TW475324B - Device for reducing the exposure time in image processing system - Google Patents

Abstract

The present invention is related to a device and a method to reduce the exposure time for image capturing in an image processing system. The device according to the present invention comprises a reset circuit for clearing the signal in the shift register to zero by the image capturing device after this scanning period and just about to scan the next column of image; making the image capturing device to directly transmit the obtained image signal in the next scanning period to the shift register, so that the image processing system used for high resolution scanning originally is taken with shorter scanning period during low resolution scanning so as to reduce the shortest exposure time for the image capturing device in the image processing system.

Description

475324 A7 V. Description of the invention (5_1 Field of invention) The present invention relates to a device for reducing the minimum value of exposure time required to shorten the exposure time required by the image capture device of a scene / ^ ns ^^^ / image processing system, particularly It is a device used to shorten the minimum exposure time of the image finger of the image processing system when the object is not scanned. A 1 / Τ # t 5 · 2 BACKGROUND OF THE INVENTION -------- ------ Μ -------- Order · C Please read the notes on the back before filling out this page} For a high-resolution image extraction device ^ ^ I use low-resolution to When scanning the body, the central image is used to describe the traditional image processing system, which is used to reflect and focus the image of the object by the optical system, convert it into an electrical signal through a photoelectric converter, and then Electronic circuits are used to correct, adjust, store, display or further process this electrical signal. Such imaging systems are widely used, such as image scanners, cameras and fax machines, which are common in modern worlds. These Although the devices are different from each other, but Image signal capture and analog digital conversion are used in many imaging systems. In other words, for image processing systems, it is necessary to convert the image of an object into an electrical signal. Taking traditional technology image scanners as an example, The block diagram is shown in Figure 1. An exposure timing signal generator 8, a shift control signal generator 9, ... < printed by the consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the light source 10, the glass surface 11 'reflector 12 , Lens combination 13, photo-sensing device 14, charge-coupled device shift register (CCD shift register) 15, pre-stage processing device 16 and post-stage processing device 17. · This paper size applies China National Standard (CNS) A4 specification (210 X 297 mm) 475324 Printed by A7 of the Intellectual Property Bureau Staff Consumer Cooperative of the Ministry of Economic Affairs 5. Description of the invention (the front-end processing device 16 is an electrically coupled DC gain voltage amplifier 16a and analogy to The digital converter 16b is composed of the turn-out signal 20 of the exposure timing signal generator 8, which is shown in FIG. 2 and is fed to the light. Sensing element 14. The above system operates as follows. The light source 彳 〇 emits light on a broken glass surface with graphics or text behind it, scans the glass surface 11, reflects it to the reflector 12, and then It is reflected on the lens assembly 13 through the lens assembly 13 and focused on the light sensor element 彳 4, and is converted into an electrical signal by the light sensor element 14. Wherein the leading edge in the pulse wave 2 1 (Figure 2) When fed into the light-sensitive element 14, the light-sensitive element 14 dumps out the charge accumulated in the previous time period into the charge-coupled device register 15, and the light-sensitive element 14 is at 2 1 (Figure 1) The trailing edge of the image begins to store the image signal obtained at the time interval between the trailing edge of the pulse wave 21 and the leading edge of the pulse wave 23, and at this time the electrical signal obtained in the charge coupled device register 15 can be used. Processing in subsequent circuits. This electrical signal is sent to the pre-processing device 16 in sequence. In order to describe in detail the operation of the light-sensing element 14 operating in accordance with the exposure timing signal generator 8 and the charge-coupled device register 15 operating in accordance with the shift control signal generator 9, the operation of the system is As described below. A line on the scanned object is illuminated by the light source 10, and the light sensing element 14 converts the light reflected by a line on the scanned object into a complex number corresponding to the output signal 2 0 'of the exposure timing signal generator 8. Group of charges. For each unit cell on the light sensor element 4, the pulse wave 19 and pulse wave 21 of the output signal 20 of the exposure timing signal generator 8 are applicable to the Chinese National Standard (CNS) A4 specification do X 297. ------- I -------- ^-III I --- ^ (Please read the precautions on the back before filling out this page) 475324 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 V. Description of the invention In the time interval between (,), exposed under the illumination of light reflected by a line on the scanned object. After the pulse wave 21 reaches the light sensing element 彳 4, the complex group of charges are simultaneously fed to Charge-coupled device register 15. Each of the group of charges generated by each unit cell of photo-sensing element 14 is fed into the corresponding potential energy well of charge-coupled device register 15. Then stored in the charge-coupled device Each group of charges in each energy well of the register 15 is transferred to the front-end processing device i 6 in a transmission mode in which the complex group charges correspond