Patents by Inventor Chih-Fang Lee

Chih-Fang Lee 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: 7894379
    Abstract: A key recognition method and a key recognition system are applied to a wireless bridging apparatus and a terminal apparatus with a wireless communication function. When a user uses the wireless bridging apparatus at a first time, the user cannot connect the wireless bridging apparatus to a wireless network through the terminal apparatus until key verification between the terminal apparatus and the wireless bridging apparatus has been conducted and passed. The key recognition method includes the steps of: transmitting, by the wireless bridging apparatus, an original code to the terminal apparatus; encoding, by the terminal apparatus, the original code to obtain a transformed code; encoding, by the terminal apparatus, the original code and the transformed code to obtain a recognition code; and transmitting, by the terminal apparatus, the recognition code to the wireless bridging apparatus for verification and communication establishment.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: February 22, 2011
    Assignee: Arcadyan Technology Corporation
    Inventors: Chih-Fang Lee, Chin-Hao Chang, Ming-Kuei Chou
  • Publication number: 20080285498
    Abstract: A key recognition method and a key recognition system are applied to a wireless bridging apparatus and a terminal apparatus with a wireless communication function. When a user uses the wireless bridging apparatus at a first time, the user cannot connect the wireless bridging apparatus to a wireless network through the terminal apparatus until key verification between the terminal apparatus and the wireless bridging apparatus has been conducted and passed. The key recognition method includes the steps of: transmitting, by the wireless bridging apparatus, an original code to the terminal apparatus; encoding, by the terminal apparatus, the original code to obtain a transformed code; encoding, by the terminal apparatus, the original code and the transformed code to obtain a recognition code; and transmitting, by the terminal apparatus, the recognition code to the wireless bridging apparatus for verification and communication establishment.
    Type: Application
    Filed: September 18, 2007
    Publication date: November 20, 2008
    Inventors: Chih-Fang Lee, Chin-Hao Chang, Ming-Kuei Chou
  • Patent number: 7340270
    Abstract: The present invention discloses a method for RF output power control of a wireless communication device by switching the wireless communication device between different modes according to a state parameter corresponding to a received beacon. These modes include a normal power mode for outputting a normal RF output power and a reduced-power mode for outputting a reduced RF output power. The reduced RF output power is less than the normal RF output power.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: March 4, 2008
    Assignee: Acradyan Technology Corporation
    Inventors: Chih-Fang Lee, I-Ru Liu
  • Publication number: 20070253445
    Abstract: The present invention provides a method for detecting the bandwidth and other useful parameters of the network status. With these detected result, especially the upstream bandwidth and the downstream bandwidth, the setting of the on-line service or application, which is usually sensitive to the network status, could be appropriately determined. In other words, the type of Codec, the transfer rate and the RTP packet interval could be perfectly determined for adequately utilizing the network in order to improve the quality of the on-line service or application.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventor: Chih-Fang Lee
  • Publication number: 20070217595
    Abstract: The present invention provides a communicating device and a method for peer to peer communication between voice over IP (VOIP) devices by means of transmitting IP address to remote site by Call ID method and establishing a data structure. The data structure stated above may record the Internet IP address corresponding to the outgoing and incoming VOIP phone number. When a user dials or receives the phone number recorded in the data structure, the communicating device with this data structure will find the Internet IP address corresponding to this VOIP phone number and using this IP address for peer to peer communication. It is unnecessary to register to SIP proxy or Call Agent which provided by service provider.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 20, 2007
    Inventor: Chih-Fang Lee
  • Publication number: 20070149133
    Abstract: The present invention discloses a method for determining the working status of a wireless network communication device. The method includes determining the probe request or broadcast packet or any wireless packet with its destination address equal to this AP address, and then determining whether extending the time interval of signal transmission based on the detection result. Next, when the device does not receive the probe requests or broadcast packet or any wireless packet with its destination address equal to this AP address within the first predetermined interval, the wireless network communication device will switch to the idle mode. Further, the step of the present invention includes determining whether awakening or shutdown the wireless network communication device based on the result of the detection of the probe request or broadcast packet or any wireless packet with its destination address equal to this AP address within the second predetermined interval.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 28, 2007
    Inventor: Chih-Fang Lee
  • Patent number: 7200121
    Abstract: A method of setting network configuration, and the device and system implemented in a virtual LAN are disclosed. By utilizing the present invention, a network device, such as switch, which supports VLAN, can set and adjust the VLAN configuration information record dynamically according to the media access control (MAC) addresses of other network devices connected to the ports of the network device, and by detecting the plug and play signal on each port of the network device, in order to maintain and manage the VLAN conveniently.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: April 3, 2007
    Assignee: Accton Technology Corporation
    Inventor: Chih-Fang Lee
  • Publication number: 20060117174
    Abstract: The present invention provides an optimization routing method for a communication network comprising obtaining a MAC address & SSID of an access point and encrypting a security key for network traffic by the obtained MAC address & SSID. Then, the client terminal accesses the network through the access point with an authentication key. An individual key is generated after the authentication key is approval. Next, the user designates a priority channel to a priority domain for priority traffic.
    Type: Application
    Filed: November 29, 2004
    Publication date: June 1, 2006
    Inventor: Chih-Fang Lee
  • Publication number: 20050227723
    Abstract: The present invention discloses a method for RF output power control of a wireless communication device by switching the wireless communication device between different modes according to a state parameter corresponding to a received beacon. These modes include a normal power mode for outputting a normal RF output power and a reduced-power mode for outputting a reduced RF output power. The reduced RF output power is less than the normal RF output power.
    Type: Application
    Filed: June 2, 2004
    Publication date: October 13, 2005
    Inventors: Chih-Fang Lee, I-Ru Liu
  • Publication number: 20030210703
    Abstract: A method of managing frame and switch and network structure thereof is disclosed. The method of managing frame provided by the present invention comprises: assigning a FIFO queue of a network connect device a higher processing priority level and other FIFO queues a lower processing priority level; and allocating a control frame to the FIFO queue having the higher processing priority level, wherein the control frame is a control signal which is required for the operation of network connection device and is outputted by a control device that is built in or built externally to the network connection device. By utilizing the present invention, the control frames among network connection devices can be processed and transmitted in advance of other frames, so as to decrease the delay of forwarding the control frames or the time between receiving and transmitting the control frames, thereby promoting the network service quality.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 13, 2003
    Applicant: Accton Technology Corporation
    Inventor: Chih-Fang Lee
  • Publication number: 20030189905
    Abstract: A method of setting network configuration, and the device and system implemented in a virtual LAN are disclosed. By utilizing the present invention, a network device, such as switch, which supports VLAN, can set and adjust the VLAN configuration information record dynamically according to the media access control (MAC) addresses of other network devices connected to the ports of the network device, and by detecting the plug and play signal on each port of the network device, in order to maintain and manage the VLAN conveniently.
    Type: Application
    Filed: June 4, 2002
    Publication date: October 9, 2003
    Applicant: ACCTON TECHNOLOGY CORPORATION
    Inventor: Chih-Fang Lee