Patents by Inventor Christoph Paasch
Christoph Paasch 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).
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Patent number: 11968275Abstract: A server network accepts asynchronous notification messages from multiple application servers and efficiently routes notification messages in the form of notification taps to a user device, which can operate in a low power mode. The user device may or may not be a cellular device. The server network maintains states for the user devices in terms of identifiers useful for routing. A network server proximate to the user device registers the identifiers useful for routing the notifications. When the server network receives a notification from a source application, the proximate network server determines a routing based on the registration and sends a notification tap to the user device. The user device can obtain notification content sourced by the source application. The user device can delegate the role of receiving notification taps to a delegate device, where the delegate device may have wall-power and/or a wired or wireless network connection.Type: GrantFiled: July 13, 2021Date of Patent: April 23, 2024Assignee: Apple Inc.Inventors: Christopher M. Bell, Christoph Paasch
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Publication number: 20240129253Abstract: A client device in a wireless network accesses a queue comprising Transmission Control Protocol Acknowledgement (TCP ACK) packets. At least some packets include packet descriptors with a flow identifier indicating a corresponding TCP flow, and a TCP ACK Generation Count. The device inspects a packet descriptor of a first TCP ACK packet, and identifies a first flow identifier and a first TCP ACK Generation Count. The device accesses entries in a data structure that each includes a first field and a second field respectively storing a flow identifier and a TCP ACK Generation Count. The device determines that a condition is satisfied, comprising that an entry in the data structure includes a flow identifier and a TCP ACK Generation Count matching the first flow identifier and the first TCP ACK Generation Count, respectively. In response to the determination, the device marks the first TCP ACK packet to be dropped.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Martin Kugler, Cahya A. Masputra, Christoph Paasch, Hans Jürgen Steffen, Murtaza A. Shikari, Vijay Venkataraman
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Patent number: 11876719Abstract: A client device in a wireless network accesses a queue comprising Transmission Control Protocol Acknowledgement (TCP ACK) packets, at least some of which include packet descriptors, each with a flow identifier indicating a TCP flow associated with the packet, and a TCP ACK Generation Count. The device inspects a packet descriptor of a first TCP ACK packet, and identifies a first flow identifier and a first TCP ACK Generation Count. The device accesses entries in a data structure that each includes a first field and a second field respectively storing a flow identifier and a TCP ACK Generation Count. The device determines that a first entry in the data structure includes a flow identifier and a TCP ACK Generation Count matching the first flow identifier and the first TCP ACK Generation Count, respectively. In response to the determination, the device marks the first TCP ACK packet to be dropped.Type: GrantFiled: June 28, 2022Date of Patent: January 16, 2024Assignee: Apple Inc.Inventors: Vijay Venkataraman, Cahya A. Masputra, Christoph Paasch, Martin Kugler, Hans Jürgen Steffen
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Publication number: 20230283538Abstract: The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.Type: ApplicationFiled: May 10, 2023Publication date: September 7, 2023Inventors: Hsien-Po Shiang, Ming Jin, Gabriel Nava Marino, Gurtej Singh G. Chandok, Hyeonkuk Jeong, Padmavathy Bhooma, Christoph Paasch, Christopher M. Garrido, David L. Biderman, Erik Vladimir Ortega Gonzalez
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Patent number: 11652722Abstract: The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.Type: GrantFiled: June 17, 2021Date of Patent: May 16, 2023Assignee: APPLE INC.Inventors: Hsien-Po Shiang, Ming Jin, Gabriel Nava Marino, Gurtej Singh G. Chandok, Hyeonkuk Jeong, Padmavathy Bhooma, Christoph Paasch, Christopher M. Garrido, David L. Biderman, Erik Vladimir Ortega Gonzalez
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Publication number: 20230023893Abstract: A client device in a wireless network accesses a queue comprising Transmission Control Protocol Acknowledgement (TCP ACK) packets, at least some of which include packet descriptors, each with a flow identifier indicating a TCP flow associated with the packet, and a TCP ACK Generation Count. The device inspects a packet descriptor of a first TCP ACK packet, and identifies a first flow identifier and a first TCP ACK Generation Count. The device accesses entries in a data structure that each includes a first field and a second field respectively storing a flow identifier and a TCP ACK Generation Count. The device determines that a first entry in the data structure includes a flow identifier and a TCP ACK Generation Count matching the first flow identifier and the first TCP ACK Generation Count, respectively. In response to the determination, the device marks the first TCP ACK packet to be dropped.Type: ApplicationFiled: June 28, 2022Publication date: January 26, 2023Inventors: Vijay Venkataraman, Cahya A. Masputra, Christoph Paasch, Martin Kugler, Hans Jürgen Steffen
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Patent number: 11277463Abstract: Apparatuses, systems, and methods for a wireless device to perform data stall mitigation. The wireless device may establish, at an HTTP layer of the wireless device, a data connection over a first network interface of the wireless device. The wireless device may compare an available duration of data in a data buffer associated with the data connection to a first threshold and notify, in response to the available duration approaching the first threshold, at least one lower layer of the wireless device of an emergency deadline. At least one lower layer may perform one or more remedial actions to avoid and/or mitigate a data stall.Type: GrantFiled: March 30, 2020Date of Patent: March 15, 2022Assignee: Apple Inc.Inventors: Alan Tseng, Franco Travostino, Christoph Paasch, Vijay Venkataraman, Scott M. Marshall, Thomas F. Pauly, Darren S. Litzinger
