Patents by Inventor Wei Chi Chang

Wei Chi 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).

  • Publication number: 20240087057
    Abstract: A power consumption monitoring device includes a sensor, a storage, and a processor. The sensor is configured to detect a power-consuming device quantity and a power consumption amount. The storage is configured to store the power-consuming device quantity and the power consumption amount. The processor is communicatively connected to the sensor and the storage. The processor is configured to calculate a power-consuming device idling indicator based on the power-consuming device quantity and the power consumption amount in a monitoring time interval, wherein the power-consuming device idling indicator is used for indicating a deviation status of the power-consuming device quantity and the power consumption amount. The processor is further configured to determine whether the power-consuming device idling indicator exceeds a warning threshold. In response to the power-consuming device idling indicator exceeding the warning threshold, the processor is further configured to generate a warning message.
    Type: Application
    Filed: December 20, 2022
    Publication date: March 14, 2024
    Inventors: Wei-Chao CHEN, Ming-Chi CHANG, Chih-Pin WEI, Ke-Li WU, Hua-Hsiu CHIANG, Yu-Lun CHANG
  • Publication number: 20240086633
    Abstract: A method for generating and outputting a message is implemented using an electronic device the stores a computer program product and a text database. The text database includes a main message template, a template text that includes a placeholder, and a word group that includes a plurality of preset words for replacing the placeholder. The method includes: in response to receipt of a command for execution of the computer program product, displaying an editing interface including the main message template; in response to receipt of user operation of a selection of the main message template, displaying the template text; in response to receipt of user operation of a selection of one of the preset words via the user interface, generating an edited text by replacing the placeholder with the one of the preset words in the template text; and outputting the edited text as a message.
    Type: Application
    Filed: April 25, 2023
    Publication date: March 14, 2024
    Inventors: Yi-Ru CHIU, Ting-Yi LI, Hong-Xun WANG, Jin-Lin CHEN, Chih-Hsuan YEH, Chia-Chi YIN, Wei-Ting LI, Po-Lun CHANG
  • Publication number: 20240072633
    Abstract: The present invention provides a resonant switched capacitor voltage converter (RSCC), which is coupled to and operates synchronously with another RSCC. The RSCC includes: plural switches, a resonant inductor, a resonant capacitor, and a control circuit. The control circuit controls the switches, so that the resonant capacitor and the resonant inductor are connected in series to each other, to perform resonant operation in a switching period, thus converting an input voltage to an output voltage. The control circuit generates a zero current signal and a first synchronization signal when a resonant inductor current flowing through the resonant inductor is zero. The control circuit turns off at least one corresponding switch according to the zero current signal. The control circuit turns on at least one corresponding switch according to the zero-current signal and a second synchronization signal, so that the RSCC operates in synchronization with at least another RSCC.
    Type: Application
    Filed: August 14, 2023
    Publication date: February 29, 2024
    Inventors: Kuo-Chi Liu, Ta-Yung Yang, Wei-Hsu Chang, Chao-Chi Chen
  • Publication number: 20240074119
    Abstract: An immersion cooling system includes a pressure seal tank, an electronic apparatus, a pressure balance pipe and a relief valve. The pressure seal tank is configured to store coolant. A vapor space is formed in the pressure seal tank above the liquid level of the coolant. The electronic apparatus is completely immersed in the coolant. The pressure balance pipe has a gas collection length. The first port of the pressure balance pipe is disposed on the top surface of the pressure seal tank. The relief valve is disposed on the second port of the pressure balance pipe. The second port is farther away from the top surface of the pressure seal tank than the first port. The gas collection length of the pressure equalization tube allows the concentration of vaporized coolant at the first port to be greater than the concentration of vaporized coolant at the second port.
    Type: Application
    Filed: May 9, 2023
    Publication date: February 29, 2024
    Inventors: Ren-Chun CHANG, Wei-Chih LIN, Sheng-Chi WU, Wen-Yin TSAI, Li-Hsiu CHEN
  • Publication number: 20190179387
    Abstract: A power storage apparatus is provided. The power storage apparatus includes a system host, a battery expansion module, and a communication interface. The system host includes a first switch set and a main battery. The battery expansion module includes a second switch set and an expansion battery. When the system host and the battery expansion module are assembled, an expansion controller and a main controller communicate with each other through the communication interface and selectively control the first switch set and the second switch set to charge the main battery or the expansion battery.
    Type: Application
    Filed: August 10, 2018
    Publication date: June 13, 2019
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Chih-Chung Lin, Wei-Chi Chang, Yung-Hsiang Liu
  • Patent number: 9358684
    Abstract: A wireless transmission device for use in a robot arm is disclosed to include a rotating unit including a first winding and a second winding relatively rotatably arranged in a coaxial manner, and two receiver-transmitter units respectively electrically connected to the first winding and the first winding for receiving a composite signal and then generating a power signal and a control signal. Thus, the receiver-transmitter units can transmit power and data in two ways by means of an electromagnetic coupling between the first winding and the second winding, having the advantages of simple structure and no need for wiring, and allowing the robot arm using the wireless transmission device to be freely rotated through 360 degrees.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 7, 2016
    Assignee: MERRY ELECTRONICS CO., LTD.
    Inventors: Tong-Kun He, Wei-Chi Chang
  • Publication number: 20140169687
    Abstract: Image search systems and methods are provided. The image search system includes a storage unit, a display unit, and a processing unit. The storage unit includes a plurality of image, each having a characteristic value. The processing unit receives a specifying of a target image, analyzes at least one content feature of the target image, obtains at least one capturing feature of the target image, and calculates a characteristic value for the target image according to the at least one content feature and the at least one capturing feature of the target image. The processing unit compares the characteristic value of the target image with the characteristic value of the respective image in the storage unit, thus to generate a similarity score for the respective image in the storage unit. The processing unit displays the images in sequence via the display unit according to the corresponding similarity scores.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: HTC CORPORATION
    Inventors: Ying-Chung CHEN, Tai-Ling LU, Wei-Chi CHANG
  • Patent number: 6991019
    Abstract: A screen is constructed to have a screen case, a support member fastened to one side of the screen case and a reel pivotally mounted inside the screen case and rolling up a screen body. The reel has a flat inside stop face and a plug member is fixedly fastened to one end of the reel. An axle is suspended inside the reel, the axle having a first end fixedly fastened to the screen case and a second end fastened pivotally with the plug member. A spring member is sleeved onto the axle inside the reel, the spring member having a first end terminating in a projecting portion stopped at the flat inside stop face of the reel and a second end fixedly connected to one end of the axle.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: January 31, 2006
    Inventor: Wei Chi Chang
  • Patent number: 5617270
    Abstract: An improved tape winding linkage is disclosed. It comprises: (a) a deck, a gear shaft, a tape loading gear, and a guiding slot formed on the deck; (b) a first link having first and second joints, the first link being connected to the gear shaft at the first joint thereof; (c) a second link having first, second, and third joints, wherein the second link is divided into a first portion and a second portion intersecting at an angle at the second joint of the second link, and the second link further comprises a guiding pin located at the an under surface of the second joint to be received by and slide along the guiding slot of the deck; (d) a third link having first and second joints; (e) an inclined pole base connected to the third link at the second joint of the third link; and (f) an inclined pole base guiding pin provided at an under surface of the inclined pole base to be received by and slide along the guiding slot of the deck.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: April 1, 1997
    Assignee: Industrial Technology Research Institute
    Inventors: Jaw-Horng Tzeng, Ming-Jer Chiu, Yii-Wei Hwang, Wei-Chi Chang