CN1086822C - Image scanner using paper detecter to scan automatically and method thereof - Google Patents
Image scanner using paper detecter to scan automatically and method thereof Download PDFInfo
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- CN1086822C CN1086822C CN96101206A CN96101206A CN1086822C CN 1086822 C CN1086822 C CN 1086822C CN 96101206 A CN96101206 A CN 96101206A CN 96101206 A CN96101206 A CN 96101206A CN 1086822 C CN1086822 C CN 1086822C
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Abstract
The present invention relates to an image scanner for scanning an image on an original copy, which comprises a controller and a detector. When a positioning original copy is detected, the controller is notified. The image scanner has the following operation steps: (1), clearing a flag of a 'new file '; (2), positioning a CCD; (3), reading data of a scanning line; (4), testing all the data of the step (3) whether to be lower than a first preset value; (5), judging the data read by the step (4) whether to be the data on one scanning line; (6), coming back to the step (3) if a result of the step (4) is negative; (7), testing whether any datum is greater than a second preset value; (8), setting the flag of the 'new file' if one datum in the step (7) is greater than the second preset value; (9), clearing the flag of the 'new file ' if the result of the step (7) is negative.
Description
The relevant a kind of image scanner of the present invention, refer to that especially the user places scanning position with original paper after, the scanner that promptly scans automatically.
General image scanner can be divided into platform-type and two kinds of drum-types.The former is scanned original paper to be placed on the scanning platform, scans then, and the detailed construction of this kind scanner can be referring to United States Patent (USP) 4,879, No. 604.The drum-type scanner scans original paper with hand-held motion scan device (original paper is motionless), and the detailed construction of this kind scanner can be referring to No. 33659, Taiwan patent.At the former platform-type scanner, the end user must push operating key and scans after placing original paper.The practice that this kind known does not also meet the requirement of wieldy (us-en-friendly).
In view of this, the invention provides an image scanner, original paper need only be placed scanning position after, must not push any startup button, this image scanner can come into operation, the work that scans.The present invention provides an image scanner to detect new file whether to be present in the method that is scanned the position in addition, original paper need only be placed scanning position after, must not push any startup button, this image scanner can come into operation, the work that scans.
That is a kind of image scanner scanning one places the method for the image on the original paper of locating, this image scanner comprises a control circuit, carrying out and a detecting device for the control image scan, this method comprises the following steps: that (1) detects a location during original paper when detecting device, notifies aforementioned control circuit; (2) after control circuit was received the information of original paper location, control circuit detected an original paper and has whether parameter value is a removing state; (3) if in the step (2) when the removing state, then scan automatically, if a set condition does not then carry out autoscan; (4) after control circuit carries out autoscan, exist parameter value to change into set condition this original paper; (5) when the location original paper did not exist, it was the removing state that there is parameter change in control circuit with this original paper.
In addition, the present invention detects new file and whether is present in the method that is scanned the position, comprises the following step:
(1) remove one " new file " flag, this " new file " flag is eliminated the new file of interval scale and is not present in and is scanned the position;
(2) charge-coupled device (CCD) is moved certain distance;
(3) read the data on the sweep trace;
(4) check the numerical data of all generations on this sweep trace whether to be lower than one first predetermined value;
(5) in the step (4) if when the numerical data of all generations all is lower than this first predetermined value, make charge-coupled device (CCD) read the data on the sweep trace, and to step (7);
(6) if step (4) is non-, get back to step (3);
(7) check whether arbitrary numerical data is arranged on this sweep trace greater than one second predetermined value;
(8) step (7) if in when having a numerical data to be higher than second predetermined value, judge that new file is present in to be scanned the position, set " new file " flag;
(9) if step (7) be non-, judge that new file is not present in to be scanned the position, remove " file newly " flag.
From below in conjunction with embodiment description with reference to the accompanying drawings, will make and address other purpose on of the present invention and advantage is more illustrated.
Brief Description Of Drawings:
Fig. 1 is the installation situation of pick-up unit among the present invention;
Fig. 2 is an original paper testing process of the present invention;
Fig. 3 is a scanning flow process of the present invention;
Fig. 4 is the generation circuit of the trigger pip 49 among the present invention;
Fig. 5 is the original paper testing process of another embodiment of the present invention;
Fig. 6 is the mode that the instruction of scanner programmed instruction and main frame internal program is linked up among Fig. 5 of the present invention.
