49 results about "Duplex scan" patented technology

The invention discloses a method and device for scanning multiple identity cards. The method comprises the following steps of: scanning the both surfaces of the multiple identity cards in a scanning area; performing edge extraction on scan images; performing the procedures of positioning, cutting and correcting by rotation on the scan images subjected to the edge extraction, thus obtaining a scan image of each identity card; performing characteristic extraction on each scan image of the identity card to obtain a characteristic pattern of the scan image of each identity card; comparing the characteristic pattern of the scan image of each identity card with a characteristic database storing standard characteristic patterns of the identity cards to perform orientation judgment and orientation correction on the scan image of each identity card, thus obtaining a corrected scan image of each identity card; and splicing a front image and a back image of each corrected scan image of each identity card, and then outputting a spliced image. The method and the device ensure that customers can conveniently perform double-face scanning operation on the multiple identity cards, are high in scanning speed and efficiency, provide good user experience, and can be widely applied to the field of scanning.

An operating method for a double-sided scanner is provided. A light source of one particular color inside a first group of light sources and a light source of a different color (or the same color) inside a second group of light source are lit to scan the front and back surface of a scan document. Optical signals from the front and back surface of the scan document are received and converted into analogue electrical signals. Thereafter, the analogue electrical signals are converted into digital electrical signal. Finally, the digital electrical signals are output to a host computer. This invention utilizes two groups of light sources (for example, light-emitting diodes) to serve as light sources for the double-sided scanner. Because light-emitting diodes require no warm-up period and is quick to switch, double-sided scanning is simplified.

A duplexing auto-document feeder for an all-in-one device having an input tray for stacking a plurality of sheets in feeding communication with a unidirectional feedpath including a simplex path and a duplex path. An image sensor is aligned with first and second platens along the unidirectional feedpath and a selectively actuatable gate is disposed downstream of the input tray directing each of the plurality of sheets through one of a simplex or duplex scanning path. An image sensor is in optical communication with the first and second platens and the simplex and duplex paths.

An image capturing device with duplex scan function for scanning a to-be-scanned document and a method therefor. A first image sensor senses the a first optical signal unit of a first side data of the to-be-scanned document and outputs the generated first analog signal unit. A second image sensor senses a second optical signal unit of a second side data of the to-be-scanned document and outputs the generated second analog signal unit. An ASIC controls exposure timings of the first image sensor and second image sensor. A multiplexer alternately selects the first analog signal unit or the second analog signal unit. The ASIC sequentially and alternately outputs a first digital signal unit and a second digital signal unit, converted from the first analog signal unit and the second analog signal unit by an A / D converter.

An image scanning device includes a first scanner scanning a top side of a transported document at a first scanning position to obtain a first scanned image, a second scanner scanning the back side of the transported document at a second scanning position to obtain a second scanned image, a document feeder transporting a document at the second scanning position at a speed differing from the transportation speed at the first scanning position, and a controller controlling the image scanning device. The controller sets, as a scanning form of a document, either one-side scanning of scanning one side of a document through one transportation, or dual-side scanning of scanning both sides of a document through one transportation. The controller also obtains a set magnification. The controller determines the transportation speed by the document feeder such that, when one-side scanning is set, the scanning magnification in a first direction corresponding to the document transportation direction at the first scanned image attains the set magnification, and when dual-side scanning is set, the scanning magnification in the first direction at the second scanned image attains the set magnification.

An image scanning device includes a scanning specifying unit, a first transportation path, a second transportation path, a path switching unit, and a document detection unit. The scanning specifying unit specifies as a scanning method of a document either a double sided scanning or a single sided scanning. The first transportation path is a transportation path for double sided scanning to scan a first surface and a second surface of the document in order. The second transportation path is a transportation path for single sided scanning, which is shorter than the first transportation path, to scan the second surface of the document. The path switching unit selects either the first transportation path or the second transportation path based on the specified scanning method. The document detection unit detects the document with the first surface scanned and the second surface not scanned when the double sided scanning is interrupted. The path switching unit selects the second transportation path for the transportation path of the first document in the resumed double sided scanning based on a detection result of the document detection unit.

