Patents by Inventor Youn-Tai Lee

Youn-Tai 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: 9893847
    Abstract: A wireless communication device and a digital self-interference estimation method thereof are provided. The wireless communication device, at respective timings, receives a plurality of self-interference signals and generates a plurality of ideal transmitting signals. The wireless communication device calculates a signal adjusting vector based on the self-interference signals and the ideal transmitting signals at different timings. The wireless communication device generates a main ideal transmitting signal at a main timing, and calculates, based on the signal adjusting vector, a main self-interference signal corresponding to the main timing according to the received self-interference and the main ideal transmitting signal.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: February 13, 2018
    Assignee: Institute For Information Industry
    Inventors: Yuan-Te Liao, Terng-Yin Hsu, You-Hsien Lin, Youn-Tai Lee, Jian-Cheng Li
  • Publication number: 20140295861
    Abstract: A network system and a resource allocation method thereof are provided. The network system includes a base station and a mobile station. The base station retrieves mobile station information from the mobile station via a network connection, and decides a communication allocation between the base station and the mobile station according to the mobile information. The communication allocation records one or a combination of a common base station identification and a dedicated base station identification. After the base station transmits the communication allocation to the mobile station, the mobile station communicates with the base station according to the communication allocation via one or a combination of the common base station identification and the dedicated base station identification.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 2, 2014
    Applicant: Institute For Information Industry
    Inventors: Chun-Che CHIEN, Shiann-Tsong SHEU, Youn-Tai LEE, Tsung-Yu TSAI, Yi-Hsueh TSAI, Chiu-Wen CHEN
  • Patent number: 8340080
    Abstract: A system for scheduling packets to be transmitted is provided. The system includes a soft delay bound calculator module and a frame determination module. The soft delay bound calculator module calculates a soft delay bound for a non-real-time packet based on a packet size of the non-real-time packet and a minimum reserved traffic rate of a channel. The frame determination module determines whether a real-time packet must be transmitted at a current frame according to a delay bound, a transmission time, and a possible retransmission time thereof, and whether a non-real-time packet must be transmitted at a current frame according to a soft delay bound, a transmission time, and a possible retransmission time thereof. Thus, it is possible to improve the performance of the system while keeping the QoS thereof in a mixed service environment.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: December 25, 2012
    Assignee: Institute For Information Industry
    Inventors: Ching-Yao Huang, Chan-jui Chian, Youn-Tai Lee, Yi-Ting Lin
  • Patent number: 8275079
    Abstract: A communication apparatus, a method, and a tangible machine-readable medium thereof for processing ranging interference of an orthogonal frequency division multiplexing (OFDM) signal. The communication apparatus comprises a receiving unit, a processing unit, and a mask generating unit. The receiving unit receives the OFDM signal having a plurality of OFDM symbols. The processing unit estimates a delay value and an energy value of at least one ranging code according to the OFDM symbols. The mask generating unit generates a mask function according to the delay value and the energy value. Finally, the processing unit synthesizes the ranging interference in the OFDM signal and removes it according to the mask function.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 25, 2012
    Assignee: Institute for Information Industry
    Inventors: Kun-Chien Hung, David W. Lin, Youn-Tai Lee, Yi-Ting Lin
  • Patent number: 8179852
    Abstract: A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: May 15, 2012
    Assignee: Institute for Information Industry
    Inventors: Yang-Han Lee, Yih-Guang Jan, Ming-Hsueh Chuang, Hsien-Wei Tseng, Jheng-Yao Lin, Wei-Chen Lee, Wei-Chieh Tseng, Hsi-Chun Tseng, Ting-Chien Wang, Po-Jung Lin, Shiann-Tsong Sheu, Yung-Ting Lee, Youn-Tai Lee, Hua-Chiang Yin
  • Patent number: 8126393
    Abstract: A gain adjustment apparatus, a gain adjustment method, and a tangible machine-readable medium thereof for a multiple input multiple output (MIMO) wireless communication system are provided. The MIMO wireless communication system comprises source antennas, destination antennas, relay stations (RSs) and a relay transmission power limit value. The gain adjustment method comprises the following steps: adjusting the gain of one single RS according to a gain calculation; multiplying the gains of other relay stations by a scaling value for adjustment. According to aforesaid method, the present invention can increase the system capacity of the MIMO wireless communication system.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 28, 2012
    Assignee: Institute for Information Industry
    Inventors: Chun-Jung Wu, David W. Lin, Youn-Tai Lee, Yi-Ting Lin
  • Patent number: 8126081
    Abstract: A signal modulation apparatus, a signal modulation method and a computer program product thereof are provided. The signal modulation apparatus is used in a communication framework consisting of a plurality of communication systems. The communication systems comprise a first communication system having a first antenna and a second communication system having a second antenna. The signal modulation apparatus is configured to generate isolation information to modulate a power of a first antenna according to specification information of the first communication system, specification information of the second communication system, information of the first antenna, information of the second antenna, distance information of the first antenna and the second antenna, and test information.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: February 28, 2012
