Patents by Inventor Sriram Hariharan

Sriram Hariharan 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: 20220149890
    Abstract: Methods, systems, and apparatuses are presented to utilize Bluetooth (BT) radios to synchronize ultra wideband (UWB) radios, to allow the UWB radios to operate within narrow transmit/receive windows, which may lead to power savings. In some implementations, a transmitting UWB radio and a receiving UWB radio may synchronize the expected time of an UWB transmission based on BT events, such as receiving a BT advertisement, or establishing a BT connection. In some implementations, the transmitting UWB radio and the receiving UWB radio may synchronize the expected time of an UWB transmission based on synchronized event counters maintained by the BT radios. Information regarding UWB transmission start times may also be passed via BT communications, in some implementations.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Inventors: Sriram Hariharan, Langford M. Wasada
  • Patent number: 11324054
    Abstract: The embodiments set forth herein disclose techniques for enabling a user device to seamlessly establish a secure, high-bandwidth wireless connection with a vehicle accessory system to enable the user device to wirelessly stream user interface (UI) information to the vehicle accessory system. To implement this technique, a lower-bandwidth wireless technology (e.g., Bluetooth) is used as an initial means for establishing a Wi-Fi pairing between the user device and the vehicle accessory system. Wi-Fi parameters associated with a Wi-Fi network provided by the vehicle accessory system can be communicated to the user device using the lower-bandwidth wireless technology. A secure Wi-Fi connection can then be established between the user device and the vehicle accessory system using the provided Wi-Fi parameters. The embodiments also disclose a technique for enabling the user device to automatically reconnect with the vehicle accessory system in a seamless manner (e.g., when returning to a vehicle).
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Apple Inc.
    Inventors: Daniel R. Borges, Sriram Hariharan, Matthew L. Semersky, Michael J. Giles, Andre M. Boule, Brian D. Pietsch, Artiom Shamis, Ganesha Adkasthala Ganapathi Bata, Christopher R. Whitney, Tanya G. Kancheva, Friedrich W. Drees
  • Patent number: 11297453
    Abstract: Systems, methods, and non-transitory computer-readable storage media for performing a role swapping operation between a pair of non-tethered wireless ear buds after detecting a triggering event. Further, state information can be coordinated between devices, including in connection with performing a role swap between buds in a pair of wireless, untethered ear buds, where one wireless ear bud is in a primary role and is responsible for a connection with a companion device, and another wireless ear bud in the pair is in a secondary role.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 5, 2022
    Inventors: Sriram Hariharan, Ganesha Adkasthala Ganapathi Batta, Tad J. Dreier, Christopher S. Wiebe, Ashley N. Saulsbury, Duy N. Phan, David J. Shaw, Robert D. Watson, Augustin Prats
  • Publication number: 20220086613
    Abstract: Methods for aggregating Bluetooth profiles for faster connection and configuration are disclosed, including transmitting, subsequent to establishing a connection, a request message to a peer device that indicates support of a fast connection protocol for Bluetooth profiles configuration and receiving a response message from the peer device that indicates the peer device supports the fast connection protocol. After pairing with the peer device, a first list of profile descriptors for a plurality of Bluetooth profiles supported by the device may be transmitted to the peer device and a second list of profile descriptors for a plurality of Bluetooth profiles supported by the peer device may be received. A configuration of a plurality of Bluetooth profiles base, at least in part, on a comparison of the first list of profile descriptors to the second list of profile descriptors may be determined and transmitted to the peer device.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 17, 2022
    Inventors: Akshay Mangalam Srivatsa, Ariane Cotte, Craig P. Dooley, Duy N. Phan, Ganesha Adkasthala Ganapathi Batta, Hyundoo Shin, Kang Sun, Matt I. Gillette, Michael Jason Giles, Robert D. Watson, Sean P. Wilson, Sriram Hariharan, Sujatha Viswanathan, Todd Wheeler, Yilok L. Wong, David John Shaw, Sarang S. Ranade
  • Patent number: 11272553
