Communication system and communication device

摘要

A communication system includes: a remote controller having an input unit inputting user operations and a communication unit performing bidirectional communication, transmitting a remote control code in accordance with the user operation with respect to the input unit from the communication unit; and a host device having a communication unit performing bidirectional communication and a host function unit executing processing corresponding to the remote control code received in the communication unit, wherein the host device transmits a status response from the communication unit in response to a status inquiry transmitted from the communication unit of the remote controller, the remote controller repeatedly executes a status check communication procedure including the transmission of the status inquiry and waiting for receiving the status response after transmitting the remote control code at given time intervals during which the communication unit is in a dormant state.

主权项

1. A communication system comprising:
a remote controller having an input unit to input user operations and a communication unit to perform bidirectional communication, to transmit a remote control code in accordance with the user operation with respect to the input unit from the communication unit; and a host device having a communication unit to perform bidirectional communication and a host function unit to execute processing corresponding to the remote control code received in the communication unit, the host device being configured to transmit a status response from the communication unit in response to a status inquiry transmitted from the communication unit of the remote controller, the remote controller being configured to repeatedly execute a status check communication procedure in an automatic manner, in which the status check communication procedure includes the transmission of the status inquiry and waiting for receiving the status response after transmitting the remote control code at given time intervals during which the communication unit of the remote controller is in a dormant I state, the remote controller being configured to execute an operation when receiving the status response not including transmission information, and the remote controller being further configured to extend a time interval between the transmission of status inquiries according to a number of times of transmitting the status inquiries such that as the number of times increases, the time interval between the transmission of inquiries increases.