to the output signals of the shift control signal generating device 9 and one after the other To the former processing unit 彳 6. This plural group of electricity Before the next pulse wave 23 of the pulse wave 21 reaches the light sensing element 14, it is stored in each potential energy well of the charge coupled device register 15. In addition, each potential energy well in the charge coupled device register 15 Each stored group of charges is sequentially sent to the pre-processing device Q6. In other words, the charge group stored in the first energy well a1 of the charge-coupled device register 彳 5 corresponds to The first pulse wave 3 1 A1 of the signal 30 in FIG. 3 is crushed and sent to the pre-processing device '6. Then the charge group stored in the second energy well a2 of the charge-coupled device register 15 is stored. Corresponding to the second Z wave 3 1 A2 of the signal 30 in FIG. 3, it is sent to the front-end processing device 16. Nie Yu., ^ ^ Τ is taken and stored in the charge-coupled device register 1 The charge group in the n-th potential energy well an of 5 is corresponding to the n-th pulse 3 彳 An of signal 30 in Fig. 3, and is sent to the pre-processing device 16. Because of the above operation, Therefore, the system is designed so that after the n-th pulse 31 A of the signal 30 reaches the charge transfer person # the register 15 is stored. The pulse wave of 20 can reach the light of 23. The paper size of the sheet is applicable to China National Standard (CNS) A4 (210 X 297 mm) I ^ Ί II -------- ^ ----— II — · (Please read the precautions on the back before filling out this page) 475324 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (1 4. So if there is no change in its operation mode, the exposure of the light sensor 彳 4 Time must be greater than a fixed value, which is the time zone & between pulse wave 21 and pulse wave 23. And this fixed value is the product of the number of pixels and the pixel rate. The above-mentioned pixel rate is the number of charge groups rotated by the potential energy well in the charge-coupled device register 彳 5 in a unit time, and the above-mentioned number of pixels is the charge-coupled device The number of charge groups stored in the potential energy well in Cry 15 is temporarily stored. In a high-resolution mode, more cells of the light-sensitive element 14 are used to be exposed under the light of the light source 10. However, in a low-resolution mode, fewer cells of the light-sensitive element 14 are used to be exposed to light from the light source. In addition, the lens holder i 8 is moved to an appropriate position so that its projection range is suitable for projection onto the photosensitive element 14. Among them, in the low-resolution mode, the number of light-sensing elements 14 used is small, and the positions of the lens group and the lens holder used in this low-resolution mode are not shown in FIG. 1. However, the exposure time zone required in the high-resolution mode is the same as the exposure time zone required in the low-resolution mode, so even if the user uses this system in the low-resolution mode, its required Of impressions will still keep users waiting. This is a source of time waste for the user. After the electrical signal is fed to the front-end processing device 16, the current-sense voltage gain amplifier 16a adjusts the DC gain of the electrical signal and sends it to the analog-to-digital converter 16b, and in the back-end processing device 16 In contrast, the Gamma characteristic curve is used for contrast adjustment, and then it can be generated. ≫ r --- 1 ^ -------- ^ --------- ^ (Please read the precautions on the back first Fill out this page again) 475324 A7 V. Description of the invention (Signals that are stored or further processed. Ordered in the image capture device of the traditional image processing system, it can be used by users for different applications in a high-level analysis Degree mode or low ^ = degree mode, and in the low-resolution mode, the number of unit cells of the light-sensing element 14 exposed under the light of the light source 彳 0 is higher, but the number of cells is higher, but the light-sensing element 14 The charge group stored in each unit cell is transferred to the front-end processing device 16 through the charge transfer voucher register 15 whether in the low-resolution mode or the high-resolution mode. So ^ In high resolution mode or low resolution mode, the required exposure The shortest value of time (section) is fixed, and this exposure time is equal to the product of the pixel rate and the number of pixels of the light sensor element 14. And this is the user's use of the system's low resolution mode, resulting in Reason for wasting time. In the image capturing device of the traditional image processing system, when the frequency of the output signal of the shift control signal generating device is increased to reduce the required exposure time (section), it is easy to cause charge coupling. The residual charge in the potential energy well of the device register 15 affects the quality of the finishing image. 5-3 Purpose of the Invention and Overview Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In view of the above background of the invention, Regardless of the high-resolution or low-resolution image capture device, the scanning time used is the same, so that unnecessary scanning time is wasted. In order to reduce the scanning time, the present invention proposes a device to pass the optical The image is converted into an electrical signal. The above-mentioned device includes the following devices. A light-sensing device is used to Light exposure, in order to apply this national standard (CNS) A4 specification to this optical photocopy paper size xQ x 297 A7 B7 V. Description of the invention (like 'corresponds to the exposure timing signal and is converted into a complex group of charges. The register is used to receive the above complex group charges in parallel, and the group charges are output in this