Patents Assigned to Primax Electronics
  • Patent number: 6023370
    Abstract: The present invention provides a light polarizing device comprising a light separating module and a retarder for converting an input trichrome unpolarized light having red, green and blue lights. The light separating module comprises a polarization beam splitter film and a dichroic film for separating the input trichrome unpolarized light into two trichrome polarized lights with different polarizations, each color light within the first trichrome polarized light and the second trichrome polarized light having a unique polarization. The retarder retards the first trichrome polarized light or the second trichrome polarized light so as to generate an output of trichrome polarized light with different polarizations. Furthermore, the light separating module is a stackable module that can be vertically stacked with other modules to form a light separating panel.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: February 8, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Shang-Yi Lin
  • Patent number: 6021212
    Abstract: The present invention provides an electronic key device which can combine a fingerprint with an input ID code to generate a key signal to initiate a computer system. The key device comprises a fingerprint input module for inputting a user's fingerprint to generate a fingerprint image signal, and a fingerprint encoder having a memory for storing the fingerprint image signal, an input ID code and a fingerprint encoding program, and a processor for executing the fingerprint encoding program. The fingerprint encoding program is used for converting the fingerprint image signal according its characteristics into a digital fingerprint code, and encoding the fingerprint code and the input ID code according to a key encoding procedure to generate the key signal.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: February 1, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Heng-Chun Ho
  • Patent number: 6020888
    Abstract: The present invention provides a display control system having a window interface for organizing program and directory icons.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: February 1, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Heng-Chun Ho
  • Patent number: 6014130
    Abstract: A mouse encoding device that includes an operating interface for the user to operate on and a sensing device for sensing user input through the operating interface in order to modulate light pulses and generate encoded electrical signals. Through the rotation of a wheel in the mouse device, a mechanically linked photo-grid wheel is driven to generate a series of encoded signals. Furthermore, the wheel can move slightly in the vertical direction so that an activating switch can be turned on or off to produce yet another signal. Therefore, the movement of a mouse by a user is fully tracked.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: January 11, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Chung Yung-Chou
  • Patent number: 6011632
    Abstract: The present invention includes a casing for forming an upper housing of the desktop scanning device, a rectangular transparent plate for been placed thereon an object to be scanned, and a calibration strip on which light source from the desktop scanning device is projected as a calibration parameter. The calibration strip is mounted on the rectangular transparent plate so that either the upper housing or the surface of the transparent plate will not be damaged if the calibration strip has to replaced during the assembly of the scanning device. Furthermore, a darkened image generated by a gap existing between a background plate of an upper cover of the scanning device and the transparent plate can be prevented during scanning process.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: January 4, 2000
    Assignee: Primax Electronics Ltd.
    Inventor: Te-Ming Chiang
  • Patent number: 6008485
    Abstract: An image capturing device having de-friction function is disclosed. The present invention comprises a substantially rectangular transparent platform, an image sensing module which includes a sensor means and an accomodation base, and a supporting member. A plurality of spherical elements are provided on a first surface of the accomodation base while a "point contact" relation is retained between the spherical elements and the transparent platform in order to reduce the frictional resistance when moving the image sensing module.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: December 28, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Te-Ming Chiang
  • Patent number: 5999391
    Abstract: An outage device and a surge-protection that uses the outage device, wherein the outage device is formed by connecting an overcurrent protection and an overheat protection in series, and packaged as a single device. As soon as either the current flowing through the overcurrent protection is too high or the temperature detected by the overheat protection is to high, the outage device forms a open circuit immediately to ensure that no currents are fed into the circuit. The surge protection is formed by connecting the foregoing outage device and a surge-absorbing device in series. The outage device and the surge-absorbing device have to be placed as close as possible, so that the outage device can open the circuit immediately as the temperature of the surge-absorbing device is to high to ensure that no currents are fed into the surge-absorbing device.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: December 7, 1999
    Assignee: Primax Electronics Ltd.
    Inventors: Chin-Kuan Lou, Sen-Hsiang Liu
  • Patent number: 5999798
    Abstract: A computer peripheral input device includes a signal receiver for wirelessly receiving an input remote signal for a computer, a signal transmitter for wirelessly transmitting an output remote signal from the computer, a signal processing circuit electrically connected to the signal receiver and the signal transmitter for providing the computer with a signal in response to the input remote signal received by the signal receiver and providing the output remote signal for the signal transmitter in response to a signal generated from the computer, and a peripheral input circuit electrically connected to the computer for providing a computer peripheral input signal for the computer.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 7, 1999
    Assignee: Primax Electronics, Inc.
