Abstract: A piezoelectric device includes a piezoelectric substrate, a first excitation electrode, a first extraction electrode, a second excitation electrode, a second extraction electrode, a container, and a first unnecessary vibration suppression electrode, and/or a second unnecessary vibration suppression electrode. The first unnecessary vibration suppression electrode is disposed on a region of the first principal surface opposed to the second extraction electrode, at a region separated from the first excitation electrode by a distance d1. The first unnecessary vibration suppression electrode has an electric potential identical to the second excitation electrode. The second unnecessary vibration suppression electrode is disposed on a region of the second principal surface opposed to the first extraction electrode, at a region separated from the second excitation electrode by a distance d2. The second unnecessary vibration suppression electrode has an electric potential identical to the first excitation electrode.

Abstract: To provide an oscillation module which is able to improve an input level by passing signals in a main signal band while removing near noise and far noise. An oscillation module is provided with an OCXO, an amplifier, and a noise elimination filter. The noise elimination filter includes: a BPF passing a signal in the main signal band and eliminating far noise with respect to the main signal band; an L-BEF eliminating near noise in a low frequency band with respect to the main signal band; and an H-BEF eliminating near noise in a high frequency band with respect to the main signal band. Each filter is configured with a crystal filter.

Abstract: To provide an oscillation module which is able to improve an input level by passing signals in a main signal band while removing near noise and far noise. An oscillation module is provided with an OCXO, an amplifier, and a noise elimination filter. The noise elimination filter includes: a BPF passing a signal in the main signal band and eliminating far noise with respect to the main signal band; an L-BEF eliminating near noise in a low frequency band with respect to the main signal band; and an H-BEF eliminating near noise in a high frequency band with respect to the main signal band. Each filter is configured with a crystal filter.

Abstract: When a Doppler sensor (2) itself receives a change in a reflected wave generated by reflection of a microwave, which is transmitted by the Doppler sensor (2), to a detected object and detects movement of the object, an authentication processing unit (3) performs ID authentication processing. A control unit (4) gives an execution instruction for threatening processing to a threatening executing unit (10) on the basis of an output of authentication processing means.

Abstract: It is an object of the invention to prevent an inconsistency from occurring between settings in a main body apparatus and plural remote controllers in a remote control system in which a setting of the main body apparatus can be changed from the remote controllers. The remote control system includes: the main body apparatus and the plural remote controllers that changes a setting in the main body apparatus from remote locations. The main body apparatus includes: a changing apparatus holding unit; a main body side communication possibility judging unit that judges whether communication with the other remote controllers excluding the remote controller, which has changed the setting to the present setting, is possible; and a setting notifying unit.