order to form the = electric: signal. The control device is used in the first and second resolution modes of the system. In each case, the first reset signal is generated. The first number of single cells in the light sensing device are 'exposed to the light of this optical image in the first resolution mode: in the light sensing device In the second resolution mode, the second number of unit cells is exposed to the light of the optical image. The number of the first number of unit cells in the light sensing device is greater than the number of the second number of unit cells. The period of the first-set signal is proportional to the first number of unit cells in the light-sensing device, and the value is: The period of the second reset signal is proportional to the value of the first number of unit cells in the light-sensing device. The upper cylinder is transferred to the shift register, and then the shift register is output. The reset device 'is used to ground the charge in the shift register corresponding to the _th reset signal and the second reset signal. This reset device is puppet = a shift register that generates a potential energy well' And the reset device generates potential energy at the first cycle of the first reset signal and the first reset signal. The taxi j does not generate potential energy, and this bit energy well moves the charge in the shift register out of the shift register. Save t charge. The above light-sensing element corresponds to the exposure timing signal and the image is converted into a complex group of charges. And this exposure timing signal is: When the processing system is operated in the -resolution mode, it is not less than the second :: image period, and this exposure timing Signal cycle AI ^ Set the information month in the image processing system. Paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -M -------- ^ ------- -^ k (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 475324 Α7 Β7 V. Description of the invention () When used in the second resolution mode, it is not less than the second resolution Set signal period. The selection device is used to determine whether the device operates in the first resolution mode or the second resolution mode according to the user's selection. The user clicks the first position on the surface of the selection device to generate a first selection signal. , The user clicks the second position on the surface of the selection device to generate a second selection signal, and the device operates in the first resolution mode according to the existence of the first selection signal, or according to the existence of the second selection signal While operating in the second resolution mode. A positioning device is a first number of units for driving the above-mentioned lens group to a first image capturing position corresponding to a first selection signal to project an optical image in a light sensing device in a first resolution mode Cell. And the positioning device drives the lens group to position to the second image capturing position corresponding to the second selection signal, so as to project the optical image on the second number of unit cells in the light sensing device in the second resolution mode. The pre-processing device is used to adjust the DC voltage of the electrical signal from the shift register and convert the electrical signal from analog to digital form. The post-processing device is used to adjust the contrast of electrical signals in digital form. The above selection device may be a software interface (or a user interface). The positioning device may be a drive motor, and the reset device may be included in a Charge Coupled Device (CCD). Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5-4 Schematic Briefing The following descriptions, combined with the following drawings, will be able to apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) to the paper size of the present invention ) 475324 A7 B7 V. Description of the invention (πWind 虿 is more clearly understood, of which: Figure 1 shows the function of the traditional shadow silly picture theory system ° 'One has a high-resolution mode and a low-resolution mode ·

Figure 2 shows the waveforms of the exposure resolution m19 timing signals used in the traditional image processing ^ = 2L mode and low-resolution mode; Figure 3 shows the traditional image processing and thorough processing The waveform of t ^ a 1 device stored in the high-resolution device is stored in the charge-coupled temporary electrical signal. Figure 4 shows the waveform of the shift control signal according to the present invention. The best example of the 4 resolution mode · Qiaomen resolution fork type and whispered figure 5 shows a better price / processing according to the present invention Device, which is used in the high-resolution mode + exposure clip of the soldier \ ▲ Ding-waiting type; waveform diagram of the signal at the time of nine leaves; Figure 6 shows a better and careful treatment according to the present invention. An example of the shadow {makes the device 'is in its low-resolution mode " 1 exposure timing signal waveform; Figure 7 shows a preferred processing system according to the present invention from the shadow of the 1 example of the 4th example 糸The system's image capture device is in high-resolution mode, where, if m ^ τ is low-resolution: The waveform diagram of the life-time signal of the charge that is printed by the employee consumer cooperative of the Ministry of Intellectual Property Bureau of the People's Republic of China is used to drive the charge stored in the charge coupled register + bit control ~ τ; The y I processing system is an example of an image capture device that resets the waveform of 向 π r in the high-resolution mode and analyzes the waveforms;

X 'Applicable_Home Standard (CNS) A4 Specification⑵〇 (Please read the precautions on the back before filling this page) X 297 mm)

