CN1622114A - Mobile scanning and storing device and method - Google Patents
Mobile scanning and storing device and method Download PDFInfo
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- CN1622114A CN1622114A CN 200310112395 CN200310112395A CN1622114A CN 1622114 A CN1622114 A CN 1622114A CN 200310112395 CN200310112395 CN 200310112395 CN 200310112395 A CN200310112395 A CN 200310112395A CN 1622114 A CN1622114 A CN 1622114A
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Abstract
The present invention discloses one kind of mobile memory device and method. The functions of scanning, processing and storing bar code are introduced into available mobile memory device. The mobile memory device includes I/O interface and memory unit, as well as bar code distinguishing and reading unit, microprocessor control unit, input unit and power supply circuit. The mobile memory device can execute mobile storing, scan bar code, processes the obtained data by means of the software cured in the microprocessor control unit and stores the obtained information in the memory unit to facilitate commercial activity.
Description
Technical field
The present invention relates to a kind of scanning memory device of data handling system, particularly can scanning barcode and data processing that scanning is obtained after the movable storage device stored.
Background technology
Along with fast development of computer technology, and the application widely of bar codes technique, a large amount of information all uses bar code to work out, as various personal information, product information etc.Extensive stock is mostly with unique identification sign indicating number and/or the ID Code of bar code as these commodity now, especially in the market, title, specification, model, the place of production and the price etc. that also comprise these commodity on the label of commodity, as ordinary consumer or different market rival, when needs are understood these information and carry out especially the price comparison, simple by remember or hand-written be the complete information that is difficult to obtain the above-mentioned related data of these commodity.Yet existing portable scanning equipment, or just as the scanning device of image, or just as the bar shaped font code scanning device that is connected with data handling system.
On the other hand, business card has become personal information and has got in touch with indispensable instrument mutually.Usually, business card is to be printed on name, academic title, company, address and telephone number etc. with the readability form.Yet Chinese patent application " is printed on the business card of the data of bar code mode and the method by the business card exchange data " (Chinese patent application publication number: 1306262) the disclosed business card that is printed on the data of bar code mode, be printed on the data of readability mode on this business card, be printed on data simultaneously with bar code mode.Wherein, the bar coding mode comprises existing coded systems such as bar code, two-dimensional bar code.And the data of bar code mode not only comprises business card owner's personal information, can also comprise the photograph of owner place company profile, owner and company etc.After but business card exchanged and finishes, the user must use special-purpose bar code scanning equipment, obtained the information of business card bar code; When the user need store into institute's acquired information in the movable storage device, also must carry out transfer by computer system; Its operation is more loaded down with trivial details, is unfavorable for being extensive use of of bar-code visiting card.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art and the new application of bar codes technique, in conjunction with popular now large-capacity semiconductor movable storage device, provide a kind of motion scan memory storage that possesses bar code scanning and scanning information is handled.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of motion scan memory storage comprises:
Storage unit is used to store bar code information and other user data through conversion;
Controller unit, be used to control and coordinate under work between each unit of motion scan memory storage, carry out data processing and message exchange, this unit comprises the solidification software of realizing that data access and bar code information are handled;
Scanning element is used to read bar code information;
Decoding unit is connected with scanning element with described controller unit, is used for the bar code information that scanning element obtains is deciphered, and converts the digital signal of form that controller unit adapts to, and is transferred to described controller unit;
Interface unit is connected with described controller unit, is used to connect external unit or host computer system;
Display unit is connected with controller unit, is used to point out static information and multidate information;
Input Control Element is connected with controller unit, is used for input control information and/or operation requests;
Power supply unit comprises self-poweredly, is used for providing working power to described motion scan memory storage.
Motion scan memory storage of the present invention can be discerned the bar code information of working out with coded systems such as one-dimensional bar code, two-dimensional bar or multi-dimensional bar code.Described display unit can immediately show these bar code informations.
Purpose of the present invention can also be achieved through the following technical solutions: utilize the motion scan memory storage to carry out the method that bar code information is handled and stored, described motion scan memory storage comprises: storage unit, controller unit, scanning element, decoding unit, interface unit, display unit, Input Control Element and power supply unit; Described method comprises step:
1) described controller unit receives the user's operational order through the bar code scanning of described Input Control Element transmission,
2) described controller unit activates described scanning element and carries out bar code scanning, reads bar code information, and this bar code information is passed to described decoding unit;
3) described decoding unit is deciphered the bar code information that obtains, and converts digital signal to, and this signal is transferred to described controller unit;
4) bar code information after described controller will be handled stores described storage unit into, perhaps makes information indicating by described display unit.
