Abstract: Described is a computer system which can automatically provide its capabilities to a main computer without powering on to facilitate configuring the system in its shipping package. The computer system is coupled to a remote computer via a data communication link. The system includes a communication subsystem which is supplied with auxiliary power and is operative to detect when a valid communication link is established between the computer system and the main computer. After the detection the communication subsystem sends a first packet to the main computer via the communication subsystem. The first packet includes data which specifically identifies the computer system. When the communication link is coupled to the communication subsystem through the packaging and a power source is coupled to a power connector of the system through the packaging, the system is operative to send the first packet without powering on.

Abstract: Described is a connector in which a plug can be pulled out of a receptacle without producing stress in the connector itself or a circuit board on which the connector is mounted. The plug is inserted into the receptacle so that the side wall of the plug makes contact with the interior wall of the receptacle. When the plug and the receptacle are coupled, a fitting space is formed therebetween. When compressed air is injected into this fitting space, the plug will be pushed up by a rise in the air pressure and therefore the plug can be pulled out of the receptacle. The use of air pressure in the fitting space to pull out the plug is advantageous because it can be implemented without producing biased stress in the plug or the receptacle.

Abstract: Provided is a relatively simple switch circuit which performs a function for removing the residual voltage with a high reliability. The switch circuit includes a first switch 101 having a first terminal connected to the first power source, a second terminal connected to the load component and a control terminal to which a first control signal for controlling the first switch is supplied; a second switch 103 having a first terminal connected to the control terminal of the first switch, a second terminal connected to the second power source and a control terminal to which a second control signal for controlling the second switch is supplied; and a reverse current preventing element 107 connected between the load component and the first terminal of the second switch. A fault condition of the second switch is easily detected, and a flow of a wasteful current from the second terminal of the first switch to the second power source is prevented. This circuit is ideally suited for use in personal computer technology.

Abstract: An over-voltage protection circuit for use with a power converter having an output inductor and an isolation diode coupled to an output terminal of the power converter. The over-voltage protection circuit includes a comparison circuit that compares sensed voltages from the anode and cathode nodes of the isolation diode and, in response to the anode having a lower voltage than the cathode, generates a drive signal. The drive signal is received by an active bleed circuit, coupled to the output terminal of the power converter, that provides a current path to keep current flowing through the output inductor to prevent the power converter from going into a discontinuous conduction (DCM) mode of operation.

Abstract: Provided is a system to reduce the force required for inserting a circuit board assembly including a plurality of circuit boards into the card edge connectors. A circuit board assembly includes a first circuit board, a second circuit board and a coupling part. The first circuit board includes printed circuit elements and a connecting part. In the same manner as the first circuit board, the second circuit board includes printed circuit elements and a connecting part. The front edge of the connecting parts are shifted from the front edge of the other connecting part by a distance “d” along the connecting or inserting direction of the circuit boards toward the card edge connectors, so that the distance between the front edge of the connecting part of the first circuit board and the first card edge connector differs from the distance between the front edge of the connecting part of the second circuit board and the second card edge connector.

Abstract: A client on a network is provided with auxiliary low power logic, at the network adaptor, that is always active and simulates network traffic (e.g., Ethernet format) normally sent under control of the main client system processor(s). This logic collects client status information and reports to the network manager, irrespective of the system's CPU power level, information and provides for interaction between the user and the administration or network manager to exercise broader control and perform repair and upgrades which would otherwise require a dialog with the user and/or limit repair and reconfiguration of the client system to off-hours activity. The auxiliary logic also can receive and interpret commands from the network that conform to a predefined format.

Abstract: An integrated character recognition system for providing high-accuracy detection of a magnetic ink character string of a printed medium. The character recognition system includes a magnetic ink character recognition system for reading and decoding the magnetic ink character string. An optical character recognition system is also included performing the integrated character recognition system thereby overcoming many of the limitations presented by conventional technologies. A system and method for performing complete processing of a printed media having a magnetic ink character string utilizes both the optical and magnetic ink character recognition systems to perform virtually error-free character recognition of the magnetic ink character string.