    Inventor: Danny Yang
  • Patent number: 5995684
    Abstract: The present invention relates to a housing of a flatbed scanner which uses a plurality of clasps to fix its transparent planar board. The housing comprises a rectangular transparent planar board for placing documents to be scanned and a rectangular case for placing a scanning module. The transparent planar board comprises front, rear, left and right ends, and the rectangular case comprises a rectangular opening installed on its top side for mounting the transparent planar board. A plurality of long-clasps and short-clasps are installed below the front and rear sides for mounting the front and rear ends of the transparent planar board respectively. The left side of the opening comprises two corner-clasps and the right side of the opening comprises a positioning device for mounting the left and right ends of the transparent planar board respectively and fixing the four ends of the transparent glass to the opening of the case.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: November 30, 1999
    Assignee: Primax Electronics Ltd.
    Inventors: Lim Wei Beng, Chen Pi-Chen, Kuo Chien Lung
  • Patent number: 5995034
    Abstract: The present invention discloses a computer joystick having a removable joystick handle so that users can select a favorite joystick handle when using the computer joystick. The computer joystick comprises a chassis, a joystick mechanism having two shafts and a control handle rotatably installed in the opening of the chassis for interacting with the two shafts, two sensors installed in the chassis for detecting rotations of the two shafts separately and generating corresponding rotation signals, a joystick handle having a locking means installed on its bottom end for removably mounting the joystick handle to the top end of the control handle, and a control circuit wired to the two sensors for receiving rotation signals generated by the two sensors. The joystick handle further comprises at least one control button and an electrical wire having a first end connected to the button and a second end connected with an electric plug.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: November 30, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Shu-Ming Liu
  • Patent number: 5984784
    Abstract: A game apparatus with fast-access keys that can help the player to gain instant access to selected games is provided. The provision of the fast-access keys allows more friendliness and popularity to the game apparatus. The game apparatus includes a storage unit containing a plurality of game programs; a triggering device associated with a number of fast-access keys; and a control device coupled between the triggering device and the storage unit. Each key and key combination of the fast-access keys on the triggering device corresponds to a certain one of the game programs stored in the storage unit. The pressing of each key and key combination can cause the generation of a corresponding trigger signal which is transferred to the control device. In response to the trigger signal, the control device generates and transfers a start signal to the storage unit so as to retrieve a corresponding game program from the storage unit.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: November 16, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Heng-Chun Ho
  • Patent number: 5974204
    Abstract: A pen type scanner (10) having an optically conductive light director (24) for directing light from a light emitting diode (20) onto a specific portion of textual data (78) on a page (76). Light reflected from the page is focused by a lens assembly (28) onto a sensor apparatus (30). As the pen type scanner (10) is moved across the page (76) a roller (34) activates a distance encoder (32). The pen type scanner (10) is connected to a parallel port (54) of a computer (56) through an interconnection cable (50) and a port adaptor component (58).
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: October 26, 1999
    Assignee: Primax Electronics Ltd.
    Inventors: Shih-Chieh Lin, Chien-Suan Chen
  • Patent number: 5971808
    Abstract: A double-sided multi-socket adapter panel whose plugging sockets alternate between two opposite sides of the adapter panel such that some of the sockets are separated further apart so that even large-size plug of a transformer adapter can be accommodated without affecting the availability of neighboring plugging sockets. The electrode-plugging slots are aligned along a straight line parallel to the general layout direction of the plugging sockets, and therefore suitable for plugging vertical plugging head. Furthermore, each plugging socket has a protective cover capable of sliding so that whenever a plugging socket is unused, the plugging slots of the socket can be shut to prevent dust from entering or any accidental touching by somebody. The conductive electrode structures are designed such that the optimal number of plugging sockets and distance of separation between two sockets are obtained.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: October 26, 1999
    Assignee: Primax Electronics Ltd.