    Assignee: Institute for Information Industry
    Inventors: Hua-Chiang Yin, Hsien-Wei Tseng, Yang-Han Lee, Yih-Guang Jan, Yun-Hsih Chou, Ming-Hsueh Chuang, Hsi-Chun Tseng, Chih-Hsiang Tseng, Youn-Tai Lee
  • Patent number: 8107884
    Abstract: A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: January 31, 2012
    Assignee: Institute for Information Industry
    Inventors: Yang-Han Lee, Yih-Guang Jan, Ming-Hsueh Chuang, Hsien-Wei Tseng, Jheng-Yao Lin, Wei-Chen Lee, Wei-Chieh Tseng, Hsi-Chun Tseng, Ting-Chien Wang, Po-Jung Lin, Shiann-Tsong Sheu, Yung-Ting Lee, Youn-Tai Lee, Hua-Chiang Yin
  • Patent number: 8027689
    Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting a bandwidth (BW) allocation based on a multi-hop relay standard are provided. The wireless communication system comprises a BS and at least one RS. The BS transmits the at least one particular channel descriptor to the at least one RS. The least one RS transmits at least one Ack to the BS for replying the at least one particular channel descriptor. Finally, the BS transmits the at least one BW allocation to the at least one RS according to the at least one Ack in a predetermined interval.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 27, 2011
    Assignee: Institute for Information Industry
    Inventors: Chih-Chiang Hsieh, Shiann-Tsong Sheu, Hua-Chiang Yin, Youn-Tai Lee, Kan-chei Loa, Yung-Ting Lee, Yi-Hsueh Tsai, Frank Chee-Da Tsai, Heng-Iang Hsu
  • Patent number: 7970343
    Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting and relaying a channel descriptor based on a multi-hop relay standard are provided. The wireless communication system comprises a BS and at least one RS. The BS divides the channel descriptor into a common channel descriptor and at least one particular channel descriptor. Then the BS broadcasts/multicasts the common channel descriptor to the at least one RS and transmits the at least one particular channel descriptor to the same. The at least one RS combines the common channel descriptor and the at least one particular channel descriptor to generate the channel descriptor.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Institute for Information Industry
    Inventors: Chih-Chiang Hsieh, Shiann-Tsong Sheu, Hua-Chiang Yin, Youn-Tai Lee, Kan-chei Loa, Yung-Ting Lee, Yi-Hsueh Tsai, Frank Chee-Da Tsai, Heng-Iang Hsu
  • Publication number: 20100291864
    Abstract: A gain adjustment apparatus, a gain adjustment method, and a tangible machine-readable medium thereof for a multiple input multiple output (MIMO) wireless communication system are provided. The MIMO wireless communication system comprises source antennas, destination antennas, relay stations (RSs) and a relay transmission power limit value. The gain adjustment method comprises the following steps: adjusting the gain of one single RS according to a gain calculation; multiplying the gains of other relay stations by a scaling value for adjustment. According to aforesaid method, the present invention can increase the system capacity of the MIMO wireless communication system.
    Type: Application
    Filed: August 28, 2009
    Publication date: November 18, 2010
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chun-Jung WU, David W. LIN, Youn-Tai LEE, Yi-Ting LIN
  • Publication number: 20100061436
    Abstract: A signal modulation apparatus, a signal modulation method and a computer program product thereof are provided. The signal modulation apparatus is used in a communication framework consisting of a plurality of communication systems. The communication systems comprise a first communication system having a first antenna and a second communication system having a second antenna. The signal modulation apparatus is configured to generate isolation information to modulate a power of a first antenna according to specification information of the first communication system, specification information of the second communication system, information of the first antenna, information of the second antenna, distance information of the first antenna and the second antenna, and test information.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 11, 2010
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Hua-Chiang YIN, Hsien-Wei TSENG, Yang-Han LEE, Yih-Guang JAN, Yun-Hsih CHOU, Ming-Hsueh CHUANG, Hsi-Chun TSENG, Chih-Hsiang TSENG, Youn-Tai LEE
  • Publication number: 20090274231
    Abstract: A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 5, 2009
    Applicant: Institute for Information Industry
    Inventors: Yang-Han Lee, Yih-Guang Jan, Ming-Hsueh Chuang, Hsien-Wei Tseng, Jheng-Yao Lin, Wei-Chen Lee, Wei-Chieh Tseng, Hsi-Chun Tseng, Ting-Chien Wang, Po-Jung Lin, Shiann-Tsong Sheu, Yung-Ting Lee, Youn-Tai Lee, Hua-Chiang Yin
  • Publication number: 20090274111
    Abstract: A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network.
    Type: Application
    Filed: July 7, 2009
    Publication date: November 5, 2009
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Yang-Han Lee, Yih-Guang Jan, Ming-Hsueh Chuang, Hsien-Wei Tseng, Jheng-Yao Lin, Wei-Chen Lee, Wei-Chieh Tseng, Hsi-Chun Tseng, Ting-Chien Wang, Po-Jung Lin, Shiann-Tsong Sheu, Yung-Ting Lee, Youn-Tai Lee, Hua-Chiang Yin
  • Publication number: 20090238291
    Abstract: A communication apparatus, a method, and a tangible machine-readable medium thereof for processing ranging interference of an orthogonal frequency division multiplexing (OFDM) signal. The communication apparatus comprises a receiving unit, a processing unit, and a mask generating unit. The receiving unit receives the OFDM signal having a plurality of OFDM symbols. The processing unit estimates a delay value and an energy value of at least one ranging code according to the OFDM symbols. The mask generating unit generates a mask function according to the delay value and the energy value. Finally, the processing unit synthesizes the ranging interference in the OFDM signal and removes it according to the mask function.