The invention relates to an automatic teller machine based on face recognition on three sides. The automatic teller machine is characterized by comprising a main machine, a camera group, a semitransparent customer operating room, a large touch screen, a light adjusting device, a face recognition device, an identity card reader, an identity card double-sided scanning device, a second-generation identity card reader, a second-generation identity card double-sided scanning device, two USB (universal serial bus) digital certificate interface, an online verification citizen identity information device, a cleaning towel device and a remote background service processing center; the automatic teller machine photographs a picture of a customer to be respectively checked with the picture on the identity card read by the identity card reader and the picture of the identity card returned by the online verification citizen identity information system, and the service can be carried out when the picture is successfully checked; the identity card is withdrawn if the picture checking is failed, the cleaning towel device is powered on, the customer is reminded of removing a helmet, a gauze mask and spectacles and having normal facial expression so as to repeatedly check; when the picture is still failed in the second checking and the customer still applies to the service, the host machine calls the remote background service processing center to process.

An analysis section for performing a predetermined image analysis processing for each of a first image and a second image generated by a performance of duplex scan by a scanner section and a receipt processing apparatus for determining an image of a front of a receipt on the basis of an analysis result of the analysis section.

A scanner with double face scanning function, used for scanning first face and second face of the file, comprises chassis, transmit plate and underpart optical mechanical device. The chassis has an opening part,the transmit plate is positioned at the opening part. The underpart optical mechanical device is positioned in the chassis in the chassis under the transmit plate. The underpart optical mechanical device also has a image sensible head. The scanner at least includes: a file holder positioned above the transmit plate used for fixing the file and making the file positioning above the transmit plate with upright state. The first upside optical mechanical device is positioned at the one side of first face above the transmit plate, used for scanning the first face; the second upside optical mechanical device is positioned at the second face above the transmit plate, used for scanning the second face.

An opening method for a double-sided scanner is provided. A light source of one particular color inside a first group of light sources and a light source of a different color (or the same color) inside a second group of light source are lit to scan the front and back surface of a scan document. Optical signals from the front and back surface of the scan document are received and converted into analogue electrical signals. Thereafter, the analogue electrical signals are converted into digital electrical signal. Finally, the digital electrical signals are output to a host computer. This invention utilizes two groups of light sources (for example, light-emitting diodes) to serve as light sources for the double-sided scanner. Because light-emitting diodes require no warm-up period and is quick to switch, double-sided scanning is simplified.

The invention discloses a double-sided scanning flatbed scanner comprising a main scanning device (1) and a transmission mechanism. The double-sided scanning flatbed scanner is characterized in that the main scanning device (1) and a second scanning device (2) are respectively positioned on the upper side and the lower side of a manuscript to simultaneously scan the front side and the back side of the manuscript; the second scanning device (2) is installed inside a cover plate (3); the cover plate (3) can rotate by taking a sliding rail (4) as an axis; meanwhile, the second scanning device (2) also rotates along the cover plate (3). The double-sided scanning tablet scanner can be used for carrying out high-precision double-sided scanning on various bills, identity documents and the like and is practical and simple.

The double-surface scanner with flip scanning unit comprises: a shell, a feeding mechanism to feed file along a channel included a front / middle / back segment, a scanning unit rotatable set in shell to scan the file on middle channel, and a driver. Wherein, the feeding mechanism first feeds the file from the front to the back segment along the channel, then the driver rotates the scanning unit scanning unit for 180deg, and the feeding mechanism feeds the file again for dual-surface scanning.

A double-faced scanner comprises first and second scan module, drive mechanism, power source and control process unit. The first scan module scan the front face of document waiting for scanning and acquire front face image of the document; second scan module scan the back face of document waiting for scanning and acquire back face image of the document. Drive mechanism drives document waiting for scanning, first and second scan module to move relatively. Power source bring along drive mechanism and output at least one feedback signal. Control unit receives a scan command and control the drive of power source to drive mechanism by the command. Control unit receives feedback signal and control first and second scan module to scan with double faces by the signal.