    Abstract: Embodiments of the current disclosure facilitate the creation of a wireless connection between a host device and an accessory device over a wireless medium. For instance, according to some embodiments, a method of connecting an accessory device to a host device includes transmitting a plurality of advertising beacons over a wireless medium. Each wireless beacon can contain information identifying a predetermined time when the accessory device will begin a page scan. The accessory device can begin the page scan at the predetermined time and can receive pages from a host device during a page scan window of the page scan over the wireless medium. The received pages can then be subsequently used to establish an ad hoc network connection between the accessory device and the host device.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventor: Sriram Hariharan
  • Patent number: 11272556
    Abstract: Methods, systems, and apparatuses are presented to utilize Bluetooth (BT) radios to synchronize ultra wideband (UWB) radios, to allow the UWB radios to operate within narrow transmit/receive windows, which may lead to power savings. In some implementations, a transmitting UWB radio and a receiving UWB radio may synchronize the expected time of an UWB transmission based on BT events, such as receiving a BT advertisement, or establishing a BT connection. In some implementations, the transmitting UWB radio and the receiving UWB radio may synchronize the expected time of an UWB transmission based on synchronized event counters maintained by the BT radios. Information regarding UWB transmission start times may also be passed via BT communications, in some implementations.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Sriram Hariharan, Langford M. Wasada
  • Publication number: 20220070667
    Abstract: The presence of a wireless device and/or accessory that cannot maintain an independent network connection can be detected by network connected wireless devices and the location of the detected device and/or accessory can be reported to a device location service. As the wireless devices and/or accessories do not have independent network connections, periodic maintenance is performed on those devices by nearby owner devices to which the wireless devices and/or accessories are paired or associated. Described herein are systems, methods, and associated devices to maintain a locatable wireless device by a set of multiple owner devices for that wireless device.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 3, 2022
    Inventors: Kenneth U. Victa, Benjamin A. Detwiler, Nikhil Nilakantan, Todd Wheeler, Robert W. Mayor, Brent M. Ledvina, E. Thomas Erdmann, IV, Sriram Hariharan
  • Patent number: 11259192
    Abstract: Methods and apparatus for communicating audio packets with ultra-low latency at high data rates from an audio source device to one or more audio output devices over a wireless personal area network (WPAN) connection, such as via a Bluetooth connection. Latency is reduced by using time-efficient audio coding and decoding, limited retransmissions, reduced time and frequency of acknowledgements, and by combining Bluetooth Classic (BTC) packets for downlink audio and downlink control with Bluetooth Low Energy (BTLE) packets for uplink control, uplink acknowledgements, and inter-device wireless communication. The number of retransmissions and packet concealments per frame cycle can be limited to an upper threshold number to satisfy a low latency requirement.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 22, 2022
    Assignee: Apple Inc.
    Inventors: Sriram Hariharan, Alon Paycher, Ran Irony, Sreeraman Anantharaman, Robert D. Silfvast
  • Patent number: 11212803
    Abstract: Disclosed herein are system, method, and computer program product embodiments for synchronizing the switching of different wireless platforms to different portions of a frequency band. An embodiment, at a first wireless platform, operates by receiving a band switch request message from a second wireless platform, wherein the band switch request message comprises a band switch delay period for the second wireless platform. The embodiment calculates a band switch time based on a band switch delay period for the first wireless platform and the band switch delay period for the second wireless platform. The embodiment transmits a band switch accept message comprising the band switch time to the second wireless platform. The embodiment sets a first filter to operate on a second portion of the frequency band based on the band switch time. The embodiment then operates on the second portion of the frequency band.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: December 28, 2021
    Assignee: Apple Inc.
