Portable computer and control method therefor
AssigneeSamsung Electronics Co., Ltd.
InventorSeob Cho
Life of this patent
Estimating the term…
Abstract
A portable computer including a display unit, and a video processor generating and supplying a first video signal to the display unit, includes a video adaptor outputting the first video signal to the outside, and receiving a second video signal from an external input source, and a control unit for supplying the second video signal to the display unit when the external input source is connected to the video adaptor. Thus, the present invention provides a portable computer and a control method, which can receive a video signal from an external input source through one existing output port for outputting a video signal without adding a separate input port.
Claims31
A computer system comprising a display unit, and a video processor to supply a first video signal to the display unit, the computer system comprising:
- a video adaptor arranged to supply the first video signal to the outside, and to receive a second video signal from an external input source;
- and
- a control unit to supply the second video signal to the display unit, when the external input source is connected to the video adaptor.
A control method for a portable computer comprising a display unit, a video processor generating and supplying a first video signal to the display unit, a video adaptor outputting the first video signal to the outside and receiving a second video signal from an external input source, comprising:
- determining whether an external device connected to the video adaptor is the external input source or an external output device;
- and
- supplying the second video signal to the display unit, when the external input source is determined to be connected to the video adaptor.
A computer system comprising:
- a display panel to provide a visual display of one of a first video signal and a second video signal;
- a video processor to generate and supply the first video signal to the display panel;
- a video adaptor arranged to supply the first video signal to the outside and to receive the second video signal from an external device;
- and
- a control unit configured to control selection between the first video signal and the second video signal for a visual display, via the display panel,
- wherein the control unit selects the second video signal to the display panel, when the external input source is connected to the video adaptor.
Dependencies are inferred from the claim text.