Patents by Inventor A-Ming Chang

A-Ming Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10775908
    Abstract: The present invention provides a luminous scroll module applied to a mouse, including: a scroll, an inner wheel, and a luminous module. The inner wheel is arranged in a groove of the scroll, and the scroll is capable of rotating relative to the inner wheel. The luminous module is arranged in the inner wheel. A luminous unit of the luminous module is configured to emit a light beam, and the light beam passes through a light source opening of the inner wheel to the scroll.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: September 15, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Jia-Hung Lin, A-Ming Chang
  • Patent number: 10725568
    Abstract: The present invention provides a scroll module applicable to a mouse, including: a scroll and a rotating element. The rotating element is installed in a groove of the scroll, and a first rotating shaft of the rotating element has light penetrability.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: July 28, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Jia-Hung Lin, A-Ming Chang
  • Patent number: 10429951
    Abstract: A mouse device includes a mouse casing, a circuit board, a first sensing module, a second sensing module and a switching module. The circuit board is disposed within the mouse casing. Both of the first sensing module and the second sensing module are disposed on the circuit board and partially exposed outside the mouse casing. The switching module is partially exposed outside a base of the mouse casing. The first sensing module or the second sensing module is exposed outside the base under control of the switching module. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. The switching module has a simple mechanism for changing the moving resolution of the mouse device in a simple manner.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: October 1, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Shi-Jie Zhang, Chih-Feng Chien, A-Ming Chang, Ying-Che Tseng
  • Patent number: 10310635
    Abstract: A mouse device includes a mouse casing, a circuit board, a first sensing module, a second sensing module and a switching module. The circuit board is disposed within the mouse casing. The first sensing module and the second sensing module are disposed on the circuit board and partially exposed outside the mouse casing. The switching module is partially exposed outside the bottom part of the mouse casing. At least one of the first sensing module and the second sensing module is exposed outside the mouse casing through the switching module. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. When both of the first sensing module and the second sensing module are enabled, the moving resolution is further increased.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 4, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Shi-Jie Zhang, Chih-Feng Chien, A-Ming Chang, Ying-Che Tseng
  • Patent number: 10310629
    Abstract: A joystick-type mouse includes a main body and a mode detecting assembly. The main body includes a controlling module. The mode detecting assembly includes a coupling member, a posture sensor and a magnetic field sensor. A pivotal part is located at a first side of the coupling member and pivotally coupled with the main body. A magnetic part is located at a second side of the coupling member. The posture sensor and the magnetic field sensor are disposed within the main body and electrically connected with the controlling module. Consequently, the mouse can be switched to a joystick mode.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 4, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Ying-Che Tseng, Cheng-Yi Tsai, A-Ming Chang
  • Patent number: 10310633
    Abstract: A mouse device includes a casing, a top cover, an adjusting module and a pressing part. The casing is covered by the top cover. The top cover is movable relative to the casing. The top cover includes a saw-toothed plate. The saw-toothed plate is inserted into an inner portion of the casing and contacted with the adjusting module. The pressing part is connected with the adjusting module. When the pressing part is pressed to trigger the adjusting module, the saw-toothed plate is pushed by the adjusting module and the top cover is moved form a first position to a second position. Consequently, a shape of the mouse device is changed. The shape of the mouse device is changeable according to the size of the user's palm.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 4, 2019
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: A-Ming Chang, Chun-Che Wu, Cheng-Chi Hsu, Hung-Bin Wu, Yung-Ming Tsai
  • Publication number: 20180329525
    Abstract: A mouse device includes a casing, a top cover, an adjusting module and a pressing part. The casing is covered by the top cover. The top cover is movable relative to the casing. The top cover includes a saw-toothed plate. The saw-toothed plate is inserted into an inner portion of the casing and contacted with the adjusting module. The pressing part is connected with the adjusting module. When the pressing part is pressed to trigger the adjusting module, the saw-toothed plate is pushed by the adjusting module and the top cover is moved form a first position to a second position. Consequently, a shape of the mouse device is changed. The shape of the mouse device is changeable according to the size of the user's palm.
    Type: Application
    Filed: October 23, 2017
    Publication date: November 15, 2018
    Inventors: A-Ming Chang, Chun-Che Wu, Cheng-Chi Hsu, Hung-Bin Wu, Yung-Ming Tsai
  • Patent number: 10108276
    Abstract: A mouse device includes a mouse casing, a first sensing module, a second sensing module and a switching module. The mouse casing includes a casing opening. Both of the first sensing module and the second sensing module are disposed on the switching module. Moreover, a part of the first sensing module and a part of the second sensing module are selectively exposed outside the casing opening. When the first sensing module or the second sensing module exposed outside the casing opening is rotated by the user, a switching body of the switching module is correspondingly rotated relative to the mouse casing. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. The switching module has a simple mechanism for changing the moving resolution of the mouse device in a simple manner.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: October 23, 2018
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Shi-Jie Zhang, Chih-Feng Chien, A-Ming Chang, Ying-Che Tseng
  • Publication number: 20180275775
    Abstract: A mouse device includes a mouse casing, a circuit board, a first sensing module, a second sensing module and a switching module. The circuit board is disposed within the mouse casing. The first sensing module and the second sensing module are disposed on the circuit board and partially exposed outside the mouse casing. The switching module is partially exposed outside the bottom part of the mouse casing. At least one of the first sensing module and the second sensing module is exposed outside the mouse casing through the switching module. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. When both of the first sensing module and the second sensing module are enabled, the moving resolution is further increased.
