Patents by Inventor Voravit Vorapipat

Voravit Vorapipat 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).

  • Patent number: 11949769
    Abstract: Embodiments disclosed herein relate to improving a power output of a transmitter of an electronic device. To do so, the transmitter may include signal selection circuitry to adjust a sign selection signal to accurately transition between polarities of a quadrature (e.g., I or Q) component signal stored in or for which an indication is stored in a storage cell of a radio frequency digital-to-analog converter. The sign selection signal may generate a separate adjusted sign selection signal for each polarity of each quadrature component signal such that a transition of the selection signal between a first value and a second value (e.g., logic high and low) occurs when the respective quadrature (e.g., +/? and I/Q) component signal is a logic low. In this way, the signal selection circuitry reduces an error pulse in the output of the transmitter.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: April 2, 2024
    Assignee: Apple Inc.
    Inventors: Voravit Vorapipat, Morteza Nick, Krishna Chaitanya Reddy Gangavaram, Antonio Passamani
  • Publication number: 20220345288
    Abstract: Embodiments disclosed herein relate to improving a power output of a transmitter of an electronic device. To do so, the transmitter may include signal selection circuitry to adjust a sign selection signal to accurately transition between polarities of a quadrature (e.g., I or Q) component signal stored in or for which an indication is stored in a storage cell of a radio frequency digital-to-analog converter. The sign selection signal may generate a separate adjusted sign selection signal for each polarity of each quadrature component signal such that a transition of the selection signal between a first value and a second value (e.g., logic high and low) occurs when the respective quadrature (e.g., +/? and I/Q) component signal is a logic low. In this way, the signal selection circuitry reduces an error pulse in the output of the transmitter.
    Type: Application
    Filed: May 2, 2022
    Publication date: October 27, 2022
    Inventors: Voravit Vorapipat, Morteza Nick, Krishna Chaitanya Reddy Gangavaram, Antonio Passamani
  • Patent number: 11368277
    Abstract: Embodiments disclosed herein relate to improving a power output of a transmitter of an electronic device. To do so, the transmitter may include signal selection circuitry to adjust a sign selection signal to accurately transition between polarities of a quadrature (e.g., I or Q) component signal stored in or for which an indication is stored in a storage cell of a radio frequency digital-to-analog converter. The sign selection signal may generate a separate adjusted sign selection signal for each polarity of each quadrature component signal such that a transition of the selection signal between a first value and a second value (e.g., logic high and low) occurs when the respective quadrature (e.g., +/? and I/Q component signal is a logic low. In this way, the signal selection circuitry reduces an error pulse in the output of the transmitter.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: June 21, 2022
    Assignee: Apple Inc.
    Inventors: Voravit Vorapipat, Morteza Nick, Krishna Chaitanya Reddy Gangavaram, Antonio Passamani