475324 A7 _B7___ 5. Explanation of the invention (Figure 9) shows the waveform diagram of the low-resolution reset signal of the image capture device of the image processing system according to a preferred embodiment of the present invention in the low-resolution mode; Fig. 10A shows a cross-sectional view of a reset gate in a preferred embodiment of an image capturing device of an image capturing system according to the present invention; Fig. 10B shows a photo sensor produced under normal circumstances. When the charge is conducted to the CCD shift register, the distribution map of each potential energy well; and Fig. 10C shows that when the charge in the c CD shift register is conducted to ground in the reset state, each Distribution map of potential energy wells. 5-5 Detailed Description of the Invention In order to eliminate unnecessary scanning time in the low-resolution scanning mode, according to the image capturing device of the image processing system in the preferred embodiment of the present invention, a device for reducing the minimum exposure time zone is proposed. In the present invention, only a few unit cells in the light sensing element are exposed 'and in a low-resolution mode, it is used to drive the shift of the charge group stored in the potential energy well of the charge-coupled element shift register. The bit control signal also contains fewer pulse waves, so the exposure of the image capture device of the image processing system ----- "-I * -------- ^ ------- -^ (Please read the notes on the back before filling in this page) The printed materials of the employees' cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs of the Temple will be printed by the department. The example of a good body of good shadows is converged in exchange for conversion, the electrical system is a 9 ** | Department of Economics and Management, like Jiao to do all kinds of information in the air. This is the right way to manage the electricity at the sub-step As soon as you enter, or display, signal display, gas storage and electricity storage > complete changeover, the corrector school-based paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 475324

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of Invention () In the same application, this image processing system can be used in devices such as image scanners, cameras, and fax machines that are common in the modern world. Although these devices are different from each other, image signal extraction and analog digital conversion are used in many imaging systems. In other words, it is necessary for the image processing system to convert the image of the object into an electrical signal. Take a shirt portrait as an example. § Brother Ming, the preferred embodiment of the present invention, the block diagram is shown in Figure 4. 'from an exposure timing signal generator 5 8, shift control signal generator 59, light source 60, glass Surface 61, mirror 62, lens combination 63, photo-sensing device 64, charge couple device shift register: CCD shift "egister" 65, reset gate 66, counter 67 The pre-stage processing device 69 and the post-stage processing device 70. The pre-stage processing device 69 is composed of an electrically coupled DC gain voltage amplifier 69a and an analog to digital amplifier 69b. The first exposure meter output by the exposure timing signal generator 58 At the time, the hole number 80h and the second exposure timing signal 80 |, as shown in Figures 5 and 6, are fed to the light sensor 64. In the image processing system, users are provided with high-resolution mode and low-resolution mode , The user can use the software interface 7 1 to select the high-resolution mode or the low-resolution mode as its operation mode, for example, when the user double-clicks on the L button of the software interface 7 1 with a mouse A selection signal is sent to the positioning device 7 3, and the driving device 73 moves the lens group 63 from the position Ph to P. When the lens group 63 is located at the position P 丨, a smaller number of light sensing elements 64 are designed The unit cell applies the Chinese National Standard (CNS) A4 specification (x 297 public love) to the paper standard. --I ----- · ^ ----— — — It --------- V . (Please read the notes on the back before filling this page) 4/5324

Λ Description of the Invention (The print source 60 of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has exposed the source 60. In the low-resolution mode, the number of cells of the light-sensing element 64 exposed to the light source 60 is relatively small. When scanning an object in the above low-resolution mode to obtain an image, the above-mentioned image capture device operates in the following manner. The light source 60 emits light on a glass surface 61 with graphics or text behind it. And scanned the glass surface 6 1, such as the work cw, so it hits the mirror 62, and then reflects on the lens combination 6 3 0 through reading. The human μ field lens combination 63 focuses on the light sensor 64. And a part of the light sensor element u is exposed by light, and this light comes from the light refracted by the lens group 63 at the position P 丨. Assume that in the high-resolution scanning mode, the light sensor 64 There are a first number of unit cells exposed to the light source 60, and two feed nine '. In the low-resolution mode, the light sensor 60 has a second number of pre-set cells exposed to the light source 60. See Figure 4 H ~ T in low-resolution mode 'The number of the second cell of the light-sensing element 64 exposed to the light source 60 is relatively high. In the resolution mode, the number of the first cell exposed to the light source 60 is small. This is a preferred aspect of the present invention. The embodiment provides an exposure timing signal generating device 58 ^ < 1 'to generate a first exposure timing signal 80h or a second exposure meter according to the use of the software interface 71 for the selection and release of low resolution and high resolution. Eyes τ signal 80 丨. After the light sensor 64 generates a complex group of charges, this complex aI_ charge