Communication apparatus
AssigneeCanon Kabushiki Kaisha
InventorTachio Ono
Life of this patent
Estimating the term…
Abstract
A communication apparatus comprises a connecting unit for connecting with a power line, a circuit for receiving a power supply through the connecting unit, and a communicating unit for communicating with an external apparatus through the connecting unit, a controlling unit for determining whether or not to permit a power supply stop, in accordance with the communicating unit receiving information on a request for the power supply stop, and controlling the communicating unit to transmit response data corresponding to the determination.
Claims12
A communication apparatus, comprising:
- a connecting unit that connects with a power line;
- a receiving unit that receives a power supply through the connecting unit;
- a communicating unit that receives from an external apparatus, which is connected with the power line, through the connecting unit a command by using a power line communication and transmits to the external apparatus through the connecting unit a response to the command by using the power line communication;
- and
- a controlling unit that determines whether or not to permit a power supply stop, in accordance with the communicating unit receiving from the external apparatus notification to stop the power supply through the connecting unit, and controls the communicating unit such that the communicating unit transmits to the external apparatus through the connecting unit response data corresponding to the determination as a response to the notification to stop the power supply,
- wherein the controlling unit controls, in accordance with a determination to permit the power supply stop, the communicating unit to transmit to the external apparatus, from which the notification to stop the power supply is transmitted, through the connecting unit response data indicating a permission for the power supply stop and information for setting a schedule which causes a designated function to be executed at a designated time, and
- wherein the controlling unit controls, in accordance with a start of the power supply, the communicating unit to receive from the external apparatus through the connecting unit the information for setting the schedule.
A communication method of receiving a power supply from a power line and communicating through the power line between a communication apparatus connected with the power line and an external apparatus connected with the power line, comprising the steps of:
- receiving from the external apparatus through the power line notification to stop the power supply by the communication apparatus, the communication apparatus receiving from the external apparatus a command by using a power line communication and transmitting to the external apparatus a response to the command by using the power line communication;
- determining whether or not to permit a power supply stop, in accordance with the notification, which is received from the external apparatus through the power line by the communication apparatus, to stop the power supply;
- transmitting, from the communication apparatus to the external apparatus through the power line, response data corresponding to a result of the determination as a response to the notification to stop the power supply;
- in accordance with a determination to permit the power supply stop, transmitting to the external apparatus through the power line, in addition to the response data, information for setting a schedule which causes a designated function to be executed at a designated time;
- and
- in accordance with a start of the power supply, receiving from the external apparatus through the power line the information for setting the schedule.
Dependencies are inferred from the claim text.