CN106066983A - Laser bar code scanning signal processing circuit and laser bar code scanning device - Google Patents
Laser bar code scanning signal processing circuit and laser bar code scanning device Download PDFInfo
- Publication number
- CN106066983A CN106066983A CN201610543806.4A CN201610543806A CN106066983A CN 106066983 A CN106066983 A CN 106066983A CN 201610543806 A CN201610543806 A CN 201610543806A CN 106066983 A CN106066983 A CN 106066983A
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- bar code
- laser bar
- code scanning
- 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.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
Abstract
The open a kind of laser bar code scanning signal processing circuit of the present invention and laser bar code scanning device, this laser bar code scanning device includes that laser bar code scans signal processing circuit, described laser bar code scanning signal processing circuit includes photoelectric switching circuit and multilevel signal amplification and rectification circuit, wherein said photoelectric switching circuit includes the silicon cell photelectric receiver for receiving light signal, the input that the outfan of described silicon cell photelectric receiver is connected with described multilevel signal amplification and rectification circuit connects, for described multilevel signal amplification and rectification circuit, the optical signal that described silicon cell photelectric receiver exports is changed into analog electrical signal, and be amplified described analog electrical signal obtaining digital pulse signal with shaping.The present invention can improve laser bar code scanning signal identification frequency, quickly receives signal.
Description
Technical field
The present invention relates to laser bar code scanning technique field, particularly relate to a kind of laser bar code scanning signal processing and amplifying electricity
Road and laser bar code scanning device.
Background technology
Laser bar code scanning device is prominent excellent because of its exclusive high scanning speed, wide range scanning, high reading code accuracys rate etc.
Put and be used widely.In most cases, laser bar code scanning device is all long-time use continuously, for user
Safety, it is desirable to lasing light emitter injection energy is less, and the energy finally received is the most weak.Energy owing to receiving is more weak, in order to
Improve the accuracy rate of reading code, the low sensor of Laser feedback signal identification rate is generally set and carries out opto-electronic conversion, thus cause connecing
The signal received is slower.
Summary of the invention
The main object of the present invention is to provide a kind of new pattern laser bar code scan signal processing circuit and applies this electricity
The laser bar code scanning device on road, it is intended to improve laser bar code scanning signal identification frequency, quickly receive signal.
For achieving the above object, the laser bar code scanning signal processing circuit that the present invention proposes, including opto-electronic conversion
Circuit and multilevel signal amplification and rectification circuit, wherein said photoelectric switching circuit includes the silicon cell for receiving light signal
Photelectric receiver, the input that the outfan of described silicon cell photelectric receiver is connected with described multilevel signal amplification and rectification circuit
End connects, and transfers the optical signal that described silicon cell photelectric receiver exports to mould for described multilevel signal amplification and rectification circuit
Intend the signal of telecommunication, and be amplified described analog electrical signal obtaining digital pulse signal with shaping.
Preferably, described multilevel signal amplification and rectification circuit includes that the amplification of primary signal amplifying circuit, second level signal is whole
Shape circuit and third level signal amplification shaping circuit, the input of wherein said primary signal amplifying circuit and described silicon cell
The outfan of photelectric receiver connects, and outfan is connected with the input of described second level signal amplification shaping circuit；Described
The outfan of second signal amplification and rectification circuit is connected with the input of described third level signal amplification shaping circuit；Described silicon light
The optical signal of cell photoelectric receptor output changes into analog electrical signal through described primary signal amplifying circuit optical signal to be carried out
After one time signal amplifies, optical signal being changed into analog electrical signal, output to described second level signal amplification shaping circuit carries out secondary
Signal amplifies and shaping, and the signal that secondary singal is amplified shaping by described third level signal amplification shaping circuit carries out three signals
Amplify and shaping is to obtain digital pulse signal.
Preferably, described primary signal amplifying circuit includes being connected the Current amplifier electricity formed by multiple transistor circuit
Road.
Preferably, described second level signal amplification shaping circuit includes by multiple transistor circuit, multiple audion electricity
Road connects and shaping filter electric capacity connects the signal amplification circuit formed.
Preferably, described third level signal amplification shaping circuit includes by multiple transistor circuit and multiple audion electricity
Road connects the signal amplification circuit formed and the shaping circuit being made up of operational amplifier.