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Publication number: 20210399971Abstract: The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.Type: ApplicationFiled: June 17, 2021Publication date: December 23, 2021Inventors: Hsien-Po Shiang, Ming Jin, Gabriel Nava Marino, Gurtej Singh G. Chandok, Hyeonkuk Jeong, Padmavathy Bhooma, Christoph Paasch, Christopher M. Garrido, David L. Biderman, Erik Vladimir Ortega Gonzalez
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Publication number: 20210391950Abstract: Techniques are provided for managing cross-layer transport awareness of a user space protocol stack. A protocol layer of a user space protocol stack within a user space application operated in a user space of a first device can receive a batch of packets of a data flow from a corresponding protocol layer operated by a second device. The protocol layer can process a group of packets in the batch of packets to generate a set of acknowledgement packets of the data flow, and process an additional packet in the batch of packets to generate an additional acknowledgement packet of the data flow. The additional acknowledgement packet is indicated to supersede the set of acknowledgement packets. The protocol layer can transmit the additional acknowledgement packet to the second device to indicate that both the group of packets and the additional packet have been received by the first device.Type: ApplicationFiled: June 11, 2021Publication date: December 16, 2021Applicant: Apple Inc.Inventors: Christoph PAASCH, Cayha Adiansyah MASPUTRA
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Publication number: 20210344767Abstract: A server network accepts asynchronous notification messages from multiple application servers and efficiently routes notification messages in the form of notification taps to a user device, which can operate in a low power mode. The user device may or may not be a cellular device. The server network maintains states for the user devices in terms of identifiers useful for routing. A network server proximate to the user device registers the identifiers useful for routing the notifications. When the server network receives a notification from a source application, the proximate network server determines a routing based on the registration and sends a notification tap to the user device. The user device can obtain notification content sourced by the source application. The user device can delegate the role of receiving notification taps to a delegate device, where the delegate device may have wall-power and/or a wired or wireless network connection.Type: ApplicationFiled: July 13, 2021Publication date: November 4, 2021Inventors: Christopher M. BELL, Christoph PAASCH
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Patent number: 11095738Abstract: A server network accepts asynchronous notification messages from multiple application servers and efficiently routes notification messages in the form of notification taps to a user device, which can operate in a low power mode. The user device may or may not be a cellular device. The server network maintains states for the user devices in terms of identifiers useful for routing. A network server proximate to the user device registers the identifiers useful for routing the notifications. When the server network receives a notification from a source application, the proximate network server determines a routing based on the registration and sends a notification tap to the user device. The user device can obtain notification content sourced by the source application. The user device can delegate the role of receiving notification taps to a delegate device, where the delegate device may have wall-power and/or a wired or wireless network connection.Type: GrantFiled: June 20, 2017Date of Patent: August 17, 2021Assignee: Apple Inc.Inventors: Christopher M. Bell, Christoph Paasch
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Patent number: 10979355Abstract: This disclosure relates to techniques for providing a multipath transmission control protocol proxy in a cellular network. A wireless device may establish a wireless link with a cellular network. The wireless device may provide an indication that the wireless device is multipath transmission control protocol (MPTCP) capable to a core network entity of the cellular network. The wireless device may receive MPTCP proxy information for a MPTCP proxy comprised in the cellular network from the core network entity. The MPTCP proxy information may include MPTCP server IP address and port information. The wireless device may establish a first MPTCP flow with the MPTCP proxy comprised in the cellular network via the wireless link.Type: GrantFiled: March 26, 2019Date of Patent: April 13, 2021Assignee: Apple Inc.Inventors: Krisztian Kiss, Christoph Paasch, Farouk Belghoul, Sarma V. Vangala, Rohan C. Malthankar
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Publication number: 20200383012Abstract: Apparatuses, systems, and methods for a wireless device to perform data stall mitigation. The wireless device may establish, at an HTTP layer of the wireless device, a data connection over a first network interface of the wireless device. The wireless device may compare an available duration of data in a data buffer associated with the data connection to a first threshold and notify, in response to the available duration approaching the first threshold, at least one lower layer of the wireless device of an emergency deadline. At least one lower layer may perform one or more remedial actions to avoid and/or mitigate a data stall.Type: ApplicationFiled: March 30, 2020Publication date: December 3, 2020Inventors: Alan Tseng, Franco Travostino, Christoph Paasch, Vijay Venkataraman, Scott M. Marshall, Thomas F. Pauly, Darren S. Litzinger
