Patents Assigned to Primax Electronics Ltd.
  • ILLUMINATED KEYBOARD
    Publication number: 20140168087
    Abstract: An illuminated keyboard includes a key structure, a sensor board, a light source, a light guide plate, an adhesive layer, and a bottom plate. The sensor board includes a key wiring region for sensing a depressing action of the key structure and thereby generates a key signal. The light source is used for emitting a light beam to the light guide plate. The sensor board is made of a light-transmissible material. The sensor board is disposed over the light guide plate. At least one edge region of the sensor board is coated with a light-shading material or mixed with a light-shading material. Moreover, the at least one edge region of the sensor board is bent to enclose at least one edge of the light guide plate in order to prevent lateral light leakage of the illuminated keyboard.
    Type: Application
    Filed: July 25, 2013
    Publication date: June 19, 2014
    Applicant: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • Optical touch panel and optical touch device
    Patent number: 8735799
    Abstract: The present invention discloses an optical touch panel including a support plate, a light emitting element, an optical fiber, an optical sensing element and a control unit. The optical fiber is arranged on the support plate in a bending manner. A light beam generated by the light emitting element is transmitted through the optical fiber and received by the optical sensing element. When the optical fiber is touched by an object, an optical return is generated within the optical fiber and received by the optical sensing element. As a result, the control unit obtains a contact location where the object located according to the receiving time of the light beam, the receiving time of the optical return and the conduction velocity of the light beam.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: May 27, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • USB application device and method for assembling USB application device
    Patent number: 8734182
    Abstract: The present invention discloses a USB application device including a body, a circuit board, a pins plate and a plurality of first electrical pins. The plurality of first electrical pins are enclosed previously by the pins plate, and a first end of each one of the plurality of first electrical pins is connected on the circuit board, so that the plurality of first electrical pins pass over a first surface of the circuit board and thus extend in suspension. The circuit board is disposed within the body and the pins plate is combined with the body, so that the plurality of first electrical pins are partly exposed by the body. The present invention also discloses a method for assembling a USB application device, which is capable of simplifying the process of disposing the plurality of first electrical pins on the circuit board.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 27, 2014
    Assignee: Primax Electronics Ltd.
    Inventors: Chun-Ching Peng, Chun-Nan Su
  • Method for judging whether lens and sensing element of image pickup device are parallel
    Patent number: 8736686
    Abstract: An optical analysis method is provided for judging whether a lens and a sensing element of an image pickup device are parallel with each other. The method utilizes a tested image pickup device and a standard image pickup device to shoot an object at the same fixed shooting position to acquire a standard image frame and a tested image frame. According to the difference between the position coordinate value or the area of at least one mark of the standard image frame and the tested image frame, the method can judge whether the tested lens and the tested sensing element of the tested image pickup device are parallel with each other.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 27, 2014
    Assignee: Primax Electronics Ltd.
    Inventors: Szu-Hao Lyu, Chien-Nan Yu
  • Automatic document feeding scanning device
    Patent number: 8736928
    Abstract: The present invention discloses a sheet feed scanner including an auto document feeder, a flatbed scanner and a power-switching mechanism. The power-switching mechanism includes a first shaft, a power source, a clutch, a first gear, a second gear, and an elastic limitation structure. The clutch includes a first incline and a second incline. The elastic limitation structure pushes the first incline or the second incline of the clutch. When the first shaft is rotated in a first direction, the first incline is pushed by the elastic limitation structure so that the clutch is coupled to the first gear for driving the automatic document feeder. When the first shaft is rotated in a second direction, the second incline is pushed by the elastic limitation structure so that the clutch is coupled to the second gear for driving the flatbed scanner.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: May 27, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Shang-Hsien Tsai
  • ILLUMINATED KEYBOARD
    Publication number: 20140139441
    Abstract: An illuminated keyboard includes a key, a light guide plate, a sensing circuit layer, and a light-transmissible elastic element. The light-transmissible elastic element is disposed under the key. The light-transmissible elastic element has a light-diffusing part. The light guide plate and the sensing circuit layer are disposed under the light-transmissible elastic element. The sensing circuit layer is used for generating a non-contact key signal. After the light beam transferred within the light guide plate is transmitted upwardly through the light guide plate, the light beam is transmitted through the light-transmissible elastic element. Moreover, since the optical path of the light beam is changed by the light-diffusing part, the light beam can be projected onto the whole keycap more uniformly.
