David J Nielsen

US Patent:

7496743, Feb 24, 2009

Filed:

Nov 8, 2004

Appl. No.:

10/983424

Inventors:

Arthur Salazar - Oceanside CA, US
Boman Irani - Los Altos Hills CA, US
Roman Zajcew - La Mesa CA, US
Scott Carter - San Diego CA, US
David L. Isaman - San Diego CA, US
David Nielsen - Carlsbad CA, US

Assignee:

Sun Microsystems, Inc. - Santa Clara CA

International Classification:

G06F 9/00
G06F 9/46
G06F 15/177

US Classification:

713 2, 713 1, 718104

Abstract:

A method and mechanism for managing operating system instances in a computing system. A computing system is configured to enable users to model and manage operating system instances. One or more defined operating system instances may be created and stored for future use. Each of the defined operating system instances may include a description of required resources. In addition, the definition of desired and/or optimal resources may be specified. In response to an attempt to realize an operating system instance, a determination is made as to whether resources allocated for the operating system instance are adequate. If the allocated resources are inadequate, further resources may be allocated. In addition, a determination may be made as to whether a standby mode is indicated for the operating system instance. If a standby mode is indicated, the operating system instance may be realized but not booted.

US Patent:

52300595, Jul 20, 1993

Filed:

Jul 16, 1990

Appl. No.:

7/554001

Inventors:

David Nielsen - Carlsbad CA
Tom Machnik - San Marcos CA

Assignee:

Kraft Systems, Inc. - Vista CA

International Classification:

G06F 3033

US Classification:

395800

Abstract:

An interface to adapt a computer to a real-time environment and that allows the adaptation procedures to be controlled using software. By allowing multiple adaptation parameters, a variety of clock rates and processor configurations can be supported. Since the parameters can be loaded by software, the difficulty of setting inconvenient and inaccessible physical configuration switches of the prior art is eliminated. Current passes through the variable resistances of the joystick potentiometers to charge capacitors. Timers measure the time required to charge the capacitors to a control voltage. This control voltage is determined by a DAC circuit which can be programmed via software. If the control voltage is lowered, the charging time is reduced.