Abstract: The series-type charging device comprises an input-terminal, an output-terminal, a control unit and a detector unit. The input-terminal receives an input power. The output-terminal connects the input-terminal and another series-type charging device, and provides a next-level power. The control unit connects the input-terminal and the output-terminal, and stores an upper limit value of the input power, and obtains an output power by shunt of the input power. The control unit generates a charging power according to the output power, and charges a battery. The detector unit is connected between the input-terminal and the output-terminal to measure a supply power of the input power. Wherein, charging the battery of another series-type charging device first when another series-type charging device is connected with the output-terminal and the remaining power is arranged for the other series-type charging device.

Abstract: A waterproof and dustproof structure is applied to a predetermined hole of a circuit board. A connection end of a connector could penetrate the predetermined hole. Moreover, the circuit board has a first surface and a second surface. The waterproof and dustproof structure can cover up the predetermined hole to isolate the first surface and the second surface. The interferences on the first surface may not move to the second surface through the predetermined hole. Therefore, when the connection end of the connector passes through the predetermined hole, the predetermined hole on the circuit board can be sealed via the waterproof and dustproof structure so as to achieve the goal of waterproof and dust prevention.

Abstract: An activation system is applied to a computer apparatus. An activation signal is received by the computer apparatus to implement a booting action. The system comprises an external power adapter and a detection unit. An external power is received by the external power adapter. The external power then is provided to the computer apparatus. Meanwhile, a power supply signal then is generated by the external power adapter. The power supply signal is detected by the detection unit. The activation signal is outputted by the detection unit after detecting the power supply signal, so as to boot the computer apparatus through the external power.

Abstract: A hook structure is disclosed in the invention, which can be implemented to a housing for a monitor in a portable electronic device. The housing is comprised of a front cover and a rear cover, and the hook structure comprises at least a buffer material, hook bodies, and pressing plates. The buffer material is disposed at an inner side of the front cover and is adjacent to a through opening; each hook body has a first horizontal plate and a second horizontal plate; a lateral edge of the first horizontal plate extends into a fastening hook and penetrates through the through opening, so that the second horizontal plate is pressed tightly against the buffer material around the through opening. Each pressing plate is used to press against the second horizontal plate, so that each hook body is fixed onto the front cover inside of the housing.

Abstract: The present invention discloses a network switching apparatus and a network switching method applied for switching between a wired network unit and a wireless network unit of a computer system. Based on the network switching method, the network switching apparatus includes a wired network unit, a wireless network unit and a control unit. The wired network unit includes a plug/unplug interface responsible for a wired network transmission. The wireless network unit is responsible for a wireless network transmission. The control unit includes a logic control circuit and a logic control unit or an embedded controller, and a basic input/output system (BIOS) of the computer system is used for pre-selecting setup options of the computer system, and detecting whether a network socket is plugged in or unplugged from a plug/unplug interface, so as to turn on or off the wired network transmission and wireless network transmission.

Abstract: A waterproof and dustproof structure is applied to a predetermined hole of a circuit board. A connection end of a connector could penetrate the predetermined hole. Moreover, the circuit board has a first surface and a second surface. The waterproof and dustproof structure can cover up the predetermined hole to isolate the first surface and the second surface. The interferences on the first surface may not move to the second surface through the predetermined hole. Therefore, when the connection end of the connector passes through the predetermined hole, the predetermined hole on the circuit board can be sealed via the waterproof and dustproof structure so as to achieve the goal of waterproof and dust prevention.

Abstract: A hook structure is disclosed in the invention, which can be implemented to a housing for a monitor in a portable electronic device. The housing is comprised of a front cover and a rear cover, and the hook structure comprises at least a buffer material, hook bodies, and pressing plates. The buffer material is disposed at an inner side of the front cover and is adjacent to a through opening; each hook body has a first horizontal plate and a second horizontal plate; a lateral edge of the first horizontal plate extends into a fastening hook and penetrates through the through opening, so that the second horizontal plate is pressed tightly against the buffer material around the through opening. Each pressing plate is used to press against the second horizontal plate, so that each hook body is fixed onto the front cover inside of the housing.

