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公开(公告)号：US20200221359A1
公开(公告)日：2020-07-09
申请号：US16239358
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Dishant Srivastava , Mayank Batra , Steven Singer , Benjamin Campbell , Robin Heydon
Abstract: Methods, systems, and devices for wireless communications are described. One method may include determining that a quality condition of a primary Bluetooth-enabled device is lower than a quality condition of a secondary Bluetooth-enabled device. The primary Bluetooth-enabled device may transmit, to the secondary Bluetooth-enabled device, a handover request message based on the determining. The handover request message may include a subset of connection information associated with a connection between the primary Bluetooth-enabled device and a device in wireless communications with the primary Bluetooth-enabled device. The primary Bluetooth-enabled device may receive, from the secondary Bluetooth-enabled device, a handover response message based on the handover request message. As a result, the primary Bluetooth-enabled device may handover, to the secondary Bluetooth-enabled device, at least one logical transport channel of the set of logical transport channels based on the handover response message.
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公开(公告)号：US11115885B2
公开(公告)日：2021-09-07
申请号：US16389335
申请日：2019-04-19
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Dishant Srivastava , Ravi Shekhar
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for initiating, at a first wireless audio device, a handover interval including one or more extended synchronous connection-oriented (eSCO) windows, buffering a set of one or more audio (e.g., microphone) data packets during the handover interval, discarding at least a portion of the set of one or more audio data packets during the handover interval, receiving a handover indication from a second wireless audio device during an extended retransmission portion of a first eSCO window of the handover interval, and transmitting one or more audio data packets during a second eSCO window that is subsequent to the handover interval.
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公开(公告)号：US10785818B2
公开(公告)日：2020-09-22
申请号：US16136748
申请日：2018-09-20
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Ravi Shekhar , Dishant Srivastava
IPC: H04W76/15 , H04B17/318 , H04R3/12 , H04W76/14 , H04W84/18
Abstract: A first Bluetooth audio device paired with a second Bluetooth audio device may coordinate communications between the two BT audio devices. The first Bluetooth audio device may originally communication with the second BT audio device over a first type of Bluetooth connection. When the first Bluetooth audio device determines that the second Bluetooth audio device has left or is close to leaving the range of the first Bluetooth audio device, the first Bluetooth audio device may switch to communicating with the second Bluetooth audio device over a second type of Bluetooth connection or over a wireless mesh network. The first Bluetooth audio device may maintain a Bluetooth connection of the first type with a mobile device regardless of how the first Bluetooth audio device communicates with the second Bluetooth audio device.
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公开(公告)号：US11729861B2
公开(公告)日：2023-08-15
申请号：US17319329
申请日：2021-05-13
Applicant: QUALCOMM Incorporated
Inventor： Dishant Srivastava , Mayank Batra
CPC classification number: H04W84/20 , H04W36/30 , H04W52/0274 , H04W52/0296 , H04W76/14 , H04W76/23
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for fast role switching between master and slave roles among wireless nodes. In one aspect, wireless nodes, such as wireless earbuds, coupled to a wireless source, may dynamically and intelligently swap master and slave roles to optimize battery life in the wireless nodes.
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公开(公告)号：US20200336958A1
公开(公告)日：2020-10-22
申请号：US16389335
申请日：2019-04-19
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Dishant Srivastava , Ravi Shekhar
Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for initiating, at a first wireless audio device, a handover interval including one or more extended synchronous connection-oriented (eSCO) windows, buffering a set of one or more audio (e.g., microphone) data packets during the handover interval, discarding at least a portion of the set of one or more audio data packets during the handover interval, receiving a handover indication from a second wireless audio device during an extended retransmission portion of a first eSCO window of the handover interval, and transmitting one or more audio data packets during a second eSCO window that is subsequent to the handover interval.