The described method of utilizing the motion scan memory storage to carry out bar code information processing and storage also comprises: described controller is sent to the external unit or the host computer system that are connected with the bar code information of preserving through described interface unit handles.
Motion scan memory storage of the present invention can be discerned bar code information easily, and it is stored in its storage unit, directly call the information in the storage unit in use and can make information indicating to the user by display unit, as going out product price, the place of production, producer etc. by the LCD liquid crystal display, have and obtain various market informations quickly and easily, the grasp competitive edge.Simultaneously, the present invention can also be applied to the bar code business card scan, has exempted the loaded down with trivial details of manual input information, thereby both can become a kind of ecommerce equipment, also can become people's electronics one by one.This motion scan memory storage can be by carrying out exchanges data as general-purpose interface technology such as USB, IEEE1394, bluetooth and computer system or other external units easily.
Description of drawings
The principle block diagram of Fig. 1 motion scan memory storage of the present invention;
Fig. 2 is the business card synoptic diagram that is printed on two-dimensional bar that the present invention scans;
Fig. 3 makes the structural representation of the flash memory device of first embodiment;
The workflow diagram of Fig. 4 first embodiment of the invention;
Fig. 4 A is another step of embodiment of the invention workflow;
Embodiment
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Motion scan memory storage of the present invention is that bar code reader is integrated in the movable storage device, be used to catch, handle, store the bar code information of various article and commodity, the represented content of these bar code informations comprises information such as literal, letter, numeric character, image, and can conveniently call above-mentioned information and or various informations.
Fig. 1 is the synoptic diagram that motion scan memory storage of the present invention constitutes.See also Fig. 1, the present invention is integrated in scanning element 10, decoding unit 20 in the existing movable storage device by interface bus, forms motion scan memory storage of the present invention.Described motion scan memory storage also comprises controller unit 30, interface unit 40, Input Control Element 50, storage unit 60, display unit 70 and power supply unit 80.
Described scanning element 10 is connected with described decoding unit 20, it can adopt CCD optoelectronic scanning mode, laser scanning methods or the work of contact scan mode, bar code information on various article or the business card is scanned, and convert the bar code information of being caught to it corresponding electric impulse signal, be sent to decoding unit 20.
Described decoding unit 20 is connected with scanning element 10, controller unit 30, be provided with decoding processor in it, solidify in this processor control program that scanning element 10 is controlled, to electric impulse signal decipher, the decoding checking routine of verification, activation is connected communication with controller unit 30 communication program.20 pairs of this decoding units receive the electric impulse signal that above-mentioned scanning element 10 sends and decipher, and convert digital signal to, the encoding digital signals verification to obtaining simultaneously, and correct digital signal is sent to coupled controller unit 30.Described decoding unit 20 is connected with controller unit 30 by interface bus, described interface bus can be one or more of Serial ATA, RS232, I2C, USB, SPI, IEEE1394, common I/O or parallel interface bus, and the communication between decoding unit 20 and the controller unit 30 meets the standard agreement of above-mentioned interface.Understandable, described decoding unit 20 can be integrated on the chip with controller unit 30, and it is connected to common I/O or parallel interface bus.
Controller or processor that described controller unit 30 can be existing movable storage device, independently scan control and processor are connected with existing movable storage device controller or processor also can to increase by one.This controller unit 30 is provided with application program, this controller unit 30 can activate 20 pairs of scanning elements 10 of decoding unit in conjunction with its application program and control and the digital signal that decoding unit 20 transmits is handled, and the conventional func that realizes existing movable storage device.30 pairs of digital signals that receive of described controller unit (transmitting from decoding unit 20) are handled, and make its data message that converts the data memory format that meets movable storage device to, deposit in the storage unit 60, for standby; Perhaps bar code information is shown, and stored by display unit 70.When the motion scan memory storage need call above-mentioned data message, only need be by Input Control Element 50 input control operation instructions, described controller unit 30 calls the bar code data information in the storage unit 60, described bar code information can be shown or by interface unit 40 described bar code information is transferred to various host computer systems or external unit.
Described display unit 70 can adopt the display screen of full-color LCDs or existing movable storage device, and the display screen of the information of display controller unit 30 results and the existing movable storage device of conduct uses under the control of controller unit 30.
