Patents by Inventor Patrick Wetterwald

Patrick Wetterwald 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).

  • Publication number: 20240172298
    Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 23, 2024
    Inventors: Pascal THUBERT, Domenico FICARA, Alessandro ERTA, Amine CHOUKIR, Patrick WETTERWALD
  • Publication number: 20240163786
    Abstract: Multimodal wireless and deterministic mode operation may be provided. An indication may be provided to a client device by an Access Point (AP) that the AP supports multimode operation and which current sub-mode is enabled. Then a determination may be received from the client device to perform an operation based on the indication that the AP supports multimode operation and which sub-mode is currently enabled wherein the operation comprises one of prefer the AP and avoid the AP.
    Type: Application
    Filed: August 25, 2023
    Publication date: May 16, 2024
    Applicant: Cisco Technology, Inc.
    Inventors: Pascal Thubert, J. P. Vasseur, Patrick Wetterwald, Eric Levy-Abegnoli, Jerome Henry
  • Publication number: 20240163770
    Abstract: Leveraging wireless direct transmissions may be provided. It may be determined that data traffic flowing on a first pathway between a first client device and a second client device is not meeting a predetermined service level. The first pathway may be partially wired and partially wireless. A second pathway that will meet the predetermined service level may be determined. The second pathway may be wireless. The data traffic may be caused to flow on the second pathway.
    Type: Application
    Filed: June 2, 2023
    Publication date: May 16, 2024
    Applicant: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, J. P. Vasseur, Jerome Henry, Eric Levy-Abegnoli
  • Publication number: 20240163685
    Abstract: Broadcast operations by a selected subset of Access Points (APs) may be provided. A first plurality of APs to perform broadcast may be selected from a plurality of APs. Next, a plurality of client devices may be moved from a second plurality of APs to the first plurality of APs during a broadcast period. Then, the plurality of client devices may be moved to the second plurality of APs from the first plurality of APs after the broadcast period.
    Type: Application
    Filed: October 6, 2023
    Publication date: May 16, 2024
    Applicant: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric Michael Levy-Abegnoli, Jean Philippe Vasseur, Patrick Wetterwald, Jerome Henry
  • Publication number: 20240163005
    Abstract: Broadcast energy and spectrum consumption optimization may be provided. It may be determined, by a computing device for each of a plurality of client devices, a corresponding plurality of respective minimum Modulation and Coding Schemes (MCSs) needed to reach each of the respective plurality of client devices from the computing device at a predetermined power level. Next, an optimal MCS from the plurality of respective minimum MCSs may be used to reach a first group of the plurality of client devices via broadcast. Then unicast may be used to reach a second group of the plurality of client devices wherein the optimal MCS is selected to minimize the total amount of airtime used for the broadcast and the unicast.
    Type: Application
    Filed: June 13, 2023
    Publication date: May 16, 2024
    Applicant: Cisco Technology, Inc.
    Inventors: Pascal Thubert, J. P. Vasseur, Patrick Wetterwald, Eric Levy-Abegnoli, Jerome Henry
  • Patent number: 11941146
    Abstract: A container includes a user program and data generated by the user program within a regulatory jurisdiction. Before the container leaves the regulatory jurisdiction, the data is validated by the jurisdiction to ensure the data complies with privacy laws of the jurisdiction. Upon ingress to a second regulatory jurisdiction, the data is signed locally to provide for confirmation that the data can leave the second regulatory jurisdiction, since it was not generated within the second jurisdiction. By allowing the user program to move from the first regulatory jurisdiction to a second regulatory jurisdiction, the disclosed embodiments overcome limitations in current solutions that restrict access to local data based on what a public application programming interface (API) can provide. By operating within the regulatory jurisdiction, albeit subject to access controls imposed by that jurisdiction, flexibility in the processing of sensitive data is improved.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 26, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Patrick Wetterwald, Eric Levy- Abegnoli, Jonas Zaddach
  • Publication number: 20240098063
    Abstract: In one embodiment, a method includes identifying, using a Static Context Header Compression (SCHC) rules engine, one or more packets matching a rule, selecting a firewall decision based on the identified one or more packets and the rule, and applying the firewall decision to the one or more identified packets.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Inventors: Pascal Thubert, Jonas Zaddach, Patrick Wetterwald, Eric Levy-Abegnoli
  • Patent number: 11930541
    Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: March 12, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Domenico Ficara, Alessandro Erta, Amine Choukir, Patrick Wetterwald
  • Patent number: 11894939
