Abstract: This invention discloses a method of producing a light source compensating element for adjusting the brightness distribution of light projected from a light source of a scanner onto a scanned object. The light source compensating element produced in accordance with this invention can be arranged between the scanner light source and the scanned object, thereby obtaining an even (or uniform) brightness distribution on the scanned object. In addition, compensating element with specific transmittance distribution can also be produced and placed between the light source of the scanner and the scanned object, whereby the light emitted from the light source through the compensating element has a specific brightness distribution on the scanned object.

Abstract: Provided is a transparency scanner having a light source which is synchronously moved with the image sensor of the scanner by using magnetic force to establish a solid connection between the transparency scanning light source and the image sensor while scanning a transparency. A motor is used to synchronously move the transparency scanning light source and the image sensor to avoid the errors produced by driving devices such as different motors or gears, etc. Therefore, synchronous movement of the transparency scanning light source and the image sensor can be ensured, and the deterioration of the scanning quality due to various distributions of the intensity of the light source can also be avoided.

Abstract: A trigger mechanism is provided for triggering an eject device of an electronic equipment with a front panel door. The eject device ejects a tray device, movably seated within the space of the electronic equipment, out of the electronic equipment when triggered. The trigger mechanism cooperates with the front panel door to trigger the eject device. The trigger mechanism works to trigger the eject device when a predetermined displacement of the front panel door form a normally closed position takes place. According to the invention, user can eject the tray device of the electronic equipment only by pressing the front panel door of the electronic equipment such that mistaken pressing of another functional button set on the front panel of the electronic equipment and possible cut of user's hand can be prevented. The trigger mechanism is composed of several simply mechanical components replacing a conventional trigger mechanism via a button such that manufacture cost of the electronic equipment can be reduced.

Abstract: A keyboard includes a keyboard body and a cover. On the keyboard body are provided grooves. The cover has pivots movably mounted in the grooves so that the cover is rotatable and movable with respect to the keyboard body. Alternatively, slots are provided on the cover. The keyboard body has pivots movably mounted in the slots so that the cover is rotatable and movable with respect to the keyboard body.

Abstract: A scanner has a base, at least one guiding member and an optical module. The base has a changing zone. The guiding member is connected onto the base. The optical module has a movable lens mount, a swing mechanism rotatably connected to the lens mount, a first lens provided on the lens mount and a second lens also provided on the lens mount. When the optical module moves into the changing zone of the base, the swing mechanism is pushed by the guiding member and then rotates so that the lens mount connected to the swing mechanism begins to move until one of the first and second lens provided on the lens mount moves to a predetermined position for use.

Abstract: An input/output connector adapted for a mobile electronic device. The input/output connector includes a first connecting member, a first terminal, at least one second terminal and a second connecting member. The first connecting member is disposed inside the mobile electronic device and is provided with a first terminal hole and at least one second terminal hole. An engaging block is positioned inside the first terminal hole. The first terminal is provided with an elastic arm for pressing toward the engaging block contiguously. The second connecting member is provided with a head portion and an engaging slot. When the head portion is inserted into the first terminal hole, the engaging slot engages with the engaging block by the elastic force of the elastic arm. According to the input/output connector of the present invention, the plug is not easily worn out. Furthermore, the input/output connector of the present invention occupies less space.

Abstract: A method is provided to prevent flash memory in a computer system from being miswritten. According to this method, a control parameter records the normal paths of a process module. Then a judge module decides whether or not the flash memory is to be written. When the judge module decides the flash memory is to be written, a prepare module conducts preparations for the flash memory. Then a check module is provided to confirm the normal paths from the process module in response to the control parameter, and a write module is provided to write the flash memory when the check module confirms the normal paths from the process module. An error module may be provided to restart the process module or the computer system or provide a warning signal when the check module does not confirm the normal paths from the process module.

Abstract: A linked PCB and the linking method thereof are provided. In an embodiment, a first PCB is provided with a first row of through holes defined at a first side to connect signals therefrom. A second PCB is provided with a second row of through holes at a second side to connect signals therefrom. The first and second rows of through holes are aligned with each other using a fixing device. Using an element-inserting machine jumpers are provided between the first and second rows of through holes to connect the signals from these two PCBs.

Abstract: The invention relates to a signal transmission circuit of a wireless telephone handset for reducing power consumption. The signal transmission circuit comprises a voice transformation circuit for transforming a user's voice into a voice signal, a voice modulator electrically connected to the voice transformation circuit for modulating the voice signal and transforming it into a radio frequency signal, a power amplifier electrically connected to the voice modulator for amplifying the radio frequency signal, a first switch electrically connected to the power amplifier for turning the power amplifier on and off, an antenna for transmitting the radio frequency signal outputted from the power amplifier, and a control circuit for controlling operations of the telephone handset.

Abstract: The present invention provides a reflective projection lens set for a digital light processing projector having a digital mirror device transmitting rays of intended and unintended light. The lens set comprises a first and a second mirror. The first mirror has a reflective surface positioned to receive and therefore reflect the rays of intended light. The second mirror has a reflective surface positioned to receive and therefore reflect the rays of intended light reflected from the first mirror, and an opaque surface on the backside positioned to prevent the rays of unintended light from intruding into the path of the rays of intended light.

