Patents by Inventor Chikan Kwan
Chikan Kwan 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).
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Patent number: 11696109Abstract: Techniques are described for interference reductions using, e.g., a Received Signal Strength Indicator (RSSI) or packet error rate threshold. User Equipment that implements these techniques may reduce interference among personal area network enabled devices, for example, with the added benefit of reducing power consumption by reduced radio frequency transmissions. By reducing interference, the performance of personal area network devices may be improved.Type: GrantFiled: January 25, 2021Date of Patent: July 4, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
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Patent number: 11678163Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: GrantFiled: March 1, 2021Date of Patent: June 13, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Xianbo Chen, Chikan Kwan, Shawn Ding
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Patent number: 11134534Abstract: An apparatus includes multiple radio-frequency (RF) circuits, a number of Bluetooth (BT) cores and a processor. The BT cores are coupled to the plurality of RF circuits. The processor is coupled to the BT cores to control operations of the RF circuits and the BT cores. The RF circuits, the BT cores and the processor are implemented as a system on a chip (SoC). Controlling the operations of the RF circuits and the BT cores can be performed by controlling register spaces associated with the RF circuits and the BT cores.Type: GrantFiled: April 10, 2018Date of Patent: September 28, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Shawn Ding, Chikan Kwan, Hea Joung Kim, David Lee Recker, Brandon Bongkee Bae, Yuan Zhuang, Guoxin Xie, Seema B. Anand, John S. Walley
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Publication number: 20210185502Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: ApplicationFiled: March 1, 2021Publication date: June 17, 2021Inventors: Xianbo CHEN, Chikan KWAN, Shawn DING
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Publication number: 20210144541Abstract: Techniques are described for interference reductions using, e.g., a Received Signal Strength Indicator (RSSI) or packet error rate threshold. User Equipment that implements these techniques may reduce interference among personal area network enabled devices, for example, with the added benefit of reducing power consumption by reduced radio frequency transmissions. By reducing interference, the performance of personal area network devices may be improved.Type: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
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Patent number: 10966074Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: GrantFiled: January 4, 2019Date of Patent: March 30, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Xianbo Chen, Chikan Kwan, Shawn Ding
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Patent number: 10904738Abstract: Techniques are described for interference reduction using, e.g., a Received Signal Strength Indicator (RSSI) or packet error rate threshold. UEs that implement these techniques may reduce interference among personal area network enabled devices, for example, with the added benefit of reducing power consumption by reduced RF transmissions. By reducing interference, the performance of personal area network devices may be improved.Type: GrantFiled: October 26, 2018Date of Patent: January 26, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
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Patent number: 10645735Abstract: In some aspects, the disclosure is directed to methods and systems for an enhanced data rate, low energy wireless communication. Devices may communicate over predetermined wireless bands such as the 2.4 GHz and 5 GHz ISM bands, using ?/4-differential quadrature phase shift keying, with physical layer rates of 1, 2, 4, 8 Mbps or higher. Symbol timing may be at any frequency, and may be 256 ns in some implementations. In some implementations, to extend device battery life, devices may use a low latency reconnect mechanism allowing frequent hibernation or shutdown of transmitters and/or carriers.Type: GrantFiled: March 14, 2018Date of Patent: May 5, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Shawn Ding, Chikan Kwan, Guoxin Xie, David Lee Recker, Brandon B. Bae, Hea Joung Kim, Seema B. Anand, Yuan Zhuang, Siukai Mak
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Publication number: 20190141505Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: ApplicationFiled: January 4, 2019Publication date: May 9, 2019Applicant: Avago Technologies International Sales Pte. LimitedInventors: Xianbo CHEN, Chikan KWAN, Shawn DING
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Publication number: 20190124712Abstract: An apparatus includes multiple radio-frequency (RF) circuits, a number of Bluetooth (BT) cores and a processor. The BT cores are coupled to the plurality of RF circuits. The processor is coupled to the BT cores to control operations of the RF circuits and the BT cores. The RF circuits, the BT cores and the processor are implemented as a system on a chip (SoC). Controlling the operations of the RF circuits and the BT cores can be performed by controlling register spaces associated with the RF circuits and the BT cores.Type: ApplicationFiled: April 10, 2018Publication date: April 25, 2019Inventors: Shawn DING, Chikan KWAN, Hea Joung KIM, David Lee RECKER, Brandon Bongkee BAE, Yuan ZHUANG, Guoxin XIE, Seema B. ANAND, John S. WALLEY
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Publication number: 20190069157Abstract: Techniques are described for interference reduction using, e.g., a Received Signal Strength Indicator (RSSI) or packet error rate threshold. UEs that implement these techniques may reduce interference among personal area network enabled devices, for example, with the added benefit of reducing power consumption by reduced RF transmissions. By reducing interference, the performance of personal area network devices may be improved.Type: ApplicationFiled: October 26, 2018Publication date: February 28, 2019Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
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Patent number: 10206084Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: GrantFiled: January 27, 2017Date of Patent: February 12, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Xianbo Chen, Chikan Kwan, Shawn Ding
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Patent number: 10158987Abstract: Techniques are described for interference reduction using, e.g., a Received Signal Strength Indicator (RSSI) or packet error rate threshold. UEs that implement these techniques may reduce interference among personal area network enabled devices, for example, with the added benefit of reducing power consumption by reduced RF transmissions. By reducing interference, the performance of personal area network devices may be improved.Type: GrantFiled: May 28, 2014Date of Patent: December 18, 2018Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