corresponds to the first exposure timing signal 80h or the second exposure timing signal 8 01 output by the exposure timing signal generating device 58 And is transmitted to the corresponding bit energy well in the Ray ~ $ < ~ I coupling device register.65. Then, corresponding to the timing pulse 90 generated by the shift control signal generation device 59, In charge-coupled device temporary & register 6 5 / multiple digits 12 This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) -------- ----- --- ^ ---- I ---- ^ (Please read the notes on the back before filling this page) Economy Printed by the Intellectual Property Bureau employee consumer cooperative 475324 A7 ---__ B7 V. Description of the invention () The complex group charges in the energy well are sent to the front-end processing device 69 one by one. By this, the complex group charges form the object to be scanned The electrical signal of a line. In other words, a line on the scanned object (image or text) is converted into an electrical signal. After this electrical signal is fed to the pre-processing device 6 9, the DC gain voltage amplifier 6 9 a adjusts Its DC gain is then sent to an analog-to-digital converter 6 9 b. In the latter-stage processing device 70, the contrast adjustment is performed based on the g a m m a characteristic curve, and then a signal that can be stored or further processed is generated. It is worth noting that the image capturing device of the image processing system according to a preferred embodiment of the present invention can reduce the time required for scanning in the low-resolution scanning mode. The principle is as follows. As shown in Figure 4, when the user selects the high-resolution mode through the software interface 71, the high-resolution mode exposes the time zone (that is, the time between the first pulse wave 79 and the second pulse wave 81). ), The complex group of charges generated by the light sensing element 64 corresponds to 8 波 (Figure 5), and is driven to the charge-coupled device shift register and then stored in the charge-coupled device shift register 65. Each of the complex group charges is driven to the pre-processing device 69 corresponding to each pulse (pulse 91 A1, 91 A2 ... 91 An) in the timing pulse 9 0 (Figure 7). in. The timing pulse 90 is also fed into the counter 67, and because of the setting of the software interface 71, the value transmitted to the counter 67 makes the period of the high-resolution mode reset signal 95hs and the high-resolution mode exposure timing zone & Are the same. For example, assuming that the light sensing element 64 has 1 0600 unit cells, the number of pulse waves between the pulse waves 91A1 and 91 An is a coincidence. 6 (3q This paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 Mm) ------------ «^ -------- ^ --- I ----- ^ (Please read the notes on the back before filling out this page) 475324 A7 B7

The “two” analysis of the f M-type exposure timing section m 1. _ and the graph Γ is set to two = the product ”where the pixel rate is represented by the charge J ling set shift temporary storage IS 65, each pass before the processing device 69 The required group-to-group charge in the required day-to-day hard electric group must be noted. The% is located in the time interval between the first reset pulse and the pi and pi, which is approximately equal to the fifth wave. The high-resolution wedge between ^ 83 = No .; resolution mode ... the signal is stored in the electricity. The device is shifted; ^^ When the brake is set, all the health mode reset signals 95hS-# and He are passed through high The analytic reset asks 66 while the ground is: == and the next-line is turned on followed by _% " 3 by two = text "of the complex group of charges. In another aspect, as shown in Figure 4, the fire interface 71 selects a low-resolution (scanning) mode when the user uses the software to expose the time zone in the low-resolution mode (Figure 6). Therefore, the third pulse 98 generated by the time between the light sensing element 64 and the fourth pulse 99) should be the fourth pulse 99 (in Fig. 6), and the charge of the hard number group 'Phase register 65. Then the electric charges in the multiple potential energy wells staggered in the charge 丄 -element to the piece of charge ... are shifted accordingly. Each of the pulses in 65 (91Α1, 91Α2, α 1 clock wave 9 〇 (Figure 7) Eight sentences are sent to the front-end processing device 69 one by one. The timing off * The main pulse of a temple pulse 90 is also transmitted. 14 This paper size applies the Chinese National Standard (CNS) A4 regulations. (21〇X 297 mm < ---- ^ -------- ^ --------- ^ k (Please read the notes on the back before filling this page) Wisdom of the Ministry of Economy Printed by the Consumer Cooperative of the Property Bureau. 5. Description of the invention () = Hour = Because of the setting of the L button on the software interface 71, the value of ISA = 67 also makes the low-resolution mode reset Xuanguan U 5 S (Figure 9) Zhou Diyi's high-power, specializing in half of the exposure time section of the A resolution mode. For example, suppose that the light sensor 64 has 10,600 cells and scans in the low resolution mode. Image, so the number of pulse waves between pulse wave "M and pulse wave-is 5 3 000, so the low-resolution mode exposure timing section is not less than 53. The product of the pixel rate and the pixel rate, where the pixel rate represents the time required by the charge-coupled device shift register 65 to transfer the m of the complex group charge I to the pre-processing device 69. It is also worth noting that The time period 'between a reset pulse 105s2 and a fourth reset pulse is approximately equal to the low-resolution mode exposure time zone between the third pulse 4 and the fourth pulse 99 in FIG. 6 The size of the segment. Because the fourth reset pulse 105s3 of the low-resolution reset signal 105s3 output from the counter 67 reaches the reset gate 66, all the charges stored in the charge-coupled element shift register 65 ' The reset gate 66 opened by the fourth reset pulse 105s3 of the low-resolution mode reset signal 105s is cleared (eg, grounded). Because in a preferred embodiment of the present invention, the The reset gate can be achieved in many ways, such as a charge light closing element. The structure of the reset gate 66 is briefly described in FIG. 10A, where the electrodes of the reset gate 66 of FIG. 10A are electrically reset. Coupled to the register 6 7 (Figure 4), when the light-sensitive element 64 (Figure 4) generates a charge, and it has not yet Before being transferred to the CCD register 65, the sectional view of the potential energy well is shown as line PW1, and the charges / both are still in the light. 