CN101908130A - Portable electronic device based on bar code decoding chip - Google Patents
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- CN101908130A CN101908130A CN2010101898413A CN201010189841A CN101908130A CN 101908130 A CN101908130 A CN 101908130A CN 2010101898413 A CN2010101898413 A CN 2010101898413A CN 201010189841 A CN201010189841 A CN 201010189841A CN 101908130 A CN101908130 A CN 101908130A
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Abstract
The invention provides a portable electronic device based on a bar code decoding chip, which comprises a bar code decoding system and a processor system, wherein the bar code decoding system is used for decoding the input bar code image; and the processor system is used for providing a control function for a system on chip (SOC). The bar code decoding system comprises a register set, a bar code decoding production line and a main control logic module, wherein the register set comprises a command register and a data register, wherein the command register is used for temporarily storing commands, and the data register is used for temporarily storing data; the bar code decoding production line is used for processing the bar code image; and the main control logic module acquires a processing command from the command register and transfers the bar code image to the bar code decoding production line to be decoded according to the processing command. The portable electronic device based on the bar code decoding chip has a bar code decoding function and does not need to depend on an external bar code decoding device for decoding; and because a special hardware decoding production line for decoding bar codes is adopted, compared with the conventional software decoding, the invention has higher decoding speed, can be used more conveniently and is safer and more effective.
Description
[technical field]
The present invention relates to portable electron device, relate in particular to a kind of portable electron device based on bar code decoding chip.
[background technology]
Barcode technology is an appearance coding, printing, identification, the data acquisition and processing (DAP) emerging technology that grows up on computer technology and infotech basis.Barcode technology is because its identification is quick, accurate, reliable and low cost and other advantages, be widely used in fields such as commerce, taking care of books, storage, post and telecommunications, traffic and Industry Control, and certainly will in " Internet of Things " that rise gradually used, bring into play great function.
Present portable electron device such as mobile phone, palm PC and PDA(Personal Digital Assistant) function constantly develop, can be used for receiving, storage and transmission static state or video image, and the standing camera head that is equipped with on these portable electron devices, these camera heads can be used for photographic images, bar code image for example, prior art usually need be decoded by special decoding device for the bar code image in these portable electron devices, continuous popularization along with Internet of Things and barcode technology, this certainly will bring great inconvenience to the user, therefore is necessary to provide a kind of novel portable electron device based on bar code decoding chip.
[summary of the invention]
For solving the problems of the technologies described above, the invention provides a kind of portable electron device based on bar code decoding chip.Should have the bar code decoding function based on the portable electron device of bar code decoding chip, need not to relend and help outside bar-code decoder to decode, and owing to adopted bar code decoding to handle special-purpose hardware decoded stream waterline, so it is compared with known software decode, and decoding speed is faster, use is more convenient, safer and more effective.
The invention provides a kind of portable electron device based on bar code decoding chip, comprising: the bar code decoding system is used for the bar code image of input is decoded; Processor system is used to SOC (system on a chip) that control function is provided; The bar code decoding system comprises: registers group, comprise command register and data register, and command register is used for temporary order, and data register is used for temporal data; Bar code decoding pipeline is used to handle bar code image; The master control logic module is obtained processing command from command register, according to processing command bar code image is transferred to bar code decoding pipeline and decodes.
According to a preferred embodiment of the invention, processor system comprises: arithmetical unit is used to move arithmetical logic; Program storage, the storage arithmetical logic; And first data-carrier store, desired data when storing arithmetical unit operation arithmetical logic, and preserve operation result.
According to a preferred embodiment of the invention, the bar code decoding system further comprises: second data-carrier store is used to store bar code image; Bus interface is ordered to command register from the bus reception.
According to a preferred embodiment of the invention, the bar code decoding system comprises: bus interface receives outer strip sign indicating number image to data register from bus, and the master control logic module transfers to second data-carrier store according to order with outside bar code image.
According to a preferred embodiment of the invention, the bar code decoding system further comprises config memory, config memory is electrically connected with registers group, the computing parameter and the data of tabling look-up when being used to store bar code decoding pipeline work, bar code decoding pipeline is obtained the computing parameter and the data of tabling look-up by master control logic module and registers group from config memory.
