Patents by Inventor Ching-Hsiang Chang

Ching-Hsiang 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: 11055241
    Abstract: An integrated circuit in a physical layer of a receiver is provided. The integrated circuit includes a multi-lane interface, a lane selection circuit and N sampling circuits. The multi-lane interface has N lanes. N is an integer greater than one. The lane selection circuit, coupled to the multi-lane interface, is configured to select M of the N lanes as M clock lanes, and output M signals on the M clock lanes respectively. M is a positive integer less than N. Remaining (N?M) lanes serve as (N?M) data lanes. The N sampling circuits are coupled to the multi-lane interface and the lane selection circuit. (N?M) of the N sampling circuits are coupled to the (N?M) data lanes respectively. Each of the (N?M) sampling circuits is configured to sample a signal on one of the (N?M) data lanes according to one of the M signals on the M clock lanes.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 6, 2021
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Yueh-Chuan Lu, Ching-Hsiang Chang
  • Patent number: 11012087
    Abstract: A physical layer circuit at a transmitter includes an encoding chain and a plurality of flip-flops. The encoding chain, including encoding units coupled in series, is configured to encode a plurality of symbols to generate a plurality of first wire states. The encoding units are arranged to receive the symbols respectively, and convert respective symbol values of the symbols to the first wire states respectively. A first encoding unit is configured to convert a symbol value of a corresponding symbol according to a second wire state provided by a second encoding unit. The flip-flops are arranged to receive and output the first wire states according to a clock signal, respectively. One of the flip-flops is coupled between the first encoding unit and the second encoding unit. The second wire state provided by the second encoding unit is sent to the first encoding unit through the one of the flip-flops.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 18, 2021
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Ching-Hsiang Chang, Yueh-Chuan Lu
  • Publication number: 20210101422
    Abstract: The present disclosure discloses a tire pressure sensor burning device for burning at least one tire pressure sensor having or being externally inputted an exclusive code and a joint code. The tire pressure sensor burning device includes a burning tool in which a communication protocol is stored, and the burning tool includes a transmitting unit connected with the tire pressure sensor and sending a switch command thereto for switching the mode of the tire pressure sensor from the exclusive code to the joint code. The burning tool sends a burning command to the tire pressure sensor with the transmitting unit, and unilaterally burns the communication protocol into the tire pressure sensor via the joint code.
    Type: Application
    Filed: July 29, 2020
    Publication date: April 8, 2021
    Inventors: JI-LIANG CHEN, CHING-HSIANG CHANG
  • Publication number: 20210067113
    Abstract: A driver circuit includes a first output terminal, a first switch, a second switch, a third switch and a power source. The first output terminal is arranged for outputting a data output. The first switch is selectively coupled between the first output terminal and a power supply node according to a data input. The second switch is selectively coupled between the first output terminal and a first reference node according to the data input. The third switch is selectively coupled between the first reference node and a reference voltage. The power source is configured to selectively provide one of a supply voltage signal and a supply current signal to the power supply node. When the power source is configured to provide the supply voltage signal, the third switch is switched on. When the power source is configured to provide the supply current signal, the third switch is switched off.
    Type: Application
    Filed: October 22, 2020
    Publication date: March 4, 2021
    Inventor: CHING-HSIANG CHANG
  • Publication number: 20210040332
    Abstract: A fouling-proof structure is applicable to synthetic leather or fabric and it includes an alcohol-resistant layer; and a water-based fouling-proof layer disposed on the alcohol-resistant layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.
    Type: Application
    Filed: March 6, 2020
    Publication date: February 11, 2021
    Inventors: CHING-HSIANG CHANG, KUO-HSING YEH, CHUN-CHIEH WANG
  • Publication number: 20210040349
    Abstract: A method of producing a fouling-proof structure, comprising steps of a) coating an alcohol-resistant combination on a substrate and then drying the alcohol-resistant combination at 80-160° C. to form an alcohol-resistant layer; and b) coating a water-based fouling-proof combination on the alcohol-resistant layer and then drying the water-based fouling-proof combination above 140° C. to form a water-based fouling-proof layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.
