Abstract: A shape-changeable mouse includes a first casing, a second casing, a push rod, a sliding element and a third casing. The push rod is pivotally coupled with the first casing and the second casing. The second casing has a first positioning hole and a second positioning hole. The sliding element has a positioning post. The third casing is used for storing a sensor. The third casing is rotatable relative to the first casing to lie flat on a sensing surface. In a case that the positioning post is inserted into the first positioning hole, a first angle is defined between the first casing and the second casing. Whereas, in a case that the positioning post is inserted into the second positioning hole, a second angle is defined between the first casing and the second casing.

Abstract: An airflow-sensing computer cursor generator includes a microprocessor and plural air flow rate sensors. The plural air flow rate sensors are used for sensing airflow rates resulted from a moving action of an inductor in plural directions, thereby generating respective air flow rate signals corresponding to the plural directions. The microprocessor is used for judging a moving direction and a displacement value of the inductor according to the air flow rate signals, thereby generating a computer cursor signal.

Abstract: A retard roller of an automatic document feeder provides a frictional force to separate plural documents from each other. The retard roller can provide a first damping torque and a second damping torque with different directions. The second damping torque is smaller than the first damping torque. As such, the frictional force exerted on the document is reduced for returning the document out of the automatic document feeder. A retard roller module having such a retard roller is also provided.

Abstract: The present invention relates to a scanner with auto document feeder including a housing, an auto document feeder and a connecting mechanism for connecting the housing and the auto document feeder. The connecting mechanism includes a first connecting structure and a second connecting structure. The first connecting structure let the auto document feeder rotates with respect to the housing to a first angle and the second connecting structure let the auto document feeder rotates with respect to the housing to a second angle. The second connecting structure makes the auto document feeder stop at any angle within the second angle.

Abstract: A jamming detection method and a sheet laminating apparatus using the jamming detection method are provided. The sheet laminating apparatus includes a laminating channel, a laminating roller assembly, a distance sensor, a document sensor and a controller. The distance sensor is used for measuring a moving distance of a document. The document sensor is used for detecting a transmitting status of the document. According to the moving distance of the document and the transmitting status of the document, the controller discriminates whether a jamming condition of the sheet laminating apparatus occurs.

Abstract: An optical image system includes an image pickup module, a swinging mechanism, a first swinging calibration element and a second swinging calibration element. When the optical image system is tilted because of handshaking, the image pickup module is swung by the swinging mechanism. At the same time, the first swinging calibration element and the second swinging calibration element detect whether the image pickup module is swung to an ideal position where the handshaking problem is eliminated.

Abstract: A storage device for a tablet personal computer is provided. The storage device includes a base and an upper cover for fixing the tablet personal computer. The base includes a foldable structure. When the foldable structure is folded and stacked on a side of the base, a receiving space for fixing a keyboard device is defined by the base and the foldable structure. In such way, the tablet personal computer and the keyboard device can be simultaneously stored within the storage device.

Abstract: A two-level pressure sensitive keyboard includes at least one key and a membrane switch circuit module. The membrane switch circuit module includes a first contact, a second contact, a first spacing layer for separating the first contact from the second contact, a third contact, a fourth contact, and a second spacing layer for separating the third contact from the fourth contact. The thickness of the second spacing layer is greater than that of the first spacing layer. When the key is depressed in response to the first pressure, the first contact and the second contact are electrically connected with each other to generate a first sensing signal. When the key is depressed in response to the second pressure, the first contact and the second contact are electrically connected with each other and the third contact and fourth contact are electrically connected with each other to generate a second sensing signal.

Abstract: A roll shaft structure is provided for fixing a first roll or a second roll. The roll shaft structure includes a shaft body, a first ring and a second ring. The diameter of the shaft body is equal to the inner diameter of the first roll. The diameter of each of the first ring and the second ring is equal to the inner diameter of the second roll. When the shaft body penetrates through the first roll, the shaft body is contacted with the inner wall of the first roll, so that the first roll is fixed on the roll shaft structure. Whereas, when the shaft body penetrates through the second roll, the first ring and the second ring that are fixed on the shaft body are contacted with the inner wall of the second roll, so that the second roll is fixed on the roll shaft structure.

Abstract: A retard roller and a retard roller module are provided. The retard roller is used in an automatic document feeder for providing a frictional force to separate plural documents from each other. Unidirectional rotation of the retard roller is permitted. Due to the unidirectional rotation, the contact surface of the retard roller can be switched. During the sheet-feeding process, the document is contacted with a specified contact surface. By rotating the retard roller, the document is contacted with another contact surface.

Abstract: A barcode evaluation method for receiving an input image, performing an evaluation along a scanning direction upon the input image, and generating a barcode evaluation data includes: deriving at least one first luminance group in the input image according to a luminance threshold; documenting a plurality of characteristic values corresponding to the at least one luminance group, respectively; referring to a plurality of characteristic values of at least one specific first luminance group within the first luminance group to determine a distribution direction, and determining whether the specific first luminance group belongs to a barcode; and utilizing a processing element to generate the barcode evaluation data according to the input image, the distribution direction and the scanning direction.

