Patents by Inventor Yi-Tzu Chen

Yi-Tzu Chen 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: 20220167737
    Abstract: A hair comb is provided and comprises a base assembly, a comb teeth assembly, and a cover unit. The base assembly comprises a first surface and a second surface opposite to each other. The comb teeth assembly is placed at the first surface of the base assembly. The cover unit is detachably mounted on the second surface. The cover unit comprises a third surface and a fourth surface opposite to each other. The third surface faces the second surface and the fourth surface is decorated by decorative patterns or figures.
    Type: Application
    Filed: December 1, 2020
    Publication date: June 2, 2022
    Inventor: YI-TZU CHEN
  • Publication number: 20220143458
    Abstract: An exercise device for deep squat and body stretch has a device body, a damping assembly, and a pedal set. The device body has a base. The damping assembly is disposed on the base, and has a tube, a pneumatic cylinder which has multiple positioning through holes, and a seat. The pneumatic cylinder is mounted in the tube. The adjusting component is able to extend through the tube and is mounted with one of the positioning through holes. The seat is connected to the pneumatic cylinder for height adjustment. The pedal set is assembled on the device body, and has two pedals rotatably mounted on the device body.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 12, 2022
    Inventor: YI-TZU CHEN
  • Publication number: 20220130446
    Abstract: Disclosed herein are related to a memory system including unit storage circuits. In one aspect, each of the unit storage circuits abuts an adjacent one of the unit storage circuits. In one aspect, each of the unit storage circuits includes a first group of memory cells, a second group of memory cells, a first sub-word line driver to apply a first control signal to the first group of memory cells through a first sub-word line extending along a direction, and a second sub-word line driver to apply a second control signal to the second group of memory cells through a second sub-word line extending along the direction. In one aspect, the memory system includes a common word line driver abutting one of the unit storage circuits and configured to apply a common control signal to the unit storage circuits through a word line extending along the direction.
    Type: Application
    Filed: October 27, 2020
    Publication date: April 28, 2022
    Inventors: Yi-Tzu Chen, Ching-Wei Wu, Hau-Tai Shieh, Hung-Jen Liao
  • Publication number: 20210397773
    Abstract: A method of designing a circuit is provided. The method includes: providing a circuit; selecting a first NMOS fin field-effect transistor (FinFET) in the circuit; and replacing the first NMOS FinFET having a first fin number with a second NMOS FinFET having a second fin number and a third NMOS FinFET having a third fin number, wherein the sum of the second fin number and the third fin number is equal to the first fin number.
    Type: Application
    Filed: April 9, 2021
    Publication date: December 23, 2021
    Inventors: Yi-Tzu Chen, Hau-Tai Shieh, Che-Ju Yeh
  • Publication number: 20210327499
    Abstract: Devices and methods are provided for word line pulse width control for a static random access memory (SRAM) devices. A control circuit includes a first transistor, an inverter coupled to the first transistor, and a second transistor comprising a gate, a first source/drain terminal and a second source/drain terminal. The second transistor is coupled to the inverter. The first source/drain terminal of the second transistor is coupled in series to the first transistor. The second source/drain terminal is coupled to a decoder driver circuit. The second transistor is configured to charge a load of a common decoder line so as to reduce an effective load of the decoder driver circuit.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Anjana Singh, Cheng Hung Lee, Hau-Tai Shieh, Yi-Tzu Chen
  • Publication number: 20210241811
    Abstract: A memory device includes an array of memory cells and a plurality of peripheral circuits operably coupled to the memory array. A power control circuit may be configured to individually control an application of power to each of the plurality of peripheral circuits and the array of memory cells. Inserting a switch device across the different power domains to achieve the same sequential wake-up path for the peripheral circuits connected to different power domains reduces peak current.
