Michael Angelo

US Patent:

6363449, Mar 26, 2002

Filed:

Mar 29, 1999

Appl. No.:

09/280313

Inventors:

Chi Kim Sides - Spring TX
Michael F. Angelo - Houston TX
Sompong P. Olarig - Cypress TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

G06F 1300

US Classification:

710129, 34031001

Abstract:

A method and system of interchassis and intrachassis computer component command and control. The existing power rail is used for network connectivity for intrachassis command and control. An existing common power mains can be used for interchassis command and control. Further, a protocol, for example, the Consumer Electronic Bus (CEBus) protocol (or a CEBus protocol modified for the particular power rail) can be used to provide interchassis and intrachassis platform management functionality. This management functionality is similar to that provided by the proposed Intelligent Platform Management Interface (IPMI) specification. A chassis bridge controller is used to interface the intrachassis power rail command and control infrastructure to an exterior network. External systems (interchassis communications) can communicate to the bridge via the particular protocol over an existing common power mains as a secondary channel exterior network. However, the management functionality is implemented intrachassis, that is, it is applied to the internal components of the machine.

US Patent:

6370649, Apr 9, 2002

Filed:

Mar 2, 1998

Appl. No.:

09/033192

Inventors:

Michael F. Angelo - Houston TX
David F. Heinrich - Tomball TX
Hung Q. Le - Katy TX
Richard O. Waldorf - Cypress TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

H04K 100

US Classification:

713202, 713100, 713200, 713182, 713183, 713184, 380249, 380 44, 235382, 2353825

Abstract:

A computer system according to the present invention implements a self-modifying âfail-safeâ password system that allows a manufacturer or site administrator to securely supply a single-use password to users who lose a power-up password. The fail-safe password system utilizes at least one fail-safe counter, an encryption/decryption algorithm, a public key, and a secure non-volatile memory space. The fail-safe password is derived by generating a hash code using SHA, MD5,or a similar algorithm and encrypting the result. The fail-safe password is then communicated to the user. After the user enters the fail-safe password, the computer system generates an internal hash value and compares it with the hash code of the decrypted fail-safe password. When the decrypted fail-safe password matches the internal hash value, the user is allowed access to the computer system.

US Patent:

6400823, Jun 4, 2002

Filed:

Dec 13, 1996

Appl. No.:

08/766267

Inventors:

Michael F. Angelo - Houston TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

H04L 932

US Classification:

380 25, 380 23

Abstract:

A method for generating system passwords derived from an external encryption algorithm and plain text user passwords entered during a secure power-on procedure. At some point during the secure power-up procedure, the computer system checks for the presence of an external token or smart card that is coupled to the computer through specialized hardware. The token or smart card is used to store an encryption algorithm furnished with an encryption key that is unique or of limited production. Following detection of the external token, the computer user is required to enter a user password. The user password is encrypted using the encryption algorithm contained in the external token, thereby creating a system password. The system password is then compared to a value stored in secure memory. If the two values match, the power-on sequence is completed and the user is allowed access to the computer system or individually secured resources.

US Patent:

6418533, Jul 9, 2002

Filed:

Aug 29, 1997

Appl. No.:

08/927096

Inventors:

Michael F. Angelo - Houston TX
Sompong P. Olarig - Cypress TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

G06F 1264

US Classification:

713202, 713 1, 713 2, 713100, 713200

Abstract:

A computer security system whereby access is controlled by remote enablement or disablement. The system can be coupled with third-party products to accommodate satellite transmissions for long-distance access control.

US Patent:

6463495, Oct 8, 2002

Filed:

Mar 29, 1999

Appl. No.:

09/280311

Inventors:

Michael F. Angelo - Houston TX
Sompong P. Olarig - Cypress TX
Chi Kim Sides - Spring TX
Kenneth A. Jansen - Spring TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

G06F 1338

US Classification:

710305, 710100, 710107, 713300, 340310

Abstract:

A method and system of intrachassis computer component command and control. The existing power rail is used as network connectivity. Further, the CEBus standard (or a CEBus standard modified for the particular power bus) is used to provide platform management functionality. This management functionality is similar to that provided by the proposed IPMI specification. However, the management functionality is implemented intrachassis, that is, it is applied to the internal components of the machine. Particularly advantageous functions, such as rollcall enumeration and command authentication and verification, are included in a preferred embodiment. Further, because these innovative techniques utilize the existing power rail, no additional external cables are required.

US Patent:

6477799, Nov 12, 2002

Filed:

Mar 13, 2000

Appl. No.:

09/523858

Inventors:

Carol Erickson - Cypress TX
Kenneth Jansen - Spring TX
David R. Wooten - Escondido TX
Guy McSwain - Cypress TX
Michael F. Angelo - Houston TX
Keith Lutsch - Houston TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

G09F 1900

US Classification:

40406, 40409, 40422, 40426, 4066101, 446267

Abstract:

A self-orienting logo assembly so that the logo is always in a horizontal orientation. In the preferred embodiments the logo is located on a disk. The disk is weighted or otherwise designed to have its weight distributed nonuniformly. The disk is located inside a housing. The housing is attached to the computer or other equipment bearing the logo. When the housing is located in a vertical plane the disk rotates to allow the logo to remain horizontal. The disk can be rotationally mounted to the housing or can be suspended in liquid. In an alternate embodiment the disk can have a magnet incorporated so that when the disk is in a horizontal orientation it can act as a compass. In another embodiment a portion of the disk is removed and the housing contains an additional logo or wording. The rotation of the disk can then cover or expose the additional logo or wording.

US Patent:

6502203, Dec 31, 2002

Filed:

Apr 16, 1999

Appl. No.:

09/293587

Inventors:

Dwight L. Barron - Houston TX
Michael F. Angelo - Houston TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

H02H 305

US Classification:

714 4, 709250, 34031001, 370225

Abstract:

A method and system of quorum negotiation utilizing power mains. Unlike current systems, this communication is provided as a secondary channel, with the primary channel being a standard network system. By using this technique, if the heartbeat is lost over the primary communication system, the secondary, power-mains system can be used to check the heartbeat to validate whether or not the âlostâ system is still in operation. If communication cannot be established over the power mains, it is assumed that the âlostâ system is down and should be dropped from any cluster.

US Patent:

6581162, Jun 17, 2003

Filed:

Dec 31, 1996

Appl. No.:

08/777615

Inventors:

Michael F. Angelo - Houston TX
Peter J. Michels - Plano TX

Assignee:

Compaq Information Technologies Group, L.P. - Houston TX

International Classification:

H04K 900

US Classification:

713193, 380277

Abstract:

A secure environment for entering and storing information necessary to conduct encryption processes. In a computer system according to the invention, session keys, passwords, and encryption algorithms are maintained in a secure memory space such as System Management Mode (SMM) memory. In one disclosed embodiment of the invention, a user password is entered via a secure keyboard channel. The password is maintained in a secure memory space that is not accessible during normal computer operation. In addition to the user password, optional node identification information is stored in secure memory. The node identification information is appended to the user password, and both are subsequently encrypted by an encryption algorithm and encryption keys that are also stored in secure memory. Following the encryption process, the encrypted password and node identification information are communicated directly from secure memory to network interface circuitry for communication over a network. In another disclosed embodiment of the invention, data entered in a secure manner is utilized as an encryption key (or to generate an encryption key) for securely encrypting packets of data prior to communicating the data over a computer network.