    Inventors: Adam B. Lapede, Daniel R. Borges, Mohammed W. Mokhtar, Helena D. O'Shea, Alon Paycher, Oren Shani, Matthew L. Semersky, Sriram Hariharan, Sreeraman Anantharaman, Khaye Loon Wei, Andrew D. Smart
  • Publication number: 20210400388
    Abstract: A system and method for routing communication to a common audio output device connected to each of two or more audio signal source devices. For each of the two or more audio signal source devices, a set of inputs are assessed. The set of inputs include: an operational state of the audio signal source device, an activity the audio signal source device, an audio-producing application being executed by the audio signal source device, and a degree of user activity with the audio-producing application being executed by the audio signal source. At a point in time, an audio routing score is generated for each of the two or more audio signal source devices according to a weighted calculation of the set of inputs based on the assessing. Finally, an audio signal routing decision is made, to route an audio signal from one of the two or more audio signal source devices to the audio output device, based on the audio routing score for each of the two or more audio signal source devices.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 23, 2021
    Inventors: Aarti Kumar, Bob Bradley, Natalia A. Fornshell, Deepak Iyer, Astrid Yi, Michael J. Giles, Sriram Hariharan, Kang Sun, Akshay Mangalam Srivatsa, Jonathan A. Bennett, Taylor G. Carrigan, Anthony J. Guetta
  • Publication number: 20210289498
    Abstract: Disclosed herein are system, method, and computer program product embodiments for synchronizing the switching of different wireless platforms to different portions of a frequency band. An embodiment, at a first wireless platform, operates by receiving a band switch request message from a second wireless platform, wherein the band switch request message comprises a band switch delay period for the second wireless platform. The embodiment calculates a band switch time based on a band switch delay period for the first wireless platform and the band switch delay period for the second wireless platform. The embodiment transmits a band switch accept message comprising the band switch time to the second wireless platform. The embodiment sets a first filter to operate on a second portion of the frequency band based on the band switch time. The embodiment then operates on the second portion of the frequency band.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 16, 2021
    Applicant: Apple Inc.
    Inventors: Adam B. LAPEDE, Daniel R. BORGES, Mohammed W. MOKHTAR, Helena D. O'SHEA, Alon PAYCHER, Oren SHANI, Matthew L. SEMERSKY, Sriram HARIHARAN, Sreeraman ANANTHARAMAN, Khaye Loon WEI, Andrew D. SMART
  • Publication number: 20210289346
    Abstract: This document describes techniques for detecting and providing user notification of mismatched devices. A device mismatch of a pair of wireless devices may be detected. A wireless indication of the device mismatch may be provided to another wireless device. That wireless device may provide a user notification that the pair of wireless devices are mismatched.
    Type: Application
    Filed: June 1, 2021
    Publication date: September 16, 2021
    Inventors: Michael Jason Giles, Ariane Cotte, Sriram Hariharan, Robert D. Watson, Sarang S. Ranade, David C. Graham
  • Patent number: 11109208
    Abstract: Methods for aggregating Bluetooth profiles for faster connection and configuration are disclosed, including transmitting, subsequent to establishing a connection, a request message to a peer device that indicates support of a fast connection protocol for Bluetooth profiles configuration and receiving a response message from the peer device that indicates the peer device supports the fast connection protocol. After pairing with the peer device, a first list of profile descriptors for a plurality of Bluetooth profiles supported by the device may be transmitted to the peer device and a second list of profile descriptors for a plurality of Bluetooth profiles supported by the peer device may be received. A configuration of a plurality of Bluetooth profiles base, at least in part, on a comparison of the first list of profile descriptors to the second list of profile descriptors may be determined and transmitted to the peer device.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Apple Inc.
    Inventors: Akshay Mangalam Srivatsa, Ariane Cotte, Craig P. Dooley, Duy N. Phan, Ganesha Adkasthala Ganapathi Batta, Hyundoo Shin, Kang Sun, Matt I. Gillette, Michael Jason Giles, Robert D. Watson, Sean P. Wilson, Sriram Hariharan, Sujatha Viswanathan, Todd Wheeler, Yilok L. Wong, David John Shaw, Sarang S. Ranade
  • Publication number: 20210258418
    Abstract: A mobile device can include ranging circuitry to determine distance to another mobile device. A first wireless protocol can establish an initial communication session to perform authentication and/or exchange ranging settings. A second protocol can perform ranging, and other wireless protocols can transmit content. In one example, the distance information can be used to display a relative position of another device on a user interface of a sending device. The user interface can allow a user to quickly and accurately select the recipient device for sending the data item. As other example, the distance information obtained from ranging can be used to trigger a notification (e.g., a reminder) to be output from a first mobile device or used to display a visual indicator on a receiving device. Proximity of a device (e.g., as determined by a distance) can be used to suggest recipient for a new communication.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 19, 2021
    Applicant: Apple Inc.
