Patents by Inventor OP Global Holdings Limited

OP Global Holdings Limited 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).

  • CLASS-D AMPLIFIER
    Publication number: 20130147552
    Abstract: A class-D amplifier includes a quantized amplifier, having no quantization error feedback circuit, coupled to receive a digital input signal, according to which an output signal is generated to be switched between power rails. The digital input signal is pre-compensated to correct an error. A low-pass filter is configured to operate on the output signal to generate a filtered output signal.
    Type: Application
    Filed: November 12, 2012
    Publication date: June 13, 2013
    Applicant: OP Global Holdings Limited
    Inventor: OP Global Holdings Limited
  • EVENT-BASED BIO-SIGNAL CAPTURING SYSTEM
    Publication number: 20130150698
    Abstract: An event-based bio-signal capturing system is disclosed. At least one bio-signal capturing device captures a bio-signal measured from biological beings; and at least one event capturing device captures an event and generates a corresponding event marker. A data recording device acquires the bio-signal and the event marker, wherein the bio-signal and the event marker are acquired with corresponding time reference for subsequent event-based data analysis.
    Type: Application
    Filed: November 12, 2012
    Publication date: June 13, 2013
    Applicant: OP GLOBAL HOLDINGS LIMITED
    Inventor: OP GLOBAL HOLDINGS LIMITED