TW564632B - Scanning device - Google Patents

Abstract

A scanning device is disclosed, whose scanning platform on its base has a carrying glass to put the document to be scanned. The base has a chassis inside, which converts the image signal into electrical signal after scanning the document, and transmits it to the main board in the base through the flat cable, and then output the electrical signal. The chassis is driven and repeats the said steps to complete the operation of document scanning. The flat cable is designed to have the linear crest shape, so that the contact friction between the flat cable and the carrying glass is reduced to linear contact friction. Or, the flat cable is designed close to the side wall of the base edge, and tilts upward one side of the flat cable, which is close to the sidewall, so that the friction between the flat cable and carrying glass is located on both sides of the scanning platform, thus the wearing of the carrying glass at the position of canning platform is reduced, so as to promote the quality of image scanning.

Description

564632

[Field of the invention] The present invention relates to a scanning device for reducing the scanning of flat glass and second division | and> ^^ In particular, it relates to a device for scanning the glass surface of the finger to improve the quality of the scanned image [ BACKGROUND OF THE INVENTION The development and development of the "Multi-Media" of the human library library has become a trend. The so-called multimedia refers to data content that contains text, video, and more: different data types. In order to "can be displayed in the form of a riding horse, many multimedia devices that can capture images or sounds have been developed." For image processing, Scanning Apparatus is an image capture tool that users often use. One, oliophotograph, Figure 1A, which is a side cross-sectional view of a conventional platform scanner. As shown in Figure 1A, the platform scanner includes a base 102 and a flip cover 104. The base 10 has a scanning platform 106 or window i (window area). A scanning glass 106 is provided at the scanning platform 106 for placing the document 111 to be scanned. When scanning, the The scanned document ln is placed on the scanning platform 106. After the flip cover 104 is closed, the light machine 11 in the base 102 is driven to sense the image of the scanned file ill. The light machine 110 has a light sensing module 112 , Use ~ to convert the received image signal into an electrical signal, and then transmit the electrical signal to the motherboard (M〇the; r B〇ard) 11 6 through the Flat Cable ll4. Output of the image data sensed by the measurement module 丨 丨 2. Among them, the types of the light detection module 112 The class can be a Charge Coupled Device (CCD) module or a contact image sensor (c〇ntact

564632 V. Description of the invention (2)

Image Sensor, CIS) can achieve the above functions. After the signal in the light sensing module 112 is read out, the light machine 110 can be driven to move slightly toward the area that has not been scanned by the stepping motor (not shown), and the product is again sensed by the light sensing module 112. Scan the image of the file 丨 丨 丨 and send it via the flat cable 11 4 to output the image data. Repeat the above steps to scan the scan file 111 step by step. The above description can be applied to both reflective scanning documents and transparent scanning documents. The difference between the two is only the placement of the light source (not shown). As for the above-mentioned optical machine 11, the motion of the sensing file and the optical machine 1 The connection relationship between 丨 〇 and the flat cable 丨 丨 4 is the same. Therefore, the imaging principle is the same as that described above. First, please refer to Figures 1A and 1B at the same time, which shows the structural diagram of the coupling between the internal optical machine and the motherboard of the traditional platform scanner. As shown in Figures 1A and 1B, the flat cable 114 is located below the carrier glass 108, which is usually a flexible cable, and one end A of the flat cable is connected to the optical machine 110, and the other end β is through the light. The machine 110 is connected to the main board 116 below. Therefore, when the gap is flat = line 114, a raised portion 116 having a height h is generated, and the scanner is thinner and thinner from the state / present 1r. In the device, the raised portion of the flat cable 114 is often in surface contact with the carrier glass 108 at the scanning platform 〇06, as shown in FIG. 1c. Next, when the stepper motor drives the optical machine 11 to preview or scan the file to be scanned ln, the raised portion 118 of the flat cable 114 and the bearing broken glass 108 will rub against each other ' After long-term use, friction marks will be generated on the carrier glass 108. Friction marks on the bearing glass 108 will affect the penetration of light, so the scanned image of the document will also have corresponding trace teeth, large 564632

