Sharp Kabushiki Kaisha Corporation

Yoichi Ohgami

Akira Shibata

Kazuya Oyama

Kohzoh Hirata

A relay device includes a first signal reception unit receiving a signal from the outside, a first radio communication unit transmitting the signal by radio that is received by the first signal reception unit, a second radio communication unit provided separately from the first radio communication unit and transmitting/receiving a signal by radio, a detection unit detecting transmission/reception of the signal by the second radio communication unit, and a first inhibition unit inhibiting, during a period in which transmission/reception of the signal by the second radio communication unit is detected by the detection unit, transmission of the signal by the first radio communication unit. Thus, communication by means of a plurality of communication units can efficiently be accomplished.

Method, system and recording medium using a relay device for detecting and inhibiting communication

Various kinds of broadcast TV signals can be watched on display devices at desirable places (rooms). High-frequency signals of CS broadcast, BS broadcast and terrestrial broadcast are received and inputted via a lead wire to a retransmission device. A high-frequency signal of a cable television broadcast is directly inputted to the retransmission device. The retransmission device subsequently converts high-frequency signals of incoming different broadcasts into common high-frequency signals and transmits them in time-series. Then, the common high-frequency signals are transmitted by wired or wireless means to a plurality of display devices that may be installed in different rooms or are portable.

Growing community of inventors

Yamatotakada, Japan

Yoichi Ohgami