Hewlett-Packard

About: Hewlett-Packard is a company organization based out in Palo Alto, California, United States. It is known for research contribution in the topics: Signal & Layer (electronics). The organization has 34663 authors who have published 59808 publications receiving 1467218 citations. The organization is also known as: Hewlett Packard & Hewlett-Packard Company.

Integrated circuit printhead for an ink jet printer including an integrated identification circuit

Abstract: An integrated circuit for use in the printhead of an ink jet printer includes an array circuit for heating an ink reservoir to produce a pattern of ink jets, the array circuit including a plurality of resistor cells arranged into rows and columns. A corresponding number of row and column lines are coupled to the integrated circuit array for selecting and energizing the resistor cells according to the desired printing pattern. An identification circuit integrated into the same substrate as the array circuit includes one or more programmable paths, the programmable paths corresponding and coupled to each row line. The programmable paths each include the serial combination of a programmable fuse and an active device. The opposite end of the programmable paths are coupled together at a common node, which in turn is coupled to an output circuit for providing a single output signal in response to a polling of the row lines. The identification circuit can be programmed and polled without adversely affecting or energizing the array circuit.

Method and system for automatically selecting a vertical refresh rate for a video display monitor

Abstract: A system and method of automatically selecting a vertical refresh rate for a video display monitor is disclosed. The system includes an ambient light frequency identifier and a vertical refresh rate selector. The ambient light frequency identifier is configured for capturing lightwaves from an ambient light source and for identifying a frequency of the lightwaves. The vertical refresh rate selector is configured for automatically selecting a vertical refresh rate for the video display monitor based on the identified ambient light frequency.

Epitaxial and Smooth Films of a-Axis YBa2Cu3O7.

Abstract: YBa2Cu3O7 films have been grown epitaxially on SrTiO3 (100) and LaAlO3 (100) substrates with nearly pure a-axis orientation and with transition temperature Tc (R = 0) of 85 K A unique feature of these films is their smooth surface These smooth surfaces enable the growth of short-period superlattices with well-defined modulations The films are untwinned and the grains grow with their c-axis along one of two perpendicular directions on the substrate ([100] or [010]) The fabrication of sandwich-type Josephson junctions with good characteristics may now be possible because unlike c-axis—oriented films, the superconducting coherence length of these smooth films is appreciably large perpendicular to their surfaces

Method of and apparatus for topologically based retrieval of information

Abstract: An apparatus for, and a method of, customizing an Internet session to the current location of the user which can, through a variety of methods, identify a user's specific location and once the specific location is determined, customize Internet information for the user's specific location. The location can be determined through a GPS device, user input or calculation and application of location parameters from a known position or similar methods. The customized Internet information can be accessed via, for example, CDPD, and user specific queries can be addressed through Internet search capabilities coupled with local processing.