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Flexible tags communicate with standard touchscreens

Fri, Dec 20, 2019

Research hub, imec, with TNO, and Cartamundi have developed a flexible capacitive identification tag that communicates with standard touchscreens. The C-touch tags can be integrated in a range of paper and plastic based objects such as tickets, certified documents and payment cards. Connection to the internet is established simply by placing the tagged object on the touchscreen or vice-versa.

C-touch tags are thin and flexible chips that have a unique identifier which can communicate via any touchscreen. Smart cards or other objects with embedded C-touch tags can securely interact with mobile phones used worldwide, as well as with the large number of touchscreens integrated in cars, booths, walls, coffee machines and everyday objects, says imec.

No additional hardware and major reconfigurations or additional costs for the users are incurred, confirms imec. The tags offer security thanks to the very short communication range and have the potential to be produced at low cost thanks to the monolithically integrated antenna. Compared to existing RFID technologies such as NFC, the C-touch tag does not require an external antenna. The tiny antenna is part of the chip, making the tag much smaller than current NFC tags. The small size enables C-touch tags to be integrated in all use cases where interaction via touchscreens is feasible, but RFID/NFC tags are either too large or too expensive or where contactless reading is a disadvantage; this can range from board games to providing higher security in payment cards, or to replace difficult to service and manage hardware readers and access control points with easy to service and update apps on standard mobile devices.

The C-touch tag is based on thin-film transistor technology and is powered by a thin-film battery or a thin-film photovoltaic cell that converts light from the touchscreen. The 12-bit thin-film capacitive identification tag achieves up to 36bits per second data transfer rates at 0.6V supply voltage, which is compatible with commercially available touchscreen devices without requiring modifications. The flexible thin-film integrated circuit has a 0.8cm² on-chip monolithic antenna and dissipates only 38nW of power at 600mV supply voltage.

http://www.imec.be

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SYSGO and STMicroelectronics demonstrate secure telematics

Thu, Dec 19, 2019

Real-time operating system (RTOS) for certifiable embedded systems company, SYSGO has jointly developed the Automotive Secure Gateway, based on STMicroelectronics’ Telemaco3P SoC.

The Telemaco3P SoC is an automotive processor for secure telematics and connectivity, which is combined with SYSGO`s PikeOS hypervisor-based RTOS, which brings avionics-grade safety and security to the automotive market, says the company.

The Telemaco3P platform ensures a secure connection between the vehicle and the cloud. Its asymmetric multi-core architecture is built upon powerful application processors as well as an independent controlled area network (CAN) control sub-system with optimised power management. Its ISO 26262 silicon design, embedded hardware security module and automotive-grade qualification up to +105 degrees C ambient temperature enable it to be used in a range of secure telematics applications supporting high-throughput wireless connectivity and over-the-air (OTA) firmware upgrades.

PikeOS extends the concept of secure telematics by encapsulating all communications channels and all applications in individual partitions, using a positive-security concept. This means that individual partitions cannot communicate with each other unless explicitly allowed and configured by the developer. The strict separation on the kernel level ensures that any malfunction or malicious attack will not impact the software running in partitions other than the one originally affected. PikeOS is currently the only RTOS/hypervisor certified to Common Criteria (EAL 3+). It has been used in a range of critical safety and security applications in the avionics, railway, and automotive industries.

The Automotive Secure Gateway implements a comprehensive security concept including a virtualised firewall, an intrusion detection system (IDS), fast and secure boot capabilities and a secure OTA update process. It supports secure cloud communications via LTE, as well as secured Wi-Fi, Bluetooth, Ethernet and CAN connectivity within the car.

At CES 2020, ST and SYSGO will demonstrate how the Automotive Secure Gateway can detect and effectively mitigate OTA attacks. Demos will take place at CES 2020 in Las Vegas, Nevada, USA, in the Automotive Grade Linux showcase in the Smart City exhibition (Westgate Booth 1815) and in SYSGO’s hospitality suite in the Westgate Hotel (floor 18, suite 1830).

https://www.st.com

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Renesas collaborates with Xilinx on Versal ACAP reference designs

Wed, Dec 18, 2019

Power semiconductors from Renesas and timing solutions from its subsidiary, IDT, support the Xilinx Versal adaptive compute acceleration platform (ACAP) devices featured on the Xilinx VCK190 evaluation kit and the Renesas VERSALDEMO1Z power reference board.