    Type: Application
    Filed: June 30, 2008
    Publication date: September 24, 2009
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Kun-Chien Hung, David W. Lin, Youn-Tai Lee, Yi-Ting Lin
  • Publication number: 20090161660
    Abstract: A system for scheduling packets to be transmitted is provided. The system includes a soft delay bound calculator module and a frame determination module. The soft delay bound calculator module calculates a soft delay bound for a non-real-time packet based on a packet size of the non-real-time packet and a minimum reserved traffic rate of a channel. The frame determination module determines whether a real-time packet must be transmitted at a current frame according to a delay bound, a transmission time, and a possible retransmission time thereof, and whether a non-real-time packet must be transmitted at a current frame according to a soft delay bound, a transmission time, and a possible retransmission time thereof. Thus, it is possible to improve the performance of the system while keeping the QoS thereof in a mixed service environment.
    Type: Application
    Filed: March 27, 2008
    Publication date: June 25, 2009
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Ching-Yao Huang, Chan-jui Chian, Youn-Tai Lee, Yi-Ting Lin
  • Publication number: 20080247354
    Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting uplink hybrid automatic repeat request (HARQ) packets based on a multi-hop relay standard are provided. The wireless communication system comprises a BS, an SS, and a plurality of RSs. The RS transmits a plurality of first uplink HARQ packets to the RSs. After receiving one of the first uplink HARQ packets, at least one of the RSs replies a first ACK to the BS and retrieves a second uplink HARQ packet in the first uplink HARQ packet. Then, the at least one of the RSs transmits the second uplink HARQ packet to the BS. And the second uplink HARQ packet is the same as a part of one of the first uplink HARQ packets.
    Type: Application
    Filed: December 12, 2007
    Publication date: October 9, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chih-Chiang Hsieh, Shiann-Tsong Sheu, Hua-Chiang Yin, Youn-Tai Lee, Kan-chei Loa, Yung-Ting Lee, Yi-Hsueh Tsai, Frank Chee-Da Tsai, Heng-Iang Hsu
  • Publication number: 20080247349
    Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting downlink hybrid automatic repeat request (HARQ) packets based on a multi-hop relay standard are provided. The wireless communication system comprises a BS, an SS, and a plurality of RSs. The BS transmits a plurality of first downlink HARQ packets to the RSs. After receiving one of the first downlink HARQ packets, at least one of the RSs replies a first ACK to the BS and retrieves a second downlink HARQ packet in the first downlink HARQ packet. Then, the at least one of the RSs transmits the second downlink HARQ packet to the SS. And the second downlink HARQ packet is the same as a part of one of the first downlink HARQ packets.
    Type: Application
    Filed: December 12, 2007
    Publication date: October 9, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chih-Chiang HSIEH, Shiann-Tsong SHEU, Hua-Chiang YIN, Youn-Tai LEE, Kan-chei LOA, Yung-Ting LEE, Yi-Hsueh TSAI, Frank Chee-Da TSAI, Heng-Iang HSU
  • Publication number: 20080212466
    Abstract: An apparatus, a transmission method, and a tangible machine-readable medium thereof for relaying a data signal in a multi-hop relay network are provided, wherein the multi-hop relay network comprising a plurality of relay stations. The apparatus comprises a storage module, a receiving module, and a transmission module. The storage module is configured to store a message of the multi-hop relay network, the message indicating a relation between the apparatus and the relay stations. The receiving module is configured to receive the data signal. The transmission module is configured to transmit the data signal and a first response signal according to the message in response to the data signal, wherein the first response signal relates to a correctness of the data signal.
    Type: Application
    Filed: December 5, 2007
    Publication date: September 4, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chih-Chiang Hsieh, Shiann-Tsong Sheu, Hua-Chiang Yin, Youn-Tai Lee, Kan-chei Loa, Yung-Ting Lee, Yi-Hsueh Tsai, Frank Chee-Da Tsai, Heng-Iang Hsu
  • Publication number: 20080214105
    Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting a bandwidth (BW) allocation based on a multi-hop relay standard are provided. The wireless communication system comprises a BS and at least one RS. The BS transmits the at least one particular channel descriptor to the at least one RS. The least one RS transmits at least one Ack to the BS for replying the at least one particular channel descriptor. Finally, the BS transmits the at least one BW allocation to the at least one RS according to the at least one Ack in a predetermined interval.
    Type: Application
    Filed: December 5, 2007
    Publication date: September 4, 2008
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Heng-Iang Hsu, Youn-Tai Lee, Shiann-Tsong Sheu, Hua-Chiang Yin, Frank Chee-Da Tsai, Chih-Chiang Hsieh