Patents by Inventor Shih-Chang Chen

Shih-Chang 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: 20210172430
    Abstract: A miniature blower includes a soft sheet, a nozzle plate, a chamber frame, an actuator body, an insulation frame, and a conductive frame. The nozzle plate has a suspension portion, and the soft sheet is disposed on the suspension portion. The chamber frame is disposed on the nozzle plate. The actuator body includes a piezoelectric carrier plate, an adjusting resonance plate, and a piezoelectric plate. The actuator body is disposed on the chamber frame. The insulation frame is disposed on the actuator. The center point of a central hole of the soft sheet and the center point of a hollow hole of the suspension portion are located at the same axis.
    Type: Application
    Filed: November 13, 2020
    Publication date: June 10, 2021
    Inventors: Hao-Jan Mou, Jyun-Yi Jhang, Chun-Lung Tseng, Jia-Yu Liao, Shih-Chang Chen, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo, Yi-Ting Lu
  • Patent number: 11002719
    Abstract: An actuating and sensing module includes a first substrate, a second substrate, an actuating device and a sensor. A gas flow channel is formed by stacking the first substrate and the second substrate. The gas inlet, the gas flow channel and the gas outlet are in communication with each other to define a gas flow loop. The actuating device is disposed in the gas inlet of the second substrate and electrically connected to a control circuit to obtain a driving power. The sensor is disposed in the gas flow loop and electrically connected to a control circuit of the first substrate to transmit sensed data. While the actuating device drives outside gas from the outside, the gas is transported into the gas flow loop and sensed by the sensor.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 11, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Li-Pang Mo, Jia-Yu Liao, Hung-Hsin Liao, Chih-Feng Lin, Jheng-Wei Chen, Chi-Feng Huang, Yung-Lung Han
  • Patent number: 10998020
    Abstract: The present disclosure discloses a memory access interface device. The clock generation circuit thereof generates reference clocks. Each of the DDR access signal transmission circuits thereof, under a DDR mode, adjusts a phase and a duty cycle of one of DDR access signals according to one of DDR reference clock signals to generate one of output access signals to access the memory device. The data signal transmission circuit thereof, under an SDR mode, applies a minimum latency on an SDR data signal according to the command and address reference clock signal to generate an output SDR data signal to access the memory device. The command and address signal transmission circuit thereof, under either the DDR or SDR mode, applies a programmable latency on a command and address signal according to the command and address reference clock signal to generate an output command and address signal to access the memory device.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: May 4, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Fu-Chin Tsai, Chun-Chi Yu, Chih-Wei Chang, Gerchih Chou, Kuo-Wei Chi, Shih-Chang Chen, Shih-Han Lin, Min-Han Tsai
  • Patent number: 10995743
    Abstract: An air-filtering protection device includes a filtering mask and an actuating and sensing device. The filtering mask is for being worn to filter air. The actuating and sensing device is mounted and positioned on the filtering mask and includes at least one sensor, at least one actuating device, a microprocessor, a power controller and a data transceiver. The at least one actuating device is disposed on one side of the at least one sensor and includes at least one guiding channel. The actuating device is enabled to transport air to flow toward the sensor through the guiding channel so as to make the air sensed by the sensor.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 4, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Li-Pang Mo, Shih-Chang Chen, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai
  • Patent number: 10962514
    Abstract: An actuating and sensing apparatus includes a circuit board, a housing, an actuating device and a sensor. The housing is disposed on the circuit board and includes an entrance opening, an exit opening and a compartment. The compartment is in communication with an external environment of the housing through the entrance opening and the exit opening. The actuating device is disposed within the compartment and closing the exit opening. The sensor is disposed within the compartment and corresponding to the entrance opening. When the actuating device is enabled, a gas within the compartment is guided to the external environment outside the housing, and a pressure gradient is generated in the compartment so as to introduce a gas from the external environment outside the housing into the compartment through the entrance opening to make the gas detected by the sensor.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 30, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shou-Hung Chen, Shih-Chang Chen, Jia-Yu Liao, Mei-Yen Chen, Chi-Feng Huang, Wei-Ming Lee
  • Patent number: 10960395
    Abstract: A portable liquid measuring and filtering device includes a measuring channel, at least one sensor, at least one actuating device and a filtering element. The measuring channel is used for allowing a target liquid to flow therethrough. The at least one sensor is disposed within the measuring channel for measuring the target liquid. The at least one actuating device is in communication with the measuring channel for transferring the target liquid. The filtering element is disposed within the measuring channel and arranged adjacent to the at least one actuating device for filtering the target liquid. If a measuring result of the sensor indicates that a monitored value of the target liquid is abnormal, the actuating device is enabled to transfer the target liquid. Consequently, the target liquid is filtered by the filtering element.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: March 30, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Shih-Chang Chen, Li-Pang Mo, Ching-Sung Lin, Yung-Lung Han, Chi-Feng Huang, Wei-Ming Lee
