Patents by Inventor David Farcy

David Farcy 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: 12554338
    Abstract: An input device detects a key press or release and when the same key has not been pressed or released since a last acknowledgement, a no-acknowledgement packet with key data for that period and any other key data since the last acknowledgement is wirelessly transmitted to the host. When the same key has been pressed or released since a last acknowledgement, an acknowledgement request in a packet with key data for that period and any other accumulated key data is wirelessly transmitted to the host. At a maximum delay time without requesting an acknowledgement, an acknowledgment request packet is transmitted. At a threshold number of key events, an acknowledgment request packet is transmitted.
    Type: Grant
    Filed: March 27, 2025
    Date of Patent: February 17, 2026
    Assignee: Logitech Europe S.A.
    Inventors: Daniel Blasco Serrano, Philippe Chazot, David Farcy
  • Patent number: 12326983
    Abstract: A method comprising receiving a first control signal indicating that a first key on a keyboard is being pressed, the first key functionally assigned as a (logical) modifier; sending a first make command indicating that the modifier is active; receiving a second control signal indicating that a second key on the keyboard is contemporaneously being pressed, the second key functionally assigned as a non-modifier, alphanumeric character; accessing a key remapping database stored on the keyboard that includes key triggers and remapped key targets; in response to determining that the combination of the first key and second keys are included as a key trigger in the key remapping database: sending a first break command indicating that the modifier is inactive; and sending a second make command corresponding to a key target of the remapping database that is associated with the combination of the first and second keys being pressed.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: June 10, 2025
    Assignee: Logitech Europe S.A.
    Inventors: Richard Perring, Junghyun Kim, David Farcy, Christine Flores, Andrew Coonrad, Chris Hughes, Jacob Kottage, Keson Tsao, Zoe Su
  • Publication number: 20250138649
    Abstract: A method comprising receiving a first control signal indicating that a first key on a keyboard is being pressed, the first key functionally assigned as a (logical) modifier; sending a first make command indicating that the modifier is active; receiving a second control signal indicating that a second key on the keyboard is contemporaneously being pressed, the second key functionally assigned as a non-modifier, alphanumeric character; accessing a key remapping database stored on the keyboard that includes key triggers and remapped key targets; in response to determining that the combination of the first key and second keys are included as a key trigger in the key remapping database: sending a first break command indicating that the modifier is inactive; and sending a second make command corresponding to a key target of the remapping database that is associated with the combination of the first and second keys being pressed.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 1, 2025
    Inventors: Richard Perring, Junghyun Kim, David Farcy, Christine Flores, Andrew Coonrad, Chris Hughes, Jacob Kottage, Keson Tsao, Zoe Su
  • Patent number: 9584872
    Abstract: A method to bind the use of a digital audio/video service data receiver to a network on which at least one services provider broadcasts access controlled and free digital audio/video services streams, the method having the steps: receiving by the receiver a periodic signal transmitted by a conditional access system server via the network, said periodic signal being processed by a run time software embedded in the receiver to check legitimacy of the network; displaying services available on the network only if said run time software recognizes the periodic signal as indicating network legitimacy; and checking operability of the run time software and if necessary taking actions to enforce limitation of using the receiver on the network checked as legitimate. The invention further discloses a receiver bound to a specific network configured to perform the method.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 28, 2017
    Assignee: NAGRAVISION S.A.
    Inventors: Remi Cohen-Scali, Ivan Baroffio, Jean-Bernard Fischer, David Farcy
  • Publication number: 20150052545
    Abstract: A method to bind the use of a digital audio/video service data receiver to a network on which at least one services provider broadcasts access controlled and free digital audio/video services streams, the method having the steps: receiving by the receiver a periodic signal transmitted by a conditional access system server via the network, said periodic signal being processed by a run time software embedded in the receiver to check legitimacy of the network; displaying services available on the network only if said run time software recognizes the periodic signal as indicating network legitimacy; and checking operability of the run time software and if necessary taking actions to enforce limitation of using the receiver on the network checked as legitimate. The invention further discloses a receiver bound to a specific network configured to perform the method.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 19, 2015
    Applicant: NAGRAVISION S.A.
    Inventors: Remi Cohen-Scali, Ivan Baroffio, Jean-Bernard Fischer, David Farcy
  • Patent number: 7079526
    Abstract: The invention concerns a protocol for remote launching of a software application and reserving network resources with quality of service between a caller terminal TA and a called terminal TB. Said protocol consists in: transmitting (A) from the caller terminal to the called terminal TB a reservation request for connection via a server and a transmission via an unconnected network and in establishing (B) between the caller terminal TA and the called terminal TB, a procedure for reserving network resources with quality of service by exchange of messages by transmission via the unconnected network. When the network resources reservation is accepted by the server, a connected network between the caller terminal and the called terminal is established (C) on the same physical network supporting the unconnected network via a control network RC.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: July 18, 2006
    Assignee: France Telecom
    Inventors: Christian Wipliez, Stéphane Statiotis, Michel Bourbao, David Farcy