As shown in Figure 1, image scanner of the present invention has carrier 13 and the detecting device 15 of one scan with light source 11.Detecting device 15 is mounted in about middle position of carrier 13 length directions (vertical with drawing).In scanning process carrier 13 and light source 11 left direction move.Element 17 is a reflecting optics.Figure 1 shows that this original paper 10 is about to the location status of been scanned, this moment, original paper 10 still had one section d length not to be scanned as yet, and this one is horizontal range between detecting device 15 and reflecting optics 17 central points apart from d.The h distance is the vertical ranges of detecting device 15 surfaces to original paper 10 among the figure, is about 13.7mm.One embodiment of detecting device 15 is the HOA1405 detecting device of the Chinese big (HONEYWELL) company, its induction highly is 13.7mm, when being placed in to hold, wears when locating on the platform by paper original paper 10, the infrared ray of being launched because of detecting device 15 is reflected by original paper 10 and is detected, promptly notify the firmware (firmware) in the operation circuit in the scanner, firmware promptly according to the mode of design, sends the scanning that signal carries out image.
When not settling original paper 10 on the carrying platform, because of the lid (not shown) of scanner, inside surface is a black, so infrared ray is absorbed and no reflection events, detecting device 15 is not received the infrared ray that reflects, so can not start the work of scanning.
Shown in Fig. 2 testing process of the present invention, square frame 21 comes into operation for detecting device 15, and square frame 22 detects original papers whether on platform.Whether if yes, detecting parameter signals (OBJ_PRESENT) at square frame 23 is to set (Set) state, if square frame 22 is non-, then parameter signal (OBJ_PRESENT) is removed (Clear) to square frame 24.Square frame 23 if yes, the original paper 10 that finishes of expression last scan is not removed as yet, then to square frame 25 so that get back to square frame 21.If square frame 23 is non-, then scans to ten thousand frames 26 notice control circuits, and parameter signal (OBJ_PRESENT) is set.Afterwards, to square frame 27 so that get back to square frame 21.
As relevant process step of the present invention in the scanning process among Fig. 3 the present invention.Square frame 31 is beginning.Square frame 32 carries out a line sweep for CD-ROM drive motor.Whether square frame 33 detects original paper and still is present on the platform.Be to proceed the action of square frame 32.If non-, then do not stop scanning at once, scan but continue to make carrier 13 travel distance d to carry out with the time to square frame 34.The purpose of square frame 34 as shown in Figure 1, still can be scanned into the image on the original paper 10 latter end d distances.Square frame 35 is for being back to initial square frame.
Fig. 4 is that detecting device 15 produces the circuit diagram of a trigger pip 49 to the control circuit (not shown) with the signal 41 that original paper 10 is present on the platform.Wherein, if when adopting the big company of aforesaid Chinese detecting device and original paper 10 not on platform the time, then signal 41 is zero volt, if original paper 10 is on platform the time, then signal 41 is about 2.4 volts.Element 45 is a voltage comparator, and embodiment is the LM311 element, and it is the input voltage of its two input end relatively, and first input end is connected with signal 41, and second input end then is connected with a reference voltage.When the value of first input end during, make trigger pip 49 actions and notice control circuit in the output terminal of comparer 45 greater than the value of second input end.If original paper 10 disappears when not existing, then trigger pip 49 is failure to actuate and is notified control circuit.
By aforesaid description as can be known, because the existence of detecting device, when scanning less original paper, the present invention can save sweep time.Such as, the original scan size of setting of scanister is B4, but the size of original paper is B5 or more hour on the platform, as long as detecting device does not detect original paper in square frame 33, then scanister is only walked apart from behind the d (square frame 34) more, in 35 times location of square frame, can save unnecessary time waste immediately.
Another embodiment of the present invention method below is described.Detect shown in (detection) flow process as Fig. 5 original paper of the present invention, firmware (firmware) programmed instruction (instruction) in the mat scanner middle controller, every a preset time, read file whether on scanner, detailed step is as described below.
Step 50 is beginning, step 51 is for removing " new file " flag (flag), this new file " flag is eliminated the new file of (clear) interval scale and is not present in and is scanned the position, and this " new file " flag is set the new file of (set) interval scale and is present in and is scanned the position.Step 52 is positioned to a preposition for making charge-coupled device (CCD) (CCD), embodiment moves a distance of being scheduled to this preposition (being set up on their own by the fabricator, is principle with the data that can read on the file) for the main body (Carriage) that the beacon scanning device will carry charge-coupled device (CCD).After moving to the position of this setting, in step 53, charge-coupled device (CCD) reads the data on a certain the sweep trace on (scanning) file, the numerical data that in step 54 all (all) on this sweep trace is produced is compared with first predetermined value (for example 40Hex), if when the numerical data of all generations all is lower than 40 Hex, enter step 55; If not, get back to step 53.Whether step 53,54 these loops are taken out for the ancient deed that the detection last scan is crossed.Because of the file cover inner surface is a black, when ancient deed is taken out, so charge-coupled device (CCD) can scan a complete black numerical data.
