Patent ID: 7929996

Claim:
An electronic device system comprising: a display device; and an electronic device to and from which the display device can be attached and detached, wherein the display device includes: a display screen which displays a video based on video information sent from the electronic device; a first detection unit which detects whether the display device is attached to the electronic device; a first wireless communication unit which receives the video information via a wireless communication channel when the first detection unit detects that the display device is detached from the electronic device; a first wired communication unit which receives the video information via a wired communication channel, when the first detection unit detects that the display device is attached to the electronic device; and a control unit which transmits device information assigned to the first wireless communication unit to the electronic device via the wired communication channel when the first detection unit detects that the display device is attached to the electronic device, and wherein the electronic device includes: a video processing unit which receives television broadcast information and generates the video information based on the television broadcast information; a network connecting unit connected to a wide area network (WAN); a second detection unit which detects whether the display device is attached to the electronic device; a second wireless communication unit which simultaneously performs a plurality of information communications, the information communications including transmission of the video information to the display device and connection to the WAN from an external electronic device; a second wired communication unit which transmits the video information to the display device via the wired communication channel when the second detection unit detects that the display device is attached to the electronic device; an acquisition unit which includes a device information registration portion, and acquires the device information assigned to the first wireless communication unit via the wired communication channel from the display device to write the device information into the device information registration portion when the second detection unit detects that the display device is attached to the electronic device; and a communication control unit which controls the second wireless communication unit to perform the transmission of the video information to the display device with a higher priority as compared to the connection to the WAN, when the device information constitutes the data most recently written into the device information registration portion.