Abstract: A control device includes a communication unit, a storage, and a position estimator. The position estimator updates a position of the first wireless communication device by using a difference between first reception quality and third reception quality and a difference between second reception quality and fourth reception quality. A first response signal includes at least the first reception quality calculated when a first control signal is received by the first wireless communication device and the second reception quality of a second response signal calculated when the second response signal is received by the first wireless communication device, and a third response signal includes at least the third reception quality of a third control signal and the fourth reception quality of a fourth response signal calculated when the fourth response signal is received by the first wireless communication device.

Abstract: In a case of receiving, from an audio input device, instruction information including first audio information indicating operation instructions for a cooking appliance when first and second cooking units are executing first and second cooking programs, respectively, operation instructions are recognized from the first audio information. In a case where it is determined that the instruction information includes second audio information related to the first cooking menu information or the second cooking menu information, a control command is transmitted to the cooking appliance to cause the cooking appliance to execute a process corresponding to the operation instructions, without executing a process according to the first cooking program or the second cooking program corresponding to one of the first cooking menu information or the second cooking menu information to which the second audio information is related.

Abstract: Provided are a radio terminal device, a radio base station device, and a channel signal forming method which can prevent quality degradation of the downlink source allocation information by reducing the frequency of the zero information addition process to the downlink resource allocation information when executing communication using an uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. A base station can execute communication using the uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band.