Above-mentioned Input Control Element 50 can adopt input modes such as keyboard input or handwriting input, and it can be the input equipment of existing movable storage device; Perhaps set up independent button separately as scanning scanning controller of the present invention, to activate scanning.This Input Control Element 50 can also send the information that above-mentioned motion scan memory storage is caught and carry out operational orders such as various information inputs, modification, storage; Can also send the operational order that calls the information in the storage unit 60, call various canned datas and carry out data communication with other host computer systems or external unit; Can also the input operation instruction make 20 pairs of scanning elements 10 of controller unit 30 activation decoding units control, make scanning element 10 be in the scanning work state.
Described storage unit 60 can be that the storage medium of flash memory device setting is (understandable, this storage unit 60 can be set up storage medium in addition with the increase capacity), this storage medium includes but not limited to flash storage medium (Flash Memory), DRAM, EEPROM, SRAM, SDRAM, FRAM, MRAM or the like.Described storage unit 60 can be divided into a plurality of parts, as personal information storage district, scanning information memory block, bar code information memory block or the like, be used for the resulting information of bar code on various article of memory scanning and the business card, perhaps the various information of Input Control Element 50 inputs.
Motion scan memory storage of the present invention can also be provided with the interface unit 40 that is connected with controller unit 30, this interface unit 40 can be connected with system host or external unit and carries out exchanges data, and described interface unit 40 can be (but being not limited to) USB interface, IEEE1394 interface, IrDA interface, blue tooth interface or interfaces such as IEEE802.11a, IEEE802.11b, IEEE802.11g.Described interface unit 40 meets the defined codes and standards of himself agreement; After described interface unit 40 connected host computer system or external unit, the method for normalizing that motion scan device of the present invention is followed according to its interface protocol carried out exchanges data.
Described power supply unit 80 provides two kinds of power supply power supply modes at least, promptly when apparatus of the present invention connect host computer system or external unit, then directly obtain power supply by interface unit 40, and provide needed various power supply supply for it by power converting circuit from host computer system or external unit; When apparatus of the present invention scan various Item Information or card information as scanister, then can self-poweredly provide the power supply supply by it for it.
Motion scan memory storage of the present invention can be discerned the bar code information of working out with coded systems such as one-dimensional bar code, two-dimensional bar or multi-dimensional bar code, and described bar code information can be printed on various article or the business card.As shown in Figure 2 be the business card that is printed on two-dimensional bar information.On this business card except being printed in the readability mode the business card owner data, also be printed on bar code information with the two-dimensional bar coding, this bar code information not only can be represented business card owner's data, can also represent business card owner's photograph, the data of its affiliated company etc.Understandable, above-mentioned data can be encoded by one-dimensional bar code, multi-dimensional bar code equally, is printed on various article or the business card.
Fig. 3 is the synoptic diagram of first embodiment of motion scan memory storage of the present invention.As shown in Figure 3, motion scan memory storage of the present invention is that the two-dimensional bar reader is integrated in the existing flash memory device, comprises two-dimensional bar scanning element 11, two-dimensional bar decoding unit 21, first processor unit 31, first interface unit 41, first storage unit 61, first Input Control Element 51, first display unit 71, first power supply unit 81.Described first processor unit 31 can also comprise scan control and the processing unit 310 and first CPU (central processing unit) 312, and both are connected by bus.Understandable, described scan control and processing unit 310 and first CPU (central processing unit) 312 can be single microprocessors, also can be two microprocessors that are connected by interface bus.Wherein, described first CPU (central processing unit) 312, first storage unit 61, first interface unit 41 etc. have been realized the function of existing flash memory device.
Described two-dimensional bar scanning element 11 is connected with described two-dimensional bar decoding unit 21, it can adopt CCD optoelectronic scanning mode, laser scanning methods or the work of contact scan mode, scan the two-dimensional bar information on the business card as shown in Figure 2, convert bar code information to corresponding with it electric impulse signal, and be sent to two-dimensional bar decoding unit 21.
