Samsung Electronics Co., Ltd.

Hae-Jin Hwang

Du-Il Kim

Seung-gi Shin

Hong-Sam Kim

Disclosed are a computer system and an image processing method, that can easily reduce the EMI (electromagnetic interference), introduced into a liquid crystal display using the spread spectrum. The computer system includes a graphic processing unit for converting the image signal provided from at least either of a central processing unit and a memory into a signal that can be displayed on a screen, and a spread spectrum unit, provided between the graphic processing unit and the liquid crystal display, for modulating a frequency of a clock signal from a clock generator within a predetermined frequency range.

Computer system and image processing method therefor

A multiple-user computer system provides a respective remote control device to each one of a plurality of multiple users. Each remote control device has a plurality of button switches and a memory for storing a password datum, and transmits a remote-control wireless signal including a password datum to a wireless receiving panel of a computer in response to an input of a button switch. The wireless receiving panel has a memory for storing passwords provided to each of the multiple users. The panel receives a wireless signal from a remote controller, and compares a password of the remote controller included in the wireless signal with passwords of the multiple users stored in the memory. If passwords match, the system is controlled in response to the remote control signal. Using the remote control, a user can utilize a computer system, convert it to a sleep mode, wake it up from a sleep mode, and execute designated application programs.

Multiple user computer system and method for remote control thereof

A computer system for controlling a screen display state of a monitor according to input of a password for protecting confidential information from unauthorized users when a computer system is between a standby mode and a suspend mode. The computer system comprises a power controller for converting an operation mode of a computer system into a power management mode which represents one of a power-on mode, a standby mode, a graphic off mode, and a suspend mode according to an access state of the computer system; and a screen controller for converting a screen display state of the display according to a designated one of the power management mode, and controlling the screen display state of the monitor according to input of a password if the computer system is accessed in the graphic off mode.

Computer system and method for controlling screen display of a monitor

A device and method for automatically selecting a CPU (central processing unit) driving frequency may include one or more of frequency selecting apparatus that receives a control signal, and outputs a selection signal, clock supply apparatus that receives the selection signal from the frequency selecting apparatus and outputs an external supply frequency, a CPU that receives the external supply frequency from the clock supply apparatus and the selection signal from the frequency selecting apparatus, and operates by determining the internal operation frequency, and frequency selection controlling apparatus that receives an output signal from the CPU and outputs the signal controlling the frequency selecting apparatus. Since the present invention selects and supplies the appropriate frequency to the CPU after identifying an ID (identification) of the CPU, it has no trouble in selecting an appropriate frequency.

Device and method for automatically selecting a central processing unit

A power supply for automatically supplying a proper voltage to a central processing unit, includes: a voltage detecting pin of the central processing unit for outputting an operating voltage indicating signal; a selector for causing corresponding operating voltage to be inputted to the central processing unit by sensing the voltage detecting pin state outputted by the central processing unit; a power supply which supplies a proper voltage to the central processing unit; and a controller which outputs a control signal so as to supply the proper operating voltage to the central processing unit by determining the type of the central processing unit.

Growing community of inventors

Suwon, South Korea

Hae-Jin Hwang