15 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm --- ^ -------- ^ --------- 0 (Please read the notes on the back before filling out this page) 475324 A7 Description of the invention () In the sensor 64. Then refer to Figure 10B, Applying a “voltage” to the transmission closure and cc makes the resulting potential energy cross-section ... shown, and the lightning energy η located in the light sensing element 64 flows to the potential energy well located below the CCD phase # electrode. . T m When the Recco, Yu, Zeng, and 90 tails located in the CCD shift register 65 are turned on to ’’, the voltage is applied to the C C D phase and reset gate, and stored in the C C D phase

The charge in the potential energy well under the potential electrode is conducted to the CCD and the electrode. Without the lightning in the potential energy well under the C C D phase electrode, how can the electricity of T be cleared (for example, it is connected to the ground). Referring to FIG. 5 and FIG. 6, it is obvious that the shortest exposure time required in the J 疋 low-resolution mode is one and a half of the exposure time of the high-resolution mode, and so on. # 1 The image capture device of the image processing system in the example of the soil penetration. When it is operated in low resolution and mode, the exposure time required can be reduced by half compared to the traditional one. The reset gate and the reset signal used to control the reset gate are both used to prepare the M to reduce the short exposure and time required in the low-resolution mode, so the invention can reduce the scanning time. Time required. In short, because there are many types of image capture devices, the priests m ώ ~ ,,,. The circuit can be used to achieve the functions disclosed in the present invention. For example, if you have a proper design, you can use a counter or you can use two sets of lenses in the image capture device. group. These two sets of lens groups are used in the estimation cylinder + + ~ low-resolution mode and high-resolution mode. In addition, the positioning device may be a bottle & kappa ~ coffee, and the software interface may exist in a computer, or it may be an image processing system in the preferred embodiment of the present invention. in. 16 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the phonetic on the back? Matters before filling out this page) Installation --- I ----- Order ・ ---- I --- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Green Economy 475324

(Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 specifications < 210 χ 297 mm) ^ -------- ^ ------- -^, 475324 V. Description of the invention () 5-6 element symbol 猇 Comparative description A7 B7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 8, 58 Exposure timing signals are 9, 59 Shift control signal generator 10, 60 Light source 1 1 ^ 61 Glass surface 12, 62 Reflector 13, 63 Lens combination 14, 64 Photo sensor 15, 65 Charge-coupled device register 16, 69 Pre-stage processing device 17, 70 Post-stage processing device 16a, 6 9 a DC gain voltage amplifier 16b, 69b Analog to digital converter 20 Output signal 19, 21 23 Pulse a1 No. 30 No. 30 Signal 31A1, 79 9 1 A1 No. 1 Pulse 31A2, 81% 91A2 No. 2 Pulse 18 Lens mount a2 No. 2 Energy well 16a DC voltage gain amplifier 16b Analog to digital conversion 66 Reset gate 67 counter 58 exposure timing signal generator 80h first exposure timing signal 80I second 丨 exposure timing signal: 71 software interface 73 positioning device 90 timing pulse 66 reset gate 83, 98 third pulse 99 99 fourth pulse 95h S Resolution mode reset signal 96hs1 first reset Pulse 96hs2 Second reset pulse 17-1 ----------- II -------- ^ ---------- ^ (Please read the Note: Please fill in this page again) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

9〇β.0.2 40- £ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. Application for patents 1. A device for reducing the exposure time of an image processing device, the image processing device includes at least a mobile device coupled to a light sensing device A bit register, the light sensing device is used to convert the optical image transmitted by the lens group into a complex group of charges to form an electrical signal. The device at least includes: a control device, which is used in the image processing system In the first resolution pull mode and the second resolution mode, the first reset signal and the first reset Λ signal are generated respectively. The first number of unit cells in the light sensing device are in the first resolution mode. Being exposed to the optical image, the second number of unit cells in the light sensing device is exposed to the optical image in the second resolution mode, the first number of unit cells in the light sensing device is larger than the The number of the second number of unit cells in the light sensing device, the period of the first reset signal is proportional to the number of the first number of unit cells in the light sensing device, and the period of the second reset signal Compared to the number of the second number of unit cells in the light sensing device, the complex group charge is transferred to the shift register, and then output by the shift register; and the reset device is used. The charge in the shift register is transferred to ground corresponding