Patents by Inventor Chia-Chun Chung

Chia-Chun Chung 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: 7995543
    Abstract: A wireless network device includes N access point (AP) modules having N BSSID's, where N is an integer greater than 1. The wireless network device includes a control module that communicates with the N AP modules. The control module stores the N BSSID's, a BSSID of an (N+1)th external AP that communicates with M client stations, and at least one MAC address of at least one of the M client stations, where M is an integer greater than or equal to 1. The control module communicates with the (N+1)th external AP by emulating at least one of the M client stations.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: August 9, 2011
    Assignee: Marvell World Trade Ltd.
    Inventors: Ken Kinwah Ho, Tam Tran, Chia-Chun Chung, Timothy J. Donovan, Sonali Bagchi
  • Patent number: 7773573
    Abstract: A network appliance includes a first media access controller with a first transmit queue storing one or more data packets to be transmitted to a first wireless device. A second media access controller includes a second transmit queue storing one or more data packets to be transmitted to a second wireless device. A baseband processor communicates with the first and the second media access controllers. An arbitration module arbitrates access of the first and second media access controllers to the baseband processor based on whether the first and second transmit queues have data packets to be transmitted to the first and second wireless devices, respectively. When both have data packets to be transmitted, the arbitration module instructs the first or second media access controller to flush any data packets stored in the first or second transmit queue so that transmission of a flushed data packet can be re-tried.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 10, 2010
    Assignee: Marvell World Trade Ltd.
    Inventors: Chia-Chun Chung, Ken Kinwah Ho
  • Patent number: 7768981
    Abstract: A wireless network device comprises a first wireless communication device that includes a first radio frequency (RF) transceiver that generates a synchronization pulse and that transmits and receives data according to a first period. A second wireless communication device receives a signal indicative of the synchronization pulse and includes a second RF transceiver that transmits and receives data according to a second period. The second period is not equal to the first period and the second wireless communication device adjusts the second period according to the first period and the synchronization pulse.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: August 3, 2010
    Assignee: Marvell International Ltd.
    Inventors: Timothy J. Donovan, Partho Mishra, Ken Kinwah Ho, Chia-Chun Chung
  • Publication number: 20100118792
    Abstract: A network appliance includes a first media access controller with a first transmit queue storing one or more data packets to be transmitted to a first wireless device. A second media access controller includes a second transmit queue storing one or more data packets to be transmitted to a second wireless device. A baseband processor communicates with the first and the second media access controllers. An arbitration module arbitrates access of the first and second media access controllers to the baseband processor based on whether the first and second transmit queues have data packets to be transmitted to the first and second wireless devices, respectively. When both have data packets to be transmitted, the arbitration module instructs the first or second media access controller to flush any data packets stored in the first or second transmit queue so that transmission of a flushed data packet can be re-tried.
    Type: Application
    Filed: January 25, 2010
    Publication date: May 13, 2010
    Inventors: Chia-Chun Chung, Ken Kinwah Ho
  • Patent number: 7653038
    Abstract: A wireless network device includes a first media access controller (MAC) that generates a first output signal, a second MAC that generates a second output signal, and a communication channel. The communication channel includes a baseband processor in communication with a radio frequency transmitter and selectively transmits one of the first output signal and the second output signal.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: January 26, 2010
    Assignee: Marvell World Trade Ltd.
    Inventors: Chia-Chun Chung, Ken Kinwah Ho
  • Patent number: 7454634
    Abstract: A wireless network device having active and inactive modes comprises a clock generating module that generates a first clock signal having a first clock rate. A voltage supply module generates a first voltage level and a second voltage level that is less than the first voltage level. A first digital module receives the first clock rate and the first voltage level during the active mode, receives the second voltage level during the inactive mode and does not receive the first clock signal during the inactive mode. A first analog module communicates with the voltage supply module and has reduced current consumption during the inactive mode.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 18, 2008
    Assignee: Marvell International Ltd.
    Inventors: Timothy Donovan, Shafiq Jamal, Yonghua Song, Chia-Chun Chung, Tam Tran, Lawrence Tse
  • Publication number: 20080084835
    Abstract: A system includes a signal processing module and a control module. The signal processing module receives a first clear channel assessment (CCA) signal for a first sub-channel of a communication channel, increases a pulse width of the first CCA signal by a predetermined period of time, and generates a second CCA signal. The control module receives the second CCA signal and a third CCA signal for a second sub-channel of the communication channel. The control module transmits data via one of the second sub-channel and the communication channel based on the second and third CCA signals.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 10, 2008
    Inventors: Sandesh Goel, Timothy Donovan, Ken Ho, Yungping Hsu, Kedar Shirali, Atul Salhotra, Tam Tran, Chia-Chun Chung
  • Publication number: 20070258397
    Abstract: A wireless network device includes N access point (AP) modules having N BSSID's, where N is an integer greater than 1. The wireless network device includes a control module that communicates with the N AP modules. The control module stores the N BSSID's, a BSSID of an (N+1)th external AP that communicates with M client stations, and at least one MAC address of at least one of the M client stations, where M is an integer greater than or equal to 1. The control module communicates with the (N+1)th external AP by emulating at least one of the M client stations.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Applicant: Marvell International Ltd.
    Inventors: Ken Ho, Tam Tran, Chia-Chun Chung, Timothy Donovan
  • Publication number: 20070191042
    Abstract: A wireless network device includes a first media access controller (MAC) that generates a first output signal, a second MAC that generates a second output signal, and a communication channel. The communication channel includes a baseband processor in communication with a radio frequency transmitter and selectively transmits one of the first output signal and the second output signal.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Applicant: Marvell International Ltd.
    Inventors: Chia-Chun Chung, Ken Ho