A method and apparatus for double-sided scanning of a paper document comprising diagonally offset scanner and traction pinch roller pairs thereby forming a zero-gravity traction feed. The zero-gravity traction feed allows the scanning apparatus to be oriented in varying positions while maintaining full operation. The scanner is adapted to scan a two-sided document by flip-flopping between two scanners whose field of views each face opposing sides of the document.

The invention relates to a scanning device and a scanning method. The scanning device comprises a first scanning part, a second scanning part, a first light-transmitting plate and a correcting part, wherein the first light-transmitting plate is used for bearing documents to be scanned and is arranged between the first scanning part and the second scanning part; the correcting part is used for correcting the first scanning part and the second scanning part and is provided with a first surface and a second surface which are opposite; opposite to the first scanning part, the movable second scanning part is provided with a first position and a second position; when the second scanning part is positioned at the first position, the first scanning part and the second scanning part carry out double-surface scanning on the documents to be scanned; when the second scanning part is positioned at the second position, the first surface of the correcting part corrects the first scanning part, and the second surface of the correcting part corrects the second scanning part. According to the scanning device, one correcting part can be utilized for correcting the first scanning part and the second scanning part simultaneously, so that not only is the cost saved, but also the introduction of correction errors can be reduced.

An image scanning apparatus includes a first scanning unit to scan a first side of a conveyed document and detect a white area, a direction change unit to re-convey the conveyed document to a duplex scan path, a second scanning unit to scan the white area of the re-conveyed document, and a controller to perform a shading correction of the second scanning unit using scan data for the white area.

The invention relates to a horizontal CCD (charge-coupled device) two-sided line scanning system, and belongs to the technical field of machine vision image processing. The system comprises a horizontal scanning system support. The both ends of the horizontal scanning system support are provided with an extracting mechanism and a discharging mechanism; an upper CCD scanning mechanism is disposed between the extracting mechanism and the discharging mechanism; a first LED (light-emitting diode) controllable illuminant lighting device is disposed below the upper CCD scanning mechanism; a conveying device A and a conveying device B are disposed below the first LED controllable illuminant lighting device; a scanning opening is disposed between the conveying device A and the conveying device B; a second LED controllable illuminant lighting device is disposed below the scanning opening, and a lower CCD scanning mechanism is disposed below the second LED controllable illuminant lighting device. By using horizontal way to perform two-sided scanning, the system can scan multiple items side by side at one time; the items can be allowed to roll and continuously transport and a next plate can enter into the scanning area without waiting for the completion of one transport period, and therefore, production efficiency is greatly improved.

An image scanning apparatus comprises: a first image scanning unit that performs image scanning of a first surface of an original; a second image scanning unit that performs image scanning of a second surface of the original; and a control unit that controls output channels for outputting analog signals from the first image scanning unit, wherein the control unit changes, between a case of single-sided scanning and a case of both-sided scanning, the output channels of the analog signals output from a part of scanning region in a plurality of scanning regions of the first image scanning unit, and changes, between a case of single-sided scanning and a case of both-sided scanning, the number of output channels for outputting the analog signals from the first image scanning unit.

A food grain two-side scanning device provided by the application comprises a supporting frame and a scanning device mounted inside the supporting frame, wherein the scanning device comprises an upper scanner and a lower scanner which are arranged in an up-and-down manner and scanning surfaces of the upper scanner and the lower scanner are opposite; and a transparent plate which can move forwards and backwards in a horizontal plane is arranged between the upper scanner and the lower scanner. The supporting frame plays a supporting role, two side image acquisition of food grains is realized through the two scanners, and meanwhile, a movable shielding piece is additionally arranged to be used as a background during scanning, so that the scanning effect is better, the foundation is laid for image recognition of incomplete food grains, and problems that food grain image acquisition cost is high and the sampling efficiency is low in the prior art are solved; and in addition, the cost is low, the sampling efficiency is high, and the device for two-side scanning of a certain amount of the food grains in multiple directions is provided.

The utility model relates to a double-sided scanner, which is characterized in that two openings are arranged at the bottom of a feed box respectively, enabling a pickup roller and a combing roller pass through the opening, thereby the double-sided scanner begins to scan from the bottom of a pile of documents. The utility model has the advantage that a file of documents are scanned from the bottom using secondary double-sided scanning, therefore the scanned documents and the documents before scanning has the same order.

