Patents by Inventor Tan-Chun Lu

Tan-Chun Lu 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: 10819631
    Abstract: A network device supporting TRILL protocol includes a memory, a processor, and a communication interface. The memory includes a lookup table stored therein. The processor is coupled to the memory. The communication interface is coupled to the processor. The communication interface includes a trunk port and an access port and is configured to receive a first packet. When the processor determines that an output port corresponding to a destination address of the first packet is the trunk port, and determines that there is a lack of nickname information corresponding to the destination address according to the look up table, a second packet is transmitted through the trunk port of the communication interface. The second packet includes an enable local bit. The second packet and the first packet include the same payload information.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 27, 2020
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventors: Tan-Chun Lu, Yu-Cheng Tsao
  • Patent number: 10462270
    Abstract: An A-MSDU sub-frame processing method is provided. The method includes: allocating a first sub-block and a second sub-block adjacent to the first sub-block in a memory when an Ethernet frame is received, wherein the first sub-block includes a block with a preset bit length, the second sub-block includes a block with a bit length corresponding to the Ethernet frame, and a pointer initially points to a first initial address in the second sub-block; sequentially storing header information of the Ethernet frame into the second sub-block according to a header format of the Ethernet frame; filling the first sub-block with length information of the Ethernet frame; shifting the pointer along a first direction to a second initial address whose distance shifted from the first initial address is the preset bit length; and reading out data in a length along a second direction from the second initial address to generate the A-MSDU sub-frame.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 29, 2019
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventor: Tan-Chun Lu
  • Publication number: 20190253348
    Abstract: A network device supporting TRILL protocol includes a memory, a processor, and a communication interface. The memory includes a lookup table stored therein. The processor is coupled to the memory. The communication interface is coupled to the processor. The communication interface includes a trunk port and an access port and is configured to receive a first packet. When the processor determines that an output port corresponding to a destination address of the first packet is the trunk port, and determines that there is a lack of nickname information corresponding to the destination address according to the look up table, a second packet is transmitted through the trunk port of the communication interface. The second packet includes an enable local bit. The second packet and the first packet include the same payload information.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 15, 2019
    Inventors: Tan-Chun LU, Yu-Cheng TSAO
  • Publication number: 20190104208
    Abstract: An A-MSDU sub-frame processing method is provided. The method includes: allocating a first sub-block and a second sub-block adjacent to the first sub-block in a memory when an Ethernet frame is received, wherein the first sub-block includes a block with a preset bit length, the second sub-block includes a block with a bit length corresponding to the Ethernet frame, and a pointer initially points to a first initial address in the second sub-block; sequentially storing header information of the Ethernet frame into the second sub-block according to a header format of the Ethernet frame; filling the first sub-block with length information of the Ethernet frame; shifting the pointer along a first direction to a second initial address whose distance shifted from the first initial address is the preset bit length; and reading out data in a length along a second direction from the second initial address to generate the A-MSDU sub-frame.
    Type: Application
    Filed: August 23, 2018
    Publication date: April 4, 2019
    Applicant: Accton Technology Corporation
    Inventor: Tan-Chun LU
  • Patent number: 9780925
    Abstract: An access point with capability of dynamically adjusting a present clear channel assessment (CCA) threshold value and an operating method of the access point are disclosed herein. The operating method includes, sensing a channel status through a receiving module, determining whether to transmit data through a transmission module according to the channel status and the present CCA threshold value, calculating a transmission error rate according to the data is successfully transmitted through the transmission module or not, determining a minimum received signal strength indicator (RSSI) value from a plurality of RSSI values corresponding to the workstations to serve as an upper bound of CCA threshold value and dynamically adjusting the present CCA threshold value according to the transmission error rate and the upper bound of CCA threshold value.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: October 3, 2017
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventors: Chien-Fu Sung, Tan-Chun Lu
  • Patent number: 9653776
    Abstract: An adjusting method of an antenna of the outdoor wireless access point includes steps of A. moving the antenna in a predetermined pointing range, and obtaining received signal strength indications in multiple pointing directions at different time points; B. separating the pointing range into at least two sub-ranges, and averaging the received signal strength indications in all pointing directions in each sub-range; and C. moving the antenna pointing at the sub-range in which the average received signal strength indication is the highest and setting the sub-range as the next predetermined pointing range, and repeating the steps A to C until the step C is executed a predetermined times. Besides, the composition elements of the outer wireless access point are also disclosed.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 16, 2017
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventors: Szu-Cheng Wu, Tan-Chun Lu
  • Patent number: 9374238
    Abstract: A wireless network apparatus provides a communication connection for a wireless device. The wireless network apparatus comprises a determining module used for outputting a first determining result when the wireless device is joining a multicast group and enables a power-saving mode thereof; a media queue module used for transmitting media information to the wireless device by either a direct-transmission mode or a deferred-transmission mode; and a control module used for controlling the media queue module to disable the deferred-transmission mode and enable the direct-transmission mode to transmit the media information to the wireless device based on the first determining result outputted by the determining module.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: June 21, 2016
