Jonathan M Allen

US Patent:

6963990, Nov 8, 2005

Filed:

Feb 5, 2002

Appl. No.:

10/067785

Inventors:

Jonathan Michael Allen - Rochester MN, US
Steven Paul Jones - Rochester MN, US
Daniel Frank Moertl - Rochester MN, US
Adalberto Guillermo Yanes - Rochester MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F001/04
G06F001/06

US Classification:

713500, 713600

Abstract:

Embodiments are provided in which clock generation for a PCI bridge and its N attached secondary buses is carried out by using an external PLL clock generator which generates N+1 first clock signals at a first frequency to the bridge and to N multiplexers. The bridge in turn generates N second clock signals to the N multiplexers. Each of the N clock signals generated by the bridge can be at either a second or third frequency. Each of the N multiplexers passes one of the first clock signal and second clock signal to a secondary bus depending on the speed of the slowest adapter on the secondary bus.

US Patent:

7049970, May 23, 2006

Filed:

Oct 22, 2003

Appl. No.:

10/691291

Inventors:

Jonathan Michael Allen - Rochester MN, US
Matthew Allen Butterbaugh - Rochester MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G08B 17/02

US Classification:

340590, 3405682

Abstract:

A tamper sensing circuit is provided for an electrical device wherein an enclosure may be opened to access data by a user that does not possess the ability to achieve normal access by satisfying data security measures such as use of a password. A screw used to secure enclosure halves together is connected by a conductive coating at the enclosure member surface into which the screw is threaded to connect a tamper sensing circuit to the device ground potential. A tamper sensing circuit output node is maintained at the circuit ground potential as long as the screw is in electrical contact with the enclosure conductive coating. When the screw is disengaged from the enclosure member threaded opening, the output node is no longer grounded and rises to a supplied electrical potential indicating tampering and enabling appropriate corrective action. The conductive coating on the enclosure member which connects the screw to circuit ground may be applied or may already be present to suppress electromagnetic interference.

US Patent:

7080763, Jul 25, 2006

Filed:

Jul 31, 2003

Appl. No.:

10/632159

Inventors:

Jonathan Michael Allen - Rochester MN, US
Mark James Jeanson - Rochester MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

A45F 3/14

US Classification:

224257, 206320

Abstract:

A shoulder strap for carrying a notebook computer is formed as an elongated member with a locking mechanism at a first end which attaches to the lock slot of the computer and a loop at the opposite end. By passing the strap through the loop, the opposite end portion of the strap is positioned around the computer adjacent the side opposite the side which includes the lock slot. With the first end of the strap secured to the computer by securing the locking mechanism at the computer lock slot, the intermediate portion of the strap extends over the users shoulder to enable transport of the computer. By forming the strap using a plastic coated steel cable, the shoulder strap may be used for both carrying the computer and as a security cable for securing the computer when unattended. The shoulder strap surfaces that engage the user's shoulder and surround and engage the notebook computer are formed of non-adhesive, non-slip material. In an alternate embodiment, to more positively secure the strap portion surrounding the computer, hook and loop tape is applied to both the strap portion engaging the computer and the computer side over which the assembled strap passes, so that the strap can be prevented from slipping off the computer when assembled for transport.

US Patent:

8108823, Jan 31, 2012

Filed:

Jun 18, 2008

Appl. No.:

12/141453

Inventors:

Jonathan M. Allen - Rochester MN, US
Richard Holmquist - Rochester MN, US
Mark J. Jeanson - Rochester MN, US
Jordan R. Keuseman - Rochester MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/04
G06F 17/50

US Classification:

716139

Abstract:

A computer implemented method employs software on a system for generating a logical representation of an electronic circuit undergoing a design. A predetermined grid for the circuit being designed is selected through interaction with the user through a graphical user interface. An input file defines objects to be plotted to the grid, and is read into a computer system. Objection locations relative to the grid, and connections between objects are checked and adjustments made by moving objects as necessary to align with the grid and to ensure connections between the objects. A design file of the adjusted logical representation is written for use in completing a circuit design.

US Patent:

62370480, May 22, 2001

Filed:

Sep 8, 1998

Appl. No.:

9/149043

Inventors:

Jonathan Michael Allen - Rochester MN
Daniel Frank Moertl - Rochester MN
Danny Marvin Neal - Round Rock TX
Gregory Michael Nordstrom - Oronoco MN
Thomas James Osten - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 300
G06F 1312
G06F 1338

US Classification:

710 8

Abstract:

In an electrical interface providing a predefined number of connections at least some of which have predefined functions and at least some of which have reserved, undefined or non-critical functions, selective use of at least one of the connections having a reserved, undefined or non-critical function is accomplished. At least one switch is provided which is controllable and coupled to switch at least one connection having a reserved, undefined or non-critical function to a desired customized function. In this way, the electrical interface can be selectively switched to provide additional functionality using reserved, undefined or non-critical connections of the interface.

US Patent:

57240264, Mar 3, 1998

Filed:

Apr 24, 1996

Appl. No.:

8/639917

Inventors:

Jonathan Michael Allen - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G08B 2100

US Classification:

340635

Abstract:

A multiple output level power supply is provided having an overpower detection circuit. The power supply provides multiple DC voltage output levels. A differential amplifier coupled to each DC voltage output level of the power supply is then utilized to generate a signal which is representative of the power output at each of the multiple voltage levels. The output of each differential amplifier is then coupled to a summer which generates a signal representative of the total power output from the multiple outputs of the power supply. A comparison of the total power output signal and a reference signal selected to be representative of the maximum desired power output may then be utilized to efficiently provide an indication of an overpower condition within the power supply.