A duplex scan apparatus includes an ASIC for outputting timing, a first CCD, a second CCD, a first AFE, and a second AFE. The first CCD is for sensing the first face of the to-be-scanned document and outputting first image data according to the timing. The second CCD is for sensing the second face of the to-be-scanned document and outputting second image data according to the timing. The first AFE is for converting the first image data into first digital data and outputting the digital data to the ASIC for processing. The second AFE is for converting the second image data into second digital data and outputting the digital data to the ASIC for processing. A constant data amount corresponding to the timing is a sum of a first data amount of the first digital data and a second data amount of the second digital data.

The invention provides a scanning device. The scanning device comprises a first scanning module and a second scanning module and is used for conducting double-side scanning on a manuscript to be scanned. The first scanning module comprises a first light source, a first imaging section and a first scanning window, an area which corresponds to the first imaging section and is located in a transmission channel is defined as a first scanning area, and an area which is located in the transmission channel and irradiated by a ray of light sent out by the first light source through the first scanning window is defined as a first irradiation area. The second scanning module comprises a second light source, a second imaging section and a second scanning window, an area which corresponds to the second imaging section and is located in the transmission channel is defined as a second scanning area, and an area which is located in the transmission channel and irradiated by a ray of light sent out by the second light source through the second scanning window is defined as a second irradiation area. The first scanning area is not overlapped with the second irradiation area, and the second scanning area is not overlapped with the first irradiation area. The scanning device is compact in structure, and simultaneously, light interference between the first scanning module and the second scanning module can be avoided.

The present invention relates to a device for document automatically entering and exiting and a method using the device to scan documents in two-sides; the device comprises an input tray, an exit tray, a scanning module, a first steering group, a second steering group, first to fourth paths, and an exit path. During double-sided scanning, documents can be sent to the scanning module through the first path to scan the first side; then the documents can be sent by the second path to the first steering group, and can be sent back to the first path consequently by the third path via the inversion of the first steering group, and can be scanned for second time by the scanning module; and then the documents can be sent to the second steering group along the fourth path, and next, under the help of the second steering group, the documents can be sent along the exit path to the first steering group, and then can be sent to the exit tray to finish the double-sided canning; via the paths and a first leading unit, the present invention can not cause repeated paths no matter how the documents are on the way of one-sided canning and double-sided canning, thereby avoiding paper blocking, solving the problem of ordering paper as well as shortening the canning path and time.

The invention relates to a double-sided scanning device, which comprises an automatic paper feeder and a platform type scanner, wherein the automatic paper feeder comprises a feeder shell, a scanning glass sheet and a first light source; and the platform type scanner comprises a scanner shell, a glass platform, a second light source and a scanning module. In the double-sided scanning device, as the scanning glass sheet and the first light source are arranged in the automatic paper feeder and scanning is performed in the automatic paper feeder, the two sides of a file can be scanned by feedingthe file once and the quality of the scanning in the automatic paper feeder can be improved; and thus, the drawbacks of the conventional double-sided scanning device are overcome.

A dual-face scanning device includes a first image scanning module, a second image scanning module, a first scanning background assembly, a first luminance correcting assembly, a second scanning background assembly, and a second luminance correcting assembly; when the second image scanning module moves to a scanning position with respect to the first image scanning module, the second image scanning module can drive the first scanning background module to move with respect to the first image scanning module, the first scanning background assembly and the second scanning background assembly are aligned with the first image scanning module and the second image scanning module respectively, and use as scanning backgrounds of the first image scanning module and the second scanning module respectively, and then an object image matching the actual size of an object is cut.

A duplex scan method of detecting document size includes the steps of: (a) detecting size of a document and generating a size signal while moving the document from a sheet input tray to a reverse region; (b) moving the document across a scan region from the reverse region to the reverse region and scanning a back side of the document at the scan region according to the size signal; and (c) moving the document across the scan region from the reverse region to a sheet output tray and scanning a front side of the document at the scan region according to the size signal.