    Type: Application
    Filed: November 24, 2020
    Publication date: August 5, 2021
    Inventors: Che-Ju Yeh, Hau-Tai Shieh, Yi-Tzu Chen
  • Patent number: 11056182
    Abstract: Devices and methods are provided for word line pulse width control for a static random access memory (SRAM) devices. A control circuit includes a first transistor, an inverter coupled to the first transistor, and a second transistor comprising a gate, a first source/drain terminal and a second source/drain terminal. The second transistor is coupled to the inverter. The first source/drain terminal of the second transistor is coupled in series to the first transistor. The second source/drain terminal is coupled to a decoder driver circuit. The second transistor is configured to charge a load of a common decoder line so as to reduce an effective load of the decoder driver circuit.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: July 6, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Anjana Singh, Cheng Hung Lee, Hau-Tai Shieh, Yi-Tzu Chen
  • Publication number: 20210161285
    Abstract: A mist spraying hair brush with retractable bristles includes a brush body, an actuating shaft, a mist spraying assembly, and a housing containing these components. The actuating shaft has a bended portion. When the actuating shaft is rotated and the bended portion pushes the brush body, multiple bristles of the brush body extend out of the housing. The mist spraying assembly has an electric oscillation assembly and an injection portion. The injection portion communicates with the oscillation assembly, such that liquid flows to the oscillation assembly via the injection portion and is atomized into spray. Then the spray flows out of the housing. The mist spraying hair brush with retractable bristles is small in size and is convenient in storage. Moreover, the multiple bristles can retract into the housing, so the multiple bristles will not be bended when carried in a bag full of objects.
    Type: Application
    Filed: March 18, 2020
    Publication date: June 3, 2021
    Inventor: Yi-Tzu Chen
  • Publication number: 20200279603
    Abstract: Devices and methods are provided for word line pulse width control for a static random access memory (SRAM) devices. A control circuit includes a first transistor, an inverter coupled to the first transistor, and a second transistor comprising a gate, a first source/drain terminal and a second source/drain terminal. The second transistor is coupled to the inverter. The first source/drain terminal of the second transistor is coupled in series to the first transistor. The second source/drain terminal is coupled to a decoder driver circuit. The second transistor is configured to charge a load of a common decoder line so as to reduce an effective load of the decoder driver circuit.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Anjana Singh, Cheng Hung Lee, Hau-Tai Shieh, Yi-Tzu Chen
  • Patent number: 10658026
    Abstract: Devices and methods are provided for word line pulse width control for a static random access memory (SRAM) devices. An inverter within a pre-decoder circuit receives a first input of a clocked address. The inverter determines an output based on the clocked address. An electrical load of a decoder driver circuit of the SRAM device is modified based on the output. Current to a transistor coupled at a common node is provided. The transistor is configured to electrically couple a plurality of transistors of the decoder driver circuit within the SRAM device.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 19, 2020
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Anjana Singh, Cheng Hung Lee, Hau-Tai Shieh, Yi-Tzu Chen
  • Patent number: 10632335
    Abstract: A magnetically-controlled damping device has a fixing disk, a rotating disk, a plurality of friction-proof sleeves, a plurality of brake shoes, a plurality of magnets, an elastic element, and an operating element. The rotating disk has a plurality of guiding rods sleeved by the friction-proof sleeves respectively. By adjusting a distance between the magnets and a rotating wheel, a damping value of the magnetically-controlled damping device can be adjusted. Moreover, since the friction-proof sleeves are between the guiding rods and the guiding grooves, the guiding rods do not wear out. The magnetically-controlled damping device can provide a more stable damping value and a longer service life.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: April 28, 2020
    Inventor: Yi-Tzu Chen
  • Patent number: 10632339
    Abstract: A treadmill includes a base frame, a treadmill belt, a plurality of bearing wheels, a bearing frame, and a limiting frame. The treadmill belt is rotatably installed on the base frame. The bearing wheel is mounted on an inner surface of the treadmill belt. Each bearing wheel is inclined with respect to a horizontal plane, and the bearing frame and the limiting frame are both mounted on the base frame. The bearing frame supports the bearing wheels of the upper section of the treadmill belt. The limiting frame is disposed on one side of the bearing wheel and abuts the bearing wheel. The treadmill has the advantages that the friction between the limiting frame and the bearing wheels can be reduced and can avoid sudden stop or sticking.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: April 28, 2020
    Inventor: Yi-Tzu Chen
  • Publication number: 20200023221
    Abstract: A magnetically-controlled damping device has a fixing disk, a rotating disk, a plurality of friction-proof sleeves, a plurality of moving disks, a plurality of magnets, an elastic element, and an operating element. The rotating disk has a plurality of guiding rods sleeved by the friction-proof sleeves respectively. By adjusting a distance between the magnets and a rotating wheel, a damping value of the magnetically-controlled damping device can be adjusted. Moreover, since the friction-proof sleeves are between the guiding rods and the guiding grooves, the guiding rods do not wear out. The magnetically-controlled damping device can provide a more stable damping value and a longer service life.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 23, 2020
