Abstract: An information processing device includes a communicator and a processor. The processor determines an execution procedure including at least one of a connection procedure and a registration procedure. Determination processing includes first processing, second processing, and third processing. In the first processing, a communicator is caused to transmit, to an electronic device, a request signal requesting identification information of the electronic device and identification information of a communication module. In the second processing, a response signal responding to the request signal is received from the communication module via the communicator. In the third processing, the execution procedure is determined based on: whether the response signal has been received; and when the response signal has been received, the identification information included in the response signal.

Abstract: Provided is a taper reamer with which it is possible to achieve an improvement in machining accuracy and machining life. The taper reamer comprises a plurality of cutting edges each having a helical shape provided on the outer periphery of a cutting-edge portion having an external diameter being expanded from a front end toward a rear end thereof, wherein an intertooth angle, defined between each of a pair of the cutting edges adjacently arranged in a circumferential direction, is different from one another at any given reference position, and wherein the plurality of cutting edges each have a helix angle that is different from one another. As the plurality of cutting edges that are unequally partitioned each have the helix angle that is different from one another, a resonance during cutting can be prevented.

Abstract: Provided is a taper reamer with which it is possible to achieve an improvement in machining accuracy and machining life. The taper reamer comprises a plurality of cutting edges each having a helical shape provided on the outer periphery of a cutting-edge portion having an external diameter being expanded from a front end toward a rear end thereof, wherein an intertooth angle, defined between each of a pair of the cutting edges adjacently arranged in a circumferential direction, is different from one another at any given reference position, and wherein the plurality of cutting edges each have a helix angle that is different from one another. As the plurality of cutting edges that are unequally partitioned each have the helix angle that is different from one another, a resonance during cutting can be prevented.

Abstract: A first device is installed at a first location in a first space visible to a user. A second device is installed at a second location in a second space not visible to the user. A control method acquires line-of-sight information indicating a line-of-sight direction of the user from a camera. The line-of-sight direction of the user is determined based on the line-of-sight information. In a case where the line-of-sight direction indicates a third location other than the first location, a second dictionary corresponding to the second device is acquired from a plurality of dictionaries including a first dictionary corresponding to the first device and the second dictionary. Sound data indicating speech of the user is acquired from a microphone, a control command corresponding to the sound data is generated using the second dictionary, and the control command is transmitted to the second device.

Abstract: A first device is installed at a first location in a first space visible to a user. A second device is installed at a second location in a second space not visible to the user. A control method acquires line-of-sight information indicating a line-of-sight direction of the user from a camera. The line-of-sight direction of the user is determined based on the line-of-sight information. In a case where the line-of-sight direction indicates a third location other than the first location, a second dictionary corresponding to the second device is acquired from a plurality of dictionaries including a first dictionary corresponding to the first device and the second dictionary. Sound data indicating speech of the user is acquired from a microphone, a control command corresponding to the sound data is generated using the second dictionary, and the control command is transmitted to the second device.