Abstract: The present invention provides a cursor control system for controlling operations of a pop-up menu. The menu comprises a plurality of command regions, each of which has a correspondent computer command. The system comprises a displaying device for displaying the pop-up menu, a computer electrically connected to the displaying device and a cursor control device electrically connected to the computer. The computer comprises a program for controlling image display of the displaying device and operations of the menu. The cursor control device comprises a housing having a recess installed in it, a cursor controller elastically installed in the recess for generating a shifting signal, and a switch installed in the recess beneath the cursor controller for generating a start signal. When a user presses the cursor controller and thus triggers the switch, the program will receive the start signal generated by the switch and then will display the menu over the displaying device.

Abstract: A computer joystick having a sliding member for measuring rotations of the joystick's control handle is disclosed. The computer joystick comprises a housing having an upper opening, a vertical control handle having a hand holding part and a ball-shaped knob having a vertical groove installed in it, a knob holding means installed under the upper opening of the housing for rotatably holding the knob of the control handle, a sliding member having an inner end, a supporting means installed in the housing for slidingly supporting the sliding member, and a measuring means for measuring movements of the sliding member wherein the inner end of the sliding member is slidably positioned within the vertical groove of the knob and the sliding member is slidably moved within the supporting means by using the vertical groove of the knob when the control handle is rotated.

Abstract: This invention provides an optical sensing system for detecting displacements of a slidable frame along an elongated plate of the system and generating corresponding position or displacement signals. The optical sensing system comprises a housing, an elongated plate horizontally installed in the housing having a plurality of positioning holes and a plurality of parallel conductors installed in it, a slidable frame having a sliding hole in its middle for slidably engaging the elongated plate, an optical sensor installed in the frame and slidably wired to the parallel conductors of the elongated plate for detecting the positioning holes of the elongated plate and generating corresponding sensing signals, and a control circuit wired to the parallel conductors of the elongated plate for converting the sensing signals into corresponding position signals or displacement signals.

Abstract: A view control system for controlling the display of a view within an image over a computer monitor is disclosed. The system comprises a computer for displaying the view over the monitor and for scrolling the view within the image according to scrolling signals so that various portions of the image can be seen through the view, a computer mouse electrically connected to the computer through a flexible cable for controlling movements of a cursor displayed over the monitor, a view control button installed over the mouse for sensing a direction of a finger input and generating scrolling signals according to the sensed direction of the finger input and the length of time of each input to control the scrolling of the view within the image, and a bi-directional button installed over the mouse for generating a zooming signal within the scrolling signal for zooming in or out of the view within the image.

Abstract: The present invention is related to a mouse housing structure which includes a main body for providing a firm housing structure of a mouse, a held portion located over the main body for facilitating the mouse to be held with hand, and an angle-adjusting device installed in the main body and coupled to the held portion for conforming an angle of the held portion relative to a surface the mouse is rested on to the holding manner of a user.

Abstract: An interface device is adapted to control computer peripherals by directly executing drivers installed on the computer and respectively corresponding to the computer peripherals without interrupting currently open applications. The interface device includes a housing, a micro-processor located in the housing for generating control signals corresponding to the computer peripherals and transmitting the control signals to the computer to cause the computer to execute the drivers. A key pad device is located on one surface of the housing, including plural buttons which can be selected by the user to control the corresponding computer peripherals.

Abstract: A finger operated module generates encoding signals by controlling transmission of light in response to finger operation of the module. The module includes a base member, a supporting member movably installed on the base member, and a rotating member rotatably installed on the supporting member, the rotating member partially protruding from a surface of the input device for enabling finger operation. An encoding signal generating media for controlling the transmitted light is provided on a first surface of the rotating member.

Abstract: The present invention is related to a control device for a display state change on a monitor which includes a housing, a first input device mounted in the housing for determining a movement of a cursor on the monitor in an X- and a Y-directions, a second input device for determining two kinds of display state changes which include a movement of the cursor in a Z-direction and a display state change selected from a group consisting of a rotation operation and a picture change on the monitor, and a control circuit mounted in the housing for executing the display state changes. Various preferred operation modes for controlling the display state change on a monitor are also disclosed in the present invention for purpose of providing a easily manipulated control device with more functions than the conventional mouse and track ball.

Abstract: A method for synchronizing scanning speed and data transmission speed of a scanner to eliminate a traditional memory buffer is disclosed. The scanner is connected to a host computer and comprises a charge coupled device (CCD) for converting a line image reflected from a document to be scanned into an array of analog signals. The CCD comprises an analog memory array for storing the analog signals. The method comprises the following steps of:a) outputting an analog signal from the analog memory array;b) converting the analog signal to a digital signal and transmitting the digital signal to the host computer;c) waiting until the host computer acknowledges receiving of the digital signal; andd) repeating steps a) to c) until all the analog signals stored in the analog memory array are processed and transmitted to the host computer.

