Patents by Inventor Jung-Wen Chang

Jung-Wen 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).

  • Portable device
    Patent number: 9066175
    Abstract: A portable device includes a display module and a keyboard module. The display module includes a display casing, at least one speaker and at least one sound output opening. The speaker is accommodated in the display casing for outputting sounds. The sound output opening is used for transmitting the sounds from the speaker. The keyboard module includes a keyboard casing and a plurality of keys. The keyboard casing includes a sound guide chamber therein and at least one sound input opening for receiving the sounds from the sound output opening. The sound input opening is spatially communicated with the sound guide chamber. The keys are disposed on the keyboard casing. Two adjacent keys define a gap therebetween, and this gap is spatially communicated with the sound guide chamber.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: June 23, 2015
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun-Sen Chang, Tai-Jung Sung, Jung-Wen Chang
  • Portable electrical device
    Patent number: 9063698
    Abstract: A portable electrical device includes a tablet computer, a base panel, two supporting arms and two connecting members. Two ends of each supporting arm are pivotally disposed at one lateral side of the tablet computer and one lateral side of the base panel. The base panel has two guiding grooves oppositely arranged on one surface thereof. One end of the connecting member is pivoted with the lateral side of the tablet computer, and the other end of the connecting member is limited and slidably disposed in one of the guiding grooves. When the other ends of both the connecting members are at one distal end of the guiding groove, the tablet computer is stacked on the base panel, and a touch-controlled display of the tablet computer can alternatively face towards or opposite to the base panel.
    Type: Grant
    Filed: March 17, 2013
    Date of Patent: June 23, 2015
    Assignee: QUANTA COMPUTER INC.
    Inventors: Jung-Wen Chang, Cheng-Pu Chu, Huai-Wu Wen
  • Method and electronic device for virtual keyboard with haptic/tactile feedback
    Patent number: 9030424
    Abstract: A method for a virtual keyboard is provided. A touch panel is controlled to detect multiple finger touch points. In response to the finger touch points, a display panel is controlled to display the virtual keyboard, wherein shape and size of the virtual keyboard are determined according to at least coordinates and touch areas of the finger touch points. A haptic/tactile actuator is controlled to generate haptic/tactile feedback to express a border around each key of the virtual keyboard. The haptic/tactile actuator is controlled to generate haptic/tactile feedback in response to a press upon a key of the virtual keyboard.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: May 12, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Yu-Liang Shih, Jung-Wen Chang, Te-Chun Lee
  • Portable electronic device
    Patent number: 9030813
    Abstract: A portable electronic device includes a tablet PC, a base panel and two supports. Two opposite ends of each support are respectively pivoted to the tablet PC and the base panel through a first pivotal portion and a second pivotal portion. The second pivotal portion includes a shaft rod fastened on one end of the support, a retractable spring, a fixed cam fastened on the base panel, and a rotary cam. The retractable spring, the fixed cam and the rotary cam are sleeved on the shaft rod. The fixed cam includes three first peaks, and a first cave is formed between any two of the first peaks. The rotary cam is rotated along the supports, abutted against the fixed cam and the retractable spring. The rotary cam includes three second peaks, and a second cave is formed between any two of the second peaks.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 12, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Chun-Sen Chang, Chuan-Yu Hsu, Jung-Wen Chang
  • Optical touch device and keyboard thereof
    Patent number: 8803809
    Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 12, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Chien-Ta Lin, Wen-Ji Tsai, Jung-Wen Chang, Chee-Chun Leung
  • Portable Electronic Device
    Publication number: 20140192471
    Abstract: A portable electronic device includes a tablet PC, a base panel and two supports. Two opposite ends of each support are respectively pivoted to the tablet PC and the base panel through a first pivotal portion and a second pivotal portion. The second pivotal portion includes a shaft rod fastened on one end of the support, a retractable spring, a fixed cam fastened on the base panel, and a rotary cam. The retractable spring, the fixed cam and the rotary cam are sleeved on the shaft rod. The fixed cam includes three first peaks, and a first cave is formed between any two of the first peaks. The rotary cam is rotated along the supports, abutted against the fixed cam and the retractable spring. The rotary cam includes three second peaks, and a second cave is formed between any two of the second peaks.
    Type: Application
    Filed: July 12, 2013
    Publication date: July 10, 2014
    Inventors: Chun-Sen Chang, Chuan-Yu Hsu, Jung-Wen Chang
  • PORTABLE DEVICE
    Publication number: 20140192469
    Abstract: A portable device includes a display module and a keyboard module. The display module includes a display casing, at least one speaker and at least one sound output opening. The speaker is accommodated in the display casing for outputting sounds. The sound output opening is used for transmitting the sounds from the speaker. The keyboard module includes a keyboard casing and a plurality of keys. The keyboard casing includes a sound guide chamber therein and at least one sound input opening for receiving the sounds from the sound output opening. The sound input opening is spatially communicated with the sound guide chamber. The keys are disposed on the keyboard casing. Two adjacent keys define a gap therebetween, and this gap is spatially communicated with the sound guide chamber.
    Type: Application
    Filed: April 22, 2013
    Publication date: July 10, 2014
    Applicant: Quanta Computer Inc.
