Abstract:
Methods and systems for implementing such methods for providing server diagnostic and system management information may include, but are not limited to: receiving a network fault status request input; illuminating one or more server node fault indicators for one or more degraded server nodes having one or more faults; receiving a server node fault status request input for a degraded server node having one or more faults; and displaying one or more diagnostic service notifications for one or more faults of the degraded server node. Display of diagnostic service notifications may allow for completion of various service operations associated with service notifications once information specific to a fault is presented. Such service operations may include placing a system in standby mode, transferring workloads to other systems, initiating a firmware update, placing the system in a mode that allows for physical maintenance, or ordering parts associated with one or more faults.
Abstract:
According to one embodiment, an apparatus has first and second connectors configured for removably connecting to one another. The first connector circuit has a first differential amplifier, a first differential signal path, a first capacitor section capacitively coupling the first differential amplifier to the first differential signal path, and a first DC biasing circuit for imparting a first DC bias to the first differential signal path opposite the first capacitor section. The second connector circuit has a second differential amplifier, a second differential signal path, a second capacitor section capacitively coupling the second differential amplifier to the second differential signal path, and a second DC biasing circuit for imparting a second DC bias to the second differential signal path opposite the second capacitor section having a different magnitude than the first DC bias when the first and second connector are not connected. One or both of the first and second connector circuits is configured for detecting a change in the first or second DC bias and outputting a connection status signal in response to the detected change.
Abstract:
A printed circuit board (‘PCB’) with a capacitor integrated within a via of the PCB, the PCB including layers of laminate; a via that includes a via hole traversing layers of the PCB, the via hole characterized by a generally tubular inner surface; a capacitor integrated within the via, the capacitor including two capacitor plates, an inner plate and an outer plate, the two plates composed of electrically conductive material disposed upon the inner surface of the via hole, both plates traversing layers of the laminate, the inner plate traversing more layers of the laminate than are traversed by the outer plate; and a layer of dielectric material disposed between the two plates.
Abstract:
Testing an electrical component, the component including a printed circuit board (‘PCB’) with a number of traces, the traces organized in pairs with each trace of a pair carrying current in opposite directions and separated from one another by a substrate layer of the PCB, where testing of the electrical component includes: dynamically and iteratively until a present impedance for a pair of traces of the component is greater than a predetermined threshold impedance: increasing, by an impedance varying device at the behest of a testing device, magnetic field strength of a magnetic field applied to the pair of traces by the impedance varying device, including increasing the present impedance of the pair of traces; measuring, by the testing device, one or more operating parameters; and recording, by the testing device, the measurements of the operating parameters.
Abstract:
Embodiments of the invention include a common mode cancellation circuit and method for correcting signal skew in a differential circuit. According to one embodiment, an op amp circuit is used to correct the mismatch between transmission line lengths in the differential circuit. The CMCC can be embodied as an ASIC and added on to an existing differential signaling systems to correct and compensate for board wiring skew or other causes of phase misalignment. The result is restoration of the cross-over intersection of the plus and minus signals of the differential pair closer to the common voltage level point, as if the signals had been in phase.
Abstract:
Methods and systems for implementing such methods for providing server fault notifications, diagnostic and system management information may include, but are not limited to: receiving a network fault status request input; illuminating one or more server node fault indicators for one or more degraded server nodes having one or more faults; receiving a server node fault status request input for a degraded server node having one or more faults; and displaying one or more diagnostic service notifications for one or more faults of the degraded server node.The displaying of the diagnostic service notifications may allow for the completion of various service operations associated with the service notifications once the information specific to a fault is presented. Such service operations may include placing a system in standby mode, transferring workloads to other systems, initiating a firmware update, placing the system in a mode that allows for physical maintenance, or ordering parts associated with one or more faults.
Abstract:
According to one embodiment, an apparatus has first and second connectors configured for removably connecting to one another. The first connector circuit has a first differential amplifier, a first differential signal path, a first capacitor section capacitively coupling the first differential amplifier to the first differential signal path, and a first DC biasing circuit for imparting a first DC bias to the first differential signal path opposite the first capacitor section. The second connector circuit has a second differential amplifier, a second differential signal path, a second capacitor section capacitively coupling the second differential amplifier to the second differential signal path, and a second DC biasing circuit for imparting a second DC bias to the second differential signal path opposite the second capacitor section having a different magnitude than the first DC bias when the first and second connector are not connected. One or both of the first and second connector circuits is configured for detecting a change in the first or second DC bias and outputting a connection status signal in response to the detected change.
Abstract:
Stabilized, 17-substituted hydrocortisone containing compositions and methods of manufacture are disclosed. Isomerization of the hydrocortisone component of topical steroid compositions is markedly reduced by including an omega-6 acid component in the form of a free acid or as a compound such as an ester. Specifically disclosed are methods for preventing the isomerization of hydrocortisone 17-butyrate into hydrocortisone 21-butyrate through the use of safflower oil.
Abstract:
A method and apparatus independently controls the increasing rate and the decreasing rate a P-channel power FET and an N-channel power FET driving an inductive load. Circuits inhibit turning ON the P-channel FET until the voltage on the gate of the N-channel FET falls below its turn-on voltage threshold, and turning ON the N-channel FET until the voltage on the gate of the P-channel FET falls below its turn-on voltage threshold.
Abstract:
A circuit for assisting the charging of a line conductor having a distributed resistance and capacitance, such as a word line in a semiconductor memory device, is disclosed. In the conventional memory device, a driver circuit is disposed at one end of a word line, with a circuit for holding unselected word lines at the discharged voltage being disposed at the end of the word line opposite from the drive circuit. The invention is directed towards a pull-up circuit being disposed at the end of the word line opposite the driver circuit, the pull-up circuit having a transistor which is precharged to a high voltage prior to the active cycle. The precharged transistor is discharged as the selected word line is charged by the driver circuit, causing a driving node in the circuit to be connected to a high supply voltage. The driving node is connected to the word line by a transistor which is responsive to a select signal generated by the address decoder; once selected, the word line at the end opposite the driver circuit is driven by the high supply voltage. This will enable the selected word line to be pulled up to the high supply voltage at both ends, thereby reducing the time required to charge the word line to the required voltage level. The pull-up circuit may also include a transistor for holding the word line low, if unselected; this transistor is made non-conductive as the precharged transistor is discharged. Further disclosed is a circuit which allows a plurality of word lines to share the precharging and driving transistors, but which dedicates for each word line the "bleeder" transistor for holding unselected word lines low and the transistors for coupling the driving node to the word line. In addition, a circuit which provides a reduced voltage at the bleeder transistor, thereby speeding up the charging of the word line by the driver circuit, is disclosed.