Remote control device and remote control system
AssigneeSMK Corporation
InventorsYusuke Machida, Hiroshi Fujikawa
Life of this patent
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Abstract
A control target device is specified using a remote control device with a simple configuration. The remote control device includes: a communication unit that receives a received signal strength from each of a plurality of electronic devices and transmits a predetermined control command to a control target device; and a control target device specifying unit that specifies, as the control target device, a device having a maximum variation of the received signal strength among the plurality of electronic devices. The communication unit includes an antenna disposed at an end of a housing, and the antenna has directivity at which a direction in which the end of the housing is directed to a reception side is a substantially null direction.
Claims8
A remote control device comprising:
- a communication unit that receives a plurality of received signal strengths from each of a plurality of electronic devices and transmits a predetermined control command to one of the plurality of electronic devices being a control target device;
- and
- a control target device specifying unit that specifies, as the control target device, a device among the plurality of electronic devices having a maximum variation of the plurality of received signal strengths among the plurality of electronic devices, wherein
- the communication unit includes a single antenna disposed at an end of a housing, and the antenna has directivity such that one of a first position of the antenna and a second position of the antenna is a substantially null direction with respect to the control target device, and the other of the first position of the antenna and the second position of the antenna is a high gain direction, and
- the first position of the antenna being orthogonal to the second position of the antenna.
A remote control system comprising:
- a plurality of electronic devices;
- and
- a remote control device, wherein
- the plurality of electronic devices each include:
- a first communication unit that receives a radio wave transmitted from the remote control device and transmits a plurality of received signal strengths of the radio wave to the remote control device, the first communication unit including a first antenna;
- and
- a received signal strength acquisition unit that acquires the plurality of received signal strengths,
- the remote control device includes:
- a second communication unit that receives the plurality of received signal strengths from each of the plurality of electronic devices, and transmits a predetermined control command to one of the plurality of electronic devices being a control target device;
- and
- a control target device specifying unit that specifies, as the control target device, a device among the plurality of electronic devices having a maximum variation of the plurality of received signal strengths among the plurality of electronic devices,
- the second communication unit includes a single second antenna disposed at an end of a housing, and the second antenna has directivity such that one of a first position of the second antenna and a second position of the second antenna is a substantially null direction with respect to the control target device, and the other of the first position of the second antenna and the second position of the second antenna is a high gain direction, and
- the first position of the second antenna being orthogonal to the second position of the second antenna.
Dependencies are inferred from the claim text.