Patents by Inventor Jonathan Tun Nan Liu

Jonathan Tun Nan Liu 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).

  • Circuitry with resistive input impedance for generating pulses from analog waveforms
    Patent number: 6486819
    Abstract: A decoder for generating output pulses or oscillations in response to input analog waveforms includes a circuit having a variable operating point and having a transfer function characterized by an unstable operating region bounded by a first stable operating region and a second stable operating region. In one embodiment, the circuit is characterized by having a resistive input impedance. The analog waveform forces the operating point of the circuit into its unstable and stable regions to produce oscillatory and non-oscillatory behavior at the circuit's output.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: November 26, 2002
    Assignee: The National University of Singapore
    Inventors: Jonathan Tun Nan Liu, Jurianto Joe, Siong Siew Yong, Kin Mun Lye
  • Circuitry with resistive input impedance for generating pulses from analog waveforms
    Publication number: 20010010501
    Abstract: A decoder for generating output pulses or oscillations in response to input analog waveforms includes a circuit having a variable operating point and having a transfer function characterized by an unstable operating region bounded by a first stable operating region and a second stable operating region. In one embodiment, the circuit is characterized by having a resistive input impedance. The analog waveform forces the operating point of the circuit into its unstable and stable regions to produce oscillatory and non-oscillatory behavior at the circuit's output.
    Type: Application
    Filed: March 13, 2001
    Publication date: August 2, 2001
    Inventors: Jonathan Tun Nan Liu, Jurianto Joe, Siong Siew Yong, Kin Mun Lye