Apple Inc.

Padmavathy Bhooma

Cahya Adiansyah Masputra

Christopher M Garrido

Franco Travostino

Hsien-Po Shiang

Vincent Lubet

Erik Vladimir Ortega Gonzalez

Karthick Santhanam

Gurtej Singh G Chandok

Joe Liu

Sarma V Vangala

Daniel Ben Pollack

Hyeonkuk Jeong

David L Biderman

Ming Jin

Christoph Paasch

Bradley F Patterson

Kevin Arthur Robertson

Jingyao Zhang

Vu H Chiem

Chieh Lu

Gabriel Nava Marino

Venkateswara Rao Manepalli

Amit K Vyas

Joshua V Graessley

Luciano Miguel Verger

Thomas Francis Pauly

Qian Sun

Srinivas Pasupuleti

Albert S Liu

Bradley Ford

Geoffrey R Hall

Justin R Etzine

Devices, methods, and non-transitory program storage devices are disclosed to enable the automatic establishment of a secure audio/video data streaming connection between electronic devices. For example, a first electronic device may enter into a first state of a peer device advertising protocol, and then, based on a determination that the first electronic device meets a first set of device state criteria (e.g., including at least an orientation state criterion), the first electronic device may enter into a second (e.g., enhanced) state of the peer device advertising protocol. In response to detecting a presence of a second electronic device in its proximity, the first electronic device may connect to the second electronic device via a secure peer-to-peer connection protocol and then send one or more images captured by a first image capture device of the first electronic device to the connected second electronic device via the secure wireless peer-to-peer connection protocol.

Framework for automatically establishing secure connections for streaming audio and video data between devices based on device state criteria

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.

High frequency probing for network bandwidth estimation using video data in real-time video conference

A device implementing a system for multipath connection management may include first and second local communication interfaces, and a processor configured to establish a primary connection for communicating between the first local communication interface and a first remote communication interface of an other device, and a secondary connection for communicating between the second local communication interface and a second remote communication interface. The processor may be configured to transmit application and control data over the primary connection and concurrently transmit a copy of control data over the secondary connection. The processor may be configured to determine that a degradation of the quality of the primary connection is attributable to the other device. The processor may be configured to switch the secondary connection to the first local communication interface and the second remote communication interface. The processor may be configured to transmit a copy of the application and control data over the secondary connection.

Multi-path connection management

Adapting communication of information based on link-performance characteristics is discussed herein. For the example, an apparatus can include an interface circuit and a processor. The interface circuit communicates with an electronic device via a link. And the processor is communicatively coupled to the interface circuit. The interface circuit provides one or more performance metrics characterizing the link to the processor. And the processor adapts a communication with the electronic device via the link based on the one or more performance metrics.

Communication adaptation based on link-performance

Communication adaptation based on link-performance characteristics

Apparatus and methods for estimating data traffic characteristics for applications to condition data communication channels that support data packet transfer for the applications in wireless communication devices are disclosed. Data connections to support different applications and/or daemon software processes can be established and subsequently adjusted based on data traffic characteristics for data that the different applications/daemons generate and/or consume. Traffic flows for the applications/daemons are classified into traffic classes based on likely data traffic patterns. When data sources are added or deleted, changes to a traffic class state can be determined, and wireless circuitry adjusted based at least in part on the traffic class state and a traffic class policy. Adjusting parameters that affect the periodicity and/or length of active time periods and sleep periods in accordance with estimated data traffic patterns for applications/daemons that use the data connections can reduce power consumption by the wireless circuitry.

Methods and apparatus to estimate application data traffic characteristics to condition data communication channels

This disclosure relates to techniques for using wireless link information from baseband to trigger application data activity. According to some embodiments, wireless link information from baseband may be received at an application processor of a wireless device. The wireless link information may indicate whether the wireless link is in a connected state or an idle state. Network activity timing for one or more application network activity requests may be selected based at least in part on the wireless link information. The application network activity may be initiated for the one or more application network activity requests according to the selected network activity timing.

Use of baseband triggers to coalesce application data activity

In order to reduce latency associated with an application executed by an electronic device, when the application transitions from a runnable mode to a suspended state, the electronic device may receive a request from the application to maintain a connection, which is used by the application to communicate with another electronic device, while the application is in the suspended state. Then, the electronic device may provide an instruction to an interface circuit in the electronic device to maintain the connection for a time interval while the application is in the suspended state. This time interval may exceed a predefined timeout for the connection and/or a task extension time for the application. Moreover, prior to providing the instruction, the electronic device may confirm one or more system safeguards to prevent abuse and to ensure system performance and battery life is not adversely affected by maintaining the connection.

Maintaining network connections for background applications

The embodiments set forth techniques for avoiding network connectivity stalls at a mobile computing device. In an idle state, a performance analyzer executing on the mobile computing device is configured to passively analyze high-level network connectivity information to detect any minor issues with the network connectivity being provided by a primary interface (e.g., WiFi). When minor issues are detected, the mobile computing device transitions into an alerted state, where high emphasis is placed on using the WiFi interface and low emphasis is placed on using a secondary interface (e.g., Cellular). In the alerted state, the mobile computing device actively analyzes low-level connectivity information to detect any major issues with the WiFi interface. When major issues are detected, the mobile computing device transitions into a fallback state, where high emphasis is placed on using the Cellular interface and low emphasis is placed on using the WiFi interface.

Systems and methods for avoiding stalls in network connectivity at a computing device

Embodiments are presented herein of apparatuses, systems, and methods for selecting a RAT and coalescing application data activities for transmission using the RAT. A plurality of applications may be executed by a UE. During execution, the UE may receive a request to perform communication from each of the plurality of applications. Each request may include a deadline for performing the communication. The UE may further determine a RAT for performing the plurality of communications and schedule the plurality of communications. Scheduling may include combining the plurality of communications to be performed at a scheduled time using the RAT. Accordingly, the plurality of communications may be performed at the scheduled time using the RAT based on said scheduling.

Coalescing application data activity from multiple applications

The disclosed embodiments provide a system that facilitates use of a network link. During operation, the system continuously monitors an interarrival delay of packets received from a sender over the network link. Next, the system adjusts a receive window for the sender based on the interarrival delay to facilitate receipt of subsequent packets from the sender and other senders over the network link.

Reducing interarrival delays in network traffic

A method for receiving network packets on a client device comprising: initially entering into a first mode of operation in which polling from a network layer to a driver layer is disabled, wherein in the first mode of operations data packets received by the driver layer are pushed up to the network layer; monitoring a load factor defining a current network load on the client device; and entering into a second mode of operation in which polling from the network layer to the driver layer is enabled, wherein when in the second mode of operation, the network layer polling the driver layer when it is ready to accept new packets from the driver layer.

System and method for processing network packets received on a client device using opportunistic polling between networking layers

A data processing device for transmitting network packets comprising: packet classification logic for classifying packets according to different packet service classifications, wherein a packet to be transmitted is stored in one or more transmit queues based on the packet service classifications and wherein each packet is associated with a particular flow; and queue management logic for queuing packets in the one or more transmit queues utilizing a flow control policy implemented on a per-flow basis, wherein a number of queued packets for each flow is monitored and when the number of queued packets for a particular flow reaches a specified threshold, then flow control for that particular flow is turned on, and wherein the queue management logic implements a stochastic fair blue (SFB) algorithm to track the number of packets within each transmit queue.

Growing community of inventors

San Jose, CA, United States of America

Padmavathy Bhooma