Greatly reduce the quality of scanned images of documents. [Objective and Summary of the Invention] Utilizing: t 2 2 ^ invention of 0 is to provide a scanning device, == design, change the flat cable to the surface of the carrier glass to line contact to reduce the friction surface of the carrier glass Like scanning quality. According to the present invention, the same scanning platform according to the present invention scans a document and scans the document, and the base is provided with light to generate a signal signal. In addition, the flat signal is transmitted, the optical machine drives the document, and the output image line has A linear peak, part contacting the carrier glass. According to the purpose of the present invention, the space of the other head of the present invention and the wear scars caused by the flat glass are moved to the scanned image. According to the purpose of the present invention, a scanning platform is provided. , A platform is provided with a light-carrying machine to sense 'the juxtaposed line in the base is connected to the light manipulator and repeat the above-mentioned' to complete the scan when the light-machine moves'. The side traces prompt a video scanner to be provided with a light machine at the scanning platform, with signals, and glass, which is used to measure the circuit board of the document to be scanned. Among them, “a flat cable is only a scanning device.” A flat cable can effectively avoid image quality optimization devices. Its base carries glass to sense the circuit board to be scanned, and to output the electricity corresponding to the scan. , Used to insert the “flat line of linear peaks” to be scanned. Use the bottom and the load to break the above scan. 0 The upper cover is placed to place the pair of documents to be rolled out. Based on the electrical signals of the optical machine and the circuit board, the optical machine is driven to repeat the above steps step by step ^ = to transmit parts and output image data to complete the scanning operation. The scanning line has an inclined portion, and the flat cable only contacts the bearing glass portion located under the upper cover of the flat line. On the two sides of Tian Shikou and for the purpose of understanding this hair, the following are specifically illustrated as follows: The above-mentioned objects, features, and advantages can be more preferred embodiments, and with the accompanying drawings, it is obviously easy to make a detailed description [better implementation Example] Please refer to FIG. 2A for the first embodiment, which illustrates a side sectional view of a scanning device according to the first embodiment of the present invention. As shown, the scanning device 2000 has a base 210 and the base 210 includes a scanning platform 212, a host 214 / flat & cable 216, and a motherboard 218. The scanning platform 212 is provided with a bearing glass 21 \; to place a document 215 to be scanned. When scanning a document, the optical machine 214 senses the light corresponding to the document 215 to be scanned, and converts the received image signal into an electrical signal, and then transmits it to the motherboard 218 via the flat cable 216. 214 generated image data output. Next, the optical machine 2 14 is driven by the stepping motor to repeat the above steps, so as to scan the file 215 to be scanned step by step and output the image data to complete the document scanning operation. For reference, please refer to Figure 2B. The drawing is an enlarged view of the structure of the peak of the flat line in Figure 2A, which is an enlarged view of the eating portion indicated by the dotted line in Figure 2A. The flat cable 216 has a first end c connected to the optical machine 214

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And the second end D is bypassed below the optical machine 214 and connected to the main board 2 18 ′, and the flat cable 216 is designed to have a shape of a crest line peak 22 °, as τ ′ in FIG. 2B When the line 216 moves with the optical machine 214 for document preview or scanning, even if the flat ribbon cable 2 丨 6 contacts the upper bearing glass 213, only the peak of the broken line 22 is rubbed by the line contact to the bearing glass 2 1 3. Therefore, in the above-mentioned conventional technology, the surface contact abrasion marks occurring on the carrier glass 08 can be reduced to the friction marks of the line contact, thereby improving the quality of image scanning. In addition, please refer to FIG. 2C, in which FIG. 2C shows an enlarged view of the structure of the flat flat line forming the curved surface in FIG. 2A. Based on the same spirit of the invention, the aforementioned flat cable can also be curved inwardly into an arc-shaped curved surface, such as the flat cable 226 not shown in FIG. 2C. Similarly, when the flat cable 226 rubs against the carrier glass 2 1 3, only the ridge line 2 30 on the curved surface of the flat cable 2 2 6 makes friction with the carrier glass 213 in line contact, so the image scanning can be improved. quality. Regardless of the above-mentioned flat cable 226 with a fold line peak or flat cable 226 with an arc-shaped curved surface, a layer of slipping aid can be added to the surface in contact with the bearing glass 213. The material is, for example, Teflon (Tefione), the friction coefficient between the slip pad and the carrier glass 2 1 3 is smaller than the friction coefficient of the flat ribbon wires 2 丨 6, 2 2 6 and the carrier glass 213, so that the above-mentioned line friction degree is further reduced. Second Embodiment Please refer to FIG. 3A, which illustrates a scan of a second embodiment of the present invention.

