Abstract: A portable electronic imaging device, in performing digital zoom, exploits barrel distortion in the original digital image to produce higher quality digitally zoomed images than can be obtained by simple cropping and rescaling. Such a portable electronic imaging device may be implemented using a moderately wide-angle lens of fixed focal length.
Type:
Grant
Filed:
July 29, 2002
Date of Patent:
August 29, 2006
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: The order of a group of objects is reversed in logarithmic time. The invention may be applied to a wide variety of applications. An exemplary embodiment is included in which the invention may be used to reverse the order of the bits contained in a computer register.
Type:
Grant
Filed:
September 20, 2001
Date of Patent:
September 20, 2005
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Jeffrey Naset, Mark Nathan Hattarki, Charles R Plaine, David L Maison
Abstract: An image browsing user interface provides convenient viewing of both individual images and groups of images. The user interface provides a convenient way to view both individual images and a preferred image from each group of images. The individual and preferred images may be uploaded to an external device or selectively processed by the external device.
Type:
Grant
Filed:
November 2, 2001
Date of Patent:
September 13, 2005
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: A digital camera takes photographs of printed material upon recognition of a specified text pattern. In one exemplary embodiment of the present invention, the process of photographing printed material based on text pattern recognition is partially manual. In a second embodiment of the present invention, the process is highly automated.
Type:
Grant
Filed:
April 5, 2001
Date of Patent:
June 7, 2005
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: Computer data is transferred from a packed to an unpacked data structure in a computer that enforces aligned memory access and for which the associated compiler lacks a compile-time directive to pack data structures. In an exemplary embodiment, the invention is employed in the pre-processing of Advanced Configuration and Power Interface (ACPI) tables stored in little-endian format for use by a big-endian operating system.
Type:
Grant
Filed:
July 2, 2001
Date of Patent:
March 8, 2005
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Matthew Fischer, Thavatchai Makphaibulchoke, Subramanian Ramesh
Abstract: An apparatus for cooling an electronic device includes at least one angled flow control vane to divert a first airflow such that it blends with a second airflow that, prior to diversion of the first airflow, is substantially orthogonal to the first airflow. The efficient blending of the two airflows results in improved cooling of the electronic device.
Type:
Grant
Filed:
January 22, 2003
Date of Patent:
October 19, 2004
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: A reproduction method and system supports rapid convergence of a genetic optimization process. Mating, mutation, or both may be combined with biased parent selection during each mating season.
Type:
Grant
Filed:
January 25, 2002
Date of Patent:
July 20, 2004
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: A multiplexer is implemented in multiple stages. In an exemplary embodiment, a four-to-one multiplexer is transformed into two four-input logic functions to facilitate a field-programmable-gate-array implementation.
Abstract: An optical waveguide and a shutter are used to guide light from multiple illuminated pixels on a document being scanned onto a single photosensor element. Various methods are disclosed for selecting one pixel at a time for projection onto a single sensor element. Multiple scans are required to capture all the image pixels. The data from multiple scans are then combined to form a single scanned image that has a higher optical sampling rate than the native optical sampling rate of the sensor array. Superresolution image analysis techniques developed for reconstruction of one image from a set of lower resolution images may be applied to provide a diffraction-limited high-resolution image. The waveguide as described also provides an ability to reduce scanning time for lower resolution images. In a first example embodiment, a rotating rod lens with a pattern of black and white areas is used to block/unblock optical waveguide array elements.
Type:
Grant
Filed:
October 29, 1998
Date of Patent:
July 2, 2002
Assignee:
Hewlett-Packard Company
Inventors:
Patricia D. Lopez, James B. Williamson, Yucel Altunbasak
Abstract: The bits comprising a computer data structure are reversed rapidly and efficiently using a combination of data partitioning and table look ups. In an exemplary embodiment, the invention is employed in the pre-processing of Advanced Configuration and Power Interface (ACPI) tables stored in little-endian format for use by a big-endian operating system.
Type:
Grant
Filed:
July 2, 2001
Date of Patent:
May 14, 2002
Assignee:
Hewlett-Packard Company
Inventors:
Matthew Fischer, Raghuram Kota, Thavatchai Makphaibulchoke, Subramanian Ramesh