Preferably, described laser bar code scanning signal processing circuit also includes for controlling described photoelectric switching circuit
Setting up, with external circuit, the adapter being connected with described multilevel signal amplification and rectification circuit, described adapter includes and external power supply
The analogue ground that earth terminal connects；Described multilevel signal amplification and rectification circuit includes digital grounding end, described analogue ground
The isolation resistance having 0 ohm it is connected with between described digital grounding end.
Preferably, described laser bar code scanning signal processing circuit also includes waking up up when scanning device dormancy instead
The infrared circuit of feedback signal, the earth terminal of described infrared circuit is by 0 ohmage with described analogue ground even
Connect.
Preferably, described laser bar code scanning signal processing circuit also includes that the motor for detecting motor speed is surveyed
Speed circuit, the earth terminal of described motor speed measuring circuit is connected with the earth terminal of described infrared circuit.
The present invention also provides for a kind of laser bar code scanning device, and described laser bar code scanning device includes that laser bar code scans
Signal processing circuit, described laser bar code scanning signal processing circuit includes that photoelectric switching circuit and multilevel signal are put
Big shaping circuit, wherein said photoelectric switching circuit includes the silicon cell photelectric receiver for receiving light signal, described
The input that the outfan of silicon cell photelectric receiver is connected with described multilevel signal amplification and rectification circuit connects, for described
The optical signal that described silicon cell photelectric receiver exports is changed into analog electrical signal by multilevel signal amplification and rectification circuit, and by institute
State analog electrical signal amplification and shaping obtains digital pulse signal.
In technical solution of the present invention, the bar code scan optical signal that will be received by the silicon cell in photoelectric switching circuit
Export to multistage signal amplification shaping circuit after being converted into electric analoging signal, be converted to discernible number by amplifying with shaping
Word pulse signal, thus improve signal identification frequency, quickly receive signal.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the circuit block diagram of laser bar code of the present invention scanning signal processing circuit；
Fig. 2 is the circuit theory of silicon cell photelectric receiver in laser bar code of the present invention scanning signal processing circuit
Figure；
Fig. 3 is the circuit theory diagrams of adapter in laser bar code of the present invention scanning signal processing circuit；
Fig. 4 is photoelectric switching circuit and the circuit of primary amplifying circuit in laser bar code signal processing circuit of the present invention
Schematic diagram；
Fig. 5 is the circuit theory of second level amplification and rectification circuit in laser bar code of the present invention scanning signal processing circuit
Figure；
Fig. 6 is the circuit theory of third level amplification and rectification circuit in laser bar code of the present invention scanning signal processing circuit
Figure.
Drawing reference numeral illustrates:
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
It is to be appreciated that directional instruction in the embodiment of the present invention (such as up, down, left, right, before and after ...) is only used
In explaining relative position relation between each parts, motion conditions etc. under a certain particular pose (as shown in drawings), if should
When particular pose changes, then directionality instruction changes the most therewith.
It addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for describe purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can express or implicitly include at least one this feature.In describing the invention, the containing of " multiple "
Justice is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " connects ", " fixing " etc. should be interpreted broadly,
Such as, " fixing " can be fixing connection, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be
Electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection or two of two element internals
The interaction relationship of individual element, unless otherwise clear and definite restriction.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in the present invention.
It addition, the technical scheme between each embodiment of the present invention can be combined with each other, but must be general with this area
Based on logical technical staff is capable of, when technical scheme combination occur conflicting maybe cannot realize time will be understood that this
The combination of technical scheme does not exists, the most not within the protection domain of application claims.
With reference to Fig. 1, the present invention proposes a kind of laser bar code scanning signal processing circuit, including photoelectric switching circuit 10
With multilevel signal amplification and rectification circuit 20, wherein said photoelectric switching circuit 10 includes the silicon cell for receiving light signal
Photelectric receiver D10, the outfan of described silicon cell photelectric receiver D10 is with described multilevel signal amplification and rectification circuit 20 even
The input connect connects, and is exported by described silicon cell photelectric receiver D10 for described multilevel signal amplification and rectification circuit 20
Optical signal change into analog electrical signal, and be amplified described analog electrical signal obtaining digital pulse signal with shaping.
