Patents by Inventor Eddie L. Ng

Eddie L. Ng 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).

  • Overload recovery optimization in microelectromechanical system application specific integrated circuit
    Patent number: 11661334
    Abstract: Disclosed herein is a MEMS ASIC. In some examples, the MEMS ASIC can include a MEMS, an analog front end (AFE) amplifier, an analog-to-digital converter (ADC), an overload detector, and a high-ohmic (HO) block. The HO block and the MEMS can form a high-pass filter (HPF). The impedance of the HO block can be related to the DC operating level of the AFE amplifier and the cutoff frequency of the HPF. In some examples, an overload event can occur, and the overload detector can be configured to adjust the impedance of the HO block to reduce the settling time of the MEMS ASIC. Methods of using the MEMS ASIC to reduce the settling time of the MEMS ASIC due to an overload event are disclosed herein.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: May 30, 2023
    Assignee: Apple Inc.
    Inventor: Eddie L. Ng
  • OVERLOAD RECOVERY OPTIMIZATION IN MICROELECTROMECHANICAL SYSTEM APPLICATION SPECIFIC INTEGRATED CIRCUIT
    Publication number: 20220177297
    Abstract: Disclosed herein is a MEMS ASIC. In some examples, the MEMS ASIC can include a MEMS, an analog front end (AFE) amplifier, an analog-to-digital converter (ADC), an overload detector, and a high-ohmic (HO) block. The HO block and the MEMS can form a high-pass filter (HPF). The impedance of the HO block can be related to the DC operating level of the AFE amplifier and the cutoff frequency of the HPF. In some examples, an overload event can occur, and the overload detector can be configured to adjust the impedance of the HO block to reduce the settling time of the MEMS ASIC. Methods of using the MEMS ASIC to reduce the settling time of the MEMS ASIC due to an overload event are disclosed herein.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 9, 2022
    Inventor: Eddie L. Ng
  • Overload recovery optimization in microelectromechanical system application specific integrated circuit
    Patent number: 11235970
    Abstract: Disclosed herein is a MEMS ASIC. In some examples, the MEMS ASIC can include a MEMS, an analog front end (AFE) amplifier, an analog-to-digital converter (ADC), an overload detector, and a high-ohmic (HO) block. The HO block and the MEMS can form a high-pass filter (HPF). The impedance of the HO block can be related to the DC operating level of the AFE amplifier and the cutoff frequency of the HPF. In some examples, an overload event can occur, and the overload detector can be configured to adjust the impedance of the HO block to reduce the settling time of the MEMS ASIC. Methods of using the MEMS ASIC to reduce the settling time of the MEMS ASIC due to an overload event are disclosed herein.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 1, 2022
    Assignee: Apple Inc.
    Inventor: Eddie L. Ng