Patents by Inventor Kwang-Joo Choi

Kwang-Joo Choi 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: 11939494
    Abstract: A technical problem to be achieved by the present disclosure is to provide an adhesive resin composition for a conductor, which contains inorganic fillers having different average particle diameters and has enhanced thermal conductivity as a result of controlling the content of the inorganic fillers, and an adhesive film for a semiconductor produced using the same.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 26, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Byoung Ju Choi, Kwang Joo Lee, Yu Lin Sun
  • Patent number: 10868359
    Abstract: The present disclosure provides a hybrid vehicle on board unit for supporting WAVE-V2X and C-V2X or a vehicle on board unit and a roadside unit supporting both WAVE-V2X and LTE-V2X or a vehicle on board unit and a roadside unit supporting all of WAVE-V2X, LTE-V2X and 5G-V2X or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X and LTE communication or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X, LTE communication and 5G communication.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 15, 2020
    Assignee: IT-TELECOM CO., LTD.
    Inventors: Beom Jun Sohn, Kwang Joo Choi
  • Publication number: 20190296426
    Abstract: The present disclosure provides a hybrid vehicle on board unit for supporting WAVE-V2X and C-V2X or a vehicle on board unit and a roadside unit supporting both WAVE-V2X and LTE-V2X or a vehicle on board unit and a roadside unit supporting all of WAVE-V2X, LTE-V2X and 5G-V2X or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X and LTE communication or a vehicle on board unit and a roadside unit supporting WAVE-V2X, LTE-V2X, 5G-V2X, LTE communication and 5G communication.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 26, 2019
    Applicant: IT-Telecom Co., Ltd.
    Inventors: Beom Jun Sohn, Kwang Joo Choi
  • Patent number: 7954398
    Abstract: A common use pedal device for automotive vehicles comprises a base plate and a pedal pivotably attached to the base plate and having a push rod extending downwards from an underneath surface of the pedal. A rotating member is mounted to the base plate in such a manner that the rotating member can be depressed and rotated by the push rod of the pedal, the rotating member having a pulling arm adapted to pull a manual operating cable in response to rotation of the rotating member. A rotation detecting sensor is provided on one side of the base plate for detecting the degree of rotation of the rotating member and then notifying an electronic control unit of the degree of rotation thus detected. This pedal device can be employed in common in a manually controlled pedal type vehicle and an electronically controlled pedal type vehicle.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: June 7, 2011
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Sang Heon Lee, Kwang Joo Choi
  • Patent number: 6804516
    Abstract: A transportation information system is disclosed, having a transportation terminal that transmits a transportation information request with a Dedicated Short Range Communication (DSRC) method, receives a transportation information reply corresponding to the transportation information request with the DSRC method, and provides the transportation information reply to a transportation subscriber. An Advanced Traveler Information Service (ATIS) terminal transmits a traveler information request with the DSRC method, receives a traveler information reply corresponding to the traveler information request with the DSRC method, and provides the traveler information reply to an ATIS subscriber. A base station communicates with the transportation terminal and the ATIS terminal through a two way DSRC communication.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: October 12, 2004
    Assignee: LG Electronics, Inc.
    Inventor: Kwang-Joo Choi
  • Patent number: 6756915
    Abstract: A geographic information service system is disclosed, having a geographic information supply server that supplies geographic information by certain regions; an Electronic Toll Collection (ETC) terminal that transmits registration information service requests and geographic information service requests from a vehicle; a Dedicated Short Range Communication (DSRC) base station that communicates bi-directionally with the ETC terminal by a DSRC method; and a DSRC server in communication with the DSRC base station that analyzes a message transmitted from the DSRC base station and supplies a requested geographic information service by communicating with the geographic information supply server.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: June 29, 2004
    Assignee: LG Electronics Inc.
    Inventor: Kwang-Joo Choi
  • Patent number: 6665279
    Abstract: Disclosed is a local multipoint distribution service(LMDS) system, in which the cost for installation and maintenance is lower comparing to a cable communication system, it takes a little time to install the system, and a variety multimedia communication services can be provided. According to one feature of the present invention, the LMDS system comprises a data/signal handler for multiplexing and modulating packet data received from a network, and for demodulating and demultiplexing an optical signal received; and at least one base stations for down-converting the multiplexed and modulated packet data into a radio frequency(RF) signal, and for converting an RF signal received into an optical signal so as to send to the data/signal handler.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: December 16, 2003
    Assignee: LG Information & Communications, Ltd.
