Patents by Inventor Billy Li

Billy Li 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).

  • Leak detection for piping systems using a sound signal
    Patent number: 11313754
    Abstract: A system (100) for monitoring a pipe system (10) includes a first sensor device (102). The first sensor device (102) includes at least one sensor, a wake-up circuit (170), and a processor (172). The at least one sensor is configured to sense an operating characteristic of a piping section (12) of the pipe system (10), and includes a transducer configured such that an audio signal emanating in the piping section induces the transducer to produce a voltage signal indicative of the audio signal. The wake-up circuit (170) is operatively connected with the transducer, and generates a wake-up signal in response to the voltage signal being above a predetermined threshold. The processor (172) is operatively connected to the wake-up circuit (170) and to the at least one sensor, and is configured to identify an operating condition of the pipe system (10) with reference to the operating characteristic sensed by the at least one sensor in response to receiving the wake-up signal.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 26, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Joseph Szurley, Billy Li, Samarjit Das
  • Leak Detection for Piping Systems Using a Sound Signal
    Publication number: 20200326257
    Abstract: A system (100) for monitoring a pipe system (10) includes a first sensor device (102). The first sensor device (102) includes at least one sensor, a wake-up circuit (170), and a processor (172). The at least one sensor is configured to sense an operating characteristic of a piping section (12) of the pipe system (10), and includes a transducer configured such that an audio signal emanating in the piping section induces the transducer to produce a voltage signal indicative of the audio signal. The wake-up circuit (170) is operatively connected with the transducer, and generates a wake-up signal in response to the voltage signal being above a predetermined threshold. The processor (172) is operatively connected to the wake-up circuit (170) and to the at least one sensor, and is configured to identify an operating condition of the pipe system (10) with reference to the operating characteristic sensed by the at least one sensor in response to receiving the wake-up signal.
    Type: Application
    Filed: December 14, 2018
    Publication date: October 15, 2020
    Inventors: Joseph Szurley, Billy Li, Samarjit Das