Abstract:
A physiological signal detection device has a battery disposed in the physiological signal detection device, a first input terminal, a second input terminal, and a charging detection terminal A physiological signal detection circuit generates a physiological signal according to a detection result of the first input terminal and the second input terminal A charging control circuit is electrically coupled to the first input terminal, the second input terminal and the charging detection terminal, wherein, when the first input terminal and the second input terminal are coupled to a power supply supplied by a charging device, the charging detection terminal receives a charging indication signal of the charging device and according to the charging indication signal the charging device is enabled so as to charge the battery with the power supply.
Abstract:
A laptop computer includes a base, a touch screen, a first hinge structure and a second hinge structure. The first hinge structure is pivotally connected with a side of the base. The second hinge structure is pivotally connected with the first hinge structure. The second hinge structure includes a locking part. The locking part detachably fastens to the touch screen. When the locking part fastens to the touch screen and the angle between the touch screen and the base is within 0 degree and a predetermined angle, the second hinge structure rotates relative to the first hinge structure. When the locking part fastens to the touch screen and the angle between the touch screen and the base is larger than the predetermined angle, the first hinge structure and the second hinge structure rotate synchronously relative to the base.
Abstract:
A computer system and a power management method thereof are disclosed. The computer system comprises a smart charger and an embedded controller (EC). The smart charger has a voltage turbo boost (VTB) function. The EC enables or disables the VTB function to protect a battery from damage according to a current remaining capacity and a battery decline ratio of the battery.
Abstract:
A method for controlling a sensor includes steps of: sensing an object for determining whether the object is within a sensing range of the sensor; if it is determined that the object is not within the sensing range, the sensor is turned into a non-active mode for a predicted non-active time, wherein the predicted non-active time is calculated based on a predetermined or a historical non-active time; sensing the object for determining whether the object is within the sensing range during the predicted non-active time; and if it is determined that the object is not within the sensing range during the predicted non-active time, the sensor is turned into a sleep mode for an predicted sleep time, wherein the predicted sleep time is calculated based on the predetermined non-active time and a predetermined sleep time, or is calculated based on the historical non-active time and a historical sleep time.
Abstract:
A head mounted display system comprises a lens set, an image capturing unit and a processing circuit. The lens set comprises a first liquid crystal panel and a second liquid crystal panel. The first liquid crystal panel comprises first liquid crystal blocks, and the second liquid crystal panel comprises second liquid crystal blocks. The image capturing unit captures front image data having a first dynamic range. The processing circuit performs tone mapping according to the front image data to generate mapping image data having a second dynamic range smaller than the first dynamic range. The processing circuit calculates regulated values according to the mapping image data. A driving circuit drives the first liquid crystal blocks and the second liquid crystal blocks according to the regulated values, respectively.
Abstract:
A detaching mechanism includes at least one sloping portion, a groove, an elastic mechanism, and a latch portion. The sloping portion is disposed on a cover which detachably covers an outer surface of a shell. The sloping portion has a sloping surface. The groove is disposed on the shell. The latch portion is slidably received in the groove to slidably ride on the sloping surface of the sloping portion, such that the sloping portion is displaced away from the shell. The elastic mechanism connects the latch portion to the shell.
Abstract:
An electronic device includes a connection interface, a voltage regulation unit, a storage unit, a charging unit, a processing unit, and a switching unit. The switching unit is coupled to the storage unit, the processing unit, and the connection interface. When the electronic device is in a power-exhaustion state and an external device having a charging function is coupled to the connection interface to provide a first supplying voltage to a power pin of the connection interface, the voltage regulation unit transforms the first supplying voltage to a first operation voltage to power the storage unit and the switching unit, and the switching unit couples the storage unit to the connection interface to transmit device information to the external device. When the external device provides a second supplying voltage to the power pin in response to the device information, the electronic device is in a charging state.
Abstract:
A centrifugal fan includes a housing, a driving device, and a fan impeller. The housing has a hollow chamber which has a central axis. The driving device is located at the central axis of the hollow chamber. The fan impeller is disposed in the hollow chamber and includes a hub, several blades, and several fins. The hub is connected with the driving device. The blades are disposed around the hub. Each blade has a windward surface and a leeward surface. Each fin extends from the windward surface of one of the blades, outward by an arc surface from the windward surface starting from a location near the central axis, and further extends to the leeward surface of an adjacent blade.
Abstract:
A method of power management of a computer device includes a number of steps. When a decision element determines that the computer device must enter a power saving mode, the decision element generates a power saving mode signal. When an embedded controller detects the power saving mode signal, the embedded controller determines whether an NFC transceiving module is sending or receiving information. If the NFC transceiving module is sending or receiving information, the embedded controller postpones entering into the power saving mode by the computer device until the NFC transceiving module finishes sending or receiving information.
Abstract:
A rack system for a server includes a number of server units, which includes first to the third sets of server units, voltage converter, first to third power supply circuits. The voltage converter receives and converters a three-phase alternating current (AC) power signal to provide first to third single-phase power signals. The first to the third sets of power supply circuits respectively provides first to third direct current (DC) power signals according to the first to the third single-phase power signals. The first set to the third set of server units is respectively powered by first to the third DC power signals or respectively powered by first part, second part, and third part of the first to the third DC power signals.