Patents by Inventor Byung-Joo Ryu

Byung-Joo Ryu 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).

  • Temperature control method for a heating/cooling system
    Patent number: 5819845
    Abstract: A temperature control method and apparatus therefor controls an air temperature in a room by determining an error temperature between a set temperature and an actual room temperature. An auxiliary reference calorie is initially set as a previous state calorie value, an error calorie associated with the detected error temperature is determined by PID operation and a current calorie value in determined by adding or subtracting the previous state calorie value to/from error calorie, and the room temperature is brought to the set temperature using the current calorie value.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: October 13, 1998
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Byung-Joo Ryu, Yun-Bong Chun