564632 V. Description of the invention (6) Side sectional view of the device. The scanning device 3 has a base 3, and the bottom 310 includes a dead cover 311, a light machine 314, a flat cable 316, and a main board cover 3U having a scanning platform 312, and a scanning glass 312 is provided at the scanning platform 312 3, used to place the file to be scanned 3 丨 5. When scanning a document, the optical machine 3 1 4 senses the light corresponding to the document 3 丨 5 to be scanned, and converts the received image signal into an electrical signal, and then transmits it to the motherboard 3 ^ 18 via the flat cable 316. The main board 318 outputs the image data generated by the optical machine 314. Then, the optical machine 3 14 is driven by the stepping motor to repeat the above steps to scan the document 315 to be scanned step by step and output image data to complete the document scanning operation. Please also refer to Figures 3A, 3B, and 3C, where Figure 3B shows a top view of the scanning device of Figure 而, and Figure 3 (: shows a sectional view along the third mid-section line 3C-3C. Flat The cable 316 has a first end E connected to the optical machine 314, and a second end F is bypassed below the optical machine 314 and connected to the motherboard 3 1 8. This example is characterized by the use of the inside of the base 3 1 0 Effective space, although adjusting the position of the motherboard 3 1 8, the flat cable 3 丨 6 can be moved close to the side wall 317 of the base 310 and the flat cable 316 is designed to tilt inward, as shown in Figure 3C In order to achieve the purpose of tilting the flat cable 316, the flat cable 316 can be connected to the first end E of the optical machine 314 and the second end F of the motherboard 3 18 to be the same as the flat cable 316. The direction is inclined, as shown in Fig. 3d. With the clever design mentioned above, the flat cable 316 can be brought into contact with the part carrying the glass 313, and the conventional surface contact can be changed to only the side close to the side wall 317. The line contact caused by the edge line 319 of the flat cable 316 is shown in FIG. 3C. And because the flat cable 316 is close to Side wall 564632 V. Description of the invention (7) ----- 3 17 + placement 'so that the above-mentioned flat cable 316 and the line of the bearing glass 31 3 are in contact with the top cover 311 on both sides of the scanning platform 312 (such as the first G f Η area shown in Figure 3B or G area shown in Figure 3C). Therefore, when the flat cable 316 moves with the optical machine 314 for document preview or scanning, even the flat cable 316 will contact The upper bearing glass 313, however, will not cause traces of the scanned image due to the friction marks falling on the g or Η region of the above cover 311. In this way, the quality of the scanned image can be effectively improved. [Effects of the Invention] This The surface contact friction of the clever crease or arc design of the cable arranged in the above embodiment of the invention is reduced to the space allocation of the line contact in the base, and the conventional flat cable is brought into contact with the lines on both sides of the bearing glass. Therefore, even if it affects the scanning of documents in the scanning platform and optimizes the image quality, as described above, although the present invention is not intended to limit the present invention, within the spirit and scope of the present invention, the protection scope of the present invention When looking behind Attached to the scanning device disclosed by the standard, the conventional flat cable is rubbed against the bearing glass by being flat. In addition, the flat cable's inclined design can be used to change the surface contact of the glass into the flat scanning surface. Wear marks on the bearing glass, and the quality of the image is not described, and it can also have a simple design function. It has been disclosed above in a preferred embodiment. Anyone skilled in this art can make various changes and retouches without departing. Therefore, the scope of the patent application is defined as

564632

Side view of the scanner. The optical machine and the motherboard are coupled in the scanner. [Simplified description of the diagram] Figure 1 A shows the traditional platform. Figure 1 B shows the schematic connection of the traditional platform. Figure 1C is a cross-sectional view taken along line 1C-1C in Figure 1A. Fig. 2A shows the first-杳 · sectional view according to the present invention. The structure of the flat line on the side of the scanning device of the example is shown in FIG. 2B. FIG. 2A shows an enlarged view of the peak portion with a broken line in FIG. 2A. Knot of the flat flat cable on the curved surface Fig. 2C shows an enlarged view of the arc-shaped structure in Fig. 2A. Fig. 3A shows a scanning view of a scanning device according to a second embodiment of the present invention. FIG. 3B is a top view of the scanning device of FIG. 3A. Fig. 3C shows a cross-sectional view taken along the section line 3C-3C in Fig. 3B. Figure 3D is a schematic diagram of the flat cable connected to the optical machine and the motherboard in Figure 3B. [Illustration of drawing number] 102 '210 ^ 310 ·· Base 104: Flip cover 1 0 6, 2 1 2, 3 1 2 ·· Scanning platform 108, 213, 313: Carrying glass 110, 214, 314: Optical machine