Described two-dimensional bar decoding unit 21 is provided with processor, and solidify in this processor retouch the control program controlled unit 11 to sweeping two dimension, to electric impulse signal is deciphered, the decoding checking routine of verification, activation and scan control are connected communication with processing unit 310 communication program.When this two-dimensional bar decoding unit 21 receives the electric impulse signal that above-mentioned two-dimensional scan unit 11 is sent, then it is deciphered, convert digital signal to, encoding digital signals verification to obtaining simultaneously, and correct digital signal is sent to coupled scan control and processing unit 310.Described two-dimensional bar decoding unit 21 is connected with scan control and processing unit 310 by interface bus, and wherein, described bus can be Serial ATA, RS232, I
2One or more of C, USB, SPI, IEEE1394, common I/O or parallel interface bus, the communication between two-dimensional bar decoding unit 21 and scan control and the processing unit 310 meets the standard agreement of above-mentioned interface bus.The foundation of the communication channel of described interface bus can realize by communication program, also can be to realize by hardware circuit.Understandable, this two-dimensional bar decoding unit 21 also can be integrated in the chip with scan control and processing unit 310, and the interface bus of its connection is a serial interface bus.
Described scan control and processing unit 310 can be selected microprocessors such as SH3, X86 or Risc for use, be provided with ROM and RAM in it, wherein, mainly depositing the application program of controlling two-dimensional bar decoding unit 21 and the digital signal that two-dimensional bar decoding unit 21 transmits being handled among the ROM; RAM can temporarily deposit the digital signal that transmits from described two-dimensional bar decoding unit 21, and as the buffer memory of application program operation.In conjunction with above-mentioned application program, described scan control and processing unit 310 can activate 21 pairs of two-dimensional bar scanning elements 11 of two-dimensional bar decoding unit and control, and make that the two-dimensional bar information on 11 pairs of various article in two-dimensional scan unit or the business card scans; The digital signal that transmits from two-dimensional bar decoding unit 21 can also be handled, make it convert the data message that first CPU (central processing unit) 312 can the recognition data form to, and the form that meets interface standard agreement defined is sent to described first CPU (central processing unit) 312 by interface bus.This scan control and processing unit 310 can be connected with first CPU (central processing unit) 312 by interface bus, and described interface bus also can be Serial ATA, RS232, I
2One or more of C, USB, SPI, IEEE1394, common I/O or parallel interface bus, the communication between scan control and processing unit 310 and first CPU (central processing unit) 312 meets the standard agreement of above-mentioned interface bus.Understandable, this scan control and processing unit 310 and first CPU (central processing unit) 312 also can be integrated in the chip, and the interface bus of its connection is common common I/O interface bus.
Described first CPU (central processing unit) 312 realizes the control to flash memory device, can handle the data message that scan control and processing unit 310 send simultaneously.This first CPU (central processing unit) 312 can be provided with ROM and RAM in it too.Wherein, the application program of mainly depositing flash memory device functions such as the data transmission of controlling motion scan memory storage of the present invention, information stores, information demonstration, information correction among the ROM and the information that scan control and processing unit 310 transmit being handled; RAM can temporarily deposit the information that transmits from described scan control and processing unit 310, and as the buffer memory of application program operation.Described first CPU (central processing unit) 312 can be finished the conventional func of flash memory device by calling above-mentioned application program; Can also handle the information that transmits from scan control and processing unit 310, for example extract information such as name, telephone number, address, Item Title, specification, model, the place of production and price, and with the storage format of described information according to first storage unit 61, store the suitable position of described first storage unit 61 into, and can call above-mentioned canned data, inquire about; Perhaps connect with host computer system by first interface unit 41, the data information transfer that scanning is extracted arrives other host computer systems, is stored, analyzes or do other purposes.
Understandable, above-mentioned scan control and processing unit 310 can use processor chips to realize with the first above-mentioned CPU (central processing unit) 312, above-mentioned corresponding application program is set, flash memory device conventional func such as the application program of handling as the digital signal that two-dimensional bar decoding unit 21 is transmitted, transmission data, display message, storage data and application program that the information that scan control and processing unit 310 transmit is handled etc. in this processor.This processor can activate the digital signal that 21 pairs of two-dimensional bar scanning elements 11 of described two-dimensional bar decoding unit control, decoding unit 21 is transmitted in conjunction with its application program and handle, and the conventional func that realizes existing flash memory device, for example to the control of first display unit 71, first storage unit 61, first Input Control Element 51, first interface unit 41 etc.
Understandable, described two-dimensional bar decoding unit 21, described scan control and processing unit 310 and first CPU (central processing unit) 312 can be integrated in the chip, and its interface bus is serial interface bus or parallel interface bus.
Described first display unit 71 can adopt full-color LCDs or existing conventional display screen, is used for showing the information of first processor unit 31 results and uses as the mobile storage display screen under the control of first CPU (central processing unit) 312.