According to a preferred embodiment of the invention, the bar code decoding system further comprises config memory, and config memory is arranged on bar code decoding pipeline inside, the computing parameter and the data of tabling look-up when being used to store bar code decoding pipeline work.
According to a preferred embodiment of the invention, the bar code decoding system comprises a plurality of bar code decoding pipeline that realized by hardware logic, and a plurality of bar code decoding pipeline are carried out parallel processing to bar code image.
According to a preferred embodiment of the invention, bus interface comprises that basic input and output pin, command latch enable pin, address latch enable pin, sheet select pin, write enable pin and read enable pin.
According to a preferred embodiment of the invention, further comprise a kind of or its combination of the optical image sensor array or the external interface that are used to obtain bar code image based on the portable electron device of bar code decoding chip.
According to a preferred embodiment of the invention, the portable electron device based on bar code decoding chip comprises mobile phone, palm PC and PDA(Personal Digital Assistant).
[description of drawings]
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the synoptic diagram that the present invention is based on the portable electron device of bar code decoding chip; And
Fig. 2 is the portable electron device circuit connection block diagram based on bar code decoding chip according to one preferred embodiment of the present invention.
[embodiment]
Relevant feature of the present invention and technology contents please refer to following detailed description and accompanying drawing, and accompanying drawing only provides reference and explanation, is not to be used for the present invention is limited.
Present portable electron device such as mobile phone, palm PC and PDA(Personal Digital Assistant) function constantly develop, and Fig. 1 is the synoptic diagram that the present invention is based on the portable electron device of bar code decoding chip.As shown in Figure 1, the portable electron device 10 based on bar code decoding chip of the present invention comprises processor system 11, bar code decoding system 12, optical image sensor array 13 and external interface 14.Processor system 11 is used to control the operation of whole portable electron device.Optical image sensor array 13 is used to take bar code image.Portable electron device 10 based on bar code decoding chip of the present invention carries out exchanges data by external interface 14 with the external world, for example receives static state or the video image that comprises bar code image by external interface 14.External interface 14 can adopt retrievable any type of interface at present such as wave point or wireline interface.Further, the portable electron device 10 based on bar code decoding chip of the present invention also can comprise the storer (not shown), receives or takes the bar code image that obtains and can be stored in this storer.Bar code decoding system 12 is used for the bar code image that is obtained is handled and decoded.
Fig. 2 is the portable electron device circuit connection block diagram based on bar code decoding chip according to one preferred embodiment of the present invention.As shown in Figure 2, the portable electron device 10 based on bar code decoding chip of the present invention comprises processor system 11, bar code decoding system 12, optical image sensor array 13 and external interface 14.
Wherein, processor system 11 comprises arithmetical unit 113, program storage 114, first data-carrier store 115 and other known functional modules (register that has as processor itself, serial ports, timer, interruptable controller etc. do not illustrate among the figure).Arithmetical unit 113 is used to move arithmetical logic, program storage 114 stores the arithmetical logic of arithmetical unit 113 operations, desired data when storing arithmetical unit 113 operation arithmetical logics in first data-carrier store 115, and can store operation result, bus 112 provides data transmission channel for arithmetical unit 113, program storage 114, first data-carrier store 115.
The processor system 11 of present embodiment is mainly used in to the portable electron device based on bar code decoding chip of the present invention certain control function is provided, for example receive keyboard input signal by external interface 14, export display control signal by external interface 14 to display unit, export illumination control signal to illuminator, and obtain outside bar code image and realize access action etc. with external memory storage by external interface 14.The processor system 11 of present embodiment can also provide the part auxiliary operation for the bar code decoding process.
Bar code decoding system 12 comprises bus interface 109, registers group 103, master control logic module 101, bar code decoding pipeline 102 and second data-carrier store 104.Bar code decoding system 12 is connected on the bus 112 of the portable electron device based on bar code decoding chip of the present invention by bus interface 109.
In above-mentioned bar code decoding system 12, bar code decoding pipeline 102 comprises PDF417 bar code decoding pipeline, bar code decoded stream waterline and RSS (Reduced Space Symbology dwindles space code) bar code decoding pipeline, dissimilar bar code decoding pipeline is used to handle the bar code image of different barcode standards, and it utilizes hardware logic to realize.
Second data-carrier store 104 is used to store the bar code image that is obtained by optical image sensor array 13 or external interface 14, and it specifically can utilize RAM (random access memory random access memory) to realize.
