Gregory A Vaughn

US Patent:

6504995, Jan 7, 2003

Filed:

Jul 21, 1999

Appl. No.:

09/358800

Inventors:

Richard Benear - Boise ID
Randall Don Briggs - Boise ID
Gregory A. Vaughn - Meridian ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

H40N 5917

US Classification:

386111, 386125

Abstract:

Apparatus for writing compressed data to a storage device having multiple storage areas. The apparatus identifies one or more storage areas to receive the compressed data based upon the compression ratio of the compressed data and the characteristic transfer rates of the storage areas. The apparatus then writes the compressed data to the Identified storage areas. This is accomplished so that when the compressed data is later read, the storage device has at least a minimum output rate. The storage device may, for example, be a disk storage unit for a laser printer. The compressed data may be compressed video data describing a document to be printed.

US Patent:

6507902, Jan 14, 2003

Filed:

Oct 10, 2000

Appl. No.:

09/686532

Inventors:

Mark E. Hodges - Boise ID
Harold C. Ockerse - Boise ID
Gregory A. Vaughn - Meridian ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 1314

US Classification:

711171, 707205, 707206, 711172, 711173

Abstract:

A system and method dynamically allocate memory to a RAM disk. Upon a file transfer to the RAM disk, a device driver determines an amount of memory required by the RAM disk then requests the required amount of memory from a memory manager. As files are deleted from the RAM disk, the memory is released from the RAM disk by informing the memory manager of the addresses of the memory to be released. Sector freelists tracks each cluster of memory allocated to the RAM disk. When a sector becomes inactive, a corresponding bit in a sector freelist indicates the inactive status of the sector. When all of the sectors in a cluster are inactive, the cluster is released for the RAM disk.

US Patent:

7102771, Sep 5, 2006

Filed:

May 7, 2002

Appl. No.:

10/141240

Inventors:

Johnny M. Lewis - Meridian ID, US
Gregory A. Vaughn - Meridian ID, US
Thomas S. Gale - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06K 15/00
G06K 1/00
B41B 1/00

US Classification:

358 114, 358 112, 358 113, 358 115

Abstract:

System, including method and apparatus, for controlling printing device outputs by selectively fulfilling or denying corresponding output requests based on the class of each output request. The class may be determined by the type of each request and/or the specific input port through which each request is received.

US Patent:

7265865, Sep 4, 2007

Filed:

Jun 19, 2002

Appl. No.:

10/175108

Inventors:

Johnny MacArthur Lewis - Whitehawk CT, US
Gregory Alton Vaughn - Meridian ID, US
Thomas Stanley Gale - Boise ID, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G06K 15/00
G06F 3/12

US Classification:

358 116, 358 114, 358 115

Abstract:

Imaging devices can have mass storage devices associated with them. In a networked environment that allows mounting of a shared resource, these mass storage devices can be viewed or even altered by anyone who can connect to the imaging device. However, unrestricted access may be undesirable. The various embodiments provide methods and apparatus for securing these mass storage devices. Security is variable among different sets of users or external devices attempting access of the mass storage device.

US Patent:

20030202208, Oct 30, 2003

Filed:

Apr 30, 2002

Appl. No.:

10/136918

Inventors:

Douglas Mellor - Meridian ID, US
Darren Binder - Boise ID, US
David Walthall - Boise ID, US
Charles Keyes - Boise ID, US
Gregory Vaughn - Meridian ID, US
Patrick Fulghum - Boise ID, US

International Classification:

G06F015/00
B41F001/00
G06K001/00

US Classification:

358/001160, 358/001150

Abstract:

A printing device stores data associated with a print job in a memory device. The print job or portions of the print job have an associated reference count(s) indicative of whether the print job or portions of the print job are write-protected. The reference count(s) is incremented and/or decremented responsive to printing of the print job. A control system is configured to permit the print job or portions of the print job to be overwritten with new data when the reference count(s) reach a particular value indicating to the control system that the print job or portions of the print job are no longer write-protected. As a result, memory capacity for print jobs (up to twice the memory capacity of conventional printing devices) and print speed performance improvements are realized over conventional printing devices.

US Patent:

62232673, Apr 24, 2001

Filed:

Feb 26, 1998

Appl. No.:

9/031504

Inventors:

Mark E. Hodges - Boise ID
Harold C. Ockerse - Boise ID
Gregory A. Vaughn - Meridian ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G06F 1314

US Classification:

711171

Abstract:

A system and method dynamically allocate memory to a RAM disk. Upon a file transfer to the RAM disk, a device driver determines an amount of memory required by the RAM disk then requests the required amount of memory from a memory manager. As files are deleted from the RAM disk, the memory is released from the RAM disk by informing the memory manager of the addresses of the memory to be released. Sector freelists tracks each cluster of memory allocated to the RAM disk. When a sector becomes inactive, a corresponding bit in a sector freelist indicates the inactive status of the sector. When all of the sectors in a cluster are inactive, the cluster is released for the RAM disk.