The 7nm process Versal is the industry’s first ACAP platform that addresses applications in data centre, automotive, 5G wireless, and wired and defence markets, says Renesas.

The company provides turnkey clocking and power reference boards that help system developers jumpstart Versal ACAP designs. For developers creating complex, compute-intensive systems that demand flexible and high-performance power delivery and timing, the collaboration has resulted in pre-validated reference designs that allow developers to rapidly develop and optimise system performance and power efficiency.

The Xilinx VCK190 is the first Versal AI Core series evaluation kit. It is based on the VC1902 Versal AI Core series ACAP, providing AI inference and signal processing throughput for cloud, network, and edge applications. The kit features complete timing solutions including the 8A34001 ClockMatrix system synchroniser for IEEE1588 and eCPRI applications, 8T49N240/8T49N241 Universal Frequency Translators for low-jitter and flexible transceiver SerDes clocking, a programmable clock generator and clock buffer/multiplexer for PCIe interface.

The Renesas VERSALDEMO1Z power reference board provides full power rails for the Versal ACAP’s adaptable engines, AI engines, scalar engines, and external DDR memory. The board is a complete power supply solution featuring one member of the ISL68xxx digital multiphase PWM controller family and multiple members of the ISL99xxx smart power stage family to provide high-efficiency and scalable Vcore power. There are also ISL91211A power management IC (PMIC) and DC/DC regulators.

The Renesas VERSALDEMO1Z power reference board is available now from Renesas Electronics.

Renesas Electronics delivers semiconductors that enable billions of connected, intelligent devices, microcontrollers, analogue, power, and SoC products for automotive, industrial, home electronics, office automation, and information communication technology applications.

http://renesas.com

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MEMS analogue accelerometers tolerate temperature fluctuations

Wed, Dec 18, 2019

Enhanced temperature performance, low cost, general purpose, analogue, surface mount accelerometers have been launched by Silicon Designs. There are eight models in the Model 1522 series ranging from ±2g to ±400g.

According to Silicon Designs, the Model 1522 series provides reliable vibration and acceleration measurements within more thermally demanding zero-to-medium frequency applications. These can be characterised by large or rapid temperature fluctuations or, where high or low temperature extremes must otherwise be maintained over an extended time frame. The accelerometers also provide superior bias and scale factor performance over an expanded operating temperature range of -55 to +125 degrees C, says the company, further responding to both AC and DC acceleration.

The Model 1522’s robust design combines a micro-machined capacitive sense element together with a custom integrated circuit (IC). The circuit includes both a sense amplifier and a ±4V differential output stage. An additional integral temperature sensor facilitates the self-correction of any previously characterised bias and scale factor temperature dependence for any one particular accelerometer. All accelerometer internal components are housed within a hermetically-sealed and nitrogen-damped LCC surface mount package. Units are also RoHS-compliant.

Each Model 1522 series accelerometer is made to be virtually identical within a given g-range, says Silicon Designs. Units are tested in-house, programmed, calibrated and verified within a climate chamber environment for continued measurement accuracy and reliability, particularly under thermally volatile conditions. Each accelerometer is marked with a serial number for traceability and is shipped with an initial test report. The test report lists measured bias, scale factor, bias and scale factor temperature coefficients, linearity, operating current and DV frequency response/phase plots.

The accelerometers are in production and available for immediate shipment.

Silicon Designs was founded in 1983 with the goal of improving the accepted design standard for traditional MEMS capacitive accelerometers. At that time, industrial-grade accelerometers were bulky, fragile and costly. The engineering team at Silicon Designs listened to customers who required more compact, sensitive, rugged and reasonably priced accelerometer modules and chips, which also offered high performance.

https://www.silicondesigns.com

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Flexible tags communicate with standard touchscreens

SYSGO and STMicroelectronics demonstrate secure telematics

Renesas collaborates with Xilinx on Versal ACAP reference designs

MEMS analogue accelerometers tolerate temperature fluctuations

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