    Type: Application
    Filed: March 6, 2020
    Publication date: February 11, 2021
    Inventors: CHING-HSIANG CHANG, KUO-HSING YEH, CHUN-CHIEH WANG
  • Publication number: 20210044060
    Abstract: An electrical connector assembly includes a plug connector and a receptacle connector each equipped with a grounding bar. The plug connector includes an insulative plug housing with a mating tongue, and a plurality of stationary plug contacts retained in the plug housing. The plug contacts include a plurality of signal contacts and a plurality of grounding contacts. The grounding bar forms a set of first fingers, a set of second fingers and a set pf third fingers respectively located at different positions, to respectively contact the different three positions of the respective grounding contacts.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: TSU-YANG WU, CHING-HSIANG CHANG, WEI-CHOU LIN
  • Publication number: 20210004030
    Abstract: A power management circuit includes an inverter circuit and a latch circuit. The inverter circuit is configured to receive a first control signal from an inverter input terminal and generate a second control signal at an inverter output terminal. The first control signal carries power status information of a first supply voltage. The latch circuit has a latch supply terminal, a first latch input terminal and a second latch input terminal. The latch supply terminal is coupled to a second supply voltage becoming ready before the first supply voltage. The first latch input terminal and the second latch input terminal are coupled to the inverter output terminal and the inverter input terminal respectively. The latch circuit is configured to generate a third control signal according to respective signal levels of the first control signal and the second control signal, and accordingly perform power control of an integrated circuit.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Inventors: CHING-HSIANG CHANG, CHIH-CHIEH YAO, CHUN-HSIANG LAI
  • Patent number: 10886882
    Abstract: A load circuit includes a first resistive element, a first transistor and a tristate control circuit. The first transistor has a first control terminal, a first connection terminal and a second connection terminal. The first connection terminal is coupled to to one of a first amplifier output terminal and a connection node through the first resistive element. The second connection terminal is coupled to the other of the first amplifier output terminal and the connection node. The tristate control circuit has a signal output terminal coupled to the first control terminal. When the signal output terminal is in the low impedance state, the first control terminal is arranged to receive a first control signal outputted from the signal output terminal. When the signal output terminal is in the high impedance state, the first control terminal is arranged to receive a second control signal different from the first control signal.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 5, 2021
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventor: Ching-Hsiang Chang
  • Publication number: 20200252037
    Abstract: A load circuit includes a first resistive element, a first transistor and a tristate control circuit. The first transistor has a first control terminal, a first connection terminal and a second connection terminal. The first connection terminal is coupled to to one of a first amplifier output terminal and a connection node through the first resistive element. The second connection terminal is coupled to the other of the first amplifier output terminal and the connection node. The tristate control circuit has a signal output terminal coupled to the first control terminal. When the signal output terminal is in the low impedance state, the first control terminal is arranged to receive a first control signal outputted from the signal output terminal. When the signal output terminal is in the high impedance state, the first control terminal is arranged to receive a second control signal different from the first control signal.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 6, 2020
    Inventor: CHING-HSIANG CHANG
  • Patent number: 10691017
    Abstract: Pellicle-mask systems for advanced lithography, such as extreme ultraviolet lithography, are disclosed herein. An exemplary pellicle-mask system includes a mask having an integrated circuit (IC) pattern, a pellicle membrane, and a pellicle frame. The pellicle frame has a first surface attached to the pellicle membrane and a second surface opposite the first surface attached to the mask, such that the IC pattern of the mask is positioned within an enclosed space defined by the mask, the pellicle membrane, and the pellicle frame. A void is defined between the pellicle frame and the mask, where the void is defined by a portion of the second surface of the pellicle membrane not attached to the mask. The void is not in communication with the enclosed space and is not in communication with an exterior space of the pellicle-mask system.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 23, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Ching Lee, Ching-Fang Yu, Chun-Hung Lin, Ting-Hao Hsu, Ching-Hsiang Chang, Sheng-Chi Chin
  • Publication number: 20200106457
    Abstract: A physical layer circuit at a transmitter includes an encoding chain and a plurality of flip-flops. The encoding chain, including encoding units coupled in series, is configured to encode a plurality of symbols to generate a plurality of first wire states. The encoding units are arranged to receive the symbols respectively, and convert respective symbol values of the symbols to the first wire states respectively. A first encoding unit is configured to convert a symbol value of a corresponding symbol according to a second wire state provided by a second encoding unit. The flip-flops are arranged to receive and output the first wire states according to a clock signal, respectively. One of the flip-flops is coupled between the first encoding unit and the second encoding unit. The second wire state provided by the second encoding unit is sent to the first encoding unit through the one of the flip-flops.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventor: CHING-HSIANG CHANG
  • Patent number: 10574431
    Abstract: A physical layer circuitry (PHY) includes: N signal pads, a four-signal physical medium attachment sublayer (PMA) and M shielding pads. The N signal pads include at least four signal pads. The four-signal PMA is coupled to the four signal pads. The M shielding pads include at least one first shielding pad that is coupled to the four-signal PMA. Additionally, the first shielding pin is located between a second signal pad of the four signal pads and a third signal pad of the four signal pads; and M and N are positive integers.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 25, 2020