    Inventors: Chun-Sen CHANG, Tai-Jung Sung, Jung-Wen Chang
  • Method and electronic device for tactile feedback
    Patent number: 8723881
    Abstract: A method and an electronic device for tactile feedback are provided. An original image is input and converted to a binary image which includes a first grayscale value and a second grayscale value. The original image is converted to a grayscale image at least including a third grayscale value between the first grayscale value and the second grayscale value. An index map is generated according to the binary image and the grayscale image. The index map includes a plurality of index values indicative of different strengths for tactile feedback. A touch input on a touch panel is detected when the original image is displayed on a display panel. In response to the detected touch input, a tactile activation unit is driven to generate tactile feedback according to the index map.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: May 13, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Yu-Liang Shih, Jung-Wen Chang
  • PORTABLE ELECTRICAL DEVICE
    Publication number: 20140063720
    Abstract: A portable electrical device includes a tablet computer, a base panel, two supporting arms and two connecting members. Two ends of each supporting arm are pivotally disposed at one lateral side of the tablet computer and one lateral side of the base panel. The base panel has two guiding grooves oppositely arranged on one surface thereof. One end of the connecting member is pivoted with the lateral side of the tablet computer, and the other end of the connecting member is limited and slidably disposed in one of the guiding grooves. When the other ends of both the connecting members are at one distal end of the guiding groove, the tablet computer is stacked on the base panel, and a touch-controlled display of the tablet computer can alternatively face towards or opposite to the base panel.
    Type: Application
    Filed: March 17, 2013
    Publication date: March 6, 2014
    Applicant: Quanta Computer Inc.
    Inventors: Jung-Wen CHANG, Cheng-Pu Chu, Huai-Wu Wen
  • OBJECT GRIPPING DEVICE USING SOLENOID VALVE
    Publication number: 20140053617
    Abstract: An object gripping device using a solenoid valve includes a base having two opposite ends thereof, a fastening portion pivoted at one end of the base and having an object-gripping trench and a through opening having a stopping surface therein at two opposite ends of the fastening portion, a transmission portion pivoted at the other end of the base, a stopping shaft extending through both the transmission portion and the through opening, a first spring connected both the base and the fastening portion, a second spring connected both the base and the transmission portion, and a solenoid valve connected the base and the transmission portion.
    Type: Application
    Filed: April 29, 2013
    Publication date: February 27, 2014
    Applicant: Quanta Computer Inc.
    Inventors: Lin-Wei HUANG, Sheng-Feng CHEN, Jung-Wen CHANG
  • Protection cover mechanism with enhanced space utilization
    Patent number: 8649502
    Abstract: A protection cover mechanism is disclosed. A hollow hinge tube is connected to a protective cover. A first hinge cover body is connected to the hollow hinge tube and includes a positioning rib. A spring is disposed in the first hinge cover body and abuts the hollow hinge tube. A hollow driven member is movably disposed in the first hinge cover body and abuts the spring. The spring is abutted between the hollow hinge tube and the hollow driven member. The hollow driven member includes a protrusion. The positioning rib is positioned on the hollow driven member, forcing the hollow driven member to move linearly with respect to the first hinge cover body. A fixing base includes a hollow tube fit on the hollow driven member and having an annular inner guide track with an undulated profile. The protrusion abuts the annular inner guide track.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: February 11, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Jung-Wen Chang, Ming-Yuan Lan, Ching-Chung Wang, Lin-Wei Huang
  • PORTABLE ELECTRONIC DEVICE
    Publication number: 20140029189
    Abstract: A portable electronic device comprises an upper member, a lower member having two guiding grooves, two supports and two connecting members. One end of each support is pivoted to the upper member with a first pivot portion. The other end of each support is pivoted to the lower member with a second pivot portion. One end of each connecting member is pivoted at one side of the upper member, and the other end thereof is restricted in the guiding groove and capable of reciprocally sliding in the guiding groove.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 30, 2014
    Applicant: QUANTA COMPUTER INC.
    Inventors: Jung-Wen CHANG, Ming-Yuan LAN, Ching-Cheng WANG, Lin-Wei HUANG
  • Combined keyboard and cover
    Patent number: D684983
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: June 25, 2013
    Assignee: Quanta Computer Inc.
    Inventors: Chien-Ming Wu, Jung-Wen Chang, Shih-Yun Lee
  • Tablet computer
    Patent number: D711370
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 19, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Hsiu-Wen Chen, Jung-Wen Chang, Shih-Yun Lee
  • Tablet computer
    Patent number: D711371
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 19, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Jyun-Jie Chen, Shih-Yun Lee, Jung-Wen Chang
  • Tablet computer
    Patent number: D712404
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 2, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Shih-Pin Yuan, Shih-Yun Lee, Jung-Wen Chang
  • Pico projector
    Patent number: D719207
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: December 9, 2014
    Assignee: Quanta Computer, Inc.
    Inventors: Jyun-Jie Chen, Shih-Yun Lee, Jung-Wen Chang
  • Tablet computer
    Patent number: D719566
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: December 16, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Jyun-Jie Chen, Shih-Yun Lee, Jung-Wen Chang
  • Game controller
    Patent number: D726832
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 14, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Yen-Chun Chou, Shih-Yun Lee, Jung-Wen Chang
  • Tablet computer
    Patent number: D729232
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Chien-Ming Wu, Jung-Wen Chang, Shih-Yun Lee