Patents by Inventor Kyeong-Jin Choi

Kyeong-Jin 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).

  • Portable terminal with multipurpose earjack
    Patent number: 7130184
    Abstract: A portable terminal connectable to various external accessories. The potable terminal includes an earjack in which the external accessories can be plugged; an analog-to-digital conversion (ADC) section for converting a resistance value of an external accessory plugged in the earjack into an ADC value; a memory for storing ADC values of the external accessories; and a controller for converting a resistance value of the external accessory plugged in the earjack into an ADC value by controlling the ADC section, determining what type of external accessory plugged in the earjack by comparing the converted ADC value with the ADC values stored in the memory, and performing a function of the plugged-in external accessory via a corresponding pin of the earjack.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: October 31, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyeong-Jin Choi
  • Portable terminal with multipurpose earjack
    Publication number: 20040116005
    Abstract: A portable terminal connectable to various external accessories. The potable terminal includes an earjack in which the external accessories can be plugged; an analog-to-digital conversion (ADC) section for converting a resistance value of an external accessory plugged in the earjack into an ADC value; a memory for storing ADC values of the external accessories; and a controller for converting a resistance value of the external accessory plugged in the earjack into an ADC value by controlling the ADC section, determining what type of external accessory plugged in the earjack by comparing the converted ADC value with the ADC values stored in the memory, and performing a function of the plugged-in external accessory via a corresponding pin of the earjack.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 17, 2004
    Inventor: Kyeong-Jin Choi