Described first Input Control Element 71 can adopt input modes such as keyboard input or handwriting input, and it can be the input equipment of existing mobile phone, and the scanning switch that simulation only need be set gets final product; Perhaps set up an independent button separately as scanning switch, scan so that first processor unit 31 activates two-dimensional bar decoding unit 21 control two-dimensional bar scanning elements 11.Described first Input Control Element 71 can import to the information of being caught make amendment, operational order such as storage, store in first storage unit 61 into; Can also import the operational order that calls the information in first storage unit 61, to calling of canned data; Can also make first processor unit 31 can activate 21 pairs of two-dimensional bar scanning elements 11 of two-dimensional bar decoding unit by the defined scanning switch of operation (for example push switch etc.) input operation instruction controls, make two-dimensional bar scanning element 11 be in the scanning work state, the two-dimensional bar information on the business card is scanned.
Described first storage unit 61 can be that the storage medium of existing mobile phone is (understandable, can set up storage medium in addition with the increase capacity), this storage medium can be flash memory (Flash Memory), DRAM, EEPROM, SRAM, SDRAM, FRAM, MRAM or the like.Described first storage unit 61 can be divided into a plurality of parts, as phone directory, notepad, commodity district or the like, is used for the various information that memory scanning obtains, perhaps the various information of first input block, 51 inputs.Described first storage unit 61 can pre-deposit database, and this database can be the information bank of commodity, and the digital signal that apparatus of the present invention can obtain according to scan bar code symbol is searched corresponding commodity in information bank, obtain a series of information of these commodity.This database also can be the character library that local literary composition is planted, for example, can be provided with Chinese word library and ASCII character library etc. in China, this Chinese word library can be used coding method establishments such as materialistic gold compiling method (Chinese character with to several numerals), national standard code.Apparatus of the present invention can be searched corresponding character according to the digital signal that scan bar code symbol obtains in the good character library of predefine, obtain corresponding Word message.
Described first interface unit 41 can be connected with system host or external unit and carries out exchanges data, and described first interface unit 41 can be (but being not limited to) USB interface, IEEE1394 interface, IrDA, blue tooth interface or interfaces such as IEEE802.11a, IEEE802.11b, IEEE802.11g.Described first interface unit 40 meets the defined codes and standards of himself agreement; After described first interface unit 40 connected host computer system or external unit, the method for normalizing that motion scan device of the present invention is followed according to its interface protocol carried out exchanges data.
Fig. 4 is the workflow diagram of first embodiment of the invention.As shown in Figure 4, motion scan memory storage of the present invention is in conjunction with the workflow of its built-in application program, the present invention made further specifying.
At step S401, by operating the first input block scanning switch, make first processor unit activating two-dimensional bar decoding unit control to the two-dimensional bar scanning element, the two-dimensional bar scanning element scans, catches the two-dimensional bar information on the business card, produce and the corresponding electric impulse signal of two-dimensional bar information, be sent to the two-dimensional bar decoding unit;
At step S402, the two-dimensional bar decoding unit is deciphered the electric impulse signal that receives in conjunction with its built-in decoding checking routine, converts digital signal to; And,, this digital signal is carried out verification at step S403, if incorrect, then, send chimes of doom at step S404, and, remove the digital signal in the two-dimensional bar decoding unit at step S405, restart the two-dimensional bar scanning element then and scan; If correctly then enter next step;
At step S406, the interface channel between two-dimensional bar decoding unit and scan control and the processing unit is set up in the communication of activation interface bus, and carries out communication, and its communication meets the standard agreement of interface;
At step S407, the digital signal of two-dimensional bar decoding unit is sent in scan control and the processing unit, and this scan control and processing unit are handled this digital signal, makes it meet the data layout of first central processing unit for processing;
At step S408, judge whether to continue scanning, continue scanning if desired, then repeat above-mentioned steps and scan next time; If do not need to continue scanning then enter next step;
At step S409, to set up the interface channel between scan control and processing unit and first CPU (central processing unit), and carry out communication, the digital signal after scan control and processing unit processes is sent in first CPU (central processing unit);
At step S410, first CPU (central processing unit) is handled this digital signal, comprise information such as extracting name, telephone number, address, Item Information, price, and can on first display unit, show, can also by first input block to these information edit, operation such as modification;
At step S411, judge whether above-mentioned information is preserved, if desired, then enter next step;
At step S413,, select to preserve in first storage unit position and store, for standby according to the operational order of first input block.