    Inventors: Brent M. Ledvina, Marc J. Krochmal, Robert W. Brumley, Sriram Hariharan
  • Publication number: 20210235251
    Abstract: A first wireless communication device (UE device) associated with a certain user (or included in a specified set/group of UE devices) may establish a first communication link with an accessory device according to a short-range radio access technology, and transmit link (pairing) information associated with the first communication link to a server, such as a cloud-based server. The server may share this (first) link information with other UE devices associated with the same user (or belonging to the same specified group of UE devices as the first UE device). Link information associated with the other UE devices (i.e. second link information) may equally be shared with the accessory device, and the other UE devices and accessory device may use the first link information and second link information in establishing respective communication links between any of the other UE devices and the accessory device without having to undergo a pairing procedure.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Inventors: Akshay Mangalam Srivatsa, Craig P. Dooley, David John Shaw, Ganesha Adkasthala Ganapathi Batta, Michael Jason Giles, Sriram Hariharan
  • Publication number: 20210185701
    Abstract: Communication between a source device and one or more pairs of accessory devices and between accessory devices within pairs of accessory devices is scheduled using slot availability masks (SAMs). A primary accessory device provides to the source device information about requirements for communication between the primary accessory device and a secondary accessory device. The source device determines a SAM map that specifies a periodic cycle of time slots, with time slots marked as available or unavailable for transmission and/or reception. The SAM map satisfies requirements to avoid collisions between communication between the source device and the accessory devices and communication between accessory devices within pairs of accessory devices. When multiple pairs of accessory devices establish connections with the source device, internal communication between accessory devices within pairs of accessory devices are aligned to use at least a common overlapping set of time slots.
    Type: Application
    Filed: November 9, 2020
    Publication date: June 17, 2021
    Inventors: Alon PAYCHER, Sriram HARIHARAN, Yonathan SHAVIT, Assaf KAPLAN
  • Patent number: 11026283
    Abstract: A client device can be configured to identify data to be communicated with a network. In some examples, the client device can determine one or more transient properties of the client device and/or receive a connection request from a host device that is connected to the network, where the connection request comprises one or more connection properties of the host device. In some instances, the client device can also be configured to determine whether the host device is capable of transmitting the data to the network based at least in part on the one or more transient properties of the client device and the one or more connection properties of the host device and/or establish a connection with the host device in accordance with determining that the host device is capable of transmitting the data to the network.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventors: Ajoy K. Singh, Dennis Mathews, Paul V. Flynn, Wen Zhao, Yong Liu, Syed Aon Mujtaba, Sriram Hariharan, Matthew L. Semersky
  • Patent number: 11026083
    Abstract: This document describes techniques for detecting and providing user notification of mismatched devices. A device mismatch of a pair of wireless devices may be detected. A wireless indication of the device mismatch may be provided to another wireless device. That wireless device may provide a user notification that the pair of wireless devices are mismatched.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventors: Michael Jason Giles, Ariane Cotte, Sriram Hariharan, Robert D. Watson, Sarang S. Ranade, David C. Graham
  • Patent number: 11019195
    Abstract: A mobile device can include ranging circuitry to determine distance to another mobile device. A first wireless protocol can establish an initial communication session to perform authentication and/or exchange ranging settings. A second protocol can perform ranging, and other wireless protocols can transmit content. In one example, the distance information can be used to display a relative position of another device on a user interface of a sending device. The user interface can allow a user to quickly and accurately select the recipient device for sending the data item. As other example, the distance information obtained from ranging can be used to trigger a notification (e.g., a reminder) to be output from a first mobile device or used to display a visual indicator on a receiving device. Proximity of a device (e.g., as determined by a distance) can be used to suggest recipient for a new communication.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: May 25, 2021
    Assignee: Apple Inc.
    Inventors: Brent M. Ledvina, Marc J. Krochmal, Robert W. Brumley, Sriram Hariharan
  • Publication number: 20210127329
    Abstract: A first device is configured to establish a connection over a short-range communication link with a second device. The first device may transition to a sleep state, terminate (i) a paging operation and a page scanning operation associated with a paging protocol and (ii) an advertisement scanning operation associated with an advertisement protocol and perform an advertisement broadcast operation associated with the advertisement protocol, the advertisement broadcast operation generating an advertisement to be broadcast at a first interval, wherein the first interval is greater than a second interval for performing advertisement broadcast operations in an active state.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 29, 2021
    Inventors: David SHAW, Ariane COTTE, Alon PAYCHER, Robert WATSON, Gregory BURNS, Chandrahas Aralaguppe CHANDRAMOHAN, Sriram HARIHARAN, Jonathan SHAVIT, Adir EINI