Patent application number | Description | Published |
20080309619 | Cursor control method applied to presentation system and computer readable storage medium - The invention discloses a cursor control method applied to a presentation system. The presentation system comprises a computer, an imaging plane, an optical pointer, a camera, and a projector. The projector is a mobile or built-in projector of the computer for projecting output from the computer onto the imaging plane, wherein the output of the computer comprises an internal cursor generated by the computer. The optical pointer is used for projecting an external cursor onto the imaging plane. The camera is a mobile or built-in camera of the computer for capturing an image of the imaging plane. After capturing the image, a processor of the computer detects both a first position of the external cursor and a second position of the internal cursor corresponding to the image, calculates a shift vector between the first and second positions, and moves the internal cursor based on the shift vector. | 12-18-2008 |
20080309751 | High-definition video conference system and method - The invention provides a high-definition video conference system and method. The high-definition video conference system, according to the invention, uses an encoding module for compressing a plurality of usable digital signals under a high-definition compression standard into a plurality of compressed digital signals, and an instant-messaging application for transmitting the compressed digitals to a second terminal apparatus. The second terminal apparatus uses a decoding module for decompressing the plurality of compressed digital signals under the high-definition compression standard to obtain a plurality of image signals, and a displaying module for displaying the image signals. Therefore, the high-definition video conference system of the invention can achieve high-definition video conference applications even under limited hardware performance and network transmission bandwidth. | 12-18-2008 |
20080309752 | Three-party video conference system and method - The invention provides a three-party video conference system and method. The three-party video conference system, according to the invention, uses a second terminal apparatus, which can transmit data in different protocols for receiving and transmitting the compressed digital signals transmitted from a first terminal apparatus and a third terminal apparatus. Therefore, even though the first terminal apparatus and the third terminal apparatus can not transmit compressed digital signals to each other with the same protocol, the user still can achieve three-party video conferencing communication with the three-party video conference system. | 12-18-2008 |
20100123663 | Wireless keyboard base and portable electronic device - A wireless keyboard base includes a base, a wireless keyboard and a plurality of magnets. The base has a groove to accommodate an edge of an electronic device. The wireless keyboard is disposed on the base and has a wireless communication module to exchange information data with the electronic device. The plurality of magnets are disposed within the groove to magnetically attract the edge of the electronic device. | 05-20-2010 |
20100253634 | OPTICAL TOUCH DEVICE AND KEYBOARD THEREOF - The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion. | 10-07-2010 |
20110258564 | METHOD FOR AUTOMATICALLY RELOCATING AND DISPLAYING MULTIPLE FILES - A method for automatically relocating and displaying multiple files includes following steps. A first file is opened. When the first file is opened, whether there exists a second file opened and displayed on a first display is detected. If there exists a second file opened and displayed on a first display, the second file is moved and displayed on a second display, and the first file is displayed on the first display. | 10-20-2011 |
20110296343 | METHOD FOR SWAPPING DISPLAY CONTENTS BETWEEN MULTIPLE SCREENS - A method for swapping display contents between a first and a second screen. The first screen is a primary screen. A window is displayed on one of the first and the second screen. The method includes: calculating a window movement distance according to a relative position between the first and the second screen; performing swapping to set the second screen as the primary screen; obtaining a coordinate of the window after swapping; obtaining a first coordinate by adding the window movement distance to the coordinate of the window after swapping if the window is located in the first screen before swapping; obtaining a second coordinate by subtracting the window movement distance from the coordinate of the window after swapping if the window is located in the second screen before swapping; moving the window from one of the first and the second screen to the other. | 12-01-2011 |
Patent application number | Description | Published |
20100310302 | Computer-contained binder - A computer-contained binder provided in the disclosure has a document binder and a computer device. The document binder having at least one cover plate and plural parallel folder rings piercing through an edge of the cover plate. The computer device has a main body, a column-shaped battery portion pierced through by all of the parallel folder rings, and a movable arm. The movable arm has two opposite ends, in which one end thereof is fixed on one of the opposite ends of the column-shaped battery portion, and the other end thereof is movably disposed on one side of the main body. | 12-09-2010 |
20100310303 | Computer-contained binder - A computer-contained binder provided in the disclosure has a document binder and a computer device. The document binder having at least one cover and plural parallel folder rings piercing through an edge of the cover. The computer device has a main body, a column-shaped battery portion pierced through by all of the parallel folder rings, and two shafts. Each shaft respectively pivots the column-shaped battery portion and the main body at two opposite end of the shaft. | 12-09-2010 |
20140118929 | PORTABLE ELECTRICAL DEVICE - A portable electrical device includes a tablet PC, a bottom plate, a support arm and a pivot portion. The tablet PC includes a breach and a first magnetic inducing member arranged inside the breach. One end of the support arm is pivoted to the bottom plate, and the other end of the support arm is pivoted to the pivot portion, and the other end of the pivot portion is with a second magnetic inducing member. When the second magnetic inducing member is moved into the breach to magnetize the first magnetic inducing member, the tablet PC is securely coupled with the pivot portion so that the tablet PC can be rotated; on the contrary, when the second magnetic inducing member is removed from the breach, the tablet PC can be totally independent to the support arm and the bottom plate. | 05-01-2014 |
