Patents by Inventor Kai-Lin Chang

Kai-Lin 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: 20250112460
    Abstract: A power supply includes a conversion circuit, an auxiliary power circuit, and an output control circuit. The conversion circuit converts a DC power into a first output power, and the auxiliary power circuit converts the DC power into a first auxiliary power. The output control circuit is used to selectively connect a first output terminal and a second output terminal so that when the output control circuit disconnects the first output terminal and the second output terminal, the first output power supplies power to a critical load through the first output terminal, and when the output control circuit connects the first output terminal and the second output terminal, the first output power supplies power to the critical load and a non-critical load through the first output terminal and the second output terminal respectively.
    Type: Application
    Filed: September 20, 2024
    Publication date: April 3, 2025
    Inventors: Cheng-Chan HSU, Chien-An LAI, Guo-Ning CHEN, Yung-Yuan HSIAO, Kai-Lin CHANG
  • Publication number: 20240414863
    Abstract: A power supply device including a device body, a fan assembly, and a light source set and a handle. The device body includes a case and a control board, and the control board is disposed in the case. The fan assembly is disposed in the case. The light source set is disposed on the side of the fan assembly and includes a flexible printed circuit board and a wire. The wire is electrically connected to the flexible printed circuit board and connected to the control board. The handle is combined with the fan assembly, and at least a part of the flexible printed circuit board is disposed on an end surface of the handle facing the fan assembly. As a result, users may extract the power supply device under environments with insufficient light by exerting a force on the handle.
    Type: Application
    Filed: September 27, 2023
    Publication date: December 12, 2024
    Inventors: Kai-Lin CHANG, Ching-Tang CHANG
  • Patent number: 11044999
    Abstract: A swing chair includes a base, a seat, and a driving frame. The seat is disposed above the base. The driving frame is disposed between the base and the seat. The driving frame includes a first fixing base, a first shaft, a second fixing base, a second shaft, a first driving assembly, and a second driving assembly. The first fixing base is fixed to the base. The first shaft is rotatably connected to the first fixing base. The second fixing base is fixed to the seat. The second shaft is connected to the first shaft and the second fixing base is rotatably connected to the second shaft. The first driving assembly is configured to drive the first shaft to rotate with respect to the first fixing base. The second driving assembly is configured to drive the second fixing base to rotate with respect to the second shaft.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: June 29, 2021
    Assignee: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo, Chao-Di Shen
  • Patent number: 10914104
    Abstract: A pivoting mechanism includes a first hollow tube and a second hollow tube. The second hollow tube is rotatably sleeved on the first hollow tube to generate a torsion force with the first hollow tube. An electronic device is also provided.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: February 9, 2021
    Assignee: Acer Incorporated
    Inventors: Chao-Di Shen, Kai-Lin Chang, Yan-Lin Kuo
  • Publication number: 20200263466
    Abstract: A pivoting mechanism includes a first hollow tube and a second hollow tube. The second hollow tube is rotatably sleeved on the first hollow tube to generate a torsion force with the first hollow tube. An electronic device is also provided.
    Type: Application
    Filed: December 19, 2019
    Publication date: August 20, 2020
    Applicant: Acer Incorporated
    Inventors: Chao-Di Shen, Kai-Lin Chang, Yan-Lin Kuo
  • Publication number: 20200196761
    Abstract: A swing chair includes a base, a seat, and a driving frame. The seat is disposed above the base. The driving frame is disposed between the base and the seat. The driving frame includes a first fixing base, a first shaft, a second fixing base, a second shaft, a first driving assembly, and a second driving assembly. The first fixing base is fixed to the base. The first shaft is rotatably connected to the first fixing base. The second fixing base is fixed to the seat. The second shaft is connected to the first shaft and the second fixing base is rotatably connected to the second shaft. The first driving assembly is configured to drive the first shaft to rotate with respect to the first fixing base. The second driving assembly is configured to drive the second fixing base to rotate with respect to the second shaft.
