Abstract:
A surveillance method monitors a monitored area using a monitoring station. The monitoring station in electronic communication with an actuator, an image capture device, and a plurality of motion sensors. The presence of motion in the monitored area is detected in real-time using the motion sensors. When the motion is detected, a target region in the monitored area where the motion is detected is determined, and a control signal is sent to the actuator according to the target region to control the image capture device to aim at the target region using the actuator. Real-time images of the target region are captured, and stored in a storage system of the monitoring station.
Abstract:
A portable electronic device includes an audio port, a universal serial bus (USB) circuit, an audio circuit, a detecting unit, a switch, and a microcontroller. The detecting unit is connected to the audio port. The detecting unit generates a detecting signal in response to detection of either the earphone/microphone or the USB apparatus being connected to the audio port. The microcontroller is connected to the detecting unit and the switch. The microcontroller selects the audio circuit or the USB circuit to the audio port by the switch according to the detecting signal.
Abstract:
A motherboard includes a switching circuit, a serial advanced technology attachment (SATA) connector connected to a hard disk drive (HDD), a first serial attached small computer system interface (SCSI) (SAS) connector, and a connector connected to an SAS card. A second SAS connector is arranged on the SAS card and connected to the first SAS connector. The switching circuit is connected to the SATA connector and the first SAS connector. The switching circuit is disconnected from the first SAS connector if the HDD is an SATA HDD. The motherboard communicates with the HDD through the switching circuit and the SATA connector. The switching circuit is connected to the first SAS connector if the HDD is an SAS HDD. The motherboard communicates with the HDD through the SAS card, the first SAS connector, the switching circuit, and the SATA connector.
Abstract:
A cycle basis is efficiently determined for a directed graph. A first depth-first search of the directed graph classifies each of the edges of the directed graph to have a type that is one of a within-tree type for an edge within a tree of the first depth first search, a forward type for an edge skipping forward along the tree, a back type for an edge directed back along the tree, or a cross type for an edge between two subtrees of the tree. A second depth-first search of the directed graph determines a respective cycle for each of the edges of the back type. A third depth-first search of the directed graph determines a respective cycle for each of the edges of the cross type that is included a cycle. The basis is output the basis that specifies each of the respective cycles.
Abstract:
A circuit includes a work-power module, an electronic component, a switching apparatus, and a power control unit. The power control unit includes an input pin connected to the work-power module, an output pin connected to the electronic component, and a control pin connected to the switching apparatus. The switching apparatus is capable of controlling the status of the power control unit. Upon the condition that the power control unit is turned on, the work-power module is capable of supplying power to the electronic component. Upon the condition that the power control unit is turned off, the work-power module is not capable of supplying power to the electronic component.
Abstract:
An electromagnetic interference (EMI) shielding and grounding structure of an electrical apparatus and the applications are provided, wherein the EMI shielding and grounding structure comprises a framework, a shell, and a conducting wire. The framework is electrically connected to the grounding of the apparatus. The conducting wire is wrapped with conductive cloth. The shell electrically connected with the framework is located between an electromagnetic source and the wire, wherein an electrical contact is formed between the shell and the conductive cloth.
Abstract:
A connecting apparatus of a notebook computer display card is described. The connecting apparatus has a motherboard and a dual in-line module slot. The dual in-line module slot for coupling to a notebook computer display card is disposed on a surface of the motherboard. The socket has an insertion opening parallel to the surface of the motherboard so that the display card and the motherboard are parallel to each other after the display card is assembled on the motherboard. The connecting apparatus further has a heat sink device to reduce a working temperature of the display card. The heat sink device may be configured between the motherboard and the display card. Alternatively, the heat sink device may be disposed on an outside of the display card so that the display card is configured between the heat sink device and the motherboard.
Abstract:
A fan control system includes first and second fan control units. Each fan control unit includes a connector, a delay circuit, a switch unit, and a control circuit. Each connector is connected to a corresponding fan interface to receive a voltage signal. The delay circuit of the first fan control unit delays the voltage signal for a first period of time, and turns on the corresponding switch unit after the first period of time. The delay circuit of the second fan control unit delays the voltage signal for a second period of time, and turns on the corresponding switch unit after the second period of time. Each control circuit receives the corresponding delayed voltage signal, to start the corresponding fan. The first period of time is unequal to the second period of time.
Abstract:
A notebook computer includes a display device, a main body, a pivoting component, and a foldable device. The display device includes a connection end. The pivoting component is pivoted to the connection end. The foldable device includes two arm components, each arm component includes a first supporting pole and a second supporting pole. Each first supporting is rotatably connected to the main body. Each second supporting pole is rotatably connected between the pivoting component and the first supporting pole.
Abstract:
An electronic device includes an enclosure. The enclosure includes a motherboard area and a power supply area adjacent to the motherboard area, which are both located at a first end of the enclosure, a hard disk drive area for mounting hard disk drives at a second end of the enclosure, and a fan area arranged between the motherboard area and the hard disk drive area.