanning device was operated in the scan pattern of one dimension image, each data cell buffer memory to the sub-buffer area with a plurality of sweep trace correspondences are obtained was packaged into packet then and carries out data upload.
Wherein, when the front end scanning device is operated in the scan pattern of two dimensional image,, is packaged into packet then and carries out data upload constituting a plurality of data cell buffer memorys to sub-buffer area of whole frame two dimensional image.
Wherein, when the front end scanning device is operated in the mixed sweep pattern of one dimension image and two dimensional image, with the data cell of one dimension image with constitute a plurality of data cell buffer memorys to sub-buffer area in the two dimensional image, is packaged into packet then and carries out data upload; Set a stand-by period, when through after the stand-by period, when the quantity of the data cell of described sub-buffer area storage does not also reach described preset value, the data cell of the storage of described sub-buffer area is packaged into packet carries out data upload.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts and does not distinguish scan type, with the sweep trace is unit, directly various types of images are write data buffer area successively in regular turn according to scanning sequency, and carry out data transmission manner with FIFO mechanism according to this buffer memory order, because therefore the ruined problem of synchronism can not appear in the order when having kept scanning during data transmission.In addition, the present invention can control the data packets for transmission size flexibly one time, reaches the mode of the smooth purpose that shows of various mode image homomergic flows, has solved the not corresponding problem that causes the one dimension image to produce time-delay of one dimension image and two dimensional image.Disposal route of the present invention is simple and reliable, realizes helping improving the stability and the reliability of compuscan easily.
Description of drawings
Fig. 1 is the module diagram of compuscan.
Fig. 2 is a realization flow synoptic diagram of the present invention.
Fig. 3 is the pointer structure synoptic diagram of FIFO storer.
Fig. 4 is the data structure synoptic diagram of ultrasound data packet when uploading.
Embodiment
The module diagram of compuscan as shown in Figure 1, compuscan mainly comprises: main control module; The all transmitter module that is connected with main control module, receiver module, data processing module, data transmission module, processor and display module.
The present invention is a kind of innovation and creation that computer program is realized that relate to, and is applied in the data transmission module in the compuscan, is used to solve ultrasound data is transferred to processor by other hardware processing module process.Because the speed that ultrasound data is handled changes, it depends on and sweep speed, and is inconsistent with the interface processing speed of processor, so at data transmission module metadata cache must be set.Therefore, the difference of the various method for transmission processing of ultrasound data mainly just is embodied in the organizational form and the processing mode of metadata cache.
In view of the present invention is that unit carries out data storage according to sweep trace fully, also carry out data storage according to scanning sequency fully, therefore, for convenience, the scan-data or the ultrasound data of an a line/sweep trace correspondence is called a data unit.
As shown in Figure 2, the present invention includes following performing step:
Step S11: the present invention is divided into the experimental process buffer area to the data buffer area in the data transmission module, and this a little buffer area is encapsulated as a FIFO(First Input First Output, First Input First Output) storer is according to the FIFO mechanism works.
Adopting FIFO mechanism is in order to reduce the requirement of data transmission module to real-time, to improve transmission reliability.
Each sub-buffer area can be stored the data cell of some, principle according to first-in first-out reads and writes data to each sub-buffer area, and guarantee that the two does not operate same sub-buffer area simultaneously, in fact also can switch cache way with table tennis, table tennis is special FIFO cache way, be that the degree of depth is 2 FIFO cache way, ping-pong buffer need will read the data in the sub-buffer area at least before two sub-buffer areas are write completely, therefore for there not being response in time to read may make mistakes under the situation of cache request.
All sub-buffer areas (that is: data buffer area) are encapsulated as a FIFO, and the FIFO cache way needs a write pointer, a read pointer, a null pointer and a full pointer, as shown in Figure 3.Under situation working properly, it is full to guarantee that by full pointer FIFO can not write, otherwise, will cause FIFO to overflow and loss of data.In addition, the capacity of the size of the storage depth of FIFO and each buffer area and buffer memory is relevant.
Step S12: determine that according to scan pattern with N data unit (N for more than or equal to 1 positive integer) is that unit carries out data transmission, touch log-on data during buffer memory N data unit in the promptly definite sub-buffer area and upload.
Step S13: be unit with the sweep trace, the ultrasound data (being data cell) of each sweep trace correspondence stored according to scanning sequency.
Each sub-buffer area is stored a certain amount of view data, and the size of sub-buffer area can be controlled flexibly, does not need continuous storage with a kind of image, is unit with the sweep trace, according to scanning sequency the data cell of each sweep trace correspondence is stored.
Wherein, the ultrasound data that the scanning of 1 sweep trace produces be 1 line/a dimensional data image, promptly data unit is a dimensional data image.
Step S14: when the quantity of the data cell of storing in the sub-buffer area reaches N, begin to start once transmission, data buffer area continues to preserve the data of input simultaneously, deposits next sub-buffer area in.
Under one dimension image and two dimensional image mixed sweep pattern, the present invention effectively solves by the following method and produces the excessive problem of transmission delay between one dimension image and the two dimensional image:
1,,, under the one dimension image model, a lot of line one dimension organizing image datas together, is uploaded to processor in order to improve transfer efficiency because the data volume of a line one dimensional data image is smaller.That is: be that unit is uploaded to processor with a plurality of data cells.