    Abstract: Techniques are provided that validate a participant in a video conference. As a video conferencing system is remote from a video conference participant, and user devices are not trusted, traditional methods such as client side facial recognition are ineffective at validating a participant from a video conferencing system. Thus, the embodiments encode modulated data for projection onto a face of the participant. A video of the participant is then captured. The conferencing system then confirms that the modulated data is present in the captured video.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: February 6, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Patrick Wetterwald, Eric Levy- Abegnoli, Jonas Zaddach
  • Publication number: 20230413156
    Abstract: In one embodiment, an illustrative method herein may comprise: receiving, at a first edge device, a direct indication from a second edge device that a mobile device has moved from the first to the second edge device; determining, based on the direct indication, a first time at which the mobile device attached to the second edge device; receiving a network routing update message indicative of a routing update for the mobile device having moved to the second edge device; determining, based on the network routing update message, a second time at which convergence completed at the first edge device; and calculating a convergence time for the mobile device to be detected as having moved to the second edge device based on a difference between the first time and the second time.
    Type: Application
    Filed: May 20, 2022
    Publication date: December 21, 2023
    Inventors: Pascal Thubert, Eric LEVY-ABEGNOLI, Jonas ZADDACH, Patrick WETTERWALD
  • Patent number: 11838198
    Abstract: In one embodiment, a method comprises identifying, by a path computation element, essential parent devices from a nonstoring destination oriented directed acyclic graph (DODAG) topology as dominating set members belonging to a dominating set; receiving, by the path computation element, an advertisement message specifying a first dominating set member having reachability to a second dominating set member, the reachability distinct from the nonstoring DODAG topology; and generating, by the path computation element based on the advertisement message, an optimized path for reaching a destination network device in the nonstoring DODAG topology via a selected sequence of dominating set members, the optimized path providing cut-through optimization across the nonstoring DODAG topology.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: December 5, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Jean-Philippe Vasseur, Eric Michel Levy-Abegnoli
  • Publication number: 20230379250
    Abstract: In one embodiment, an illustrative method herein may comprise: receiving, at an access device for a network, a packet having a set of packet features; making, by the access device, a determination that the set of packet features of the packet match a forwarding ruleset that defines differentiated services for different types of packets based on their packet features; formulating, by the access device and based on the determination, a compressed header for the packet that has one or more differentiated service indicators based on the forwarding ruleset; and forwarding, from the access device, the packet with the compressed header, to cause forwarding decisions to be made within the network for the packet based on the one or more differentiated service indicators in its compressed header.
    Type: Application
    Filed: May 20, 2022
    Publication date: November 23, 2023
    Inventors: Pascal Thubert, Patrick WETTERWALD, Eric LEVY-ABEGNOLI, Jonas ZADDACH
  • Patent number: 11764912
    Abstract: In one embodiment, a method comprises: classifying, by a controller device, a first access point device in a WLAN as a leader access point for a wireless client device, and at least a second access point device as a follower access point; and allocating, to the leader access point, a shortened medium access control layer timer (“timer”) that is shorter than a prescribed timer used by the follower access point, the shortened timer causing the leader access point to respond to reception of a wireless data packet from the wireless client device by transmitting an acknowledgment to the wireless client device upon expiration of the shortened timer; the prescribed timer causing the follower access point to defer to the leader access point based on the follower access point waiting for at least expiration of the prescribed timer before selectively transmitting a corresponding acknowledgment in response to receiving the wireless data packet.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: September 19, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Jerome Henry, Malcolm Muir Smith, Mark Grayson, Patrick Wetterwald, Andrew Frederick Myles
  • Patent number: 11757827
