TW476211B - Image scanning device with multiple detectors - Google Patents

Abstract

Provided is an image scanning device with multiple detectors. It adds at least a detector, besides the existed red, green and blue detectors, and minimum amounts to four sets. In this invention, the additional detector can be the infrared rays, ultraviolet rays or non-filter mirror detector. The arrangement method of the additional detector device can be divided into the odd and even group. The handling method of the analog/digital converter can be dot switching or line switching according to additional groups. Besides, it can add groups of shading correction or gamma mapping or remains the original three groups. The handing and arrangement method of detecting data acquired can be a group or divided into more-than two groups. The arrangement can be implemented by hardware or software.

Description

V. Description of the invention (1) The field of the invention 1 device, especially related to the variety of the background of the invention. These devices may be a facsimile, or a reflection and lens group as shown in its internal structure. Light sensor 2 6 An analog-to-digital converter number is converted to a digital signal. It is a special-purpose integrated memory 3 2 and is composed of interfaces (• analog-to-digital converters) and hardware ((sof tware) in many different ways. The device is in a state of poor 4 = desktop or portable color =: split. Figure-is a general penetrating scan, a light source 20 shines on the image 36 through the focus of the mirror 2 to a The light sensor (ph〇t () detect〇r converts the received light jg number into a current signal and outputs it to 28, the analog-to-digital converter 28 outputs the input analog signal to a control circuit 3, where the control Circuit-to-circuit (ASIC). The control circuit 30 stores the data by modifying the compensation data 38 before the signal can be output to the host via interface 34. The data output from 40 ^ 28 can also be firmware. hardware) or software on the host (h0st). The main scanning device is the photo sensor 2 β in the first picture, and the photo sensor 26 is linear, usually a charge coupling device. ("Stark ^ —c〇 叩 丨 with

Page 4 476211 V. Description of the invention (2)

Device; C C D). As shown in the second figure, a light sensor 26 has a total of N sensors (sens 0r). Each sensor corresponds to a pixel (pi X e 1), and the width of the sensor is an optical resolution. The unit is dots per inch (dpi). Linear light sensors are traditionally three groups of sensors: red, green, and blue. They have red, green, and blue filters to obtain the color information of the scanned object. To obtain additional information in the traditional scanning method, the scanning light source (for example, cut from white light to infrared) is scanned or scanned twice, which will increase the time or cause the difference between the two scanning positions. 5-3 Purpose and Summary of the Invention: In view of the above-mentioned backgrounds of the invention, the traditional red, green and blue sensors have many shortcomings. The main purpose of the present invention is to add at least one sensing device to provide, for example, infrared, Ultraviolet filters or no filters as a source of additional information. In this way, in addition to red, green, and blue color data, it can also provide thermal infrared data as a repair image (such as scratches on the image), or use ultraviolet to obtain additional information about the scanned object as post-processing. The basis of image data. Another object of the present invention is to obtain additional information in one scan. Since one scan can obtain additional information, it can also reduce the control circuit of light source switching.

Page 5 476211 V. Description of the invention (3) Another object of the present invention is to reduce the cost, because the additional sensing group does not need to increase the light source, and increasing the light source will increase the cost. According to the above-mentioned purpose, the present invention provides a plurality of groups of image scanning devices, including a light source, a sensing device, a bit converter, a control circuit, a memory device, and a compensation data. Output interface. The light source is used to illuminate a document to be scanned. Sensing device ^: Receives the light irradiated on the document to be scanned and then converts it into ^ Cry J ... Contains-a red sensor, a green sensor, outside the line sense: device sense ;: line = the first sense of the line The detector is selected from the red :. Each group of sensors f in the sensing device is arranged in order, the public chain is added, and the “7” force type is divided into three groups, which are arranged in a wrong arrangement. Class fee turns out, 苴 i receives the output signal of the sensing set and converts it into a helmet. 72;; point switching :, in a way selected from the sensing by each group = control circuit with "connector line" Switch between the groups of people. The memory device is a signal connected to the control = analog digital converter output. material. The path in the memory is used to store and arrange in the control circuit. The second-:: second series is selected from each group of sensors: used to control the circuit; Section = interface is connected to the control The circuit mouth was turned out to a host. system