2, only be operated under the scan pattern of two dimensional image at the front end scanning device, two-dimensional image data is also pressed mode buffer memory and the transmission of above-mentioned steps S12 and S14 according to the mode of line, and whether whole can control frame flexibly uploads (if a frame two dimensional image is made of the scanning result of X sweep trace, so, only need once upload X data unit, promptly realize the X-Y scheme data upload of whole frame).
3, under front end scanning device working group syntype, existing two-dimensional image data, one dimensional data image is arranged again, in this case, if guaranteeing the whole frame of two dimensional image again uploads, under the lower situation of frame per second, bigger time-delay will appear in the one dimension image, so in such cases, the quantity of at first definite data cell of once uploading, with the data cell of one dimension image with constitute in the two dimensional image a plurality of data cells and be packaged as a packet and carry out data upload, the order of data cell also is uncertain, and unique what will guarantee is exactly the integrality of data cell quantity; Secondly, bigger time-delay appears for fear of the one dimension image, also need to determine the time of a wait, if arrive certain stand-by period, the data cell of storing in the sub-buffer area does not also reach when triggering the data cell quantity of uploading, also need to upload in this sub-buffer area data in buffer, this is under the situation of some system exception, does not still have the phenomenon of losing data and takes place at once.
In addition, under integrated mode, the time relationship of one dimensional data image and two-dimensional image data, do not need to carry out again special processing, only need enter order before each sub-buffer area by each data cell that constitutes one dimension image and two dimensional image and transmit and get final product, promptly dissimilar images is in the precedence unanimity of buffer memory front and back.
And, consider that the input mode and the sequential of data in the data buffer area depends on the front end scanning device, so the present invention adopts the mode of continuous storage, can guarantee that the time relationship of image is not destroyed.
As shown in Figure 4, the content of the packet that is transferred to is relevant with image model and sweep parameter, but its structure is all the same, all comprises packet header and the end of a thread two parts.Such as, under the B+BM+CM pattern, packet structure is as follows: packet by packet header and N bar line data B Line0, BM Line1, B Line1 ..., B LineX forms.N bar line writes packet continuously according to time sequencing, article one line up front, N bar line is face in the end.Wherein, B Line0 represents the data cell of the 1st sweep trace correspondence under the B scan pattern, and BM LineX represents the data cell of X+1 bar sweep trace correspondence under the BM scan pattern, and other are analogized.
To sum up, the present invention adopts and does not distinguish scan type, with the sweep trace is unit, directly various types of images are write data buffer area successively in regular turn according to scanning sequency, and carry out data transmission manner with FIFO mechanism according to this buffer memory order, because therefore the ruined problem of synchronism can not appear in the order when having kept scanning during data transmission.In addition, the present invention can control the data packets for transmission size flexibly one time, reaches the mode of the smooth purpose that shows of various mode image homomergic flows, has solved the not corresponding problem that causes the one dimension image to produce time-delay of one dimension image and two dimensional image.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. the disposal route of data transmission in the ultrasonic diagnostic equipment is characterized in that, comprises step:
Data buffer area is divided into the experimental process buffer area, described experimental process buffer area is encapsulated as a FIFO storer;
Each data cell that is unit with the sweep trace, according to scanning sequency each sweep trace correspondence is obtained is stored to described sub-buffer area;
When the quantity of the data cell of storing in the sub-buffer area reaches preset value, start once transmission, the data cell of storing in this sub-buffer area is packaged into packet uploads, will buffer into next sub-buffer area simultaneously from the data cell of front end scanning device.
2. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 1, it is characterized in that, each sub-buffer area can be stored the data cell of some, principle according to first-in first-out reads and writes data to each sub-buffer area, and adopts table tennis to switch cache way between the sub-buffer area and carry out data read-write operation.
3. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 1, it is characterized in that the FIFO storer comprises a write pointer, a read pointer, a null pointer and a full pointer.
4. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 1, it is characterized in that, when the front end scanning device is operated in the scan pattern of one dimension image, each data cell buffer memory to sub-buffer area with a plurality of sweep trace correspondences are obtained is packaged into packet then and carries out data upload.
5. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 1, it is characterized in that, when the front end scanning device is operated in the scan pattern of two dimensional image, with constituting a plurality of data cell buffer memorys to sub-buffer area of whole frame two dimensional image, be packaged into packet then and carry out data upload.
6. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 1, it is characterized in that, when the front end scanning device is operated in the mixed sweep pattern of one dimension image and two dimensional image, with the data cell of one dimension image with constitute a plurality of data cell buffer memorys to sub-buffer area in the two dimensional image, be packaged into packet then and carry out data upload.
7. according to the disposal route of data transmission in the described ultrasonic diagnostic equipment of claim 6, it is characterized in that, also comprise: set a stand-by period, after the process stand-by period, when the quantity of the data cell of described sub-buffer area storage does not also reach described preset value, the data cell of the storage of described sub-buffer area is packaged into packet carries out data upload.
CN2011100905611A 2011-04-12 2011-04-12 Data transmission processing method in ultrasonic diagnostic equipment Pending CN102253821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100905611A CN102253821A (en) 2011-04-12 2011-04-12 Data transmission processing method in ultrasonic diagnostic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100905611A CN102253821A (en) 2011-04-12 2011-04-12 Data transmission processing method in ultrasonic diagnostic equipment