Abstract: An image reading apparatus utilizing an indirect-contact transmission arrangement. The image reading apparatus includes a securing apparatus for placing a object for scanning; an image receiving apparatus; a guiding shaft; a transmitting component which can slide along the guiding shaft and drive the securing apparatus to move relatively to the image receiving apparatus via an indirect-contact component; and a dragging component which connects and drives the transmitting component. The indirect-contact component prevents the dragging component from transmitting vibrations generated during the scanning process to either the securing apparatus or the image receiving apparatus.

Abstract: A joint device for coupling a cover with a body of a scanner. The joint device has a pivot means to enable the cover be lifted upward to a height desired according to the thickness of the scanning document. The pivot means has inner walls closed to the interior of the scanner so that outside dusts and dirts won't seep into the scanner. Scanner mechanism may be prevented from contamination and may maintain high scanning quality. The pivot means is simply structured with fewer materials and may be made at less time and low cost.

Abstract: A structure of an ink-jet printer head of a piezoelectric type comprising a deformable polymer membrane, an actuator and an ink tank is provided. The deformable polymer membrane covers the top opening of the ink tank to enclose the ink tank. The actuator, which is a double-layer piezoelectric ceramic plate, is mounted on the deformable polymer membrane with one end thereof being fixedly connected to the polymer membrane and the other end thereof being free to vibrate. As a double-layer piezoelectric ceramic plate is employed as the actuator, it includes a top and a bottom piezoelectric layers. A predetermined voltage signal is applied selectively across the upper-surface electrode and the lower-surface electrode of the top and bottom piezoelectric layer respectively such that the top piezoelectric layer extends and the bottom layer shortens selectively.

Abstract: A single-button support mechanism is provided to improve a turning means joining an upper portion and a body of a device. The support mechanism constructs a pivot and a holding groove at the upper portion and, at the body, a cam trough, a button groove, and another groove for accommodating a retaining member to further hold a first spring. The cam is formed as saw type teeth at a peripheral thereof, and each tooth of the cam has a notch engageable with a position button. By applying the single-button support mechanism, the turning means can utilize the cam moving in the cam trough for engaging with the upper portion at a selected angle, and utilize the position button movable in the button groove for controlling the opening or closing of the upper portion.

Abstract: The present invention relates to a structure for keyboard assemblies with enhanced water-resistance for protecting a circuit, or electrical apparatus from liquids. The keyboard assembly makes use of a rubber sheet mounted between the base and the step portion of the keyboard hood.

Abstract: An ornament cap for covering a groove formed in a first casing which is fastened to a second casing by means of a fastening device accommodated in the groove, the cap includes a seat formed in the groove and an insert for engaging with the seat. At the engaging interface of the insert and the seat, a vertical limiting means is provided to form a vertical limiting position for preventing the insert from vertically separating from the groove after engagement, and a horizontal limiting means is provided to form a horizontal limiting position for preventing the insert from separating from the groove horizontally along the groove. There are a first stable state defining a separated state between the insert and the seat and a second stable state for engaged state between the insert and the seat. The horizontal limiting means may jump from the first stable state to the second stable state under an external force is applied to the horizontal limiting means to complete the engagement of the insert and the seat.

Abstract: A key mechanism includes a keycap, a base plate installed under the keycap having three guide channels, a connecting device installed between the keycap and the base plate for movably connecting the keycap to the base plate in an up and down manner, and a resilient element installed under the keycap for elastically supporting the keycap upwardly. The connecting device includes a first connecting piece and a second connecting piece, each having a front end, a center portion, and a rear end. Each of the center portions of the first and second connecting pieces has a left end and a right end, and the left and right ends of the center portions of the connecting pieces are pivotally connected to each other. The left and right ends and the center portion of the front end of the first connecting piece are slidably and separately received in the three guide channels, while the rear end of the first connecting piece is pivotally mounted beneath the keycap.

Abstract: A power circuit of an electronic device which can reduce power consumption. Power is saved by turning off the voltage booster in the power-saving mode. A controller is used to generate a control signal indicating whether or not the electronic device is in a power-saving mode. A switch, coupled between the voltage booster and its power supply, is used for disconnecting the power supply from the voltage booster when the control signal indicates that the electronic device is in the power-saving mode.

Abstract: A keyboard with key codes switchable by means of a single modifier key and a method of control thereof are provided. When a modifier key such as an Alt key, a Ctrl key, or a Shift key is pressed and then immediately released, the set of key codes is switched to another if no other modifiable key stroke is inserted during the press-and-release operation. Consequently, multimedia hot keys will be obtained by switching the key code set to another set of key coding that represents individual multimedia functions.

Abstract: A reflective/transmissive scanner having a transmissive mode light source that is synchronously moved with the image-retrieving device. The scanner is provided with a scanner body having an upper surface with slots formed therethrough and a first transparent plate disposed in an aperture in the upper surface of the scanner body on which an object to be scanned is placed. A second transparent plate is provided in the lower surface of the scanner lid, corresponding slots being formed in the second transparent plate. A first support frame is disposed within the scanner body, with a reflective light source and an image retrieving device disposed thereupon, and a second support frame is disposed within the scanner lid, with a transmissive mode light source disposed thereupon.