    Type: Application
    Filed: July 17, 2017
    Publication date: September 27, 2018
    Inventors: SHI-JIE ZHANG, CHIH-FENG CHIEN, A-MING CHANG, YING-CHE TSENG
  • Publication number: 20180275778
    Abstract: A mouse device includes a mouse casing, a first sensing module, a second sensing module and a switching module. The mouse casing includes a casing opening. Both of the first sensing module and the second sensing module are disposed on the switching module. Moreover, a part of the first sensing module and a part of the second sensing module are selectively exposed outside the casing opening. When the first sensing module or the second sensing module exposed outside the casing opening is rotated by the user, a switching body of the switching module is correspondingly rotated relative to the mouse casing. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. The switching module has a simple mechanism for changing the moving resolution of the mouse device in a simple manner.
    Type: Application
    Filed: August 14, 2017
    Publication date: September 27, 2018
    Inventors: SHI-JIE ZHANG, CHIH-FENG CHIEN, A-MING CHANG, YING-CHE TSENG
  • Publication number: 20180275777
    Abstract: A mouse device includes a mouse casing, a circuit board, a first sensing module, a second sensing module and a switching module. The circuit board is disposed within the mouse casing. Both of the first sensing module and the second sensing module are disposed on the circuit board and partially exposed outside the mouse casing. The switching module is partially exposed outside a base of the mouse casing. The first sensing module or the second sensing module is exposed outside the base under control of the switching module. Consequently, a moving resolution of the mouse device is adjustable according to the practical requirements. The switching module has a simple mechanism for changing the moving resolution of the mouse device in a simple manner.
    Type: Application
    Filed: August 14, 2017
    Publication date: September 27, 2018
    Inventors: SHI-JIE ZHANG, CHIH-FENG CHIEN, A-MING CHANG, YING-CHE TSENG
  • Publication number: 20180269009
    Abstract: A slide switch includes a circuit board assembly, a sensing element and a slider member. The circuit board assembly has an opening. The sensing element is installed on the circuit board assembly and electrically connected with the circuit board assembly. The slider member is movably connected with the circuit board assembly. The slider member is movable along the circuit board assembly. The slider member includes a slider plate and a supporting post. The supporting post is protruded from the slider plate. The slider plate includes a pressing part for pressing the sensing element. The supporting post is movable to a position within the opening. Consequently, the layout space of the slide switch is saved.
    Type: Application
    Filed: July 20, 2017
    Publication date: September 20, 2018
    Inventors: CHENG -YI TSAI, YING-CHE TSENG, A-MING CHANG
  • Publication number: 20180253156
    Abstract: A joystick-type mouse includes a main body and a mode detecting assembly. The main body includes a controlling module. The mode detecting assembly includes a coupling member, a posture sensor and a magnetic field sensor. A pivotal part is located at a first side of the coupling member and pivotally coupled with the main body. A magnetic part is located at a second side of the coupling member. The posture sensor and the magnetic field sensor are disposed within the main body and electrically connected with the controlling module. Consequently, the mouse can be switched to a joystick mode.
    Type: Application
    Filed: July 17, 2017
    Publication date: September 6, 2018
    Inventors: YING-CHE TSENG, CHENG -YI TSAI, A-MING CHANG
  • Patent number: 9836138
    Abstract: A touch pen includes a main body, a connector, a first conductive pen tip, a second conductive pen tip and a switching module. The connector is disposed within the main body, and located at a first end of the main body. The first conductive pen tip and the second conductive pen tip are detachably coupled with the connector. According to a result of judging whether the connector is coupled with the first conductive pen tip or the second conductive pen tip, the switching module controls the operation mode of the touch pen. When the first conductive pen tip is coupled with the connector, the touch pen is in an active operation mode under control of the switching module. When the second conductive pen tip is coupled with the connector, the touch pen is in a passive operation mode under control of the switching module.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 5, 2017
    Assignee: Primax Electronics Ltd.