Above-mentioned silicon cell photelectric receiver D10 can be configured according to actual needs, such as, in the present embodiment,
It is referred to Fig. 2, above-mentioned silicon cell photelectric receiver D10 and includes silicon cell D11 and transistor circuit, described silicon photoelectricity
Pond D11 receives optical signal and produces photogenerated current, and described photogenerated current carries out electricity by transistor circuit U26, U27 and U28
Banish big rear output by P3 to amplify further and shaping to multistage amplifier circuit 20, and analog electrical signal is converted to numeral
Pulse signal.
In the present embodiment, above-mentioned silicon cell D11 is the semiconductor device directly converting optical energy into electric energy, described silicon light
Battery D11 includes large-area PN junction, and wherein the PN junction of silicon cell D11 is when by illumination, inspires in silicon cell D11
Light induced electron one hole pair, under the effect of internal electric field, the light induced electron assembly in N district makes N zone negative electricity, and light induced electron is at P
The assembly in district makes P zone positive electricity, produces photo-induced voltage between P district and N district, and silicon cell D11 loop produces photogenerated current.Separately
On the one hand by multistage amplifier circuit 20 optical signal that silicon cell D11 produces changed into analog electrical signal, and amplification with
Shaping obtains complete digital pulse signal, increases the amplification of signal code and frequency, and this kind of scheme improves identification
Frequency, simultaneously high because of signal integrity degree, facilitate digital pulse signal transmission and decode to decoding circuit, improve resolution.
In technical solution of the present invention, by the silicon cell photelectric receiver D10 in photoelectric switching circuit, optical signal is turned
Export to multistage signal amplification shaping circuit after changing the signal of telecommunication into, be converted to discernible digit pulse letter by amplifying shaping
Number, thus improve signal identification frequency, quickly receive signal.
Please with reference to Fig. 3 to Fig. 6, described multilevel signal amplification and rectification circuit 20 include primary signal amplifying circuit 21,
Second level signal amplification shaping circuit 22 and third level signal amplification shaping circuit 23, wherein said primary signal amplifying circuit 21
Input be connected with the outfan of described silicon cell photelectric receiver D10, outfan and described second level signal amplify whole
The input of shape circuit 22 connects；The outfan of described second level signal amplification shaping circuit 22 amplifies with described third level signal
The input of shaping circuit 23 connects；The optical signal of described silicon cell photelectric receiver D10 output is through described primary signal
Amplifying circuit 21 carries out, after a signal amplifies, optical signal is changed into analog electrical signal, and output is amplified whole to described second level signal
Shape circuit 22 carries out secondary singal and amplifies and shaping, and secondary singal is amplified shaping by described third level signal amplification shaping circuit 23
Signal carry out three signals and amplify and shaping is to obtain digital pulse signal.It is sequentially connected with by three-stage amplifier, by electricity
Banish big, signal amplifies, signal shaping, defines laddering signal amplification procedure, circuit function effects at different levels are clearly demarcated.
Preferably, described primary signal amplifying circuit 21 includes being connected, by multiple transistor circuit, the Current amplifier formed
Circuit (unmarked).Described current amplification circuit includes 8 transistor circuit, wherein the 3rd of the first transistor circuit U1
Hold input and the output of described silicon cell photelectric receiver D10 as described current amplification circuit after being connected with the 4th end
End connects, by the photogenerated current of silicon cell photelectric receiver D10 generation through the first transistor circuit U1, the second twin crystal
Body pipe circuit U 2 and the 3rd transistor circuit U3 is the most electric by described 3rd transistor circuit U3 the first end after amplifying
Hold C6 and be connected to the 5th end of the 5th transistor circuit U5, first end of described 5th transistor circuit U5, the described 7th
4th end of transistor circuit U7 is connected with first end of slide rheostat RV1 after connecting, described 5th transistor circuit
Second end of U5 is connected with second end of described slide rheostat RV1.First end of the 6th transistor circuit U6, the second end and
6th end of the 8th transistor circuit U8 connects fixed power source V+ by resistance respectively, when the resistance of slide rheostat RV1 diminishes
Time, electric current increases, and described primary amplifying circuit 20 current gain becomes big.6th end of described 6th transistor circuit U6 and institute
State the 4th end of the 4th transistor circuit U4 outfan and described second level circuit 22 defeated as primary amplifying circuit 21
Enter end to connect.