TW0790F (Lijie) .ptd P.11 564632 Illustration of simple illustration 111, 2 1 5, 3 1 5 · • Document to be scanned I 1 2: Light sensor module II 4, 2 1 6, 2 2 6, 3 1 6: Flat cable 11 6, 2 1 8, 3 1 8 · Main board 1 1 8: Bending portion 2 0 0, 3 0 0: Scanner 2 2 0: Polyline peak portion 2 3 0: Edge line 317 : Side wall 3 1 9: Side line

TW0790F (Lijie) .ptd Page 12

Claims (1)

564632 6. Application scope 1. A scanning device having a base, the base having a scanning platform. The scanning platform is provided with a bearing glass for placing a document to be scanned. The scanning device includes: a light machine 'Located in the base to sense the optical signal corresponding to the document to be scanned to generate an electrical signal; a circuit board' located in the base to receive the electrical signal; and a flat cable connected to Between the optical machine and the circuit board, used to transmit the electrical signal 'the flat cable has a linear peak; ； where' when the optical machine moves, only the linear peak of the flat cable will The carrier glass is in contact. Where the light Where the light Where the waiting Where the waiting Where the electricity Where the line Where the flat 2 The scanning device according to item 1 of the scope of patent application The machine system has a contact image sensor (CI s). 3. The scanning device as described in item 1 of the patent application. The machine has a charge coupled device (CCD). 4. The scanning device described in item 丨 of the scope of patent application is a reflective file. 5 · Scanning device as described in item 1 of the scope of patent application The scanned document is a transparent document. 6. The scanning device according to item 1 of the scope of patent application. The circuit board is a motherboard. 1 · The scanning device as described in item 1 of the scope of patent application. The peak shape is a polyline peak. 8. The scanning device according to item γ of the scope of patent application is covered with a sliding pad on the flat line. ΙΗ Page 13 564632 VI. Scope of patent application The sliding device is the scanning device as described in item 8 of the “Shentie” and “Fu \ Li” scope, where the a is the same as Κϊί material. ^ The scanning device described in item 1 of the flat cable alignment range, wherein the 11 is a curved surface as described in the above. The scanning device according to item 1 of the Qi 1 & 2 patent scope, wherein the linear peak. P is a ridge line of the arc-shaped curved surface. 12 As described in Φ 士 主 # ό T May, the scanning device described in the 11th scope of the patent, wherein the flat line is covered with a slip pad. 13. The scanning device according to item 2 of the scope of patent application, wherein the sliding aid pad is a Teflon material. 14. An optical signal scanning device with an upper cover, a carrying glass, and a light machine. The scanning device has a base. The base cover has a scanning platform. The scanning platform is provided with a document to be scanned. The device includes: located in the base to sense the pair of documents to be scanned to generate an electrical signal; a circuit board 'located in the base to receive the electrical signal; and a flat cable connected to the optical machine and The circuit board is used to transmit the electrical signal. The flat cable has a first edge and a second edge, and the first edge is higher than the second edge. When the optical machine moves, The flat cable can only contact the load-bearing glass portion located on both sides of the scanning platform and under the upper cover with the first edge. 15. The scanning device according to item 14 of the scope of patent application, wherein the optical machine has a contact image sensor (C IS). TW0790F (Lijie) .Ptd Page 14 564632 6. Patent application scope ^ 1 6 · The scanning device as described in item 14 of the patent application scope, wherein the optical machine has a charge coupled device (CCD). 17. The scanning device as described in item 1 of the scope of patent application, wherein the document to be scanned is a reflective document. 18. The scanning device described in item 14 of the scope of patent application, wherein the file to be scanned is a transparent file. 19 The scanning device as described in item 4 of the patent application scope, wherein the circuit board is a motherboard. TW0790F (Lijie) .ptd Page 15