    Inventors: Ok Moon Kwak, Kwang Joo Choi
  • Patent number: 6650374
    Abstract: The present invention relates to a digital television relay system for relaying wirelessly a broadcasting signal discharged from a broadcasting station. In order to cover shadow areas of the digital broadcasting channel signal discharged from a digital television transmitter, the present invention receives the broadcasting channel signal of a certain frequency discharged from the broadcasting station, performs channel-decoding, compensates a transmission error occurred in space, and relays it wirelessly to a subscriber in the shadow areas. Accordingly, the present invention can provide a digital television broadcasting service with transmission quality same with the broadcasting station to the subscriber in the shadow areas.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 18, 2003
    Assignee: LG Electronics Inc.
    Inventors: Kwang-Joo Choi, Seong-Hwan Oh, Cheol Lee, Byung-Heon Lee
  • Publication number: 20020080048
    Abstract: A geographic information service system is disclosed, having a geographic information supply server that supplies geographic information by certain regions; an Electronic Toll Collection (ETC) terminal that transmits registration information service requests and geographic information service requests from a vehicle; a Dedicated Short Range Communication (DSRC) base station that communicates bi-directionally with the ETC terminal by a DSRC method; and a DSRC server in communication with the DSRC base station that analyzes a message transmitted from the DSRC base station and supplies a requested geographic information service by communicating with the geographic information supply server.
    Type: Application
    Filed: October 25, 2001
    Publication date: June 27, 2002
    Applicant: LG Electronics Inc.
    Inventor: Kwang-Joo Choi
  • Publication number: 20020072365
    Abstract: A transportation information system is disclosed, having a transportation terminal that transmits a transportation information request with a Dedicated Short Range Communication (DSRC) method, receives a transportation information reply corresponding to the transportation information request with the DSRC method, and provides the transportation information reply to a transportation subscriber. An Advanced Traveler Information Service (ATIS) terminal transmits a traveler information request with the DSRC method, receives a traveler information reply corresponding to the traveler information request with the DSRC method, and provides the traveler information reply to an ATIS subscriber. A base station communicates with the transportation terminal and the ATIS terminal through a two way DSRC communication.
    Type: Application
    Filed: October 25, 2001
    Publication date: June 13, 2002
    Applicant: LG Electronics Inc.
    Inventor: Kwang-Joo Choi
  • Publication number: 20020072964
    Abstract: A parking charge settling apparatus includes an Electronic Toll Collection (ETC) terminal that stores registration information for parking charge settlement, analyzes the stored information, and transmits the registration information in a dedicated short range communication (DSRC) format; a vehicle sensor managing server that communicates with a vehicle sensor installed at a parking space to manage parking state information; a DRSC base station that communicates bi-directionally with the ETC terminal using the DSRC format, when a vehicle mounting the ETC terminal enters a predetermined range; a settlement center server that informs the vehicle entering the parking lot of an available parking space, computes a parking charge, and settles the parking charge with the ETC terminal; a first displayer that displays available parking space information received from the settlement center server; and a second displayer that displays the parking charge and whether the vehicle is allowed to pass.
    Type: Application
    Filed: October 25, 2001
    Publication date: June 13, 2002
    Applicant: LG Electronics Inc.
    Inventor: Kwang-Joo Choi
  • Publication number: 20010005234
    Abstract: The present invention relates to a digital television relay system for relaying wirelessly a broadcasting signal discharged from a broadcasting station. In order to cover shadow areas of the digital broadcasting channel signal discharged from a digital television transmitter, the present invention receives the broadcasting channel signal of a certain frequency discharged from the broadcasting station, performs channel-decoding, compensates a transmission error occurred in space, and relays it wirelessly to a subscriber in the shadow areas. Accordingly, the present invention can provide a digital television broadcasting service with transmission quality same with the broadcasting station to the subscriber in the shadow areas.
    Type: Application
    Filed: December 19, 2000
    Publication date: June 28, 2001
    Applicant: LG Electronics Inc.
    Inventors: Kwang-Joo Choi, Seong-Hwan Oh, Cheol Lee, Byung-Heon Lee