Patents by Inventor Dong Soo Cho

Dong Soo Cho 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: 6845441
    Abstract: An instruction decoding unit in a microcomputer is disclosed having an instruction word capable of being selected by a user to conveniently produce application software while maintaining security. The decoding unit in a microcomputer includes an instruction register for storing instructions fetched from a memory, an instruction decoder for decoding instruction codes of the instructions stored in the instruction register and for designating micro-instructions to be executed, a micro-ROM for outputting a series of the micro-instructions designated by the instruction decoder, and a user instruction selector for selecting or changing the micro-instructions of the micro-ROM in response to user's selection so as to change the operation of an instruction word.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: January 18, 2005
    Assignee: LG Semicon Co., Ltd.
    Inventor: Dong Soo Cho
  • Publication number: 20020029329
    Abstract: An instruction decoding unit in a microcomputer is disclosed having an instruction word capable of being selected by a user to conveniently produce application software while maintaining security. The decoding unit in a microcomputer includes an instruction register for storing instructions fetched from a memory, an instruction decoder for decoding instruction codes of the instructions stored in the instruction register and for designating micro-instructions to be executed, a micro-ROM for outputting a series of the micro-instructions designated by the instruction decoder, and a user instruction selector for selecting or changing the micro-instructions of the micro-ROM in response to user's selection so as to change the operation of an instruction word.
    Type: Application
    Filed: August 13, 2001
    Publication date: March 7, 2002
    Applicant: LG Semicon Co.,Ltd.
    Inventor: Dong Soo Cho
  • Patent number: 6034955
    Abstract: A communication system and method requiring only a single line for communication among integrated circuits (ICs). The system includes: a single communication line; plural ICs coupled to the single communication line; one of the ICs operating as a master IC; one of the ICs operating as a transmitting IC and one of the ICs operating as a receiving IC according to a designation by the master IC. The master IC transmits, on the single communication line, a reference signal having a reference signal width, C.sub.PW, to the other ICs. The master IC designates a first one of the ICs and a second one of the ICs as a chosen transmitting IC and a chosen receiving IC, respectively, for an imminent data-transmission operation, by transmitting signals of differing widths (relative to the reference signal width) over the single communication line.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: March 7, 2000
    Assignee: LG Semicon Co., Ltd.
    Inventor: Dong Soo Cho
  • Patent number: 5974519
    Abstract: An improved address re-designate circuit for a programmable microcontroller which is capable of arbitrarily selecting a peripheral circuit and re-designating an address corresponding to the selected peripheral circuit has the advantage of easily being programmed since the user can arbitrarily select a peripheral circuit disposed in the microcontroller chip according to a desired function and can re-designate an address thereof.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: October 26, 1999
    Assignee: LG Semicon Co., Ltd.
    Inventor: Dong-Soo Cho
  • Patent number: 5878247
    Abstract: An improved automatic data backup apparatus for a microcomputer capable of automatically backing up a user's program at a central processing unit(CPU), which includes a central processing unit(CPU) for performing a user program and a monitor program outputted from a first emulator input/output circuit and a data/address bus; a second emulator input/output circuit for outputting a register signal applied thereto and for inputting/outputting a data between a register data bus connected to an emulator and a backup register bus; and a data backup storing circuit for automatically backing up a data stored in a register of the CPU corresponding to a user program performed in the CPU in accordance with a monitor program request signal outputted from the second emulator input/output circuit, a register signal, a register recording signal, and a register judgement signal and for applying a data stored in a register in the CPU corresponding to a user program which is changed by a backed-up monitor program.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: March 2, 1999
    Assignee: Goldstar Electron Co., Ltd.
    Inventor: Dong-Soo Cho
  • Patent number: 5793234
    Abstract: A pulse width modulation (PWM) circuit is disclosed for multiple channels. The circuit allows output pulses of a PWM signal for each channel to be distributed not simultaneously but with a time difference so that the power consumption is temporally distributed.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: August 11, 1998
    Assignee: LG Semicon Co., Ltd.
    Inventor: Dong Soo Cho