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.

Transmission power control in wireless ad hoc networks: challenges, solutions and open issues

Abstract: Recently, power control in mobile ad hoc networks has been the focus of extensive research. Its main objectives are to reduce the total energy consumed in packet delivery and/or increase network throughput by increasing the channel's spatial reuse. In this article, we give an overview of various power control approaches that have been proposed in the literature. We discuss the factors that influence the selection of the transmission power, including the important interplay between the routing (network) and the medium access control (MAC) layers. Protocols that account for such interplay are presented.

3d interconnect with protruding contacts

Abstract: This invention relates to a semiconductor having protruding contacts comprising, a first semiconductor substrate having at least one interconnect located substantially within the first substrate, and a second semiconductor substrate having at least one protruding contact point that substantially contacts at least one interconnect.

Optical interference pixel display with charge control

Abstract: An electronic device of an embodiment of the invention is for at least partially displaying a pixel of a displayable image. The electronic device includes a first reflector and a second reflector that define an optical cavity therebetween, and which is selective of a visible wavelength at an intensity by optical interference. The electronic device also includes a charge-controlling mechanism to allow optical properties of the optical cavity to be varied by controlling a predetermined amount of charge stored on the first and the second reflectors. The visible wavelength and/or the intensity are thus variably selectable in correspondence with the pixel of the displayable image.

Growth and Structure of Chemically Vapor Deposited Ge Nanowires on Si Substrates

Abstract: Chemical vapor deposition by Au-catalyzed decomposition of GeH4 has been used to grow Ge nanowires on single-crystal silicon. The nanowires grow over the temperature range ∼320−380 °C under the con...

Mobile computing device with method and system for interrupting content performance among appliances

Abstract: A method of controlling an appliance includes wirelessly initiating with a mobile computing device a performance of a content on at least one appliance of a plurality of appliances. The method includes interrupting the performance of the content by at least one of: switching the performance from a first appliance to a second appliance of the plurality of the appliances; splitting the performance of content between the first appliance and the second appliance; and splitting the performance of content on the first appliance to include only a portion of the content. The method optionally includes maintaining the continuity of the performance during the switching step and/or splitting step. A system for controlling an appliance includes a mobile computing device comprising a content interruption manager including at least one of: an appliance switcher configured for switching the performance of content among appliances; a multiple appliance splitter configured for splitting the performance of content into select portions for simultaneous performance on multiple appliances; and a performance continuity monitor configured for maintaining a continuity of a performance of content on one or more appliances.