Wireless communication apparatus
AssigneeCanon Kabushiki Kaisha
InventorShinji Tsuchida
Life of this patent
Estimating the term…
Abstract
A wireless communication apparatus automatically disconnects a communication channel between a master device and a slave device when a received electric field intensity becomes lower than a predetermined level, thereby preventing unnecessarily prolonged communication when the field intensity is excessively low. The received field intensity is detected and if in the course of communication, the reception field intensity becomes lower than a reference level a request for confirmation of the communication status is transmitted to the slave device. In accordance with the response from the slave device to the request for confirmation, the wireless channel may be disconnected.
Claims17
A wireless communication apparatus comprising:
- connection means for connecting a selected one of a plurality of channels with a party;
- transmission means for transmitting a request for confirmation to the party connected via the selected one of the plurality of channels in the form of a wireless signal, if a reception state becomes worse than a reference state while the party is connected via the selected one of the plurality of channels;
- and
- decision means for deciding to continue the connection of the selected one of the plurality of channels with the party when a response to the request for confirmation is received from the party.
A control method for wireless communication, comprising the steps of:
- performing a wireless communication with a party;
- transmitting a request for confirmation to a party in the course of communication in the form of a wireless signal if the reception state becomes worse than a reference state in the course of communication;
- and
- deciding to continue the wireless communication with the party when a response to the request for confirmation is received from the party.
A master device effecting wireless communication with a slave device, comprising:
- forming means for forming a communication path to a communication partner of the slave device;
- transmission means for transmitting a request for confirmation to the slave device if the reception state of the wireless signal from the slave device becomes worse than a reference state in the course of communication;
- and
- decision means for deciding to continue the communication path formed by said forming means when a response to the request for confirmation is received from the slave device.
Dependencies are inferred from the claim text.