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Patent Agency Ranking
公开(公告)号：US20200100307A1
公开(公告)日：2020-03-26
申请号：US16136748
申请日：2018-09-20
Applicant: QUALCOMM Incorporated
Inventor： Srivathsa Sridhara , Ravi Shekhar , Dishant Srivastava
IPC: H04W76/15 , H04B17/318 , H04W76/14 , H04R3/12
Abstract: A first Bluetooth audio device paired with a second Bluetooth audio device may coordinate communications between the two BT audio devices. The first Bluetooth audio device may originally communication with the second BT audio device over a first type of Bluetooth connection. When the first Bluetooth audio device determines that the second Bluetooth audio device has left or is close to leaving the range of the first Bluetooth audio device, the first Bluetooth audio device may switch to communicating with the second Bluetooth audio device over a second type of Bluetooth connection or over a wireless mesh network. The first Bluetooth audio device may maintain a Bluetooth connection of the first type with a mobile device regardless of how the first Bluetooth audio device communicates with the second Bluetooth audio device.
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公开(公告)号：US11115811B2
公开(公告)日：2021-09-07
申请号：US16375460
申请日：2019-04-04
Applicant: QUALCOMM incorporated
Inventor： Mayank Batra , Robin Heydon , Ravi Shekhar , Srivathsa Sridhara , Dishant Srivastava , Steven Singer , Nicholas Jones , Benjamin Campbell , Richard Cardoe , Laurence Richardson
Abstract: Two devices (e.g., two wireless Bluetooth earbuds) may exchange device address information (e.g., Bluetooth address information) and may identify a primary address. When either of the devices connect to a source device (e.g., a phone), the primary address may be used by the connecting device such that the pair of devices appear as a single device (e.g., a Bluetooth-pairable device) to the source device, regardless of the device connecting to the source device as the primary device. The primary device may then send identity information (e.g., that has been exchanged with the secondary device) to the source device, such that the source device may connect to either of the two devices. Further, once a primary device connects to the source device, the primary device may transmit, to the secondary device, connection information such that the secondary device may connect to the source device and operate in the primary role.
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公开(公告)号：US11013062B2
公开(公告)日：2021-05-18
申请号：US16401917
申请日：2019-05-02
Applicant: QUALCOMM Incorporated
Inventor： Dishant Srivastava , Mayank Batra
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for fast role switching between master and slave roles among wireless nodes. In one aspect, wireless nodes, such as wireless earbuds, coupled to a wireless source, may dynamically and intelligently swap master and slave roles to optimize battery life in the wireless nodes.
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公开(公告)号：US10979990B2
公开(公告)日：2021-04-13
申请号：US16421216
申请日：2019-05-23
Applicant: QUALCOMM Incorporated
Inventor： Dishant Srivastava , Steven Singer , Robin Heydon , Mayank Batra , Joel Linsky
Abstract: Methods, systems, and devices for wireless communications at a wireless audio device are described. A first (e.g., primary) wireless audio device may initiate a role switch procedure with a second (e.g., secondary) wireless audio device. The first wireless audio device may disable traffic flow between the source device and the first wireless audio device and transmit synchronization information and timing information necessary for taking over the role of primary wireless audio device to the second wireless audio device. The first wireless audio device may transmit a device role switch message, and the first wireless audio device and the second wireless audio device may perform the role switch. After performing the role switch, the first wireless audio device may assume the role of a secondary wireless audio device and the second wireless audio device may assume the role of a primary wireless audio device.
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公开(公告)号：US10368169B1
公开(公告)日：2019-07-30
申请号：US16102450
申请日：2018-08-13
Applicant: QUALCOMM Incorporated
Inventor： Joel Linsky , Dishant Srivastava , Neil Stewart
Abstract: Methods, systems, and devices for wireless communications are described. Generally the described techniques provide for establishing, by a first speaker a control communication link with a second speaker over a first piconet, receiving a signal during an extended synchronous connection-oriented (eSCO) window between a wireless device and the second speaker (e.g., one of a null signal, an acknowledgement (ACK) signal, or a negative acknowledgement (NACK) signal) switching from the second piconet to the first piconet based on the received communication, communicating with the second speaker on the first piconet, and closing the eSCO window based at least in part on the communication.
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