Abstract: A stream data buffer device suitable for a client program comprises a buffer having N numbered sub-buffers, a buffer agent having a sub-buffer table recording a state of a corresponding sub-buffer, wherein the state comprising a first state and a second state, and a FIFO queue to record numbers of the sub-buffers having the fist state. When client program receives and stores stream data to stream data buffer, client program requests for a first sub-buffer having second state to store, and after storage, buffer agent changes the state of first sub-buffer to first state and transmits the number of the first sub-buffer to the FIFO queue. When a number of a second sub-buffer having the first state is available, the client program pops the number of second sub-buffer out of FIFO queue and accesses the data thereof, and the buffer agent changes the state of second sub-buffer to second state.

Abstract: A ribbon cassette structure is provided. The provided ribbon cassette structure includes a cartridge having at least a rotating structure. The rotating structure includes a first actuating element, a first connecting element, a second actuating element and a support shaft. The first connecting element is located between the first actuating element and the second actuating element, and the second actuating element is located between the first actuating element and the support shaft.

Abstract: An improved structure of carriage module has a datum board with a very flat surface, a linear light-source, a pair of side boards and a light-transforming module. The datum board has a flat-rigid connecting surface formed with a plurality of screw holes therein. The linear light-source is fixed at a front edge of the datum board for providing light. The side boards are respectively disposed on two sides of the connecting surface and assembled with a plurality of reflecting mirrors therebetween for reflecting light. The light-transforming module is assembled on a middle portion of the connecting surface for receiving an image and transforming the image into an electric signal. The datum board has an axle sleeve mounted on one side thereof for the carriage module to slide thereon.

Abstract: In a photo printer, with a translating cam at a horizontal displacement, a platen roller can be lifted up/down vertically to/from a print head. On the profile of the translating cam, there is plurality of concave surfaces and a convex surface as a follower's path. A platen roller frame is used for supporting the platen roller. As the translating cam moves in the track, the roller installed on the platen roller frame rotates on the translating cam's profile. Following the variation of the translating cam's profile, the platen roller frame carries the platen roller to move vertically, so that the platen roller can move to/from the print head in straight line.

Abstract: A scanning apparatus includes a body, a transparent plate, a scanning module, and a color reference slice. A paper-feeding track is formed within the body, and a scanning window is formed at a side wall of the paper-feeding track. A coupling groove is formed at an edge of the scanning window. Both the transparent plate and the color reference slice have an edge being inserted into the coupling groove, such that the transparent plate covers the scanning window while the color reference slice leans against a side surface of the transparent plate facing the paper-feeding track. The scanning module is disposed within the body corresponding to the scanning window, such that a paper to be scanned and the color reference slice are located in the same plane, and the color reference slice and the paper are scanned under the same optical conditions.

Abstract: A character input system capable of adjusting a character setting corresponding to an input device and a method thereof are disclosed. The input device includes a plurality of input components corresponding to a default character setting. An input component from the input components is utilized for indicating an input of a first character according to the default character setting. The method includes converting the default character setting into a specific character setting; and determining that the input component indicates an input of a second character according to the specific character setting.

Abstract: The present invention provides a digital television receiving antenna for a plug-and-play device. The digital television receiving antenna includes a first conducting portion; and a second conducting portion, coupled to the first conducting portion and having a resonance path, wherein the second conducting portion is position-adjustable relatively to the first conducting portion, and an effective length of the resonance path is greater than a straight-line distance between two end points of the resonance path.

Abstract: An apparatus for determining a printing media material, includes a light source for exposing the printing media to light; an image sensor for sensing reflected light from the printing media to form at least one image corresponding to the printing media; and an image-analyzing unit, electrically connected to the image sensor, for analyzing the image to generate a material parameter and then determining the printing media material according to the material parameter.

Abstract: A driver circuit of a thermal print head is disclosed including: a plurality of gating groups respectively coupled to a plurality of strobe signals of different timings in which each gating group includes a plurality of gate units respectively coupled to a plurality of heating elements; and a register module coupled to the plurality of gating groups for providing each gate unit with a corresponding color level data; wherein each gate unit controls a coupled heating element according to a corresponding strobe signal and a received color level data.

Abstract: A paper feeder includes a base, a roller adjacent to the base, a holder for holding a paper, and a torsional element. The holder has a pivot end and a movable end, wherein the pivot end is pivoted to the base. The torsional element is disposed at a position where the holder is pivoted to the base, and provides torsion to move the movable end of the holder to be pressed against the roller, such that a front edge of the paper is raised to be in contact with the roller. As the roller rotates, the paper is fed into a paper feed track by a frictional force.

Abstract: A media feeding device on an image scanning device which is installed with a transparent supporting board where the media feeding device has a paper tray, a feeding module and a document illumination module. The paper tray accommodates normal opaque documents. The feeding module is connected to the paper tray and it includes paper-feeding rollers to pick one of the normal opaque documents and then feeds it to the transparent supporting board. The document illumination module is embedded on one side of the image scanning device corresponding to the feeding module, and further has a fixing frame and an illumination unit, wherein the fixing frame is installed at the bottom of the feeding module in a movable way, and the illumination unit provides a beam for the image scanning device scanning the normal opaque document to obtain the image data of the normal opaque document.