  • Patent number: 10962452
    Abstract: An actuating and sensing module includes a first substrate, a second substrate, an actuating device and a sensor. The first and second substrates are stacked on each other as a gas flow channel is formed therebetween. The gas inlet, the gas flow channel and the gas outlet are in communication with each other to define a gas flow path. The actuating device is disposed in the gas outlet of the second substrate and electrically connected to a control circuit to obtain driving power. The sensor is disposed in the gas flow path and misaligned with the gas inlet. The sensor is spaced apart from the actuating device and is electrically connected to the control circuit. Being driven by the actuating device, the gas is transported from the outside into the gas flow path and monitored by the sensor.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 30, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Patent number: 10958436
    Abstract: Methods for access control of contract data in a distributed system are provided. The distributed system includes a contract generator, a validation server, a database and a distributed ledger which are in communication via a network, the method including the steps of: at the contract generator, receiving digital contract data from a first electronic device, determining a permission setting for accessing contract content associated with the digital contract data based on the digital contract data, and setting the permission setting to the validation server via the network, obtaining a validation link corresponding to the digital contract data from the validation server, generating contract information for digital contract data according to partial content of the digital contract data and the validation link, and storing the contract information in the distributed ledger.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 23, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jiazheng Zhou, Shih-Fang Chang, Ya-Wen Lee, Shih-Chang Chen
  • Patent number: 10952623
    Abstract: A wearable blood pressure measuring device includes a wristband, a valve plate, a gas-collecting seat, a gas transportation device, an elastic medium and a pressure sensor. The wristband has a mounting zone. The mounting zone has a first accommodation recess, a second accommodation recess, a gas-collecting hole and a pressure-releasing hole. The first accommodation recess and the second accommodation recess are in fluid communication with each other through the gas-collecting hole. When the gas transportation device is enabled to transport the gas to the elastic medium, the elastic medium is inflated with the gas and expanded to push the pressure sensor to be in close contact with a measurement part of a user's body, thereby measuring a blood pressure value of a target artery through a scanning operation.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: March 23, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Yung-Lung Han, Chi-Feng Huang, Wei-Ming Lee
  • Patent number: 10955320
    Abstract: A gas detecting device includes a casing, a gas transportation actuator, a gas detector and a driving module. The casing has an inlet, an outlet and an accommodation slot. The inlet and the outlet are in fluid communication with each other, and the accommodation slot is disposed under the inlet and is in fluid communication with the inlet. The gas transportation is disposed within and seals the accommodation slot, and the gas transportation actuator is enabled to introduce air thereinto through the inlet and discharge the air through the outlet. The gas detector is configured to detect an amount of a specific gas in the air introduced through the inlet. The driving module controls the actuations of the gas transportation actuator and the gas detector, so that the gas detector detects the amount of the specific gas in the air.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 23, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Ching-Sung Lin, Yung-Lung Han, Chi-Feng Huang, Wei-Ming Lee
  • Patent number: 10935529
    Abstract: A gas detecting module includes a carrying plate, a sensor, a compartment body and an actuator. The carrying plate has a substrate and a gas opening. The compartment body is divided into a first compartment and a second compartment by a partition plate. The first compartment has an opening. The second compartment has an outlet and accommodates the actuator. The bottom of the compartment body has an accommodation recess receiving the carrying plate, whereby the gas opening is aligned with the outlet, and the sensor packaged on the substrate is disposed within the first compartment through the opening. The partition plate has a notch. The gas detecting module is assembled in a slim-type portable device having a casing. The casing has an inlet aligned with the first compartment. As the actuator is actuated, ambient gas is inhaled into the first compartment, and the sensor detects the gas flowing therethrough.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: March 2, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Chi-Chang Yang, Chiu-Lin Lee, Jia-Yu Liao, Ching-Sung Lin, Chih-Kai Chen, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20210048012
    Abstract: A micro pump includes a base plate, a valve membrane, an upper covering plate and a pump core module. The valve membrane is disposed in a valve membrane accommodation slot of the base plate, seals a fluid channel of the base plate and includes a valve aperture where a protruding portion of the base plate extended through. The upper covering plate is accommodated in an upper covering plate accommodation slot of the base plate and includes a fluid relief aperture sealed by the valve membrane, a fluid converging groove and a fluid converging channel between the fluid converging groove and a fluid-outlet channel of the base plate. The pump core module is accommodated within a pump accommodation slot of the base plate. By actuating the pump core module, the fluid passes through the fluid channel, the valve aperture, the fluid converging groove, and is discharged out through the fluid-outlet channel.