to the first reset signal and the second reset signal, the reset device is coupled to a shift register that generates a potential energy, and A potential energy well is generated at the end of the mother cycle placed in the first reset signal and the second reset m # ", and the potential energy well is moved out of the residual charge in the shift register ". The light sensing element converts the optical image into the complex group charge corresponding to the exposure timing signal, and the period of the exposure timing signal is not less than the period of the first reset signal when the image processing system is operating in the -resolution mode. The 18 paper sizes are in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm)! I Μ ---------------- ^. (Please read the note on the back first (Please fill in this page again) 2 6. Scope of patent application The period of the exposure timing signal is not less than the period of the second reset signal when the image processing system is operated in the second resolution mode. (Please read the precautions on the back before filling this page) 2. For the device that reduces the exposure time of the image processing device in the first patent application, the above image processing system is an image scanner. 3. For example, the device for reducing the exposure time of the image processing device in the first patent application range, wherein the above reset device is included in a Charge Coupled Device (CCD). 4. A device for reducing the exposure time of an image processing device, which is used to convert an optical image from a lens group into an electrical signal. The device includes at least: a light sensing device, which is used to expose the light of the optical image. The optical image is converted into a complex group charge corresponding to the exposure timing signal; a shift register is used to receive the complex group charge in parallel, and corresponds to a shift control signal output by a shift control signal source The complex group charges are sequentially output, and the sequentially outputting the complex group charges forms the electrical signal. The consumer cooperative cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed a control device for the first resolution mode and the second of the system. In the resolution mode, a first reset signal and a second set signal are generated respectively. The first number of unit cells in the light sensing device are exposed to the optical image in the first resolution mode. The second number of unit cells in the device were exposed to the medical image in the second resolution mode. (CNS) A4 size (210 X 297 mm) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs: The number of single cells in the light-sensing device. The reset signal = 2 times. The number of a number of unit cells, the period of the second reset signal is proportional to the number of the second number of unit cells in the first sense setting, and the plurality of groups of electrical signals A ^ ^ ^ ^ ^ How is transferred to the shift register and then output by the shift register; and a reset device, which is used to shift the shift corresponding to the first reset signal and the first: Jin = 1 The charge in the bit register is conducted to the ground, the port to the shift register that generates the bit energy well, and the reset device is installed at the end of each cycle of a reset signal and a second reset signal. Production and potential energy well 'This potential energy well moves out of the residual charge inside the shift register. The sensing element converts the optical image into the complex charge corresponding to the exposure timing signal, and the period of the exposure timing signal is not less than the period of the -reset signal when the image processing system is operating in the -resolution mode. The period of the exposure timing signal is not less than the period of the second reset signal when the image processing system is operating in the second resolution mode. 5_ As described in item 4 of the Jsf patent range, reducing the exposure time of the image processing device includes: Selecting "^^^" is used to determine whether the date is set to operate in the resolution mode or the second according to the user's choice. In resolution mode, the user clicks a first position on the surface of the selection device to generate a first selection signal. The user clicks a second position on the surface of the selection device to generate a second selection signal. The device is based on the first The existence of the selection signal is: operating on the 20 paper sizes applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1 ·. Loading -------- Order -------- -Line (Please read the precautions on the back before filling this page) 475324 90.10 24 A8 7 B8; C8 I Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. The first resolution mode of patent application scope, the device is based on the Two selection signals exist and operate in the second resolution mode; and a positioning device for driving the lens group to position to a first image capture position corresponding to the first selection signal, so as to be at the first resolution Optical mode Projected on the first number of unit cells in the light sensing device, the positioning device drives the lens group to position to a second image capture position corresponding to the second selection signal, so as to be in the second resolution mode Projecting the optical image on the second number of unit cells in the light sensing device; the front-end processing device is used to adjust the DC voltage of the electrical signal from the shift register, and simultaneously convert the Electrical signals are from analog form to digital form; and post-processing devices are used to compare the electrical signals in digital form. 6. For the device that reduces the exposure time of the image processing device, as described in item 5 of the patent application, the above-mentioned selection device is a software interface. 