Read the data on the sweep trace in step 55 charge-coupled device (CCD), on this sweep trace of step 56 check, whether arbitrary (any) numerical data is arranged greater than one second predetermined value (for example 40Hex); If when having a numerical data to be higher than 40Hex, enter step 57; If not, to step 58.Step 57 is set " new file " flag, and step 58 is removed " new file " flag.Whether step 55,56,57,58 purpose are placed on the glass plate of position to be scanned detecting new file, and set or remove " new file " flag.
As shown in Figure 6, scanner programmed instruction and main frame internal program instruction mat personal computer system interface (SCSI) 60 is linked up among the present invention.Aspect main frame (host), main frame is with inquiry (polling) or interrupt (interrupt) step, assign the instruction (square frame 61) of the flag state of detection (inquire) scanner at set intervals, if in square frame 62, main frame from scanner obtained flag state when setting, then assign one scan instruction and scan (documaent scanning), finish the reception program of the data that obtain, get back to the initial point of inquiry (polling) step then in square frame 64 in square frame 63 main frames; If in square frame 62, main frame obtained flag state from scanner is then got back to the initial point of inquiry (polling) step when removing.
Aspect scanner, scanner at set intervals will, by personal computer system interface 60, receive the signal that main frame sends here and interrogate up-to-date flag state, in the state of square frame 65 scanners,, give main frame by personal computer system interface 60 with flag.
Claims (2)
1. utilize image scanner to detect the scan method of paper, this image scanner comprises a control circuit, and carrying out and a detecting device for the control image scan is characterized in that this method comprises the following steps:
(1) detects a location during original paper when detecting device, notify aforementioned control circuit;
(2) after control circuit was received the information of original paper location, control circuit detected an original paper and has whether parameter value is a removing state;
(3) if in the step (2) when the removing state, then scan automatically, if a set condition does not then carry out autoscan;
(4) after control circuit carries out autoscan, exist parameter value to change into set condition this original paper;
(5) when the location original paper did not exist, it was the removing state that there is parameter change in control circuit with this original paper.
2. scan method of utilizing image scanner to detect paper is characterized in that comprising the following step:
(1) remove one " new file " flag, this " new file " flag is eliminated the new file of interval scale and is not present in and is scanned the position;
(2) make a charge-coupled device (CCD) be positioned to a preposition;
(3) read data on the sweep trace:
(4) check the numerical data of all generations on this sweep trace whether to be lower than one first predetermined value;
(5) in the step (4) if when the numerical data of all generations all is lower than this first predetermined value, make charge-coupled device (CCD) read the data on the sweep trace, and to step (7);
(6) if step (4) is non-, get back to step (3);
(7) check whether arbitrary numerical data is arranged on this sweep trace greater than one second predetermined value;
(8) step (7) if in when having a numerical data to be higher than second predetermined value, judge that new file is present in to be scanned the position, set " new file " flag;
(9) if step (7) be non-, judge that new file is not present in to be scanned the position, remove " file newly " flag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101206A CN1086822C (en) | 1996-01-25 | 1996-01-25 | Image scanner using paper detecter to scan automatically and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101206A CN1086822C (en) | 1996-01-25 | 1996-01-25 | Image scanner using paper detecter to scan automatically and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155712A CN1155712A (en) | 1997-07-30 |
| CN1086822C true CN1086822C (en) | 2002-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96101206A Expired - Fee Related CN1086822C (en) | 1996-01-25 | 1996-01-25 | Image scanner using paper detecter to scan automatically and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1086822C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879604A (en) * | 1987-07-22 | 1989-11-07 | Kabushiki Kaisha Toshiba | Image reading apparatus |
-
1996
- 1996-01-25 CN CN96101206A patent/CN1086822C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879604A (en) * | 1987-07-22 | 1989-11-07 | Kabushiki Kaisha Toshiba | Image reading apparatus |
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| Publication number | Publication date |
|---|---|
| CN1155712A (en) | 1997-07-30 |
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