    Assignee: M31 Technology Corporation
    Inventors: Ching-Hsiang Chang, Yuan-Hsun Chang, Yueh-Chuan Lu, Huai-Te Wang
  • Patent number: 10541689
    Abstract: A clock generation circuit arranged in a first system is disclosed. The clock generation circuit includes: a first dual-mode PLL, arranged for generating a first output clock in an integer-N mode or a fractional-N mode selectively, the first output clock being generated based on a first reference clock; and a second dual-mode PLL, arranged for generating a second output clock in an integer-N mode or a fractional-N mode selectively, the second output clock being generated based on the first output clock or a second reference clock selectively. Associated circuitries are also disclosed.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: January 21, 2020
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Yu Hsiang Chang, Ching-Hsiang Chang
  • Publication number: 20200014389
    Abstract: A clock generation circuit arranged in a first system is disclosed. The clock generation circuit includes: a first dual-mode PLL, arranged for generating a first output clock in an integer-N mode or a fractional-N mode selectively, the first output clock being generated based on a first reference clock; and a second dual-mode PLL, arranged for generating a second output clock in an integer-N mode or a fractional-N mode selectively, the second output clock being generated based on the first output clock or a second reference clock selectively. Associated circuitries are also disclosed.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 9, 2020
    Inventors: YU HSIANG CHANG, CHING-HSIANG CHANG
  • Patent number: 10506139
    Abstract: A reconfigurable pin-to-pin interface includes lane circuits and a reconfiguration circuit. A first lane circuit of the lane circuits obtains a first received signal by receiving a first input signal transmitted via a first lane. A second lane circuit of the lane circuits obtains a second received signal by receiving a second input signal transmitted via a second lane. When the second lane is used as one data lane and the first lane is used as one clock lane, the reconfiguration circuit redirects the first received signal to the second lane circuit for acting as an clock input of the second lane circuit. When the first lane is used as one data lane, the reconfiguration circuit blocks the first received signal from being redirected to the second lane circuit for acting as the clock input of the second lane circuit.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: December 10, 2019
    Assignee: MEDIATEK INC.
    Inventors: Li-Hung Chiueh, Man-Ju Lee, Chen-Yu Hsiao, Ching-Hsiang Chang
  • Publication number: 20190354495
    Abstract: An integrated circuit in a physical layer of a receiver is provided. The integrated circuit includes a multi-lane interface, a lane selection circuit and N sampling circuits. The multi-lane interface has N lanes. N is an integer greater than one. The lane selection circuit, coupled to the multi-lane interface, is configured to select M of the N lanes as M clock lanes, and output M signals on the M clock lanes respectively. M is a positive integer less than N. Remaining (N?M) lanes serve as (N?M) data lanes. The N sampling circuits are coupled to the multi-lane interface and the lane selection circuit. (N?M) of the N sampling circuits are coupled to the (N?M) data lanes respectively. Each of the (N?M) sampling circuits is configured to sample a signal on one of the (N?M) data lanes according to one of the M signals on the M clock lanes.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 21, 2019
    Inventors: YUEH-CHUAN LU, CHING-HSIANG CHANG
  • Patent number: 10453677
    Abstract: A method of forming an oxide layer includes the following steps. A substrate is provided. A surface of the substrate is treated to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate. The present invention also provides a method of forming an oxide layer including the following steps. A substrate is provided. A surface of the substrate is treated with a hydrogen peroxide (H2O2) solution or a surface of the substrate is treated with oxygen containing gas, to form an oxygen ion-rich surface. A spin-on-dielectric layer is formed on the oxygen ion-rich surface of the substrate.
    Type: Grant
    Filed: July 9, 2017
    Date of Patent: October 22, 2019
    Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Cheng-Hsu Huang, Jui-Min Lee, Ching-Hsiang Chang, Yi-Wei Chen, Wei-Hsin Liu, Shih-Fang Tzou
  • Patent number: 10446559
    Abstract: A method of fabricating a DRAM includes providing a substrate. Later, a first mask layer is formed to cover the substrate. The first mask layer includes a hydrogen-containing silicon nitride layer and a silicon oxide layer. The hydrogen-containing silicon nitride layer has the chemical formula: SixNyHz, wherein x is between 4 and 8, y is between 3.5 and 9.5, and z equals 1. After that, the first mask layer is patterned to form a first patterned mask layer. Next, the substrate is etched by taking the first patterned mask layer as a mask to form a word line trench. Subsequently, the first patterned mask layer is removed entirely. Finally, a word line is formed in the word line trench.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 15, 2019
    Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Tzu-Chin Wu, Chao-An Liu, Ching-Hsiang Chang, Yi-Wei Chen
  • Patent number: 10396806
    Abstract: A filter circuit includes an amplifier circuit, a resistor-capacitor (RC) network and a first voltage follower. The amplifier circuit has a first input terminal, a second input terminal and an output terminal. The amplifier circuit is configured to output a first output signal from the output terminal according to a first voltage signal at the first input terminal and a second voltage signal at the second input terminal. The RC network, coupled to the first input terminal, is configured to produce the first voltage signal at least in response to a first current signal applied to the first input terminal. The first voltage follower, coupled to the output terminal, is configured to receive the first output signal, and generate a first filtered signal in response to the first output signal.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: August 27, 2019
    Assignee: M31 TECHNOLOGY CORPORATION
    Inventors: Ching-Hsiang Chang, Ming-Ting Wu