公开(公告)号：US11706555B2

公开(公告)日：2023-07-18

申请号：US16918944

申请日：2020-07-01

Applicant: Apple Inc.

Inventor： Kang Sun ,  Sriram Hariharan ,  Robert D. Watson ,  Sarang S. Ranade ,  Kevin Durfee

IPC: H04R1/10 ,  H04B5/00 ,  H04L65/60 ,  H04W4/80

CPC classification number: H04R1/1016 ,  H04B5/0006 ,  H04L65/60 ,  H04W4/80 ,  H04R2420/07

Abstract: A method performed by a programmed processor of an in-ear headphone that is to be worn by a user. The method obtains, over a wireless communication link and via a first wireless connection that uses an accessory profile, a first request, from an audio source device, to start a measurement process. In response to obtaining the request, the method 1) establishes, over the link, a second wireless connection that uses an audio distribution profile between the headphone and the source device, 2) obtains, via the second wireless connection, an audio signal for driving a speaker of the headphone to output sound, 3) responsive to the outputted sound, determining a fit parameter, and 4) transmitting the fit parameter to the source device via the first wireless connection.

公开(公告)号：US20230061200A1

公开(公告)日：2023-03-02

申请号：US17464482

申请日：2021-09-01

Applicant: Apple Inc.

Inventor： Langford M. Wasada ,  Arun Unkn ,  Andrew C. Chang ,  Sriram Hariharan ,  Robert W. Brumley ,  Raman S. Thiara

IPC: G06F1/3206 ,  G06F13/42 ,  H04B17/318

Abstract: Embodiments disclosed herein relate to reducing a power consumption of an electronic device while maintaining some functionality of the electronic device while the electronic device is in a low power mode. The device may be in the low power mode due to a battery level being below a threshold. If the battery level is below the threshold, the electronic device may enter the low power mode. However, before entering the low power mode, some functionality of an application processor may be transferred to a communication controller. Once the functionality is transferred, the application processor may be disabled to reduce power consumption while maintaining functionality of the application processor. The electronic device may also utilize various communication protocols to communicate with a peripheral device. Even though the electronic device may be in the low power mode, the communication controller may be used to cause the peripheral device to perform various actions.

公开(公告)号：US11522695B2

公开(公告)日：2022-12-06

申请号：US16982513

申请日：2019-03-19

Applicant: Apple Inc.

Inventor： Sriram Hariharan ,  Yannick L. Sierra ,  Frederic Jacobs

IPC: H04L9/32 ,  H04L9/08 ,  H04L9/40

Abstract: Techniques are disclosed relating to using a device to gain access to another system. In some embodiments, a first mobile device performs a pairing operation with a control unit that controls access to a system, the pairing operation including the first mobile device establishing a first cryptographic key with the control unit. The first mobile device receives a request to enable a second mobile device to communicate with the control unit, and in response to receiving the request, the first mobile device generates a second cryptographic key from the first cryptographic key. The first mobile device provides the second cryptographic key to the second mobile device. The second mobile device is configured to send a beacon including a payload encrypted with the second cryptographic key, and the encrypted payload is usable to authenticate the second mobile device to the control unit.

公开(公告)号：US11451931B1

公开(公告)日：2022-09-20

申请号：US17112376

申请日：2020-12-04

Applicant: Apple Inc.

Inventor： Sriram Hariharan ,  John D. Blackwell ,  Jonathan C. Shavit ,  Jay N. Bruins ,  Carter B. Peterson ,  Daniel E. Loffgren ,  Akifumi Kobashi ,  Jacob S. Weiss ,  Todd Wheeler

IPC: H04W4/029 ,  H04W4/38 ,  H04W76/10 ,  H04W56/00 ,  G06K9/62

Abstract: Immersive audio can be generated and/or updated in real-time as an accessory device presenting the audio is moved with respect to a computing device presenting accompanying video content. This real-time immersive audio is enabled by determining positions of the accessory device with respect to the computing device, based on real-time analysis of sensor information from the accessory device and the computing device. Accurate positions can be determined by synchronizing timestamped sensor data from the multiple devices through the use of a clock of a common wireless communication link (e.g., a Bluetooth connection), which may have lower drift than the global clocks of the devices themselves. Calculated offsets associated with differences between the clock of the wireless communication link and the global clocks of the multiple devices can be used to account for inaccuracies in the global clocks of the multiple devices with respect to one another.

