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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.

Kleer Advantages Over Bluetooth [ Source: Kleer ]

April 2008- This whitepaper compares Kleer technology to Bluetooth technology for the application of wireless streaming audio. Bluetooth is a standard for relatively short-range general-purpose data communications. Bluetooth has found initial market success in wireless voice headsets for mobile phones and is now trying to address stereo audio for mobile phones and portable audio players. Bluetooth solutions suffer from poor audio quality due to the use of lossy audio compression, poor ISM (2.4GHz) band coexistence performance in ...

Security Associations in Personal Networks: A Comparative Analysis [ Source: Nokia ]

January 2008- Short-range communication standards have brought a large number of new services to the reach of common users. For instance, standards for personal networking technologies such as Bluetooth, Wi-Fi,Wireless Universal Serial Bus (WUSB), and HomePlug AV enable users to easily introduce, access, and control services and devices both in home and mobile environments. The initial process of introducing a new device to another device or to a network is called an association. This Nokia paper ...

Bluetooth PAN and External IP Networks [ Source: University of Oslo ]

January 2008- This paper discusses how ad-hoc Personal Area Network (PAN) based on Bluetooth technology may connect to external networks. The paper assumes that the Bluetooth network (piconet) is formed by the automatic SAPIFO procedure that one or more piconet devices have access to external networks, and that IPv4 is used for external communication. Bluetooth have specified a PAN profile for IP over Bluetooth, which uses BNEP (Bluetooth Network Encapsulation Protocol) to emulate an Ethernet segments between ...

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 ...

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 ...

Recognition Green Light for Bluetooth [ Source: Jupitermedia ]

January 2008- It started out as the little technology that could. Today, more people than ever are using the short-range Bluetooth wireless mode of communication to switch files and talk on phones using headsets and earpieces. Since the technology is fundamentally designed to replace cables, users rely on it to wirelessly print from their notebooks or handheld PCs and connect to other devices such as LCD projectors. Bluetooth awareness increased the most in the U.S, where ...

Palm Mobility Series: Bluetooth Wireless Technology - Connecting Devices Wirelessly With Bluetooth Wireless Technology [ Source: Palm ]

January 2008- Bluetooth technology is a set of disclaimers that allow devices to talk to other devices, or to accessories, wirelessly over short distances. Bluetooth technology allows devices to communicate with each other without cables. As of the writing of this paper (Fall 2005), Bluetooth technology is being used in significant numbers by cell phone manufacturers to do things like connect a hands-free headset to a mobile phone or connect a mobile phone to a computer. This paper ...

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 ...

Using Context and Similarity for Face and Location Identification [ Source: University of California ]

January 2008- This paper describes a new advance to the automatic revealing of human faces and places portraying in photographs taken on camera phones. Camera phones offer a unique prospect to chase new approaches to media analysis and management: namely to combine the analysis of automatically gathered contextual metadata with media content analysis to fundamentally improve image content recognition and retrieval. In this paper, new methods for shaping image similarity are combined with analysis of automatically acquired ...

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 ...

A Functional Taxonomy of Wireless Sensor Network Devices [ Source: Massachusetts Institute of Technology ]

January 2008- With the availability of cheap computing technology and the standardization of different wireless communication paradigms, Wireless Sensor Networks (WSNs) are becoming a reality. The authors realize that there is a need for an unambiguous classification and definition of WSN devices. Such a classification scheme would benefit the WSN research and industrial community. This paper considers the spectrum of wireless devices ranging from passive RF devices to gateway devices for the classification. Attributes of the wireless ...

A Bypassing Security Model for Anonymous Bluetooth Peers [ Source: Institute of Electrical and Electronics Engineers ]

January 2008- Bluetooth technology provides great efficiency and cost savings for the home and business users, which also allows for cable replacement, ease of file sharing, wireless synchronization and Internet connectivity. Providing Bluetooth-technology-based services in public raises security issues in providing a secure Bluetooth link for unknown Bluetooth peers. This paper presents a bypassing security model for protecting communications between anonymous Bluetooth peers via Wireless Local Area Network (WLAN) and Authentication Authorization and Accounting (AAA) technologies. The ...

Bluetooth and Microsoft Desktop Products [ Source: Microsoft ]

January 2008- Introduced in 1999 and evolving, Bluetooth is a low power, short range radio technology that revolutionizes communications for a wide array of products from mobile phones to computer peripherals. An open specification, Bluetooth offers convenience, enhanced immunity from interference, and security which have made it the choice of a large and growing number of companies. This paper provides an overview of Bluetooth technology with a specific focus on communications security and reliability for one class of ...