    Inventors: Tung-Heng Wu, Ying-Che Tseng, A-Ming Chang
  • Publication number: 20170318282
    Abstract: An input device with a projecting function is provided, including: a first input device and a second input device. The first input device has a first projection unit, and the second input device has a second projection unit. The first projection unit and the second projection unit are configured to execute 2D projection or 3D projection. When a projection direction of the first projection unit is the same as that of the second projection unit, the first projection unit and the second projection unit execute the 2D projection. When the projection direction of the first projection unit is perpendicular to that of the second projection unit, the first projection unit and the second projection unit execute the 3D projection. The present disclosure provides a relatively sharp 2D projected image and a function of simplifying a structure of an input device.
    Type: Application
    Filed: July 20, 2016
    Publication date: November 2, 2017
    Inventors: A-Ming Chang, Ying-Che Tseng, Cheng-Yi Tsai
  • Publication number: 20170269719
    Abstract: The present invention discloses a pressure sensitive stylus pen, including a housing, a substrate, an accommodation slot, a fastening base, and a pressure sensor. The substrate is disposed inside the housing, and the accommodation slot is disposed in the substrate. The fastening base is disposed in the accommodation slot, and the pressure sensor is disposed in the fastening base. The pressure sensor bears an external force and generates a sensing signal, and the pressure sensor is fastened in the fastening base; therefore, the pressure sensor can be firmly disposed inside the housing and does not fall off.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 21, 2017
    Inventors: CHENG-YI TSAI, YING-CHE TSENG, A-MING CHANG
  • Publication number: 20170228051
    Abstract: A touch pen includes a main body, a connector, a first conductive pen tip, a second conductive pen tip and a switching module. The connector is disposed within the main body, and located at a first end of the main body. The first conductive pen tip and the second conductive pen tip are detachably coupled with the connector. According to a result of judging whether the connector is coupled with the first conductive pen tip or the second conductive pen tip, the switching module controls the operation mode of the touch pen. When the first conductive pen tip is coupled with the connector, the touch pen is in an active operation mode under control of the switching module. When the second conductive pen tip is coupled with the connector, the touch pen is in a passive operation mode under control of the switching module.
    Type: Application
    Filed: March 22, 2016
    Publication date: August 10, 2017
    Inventors: TUNG-HENG WU, YING-CHE TSENG, A-MING CHANG
  • Publication number: 20160018911
    Abstract: A touch pen controls a capacitive touch screen and an electronic device. The electronic device includes a first wireless transmission module. The touch pen includes a pen tip, a second wireless transmission module, a G-sensor, and a pressure sensor. The pen tip is interacted with the capacitive touch screen. The second wireless transmission module is in communication with the first wireless transmission module. According to an angle change of the touch pen sensed by the G-sensor, a first control signal is transmitted from the second wireless transmission module to the first wireless transmission module to control the electronic device. According to a pressure exerted on the pen tip and sensed by the pressure sensor, a second control signal is transmitted from the second wireless transmission module to the first wireless transmission module or the capacitive touch screen to control the first wireless transmission module or the capacitive touch screen.
    Type: Application
    Filed: September 11, 2014
    Publication date: January 21, 2016
    Inventors: SHIH-CHIEH LAN, YING-CHE TSENG, A-MING CHANG
  • Publication number: 20150286310
    Abstract: A passive touch pen for a capacitive touch screen is provided. The passive touch pen includes a first pen tube, a second pen tube, a fixing post, a conductive pen tip, a circuit board, and a conductive element. The first pen tube is made of a conductive material. The second pen tube is made of a nonconductive material. The conductive element is connected with a negative trace of the circuit board and contacted with the first pen tube. Consequently, the electric energy of the human body is transmitted to the conductive pen tip through the conductive element. Moreover, a negative electrode part is electrically connected with the negative trace of the circuit board through the first pen tube and the conductive element. Consequently, the complexity of the fabricating process and the fabricating cost are reduced.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 8, 2015
    Inventors: A-MING CHANG, Chien-Pang Chien, Ying-Che Tseng
  • Publication number: 20150286311
    Abstract: A passive touch pen for a capacitive touch screen is provided. The passive touch pen includes a first pen tube, a second pen tube, a conductive rubber tip, a switch member, a circuit board, a positive electrode part, a conductive plate, and a battery. The switch member includes a rotary element, a first conductive element, a second conductive element, and a negative electrode part. While the second conductive element is correspondingly rotated with the rotary element to be contacted with the negative electrode part, a conductive loop is defined by a negative trace, the conductive plate, the first pen tube, the first conductive element, the second conductive element, the negative electrode part, the battery, the positive electrode part and a positive trace collaboratively. Through the switch member, the function of providing electric power of a battery can be easily achieved. Consequently, the power-saving efficacy is enhanced.
    Type: Application
    Filed: July 18, 2014
    Publication date: October 8, 2015
    Applicant: Primax Electronics Ltd.
    Inventors: A-Ming Chang, Ying-Che Tseng