5. Description of the invention (4) 5-4 Inventive pen Λ is a detailed explanation: In addition to the detailed description of the present invention, if the present invention is in the sense and monitor color information, with or without the arrangement of the sensors, The arrangement is to arrange and increase the arrangement in a number of enlightenments. The scope of the present invention is not limited to the embodiments, and can be limited, which will be described in detail below. # Extensively in other implementations, in addition to its later patent model, it is ^, and it is clear that the main detection device is the sensor of the sensor filter sequence mainly. Sequentially monitor color sensing and set a set of red sensors. Staggered rows. Each kind of sensor provides a red sensor of multiple sets of sensors. Besides red, it may be at least a sensor. Add the following three columns to the square, and add a set of infrared sensing and sensor types to the sensor: in order, each sensor and the added sensor will be sensed as a group, and the green will be grouped into two groups. It is an image scanning sensor with the arrangement of each sensor. The green sensor is obtained by the acquirer and ultraviolet rays. The groups are arranged in groups. The red sensors are arranged in groups. The difference is half of the difference and half of the difference are the advantages of the device, the main sensor, the additional sensor, the row between the sensors, and the green row. Grouping sensors, sensors added in the form of pixels will be different from the traditional t = f4 in the subsequent circuit and processing. First of all, in terms of analog-to-digital converters, 的 3 2 in data processing is the point switch between the sensors of each group, or f of each sensor. In addition, the control circuit can control the π /,,,,,,,,,,,,,,,,,,,,,, and then of the color sensors ’, green sensors, and blue sensors’

V. Description of the invention (5) Signals of ____, or red & $, and additional sensors: u color u device, blue sensor, and can be arranged between the sensors The data of the wrong storage mode of the writer's office can include the signal used by the red tones for correction and the signals measured by the additional sensors. i ', state, color monitoring sensor, as for the other components are toilet two. The essential changes are as described above. From the features of the invention described above ... the elements of the scanner are the same. By the preferred embodiment. 9 An example of the present invention is shown in the second figure. In the example, Bo is an example of the second increase in the number of square-color sensing groups sequentially added to increase the number of squares. Each of the inventions ... Budi's group of red sensors: a wide array of blue sensors in a variety of arrangements, Yo is the first group of green sensors :: and then only boost one group, ^ Lidi ° "sensor" in this implementation group of green clam sensors, B1 is the second = second group red sensor, G1 sensor. Each,.? One, and monitor color sensors, Y1th-fine-set of sensors from N pixels to J1. -Group = The figure shows the way that the sensors of each group are in accordance with:,?,: Color sensor, green sensor sequence, and 乂. Sensors Sensors are aligned. The third picture B is a monitor color sensor, and an enhancement. The sensors are arranged in groups according to the red one and the other one, and the additional sensors are paired with two green sensors and two half-lattice pixels arranged in blue. Here j is divided into a group, and The resolution of each scan. The purpose of the third C picture and the grid pixel is to indicate the way in which the sensors of each group are arranged interactively. (6) The five-column way. In this—the two groups of sensor cry 3 pictures are not In the red sensor, there are two groups of ^ and 1 ^. The scan resolution of the scan is ^ ^. The difference is a half-grid pixel arrangement, also because it can increase and increase the sense; cry :, other green sensors' M color The sensors are: different; columns; Ϊ 疋 according to the arrangement of the red sensors in order to arrange the advantages, -Qi Yi Zhao ii can have a resolution in the resolution t or other aspects according to the needs of the product characteristics And the decision. In terms of the circuit after the output of the added sensor and the converter of the processing method, the type of data input is point-to-point switching between each group of sensors. Click a pixel between each group of sensors, and then The last data processed for each sensor group is the red sensor One pixel Go (1)) 'and the added sensor. The first sensor is the second pixel with G0 (2), and the blue sensor is the second pixel. The second pixel is Ya ( 2. Up to the last pixel. When a data is added, a set of data will be added, which will have an impact. First, there can be two processing methods when analog digital. The first-change, the second is between each group of sensors. Line switching is to first process the second pixel of the first group of sensors of each group, and always one pixel. As shown in Figure A, the first pixel of the first device R0 (1 ), Green sense, the first pixel of the blue sensor (J one pixel Υο (1). Then process (2) 'the second pixel of the green sensor, two pixels Bo (2), And the added ^. That's it for every sensor