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventors: Szu-Cheng Wu, Tan-Chun Lu
  • Publication number: 20150257168
    Abstract: A method for controlling packet priority is disclosed. The method is used in an access point and includes: associating with a station (STA) by a virtual access point (VAP) of an access point (AP), wherein an packet priority queue is applied in the STA initially; transmitting a configuration beacon frame to the STA by the VAP; reconfiguring the packet priority queue of the STA according to the configuration beacon frame; and transmitting an uplink data packet by the STA following the packet priority queue of the STA after receiving the configuration beacon frame from the VAP.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 10, 2015
    Applicant: Accton Technology Corporation
    Inventor: Tan-Chun LU
  • Patent number: 9131431
    Abstract: A method for automatically establishing a wireless network used in a wireless access point (AP) device is provided. The method comprises the steps outlined below. A first virtual AP unit is activated and operated in a provisional station mode according to a default configuration. The AP device determines whether the wireless AP device is connected to an access controller (AC), if the wireless AP device and the AC are connected, the wireless AP device communicates with the AC to perform a configuring process according to a retrieved configuration to activate a second virtual AP unit. The wireless AP device operates the second virtual AP unit in a configured mode and operates the first virtual AP unit in a provisional AP mode.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: September 8, 2015
    Assignee: ACCTON TECHNOLOGY CORPORATION
    Inventor: Tan-Chun Lu
  • Patent number: 8995325
    Abstract: A wireless network apparatus provides a wireless communication service for wireless devices through a first virtual access unit. The wireless network apparatus includes a determining module for outputting a first determination result when a wireless device enables the power saving mode and joins to a multicast group; a virtual access unit creating module for creating a second virtual access unit based on the first determination result outputted by the determining module; and a control module for controlling the second virtual access unit to provide a wireless communication service for the wireless device based on the first determination result outputted by the determining module.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: March 31, 2015
    Assignee: Accton Technology Corporation
    Inventors: Szu-Cheng Wu, Tan-Chun Lu
  • Patent number: 8948389
    Abstract: A wireless network connection method includes the following steps: a wireless network access point (AP) that receives apparatus identification information of a wireless network apparatus through a wireless network. The wireless network AP generates a temporary encryption key according to the apparatus identification information and AP identification information of the wireless network AP. The wireless network AP encrypts a network transmission key according to the temporary encryption key to generate an encrypted key. The AP identification information and the encrypted key are transmitted to the wireless network apparatus. The wireless network apparatus generates the temporary encryption key according to the apparatus identification information and the received AP identification information. The wireless network apparatus decrypts the encrypted key according to the temporary encryption key to generate the network transmission key.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: February 3, 2015
    Assignee: Accton Technology Corporation
    Inventor: Tan-Chun Lu
  • Publication number: 20150032868
    Abstract: An access point with capability of dynamically adjusting a present clear channel assessment (CCA) threshold value and an operating method of the access point are disclosed herein. The operating method includes, sensing a channel status through a receiving module, determining whether to transmit data through a transmission module according to the channel status and the present CCA threshold value, calculating a transmission error rate according to the data is successfully transmitted through the transmission module or not, and dynamically adjusting the present CCA threshold value according to the transmission error rate. In such an operation, the present CCA threshold value can be adjusted to a suitable value, and the access point can avoid abandoning its data transmission task due to the interferences of wireless signals from other access points or workstations located beyond the cell size of the access point.
    Type: Application
    Filed: November 26, 2013
    Publication date: January 29, 2015
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventors: Chien-Fu SUNG, Tan-Chun LU
  • Patent number: 8942127
    Abstract: A wireless network device and an automatic parameter setting method thereof are provided. The device includes a wireless communication module and an operation module. The wireless communication module is used for transmitting a test signal to a wireless device according to a wireless communication protocol, and receiving an ACK frame transmitted by the wireless device. The operation module is electrically connected to the wireless communication module, and is used for calculating one half of a sum of a minimum transmission time and a maximum transmission time, setting the half of the sum as an ACK timeout interval of the wireless communication module, analyzing whether the ACK frame is obtained within the ACK timeout interval so as to determine whether to use the ACK timeout interval as the maximum transmission time or the minimum transmission time, and recalculating the ACK timeout interval.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 27, 2015
    Assignee: Accton Technology Corporation
    Inventor: Tan-Chun Lu
  • Publication number: 20140365670
    Abstract: A distributed data processing system, a distributed data processing method and a wireless terminal point thereof are disclosed, where the distributed data process system includes a first access controller, a plurality of second access controllers and a wireless terminal point (WTP). When receiving a list containing address information of the second access controllers from the first access controller, the WTP selects one of the second access controllers to serve as a designated second access controller and connects the designated second access controller.