Abstract: The present invention is to provide a water-and-dust proof structure for a notebook computer heat sink having a chip set and a heat sink module, characterized by comprising (between the chip set and the heat sink module): a separation plate comprising a receptacle having a prescribed hole therein, the separation plate cooperating with a casing of the notebook computer to form a space inside the notebook computer so that the heat sink module and the chip set on the main board of the notebook computer are separatedly located in different spaces inside the notebook computer and closely contact each other through the receptacle of the separation plate; a resilient frame formed to cooperate with the receptacle of the separation plate and having a prescribed hole therein; a resilient piece formed to cooperated with the prescribed hole and having multiple resilient curve portions; and arranging the resilient frame into the receptacle of the separation plate, the heat sink module cooperating with the resilient piece

Abstract: The present invention is to provide a water-and-dust proof structure for a notebook computer heat sink having a chip set and a heat sink module, characterized by comprising (between the chip set and the heat sink module): a separation plate comprising a receptacle having a prescribed hole therein, the separation plate cooperating with a casing of the notebook computer to form a space inside the notebook computer so that the heat sink module and the chip set on the main board of the notebook computer are separatedly located in different spaces inside the notebook computer and closely contact each other through the receptacle of the separation plate; a resilient frame formed to cooperate with the receptacle of the separation plate and having a prescribed hole therein; a resilient piece formed to cooperated with the prescribed hole and having multiple resilient curve portions; and arranging the resilient frame into the receptacle of the separation plate, the heat sink module cooperating with the resilient piece

Abstract: A notebook computer input equipment having waterproof and dustproof structure includes an input equipment including input keys such as mouse function keys, reel keys and touchpad. A suitable compressed frame is located under the input keys and provided with a prescribed hole for exposing the touchpad on middle part. A suitable cushion is located under the compressed frame and provided with a prescribed opening for exposing the touchpad. A suitable compressed bar is located under the compressed frame and above the touchpad and provided with a prescribed aperture for exposing the touchpad. A notebook palmrest is provided with a prescribed cavity. Thus, a notebook computer input equipment having the waterproof and dustproof effects is achieved.

Abstract: A motor speed detecting device for use between a motor and a system is provided. A motor speed detecting device for use between a motor and a system includes a first input terminal and a second input terminal, wherein the first and second input terminals are electrically connected respectively to a constant voltage potential and a ground potential for continuously receiving an electrical power; and a third input terminal electrically connected between the motor and the system, wherein the third input terminal receives a control signal sent by the system for controlling a speed of the motor. A motor speed control method using in a motor speed detecting device between a motor and a system is also provided.

Abstract: A cooling apparatus for an integrated circuit. The cooling apparatus comprises cooling fan means, a control circuit and heat pipe means. The control circuit determines a spinning speed of the cooling fan and an operation performance mode of the integrated circuit according to the load and the temperature of the integrated circuit, the ambient temperature and a reference temperature. Within a tolerable range of the output of adder means, the heating pipe means continues dispelling heat of the integrated circuit without turning on the cooling fan. While the output of the adder means exceed the tolerable range, the fan is turned on to enforce the heat dissipation.

Abstract: A motor speed detecting device for use between a motor and a system is provided. A motor speed detecting device for use between a motor and a system includes a first input terminal and a second input terminal, wherein the first and second input terminals are electrically connected respectively to a constant voltage potential and a ground potential for continuously receiving an electrical power; and a third input terminal electrically connected between the motor and the system, wherein the third input terminal receives a control signal sent by the system for controlling a speed of the motor. A motor speed control method using in a motor speed detecting device between a motor and a system is also provided.

