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.

Memristor-Based Analog Computation and Neural Network Classification with a Dot Product Engine.

Abstract: Using memristor crossbar arrays to accelerate computations is a promising approach to efficiently implement algorithms in deep neural networks. Early demonstrations, however, are limited to simulations or small-scale problems primarily due to materials and device challenges that limit the size of the memristor crossbar arrays that can be reliably programmed to stable and analog values, which is the focus of the current work. High-precision analog tuning and control of memristor cells across a 128 × 64 array is demonstrated, and the resulting vector matrix multiplication (VMM) computing precision is evaluated. Single-layer neural network inference is performed in these arrays, and the performance compared to a digital approach is assessed. Memristor computing system used here reaches a VMM accuracy equivalent of 6 bits, and an 89.9% recognition accuracy is achieved for the 10k MNIST handwritten digit test set. Forecasts show that with integrated (on chip) and scaled memristors, a computational efficiency greater than 100 trillion operations per second per Watt is possible.

Method of accessing a target entity over a communications network

Abstract: A method of accessing a target entity over a communication network employs a distributed database system similar top the DNS of the Internet; indeed the DNS may be used as the required distributed database. The distributed database stores records, each associated with a corresponding domain name and holding communication data for use in accessing a target entity. Each of these domain names are related to a respective number string from which it can be derived by a process including parsing at least a substantial portion of the number string into at least a part of said domain name. Upon the input of a number indicative of a target entity, the related domain name is formed by parsing the number and the domain name is then used to retrieve the corresponding communication data from the DNS-type distributed database system. This data is then used in accessing the target entity. In one embodiment the communication network is a telephone network and the target entity is a called party; in this case, the number string comprises a dialed number and the retrieved communication data is a URI indicative of the location on the Internet of a current telephone number for the target party, the URI once retrieve being used to access the current telephone number over the Internet for use in setting up a call to the target party.

Silicon microring resonators with 1.5-microm radius.

Abstract: We demonstrate a junction between a silicon strip waveguide and an ultra-compact silicon microring resonator that minimizes spurious light scattering and increases the critical dimensions of the geometry. We show cascaded silicon microring resonators with radii around 1.5 microm and effective mode volumes around 1.0 microm(3) that are critically coupled to a waveguide with coupled Q's up to 9,000. The radius of 1.5 microm is smaller than the operational wavelength, and is close to the theoretical size limit of the silicon microring ring resonator for the same Q. The device is fabricated with a widely-available SEM-based lithography system using a stitch-free design based on a U-shaped waveguide.

Operating a digital audio player in a collaborative audio session

Abstract: A digital audio system configured to facilitate a collaborative audio session comprises a first digital audio device operable by a first user, a second digital audio device operable by a second user independently of the first digital audio device, and a server configured to communicate with the first digital audio device and the second digital audio device over a network, receive a request from at least one of the digital audio devices for participation in a collaborative audio session, and facilitate communication between the first digital audio device and the second digital audio device.

Real time bank-centric universal payment system

Abstract: An infrastructure for a real time bank-centric universal payment system (2) in which a central processing system (CPU) defines an electronic commerce trust system (1) formed from a plurality of financial service provider members (4) subscribing to a common standard having applicability throught the infrastructure. The central processing unit is operatively interconnected to the correspondent processing units of financial service provider members (4) that in turn are operatively interconnected through access mechanisms to a network of customers (3) and goods and services providers (5) who are account subscribers with the financial service provider member (4) and subject to the common standard of the system. The CPU provides non-revocable real time debit and credit transactions and effects net settlement between and among members through a central exchange monetary system. Features of the infrastructure include ECTS hot file, bill presentment and payment options and provider designed services that enhance brand identity.