Master control logic module 101 can trigger particular event according to particular command, can be by triggering switch 107 is set or obtains bus line command from bus interface 109 and choose required state of a control of being electrically connected with master control logic module 101, as obtaining bar code image, transmit it to bar code decoding pipeline 102 etc. from second data-carrier store 104.Disclosed master control logic module 101 does not possess calculation function, but only triggers corresponding event according to certain condition, specifically can utilize known state machine to realize.
Be provided with registers group 103 between bus interface 109 and the master control logic module 101, registers group 103 comprises a series of self-defining registers, comprise status register, data register and command register etc., status register is used to show the duty of master control logic module 101, data register is used for temporal data, command register is used for temporary order, master control logic module 101 can be from the data register reading of data, from the order register read command, and make specific action according to particular command, wherein also can be from bus interface 109 input commands (being bus line command).Registers group 103 is isolated bar code decoding pipeline 102 and external circuit with master control logic module 101, after can making things convenient for bar code decoding pipeline 102 is upgraded (as increasing the bar code decoding pipeline of handling the extended formatting type) more.
Optical image sensor array 13 can be known CCD (Charge Coupled Device Charge Coupled Device (CCD) imageing sensor) or CMOS (Complementary Metal Oxide Semiconductor complementary metal oxide semiconductor (CMOS)) optical image sensor array, is used to obtain bar code image.
In addition, bar code image also can obtain by external interface 14.Behind optical image sensor array 13 or external interface 14 acquisition bar code images, this bar code image inputs in the data register of registers group 103, master control logic module 101 can be obtained bar code image from data register, and it is saved to second data-carrier store 104, master control logic module 101 can transfer to bar code image the bar code decoding pipeline 102 from second data-carrier store 104 receive processing command in command register after, carries out the image pre-service by 102 pairs of these bar code images of bar code decoding pipeline, gray scale is extracted, binaryzation, code word reads, a series of bar code decodings such as decoding processing are handled operation.
Bar code decoding system 12 also can further comprise config memory (scheming not shown), config memory is electrically connected with registers group 103, the computing parameter when being used to store bar code decoding pipeline 102 work and the data of tabling look-up (as the required code table of decoding computing), bar code decoding pipeline 102 can be obtained above data from config memory by master control logic module 101 and registers group 103, it must guarantee can obliterated data under the situation of outage, available known EEPROM (Electrically ErasableProgrammable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) realizes, in some cases, config memory can be set directly in the bar code decoding pipeline 102.
It should be noted that because bar code decoding pipeline 102 comprises multiple bar code decoding pipeline at different barcode types such as PDF417 bar code decoding pipeline, bar code decoded stream waterline and RSS bar code decoding pipeline.Therefore, after obtaining bar code image, for example be bar code, this bar code image can transfer to simultaneously in above three kinds of bar code decoding pipeline and carry out parallel processing so, and is exported the correct bar code information of this bar code image by the bar code decoded stream waterline compatible with its form.A kind of bar code decoding pipeline of or other multiple forms also can be set certainly, as required.
Because incompatible with the bar code picture format, PDF417 bar code decoding pipeline and RSS bar code decoding pipeline can't be carried out respective handling after receiving this bar code image, and can't export correct bar code information.Similarly, bar code decoding pipeline 102 also can be carried out above-mentioned processing to PDF417 bar code image, RSS bar code image.Certainly, master control logic module 101 also can be handled the input bar code image according to the bar code streamline that user's selection is only controlled in a plurality of bar code streamlines.
In addition, if successively obtain three bar code image A from optical image sensor array 13 or bus interface 109, B, C to the second data-carrier store 104, three bar code image A, B, respectively corresponding three kinds of dissimilar barcode standards of C: PDF417 bar code, RSS bar code and bar code, these three bar code images can provide to bar code decoding pipeline 102 from second data-carrier store 104 by the precedence of obtaining so, under the same time, the PDF417 bar code decoding pipeline, bar code decoded stream waterline and RSS bar code decoding pipeline be parallel processing bar code image A at first, the result is: the PDF417 bar code decoding pipeline can handle accordingly to bar code image A, and export correct bar code information, other two bar code decoding pipeline then can't be handled bar code image A.If in the processing procedure of PDF417 bar code decoding pipeline to bar code image A, bar code decoded stream waterline and RSS bar code decoding pipeline have been confirmed to handle A, then can attempt handling next bar code image B, wherein the RSS bar code decoding pipeline can be handled bar code image B, and exports correct bar code information.If in the process that PDF417 bar code decoding pipeline and RSS bar code decoding pipeline are handled bar code image A, B respectively, bar code decoded stream waterline has been confirmed to handle bar code image B, then can continue to attempt next bar code image C is handled, and because form correspondence, bar code decoded stream waterline can be handled C, and exports correct bar code information.