    Inventor: Yi-Tzu CHEN
  • Publication number: 20190314674
    Abstract: A treadmill includes a base frame, a treadmill belt, a plurality of bearing wheels, a bearing frame, and a limiting frame. The treadmill belt is rotatably installed on the base frame. The bearing wheel is mounted on an inner surface of the treadmill belt. Each bearing wheel is inclined with respect to a horizontal plane, and the bearing frame and the limiting frame are both mounted on the base frame. The bearing frame supports the bearing wheels of the upper section of the treadmill belt. The limiting frame is disposed on one side of the bearing wheel and abuts the bearing wheel. The treadmill has the advantages that the friction between the limiting frame and the bearing wheels can be reduced and can avoid sudden stop or sticking.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 17, 2019
    Inventor: Yi-Tzu CHEN
  • Publication number: 20190231629
    Abstract: A seated inversion table has a support frame assembly, two hand rest assemblies, a seat assembly, and a foot-clamping frame assembly. The support frame assembly has fixing portions. Each hand rest assembly is pivotably mounted on the support frame assembly and has a hand rest and a controlling set. The controlling set is securely mounted on the hand rest and selectively fixed on the fixing portions. The seat assembly is pivotably mounted on the support frame assembly. The foot-clamping frame assembly is mounted on the support frame assembly. When the controlling assemblies are fixed on the fixing portions, the seated inversion table cannot be tilted. When the controlling assemblies are not fixed on the fixing portions, the seated inversion table can be tilted. Thus, the user can adjust the angle of the seated inversion table when sitting on the seated inversion table rather than leave the seated inversion table.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 1, 2019
    Inventor: Yi Tzu CHEN
  • Publication number: 20190192902
    Abstract: An apparatus for squat exercise has a base, a fixed tube, a movable tube, a seat, a shell, two surrounding pillars, two fixing pillars, and at least one elastic rope. The fixed tube is mounted on the base. The movable tube is mounted around the fixed tube, and has an abutting portion formed on an outer surface of the movable tube. The seat is mounted at a top end of the movable tube. The shell has a bottom end mounted on the base. The two surrounding pillars are mounted on the inner surface of the shell. The two fixing pillars are mounted on the inner surface of the shell. The at least one elastic rope has two ends respectively fixed to the two fixing pillars, and the at least one elastic rope is wound on and abuts the two surrounding pillars.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 27, 2019
    Inventor: Yi-Tzu CHEN
  • Patent number: 10299584
    Abstract: A desk has a base that rests on an underlying floor surface, a work surface that is supported by the base, and a seat that is rotatably connected to the base for rotation between a first position, located in a conventional position behind the desk so a person may sit at the desk, and a second position, located to one side of the desk so that a person may instead stand at the desk. The seat is adjustable radially relative to its axis of rotation, vertically up and down relative to the floor surface, and angularly toward its axis of rotation.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 28, 2019
    Assignee: Expectations, LLC
    Inventors: Christopher Henry Leier, Yi-Tzu Chen
  • Publication number: 20180342288
    Abstract: Devices and methods are provided for word line pulse width control for a static random access memory (SRAM) devices. An inverter within a pre-decoder circuit receives a first input of a clocked address. The inverter determines an output based on the clocked address. An electrical load of a decoder driver circuit of the SRAM device is modified based on the output. Current to a transistor coupled at a common node is provided. The transistor is configured to electrically couple a plurality of transistors of the decoder driver circuit within the SRAM device.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 29, 2018
    Inventors: Anjana Singh, Cheng Hung Lee, Hau-Tai Shieh, Yi-Tzu Chen
  • Patent number: 10121520
    Abstract: A memory array includes a first column of memory cells, a second column of memory cells, a first pre-charge circuit, a second pre-charge circuit and a set of input output circuits. The first column of memory cells includes a first bit line, a first word line and a first bit line bar. The second column of memory cells includes the first bit line bar, a second word line and a second bit line. The first pre-charge circuit is coupled to the first bit line. The second pre-charge circuit is coupled to the first bit line bar. The first column of memory cells and the second column of memory cells are configured to share the first bit line bar. The first bit line and the first bit line bar are in a first plane. At least a portion of the first word line and at least a portion of the second word line are in a second plane intersecting the first plane.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: November 6, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Hao Hu, Yi-Tzu Chen, Hao-I Yang, Cheng-Jen Chang, Geng-Cing Lin
  • Patent number: D941589
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 25, 2022
    Assignee: Zhongshan Yingliang Health Technology Co., Ltd
    Inventor: Yi-Tzu Chen