    Type: Application
    Filed: April 22, 2013
    Publication date: May 22, 2014
    Applicant: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • Automatic document feeding scanning device
    Patent number: 8730531
    Abstract: An automatic document feeding scanning device including an automatic document feeder, a flatbed scanner and a power switching mechanism is provided. The automatic document feeder has a pickup arm and a feeding gear, the flatbed scanner has a scanning module and a scanning gear. When the scanning module is moved and the movement of the scanning module is obstructed to enable the scanning module to take a first reacting force, the power switching mechanism is disengaged from the scanning gear in response to the first reacting force and transfers a driving power to the automatic document feeder. When the pickup arm is swung and the swing of the pickup arm is obstructed to enable the pickup arm to take a second reacting force, the power switching mechanism is disengaged from the feeding gear in response to the second reacting force and transfers the driving power to the flatbed scanner.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 20, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chun-Yu Lee
  • Duplex scanning apparatus
    Patent number: 8730541
    Abstract: A duplex scanning apparatus includes a flatbed scanning portion and an automatic document feeder. The flatbed scanning portion has a first scanning module. The automatic document feeder has a second scanning module. The first scanning module has a first normal line perpendicular to a horizontal plane. The second scanning module is disposed in an inclined channel, and has a second normal line. In addition, an included angle is defined between the first normal line and the second normal line. Since the second scanning module is not directly disposed over the first scanning module, the height of the duplex scanning apparatus is reduced.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 20, 2014
    Assignee: Primax Electronics Ltd.
    Inventors: Tung-Wen Tu, Yan-Hua Li
  • Automatic document feeding scanning device
    Patent number: 8730532
    Abstract: The present invention discloses an automatic document feeding scanning device including an automatic document feeder, a flatbed scanner and a power switching mechanism. The automatic document feeder has a pickup arm and a feeding gear, the flatbed scanner has a scanning module and a scanning gear, and the power switching mechanism has two driving elements and a planet gear module. When the two driving elements rotate in the same rotating direction, the planet gear module is swung to a position near the scanning gear and engaged with the scanning gear such that the power switching mechanism transfers a driving power to the automatic document feeder. When the two driving elements rotate in different rotating directions, the planet gear module is swung to a position near the feeding gear and engaged with the feeding gear such that the power switching mechanism transfers a driving power to the flatbed scanner.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 20, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chun-Yu Lee
  • Scanning apparatus with a sheet size delecting mechanism
    Patent number: 8730536
    Abstract: A scanning apparatus includes a scanning module and a sheet size detecting mechanism. The scanning module is used for acquiring an image of a paper sheet. The sheet size detecting mechanism includes a first sheet guide part, a second sheet guide part, and a controlling unit. The first sheet guide part and the second sheet guide part are contacted with two parallel edges of the paper sheet, respectively. A light-emitting unit is disposed on the second sheet guide part. The light-emitting unit is used for projecting a light beam onto an optical sensing element of the scanning module. According to the light beam, the optical sensing element generates a sensing signal. According to the sensing signal, a distance between the two parallel edges of the paper sheet is acquired.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 20, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Shang-Hsien Tsai
  • Input device with multiple layers of luminous patterns
    Patent number: 8714801
    Abstract: An input device with multiple layers of luminous patterns is provided. The input device includes an input interface, a first light-emitting element, a second light-emitting element, and a light guide plate. The light guide plate includes an upper light-guiding layer, a lower light-guiding layer, and a gap. The upper light-guiding layer and the lower light-guiding layer are separated from each other by the gap. The light guide plate has multiple layers of luminous patterns, which are selectively visible. Consequently, the overall thickness of the input device is reduced.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • Input device for tablet computer
    Patent number: 8717319
    Abstract: An input device for a tablet computer is provided. The input device includes a base and a touch switch member. The touch switch member includes a touch element and a power switch. The touch element is pivotally coupled with the base and exposed to a top surface of the base. When the tablet computer is placed on the base, the touch element is moved from an initial position to a triggered position through the tablet computer. Consequently, the power switch is pressed down and turned on.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chun-Che Wu
  • Mouse with detachable cover
    Patent number: 8717296
    Abstract: A mouse includes a main body, an engaging device, and a detachable cover. The main body has a top surface and an insertion slot. The insertion slot is recessed from the top surface of the main body. The cover is used for detachably covering the top surface of the main body. The cover has an extension arm. After the top surface of the main body is covered by the cover, the extension arm is inserted into the insertion slot and engaged with the engaging device, so that the cover is securely fixed on the main body to cover the main body.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chun-Che Wu
  • Display device and input device with multi pattern layers
    Patent number: 8714802