Publications (1)

Publication Number Publication Date
CN102253821A true CN102253821A (en) 2011-11-23

Family

ID=44981104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100905611A Pending CN102253821A (en) 2011-04-12 2011-04-12 Data transmission processing method in ultrasonic diagnostic equipment

Country Status (1)

Country Link
CN (1) CN102253821A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501353A (en) * 2013-10-23 2014-01-08 北京经纬恒润科技有限公司 Data relay transmission method, device and system
CN103561041A (en) * 2013-11-15 2014-02-05 深信服网络科技(深圳)有限公司 SSL new connection processing method and device
CN104408055A (en) * 2014-10-29 2015-03-11 中国石油天然气股份有限公司 Storage method and device for laser radar point cloud data
CN106973188A (en) * 2017-04-11 2017-07-21 北京图森未来科技有限公司 A kind of image transmission and method
CN109171806A (en) * 2018-08-07 2019-01-11 飞依诺科技(苏州)有限公司 Ultrasonic device scanning repeats the sequence configuration method and configuration system of layout line
CN109328449A (en) * 2017-03-22 2019-02-12 深圳配天智能技术研究院有限公司 RTEX-EtherCAT protocol conversion apparatus and industrial control system
CN110134436A (en) * 2019-05-05 2019-08-16 飞依诺科技(苏州)有限公司 Ultrasound data is packaged processing method and system
CN111132031A (en) * 2019-12-27 2020-05-08 永安行科技股份有限公司 Equipment scanning method and device
CN115599838A (en) * 2022-10-14 2023-01-13 北京百度网讯科技有限公司(Cn) Data processing method, device and equipment based on artificial intelligence and storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080024755A1 (en) * 2006-07-28 2008-01-31 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Method for real-time calculation of receive focusing parameters for beamforming and apparatus thereof
CN101569540A (en) * 2008-04-29 2009-11-04 香港理工大学 Wireless ultrasonic scanning system
CN101849838A (en) * 2009-03-30 2010-10-06 深圳迈瑞生物医疗电子股份有限公司 Method and device for eliminating transient state in ultrasonic system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080024755A1 (en) * 2006-07-28 2008-01-31 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Method for real-time calculation of receive focusing parameters for beamforming and apparatus thereof
CN101569540A (en) * 2008-04-29 2009-11-04 香港理工大学 Wireless ultrasonic scanning system
CN101849838A (en) * 2009-03-30 2010-10-06 深圳迈瑞生物医疗电子股份有限公司 Method and device for eliminating transient state in ultrasonic system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501353A (en) * 2013-10-23 2014-01-08 北京经纬恒润科技有限公司 Data relay transmission method, device and system
CN103501353B (en) * 2013-10-23 2017-12-12 北京经纬恒润科技有限公司 A kind of data relay transmission method, apparatus and system
CN103561041A (en) * 2013-11-15 2014-02-05 深信服网络科技(深圳)有限公司 SSL new connection processing method and device
CN104408055A (en) * 2014-10-29 2015-03-11 中国石油天然气股份有限公司 Storage method and device for laser radar point cloud data
CN104408055B (en) * 2014-10-29 2018-03-13 中国石油天然气股份有限公司 The storage method and device of a kind of laser radar point cloud data
CN109328449A (en) * 2017-03-22 2019-02-12 深圳配天智能技术研究院有限公司 RTEX-EtherCAT protocol conversion apparatus and industrial control system
CN106973188A (en) * 2017-04-11 2017-07-21 北京图森未来科技有限公司 A kind of image transmission and method