    Type: Application
    Filed: July 2, 2020
    Publication date: February 18, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Chung-Wei Kao, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo
  • Patent number: 10916278
    Abstract: A memory controller comprising: a delay circuit, configured to use a first delay value and a second delay value to respectively delay a sampling clock signal to generate a first and a second delayed sampling clock signal; a sampling circuit, configured to use a first edge of the first delayed sampling clock signal to sample a data signal to generate a first sampling value, and configured to use a second edge of the second delayed sampling clock signal to sample the data signal to generate a second sampling value; and a calibrating circuit, configured to generate a sampling delay value according to the first delay value based on the first sampling value and the second sampling value. The delay circuit uses the sampling delay value to generate an adjusted sampling clock signal and the sampling circuit sample the data signal by the adjusted sampling clock signal.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 9, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Kuo-Wei Chi, Chun-Chi Yu, Chih-Wei Chang, Gerchih Chou, Shih-Chang Chen, Fu-Chin Tsai, Shih-Han Lin, Min-Han Tsai
  • Publication number: 20210027817
    Abstract: A method of foreground auto-calibrating data reception window for a DRAM system is disclosed. The method comprises receiving data strobe and data from a DRAM of the DARM system, capturing a data strobe clock according to the received data strobe, generating three time points with a period of the data strobe clock, sampling the data at the three time points, to obtain three sampled data, determining whether to adjust positions of the three time points according to a comparison among the three sampled data, and configuring the valid data reception window according to the positions of the three time points when determining not to adjust the positions of the three time points.
    Type: Application
    Filed: July 24, 2019
    Publication date: January 28, 2021
    Inventors: Shih-Chang Chen, Chun-Chi Yu, Chih-Wei Chang, Kuo-Wei Chi, Fu-Chin Tsai, Shih-Han Lin, GERCHIH CHOU
  • Publication number: 20210017976
    Abstract: A micro pump is disclosed and includes a fluid-converging plate, a valve membrane, a fluid-outlet plate and a pump core module. The fluid-converging plate includes an inner recess, a protruding portion and a fluid-converging aperture. The protruding portion is disposed at a center of the inner recess. The valve membrane includes a valve aperture. The protruding portion of the fluid-converging plate abuts against the valve aperture. A fluid-converging chamber is formed between the valve membrane and the fluid-converging plate. The fluid-outlet plate in a ring shape includes a fluid-outlet channel. The valve aperture is in fluid communication with the fluid-outlet channel. When the fluid is inhaled into the pump core module, the fluid flows to the fluid-converging chamber through the fluid-converging aperture and then pushes out the valve membrane to flow into the fluid-outlet channel of the fluid-outlet plate through the valve aperture. Thereby the fluid transportation is achieved.
