apt-X Lossless For Lossless Audio Compression
[ Source: APTX ]
January 2009-
This technology white paper introduces a new scheme for lossless audio compression called apt-X Lossless. This scheme has been conceived, designed, and developed by APTX, an audio processing technology company, the commercial originator of the apt-X low-latency audio codec, and a company with a long association with both the broadcast industry and the studio post-production business.
Reducing The Complexity Of Sub-band ADPCM Coding
[ Source: APTX ]
February 2009-
The number of consumer audio applications demanding high-quality audio compression and communication across wireless networks continues to grow. Although the consumer is increasingly demanding higher audio quality, devices such as portable media players and wireless headsets also demand low computational complexity, low power dissipation, and practical transmission bit-rates to help conserve battery life. This paper discusses research undertaken to lower the complexity of existing high-quality sub-band ADPCM coding schemes to better satisfy these conflicting criteria.
The Quest for Low Cost, Ultra Low Power Wireless Networks for Smart Environments
[ Source: Ambient Systems ]
January 2008-
Sensors and control devices, that can measure anything from temperature to air flows, have found their way into a wide range of applications, such as environmental monitoring, agriculture, security and in factories. Emerging wireless communication solutions, with incorporated mesh networking capabilities, are the ideal platform for a wide array of low-cost, low data rate applications. This paper explains unconventional technologies including a new approach provided by Ambient Systems that really overcomes these barriers. Systems designers ...
INNER-active Journal
[ Source: Association for Computing Machinery ]
January 2008-
The system utilizes an adaptation of the personal, mobile data collection and annotation platform, known as PMobile, developed at the MIT Media Lab. The purpose of this is to present a journal-based system that provides a way for users to reconstruct their emotions around events in their lives, and to see how recall of these events affects their physiology. The architecture consists of three layers. The first is the sensor layer, consisting of a Fitsense ...
MMM2: Mobile Media Metadata for Media Sharing
[ Source: Association for Computing Machinery ]
January 2008-
As camera phones become the leading platform for consumer multimedia capture worldwide, multimedia researchers are faced both with the challenge of how to help users manage the billions of photographs they are collectively producing and the opportunity to leverage camera phones’ ability to automatically capture chronological spatial, and social contextual metadata to help manage consumer multimedia content. In the Mobile Media Metadata 2 (MMM2) prototype, collaborative filtering techniques are applied to automatically gather contextual metadata to ...
Simple Pairing White Paper
[ Source: Bluetooth ]
January 2008-
The primary goal of simple pairing is to simplify the pairing process from the point of view of the user. Secondary goals are to maintain or improve the security in Bluetooth wireless technology. Since high levels of security and ease-of-use are often at opposite ends of the spectrum in many technologies and products, much care has been taken by the Core Specification Working Group in the creation of the Simple Pairing proposal to maximize security ...
Methods of Synchronizing With a Bluetooth Piconet Using CATC Bluetooth Analyzers - Merlin, Merlin Mobile, BTTracer and Merlin II
[ Source: Computer Access Technology ]
January 2008-
This paper from Computer Access Technology examines various techniques for synchronizing a Bluetooth Analyser like the CATC Merlin to a Bluetooth Piconet and shows how and when one might use the different approaches. This paper also explains the terminology ’Bluetooth Master’ is used for the device, which initiates a Bluetooth connection and/or maintains a Piconet with one or more Bluetooth devices. A ’Bluetooth Slave’ or ’Target’ device is one that responds to the initiating ...
The CATC Trace: Expert Protocol Analysis Software
[ Source: Computer Access Technology ]
January 2008-
The CATC Trace is an intuitive and powerful expert protocol analysis software system, used to ease the design, test and debug of various products employing advanced communication protocols. The CATC Trace is offered as an integral part of CATC’s extensive line of protocol analysis products, supporting the Bluetooth, Fibre Channel, IEEE 1394, InfiniBand, PCI Express, Serial ATA and USB standards. CATC’s analyzers accurately monitor, capture, filter and analyze high-speed communications traffic, allowing the customers ...
An FPGA Dynamically Reconfigurable Framework for Modular Robotics
[ Source: Ecole Polytechnique Federale de Lausanne ]
January 2008-
This paper published by FPGA proposes a framework for performing it in an easy way, for a specific application: Modular Robotics. An architecture containing a Microblaze processor and a reconfigurable module is proposed. The presented approach may increase system flexibility thanks to DPR, while keeping low memory requirements given the Bluetooth access to a bitstream repository.
Coexistence Analysis of Bluetooth and Cellular UMTS in the 2500-2690 MHz Band
[ Source: Ericsson ]
January 2008-
The 2500-2690 MHz band has been recognized as extension band for IMT-2000 systems such as UMTS (Universal Mobile Telecommunications System). The combination of BT and GSM within one mobile phone has become widely accepted and therefore the same combination is required to work for UMTS mobile phones operating in the 2.5 GHz extension band as well. The objective of the work explained in this white paper is to analyze the performance of the BT receive mode ...