Page 9 476211 V. Description of the invention (7) For example, the green sensor, all the pixel information, all the way to the last sensor, such as the added sensor, all the pixel information. For example, as shown in Figure B, the analog-to-digital converter first processes each pixel of the red sensor {Ro (1), Ro (2), Ro (3) ..., Ro (η)}, and then sequentially Each pixel of the green sensor {Go (1), Go (2), Go (3)…, Go (η)}, each pixel of the blue sensor {Bo (1) , Bo (2), Bo (3) ..., Bo (η)}, and each grid pixel of the added sensor {Yo (1), Yo (2), Yo (3) ..., Υο (η )}. Then, after the control circuit receives the data output by the analog-to-digital converter, the data output to the memory can be controlled only by the red sensor, the green sensor, and the signal measured by the blue sensor, or red Signals measured by sensors, green sensors, blue sensors, and additional sensors. The main purpose is to reduce the signal measured by the added sensor when the memory capacity is insufficient, because this part of the signal is mainly used for image correction, not really used for image care. Show. In addition, the compensation data used for correction can include red sensors, green sensors, and blue sensors, or red sensors, green sensors, blue sensors, and additional sensors. There are two ways to measure the signal from the sensor. The traditional image correction only uses the signals measured by the red sensor, the green sensor, and the blue sensor. If there is other interference and the influence is not received by the traditional correction method, then the information measured by the added sensor can be used as another calibration in the present invention.

, Compensation information. Furthermore, § the memory, storage, and added sensing of the memory ::; one of the types of sensors: K memory, or the line between the sensors Yes "to manage each group of sensors: the second group of sensors is stored in the same way. The second group of picture elements is two; shells; buckets, and then the pixel data of each group is processed. The last set of each / sensor R0 (.1) 'The first image of the green sensor ^ ^ First save the first pixel One: Prime Bo (1)' Sense '1)' Blue sensor The data of the first sensor. Then, it stores the red sensor, a pixel Yo (1), the second sensor of the green sensor, the second pixel, Ro (2), the first pixel, and the booster. = This goes to the end of each sensor-the data for (stop 2 :). The independent storage of the & ^ $ ^ 1 sensor is to separate the traditional &## 色 感 心, and the blue sensor Data ^ Red sensor, one bank (bank) in the green body, and the other one row stored in the dagger body in the form of adding, specializing, and j. Such as the fifth figure B ~ two devices Λ A single pixel of data R0 (丨) Green two sensors' sensing Cloth blue red sensors - of B〇 picture elements (1;,:: Ί hormone Go (1),

Ro (2), the second pixel of the green sensor G0 ^, the second pixel of the second pixel B0 (2), and all the way to the red: (2) 'M color sensor The last-pixel data is stored in memory-and ___ rows of blue sensors. And then

Page 11 Fifth, the description of the invention i The sensor of the first sensor, the first picture element γ pixel Yo (2), has been added, the second sensor of the added sensor — until the last of the sensor of the sensor One pixel γ0 (η)] is another row stored in the memory. ϋ 素 Yo Cn) The data storage of pixels is arranged in line between the sensors of each group, and then the data of each pixel stored in w is recorded as shown in the figure c of the first sensor. For example, the fifth-lattice pixel (r: (1) R: (m type is the green sensor according to the order of the red sensor). (3) ..., r0 (..., then 6. (3b, two) ?, mother two l · B〇 (2), Bo (3) B〇t per T grid pixels {B〇〇 state per grid pixels {Y〇 (1) γ 〇r ° and increased sensing)} position. '(2), Yo (3) · .., Υ〇 (η Set color increase (for capital increase if combined with the data and the sum after Provide information outside, like the higher-level foreign investment on the source, such as Yuan Geng ’s Institute, can be scratched :: The present invention is mainly to add at least one set of sensing equipment, UV filters, or no filters to add In addition to this, the red, green, and blue color of the scannable field can provide infrared data such as heat as a repair image; :: The outside line is based on the additional information of the scanned object like Beacon. In addition, due to-times The control circuit that can reduce the light source switching " °

Page 12 is only the preferred embodiment of the present invention, 476211 V. Description of the Invention (ίο)

Define the scope of patent application for the present invention; all other equivalent changes or modifications made without departing from the spirit of the invention disclosed in the present invention shall be included in the scope of patent application described below.

