Patents by Inventor Jong-In Ahn

Jong-In Ahn 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).

  • Publication number: 20050062347
    Abstract: The present invention provides a system for integrating a linear motion guide and a reluctance-type linear motor that can commonly employ a stationary member between the reluctance-type linear motor and the linear motion guide while removing a complicated connection structure between a conventional linear motion guide and a conventional linear motor for obtaining linear motion. In the system, a stationary unit interconnects a stationary member of the linear motion guide and a stationary member of the reluctance-type linear motor, and a movable unit interconnects a movable member of the linear motion guide and at least one movable member of the reluctance-type linear motor. Therefore, a structure of a linear transport device requiring both the linear motor and the linear motion guide is simplified, and cost is reduced.
    Type: Application
    Filed: September 20, 2004
    Publication date: March 24, 2005
    Applicant: Korea Electrotechnology Research Institute
    Inventors: Do Kang, Jong Ahn, Ji Kim, Jung Chang
  • Publication number: 20050025115
    Abstract: A method of communicating a variable length mobile network code (MNC) from a mobile communications network to a mobile station is provided. The method comprises transmitting a message comprising at least one of a first field and a second field, wherein the first field indicates whether the MNC is greater than a fixed length (2 digits). The first field further indicates whether the second field is included in the message.
    Type: Application
    Filed: December 30, 2003
    Publication date: February 3, 2005
    Inventors: Chan Kyung, Jong Ahn
  • Publication number: 20050009504
    Abstract: A method for identifying a mobile communications device in a mobile communications network is provided. The method comprises determining an identifier for a mobile communications device, the identifier comprising at least one of a first field, a second field, and a third field; including in the first field a mobile country code (MCC) for identifying a country to which the mobile communications device belongs; including in the second field a mobile network code (MNC) for identifying a network to which the mobile communications device belongs in the country; including in the third field a mobile station identification number (MSIN) for identifying the mobile communications device in the network; and including padding values in the third field, when the length of the MSIN is less than the length of the third field.
    Type: Application
    Filed: December 30, 2003
    Publication date: January 13, 2005
    Inventors: Chan Kyung, Jong Ahn
  • Patent number: 4870507
    Abstract: A tape format of 4-mm wide video tape for use in a video tape recorder adopting helical scanning and azimuth recording methods is disclosed in conjunction with a video tape recorder system thereof, which enables the video tape recorder to achieve the greatest size-reduction and improve the resolution in picture reproducing by raising the S/N ratio of video signals. The tape format includes a video width area for an automatic track finding signal to control the traveling of tape and the video signal consisting of color signals and luminance signals, an option track area for recording audio signals, a first guide area for keeping the minimum part of tape in touch with the upper drum, a second guide area for separating the audio signals of the option track area from the video signals of the video width area, and first and second overlap areas respectively below the first guide area and above the second guide area, provided for overlapping the video signals on the edges of video tracks in recording operation.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: September 26, 1989
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-ku Ahn, Jong-ahn Kim, Jong-Kwan Paik, Hee-Chul Gong