Abstract: Described is a torque hinge mechanism which includes a shaft and at least two ring like friction plates pressed against each other by a pressure and through which the shaft passes. A non-penetrating recess is formed on a friction surface of one of the ring like friction plates. The non-penetrating recess can be a closed type non-penetrating recess. A scatter of a lubricant can be prevented by using such friction plates. A wedge effect is increased by using such friction plates so that the torque hinge mechanism can be stably operated over a long period of time.

Abstract: A mounting tray for a hard disk drive has a base, a front wall, and a pair of side walls. A pair of latching mechanisms are located in each side wall. Each latching mechanism has a slide and a spring-like fastener. The fasteners have an unlocked position where they are biased away from the tray, and a locked position where the slides capture them against the side walls. A tapered pin extends inward from each fastener. With the latching mechanisms in their unlocked positions, a drive is placed in the tray. The slides are then moved to the locked positions such that the pins on the fasteners engage holes in the drive. The pins secure the drive from movement relative to the tray to facilitate hot plugging of the drive into a computer system.

Abstract: A notebook computer has a base, a lid and a display monitor located within the lid. The lid also contains a device which may be used to articulate and support the display in various positions away from the lid that improve viewing for the user under limited or cramped conditions. The device uses a linkage member to pivotally move the display out of the lid, closer to the user, and higher above the base. The linkage locks into place in a conventional lower position and an elevated upper position. After the linkage is locked in the upper position, the display may be tilted to a desired angle. Although the device allows the display angle to be increased well beyond vertical, the display does not obscure the user's view of the keyboard while in this position. In low light conditions, the device also incorporates a light source behind the display for illuminating the keyboard beneath the display.

Abstract: Disclosed is an integrated uninterruptable power supply (UPS) for a computer powered by a commercial power supply. The uninterruptable power supply is operative to feed power from a normal power supply to a first load to be operated at a first DC voltage and a second DC voltage that is lower than the first DC voltage. If a characteristic of the normal power supply is deviated from a defined value, the UPS of the present invention will continue feeding power from a battery power supply to the first load. The uninterruptable power supply includes a power supply unit, having an output connected to the first load, for converting a voltage of the normal power supply to the first DC voltage and for outputting the same. The UPS also includes a first voltage converter having an input connected to the battery and an output connected to the first load, for converting an output voltage of the battery to the second DC voltage and for outputting the same.

Abstract: A switching controller for use in a power converter having a controllable switch and operable in a critically continuous conduction mode (CCCM). The switching controller includes an error amplifier that senses an electrical characteristic of the power converter and compares the electrical characteristic to a reference electrical characteristic to generate an error signal. Next, the error signal is provided to a drive signal generator, which is coupled to the controllable switch, that compares the error signal to a reference waveform and provides, in response thereto, a drive signal to the controllable switch. A waveform shaping circuit modifies the reference waveform by comparing a sensed voltage across the controllable switch to an input voltage and provides, in response to the sensed voltage being lower than the input voltage, a modifying signal to the drive signal generator. The modifying signal modifies the reference waveform which also causes the drive signal generator to turn-on the controllable switch.

Abstract: A method and system are disclosed for automating migration of user system settings from an existing computer system to a replacement computer system in response to a user input. Selected portions of the registry, or central hierarchial data base within the existing computer system are automatically copied and stored in response a user input. A plurality of application program interface (API) routines are then initiated to retrieve and store selected settings within the existing computer system. Adapter binding information for all adapters within the existing computer system are retrieved and stored. The selected portions of the registry, selected settings and adapter binding information are then transferred to the replacement computer system and copied into appropriate registry keys, directories and files, effectively transferring the system settings from the existing computer system to the replacement computer system.