Parasitic Mobility for Pervasive Sensor Networks [ Source: Springer Science+Business Media ]

January 2008- In existing models, the addition of actuation to the nodes has exacerbated three of the main problems with distributed systems: power usage, node size, and node complexity. It proposes a solution to these problems in the form of parasitically actuated nodes that harvest their mobility and local navigational intelligence by selectively engaging and disengaging from mobile hosts in their environment.

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.

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 ...

An Infrastructure for Location Aware Computing [ Source: Massachusetts Institute of Technology ]

January 2008- Mobile devices are able to determine their location to room-level granularity with existing Bluetooth technology, and to even greater resolution with the use of the recently adopted Bluetooth 1.2 specification, all while maintaining complete anonymity. The system is trivial to implement on a large scale, the network covering 5,000 square meters was deployed by a single student over the course of a few days at a cost of less than US$1,000.

A New Beatbug: Revisions, Simplifications, and New Directions [ Source: Massachusetts Institute of Technology ]

January 2008- The Beatbug is a bug-shaped percussion controller that lets players make simple rhythms. It has gone through several design iterations, from a simple two-player demo system to a more complicated 8-player performance system that was used in a series of workshops, open houses, and concerts by and for children. This research paper from Massachusetts Institute of Technology presents recent changes to the original design of the Beatbug, an electronic percussion controller for capturing and manipulating ...

A Platform for Affective Agent Research [ Source: New York University ]

January 2008- Most computational agents show expressive behaviors, often via facial movements or various gestures. Affective expressions have been argued to be useful to help make agents ""Believable"". Expressive behaviors have additionally been associated with useful outcomes such as making agents likeable. This research paper explains the benefit of applying channel knowledge at the transmitter is investigated for Multi-Carrier Spread-Spectrum (MC-SS) systems. Two different MC-SS systems are observed, namely uplink Multi-Carrier Code-Division Multiple-Access (MCCDMA) and Spread-Spectrum Multi-Carrier ...

Mobile Matchmaking: Proximity Sensing and Cueing [ Source: Massachusetts Institute of Technology ]

January 2008- Mobile phones have been adopted faster than any technology in human history and now are available to the majority of people on Earth who earn more than $5 a day. More than one billion mobile phones were sold during 2003, six times as many as the number of personal computers sold that year. Such an infrastructure of handheld communication devices is ripe for novel applications, especially considering their continual increase in processing power. This research paper introduces ...

Bluetooth Wireless Technology Basics [ Source: Hewlett-Packard ]

January 2008- Bluetooth Wireless Technology (BWT) was developed in 1994 at Ericsson in Sweden. The original purpose of BWT was to eliminate the need for proprietary cable connections between devices such as PDAs and notebook PCs. Although infrared communication existed at the time, it required line-of-sight contact. This paper from Hewlett-Packard provides an overview of Bluetooth wireless technology and instructs users on how to establish Bluetooth connections using HP products. Bluetooth wireless technology is an inexpensive, short-range radio ...

AoBachi: A New Interface for Japanese Drumming [ Source: Massachusetts Institute of Technology ]

January 2008- This research paper presents a prototype for a new music controller for drumming applications, inspired by and intended for Japanese drumming technique and performance. The interface itself is a pair of drum sticks of typical size for odaiko drum playing, enhanced with the ability to track gesture parameters. The paper presents the interesting challenge of assembling the hardware in a manner that will ensure its survival as the interface undergoes the extreme demands of taiko ...

A Simple Energy Model for Wireless Microsensor Transceivers [ Source: Massachusetts Institute of Technology ]

January 2008- Wireless microsensor networks can provide short-range connectivity with significant fault tolerances. These systems find usage in diverse areas such as environmental monitoring, industrial process automation, and field surveillance. This research paper describes the modeling of short-range transceivers for microsensor applications. A simple energy model is derived and used to analyze the transceiver battery life. This model takes into account energy dissipation during the start-up, receive, and transmit modes.

Virtual City Portal - A Multi-Network Personal Information System for Automobile Users [ Source: Technischen Universitat Munchen ]

January 2008- The success of upcoming generations of mobile communication systems will largely depend on the migration of existing, heterogeneous wireless access technologies. This is especially true for the vehicular environment, which is characterized by high mobility and a demand for advanced communication services. This research paper describes the Virtual City Portal prototype that is developed within the SOFTNET project. The system allows automobile users to request information or communication services using different wireless access systems.

""Are You With Me?"" - Using Accelerometers to Determine if Two Devices Are Carried by the Same Person [ Source: University of Washington ]

January 2008- This research paper from University of Washington presents a method based on a coherence function, a measure of linear correlation in the frequency domain, to reliably analyze walking data recorded by low-cost MEMS accelerometers to determine if two devices are carried by the same person. It uses inexpensive accelerometers and show that these sensors perform similarly to more expensive accelerometers for the frequency range of human motion, 0 to 10Hz. This paper also presents result from ...

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