Patents by Inventor Freddy David

Freddy David 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).

  • Multi-master security circuit
    Patent number: 11727153
    Abstract: A System on Chip includes at least two hardware masters, a security circuit, and a communication infrastructure for communication between the hardware masters and the security circuit, the communication infrastructure being based on a given interface communication protocol. Each hardware master is configured to send a request to the security circuit for execution of the request by the security circuit through the communication infrastructure, each request comprising at least one service identifier identifying a service.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 15, 2023
    Assignee: SECURE-IC SAS
    Inventors: Rachid Dafali, Freddy David, Michel Le Rolland, Karine Lorvellec
  • MULTI-MASTER SECURITY CIRCUIT
    Publication number: 20210312091
    Abstract: A System on Chip includes at least two hardware masters, a security circuit, and a communication infrastructure for communication between the hardware masters and the security circuit, the communication infrastructure being based on a given interface communication protocol. Each hardware master is configured to send a request to the security circuit for execution of the request by the security circuit through the communication infrastructure, each request comprising at least one service identifier identifying a service.
    Type: Application
    Filed: May 24, 2019
    Publication date: October 7, 2021
    Inventors: Rachid DAFALI, Freddy DAVID, Michel LE ROLLAND, Karine LORVELLEC
  • HEADPHONE OR HEADSET AND AUDIO PRODUCING DEVICE TO WHICH THE HEADPHONE OR HEADSET IS INTENDED TO BE CONNECTED
    Publication number: 20160007113
    Abstract: An audio system comprises an audio producing device and a headphone or a headset. The audio producing device transmits to the headphone or the headset left and right analog signals intended respectively for left or right analog speakers, and transmits to the headphone or the headset a power supply signal. The headphone or the headset comprises at least one digital microphone and means for superimposing digital data, resulting from sound captures performed by each digital microphone, on top of said left analog signal or on top of said right analog signal or on top of said power supply signal. The audio producing device further comprises means for separating the digital data from said left analog signal or from said right analog signal or from said power supply signal for further processing by the audio producing device. The audio producing device further comprises means for superimposing a clock signal intended to drive each digital microphone on top of said left and/or right analog signal.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 7, 2016
    Applicant: FRANCE BREVETS
    Inventors: Frédéric Garreau, Erwan Nogues, Christian Cognasse, Mathieu Chacun, Simon Lebreton, Freddy David, Yannick Landre, Giuseppe Torres