Abstract: A mouse structure is provided. The mouse structure includes a shell adapted to receive therein a ball, a receiving device for receiving a photo interrupting device in the shell, and an urging device for urging the photo interrupting device to contact against the ball properly. The probability of shift-detection missing is then reduced.

Abstract: The present invention is related to a method used in a cursor controlling apparatus for detecting a direction a cursor should move on a monitor which comprises steps of: intermittently receiving a light to obtain a series of different optical quantities; generating a series of voltage signals respectively responsive to the series of optical quantities; and determining a direction by detecting a sequence of the voltage signals. The present invention can reduce manufacturing cost, economize assembling time, and obtain a more accurate direction.

Abstract: The present invention provides an electrical plug receptacle which includes a housing including a cover having a primary wall and a perimetral wall respectively including a plurality of prong-receiving apertures, and a plate opposite to said primary wall, having a pair of prong projecting through holes and engaging with the cover so as to define an inner space of the housing, a conducting attaching set passing through the pair of prong projecting through holes from an inside of the housing and adapted for attaching the electrical plug receptacle to a wall receptacle, a retaining set encased in the housing, electrically connected to the conducting attaching set and corresponding to the plurality of prong-receiving apertures for retaining therein a plug of an electrical appliance, and a circuit encased in the housing and electrically connected to the conducting attaching set for protecting the electrical appliance when there is a surge voltage.

Abstract: A projecting head mechanism of a projecting machine adapted to project an image generated by a non-reflective document is disclosed. A thermo-conducting metal piece is installed in the projecting head mechanism and the internal surface area of a projecting mirror is coated with silicon compound for evenly and repidly distributing the heat generated by the light beam received by the projecting mirror over the surface area of the projecting mirror, so that the heat will not be concentrated on a spot to damage the projecting machine.

Abstract: A window frame pointing method is used for pointing a window frame out of multiple window frames contained within a window interface by using a mouse. The content of the window interface will automatically be scrolled if the pointed window frame is not displayed over a monitor screen. The mouse comprises a two dimensional control button for generating a two dimensional pointing signal. The window interface is controlled by a window software which comprises a frame control module for controlling the pointing of a window frame according to the pointing signal.

Abstract: The present invention is related to a scanner housing structure having an internal space for installing therein a charge-coupled device (CCD), a lens, a light gate piece and a reflecting mirror, which includes a housing floor, a first positioning device integrally formed on a surface of the housing floor for positioning the CCD, and a second positioning device integrally formed on the surface of the housing floor for positioning the lens. The present scanner housing structure is devoid of the holder used in a conventional scanner for supporting the above image pick-up elements, and allows the distance between the lens and the CCD to be directly adjusted without taking the lens and the CCD out of the scanner housing.

Abstract: A monitor cursor controlling device provided with a signaling element, includes a cursor controlling unit, which is used for controlling a position of a cursor on a monitor of a computer, including an operating interface, generating an electrical signal in accordance with a manipulation motion performed by a user; a controller electrically connected to the operation interface, receiving and processing the electrical signal to generate a cursor controlling signal for controlling the movement of the cursor on the monitor; a signaling element electrically connected to the controller, and generating a perceivable signal for the user in response to an enabling signal generated by the controller, and a detecting memos electrically connected to the controller for receiving the cursor controlling signal to execute a cursor controlling operation, and having the controller to generate the enabling signal when at least one of a distance the cursor is moved on the monitor and a period of operation time of the device is g

Abstract: The present invention provides a retractable projector wherein a connector for securing together the reflector and the upper cover of the projector ensures both convenience and security of the projector. Such projector includes a casing housing therein a light source emitting a light for illuminating a projected object; a reflector mounted in said casing for reflecting said light to said object; an upper cover mounted on said casing for supporting thereon said projected object and for passing therethrough said light reflected from said reflector to said projected object; and connector for securing together said reflector and said upper cover.

Abstract: The present invention is related to an image scanning device mounted to a computer case, which includes a scanner housing having a first portion located inside the computer case and a second portion protruding through a surface of the computer case, a scanning passage essentially located in the second portion of the scanner housing for transmitting therethrough an object to be scanned, and an image sensing and processing device installed in the scanner housing for sensing an image of the object during the transmission of the object through the scanning passage and processing the sensed image. The scanning device according to the present invention is mounted to a computer case so that the extra space for resting thereon or moving therearound a sheetfed-type or a handheld-type scanner will not be needed any more. Moreover, the scanning device according to the present invention occupies relatively small space from the host computer, e.g.