7. The device for reducing the exposure time of the image processing device, such as the item 5 of the patent application scope, wherein the positioning device is a drive motor. ··, 8. The device for reducing the exposure time of the image processing device, as described in item 4 of the scope of patent application, wherein the above reset device is included in a Charge Coupled Device (CCD) 〇1.: ----- ------- Installation -------- Order --------- line (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) Α8 Β8 C8 D8 90 ·! 0 · 2 4 Bee Year λ.;: 'V, patent application scope 9 _ a device to reduce the exposure time of the image processing device, is used to pass through the lens The grouped optical images are converted into electrical signals. The device includes at least: a light sensing device for exposing the light of the optical image to convert the optical image into a complex group of charges corresponding to the exposure timing signal; The shift register is used to receive the complex group charges in parallel, and sequentially output the complex group charges in response to the shift control signal output from the shift control signal source. The sequentially rotated complex group charges are formed. The electrical signal; a control device for In a resolution mode and a second resolution mode, a first reset signal and a second reset signal are generated, respectively. The first number of cells in the light sensing device are exposed to the first resolution mode. In the optical image, a second number of unit cells in the light sensing device are exposed to the optical image in the second resolution mode, and the first number of unit cells in the light sensing device are larger than the light sensing device. The number of the second number of unit cells, the period of the first reset signal is proportional to the number of the first number of unit cells in the light sensing device, and the period of the second reset signal is proportional to the light sensor. The number of the second number of unit cells in the device, the complex group charge is transferred to the shift register, and then output by the shift register, and the reset device is used corresponding to the first A reset signal and the second reset signal 'to conduct the charge in the shift register to ground, the reset device is faced to the shift register that generates a potential energy well, and the reset device 22 ^ Paper size applies to China Standard (CNS) A4 (210 X 297 g) I ^ -------------------- Order --- --- IIII (Please read the note on the back first (Please write this page again) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 24 3 5 7 A8 B8 C8 D8 η Year 6, the scope of the patent application is placed in each cycle of the first reset signal and the second reset signal A potential energy well is generated at the end, and the potential energy well is moved out of the residual charge inside the shift register. The light sensing element converts the optical image into the complex group charge corresponding to the exposure timing signal. The period of the exposure timing signal is not less than the period of the first reset signal when the image processing system is operating in the first resolution mode. , The period of the exposure timing signal is not less than the period of the second reset signal when the image processing system is operating in the second resolution mode; the selection device is used to determine that the device operates at the In the first resolution mode or the second resolution mode, the user clicks a first position on the surface of the selection device to generate a first selection signal, and the user clicks a second position on the surface of the selection device to generate a first selection signal. Two selection signals, the device operates in the first resolution mode according to the existence of the first selection signal, the device operates in the second resolution mode according to the existence of the second selection signal; and a positioning device for Driving the lens group to a first image capturing position corresponding to the first selection signal, so that in the first resolution mode, The learning image is projected on the first number of unit cells in the light sensing device, and the positioning device drives the lens group to position to a second image capturing position corresponding to the second selection signal, so as to obtain the second resolution In the mode, the optical image is projected on the second number of unit cells in the light sensing device. ,,, -1 --------------------- Order -------- I (Please read the notes on the back before filling this page) Economy Printed by the Ministry of Intellectual Property Bureau's Consumer Cooperative 23 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 475324 D8 6. The front-end processing device for the scope of patent application is used to adjust the DC voltage of the electrical signal from the shift register and convert the electrical signal from analog to digital form; and the post-processing device is used Comparison of this electrical signal in digital form. 1 1 The device for reducing the exposure time of an image processing device, such as item 9 of the scope of patent application, wherein the above-mentioned selection device is a software interface. 1 2 The device for reducing the exposure time of an image processing device as described in item 9 of the scope of patent application, wherein the above positioning device is a drive motor. I ... 1 3 The device for reducing the exposure time of the image processing device as described in the item 9 of the patent application scope, wherein the above reset device is included in a charge coupled device (Charge Coupled Device: CCD). I -------------------- Order · ------- 1 (Please read the notes on the back before filling out this page) Staff of the Intellectual Property Bureau of the Ministry of Economic Affairs The paper size printed by the consumer cooperative is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm)