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).

  • Patent number: 11696109
    Abstract: 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: Grant
    Filed: January 25, 2021
    Date of Patent: July 4, 2023
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
  • Patent number: 11678163
    Abstract: 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: Grant
    Filed: March 1, 2021
    Date of Patent: June 13, 2023
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Xianbo Chen, Chikan Kwan, Shawn Ding
  • Patent number: 11134534
    Abstract: 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: Grant
    Filed: April 10, 2018
    Date of Patent: September 28, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Shawn Ding, Chikan Kwan, Hea Joung Kim, David Lee Recker, Brandon Bongkee Bae, Yuan Zhuang, Guoxin Xie, Seema B. Anand, John S. Walley
  • Publication number: 20210185502
    Abstract: 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: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Inventors: Xianbo CHEN, Chikan KWAN, Shawn DING
  • Publication number: 20210144541
    Abstract: 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: Application
    Filed: January 25, 2021
    Publication date: May 13, 2021
    Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
  • Patent number: 10966074
    Abstract: 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: Grant
    Filed: January 4, 2019
    Date of Patent: March 30, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Xianbo Chen, Chikan Kwan, Shawn Ding
  • Patent number: 10904738
    Abstract: 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: Grant
    Filed: October 26, 2018
    Date of Patent: January 26, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
  • Patent number: 10645735
    Abstract: 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: Grant
    Filed: March 14, 2018
    Date of Patent: May 5, 2020
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Shawn Ding, Chikan Kwan, Guoxin Xie, David Lee Recker, Brandon B. Bae, Hea Joung Kim, Seema B. Anand, Yuan Zhuang, Siukai Mak
  • Publication number: 20190141505
    Abstract: 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: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Applicant: Avago Technologies International Sales Pte. Limited
    Inventors: Xianbo CHEN, Chikan KWAN, Shawn DING
  • Publication number: 20190124712
    Abstract: 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: Application
    Filed: April 10, 2018
    Publication date: April 25, 2019
    Inventors: Shawn DING, Chikan KWAN, Hea Joung KIM, David Lee RECKER, Brandon Bongkee BAE, Yuan ZHUANG, Guoxin XIE, Seema B. ANAND, John S. WALLEY
  • Publication number: 20190069157
    Abstract: 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: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
  • Patent number: 10206084
    Abstract: 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: Grant
    Filed: January 27, 2017
    Date of Patent: February 12, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Xianbo Chen, Chikan Kwan, Shawn Ding
  • Patent number: 10158987
    Abstract: 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: Grant
    Filed: May 28, 2014
    Date of Patent: December 18, 2018
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Arthur Jin, Lih-Feng Tsaur, Chikan Kwan, Erik John Rivard, Xin Tian, Chaojing Sun, Angel Polo
  • Publication number: 20180270876
    Abstract: 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: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Applicant: 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
  • Patent number: 10044601
    Abstract: 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: Grant
    Filed: March 31, 2016
    Date of Patent: August 7, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Guoxin Xie, Chikan Kwan, Shawn Ding, Jun Guo, Yuan Zhuang
  • Publication number: 20180184234
    Abstract: 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: Application
    Filed: January 27, 2017
    Publication date: June 28, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd .
    Inventors: Xianbo Chen, Chikan Kwan, Shawn Ding
  • Patent number: 9918293
    Abstract: 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: Grant
    Filed: May 28, 2014
    Date of Patent: March 13, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Lih-Feng Tsaur, Angel Polo, Chikan Kwan, Erik John Rivard, Arthur Jin, Xin Tian, Chaojing Sun
  • Patent number: 9706496
    Abstract: 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: Grant
    Filed: October 31, 2011
    Date of Patent: July 11, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd
    Inventors: Angel Polo, Yuan Zhuang, Chikan Kwan, Guoxin Xie, Arthur Jin, Cindy (Xin) Tian
  • Publication number: 20170141999
    Abstract: 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: Application
    Filed: March 31, 2016
    Publication date: May 18, 2017
    Applicant: Broadcom Corporation
    Inventors: Guoxin XIE, Chikan KWAN, Shawn DING, Jun GUO, Yuan ZHUANG
  • Patent number: 9516690
    Abstract: 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: Grant
    Filed: October 26, 2015
    Date of Patent: December 6, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Chikan Kwan, Xin Tian, Erik John Rivard, Xianbo Chen, Lih-Feng Tsaur