    Abstract: Systems and methods may include sending, to a network registrar, an extended duplicate address request (EDAR) message including a first nonce generated by a host computing device, and receiving, from the network registrar, an extended duplicate address confirmation (EDAC) message including a second nonce and a first signature, a first nonce pair including the first nonce and the second nonce being signed by the network registrar via a first key pair of the network registrar via the first signature. The systems and methods may further include sending a first neighbor advertisement (NA) message to the host computing device including the second nonce. The second nonce and a public key of the network registrar verifies the first signature from the network registrar, the verification of the first signature indicating that a router through which the host computing device connects to a network is not impersonating the network.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: September 12, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric Levy-Abegnoli, Jonas Zaddach, Patrick Wetterwald
  • Publication number: 20230284211
    Abstract: In one embodiment, a controller for an overhead mesh of access points in an area receives an indication from one or more access points of the overhead mesh that a client device is present in the area. The controller determines movements of the client device within the area. The controller selects a set of access points of the overhead mesh to support communications between the client device and the overhead mesh, based on the movements of the client device determined by the controller. The controller causes the controller, the set of access points to form communication schedules to support communications with the client device that do not require a prior association exchange with the client device.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 7, 2023
    Inventors: Pascal Thubert, Alessandro Erta, Amine Choukir, Domenico Ficara, Patrick Wetterwald
  • Publication number: 20230284288
    Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 7, 2023
    Inventors: Pascal Thubert, Domenico FICARA, Alessandro ERTA, Amine CHOUKIR, Patrick WETTERWALD
  • Patent number: 11751156
    Abstract: In one embodiment, a method comprises: receiving, by a constrained wireless network device comprising a local clock, a plurality of messages from respective neighboring wireless network devices advertising as available parent devices in a directed acyclic graph of a time-synchronized network that is synchronized to a master clock device; determining, by the constrained wireless network device, a corresponding timing error of the local clock relative to each message output by the corresponding available parent device; and executing, by the constrained wireless network device, a distributed time synchronization of the local clock with the master clock device based on correlating the respective timing errors relative to the local clock.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: September 5, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Patrick Wetterwald, Jean-Philippe Vasseur, Eric Michel Levy-Abegnoli
  • Patent number: 11743174
    Abstract: In one embodiment, a particular device in a deterministic network performs classification of one or more packets of a traffic flow between a source and a destination in the deterministic network. The particular device determines, based on the classification of the one or more packets, a requirement of the traffic flow. The particular device performs, based on the requirement, a packet operation on at least one packet of the traffic flow. The particular device sends packets of the traffic flow towards the destination via two or more paths in the deterministic network.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: August 29, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Patrick Wetterwald, Eric Levy-Abegnoli, Pascal Thubert
  • Publication number: 20230268996
    Abstract: In one embodiment, a device registers with a controller for a mesh of overhead access points. The device receives, from the controller, a communication schedule for the device. The device generates a message to be sent to the mesh of overhead access points. The device transmits, according to the communication schedule, the message as a beam cone directed substantially upward relative to the device towards the mesh of overhead access points. The message is received and relayed by one or more particular access points in the mesh without the device previously performing a wireless association exchange with those one or more particular access points.
    Type: Application
    Filed: January 21, 2022
    Publication date: August 24, 2023
    Inventors: Pascal Thubert, Domenico FICARA, Patrick WETTERWALD, Alessandro ERTA, Amine CHOUKIR
  • Patent number: 11736393
    Abstract: Techniques for leveraging MLD capabilities at edge nodes of network fabrics to receive SNMAs from silent hosts, and creating unicast addresses from the SNMAs for the silent nodes that are used as secondary matches in a network overlay if primary unicast address lookups fail. The edge nodes described herein may act as snoopers of MLD reports in order to identify the SNMAs of the silent hosts. The edge nodes then forge unicast addresses for the silent hosts that match with the least three bytes of the SNMAs. The forged unicast addresses are presented as unicast MAC/IP mappings in the fabric overlay. In situations where a primary IP address lookup fails, the look-up device performs a secondary lookup for a mapped address that has the last three bytes of the IP address. If a mapping is found, the lookup is sent as a unicast message to the matching MAC address.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: August 22, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Pascal Thubert, Eric Levy-Abegnoli, Patrick Wetterwald