20140320758 | TOUCH PANEL - Disclosed herein is a touch panel, which includes a first sensing substrate, a second sensing substrate and an anisotropic conducting film. The first sensing substrate includes at least one first sensing series, at least one first signal transmission line, and at least one second signal transmission line. The first sensing series extends in a first direction. The first signal transmission line is connected to the first sensing series. The second substrate faces the first substrate, and comprises at least one second sensing series extending in a second direction crossed with the first direction. The anisotropic conducting film is disposed between the first sensing substrate and the second sensing substrate, and is electrically connected to the second signal transmission line and the second sensing series. | 10-30-2014 |
Patent application number | Description | Published |
20130120275 | OPTICAL TOUCH DEVICE AND KEYBOARD THEREOF - The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion. | 05-16-2013 |
20130241882 | OPTICAL TOUCH SYSTEM AND OPTICAL TOUCH POSITION DETECTING METHOD - The invention provides an optical touch system for detecting a position of a touch object on a touch area, including an active light source for lightening the touch area, a camera having two lenses and an image sensor to capture two images of the touch object on the image sensor through the two lens, and a processor for calculating the position of the touch object according to the two images of the touch object on the image sensor. | 09-19-2013 |
20130241883 | OPTICAL TOUCH SYSTEM AND OPTICAL TOUCH-POSITION DETECTION METHOD - The invention provides an optical touch system, including a camera having a lens and an image sensor to capture an image of a touch object on the image sensor through the lens, an active light source for lighting the touch object, and a processor for determining the distance between the touch object and the camera according to the size of the image or the brightness of the image on the image sensor, determining the direction of the touch object according to the position of the image on the image sensor, and calculating the position of the touch object | 09-19-2013 |
20140062890 | KEYBOARD DEVICE AND ELECTRONIC DEVICE - A keyboard device includes an operation surface. One long side of the operation surface is referred to as a proximal side, which nears a user operating the keyboard device; and the other long side is referred to as a distal side. A key unit is positioned on the proximal side, wherein the key unit includes a plurality of keys. A camera module is positioned on the distal side. An angle between a border of a field of view of the light sensor and the operation surface is set at a particular angle thus user's hand lays outside the field of view of the light sensor when the user is manipulating the key unit. | 03-06-2014 |
20140078060 | INPUT DEVICE AND ELECTRONIC DEVICE - An input device is equipped with a cursor pointing unit including a mechanical control stick and an optical sensor. The optical sensor is mounted on the mechanical control stick and has a contact surface for sensing object motion thereon. A cursor signal is generated when the mechanical control stick is inclined by an exerted pressure. When the mechanical control stick is not inclined, a position frame of the object on the contact surface is retrieved as a reference frame. A real-time position frame of the object is retrieved when the object remains on the contact surface. A speed of the object is calculated according to the reference frame and the real-time position frame. When the speed does not exceed a threshold, a cursor position move is generated according to the speed; and when the speed exceeds the threshold, a switch signal is generated to initiate a gesture controlling mode. | 03-20-2014 |
20140139430 | VIRTUAL TOUCH METHOD - The invention provides a virtual touch method applied to a computer provided with a camera, including: defining a virtual touch plane in the space in front of the screen of the computer, capturing a reference fingertip image of a finger touching the virtual touch plane by the camera and storing the reference fingertip image, capturing an operation fingertip image of the finger in a touch operation by the camera, and comparing the sizes of the reference fingertip image and the operation fingertip image to determine whether the finger touches or pierces through the virtual touch plane. | 05-22-2014 |
20140253509 | VIRTUAL CONTROL DEVICE - A virtual control device is provided for an electronic device. The virtual control device includes a first lens, a second lens, a first photosensitive unit, a second photosensitive unit and a processor unit. The first photosensitive unit is arranged behind the first lens by a focal length, and obtains a first image via the first lens. The second photosensitive unit is arranged behind the second lens by the focal length, and obtains a second image via the second lens. The processor unit determines the object-position coordinates of a virtual control plane according to a first position of the projection of the object on the first photosensitive unit and a second position of the projection of the object on the second photosensitive unit, and the processor unit provides the object-position coordinates to the electronic device. | 09-11-2014 |
Patent application number | Description | Published |
20140204639 | POWER SUPPLY APPARATUS - A power supply apparatus mainly includes a secondary side controller, a digital isolator, a plurality of isolation sensing units, and a driving unit. The secondary side controller is configured to isolatedly measure voltages and currents, and is configured to isolatedly control the driving unit. The power supply apparatus includes a controller only, i.e. the secondary side controller | 07-24-2014 |
20140369078 | BRIDGE CONVERTER WITH SNUBBER CIRCUIT - A bridge converter with a snubber circuit is applied to a power apparatus and a load apparatus. The bridge converter includes a transformer, a first diode, a secondary side first switch unit, a first capacitor, a second diode, a second capacitor, a secondary side second switch unit, a direct current to direct current conversion unit, a third capacitor and a resistor. The transformer includes a primary side winding, a first secondary side winding and a second secondary side winding. | 12-18-2014 |
20150098250 | METHOD OF CONTROLLING PHASE-SHIFT FULL-BRIDGE CONVERTER IN LIGHT LOAD OPERATION - A method of controlling a phase-shift full-bridge (PSFB) converter in a light load operation is provided to switch control modes of the PSFB converter by detecting magnetizing current of a transformer thereof. The method includes following steps: First, the PSFB converter is operated in an extended PSFB control mode when the magnetizing current is larger. Afterward, the PSFB converter is operated in a modified PSFB control mode when the magnetizing current is gradually reduced and electric charges transported by the residual magnetizing current near to or less than a half of the DC input voltage. Finally, the optimal degree of soft switching of the PSFB converter is implemented when the PSFB converter is operated at the modified PSFB control mode. Accordingly, it is to improve overall efficiency, reduce switching losses, and achieve electromagnetic compatibility. | 04-09-2015 |