    Type: Application
    Filed: October 4, 2013
    Publication date: December 11, 2014
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventors: Te-An WANG, Chun-Sen SUN, Chung-Jen CHEN, Tan-Chun LU
  • Publication number: 20140204797
    Abstract: A method for automatically establishing a wireless network used in a wireless access point (AP) device is provided. The method comprises the steps outlined below. A first virtual AP unit is activated and operated in a provisional station mode according to a default configuration. The AP device determines whether the wireless AP device is connected to an access controller (AC), if the wireless AP device and the AC are connected, the wireless AP device communicates with the AC to perform a configuring process according to a retrieved configuration to activate a second virtual AP unit. The wireless AP device operates the second virtual AP unit in a configured mode and operates the first virtual AP unit in a provisional AP mode.
    Type: Application
    Filed: August 19, 2013
    Publication date: July 24, 2014
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventor: Tan-Chun LU
  • Patent number: 8755353
    Abstract: A method of controlling a connection of a station to different access points (AP) in roaming, in which the station is connected to a first AP through identification of basic service set context (BSS context), includes the following steps: a) Obtain received signal strength indications (RSSI) between the station and each access point. b) Copy the BSS context of the first AP to a second AP when the RSSI between the station and the first AP is less than RSSI between the station and the second AP; and c) disconnect the station from the first AP, and automatically connect the station to the second AP which has the same BSS context.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 17, 2014
    Assignee: Accton Technology Corporation
    Inventor: Tan-Chun Lu
  • Publication number: 20130235772
    Abstract: A wireless network apparatus provides a communication connection for a wireless device. The wireless network apparatus comprises a determining module used for outputting a first determining result when the wireless device is joining a multicast group and enables a power-saving mode thereof; a media queue module used for transmitting media information to the wireless device by either a direct-transmission mode or a deferred-transmission mode; and a control module used for controlling the media queue module to disable the deferred-transmission mode and enable the direct-transmission mode to transmit the media information to the wireless device based on the first determining result outputted by the determining module.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 12, 2013
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventors: Szu-Cheng WU, Tan-Chun LU
  • Publication number: 20130108047
    Abstract: A wireless network connection method includes the following steps: a wireless network access point (AP) that receives apparatus identification information of a wireless network apparatus through a wireless network. The wireless network AP generates a temporary encryption key according to the apparatus identification information and AP identification information of the wireless network AP. The wireless network AP encrypts a network transmission key according to the temporary encryption key to generate an encrypted key. The AP identification information and the encrypted key are transmitted to the wireless network apparatus. The wireless network apparatus generates the temporary encryption key according to the apparatus identification information and the received AP identification information. The wireless network apparatus decrypts the encrypted key according to the temporary encryption key to generate the network transmission key.
    Type: Application
    Filed: May 8, 2012
    Publication date: May 2, 2013
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventor: Tan-Chun LU
  • Publication number: 20130009819
    Abstract: An adjusting method of an antenna of the outdoor wireless access point includes steps of A. moving the antenna in a predetermined pointing range, and obtaining received signal strength indications in multiple pointing directions at different time points; B. separating the pointing range into at least two sub-ranges, and averaging the received signal strength indications in all pointing directions in each sub-range; and C. moving the antenna pointing at the sub-range in which the average received signal strength indication is the highest and setting the sub-range as the next predetermined pointing range, and repeating the steps A to C until the step C is executed a predetermined times. Besides, the composition elements of the outer wireless access point are also disclosed.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Inventors: SZU-CHENG WU, TAN-CHUN LU
  • Publication number: 20120327898
    Abstract: A method of controlling a connection of a station to different access points (AP) in roaming, in which the station is connected to a first AP through identification of basic service set context (BSS context), includes the following steps: a) Obtain received signal strength indications (RSSI) between the station and each access point. b) Copy the BSS context of the first AP to a second AP when the RSSI between the station and the first AP is less than RSSI between the station and the second AP; and c) disconnect the station from the first AP, and automatically connect the station to the second AP which has the same BSS context.
    Type: Application
    Filed: November 28, 2011
    Publication date: December 27, 2012
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventor: TAN-CHUN LU