CN109171806A (en) * 2018-08-07 2019-01-11 飞依诺科技(苏州)有限公司 Ultrasonic device scanning repeats the sequence configuration method and configuration system of layout line
CN110134436A (en) * 2019-05-05 2019-08-16 飞依诺科技(苏州)有限公司 Ultrasound data is packaged processing method and system
CN111132031A (en) * 2019-12-27 2020-05-08 永安行科技股份有限公司 Equipment scanning method and device
CN115599838A (en) * 2022-10-14 2023-01-13 北京百度网讯科技有限公司(Cn) Data processing method, device and equipment based on artificial intelligence and storage medium
CN115599838B (en) * 2022-10-14 2023-09-29 北京百度网讯科技有限公司 Data processing method, device, equipment and storage medium based on artificial intelligence

Similar Documents

Publication Publication Date Title
CN102253821A (en) Data transmission processing method in ultrasonic diagnostic equipment
CN102202171B (en) Embedded high-speed multi-channel image acquisition and storage system
CN104881666B (en) A kind of real-time bianry image connected component labeling implementation method based on FPGA
CN109032494B (en) Intelligent interaction system, writing track display method and device, tablet and medium
CN104202552B (en) The method and apparatus that both of which MIPI signals are realized by bridging chip
CN109714586B (en) ZYNQ-based real-time binocular stereoscopic vision software and hardware collaborative design method
CN103986931B (en) Method for transmitting video data on FPGA and DSP structure on basis of SRIO bus
CN103442180B (en) Binocular video splicing device based on SOPC and binocular video splicing method
CN101178434A (en) Radar data collection system and collection method thereof
CN105915780A (en) Image signal processor and devices including the same
CN104599227A (en) DDR3 arbitration controller and method applied to high-speed CCD data storage
CN105446686A (en) Multi-screen splicing system, and multi-screen splicing display method and apparatus
CN103294836A (en) PCIE (peripheral component interconnect express) based radar data acquisition displaying and controlling system and method thereof
CN101930368B (en) Computer screen interception method and system thereof
CN108197699A (en) Debugging module for convolutional neural network hardware accelerator
CN102857703A (en) High-definition video character superimposing system and control method
CN104717444A (en) Method of automatically converting video of multiple formats to VESA (Video Electronics Standards Association)-protocol 1920*1440-resolution 75Hz-frame rate video
CN109788214A (en) A kind of multi-channel video seamless switch-over system and method based on FPGA
CN102599936B (en) Ultrasound image processing method and device
CN109600532A (en) Unmanned plane multi-channel video seamless switch-over system and method
CN101393498B (en) Image processing process for touch screen positioning
CN104267880A (en) Method and equipment for displaying handwriting locus on 3D (three-dimensional) interface
CN201378851Y (en) CCD image data collecting device
CN104461793A (en) High-reliability multinode fault-tolerant computer system and synchronization method
CN104735448B (en) ARINC818 sending node data collection and control methods

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20111123