Abstract: A computer system having a sensing circuit for detecting a user status and switching a computer accordingly as well as an automatic networking capability. As a user walks into a sensing area, the computer starts up automatically so that some waiting time can be saved. Similarly, when the user walks away from the sensing area, the computer shut down automatically so that some power can be saved. The computer system includes a signal generator that sends out a transmission signal for determining if a user is within a detectable region. A signal receiver emits an appropriate status signal after picking up the transmission signal from the detection region. The status signal is processed by various devices including an analogue/digital converter, a delay unit, a logic circuit and a microprocessor before arriving at a power-triggering mechanism to switch on or off the computer accordingly.

Abstract: A structure and a circuit of an input/output (I/O) port bar to connect between a computer and a computer peripheral. The structure of the I/O port bar has a laminate, a loop and a sliding member (with a pushing portion, a first protrusion portion and a second protrusion portion). Thus constructed, the connecting cable can be restored to the inside of the I/O port bar. In the circuit of the I/O port bar, a power switching circuit is formed to control whether the power of the main circuit is supplied by an external computer via the connecting cable or directly by an external DC power source.

Abstract: Disclosed is an adjustable PCI asychronous clock device in which by using the settings of firmware after the control line is monitored and selected by using a multiplexer via an I/O port, each of the PCI slots chooses one delay unit of the time delay means, the clock signal for each kind of PCI slot is delayed by the time delay means in order to regulate the clock signals of the chip set on the PCI add-on cards to be synchronous to the computer signals of the system chip set, so that the add-on cards match the PCI slots. The clock device comprises an I/O port, a plurality of multiplexers, and a time delay means.

Abstract: A protection device applied to a telephone line comprises at least an overload detecting device, a high temperature detecting circuit, and an enforcing on-hook means. When an abnormal over voltage or over current occurs, it can be detected by the overload detecting device. An overload signal is output to the enforcing on-hook device. Or when the temperature of a fax/modem machine raises abnormally, it can be detected by the high temperature detecting circuit. A high temperature signal is then output to enforcing on-hook device. While the enforcing on-hook device receives the overload signal or the high temperature signal, the system is on hook.

Abstract: A shock absorbing device for a notebook computer module. The device comprises of a notebook computer module, a cooling/protective plate, and two springs. A first spring is installed between the notebook computer module and the cooling/protective plate that provides a force trying to separate the cooling/protective plate and the module. The cooling/protective plate has a hole that permits a fastening insert to pass through. A first end of the fastening insert protrudes outside the cooling/protective plate while a second end of the fastening insert fastens onto the notebook computer module. There is a second spring between the first end of the fastening insert and the cooling/protective plate. The second spring provides a force trying to draw the cooling/protective plate closer to the module.

Abstract: A cooling system and method is provided to automatically switch a Central Processing Unit (CPU) to a proper execution mode according to a current working temperature and a current air flow value. The housing of the portable computer has a ventilation inlet and a ventilation outlet. A table is built and stored in a memory for recording a flow value and its correspondent target execution mode for various working temperatures. A thermal sensor detects a current working temperature and sends the result to a microprocessor. A pressure sensor detects a flow value by sensing air flow passing through the ventilation inlet and outlet and generating a heat dissipation signal representing the current air flow value. The microprocessor then uses the current air flow value to look up the table to find out a target execution mode according to the current working temperature and the current air flow value.

Abstract: A LCD backlight converter includes a temperature detection circuit arranged between a cold cathode fluorescent lamp and a backlight feedback control circuit. The temperature detection circuit has a sensor connected in series between a pulse width modulator and the cold cathode fluorescent lamp for detecting the environmental temperature. A DC/DC power adapter provides power to the pulse width modulator for driving the cold cathode fluorescent lamp. The output of the temperature detection circuit is sent to the backlight feedback control circuit that generates controls signals for controlling the output frequency of the pulse width modulator as well as the output voltage of a DC/DC power adapter. Appropriate driving voltage and current are provided to the cold cathode fluorescent lamp by the pulse width modulator according to the environmental temperature so that the lamp is normally turned on and maintains normal brightness.