International Business Machines Corporation

Lenovo (singapore) Pte. Ltd.

Robert Joseph Evans

Kamran Amini

Michael Leo Scollard

Joseph Curtis Diepenbrock

Daryl Carvis Cromer

John Peter Karidis

Eric Richard Kern

James Peter Ward

Brandon Jon Ellison

Krishna Sundaram Nathan

Gregory J Clary

Henry Gaines McMillan

Peter Dirk Hortensius

Robert M Piper

Paul Maylon Smith

Thomas Allan Corbi

Marcel B Tran

Mike L Scollard

A signal channel extends from motherboard to a daughter card across an edge connection. The daughter card includes a conductive plane that is held at a constant electrical potential. In order to compensate for a number of sources of inductance within the signal line at the edge connection, a circuit trace forming a portion of the signal channel includes an enlarged portion, spaced inward along the daughter card from the contact pads forming the edge connection, that adds capacitive coupling of the signal channel with the conductive plane.

Signal channel configuration providing increased capacitance at a card edge connection

A method of controlling the power-on of a computer system by providing a plurality of monitor lines interconnected with respective components of the computer system, monitoring the lines using a control circuit in response to a power-on reset signal, and executing a system power-on sequence in response to a determination by the control circuit that the components of the computer system are functioning properly. If the computer system has a plurality of CPU slots, the control circuit determines if a CPUs or terminator cartridges is plugged into the CPU slots, and determines that a properly matched CPU has been installed into the system, and that multiple CPUs contain compatible power supply requirements. Finally, the control circuit can determine that a power regulator is functioning properly.

Method and system for controlling a power on sequence in response to monitoring respective components of a computer system with multiple CPU sockets to determine proper functionality

A method of monitoring a networked computer system by detecting a change to a configuration of the computer system, using detection logic of the computer, and generating an alert associated with any change in the configuration in real time. The alert is transmitted to a remote server on the network. In an illustrative implementation, the detection logic can detect (i) a change in the number of storage devices present in the computer system, (ii) a change in the number of memory modules present in the computer system, and (iii) a change in the number of processors present in the computer system. The configuration information may be saved between boot operations of the computer using a battery-powered latch.

Real-time alert mechanism for signaling change of system configuration

Real time digitization of handwritten text and integration of digital recordation of handwritten text with traditional paper-based record making systems is achieved with a recording unit which may record a sequential data stream of strokes and associated events. The data stream may be stored in the apparatus and processed in accordance with various applications. Recordation of handwritten strokes may be accompanied by automatic detection and recordation of predefined events, and by user invoked generation of events. Recorded handwritten text may be processed to produce character strings or image data for text recorded in conjunction with predefined events.

Methods, systems and products pertaining to a digitizer for use in paper based record systems

A printed circuit board connector edge tab design has increased tab contact area with a large local capacitance at the connector interface. This serves to balance out the inductive effects of the connector and results in a lower overall channel impedance at the interface. The invention replaces the prior art plated pathway to the upper row of tabs with wider tabs on the lower row. The edges of the lower row tabs are spaced such that each of the connector pins destined for the upper row straddle two of the lower tabs as they travel upward. This design prevents the pins from contacting the fiberglass substrate of the board while it traverses the lower row of tabs. The absence of the prior art plated pathways allows each of the lower row tabs to be expanded into the space formerly occupied by the pathways. This design also allows the increased capacitive area of the edge tabs to be located in very close proximity to the connection area between the connector pins and the edge tabs.

Circuit board connector edge with straddle pattern tab design for impedance-controlled connections

Growing community of inventors

Cary, NC, United States of America

Robert Joseph Evans