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Publication number: 20180270876Abstract: In some aspects, the disclosure is directed to methods and systems for an enhanced data rate, low energy wireless communication. Devices may communicate over predetermined wireless bands such as the 2.4 GHz and 5 GHz ISM bands, using ?/4-differential quadrature phase shift keying, with physical layer rates of 1, 2, 4, 8 Mbps or higher. Symbol timing may be at any frequency, and may be 256 ns in some implementations. In some implementations, to extend device battery life, devices may use a low latency reconnect mechanism allowing frequent hibernation or shutdown of transmitters and/or carriers.Type: ApplicationFiled: March 14, 2018Publication date: September 20, 2018Applicant: Avago Technologies General IP (Singapore) Pte. Ltd .Inventors: Shawn DING, Chikan KWAN, Guoxin XIE, David Lee RECKER, Brandon B. BAE, Hea Joung KIM, Seema B. ANAND, Yuan ZHUANG, Siukai MAK
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Patent number: 10044601Abstract: A multi-cast multi-poll scheme for BLUETOOTH low energy (BLE) technology to be used by one or more mobile devices within a communication environment is disclosed. A broadcaster communication device comprises a transceiver that is configured to communicate with a plurality of recipient communication devices. The broadcaster communication device further comprises a controller that is configured to transmit a packet to the plurality of recipient communication devices and to receive, at predefined time intervals, responses from the plurality of recipient communication devices according to a pre-negotiated order without transmitting any additional packets.Type: GrantFiled: March 31, 2016Date of Patent: August 7, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Guoxin Xie, Chikan Kwan, Shawn Ding, Jun Guo, Yuan Zhuang
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Publication number: 20180184234Abstract: A power-efficient, balanced, and reliable true wireless Bluetooth stereo audio solution is provided. Two audio sink devices are used to render audio content received from an audio source. One sink device is connected to the audio source via a primary link. The other sink device sniffs communication on the primary link. The two sink devices are connected via a hybrid link. In some embodiments, a token is passed dynamically between the two sink devices. The sink device that has the token acts as a primary sink device on a primary link with the source. The other sink device acts as a slave to the primary link.Type: ApplicationFiled: January 27, 2017Publication date: June 28, 2018Applicant: Avago Technologies General IP (Singapore) Pte. Ltd .Inventors: Xianbo Chen, Chikan Kwan, Shawn Ding
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Patent number: 9918293Abstract: A monitoring device may monitor its proximity to a monitored station. The monitored station may transmit a proximity indicator to the monitoring device. For example, the proximity indicator may include the received signal strength of a signal sent by the monitored station. Wireless interface control circuitry at the monitoring device may monitor the status of the proximity indicator for changes. If one or more criteria set by an application processor are met by a detected change, the wireless interface control circuitry may send a status update to the application processor. In the criteria are not met, generation of the status update may be forgone. The application processor need not monitor the proximity indicator status and may remain in a reduced power consumption mode for longer periods.Type: GrantFiled: May 28, 2014Date of Patent: March 13, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Lih-Feng Tsaur, Angel Polo, Chikan Kwan, Erik John Rivard, Arthur Jin, Xin Tian, Chaojing Sun
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Patent number: 9706496Abstract: A technique to open a single receiving window to perform scanning and initiating operations in a Bluetooth Low Energy compliant device, instead of using two separate receiving windows to perform the equivalent operations. The combining of the scanning and initiating operations in one receiving window, instead of two separate windows, reduces power consumption and provides for bandwidth efficiency.Type: GrantFiled: October 31, 2011Date of Patent: July 11, 2017Assignee: Avago Technologies General IP (Singapore) Pte. LtdInventors: Angel Polo, Yuan Zhuang, Chikan Kwan, Guoxin Xie, Arthur Jin, Cindy (Xin) Tian
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Publication number: 20170141999Abstract: A multi-cast multi-poll scheme for Bluetooth law energy (BLE) technology to be used by one or more mobile devices within a communication environment is disclosed. A broadcaster communication device comprises a transceiver that is configured to communicate with a plurality of recipient communication devices. The broadcaster communication device further comprises a controller that is configured to transmit a packet to the plurality of recipient communication devices and to receive, at predefined time intervals, responses from the plurality of recipient communication devices according to a pre-negotiated order without transmitting any additional packets.Type: ApplicationFiled: March 31, 2016Publication date: May 18, 2017Applicant: Broadcom CorporationInventors: Guoxin XIE, Chikan KWAN, Shawn DING, Jun GUO, Yuan ZHUANG
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Patent number: 9516690Abstract: A wireless communication device includes a wireless charging circuit configurable to receive a wireless power signal from a power transmitting unit and to charge the wireless communication device under control of a processing device and in conjunction with a charging session with the power transmitting unit. A wireless interface device operates under control of the processing device to establish a wireless connection with the power transmitting unit via a connection establishment procedure, wherein the wireless connection is separate from the wireless power signal. Control data is exchanged with the power transmitting unit via the wireless connection, wherein the control data is used by the processing device to implement the charging session with the wireless charging circuit. A response is generated to a disruption event of the wireless communication device that includes implementing a restoration procedure for restoring the wireless connection, without implementing the connection establishment procedure.Type: GrantFiled: October 26, 2015Date of Patent: December 6, 2016Assignee: BROADCOM CORPORATIONInventors: Chikan Kwan, Xin Tian, Erik John Rivard, Xianbo Chen, Lih-Feng Tsaur