Preferably, described second level signal amplification shaping circuit 22 includes by multiple transistor circuit, multiple audion
Circuit connects and shaping filter electric capacity connects the signal amplification circuit formed.Described shaping filter electric capacity has stopping direct current, logical friendship
The effect of stream, can filter multiple harmonic in the voltage after rectification, export clean DC voltage.
Preferably, described third level signal amplification shaping circuit 23 includes by multiple transistor circuit and multiple audion
Circuit connects the signal amplification circuit formed and the shaping circuit being made up of operational amplifier A.Operational amplifier is to have very
The circuit unit of high-amplification-factor, utilizes it to amplify signal and can solve common transistor circuit signal amplification factor well not
Enough and that circuit is complicated problem, decreases the use of transistor circuit or pair transistor, easy to use, passes through operation amplifier simultaneously
Device combines with transistor amplifier, adds the flexibility ratio of circuit.In the present embodiment, above-mentioned operational amplifier A uses
Components and parts can be configured according to actual needs, it is preferable that described operational amplifier A use SGM8632 low noise operational
Amplifier.
In the present embodiment, due to above-mentioned primary signal amplifying circuit 21, second level signal amplification shaping circuit 22 and the 3rd
Level signal amplification shaping circuit 23 uses discrete component to be laid out arranging.Amplifying circuit particularly pre-amplification circuit is normal at present
Use integrated transporting discharging to carry out signal amplification, but the bulk resistor of integrated transporting discharging is more much bigger than discrete component, the collection that circuit structure is similar
Become big 2-5 times of the noise ratio discrete component of amplifier, therefore use discrete component to be laid out arranging so that circuit has more
Low noise voltage.
Further, combine the most in the lump with reference to Fig. 2, it is preferable that described laser bar code scanning signal processing circuit is also
Including for controlling described photoelectric switching circuit 10 and described multilevel signal amplification and rectification circuit 20 and external circuit (not shown)
Setting up the adapter 50 connected, described adapter 50 includes the analogue ground being connected with external power supply earth terminal；Described multistage
Signal amplification shaping circuit 20 includes digital grounding end, and being connected between described analogue ground with described digital grounding end has 0 Europe
The isolation resistance of nurse.Described adapter 50 is for photoelectric switching circuit 10 and multilevel signal amplification and rectification circuit 20 and external circuit
Set up connect, external circuit include in addition to photoelectric switching circuit 10 and multistage amplifier circuit 20 for laser bar code scanning
Other circuit, can be processor circuits, can be decoding circuits.Described adapter receives the control letter of processor circuit
Number, corresponding control circuit starts.The mould that described photoelectric switching circuit 10 is generated by multistage amplifier circuit described in the present embodiment
Intending exporting digital pulse signal after signal shaping is amplified, described adapter passes through the control command of processor circuit by multilevel signal
The digital pulse signal of amplification and rectification circuit 20 output is transferred to decoding circuit and is decoded；First pin of described adapter 50
End is connected with described analogue ground and described digital grounding end by 0 ohmage after being connected with the second leads ends respectively, 0 Europe
Nurse isolation resistance is equivalent to the narrowest current path, effectively limits the loop electricity between multistage amplifier circuit 20 and other circuit
Stream, it is suppressed that current noise, solves digital grounding end and the problem of analogue ground single-point grounding, will not constitute ground wire and return
Road, it is to avoid cause the skew of current potential.
Specifically, described laser bar code scanning signal processing circuit also includes for detecting whether there is scanning object
Infrared circuit 30, the earth terminal of described infrared circuit 30 is connected with described analogue ground by 0 ohmage.
Described infrared circuit 30 includes infrared receiving circuit 31 and infrared transmitting circuit 32, and described infrared transmitting circuit 32 sends red
Outside line, described infrared receiving circuit 31 receives infrared signal, wakes up feedback signal up when scanning device dormancy.
