Abstract: A portable radio-controlled watch includes a watch glass, an antenna electrode that is formed on a backside of a peripheral edge of the watch glass so as to be along the peripheral edge, a receiving circuit, an antenna connecting line that is at least a part of a connection circuit connecting the antenna electrode with the receiving circuit, the antenna connecting line being directly connected to a back surface of the antenna electrode and extending in a direction away from the watch glass, and a dielectric that is disposed below the antenna electrode and covers at least a part of the antenna electrode in a plan view.

Abstract: A comparator circuit according to the present disclosure includes: a first switch section that selectively takes in a signal voltage; a second switch section that selectively takes in a control waveform; a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section; a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage; and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.

Abstract: In various embodiments, degradation of epoxy within packages for ultraviolet light-emitting devices is reduced or substantially eliminated via package venting, prevention of transmission of ultraviolet light to one or more regions of epoxy utilized in the package, and/or utilization of packaging schemes that reduce or avoid utilization of epoxy and/or specific metals.

Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.

Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.

Abstract: A comparator circuit includes a differential circuit unit which detects a difference between two input signals, a current supply unit which supplies a current to the differential circuit unit, and a control unit which detects an operation timing of the differential circuit unit and controls the current supplied to the differential circuit unit by the current supply unit according to a detection result thereof.

Abstract: A comparator circuit includes a differential circuit unit which detects a difference between two input signals, a current supply unit which supplies a current to the differential circuit unit, and a control unit which detects an operation timing of the differential circuit unit and controls the current supplied to the differential circuit unit by the current supply unit according to a detection result thereof.

Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant. A barrier layer is disposed between the light-emitting device and the encapsulant and is configured to substantially prevent UV light emitted by the light-emitting device from entering the encapsulant.

Abstract: A comparator circuit includes a differential circuit unit which detects a difference between two input signals, a current supply unit which supplies a current to the differential circuit unit, and a control unit which detects an operation timing of the differential circuit unit and controls the current supplied to the differential circuit unit by the current supply unit according to a detection result thereof.

Abstract: In a satellite radio-controlled wristwatch, processing ranging from a user's operation through a reception operation to the completion of time adjustment is rapidly accomplished.

Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant and having a rigid lens. Downward forces is applied while the encapsulant is at least partially cured to substantially prevent partial or full detachment of the rigid lens from the light-emitting device, and/or substantially suppress formation of bubbles between the light-emitting device and the rigid lens.

Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant. A barrier layer is disposed between the light-emitting device and the encapsulant and is configured to substantially prevent UV light emitted by the light-emitting device from entering the encapsulant.

Abstract: A comparator circuit according to the present disclosure includes: a first switch section that selectively takes in a signal voltage; a second switch section that selectively takes in a control waveform; a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section; a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage; and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.

Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant. A barrier layer is disposed between the light-emitting device and the encapsulant and is configured to substantially prevent UV light emitted by the light-emitting device from entering the encapsulant.

Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.

Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant. A barrier layer is disposed between the light-emitting device and the encapsulant and is configured to substantially prevent UV light emitted by the light-emitting device from entering the encapsulant.

Abstract: In a satellite radio-controlled wristwatch, processing ranging from a user's operation through a reception operation to the completion of time adjustment is rapidly accomplished.

Abstract: A comparator circuit includes a differential circuit unit which detects a difference between two input signals, a current supply unit which supplies a current to the differential circuit unit, and a control unit which detects an operation timing of the differential circuit unit and controls the current supplied to the differential circuit unit by the current supply unit according to a detection result thereof.

Abstract: An actuator included in a head substrate of an ink-jet head receives, with an electrode on the surface of the actuator, power fed from the wiring of a wiring substrate arranged opposite the head substrate. A first electrode of the wiring substrate is electrically connected to the wiring, and protrudes to the side of the head substrate. A second electrode is electrically connected to the electrode on the surface of the actuator, protrudes to the side of the wiring substrate and is electrically connected to the first electrode. The head substrate and the wiring substrate are adhered to each other through an adhesive layer such that a space to which the first electrode and the second electrode are exposed is hermetically sealed. The hermetically sealed space is in a vacuum state or is filled with a gas containing a predetermined amount of water or less.

Abstract: Disclosed herein is a signal line drive circuit including: a positive voltage supply section; a negative voltage supply section; line buffers; a positive selector; a negative selector; and an output selector, wherein the positive selector is arranged on one side, the negative selector on other side, the positive voltage supply section on the one side, and the negative voltage supply section on the other side, in such a manner that they are symmetrical with respect to the line buffers.