    Inventors: Yi-Te Chiang, Hui-Jen Pan
  • Patent number: 5969245
    Abstract: A scanner casing includes a rectangular frame for supporting a transparent platform on which a document to be scanned is placed, and a housing for optical, electronic, and mechanical devices of the scanner. The frame is secured to the housing, without the need for screws, by engagement between respective positioning elements at one end of the frame and housing, and by engagement between respective hook-shaped elements and slots at the other end of the frame and housing.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: October 19, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Te-Ming Chiang
  • Patent number: 5959614
    Abstract: The present invention discloses a pointing control system for controlling rotations of an object within a three dimensional view. The three dimensional view comprises first axis and second axes which are perpendicular to each other. The pointing control system comprises an image displaying device for displaying the three dimensional view, a computer electrically connected to the displaying device and a pointing device electrically connected to the computer. The computer comprises a program for controlling image display of the displaying device and rotations of the object within the three dimensional view. The pointing device comprises a housing and a first pointing controller installed in the housing.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 28, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Heng-Chun Ho
  • Patent number: 5939713
    Abstract: The present invention discloses an optical sensing system which utilizes two sensors to detect positioning holes or an identification hole of a grid panel. The optical sensing system comprises a wheeled shaped grid panel, a sensing device and a control circuit. The panel has a grid array installed in it, and the grid array comprises a plurality of positioning holes and an identification hole. The sensing device is used for detecting movements of the grid array in left and right directions. The sensing device comprises a light source located at one side of the panel for emitting light, and two sensors located at another side of the panel for detecting the light emitted from the light source through any hole of the grid array and generating corresponding sensing signals. The control circuit is connected to the two sensors for converting the sensing signals generated by the two sensors into corresponding position signals or displacement signals.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: August 17, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Shu-Ming Liu
  • Patent number: 5938740
    Abstract: A peripheral control device of a computer system having programmable keys for recording frequently used procedures is disclosed. The computer system comprises a computer, a peripheral device connected to the computer, a peripheral control program for controlling the peripheral device, and a peripheral control device for controlling the peripherals of the computer. The peripheral control device comprises control keys for generating peripheral control signals, at least one programmable key for generating an execution signal, and a display device for displaying a message signal. The system further comprises a signal distribution program for transmitting the peripheral control signals to the peripheral control program and transmitting the message signal generated from the peripheral control program to the display device, a script file generation program for generating a script file for a programmable key, and a script file execution program for executing the designated script file.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 17, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Ming-Chih Chang
  • Patent number: 5928337
    Abstract: An image processing system having programmable keys for recording frequently used procedures is disclosed. The scanner comprises a scanning module for scanning an document, a plurality of programmable keys for recording frequently used procedures and a program key. The computer comprises a script file generation program for generating a script file of the programmable key. The script file is generated by using the following steps: (1) press the program key to generate a script file, (2) press a programmable key to relate the script file to the programmable key, (3) generate a plurality of control signals sequentially through various control keys of the scanner, (4) store the control signals in the script file, and (5) press the program key to complete the script file.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: July 27, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Fred Wieringa
  • Patent number: 5917473
    Abstract: An encoder module for use in a three-dimensional cursor control device adapted for encoding process is disclosed. The encoder module of the present invention comprises a positioning base having a pair of corresponding positioning members, a signal generating device mounted between the pair of corresponding positioning members for generating encoding signals, the signal generating device includes a rotating member having a central portion and having an electrical contact on its surface, an axis reeving through the central portion of the rotating member for positioning the rotating member between the pair of corresponding positioning members, and a plate connected with the axis and having a plurality of electrical brushes on its surface. Wherein the electrical contact is intermittently engaged with the electrical brushes by rotating the rotating member.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 29, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Hsin-Chyh Yeh
  • Patent number: 5914703
    Abstract: A cursor control device electrically connected to a computer is used for controlling movements of an object within a three-dimensional image displayed over a screen of the computer. The computer comprises a computer program for controlling display of the three-dimensional image over the screen and for moving the object within the three-dimensional image. The three-dimensional image comprises a first, a second and a third coordinates mutually perpendicular to each other. The cursor control device comprises a housing having a first panel and a second panel perpendicular to each other, a first cursor controller installed on the first panel for generating a first two-dimensional signal, and a second cursor controller installed on the second panel for generating a second two-dimensional signal.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: June 22, 1999
    Assignee: Primax Electronics. Ltd.
    Inventor: Ho Herng-Chuen