Specifically, described laser bar code scanning signal processing circuit also includes that the motor for detecting motor speed is surveyed
Speed circuit 40, the earth terminal of described motor speed measuring circuit is connected with the earth terminal of described infrared circuit.Described motor speed measuring
Circuit 40 includes Hall element (not shown), by the Magnet (not shown) feedback electricity in the mirror group of Hall element induction machine four sides
Machine rotating speed, controls motor speed.3rd pin termination fixed power source V+ of described adapter 50, the 4th pin termination Hall element
Control signal CNP1, the 5th pin termination infrared receiver control signal CNP2, the 6th pin termination infrared emission control signal
CNP3；When described adapter 50 receives motor speed control signal CNP1, and described Hall element starts；When adapter 50 receives
To infrared receiver control signal CNP2, the infrared receiving terminal (not shown) in described infrared receiving circuit 31 starts；When described company
Connect device 50 and receive infrared emission control signal CNP3, the infrarede emitting diode (not shown) in described infrared transmitting circuit 32
Send infrared ray.
In the present embodiment, above-mentioned CNP1, CNP2, CNP3 are all from the input/output interface of processor circuit, and other are implemented
Example can connect other external circuits according to actual needs or other interfaces are configured.
Preferably, the voltage of described fixed power source V+ is 5V.
Partial circuit port and other circuit port short circuits in the present invention, such as: the 4th of described primary amplifying circuit 21
4th end of transistor circuit U4 passes through 20-3 short circuit, final and the 20th transistor circuit of third level amplifying circuit 23
The three-terminal link of U20, forms 20-3 network, it is achieved signal transmits, and repeats the most one by one at this.
The present invention also proposes a kind of laser bar code scanning device, and described laser bar code scanning device includes that laser bar code scans
Signal processing circuit, this laser bar code scanning signal processing circuit includes that photoelectric switching circuit 10 and multilevel signal are put
Big shaping circuit 20, wherein said photoelectric switching circuit 10 includes the silicon cell photelectric receiver for receiving light signal
D10, the input that the outfan of described silicon cell photelectric receiver D10 is connected with described multilevel signal amplification and rectification circuit 20
Connect, for described multilevel signal amplification and rectification circuit 20, the optical signal that described silicon cell photelectric receiver D10 exports is turned
For analog electrical signal, and described analog electrical signal amplifies and shaping obtains digital pulse signal.Silicon cell photelectric receiver D10
It is the semiconductor device directly converting optical energy into electric energy, the current signal produced during optical signal being converted into the signal of telecommunication
The most small, waveform frequency is the most lack of standardization, is amplified its current signal by multistage amplifier circuit and shaping obtains completely
Digital pulse signal, this kind of scheme improves identification frequency, simultaneously high because of signal integrity degree, facilitates digital pulse signal and passes
Transport to decoding circuit decoding, improve resolution.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (9)
1. a laser bar code scanning signal processing circuit, it is characterised in that include photoelectric switching circuit and multilevel signal
Amplification and rectification circuit, wherein said photoelectric switching circuit includes the silicon cell photelectric receiver for receiving light signal, institute
State the input connection that the outfan of silicon cell photelectric receiver is connected with described multilevel signal amplification and rectification circuit, for institute
State multilevel signal amplification and rectification circuit and the optical signal that described silicon cell photelectric receiver exports is transferred to analog electrical signal, and will
Described analog electrical signal is amplified obtaining digital pulse signal with shaping.
2. laser bar code scanning signal processing circuit as claimed in claim 1, it is characterised in that described multilevel signal is put
Big shaping circuit includes that primary signal amplifying circuit, second level signal amplification shaping circuit and third level signal amplify shaping electricity
Road, the input of wherein said primary signal amplifying circuit is connected with the outfan of described silicon cell photelectric receiver, output
End is connected with the input of described second level signal amplification shaping circuit；The outfan of described second level signal amplification shaping circuit
It is connected with the input of described third level signal amplification shaping circuit；The optical signal warp of described silicon cell photelectric receiver output
Cross described primary signal amplifying circuit optical signal is changed into analog electrical signal to carry out, after signal amplifies, optical signal is changed into mould
Intending the signal of telecommunication, output to described second level signal amplification shaping circuit carries out secondary singal and amplifies and shaping, and the described third level is believed
Secondary singal is amplified the signal of shaping and is carried out three signals and amplify and shaping is to obtain digit pulse letter by number amplification and rectification circuit
Number.
3. laser bar code scanning signal processing circuit as claimed in claim 2, it is characterised in that described primary signal is put
Big circuit includes being connected, by multiple transistor circuit, the current amplification circuit formed.
