Samsung Electronics Co., Ltd.

Il Kang Na

Gye Young Lee

Kwan Woo Song

Dong Yun Hawng

A smart home system using a portable device in which a gateway function is installed in the portable device to provide a smart home service using a multiplex gateway, and a control method thereof is provided. The smart home system includes one or more portable devices and one or more home appliances located in a home, each of the one or more portable devices and one or more home appliances having a gateway, a home network to interconnect the one or more portable devices and the one or more home appliances, and a master device selected from among the one or more portable devices or the one or more home appliances, the master device activating the gateway thereof to connect the home network with an external communication network, wherein the master device transfers a home appliance control command to a corresponding one of the one or more home appliances.

Smart home system using portable device

A test pattern generating apparatus and method of a frequency converter in a VCR, in which an on-screen display (OSD) circuit is used to output a test pattern instead of using an internal test pattern generator. The apparatus includes a microprocessor for outputting data, clock, and strobe signals to the OSD circuit in response to the operation of a test switch, video and audio muting circuits for muting the video and audio signals input signals to the frequency converter in response to the operation of the test switch, and the OSD circuit for generating the test pattern in accordance with an output of the microprocessor.

Growing community of inventors

Seoul, South Korea

Il Kang Na