公开(公告)号：US20180091965A1

公开(公告)日：2018-03-29

申请号：US15696358

申请日：2017-09-06

Applicant: APPLE INC.

Inventor： Robert D. WATSON ,  Sriram HARIHARAN ,  Ganesha Adkasthala Ganapathi BATTA ,  Jason GILES

IPC: H04W8/00 ,  H04W4/00 ,  H04W52/02 ,  H04R1/10

CPC classification number: H04W8/005 ,  H04R1/1016 ,  H04R2420/07 ,  H04W4/08 ,  H04W4/80 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26

Abstract: Apparatuses, systems, and methods broadcast a device state in a wireless communication network. A wireless audio output device is configured to be paired with a second wireless device via a first piconet connection, wherein the second wireless device comprises a source of audio data to be output by the wireless audio output device. The wireless audio output device includes a processor configured to detect a change in the state of the wireless audio output device and set a transmission parameter of a broadcast transmission based at least in part on the detected change in the state and a transceiver configured to broadcast an advertising message to the second wireless device including information describing the wireless audio output device via the broadcast transmission.

公开(公告)号：US20180084485A1

公开(公告)日：2018-03-22

申请号：US15495430

申请日：2017-04-24

Applicant: Apple Inc.

Inventor： Sriram HARIHARAN

IPC: H04W48/08 ,  H04W4/00 ,  H04W76/02 ,  H04L12/24

CPC classification number: H04W76/10 ,  H04W4/80 ,  H04W8/005 ,  H04W48/12 ,  H04W56/002 ,  H04W84/14

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.

公开(公告)号：US20220338277A1

公开(公告)日：2022-10-20

申请号：US17661740

申请日：2022-05-02

Applicant: Apple Inc.

Inventor： 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

IPC: H04W76/10 ,  H04W4/80 ,  H04W4/48 ,  H04W4/40 ,  H04L67/12 ,  H04W12/0431 ,  H04W4/44

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).

公开(公告)号：US20210289498A1

公开(公告)日：2021-09-16

申请号：US16814512

申请日：2020-03-10

Applicant: Apple Inc.

Inventor： 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

IPC: H04W72/04 ,  H04W36/06 ,  H03H21/00 ,  H04L1/00 ,  H04B10/516

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.

公开(公告)号：US20190261174A1

公开(公告)日：2019-08-22

申请号：US16279961

申请日：2019-02-19

Applicant: Apple Inc.

Inventor： Mitchell D. ADLER ,  Yannick L. SIERRA ,  Ganesha A.G. BATTA ,  Michael GILES ,  Akshay M. SRIVATSA ,  Craig P. DOOLEY ,  Sriram HARIHARAN ,  Robert D. WATSON

IPC: H04W12/04 ,  H04L9/14 ,  H04L29/06 ,  H04L9/08

Abstract: Some embodiments provide a method for establishing a secured session with backward security between a first device and a second device. In some embodiments, the method establishes a communication session between the first and second devices using shared keys stored at the first and second devices. The method exchanges encrypted data between the first and second devices as a part of the communication session. The method, upon completion of the communication session, modifies the shared key at the first device in a predictable way. The shared key is modified at the second device in the same predictable way. The method then stores the modified shared key at the first device. The modified shared key cannot be used to decrypt any portion of the encrypted data of the current and previous communication sessions.

公开(公告)号：US20190104424A1

公开(公告)日：2019-04-04

申请号：US16146571

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Sriram HARIHARAN ,  Alon PAYCHER ,  Ran IRONY ,  Sreeraman ANANTHARAMAN ,  Robert D. SILFVAST

IPC: H04W24/02 ,  H04L5/00 ,  H04R3/12

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.

公开(公告)号：US20190104423A1

公开(公告)日：2019-04-04

申请号：US16146138

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Sriram HARIHARAN ,  Alon PAYCHER ,  Ran IRONY ,  Sreeraman ANANTHARAMAN ,  Robert D. SILFVAST

IPC: H04W24/02 ,  H04L12/26 ,  H04R3/12

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.

公开(公告)号：US20180288816A1

公开(公告)日：2018-10-04

申请号：US15883584

申请日：2018-01-30

Applicant: Apple Inc.

Inventor： Daniel R. BORGES ,  Sriram HARIHARAN ,  Matthew L. SEMERSKY ,  Michael J. GILES ,  Andre M. BOULE ,  Brian D. PIETSCH ,  Artiom SHAMIS ,  Ganesha Adkasthala GANAPATHI BATTA ,  Christopher R. WHITNEY ,  Tanya G. KANCHEVA ,  Friedrich W. DREES

IPC: H04W76/10 ,  H04L29/08 ,  H04W4/44 ,  H04W4/80 ,  H04W84/12

CPC classification number: H04W76/10 ,  H04W4/44 ,  H04W4/48 ,  H04W4/80 ,  H04W12/04031 ,  H04W48/08 ,  H04W84/12 ,  H04W88/06

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).

公开(公告)号：US20180205813A1

公开(公告)日：2018-07-19

申请号：US15920172

申请日：2018-03-13

Applicant: Apple Inc.

Inventor： Robert D. WATSON ,  Ganesha Adkasthala GANAPATHI BATTA ,  Anthony GUETTA ,  David John SHAW ,  Craig DOOLEY ,  Chris SAARI ,  Gregory NOVICK ,  Nathan DE VRIES ,  Sriram HARIHARAN ,  Patrick Ian BERNHARD ,  Dana MCLAUGHLIN ,  Jeffrey Chandler MOORE ,  Patrick Lee COFFMAN ,  Jonathan Anderson BENNETT ,  Deepak IYER ,  Albert Riley HOWARD, JR. ,  Jason CONN

IPC: H04M1/60 ,  H04W4/80 ,  H04W76/36 ,  H04W72/12 ,  H04R3/12 ,  H04W68/00 ,  H04R1/10 ,  H04W76/15 ,  H04R5/04 ,  H04R5/033

Abstract: Apparatus and methods to communicate audio data from either an active wireless device or a requesting wireless device to one or more audio reproduction devices that are simultaneously communicatively coupled to both the active wireless device and to the requesting wireless device are disclosed. Responsive to a request from the requesting wireless device to transmit audio data to the one or more audio reproduction devices, the active wireless device determines whether to transmit audio data from the requesting wireless device based at least in part on an audio status of the active wireless device and a set of predetermined arbitration criteria that prioritizes among applications and operating system processes that generate the audio data.

公开(公告)号：US20180084484A1

公开(公告)日：2018-03-22

申请号：US15270482

申请日：2016-09-20

Applicant: Apple Inc.

Inventor： Sriram HARIHARAN

IPC: H04W48/08 ,  H04L12/24 ,  H04W4/00 ,  H04W76/02

CPC classification number: H04W76/10 ,  H04W4/80 ,  H04W8/005 ,  H04W48/12 ,  H04W84/14

Abstract: Embodiments of the current disclosure facilitate the creation of a connection between a host device and an accessory device over a wireless network. 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 network. Each wireless beacon can contain information identifying a predetermined time when the accessory device will begin a page scan window. The accessory device can begin the page scan window at the predetermined time, and can then receive pages from a host device during the page scan window over the wireless network. The received page packets can then be subsequently used to establish an ad hoc network connection between the accessory device and the host device.