    Type: Application
    Filed: November 7, 2019
    Publication date: June 25, 2020
    Applicant: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo, Chao-Di Shen
  • Patent number: 10606376
    Abstract: A stylus including a pen rod, a first pen barrel, a second pen barrel, a driving element, and an actuating element is provided. The first pen barrel has a first end portion, a second end portion, and a first engagement slot located at the second end portion. The first end portion is fixed to the pen rod. The second pen barrel is sleeved on the second end portion. The driving element is disposed in the first pen barrel and includes an engagement portion. The engagement portion is engaged with the first engagement slot. The actuating element passes through the second pen barrel and the first pen barrel and is coupled to the driving element. The actuating element is configured to move toward a first direction after receiving a force to cause the driving element to be elastically deformed to separate the engagement portion from the first engagement slot.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 31, 2020
    Assignee: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo
  • Publication number: 20200004353
    Abstract: A retractable pen adapted for being accommodated in a portable electronic device is provided. The retractable pen includes a housing, a shaft fixed in the housing and having a first ratcheting structure, a cap having a second ratcheting structure movably engaged with the first ratcheting structure, a driving member rotatably sheathing the shaft and having a third ratcheting structure, and an elastic member sheathing the shaft and leaning against the shaft and the driving member. The elastic member constantly drives the driving member toward the first ratcheting structure or the second ratcheting structure. In a first state, the third ratcheting structure leans against the first ratcheting structure. In a second state, the third ratcheting structure is movably engaged with the second ratcheting structure and leans against the first ratcheting structure so as to push the cap away from the housing.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 2, 2020
    Applicant: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo
  • Patent number: 10503284
    Abstract: A retractable pen adapted for being accommodated in a portable electronic device is provided. The retractable pen includes a housing, a shaft fixed in the housing and having a first ratcheting structure, a cap having a second ratcheting structure movably engaged with the first ratcheting structure, a driving member rotatably sheathing the shaft and having a third ratcheting structure, and an elastic member sheathing the shaft and leaning against the shaft and the driving member. The elastic member constantly drives the driving member toward the first ratcheting structure or the second ratcheting structure. In a first state, the third ratcheting structure leans against the first ratcheting structure. In a second state, the third ratcheting structure is movably engaged with the second ratcheting structure and leans against the first ratcheting structure so as to push the cap away from the housing.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 10, 2019
    Assignee: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo
  • Publication number: 20190064943
    Abstract: A stylus including a pen rod, a first pen barrel, a second pen barrel, a driving element, and an actuating element is provided. The first pen barrel has a first end portion, a second end portion, and a first engagement slot located at the second end portion. The first end portion is fixed to the pen rod. The second pen barrel is sleeved on the second end portion. The driving element is disposed in the first pen barrel and includes an engagement portion. The engagement portion is engaged with the first engagement slot. The actuating element passes through the second pen barrel and the first pen barrel and is coupled to the driving element. The actuating element is configured to move toward a first direction after receiving a force to cause the driving element to be elastically deformed to separate the engagement portion from the first engagement slot.
    Type: Application
    Filed: December 20, 2017
    Publication date: February 28, 2019
    Applicant: Acer Incorporated
    Inventors: Kai-Lin Chang, Yan-Lin Kuo
  • Patent number: 10061348
    Abstract: A portable electronic device including a body, a stand, and first and second magnetic assemblies is provided. The stand is pivoted to the body to rotate and being opened or closed relative to the body. The first magnetic assembly having a first magnetic dipole is movably disposed in the body. The second magnetic assembly having a second magnetic dipole is disposed on the stand. When the stand is closed to the body, the first and second magnetic dipoles correspond to each other, and produce a first and second corresponding states. In the first corresponding state, magnetic poles with opposite polarities of the first and second magnetic dipoles correspond to and attract each other. In the second corresponding state, magnetic poles with the same polarity of the first and second magnetic dipoles correspond to and repel each other, and the stand is spread relative to the body due to the repulsion.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 28, 2018
    Assignee: Acer Incorporated
    Inventors: Chao-Di Shen, Yan-Lin Kuo, Kai-Lin Chang
  • Publication number: 20180196470
    Abstract: A portable electronic device including a body, a stand, and first and second magnetic assemblies is provided. The stand is pivoted to the body to rotate and being opened or closed relative to the body. The first magnetic assembly having a first magnetic dipole is movably disposed in the body. The second magnetic assembly having a second magnetic dipole is disposed on the stand. When the stand is closed to the body, the first and second magnetic dipoles correspond to each other, and produce a first and second corresponding states. In the first corresponding state, magnetic poles with opposite polarities of the first and second magnetic dipoles correspond to and attract each other. In the second corresponding state, magnetic poles with the same polarity of the first and second magnetic dipoles correspond to and repel each other, and the stand is spread relative to the body due to the repulsion.
    Type: Application
    Filed: July 19, 2017
    Publication date: July 12, 2018
    Applicant: Acer Incorporated
    Inventors: Chao-Di Shen, Yan-Lin Kuo, Kai-Lin Chang
  • Patent number: 9996112
    Abstract: An electronic assembly including a portable electronic device and a docking station is provided. The portable electronic device has a first surface and a second surface opposite to each other, and the first surface is a display. The docking station includes a body, and first, second, and third supporting plates disposed thereon, wherein the first, the third, and the second supporting plates are located on the body side by side sequentially. The first supporting plate is hinged to the body along a first axis, the second supporting plate is hinged to the body along a second axis, the third supporting plate is freely pivoted to the second supporting plate along the first axis, and freely pivoted to the first supporting plate along the second axis, wherein the first axis and the second axis are parallel to but not overlapped with each other. A docking station is also provided.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 12, 2018
    Assignee: Acer Incorporated
    Inventors: Kai-Lin Chang, Ming-Yen Wu, Chien-Yu Lee, Fang-Ying Huang
  • Publication number: 20180129248
    Abstract: An electronic assembly including a portable electronic device and a docking station is provided. The portable electronic device has a first surface and a second surface opposite to each other, and the first surface is a display. The docking station includes a body, and first, second, and third supporting plates disposed thereon, wherein the first, the third, and the second supporting plates are located on the body side by side sequentially. The first supporting plate is hinged to the body along a first axis, the second supporting plate is hinged to the body along a second axis, the third supporting plate is freely pivoted to the second supporting pate along the first axis, and freely pivoted to the first supporting plate along the second axis, wherein the first axis and the second axis are parallel to but not overlapped with each other. A docking station is also provided.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 10, 2018
    Applicant: Acer Incorporated
    Inventors: Kai-Lin Chang, Ming-Yen Wu, Chien-Yu Lee, Fang-Ying Huang