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Communications

TTP parades low-power wireless sensors

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Hertfordshire consultancy The Technology Partnership (TTP) has revealed some of its battery-free low-power wireless sensor technology. “We have a ground up understanding of the physics and the science, and mould the modulation technique and link design to suit the particular problem. We can make relatively dumb objects intelligent because we are good at low-power design, wireless protocols, sensing, and custom ...

Freescale offers GaN device for multi-band land mobile radios

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Freescale Semiconductor has added three LDMOS power transistors and one gallium nitride (GaN) transistor to its Airfast RF power product line. The application is in land mobiles. Freescale’s new AFT09MS007N, AFT09MP055N and AFT09MS015N LDMOS power amplifiers are  for mobile VHF, UHF and 700-900 MHz transceivers used in public safety, professional mobile radio and other harsh machine-to-machine communications environments. They are ...

UK tackles NFC-based card fraud with micro-switch

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Peratech, the UK-based materials technology company, says it has developed an inexpensive technique for tackling fraudulent data skimming from contactless cards and NFC devices. These contactless devices work by being waved over a reader and data is exchanged between the reader and the device. The problem comes from the fact that the devices are always on and ready to interact ...

Software for developing 3D gesture-based car dashboards

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Motor show concept cars have traditionally attracted attention through outrageous body styling, but today’s advanced demonstrators place at least as much emphasis on high-tech gadgetry inside. Recent appearances by leading car brands have impressed audiences with large touch screens that centralise access to everything from mobile phone contacts, multimedia content and social media to navigation, parking assistance and graphical vehicle diagnostics. ...

CSR launches smart chip, as Google’s Android supports Bluetooth

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CSR has launched a new chipset for Bluetooth Smart, the low power flavour of the wireless comms standard. This follows an announcement from Google and Bluetooth Special Interest Group that Android will include native support for Bluetooth Smart Ready and Bluetooth Smart devices in the next version of its operating system, meaning 75% of smartphones will integrate with Bluetooth Smart devices. “Google’s announcement marks a significant milestone in ...

Nujira claims PA linearity record

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Nujira is claiming record linearity for an RF power amplifier (PA) with supply rail envelope tracking, at -53dBc adjacent channel leakage ratio (ACLR). This is without modem assistance or digital pre-distortion (DPD), and beats the firm’s previous -50dBc landmark. “Our approach allows for control of the AM characteristics of the PA in a simple look-up table, meaning that designers can ...

ZigBee RF4CE demonstrator controls and monitors a home appliance

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To demonstrate ZigBee RF4CE wireless interfacing in the home, NXP has developed a remote control and remote monitor for a domestic appliance. Built around the firm’s JN5161 wireless microcontroller, the hand-held has a capacitive touch screen and can be used to control a single appliance in applications including home entertainment or residential air conditioning systems. “A wide range of information can ...

Talking cars will require smart infrastructure

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The universal expansion of vehicle communications systems will drive growth in the demand for automotive and roadside sensor systems, writes Andrew Ashby, automotive business development manager at Plextek Consulting The reality of a connected-vehicle has implications for a range of vehicle and infrastructure systems. The traditional automotive industry is trying to fully appreciate the impact of vehicle to vehicle (V2V) ...

Connected car initiative gets technology suppliers

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NXP Semiconductors has partnered with Australia-based Cohda Wireless to develop technology for the wireless communications between cars and traffic infrastructure, in Europe. The two companies are the first automotive electronics suppliers to sign up to the Car 2 Car Communication Consortium, which already includes 12 car manufacturers. Cohda is developing wireless communications for automotive safety applications using higher than commercial ...

Spreadtrum launches dual-core ARM chips in China

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Spreadtrum Communications, the China-based mobile phone chipset supplier, has announced the commercial availability of its dual-core 1.2GHz smartphone chipsets for TD-SCDMA (SC8825, pictured) and EDGE (SC6825). This follows the successful qualification of its platform by operator China Mobile. The chips are based on a dual-core 1.2GHz Cortex-A5 core processor, a dual-core Mali 400 graphics processor with multimedia and hardware accelerators. ...