Abstract: A wheel mouse includes a base, a circuit board, a scroll wheel, a wheel swing member, two tilt switches, and a mode-switching element. The wheel swing member has an extension arm. The mode-switching element has an engaging part. The mode-switching element is penetrated through the base and the circuit board and partially protruded outside the surface of the base. By moving the mode-switching element to a first position or a second position, the engaging part is engaged with or separated from the extension arm, so that the wheel mouse is selectively operated in a third-axial wheel operating mode or a tilt wheel operating mode.

Abstract: An automatic document feeder includes a transfer channel, a pick-up module and a thickness detecting module. The thickness detecting module includes a detecting member, a transmission member and an optical displacement sensing member. By the pick-up module, a sheet article is fed into the transfer channel. When the sheet article is transported across the detecting member, the sheet article is sustained against the detecting member, so that the detecting member is moved. The transmission member is connected to the detecting member. As the detecting member is moved, the transmission member generates a displacement amount. The optical displacement sensing member is used for detecting a displacement amount of the transmission member, thereby acquiring the thickness of the sheet article.

Abstract: A wireless electronic device testing method utilizes a computer to test a wireless electronic device. The wireless electronic device testing method includes the following steps. Firstly, at least one wireless signal is received. Then, a device type of the wireless electronic device is recognized according to the wireless signal. Then, a judging step is performed to judge whether the device type of the wireless electronic device complies with a preset device type. If the judging condition is satisfied, the wireless signal is converted into a control code. Then, another judging step is performed to judge whether the control complies with a preset control code. Afterwards, a judging result is shown. In this testing method, the wireless signal is converted into a control code by a control program, and the control code is directly transmitted to a test program to be tested. As a consequence, the testing efficacy is enhanced.

Abstract: A sheet pick-up module includes a driving shaft, a driving shaft sleeve, a pick-up driving roller, a pick-up roller sleeve and a sliding sleeve. When the driving shaft is rotated to drive rotation of the driving shaft sleeve, the driving shaft sleeve pushes the sliding sleeve toward the pick-up roller sleeve, and the sliding sleeve is rotated to push the pick-up roller sleeve, so that the pick-up driving roller and the pick-up roller sleeve are synchronously rotated to transport the document at a pick-up speed. When the feed roller is contacted with the document to transport the document at a feed speed faster than the pick-up speed, the pick-up driving roller is driven to rotate by the document, and the pick-up roller sleeve is rotate to push the sliding sleeve, so that the sliding sleeve is moved in a direction away from the pick-up roller sleeve.

Abstract: A scanning apparatus includes a scanning module. The scanning module includes plural light emitting diodes, a porous reflective plate with plural openings, and a reflective element. When the scanning apparatus starts scanning a document, the light beams emitted by the light emitting diodes are directed to the porous reflective plate. A portion of light beams reflected by the porous reflective plate are defined as reflected light beams. The light beams penetrating through the openings are diffracted to be diffractive penetrated light beams. The reflected light beams reflected by the reflective element and the diffractive penetrated light beams are projected on the document, so that enhanced uniform illumination efficacy is achieved.

Abstract: The present invention provides a computer cursor control system comprising a touchpad device and a cursor control program. The cursor control program displays a virtual pointer on a screen according to a finger's touch on the touchpad device and simultaneously moves a computer and the virtual pointer according to the finger's movement on the touch pad device. Finally, the compute cursor is moved to the virtual pointer's position responding to a switch signal generated by the touchpad device.

Abstract: A thickness detecting mechanism is provided for detecting a thickness of a to-be-measured article. The thickness detecting mechanism includes a detecting arm and an optical displacement sensing module. The detecting arm is moved as the to-be-measured article is sustained against the detecting arm. The detecting arm includes a surface. The optical displacement sensing module detects the surface of the detecting arm when the detecting arm is respectively located in a first position and a second position. According to the displacement amount of the detecting arm from the first position to the second position, the thickness of the to-be-measured article is acquired.

Abstract: A sheet feeding apparatus includes a sheet feeding channel, a sheet feeding structure, a sheet stopping structure, plural sensing arms, an optical sensor and a controller. By the sheet feeding structure, a paper sheet is fed into the sheet feeding channel. The sheet stopping structure is used for stopping the paper sheet from being moved forwardly. During the process of feeding the paper sheet, the plural sensing arms are pushed by the paper sheet to be rotated. According to the rotating statuses of the sensing arms, the optical sensor issues different signals to the controller. According to these signals, the controller will control the operations of the sheet stopping structure and the sheet feeding structure, thereby correcting the skew condition.

Abstract: The present invention relates to an input method of a pointer input system. A setting procedure and a correcting procedure having been performed on the pointer input system to obtain a space conversion relationship and an over-bright position. The input method includes steps of inputting at least a light spot into a projection screen, capturing the light spot by a photosensing system to obtain a light-spot image, recognizing at least a relevant light spot of the light-spot image by checking whether the light-spot image excluding the over-bright position complies with a light-spot characteristic situation so as to obtain at least a light-spot data, and converting the at least a light-spot data into at least an input data of a data processing system according to the space conversion relationship.