Page 476211 Brief description of the diagram The first diagram is a schematic diagram of the internal structure of a scanner; the second diagram is a schematic diagram of a calibration target; the third diagram is a schematic diagram of the arrangement of each group of sensors, of which the third A diagram is Introduce the way in which the sensors are arranged in sequence. The third picture B shows the way in which the sensors are arranged in groups. The third picture C shows the way in which the sensors are arranged interactively. The fourth picture is the analog digital Schematic diagram of the converter processing signals, where the fourth diagram A shows the point switching between each group of sensors, the fourth diagram B shows the line switching between each group of sensors; and the fifth diagram is the memory storage mode Schematic diagram, where the fifth diagram A is to show the point arrangement storage between each group of sensors, the fifth diagram B is to show the added sensors are stored independently, and the fifth diagram C is to show the line arrangement between each group of sensors . Symbols of the main parts: 1 0 scanner 2 0 light source 2 2 reflector 2 4 lens 2 6 light sensor

476211

Page 15

Claims (1)

… Applicable patent scope • An image scanning device, the device includes at least: a light source for R77 Λ f to illuminate a document to be scanned; a sensing device, # and then converted into an electron ^ to receive the irradiation in the to be scanned The light sensor for scanning the file,-the green sensor ί output Λ, the sensor device at least includes-the red sensor of the two sensors =, a blue sensor and a first sensor, the arrangement, Group arrangement. The arrangement of the Q-group sensing states is selected from the group consisting of a sequence of analog digits 交错 = and a staggered arrangement; replaced with a digital signal, the robbery system receives the signal output by the sensing device and transfers it. A control circuit field and signal; to receive and process data in one of the memory channels of the analog digital converter; and connected to the delta control circuit, which is used to access the output interface of the control circuit Data output to the host ^ dagger circuit 'is used to control the circuit 2 · If the scope of the patent application is grouped and interlaced, a shirt-like image scanning device is used, in which the above points are separated by half a pixel arrangement . 3. If the i-item of the patent application group, a sensor is selected from the image scanning device of red and black, in which the above-mentioned sensor without a filter is added. J sensor, ultraviolet sensor, and ,, also like * I know the group. Page 16 ------ 6. Scope of Patent Application 4 · If the scope of patent application is ^^-a ~-than the signal from the digital converter turns out ~ like a scanning device, of which the above-mentioned switching, and the various The group sensing ς is derived from the group formed by the point-to-line switching between the sensors of each group. 5. If the storage mode and the image scanning device in the first memory of the patent application scope are scanned and stored, 筮 A 1 糸 is selected from the independent storage of AA /, T 丄 in the 5H2 production device: ΐ The points are arranged between the sensors: Zijin, and Chengcheng. And the line between the sensors of each group 6. For example, if you apply for a patent, Fan Yuan, Yi Ti Shuang II, where the above control is tolerated, and the blue sensor is controlled by the red sensor, … The measured signal. 7: If the signal measured by the sensor in the patent application No. 6 is used as a Y field device, it also contains the information of using the / technical circuit. 8: If the scope of patent application is the first! The shadow of item "1. The compensation information includes at least the measured by the Xintian device 'which is used in the above and the blue sensor; 4 the rigid sensor, the green sensor 92 as in the patent application || 15th 8th The signal measured by the image brother-sensor of the item is used as a field device, and it also includes the use of this device. · If the image of the patent application for the first item of the field ____ field 4 is set, it also contains a reflection only compensation data 圮 feI is connected to the control circuit, and the data in the system, J: medium h, +,-^ ^, is used to access the control power stored in the record k by the long time π, 31. The mode is selected from the sensors in each of the four sets of fields.] ≪ y 1 2 rows 歹 J storage first-the sensors are stored independently, Page 18 476211 VI. The scope of the patent application and the group consisting of the line array storage between the sensors; and an output interface connected to the control circuit for outputting the data in the control circuit to a host . 1 3. The image scanning device according to item 12 of the scope of patent application, wherein the above-mentioned cluster arrangement and staggered arrangement are arranged by a half pixel difference. 14. The image scanning device according to item 12 of the scope of patent application, further comprising using the signal measured by the first sensor as data output by the control circuit. 1 5. The image scanning device according to item 12 of the patent application scope, wherein the compensation data used for the correction includes at least the data measured by the red sensor, the green sensor, and the blue sensor. Signal. 16. The image scanning device according to item 15 of the scope of patent application, further comprising using the signal measured by the first sensor as compensation data for the correction. 17. The image scanning device according to item 12 of the patent application scope further comprises a reflector for reflecting light passing through the document to be scanned. 1 8. The image scanning device according to item 12 of the patent application scope, further comprising a set of lenses for focusing and projecting the light beam passing through the reflecting mirror on the sensing device. Page 19 476211 Page 20