Just can handle second bar code image owing to waiting for that first bar code image finished dealing with, and need not wait for that second bar code image finished dealing with and just can handle the 3rd bar code and open image that therefore above parallel bar code image processing mode can greatly improve the speed of handling dissimilar bar code images.
The bar code information of bar code decoding pipeline 102 outputs can be stored to second data-carrier store 104 by master control logic module 101, and is being stored to data register from second data-carrier store 104 when needs are exported.Certainly, the bar code information of bar code decoding pipeline 102 outputs can directly be stored to data register by master control logic module 101.The bar code information that is stored to data register can transfer to bus 112 through bus interface 109.
In the above embodiment of the present invention, because the bar code decoding pipeline 102 of having used the parallel type bar code decoding to handle, so the comparable known software decode speed of decoding speed wants fast.
In a preferred embodiment, the bus interface 109 that is disclosed among Fig. 2 comprises following pin: I/O
0-I/O
7, CLE, ALE, CS, WE, RE, wherein each functions of pins such as following table 1.1 introduction:
Table 1.1
| Pin name | Pin function |
| I/O 0～I/O 7 | I/O 0～I/O 7/ basic input and output I/O 0～I/O 7Pin be used for input command (command), address (address), |
[0041]
| Data (data), and when read operation (read) output data. | |
| CLE | When COMMAND LATCH ENABLE/ command latch enable CLE activated, the input data were order |
| ALE | When ADDRESS LATCH ENABLE/ address latch enabled the ALE activation, the input data were the address. |
| CS | The choosing of CHIP SELECT/ sheet is worked as this input end in significant level, and chip just enters duty, realizes the input and output of data. |
| WE | WRITE ENABLE/ writes and enables WE the input of I/O end is controlled, and WE activates, and allows input, and order, address, data latching are at the rising edge or the negative edge of WE pulse. |
| RE | READ ENABLE reads to enable RE the input of I/O end is controlled, and WE activates, and allows to export to I/O. |
Generally speaking, when pin ALE was effective, bus interface 109 was from pin I/O
0～I/O
7Receive address date, when pin CLE was effective, bus interface 109 was from pin I/O
0～I/O
7Receive order, and will order and keep in to the command register of registers group 103, when the WE pin was effective, outside bar code image can be from the pin I/O of bus interface 109
0-I/O
7The data register of input register group 103, master control logic module 101 can be obtained outside bar code image from the data register of registers group 103 according to mentioned order, and transfers to second data-carrier store 104.In addition, when master control logic module 101 when the command register of registers group 103 reads processing command, the bar code image in second data-carrier store 104 can be transferred to bar code decoding pipeline 102 and carry out decoding processing.
The bus interface 109 of SOC (system on a chip) of the present invention can with the common status bus compatibility, be very easy to development process, and dwindled equipment volume.In addition, should have the bar code decoding function based on the portable electron device of bar code decoding chip, need not to relend and help outside bar-code decoder to decode, and owing to adopted bar code decoding to handle special-purpose hardware decoded stream waterline, thus its to compare decoding speed faster with known software decode; In addition, the bar code decoding pipeline of pure hardware configuration can not be reversed engineering and crack, and security performance is very high, and decoding speed is faster, cost is lower, and can handle the function of the bar code image of multiple different coding type.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (10)
1. the portable electron device based on bar code decoding chip is characterized in that, comprising:
The bar code decoding system is used for the bar code image of input is decoded;
Processor system is used to described SOC (system on a chip) that control function is provided;
Described bar code decoding system comprises:
Registers group comprises command register and data register, and described command register is used for temporary order, and described data register is used for temporal data;
Bar code decoding pipeline is used to handle described bar code image;
The master control logic module is obtained processing command from described command register, according to described processing command described bar code image is transferred to described bar code decoding pipeline and decodes.
