Patents by Inventor Luis Francisco P. Junqueira De Andrade

Luis Francisco P. Junqueira De Andrade 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: 10396790
    Abstract: An integrated circuit includes a digital logic circuit, a multiplexer (MUX) having a first and a second data input, a control input, and an output coupled to an input of the digital logic circuit. The second data input is coupled to receive a high frequency clock signal. The integrated circuit includes a very low frequency (VLF) clock is configured to provide a VLF clock signal when enabled, and a counter coupled to receive the VLF clock signal and configured to toggle an output of the counter upon counting a predetermined number of cycles of the VLF clock signal. The output of the counter is coupled to the first data input of the MUX. The MUX is configured to provide the first data input as the output of the MUX during a low power mode, and otherwise to provide the second data input as the output of the MUX.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 27, 2019
    Assignee: NXP USA, Inc.
    Inventors: Luis Francisco P. Junqueira De Andrade, Ivan Carlos Ribeiro Do Nascimento, Armando Gomes Da Silva, Jr., Marcos Da Costa Barros
  • Patent number: 7840887
    Abstract: A method and system for decoding a received data stream are disclosed. The appropriate time interval to decode the received data stream is derived from the data stream itself. A header of the data stream is analyzed to determine two sets of time ranges, each set of time ranges corresponding to a set of possible data transmission intervals. A preamble of the header contains timing information for development of a first set of time ranges to decode a synchronization word of the header. The synchronization word contains both data information and timing information to develop the second set of time ranges. The data information included in the header is used validate the data stream for the receiving device. The second set of time ranges is used to decode a data payload portion of the data stream.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 23, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Stefano Pietri, Luciana Bulgarelli Carvalho, Luis Francisco P. Junqueira De Andrade
  • Patent number: 7358871
    Abstract: A system and method for decoding a received data stream is disclosed. The method includes detecting first and second data transitions of a received data stream. Each of the data transitions is of a first transition type (e.g. rising or falling transition). The time interval between the data transitions is measured, and a logic value of a data bit encoded in the data stream is decoded based on the measured time interval. By decoding the data stream based on the time intervals between data transitions, the number of decoding errors due to timing changes in the data stream (such as changes due to drift or jitter in the data stream) is reduced.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 15, 2008
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Luciana Bulgarelli Carvalho, Luis Francisco P. Junqueira De Andrade, Stefano Pietri
  • Publication number: 20080065936
    Abstract: A method and system for decoding a received data stream are disclosed. The appropriate time interval to decode the received data stream is derived from the data stream itself. A header of the data stream is analyzed to determine two sets of time ranges, each set of time ranges corresponding to a set of possible data transmission intervals. A preamble of the header contains timing information for development of a first set of time ranges to decode a synchronization word of the header. The synchronization word contains both data information and timing information to develop the second set of time ranges. The data information included in the header is used validate the data stream for the receiving device. The second set of time ranges is used to decode a data payload portion of the data stream.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 13, 2008
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Stefano Pietri, Luciana Bulgarelli Carvalho, Luis Francisco P. Junqueira De Andrade
  • Publication number: 20080048892
    Abstract: A system and method for decoding a received data stream is disclosed. The method includes detecting first and second data transitions of a received data stream. Each of the data transitions is of a first transition type (e.g. rising or falling transition). The time interval between the data transitions is measured, and a logic value of a data bit encoded in the data stream is decoded based on the measured time interval. By decoding the data stream based on the time intervals between data transitions, the number of decoding errors due to timing changes in the data stream (such as changes due to drift or jitter in the data stream) is reduced.
    Type: Application
    Filed: August 25, 2006
    Publication date: February 28, 2008
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Luciana Bulgarelli Carvalho, Luis Francisco P. Junqueira De Andrade, Stefano Pietri