Abstract: A keypad device includes a keypad with a plurality of keys in a defined order, and a light guide plate disposed under the keypad. The light guide plate includes a plurality of patterns formed by a method of printing on a surface thereof, and each pattern includes adhesive material and reflective material. The keypad device further includes at least one LED lamp disposed beside the light guide plate.

Abstract: A receiver capable of enhancing receiving efficiency in a code division multiple access communication system includes a signal reception end for receiving signals, a data output unit for outputting a plurality of data streams corresponding to a plurality of codes according to signals received by the signal reception end, a control unit for outputting a data stream having maximum signal power when an amount of the plurality of data streams is smaller than a first value, a first multiplication unit for multiplying signals received by the signal reception end with the data stream outputted from the control unit, a high pass filter unit for discarding a DC portion of signals outputted from the first multiplication unit, and a second multiplication unit for multiplying the data stream outputted from the control unit with signals outputted from the high pass filtering unit and outputting a multiplied result to the signal reception end.

Abstract: The present invention discloses a voltage adjusting system and method for adjusting a driving voltage of a thermal print head by utilizing an electronic variable resistor. The voltage adjusting system includes a power converter, a voltage divider, an analog-to-digital converter (ADC), and a controller. The system and method of the present invention obtains a detecting voltage value through a feedback mechanism and the ADC, and then utilizes the detecting voltage value to control the electronic variable resistor implemented in the voltage divider to adjust the driving voltage of the thermal print head.

Abstract: An embedded system and method capable of automatically updating system software. The embedded system includes a first storage device for storing a first system software and a boot image; a microcontroller coupled to the first storage device for respectively converting the first system software and the boot image into a system code and a boot code, for controlling booting of the embedded system; and a connecting interface coupled to the microcontroller and further coupled to an external data storage device through a data transmitting media. The external data storage device contains a second system software. The boot code includes an update agent interface programming (UAIP) code utilized for reading the second system software from the external data storage device through the connection interface to update the first system software.

Abstract: A computer case with a function for fastening an interface card having an extension piece is provided. The computer case includes a positioning portion protruding from a surface of the computer case and having a connecting surface, and an interface card fastener mounted on the surface of the computer case and having a pressing surface pressing the extension piece of the interface card against the connecting surface.

Abstract: An assembly structure for assembling a first plastic shell and a second plastic shell, thereby coupling articles to be assembled such as keyboards and adapters, including a hollow strut and an opening. The first plastic shell has the hollow strut extended from the inner side. The second plastic shell has the opening defined therein and corresponding to the hollow strut and extends inwards to form an annular flange abutting the hollow strut. The hollow strut has a portion extended through the annular flange to be melted by the ultrasonic welding technique, the thermal welding technique, or the combination thereof until reaching the annular flange, to couple the first and second plastic shells for facilitating assembly. Grinding off the melted portion may disassemble the first and second plastic shells. The disassembled the first and second plastic shells may be coupled again by fastening a fastening element in the hollow strut with the head of the fastening element held by the annular flange.

Abstract: A media transfer mechanism applicable to printers, scanners or multi-function printers is disclosed. The mechanism includes a media-feeding path having at least a pickup roller and a feeding roller for transferring the media to be scanned or printed. Particularly, a block member is installed between the pickup roller and the feeding roller and a little below the feeding roller. Therefore, when the pickup roller reverses to withdraw the media to touch the block member, the media enters a turnover path connected with the media-feeding path. After that, the media transferred by the pickup roller and the feeding roller of the media-feeding path is further processed with the second side scanning or printing.

Abstract: A device for paper separating and guiding is provided for separating a first paper sheet from a plurality of second paper sheets, and guiding the first paper sheet into a paper-feeding apparatus. The device includes a first inclined surface and a second inclined surface adjacent to each other. The first inclined surface is used for arranging the first paper sheet and a part of the second paper sheets stepwise, so that the first paper sheet located at the top layer is protruding forwards. The second inclined surface is used for blocking the other second paper sheets to maintain the paper sheets on the first inclined surface to be arranged stepwise, so that the process for paper separating and guiding is accomplished.

Abstract: A heating and fixing device for toner particles is provided, which includes a pressing element, at least one elastic element, a tube-shaped film, and a pressing roller. The elastic element is provided for generating force to press the pressing element constantly. The heating element is provided for heating the pressing element through the heated side. The film is disposed around the pressing element and the heating element, wherein the film slides relative to the pressing element, and the pressing element presses against the film from the inner side of the film and transfers heat to the film by heat conduction. The pressing element presses the film to contact the pressing roller, so that the recording medium is pressed and heated when traveled between the pressing roller and the film.