2. the portable electron device based on bar code decoding chip according to claim 1 is characterized in that, described processor system comprises:
Arithmetical unit is used to move arithmetical logic;
Program storage is stored described arithmetical logic; And
First data-carrier store stores described arithmetical unit desired data when moving described arithmetical logic, and preserves operation result
3. the portable electron device based on bar code decoding chip according to claim 2 is characterized in that, described bar code decoding system further comprises:
Second data-carrier store is used to store described bar code image;
Bus interface receives described order to described command register from described bus.
4. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that, described bar code decoding system comprises: described bus interface receives outer strip sign indicating number image to described data register from described bus, and described master control logic module transfers to described second data-carrier store according to described order with described outside bar code image.
5. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that, described bar code decoding system further comprises config memory, described config memory is electrically connected with described registers group, the computing parameter and the data of tabling look-up when being used to store described bar code decoding pipeline work, described bar code decoding pipeline is obtained described computing parameter and the described data of tabling look-up by described master control logic module and described registers group from described config memory.
6. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that, described bar code decoding system further comprises config memory, described config memory is arranged on described bar code decoding pipeline inside, the computing parameter and the data of tabling look-up when being used to store described bar code decoding pipeline work.
7. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that, described bar code decoding system comprises a plurality of described bar code decoding pipeline that is realized by hardware logic, and described a plurality of bar code decoding pipeline are carried out parallel processing to described bar code image.
8. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that described bus interface comprises that basic input and output pin, command latch enable pin, address latch enable pin, sheet select pin, write enable pin and read enable pin.
9. the portable electron device based on bar code decoding chip according to claim 3, it is characterized in that described portable electron device based on bar code decoding chip further comprises a kind of or its combination of the optical image sensor array or the external interface that are used to obtain described bar code image.
10. the portable electron device based on bar code decoding chip according to claim 1 is characterized in that, described portable electron device based on bar code decoding chip comprises mobile phone, palm PC and personal digital assistant.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685466A (en) * | 2011-01-31 | 2012-09-19 | 手持产品公司 | Adaptive video capture decode system |
| CN103049727A (en) * | 2012-12-11 | 2013-04-17 | 福建新大陆自动识别技术有限公司 | Bar code recognizing, reading and decoding module and handheld electronic device |
| CN103186758A (en) * | 2012-12-11 | 2013-07-03 | 福建新大陆自动识别技术有限公司 | Bar code reading and decoding module and handheld electronic device |
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| CN1076798A (en) * | 1992-03-16 | 1993-09-29 | 欧林巴斯光学工业股份有限公司 | Utilize the method and apparatus of CCD/CMD gamma camera to decoding two-dimensional bar code |
| JP4099854B2 (en) * | 1998-03-31 | 2008-06-11 | 株式会社デンソー | Bar code reader |
| CN101206628A (en) * | 2006-12-21 | 2008-06-25 | 安国国际科技股份有限公司 | Integration type concentrator control chip |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1076798A (en) * | 1992-03-16 | 1993-09-29 | 欧林巴斯光学工业股份有限公司 | Utilize the method and apparatus of CCD/CMD gamma camera to decoding two-dimensional bar code |
| JP4099854B2 (en) * | 1998-03-31 | 2008-06-11 | 株式会社デンソー | Bar code reader |
| CN101206628A (en) * | 2006-12-21 | 2008-06-25 | 安国国际科技股份有限公司 | Integration type concentrator control chip |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685466A (en) * | 2011-01-31 | 2012-09-19 | 手持产品公司 | Adaptive video capture decode system |
| CN103049727A (en) * | 2012-12-11 | 2013-04-17 | 福建新大陆自动识别技术有限公司 | Bar code recognizing, reading and decoding module and handheld electronic device |
| CN103186758A (en) * | 2012-12-11 | 2013-07-03 | 福建新大陆自动识别技术有限公司 | Bar code reading and decoding module and handheld electronic device |
| CN103186758B (en) * | 2012-12-11 | 2015-10-28 | 福建新大陆自动识别技术有限公司 | Bar code reading decoder module and hand-hold electronic device |
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| CN101908130B (en) | 2012-08-22 |
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