    Type: Application
    Filed: June 16, 2020
    Publication date: January 21, 2021
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Chung-Wei Kao, Yung-Lung Han, Chi-Feng Huang, Chang-Yen Tsai, Wei-Ming Lee
  • Patent number: 10883974
    Abstract: A method for providing air quality information is disclosed. The method includes steps of collecting single-point air quality data from a plurality of mobile devices in a predetermined period of time, wherein the single-point air quality data is sensed by an actuating and sensing module of the mobile device and transmitted to a cloud data processing device through communication transmission. The single-point air quality data is combined with geographic information and processed to generate a real-time air quality map by the cloud data processing device. After the cloud data processing device receives a current location from a client device through communication transmission, information including a motion direction, a designated route, air quality information related to the current location, abnormal-air-quality notification or an evacuated route is transmitted to the client device.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 5, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Li-Pang Mo, Shih-Chang Chen, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Hsuan-Kai Chen, Wei-Ming Lee, Chang-Yen Tsai
  • Patent number: 10883485
    Abstract: A driving system includes a voltage conversion module, a frequency control module, a voltage switching module and a detecting module. The voltage conversion module is used for converting a first DC voltage into a second DC voltage. The frequency control module searches a resonant working frequency of a piezoelectric actuator through circuit oscillation and generates a switching signal according to the resonant working frequency. According to the switching signal, the voltage switching module converts the second DC voltage into an AC voltage so as to drive the piezoelectric actuator. The detecting module includes a gas pressure sensor and a microcontroller. The gas pressure sensor generates a detected gas pressure value according to a result of detecting a gas pressure of the piezoelectric pump. The microcontroller controls the voltage conversion module to adjust the output voltage. Consequently, the gas pressure of the piezoelectric pump is adjusted.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: January 5, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Shih-Chang Chen, Jia-Yu Liao, Chi-Feng Huang, Wei-Ming Lee, Yung-Lung Han
  • Patent number: 10865785
    Abstract: A gas transportation device includes a gas outlet cover, plural flow-guiding pedestals and plural gas pumps. The gas outlet cover includes a gas outlet nozzle and a gas outlet cavity. The gas outlet nozzle and the gas outlet cavity are in communication with each other. Each flow-guiding pedestal includes a main plate, a protruding frame and a chamber frame. The main plate includes a recess and a communicating aperture in communication with the recess. The gas pumps are disposed inside the chamber frames of the flow-guiding pedestals, respectively. The gas outlet cover covers the flow-guiding pedestals and is connected to the protruding frames, whereby plural convergence chambers are defined and are in communication with the gas outlet cavity. Consequently, the gas is transported through the recesses, the communicating apertures, the convergence chambers and the gas outlet cavity sequentially, and finally is discharged out from the gas outlet nozzle.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: December 15, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Jia-Yu Liao, Hung-Hsin Liao, Chi-Feng Huang, Chang-Yen Tsai
  • Patent number: 10859077
    Abstract: A miniature gas control device is disclosed and includes a miniature gas transportation device and a miniature valve device. The miniature gas transportation device includes a protective film, a gas inlet plate, a resonance plate and a piezoelectric actuator stack sequentially. The miniature valve device includes a gas collecting plate, a valve film and a gas outlet plate stacked sequentially. By driving the piezoelectric actuator of the miniature gas transportation device, the gas flows into the miniature gas transportation device from the gas inlet plate, then the gas flows into the miniature valve device through the resonance plate, and the valve opening of the valve film is selectively opened or closed in response to a direction of the gas unidirectionally flowing among the perforations and chambers of the gas collection plate and the gas outlet plate, so as to perform a pressurizing operation and a pressure-releasing operation selectively.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: December 8, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Hung-Hsin Liao, Shih-Chang Chen, Jia-Yu Liao, Shou-Hung Chen, Yung-Lung Han, Wei-Ming Lee
  • Patent number: 10842229
    Abstract: A pressure fixing device applied to a shoe is disclosed. The pressure fixing device includes an inflatable shoe tongue, a first air pump and a control module. The control module drives the air to flow out of the inflatable shoe tongue according to a second enabling signal so that the inflatable shoe tongue tends to shrink and moves toward the wear space to attach to a user's instep. The control module drives the first air pump to pump the air flowing into the inflatable shoe tongue according to a first enabling signal, so that the inflatable shoe tongue tends to expand due to the air inflated and moves away from the wear space to enlarge the opening, by which the user can wear or take off the shoe easily.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: November 24, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Li-Pang Mo, Shih-Chang Chen, Yung-Lung Han, Wei-Ming Lee