When the motion scan memory storage need call canned data, only need to operate according to the data access operation method of existing flash memory device, can call corresponding information.
Understandable, step S410 in the above-mentioned workflow can be the step S410 ' shown in Fig. 4 A, name and telephone number thereof that first CPU (central processing unit) only extracts needed Item Information, price or business card owner get final product, then, at step S411 ', resulting information is directly stored in first storage unit 61, wherein said here storage can be to compare with existing institute canned data, for example find to have identical information, then replaced or do not preserve; If incomplete same, then stored as a new record.
Described motion scan memory storage can also be connected with other host computer systems or other external units by interface unit, the bar code information of described preservation is handled through external unit or host computer system that described interface unit is sent to connection, this respect can not given unnecessary details at this with reference to existing flash memory device technology.
Claims (6)
1. a motion scan memory storage is characterized in that, described motion scan memory storage comprises:
Storage unit (60) is used to store bar code information and other user data through conversion;
Controller unit (30) is used to control and coordinates work between each unit of described device, carries out data processing and message exchange, and this unit comprises the solidification software of realizing that data access and bar code information are handled;
Scanning element (10) is used to read bar code information;
Decoding unit (20), be connected with scanning element (10) with described controller unit (30), be used for the bar code information that scanning element (10) obtains is deciphered, convert to controller unit (30) adapt to the digital signal of form, and be transferred to described controller unit (30);
Interface unit (40) is connected with described controller unit (30), is used to connect external unit or host computer system;
Display unit (70) is connected with controller unit (30), is used to point out static information and multidate information;
Input Control Element (50) is connected with controller unit (30), is used for input control information and/or operation requests;
Power supply unit (80) comprises self-poweredly, is used for providing working power to described motion scan memory storage.
2. motion scan memory storage as claimed in claim 1 is characterized in that: described decoding unit (20) is integrated in the chip with described controller unit (30).
3. motion scan memory storage as claimed in claim 1 is characterized in that: described interface unit (40) is USB interface, IEEE1394 interface, IrDA interface, blue tooth interface, IEEE802.11a interface, IEEE802.11b interface or IEEE802.11g interface.
4. motion scan memory storage as claimed in claim 1 is characterized in that: described scanning element (10) can be discerned the bar code information of working out with one-dimensional bar code, two-dimensional bar or multi-dimensional bar code coded system.
5. the method for utilizing motion scan memory storage according to claim 1 to carry out bar code scanning and information processing, described method comprises step:
1) described controller unit (30) receives the user's operational order that carries out bar code scanning through the requirement of described Input Control Element (50) transmission;
2) described controller unit (30) activates described scanning element (10) and carries out bar code scanning, reads bar code information, and this bar code information is passed to described decoding unit (20);
3) described decoding unit (20) is deciphered the bar code information that obtains, and converts digital signal to, and this signal is transferred to described controller unit (30);
4) bar code information after described controller unit (30) will be handled stores described storage unit (60) into, perhaps shows by described display unit (70) information of making.
6. method as claimed in claim 5 is characterized in that, also comprises step:
5) described controller unit (30) is handled the bar code information of preserving according to user's operation requests through external unit or host computer system that described interface unit (40) is sent to connection.
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| WO2011035471A1 (en) * | 2009-09-24 | 2011-03-31 | Wu Ming-Chang | System for object sensing prompt |
| US8235303B2 (en) | 2008-03-27 | 2012-08-07 | Denso Wave Incorporated | Two-dimensional code having rectangular region provided with specific patterns to specify cell positions and distinction from background |
| CN103065115A (en) * | 2012-12-21 | 2013-04-24 | 广州市宝比塑料制品有限公司 | Control method for bar code scanning feedback generator and bar code scanning feedback generator |
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| US8235303B2 (en) | 2008-03-27 | 2012-08-07 | Denso Wave Incorporated | Two-dimensional code having rectangular region provided with specific patterns to specify cell positions and distinction from background |
| US8397999B2 (en) | 2008-03-27 | 2013-03-19 | Denso Wave Incorporated | Two-dimensional code having rectangular region provided with specific patterns to specify cell positions and distinction from background |
| US8413909B2 (en) | 2008-03-27 | 2013-04-09 | Denso Wave Incorporated | Two-dimensional code having rectangular region provided with specific patterns to specify cell positions and distinction from background |
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