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Publication number: 20190306068Abstract: This disclosure relates to techniques for providing a multipath transmission control protocol proxy in a cellular network. A wireless device may establish a wireless link with a cellular network. The wireless device may provide an indication that the wireless device is multipath transmission control protocol (MPTCP) capable to a core network entity of the cellular network. The wireless device may receive MPTCP proxy information for a MPTCP proxy comprised in the cellular network from the core network entity. The MPTCP proxy information may include MPTCP server IP address and port information. The wireless device may establish a first MPTCP flow with the MPTCP proxy comprised in the cellular network via the wireless link.Type: ApplicationFiled: March 26, 2019Publication date: October 3, 2019Inventors: Krisztian Kiss, Christoph Paasch, Farouk Belghoul, Sarma V. Vangala, Rohan C. Malthankar
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Patent number: 10433213Abstract: Described herein are apparatus, systems and methods for adaptive segment size for data transmissions. A method may comprise, at a user equipment (“UE”), identifying a current size setting of a data segment (e.g., a transmission control protocol (“TCP”) maximum segment size (“MSS”)) for communication over a network, receiving current physical layer conditions, receiving historical data, and adjusting the current size setting based on at least one of the current physical layer conditions and the historical data.Type: GrantFiled: June 9, 2016Date of Patent: October 1, 2019Assignee: Apple Inc.Inventors: Sarma Vangala, Srinivas Pasupuleti, Padma Bhooma, Christoph Paasch, Cahya A Masputra, Rafael Rivera-Barreto
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Patent number: 10397379Abstract: Robust Multipath TCP Stateless Connection Establishment.Type: GrantFiled: March 4, 2016Date of Patent: August 27, 2019Assignee: Apple Inc.Inventors: Christoph Paasch, Anumita Biswas, Darren Haas
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Patent number: 10110641Abstract: A data transfer connection between a device and another device can be established using a basic protocol having a multipath extension that allows for the data transfer connection to use several different paths in parallel. In establishing the data transfer connection, an intermediate device receives a connection request from the device. This connection request comprises an indication that the device is capable of handling the multipath extension. In addition, the connection request comprises an identification of the other device with which the data transfer connection is to be established. The intermediate device then determines whether the other device is capable of handling the multipath extension, or not. The intermediate device establishes the data transfer connection in accordance with the multipath extension if the other device is capable of handling the multipath extension.Type: GrantFiled: December 8, 2014Date of Patent: October 23, 2018Assignee: UNIVERSITE CATHOLIQUE DE LOUVAINInventors: Gregory Detal, Olivier Bonaventure, Christoph Paasch
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Publication number: 20180124195Abstract: A server network accepts asynchronous notification messages from multiple application servers and efficiently routes notification messages in the form of notification taps to a user device, which can operate in a low power mode. The user device may or may not be a cellular device. The server network maintains states for the user devices in terms of identifiers useful for routing. A network server proximate to the user device registers the identifiers useful for routing the notifications. When the server network receives a notification from a source application, the proximate network server determines a routing based on the registration and sends a notification tap to the user device. The user device can obtain notification content sourced by the source application. The user device can delegate the role of receiving notification taps to a delegate device, where the delegate device may have wall-power and/or a wired or wireless network connection.Type: ApplicationFiled: June 20, 2017Publication date: May 3, 2018Inventors: Christopher M. BELL, Christoph PAASCH
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Publication number: 20170359756Abstract: Described herein are apparatus, systems and methods for adaptive segment size for data transmissions. A method may comprise, at a user equipment (“UE”), identifying a current size setting of a data segment (e.g., a transmission control protocol (“TCP”) maximum segment size (“MSS”)) for communication over a network, receiving current physical layer conditions, receiving historical data, and adjusting the current size setting based on at least one of the current physical layer conditions and the historical data.Type: ApplicationFiled: June 9, 2016Publication date: December 14, 2017Inventors: Sarma Vangala, Srinivas Pasupuleti, Padma Bhooma, Christoph Paasch, Cahya A. Masputra, Rafael Rivera-Barretto
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Publication number: 20160315976Abstract: A data transfer connection between a device and another device can be established using a basic protocol having a multipath extension that allows for the data transfer connection to use several different paths in parallel. In establishing the data transfer connection, an intermediate device receives a connection request from the device. This connection request comprises an indication that the device is capable of handling the multipath extension. In addition, the connection request comprises an identification of the other device with which the data transfer connection is to be established. The intermediate device then determines whether the other device is capable of handling the multipath extension, or not. The intermediate device establishes the data transfer connection in accordance with the multipath extension if the other device is capable of handling the multipath extension.Type: ApplicationFiled: December 8, 2014Publication date: October 27, 2016Inventors: Gregory DETAL, Olivier BONAVENTURE, Christoph PAASCH