    Abstract: The present invention discloses an input device with multi pattern layers including an input interface, a first light emitting element for generating a first light beam, a first light guiding plate, a second light emitting element for generating a second light beam, a second light guiding plate, a first circuit board and a second circuit board. The input interface is stacked on the first light guiding plate, and the first light guiding plate is stacked on the second light guiding plate, such that a first space and a second are formed individually at the two ends of the first light guiding plate and the second light guiding plate. The first circuit board and the second circuit board block the first light beam and the second light beam individually by inserting into the first space and the second space individually.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • Mouse with multi-configurable buttons
    Patent number: 8717297
    Abstract: A mouse with multi-configurable buttons is provided. The mouse with multi-configurable buttons comprises a housing, a cylinder module and a signal processing device. The housing has an opening, and the cylinder module is received in the housing and partially exposed through the opening. The cylinder module at least comprises a first click portion and the second click portion, and the signal processing device at least comprises a first switch and a second switch. When the first click portion is exposed through the opening, the first click portion is used for activating the first switch. In contrast, when the second portion is exposed through the opening, the second click portion is used for activating the first and the second switch. Therefore, the mouse with multi-configurable buttons provides at least two configuration status via rotating the rotating cylinder to satisfy different user demands.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chun-Che Wu
  • Paper inverting device
    Patent number: 8714545
    Abstract: A paper inverting device includes a first sensor, a second sensor, a guiding structure, a power mechanism, and a controller. The power mechanism is used for driving rotation of the guiding structure. The first sensor is used for detecting the position of the paper. The second sensor is used for detecting the thickness of the paper. According to the sensing signals from the first sensor and the second sensor, the controller may determine the timing of rotating the guiding structure and the rotating direction and the rotating angle of the guiding structure. Consequently, the guiding structure may be controlled to stop the paper and further invert the paper.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventors: Wen-An Huang, Chao-Min Yang
  • Mouse motion trajectory testing system
    Patent number: 8719640
    Abstract: A mouse motion trajectory testing system includes a testing fixture and an electronic calculator connected to the testing fixture. The testing fixture includes a testing base, a rotatable member under the testing base, and a controlling unit. The testing base is used for fixing the tested mouse thereon. The controlling unit is used for driving the rotatable member to be rotated for a preset number of revolutions at a preset speed, so that the tested mouse generates a motion signal. The electronic calculator has testing program for receiving the motion signal from the tested mouse, thereby judging whether the tested mouse is qualified or not.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 6, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Pei-Ming Chang
  • KEYBOARD DEVICE FOR SMALL SIZE TABLET PERSONAL COMPUTER
    Publication number: 20140098026
    Abstract: A keyboard device for a small size tablet personal computer is provided. The keyboard device includes a first casing, a connecting plate, and a second casing. The first casing includes a first keyboard plate and a first recess. The second casing includes a second keyboard plate and a second recess. The connecting plate is connected with the first casing and the second casing. Consequently, the second casing is rotatable relative to the first casing. The first keyboard plate and the second keyboard plate are collectively defined as a whole keyboard to be operated by both hands of the user. Moreover, the small size tablet personal computer is accommodated within the first recess and the second recess collaboratively.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 10, 2014
    Applicant: Primax Electronics Ltd.
    Inventor: Chih-Hung Lin
  • Illuminated keyboard with light guide tube
    Patent number: 8692147
    Abstract: An illuminated keyboard includes plural keys, a base plate, an illumination module, plural light guide tubes, and at least one optical coupling element. The illumination module is used for emitting plural light beams. The plural light guide tubes are arranged between the plural keys and the base plate for guiding the light beams to the plural keys. The optical coupling element is arranged between the illumination module and the plural light guide tubes for guiding the light beams to the plural light guide tubes. In such way, the illuminated keyboard can be illuminated.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 8, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chung-Yuan Chen
  • Keyboard
    Patent number: 8692145
    Abstract: A keyboard includes a membrane circuit board, a luminous key, a light-emitting element and a plastic film layer. The luminous key has a keycap with a light-transmissible part. The luminous key is configured for triggering a membrane switch of the membrane circuit board. The light-emitting element is disposed on the membrane circuit board and arranged under the membrane circuit board for emitting a light beam. The plastic film layer is disposed on the membrane circuit board, and includes a convex structure, which is integrally formed with the plastic film layer. The light-emitting element is enclosed by the convex structure. The convex structure has a light-transmissible zone aligned with the light-emitting element. In such way, the keyboard of the present invention has enhanced production yield and reduced leak leakage.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: April 8, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Bo-An Chen