公开(公告)号：US11324054B2

公开(公告)日：2022-05-03

申请号：US16579655

申请日：2019-09-23

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 ,  H04W88/06 ,  H04W48/08 ,  H04W84/12

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：US20210400388A1

公开(公告)日：2021-12-23

申请号：US17352661

申请日：2021-06-21

Applicant: Apple Inc.

Inventor： 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

IPC: H04R3/12 ,  G06F3/16

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.

公开(公告)号：US20210258418A1

公开(公告)日：2021-08-19

申请号：US17313194

申请日：2021-05-06

Applicant: Apple Inc.

Inventor： Brent M. Ledvina ,  Marc J. Krochmal ,  Robert W. Brumley ,  Sriram Hariharan

IPC: H04M1/72457 ,  G06F3/0481 ,  H04L9/30 ,  H04L29/06 ,  H04W4/02 ,  H04W4/12 ,  H04W8/18 ,  H04W12/06 ,  H04M1/72436 ,  H04W12/033

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.

公开(公告)号：US20210014596A1

公开(公告)日：2021-01-14

申请号：US16918944

申请日：2020-07-01

Applicant: Apple Inc.

Inventor： Kang Sun ,  Sriram Hariharan ,  Robert D. Watson ,  Sarang S. Ranade ,  Kevin Durfee

IPC: H04R1/10 ,  H04B5/00 ,  H04W4/80 ,  H04L29/06

Abstract: A method performed by a programmed processor of an in-ear headphone that is to be worn by a user. The method obtains, over a wireless communication link and via a first wireless connection that uses an accessory profile, a first request, from an audio source device, to start a measurement process. In response to obtaining the request, the method 1) establishes, over the link, a second wireless connection that uses an audio distribution profile between the headphone and the source device, 2) obtains, via the second wireless connection, an audio signal for driving a speaker of the headphone to output sound, 3) responsive to the outputted sound, determining a fit parameter, and 4) transmitting the fit parameter to the source device via the first wireless connection.

公开(公告)号：US20200351781A1

公开(公告)日：2020-11-05

申请号：US16878410

申请日：2020-05-19

Applicant: Apple Inc.

Inventor： Sriram Hariharan ,  Venkatesh Rajendran ,  Alon Paycher ,  Michael Jason Giles

IPC: H04W52/02 ,  H04W8/00 ,  H04W4/02 ,  H04W4/80

Abstract: A first device may communicate via a first wireless interface (WI) and a second WI, with the second WI operating at a relatively higher power level than the first WI. The first device may receive a scan notification corresponding to wireless scanning performed by a second device. The first device may subsequently perform wireless scanning using the second WI in response to the scan notification indicating that the first device is within effective communication range of a third device. The first device may receive the scan notification over a wireless connection established between the first device and the second device using the first WI. The first device may transmit filter information to the second device, the filter information indicating when, and for which scans the first device is to receive scan notifications. The first device may also activate the second WI and use the second WI to perform ranging and/or control operations associated with the third device.

公开(公告)号：US20200062217A1

公开(公告)日：2020-02-27

申请号：US16666838

申请日：2019-10-29

Applicant: Apple Inc.

Inventor： Brent M. Ledvina ,  Robert W. Brumley ,  Sriram Hariharan

IPC: B60R25/24 ,  H04W64/00 ,  H04W76/10 ,  H04W4/80 ,  H04W12/06 ,  H04W4/40 ,  H04W12/00 ,  H04W4/02 ,  H04W12/08 ,  G01S13/76 ,  H04L29/06

Abstract: Two different wireless protocols can be used for ranging between a mobile device and an access control system (e.g., a vehicle). The first wireless protocol (e.g., Bluetooth®) can be used to perform authentication of the vehicle and exchange ranging capabilities between a mobile device (e.g., a phone or watch) and the vehicle. The second wireless protocol (e.g., ultra-wideband, UWB) can use a pulse width that is less than a pulse width used by the first wireless protocol (e.g., 1 ns v. 1 μs). The narrower pulse width can provide greater accuracy for distance (ranging) measurements.