4. laser bar code scanning signal processing circuit as claimed in claim 2, it is characterised in that described second level signal
Amplification and rectification circuit includes being connected by multiple transistor circuit, multiple transistor circuit and shaping filter electric capacity connects and formed
Signal amplification circuit.
5. laser bar code scanning signal processing circuit as claimed in claim 2, it is characterised in that described third level signal
Amplification and rectification circuit include by multiple transistor circuit and multiple transistor circuit connect the signal amplification circuit formed and
The shaping circuit being made up of operational amplifier.
6. laser bar code scanning signal processing circuit as claimed in claim 1, it is characterised in that described laser bar code is swept
Retouch signal processing circuit also include for control described photoelectric switching circuit and described multilevel signal amplification and rectification circuit with
External circuit sets up the adapter connected, and described adapter includes the analogue ground being connected with external power supply earth terminal；Described
Multilevel signal amplification and rectification circuit includes digital grounding end, and being connected between described analogue ground with described digital grounding end has 0
The isolation resistance of ohm.
7. the laser bar code scanning signal processing circuit as according to any one of claim 1 to 6, it is characterised in that institute
State laser bar code scanning signal processing circuit and also include waking up up the infrared detection of feedback signal when scanning device dormancy
Circuit, the earth terminal of described infrared circuit is connected with described analogue ground by 0 ohmage.
8. the laser bar code scanning signal processing circuit as according to any one of claim 1 to 6, it is characterised in that institute
State laser bar code scanning signal processing circuit and also include the sensor circuit for detecting motor speed, described motor speed measuring
The earth terminal of circuit is connected with the earth terminal of described infrared circuit.
9. a laser bar code scanning device, it is characterised in that described laser bar code scanning device be include as claim 1 to
Laser bar code scanning signal processing circuit described in 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543806.4A CN106066983A (en) | 2016-07-11 | 2016-07-11 | Laser bar code scanning signal processing circuit and laser bar code scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543806.4A CN106066983A (en) | 2016-07-11 | 2016-07-11 | Laser bar code scanning signal processing circuit and laser bar code scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106066983A true CN106066983A (en) | 2016-11-02 |
Family
ID=57206925
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610543806.4A Pending CN106066983A (en) | 2016-07-11 | 2016-07-11 | Laser bar code scanning signal processing circuit and laser bar code scanning device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588419A (en) * | 2004-08-19 | 2005-03-02 | 杜瑞 | Bar code scanner and its bar cod scanning method |
| US20110090383A1 (en) * | 2009-10-19 | 2011-04-21 | Tetsuya Yamaguchi | Solid-state image sensing device and method of manufacturing the same |
| CN201955798U (en) * | 2011-02-28 | 2011-08-31 | 西安富立叶微电子有限责任公司 | Laser barcode scanning and reading device |
| CN102169921A (en) * | 2011-01-06 | 2011-08-31 | 长春理工大学 | Preparation technology for increasing effective photosensitive area of photoelectric material |
| CN102831374A (en) * | 2012-07-30 | 2012-12-19 | 深圳市江波龙电子有限公司 | Bar-code scanner and photoelectric signal processing circuit thereof |
| CN103400098A (en) * | 2013-07-25 | 2013-11-20 | 上海电机学院 | Scanning device and scanning method for scanning bar code invoice |
-
2016
- 2016-07-11 CN CN201610543806.4A patent/CN106066983A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588419A (en) * | 2004-08-19 | 2005-03-02 | 杜瑞 | Bar code scanner and its bar cod scanning method |
| US20110090383A1 (en) * | 2009-10-19 | 2011-04-21 | Tetsuya Yamaguchi | Solid-state image sensing device and method of manufacturing the same |
| CN102169921A (en) * | 2011-01-06 | 2011-08-31 | 长春理工大学 | Preparation technology for increasing effective photosensitive area of photoelectric material |
| CN201955798U (en) * | 2011-02-28 | 2011-08-31 | 西安富立叶微电子有限责任公司 | Laser barcode scanning and reading device |
| CN102831374A (en) * | 2012-07-30 | 2012-12-19 | 深圳市江波龙电子有限公司 | Bar-code scanner and photoelectric signal processing circuit thereof |
| CN103400098A (en) * | 2013-07-25 | 2013-11-20 | 上海电机学院 | Scanning device and scanning method for scanning bar code invoice |
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Application publication date: 20161102 |
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