The Experts below are selected from a list of 33 Experts worldwide ranked by ideXlab platform
Guinand Nils - One of the best experts on this subject based on the ideXlab platform.
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Multidimensional restitution of the vestibular function with a vestibular implant
'American Society for Clinical Pathology (ASCP)', 2019Co-Authors: Guinand NilsAbstract:Bilateral loss of the vestibular (BV) function leads to chronic imbalance and oscillopsia. This condition has a significant negative impact on quality of life, indicating a need to remedy the lack of effective treatment. The concept of the vestibular implant (VI) has emerged, it consists of a modified cochlear implant stimulator with one up to three additional electrodes positioned in contact with the vestibular nerve. An External Processor, fed with motion information captured by a head-fixed motion sensor, is connected to the implanted stimulator. Finally motion modulated electrical stimulation is delivered to the vestibular nerve. Up to now, 13 patients with a BV loss have been implanted. We demonstrated that it is possible to significantly improve or in certain cases to normalize the vestibulo-ocular reflex (VOR) gains. We further showed that the vestibulo-collic reflex could be elicited and that controlled postural responses could be obtained. Finally, the dynamic visual acuity (DVA) while walking has been significantly improved, or even normalized, in 6 subjects. This was the first demonstration of a functional rehabilitation. The presented results reflect the potential of the VI towards a clinically useful device. Moreover, by providing selective stimulations of the vestibular system, the VI opens doors to push the vestibular research beyond the traditional boundaries
Primoz Strojnik - One of the best experts on this subject based on the ideXlab platform.
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multichannel cochlear implant system including wearable speech Processor
Journal of the Acoustical Society of America, 1997Co-Authors: Joseph H Schulman, David I Whitmoyer, John C Gord, Primoz StrojnikAbstract:A tissue stimulating system including an External transmitter for transmitting data to an implanted stimulator including a Processor for generating stimulation signals for application to a plurality of tissue stimulating electrodes. The Processor selectively monitors the electrodes and/or voltages generated in the stimulator and generates stimulator status indicating signals for transmission to the External transmitter. The External Processor receives and processes such status indicating signals.
Aldanzi Luca - One of the best experts on this subject based on the ideXlab platform.
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Data Security for Automotive Embedded Systems: Design and Verification of a Secure Hardware Extension prototype
Pisa University, 2019Co-Authors: Aldanzi LucaAbstract:In recent years, the number of electronics systems embedded in cars has dramatically increased. These devices control a large number of functionalities involving safety (e.g. Anti-block Braking System (ABS) control and Engine control), position (e.g. Global Position System (GPS)) or personal device connectivity (e.g. Bluetooth connection). Such an increased complexity of car electronics has made modern cars more vulnerable to cyber-attacks as there is a large number of potential access points given to a potential malicious entities. For this reason, the automotive industry is focusing towards the research of innovative security solutions to protect in-car systems. A valid approach to the current security demands in Automotive field is the Secure Hardware Extension (SHE) specified by the Hersteller Initiative Software (HIS) consortia, which encloses a set of useful functions for Automotive Security. The SHE improves a generic automotive microcontroller by the addition of a secure zone for the protection of cryptographic parameters (i.e. used in confidentiality-protected communications) and an authentication-based software environment.Therefore, it fulfills the recent needs of the automotive world in terms of confidentiality protection of data flowing over the various networks and a safe HW-SW interaction. In this work a flexible and efficient SHE module has been developed. The implemented SHE architecture consists of three major hardware sub-blocks: a cryptographic core, a cipher keys storage core and a control unit for interfacing with the External world such as a general purpose microProcessor. The cryptographic core is based on a flexible and efficient hardware implementation of the AES algorithm with the possibility of working with the Electronic Code Book (ECB), Cipher Block Chaining (CBC) and Cipher-based Message Authentication Code (CMAC) modes. On the other hand, the cipher keys that are contained within the SHE module can only be manipulated through specific secure interfaces. Furthermore, part of the work was the development of the software to control and verify the SHE functionality, making the HW/SW co-design a fundamental aspect of the project. The communication between the External Processor and the system is an Advanced eXtensible Interface (AXI) bus, which interacts with the SHE by a memory-mapped interface.The novelty introduced by this thesis is the implementation of an efficient SHE and the addition of cryptographic functions as 256-bits keys support for the AES. The involved cryptographic algorithms have been tested against the official test vectors provided by the National Institute of Standard and Technology (NIST). The prototype of the SHE was implemented on a Xilinx Zynq-7000 board reaching a 148MHz clock frequency. The occupation of the final system is lower than 5% of the LUTs and 2% of the registers available on the FPGA. The SHE module has also been synthesized on a 40nm standard-cell CMOS technology at 210MHz leading to a size of 236Kgates. In terms of performance, the reachable throughput at 148MHz frequency is 34Mbps for ECB, 33Mbps for CBC and 16Mbps for CMAC mode
Joseph H Schulman - One of the best experts on this subject based on the ideXlab platform.
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multichannel cochlear implant system including wearable speech Processor
Journal of the Acoustical Society of America, 1997Co-Authors: Joseph H Schulman, David I Whitmoyer, John C Gord, Primoz StrojnikAbstract:A tissue stimulating system including an External transmitter for transmitting data to an implanted stimulator including a Processor for generating stimulation signals for application to a plurality of tissue stimulating electrodes. The Processor selectively monitors the electrodes and/or voltages generated in the stimulator and generates stimulator status indicating signals for transmission to the External transmitter. The External Processor receives and processes such status indicating signals.
Kyoung Mu Lee - One of the best experts on this subject based on the ideXlab platform.
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robot cleaner robot cleaning system and method for controlling the same
2003Co-Authors: Jeonggon Song, Jangyoun Ko, Seungbin Moon, Kyoung Mu LeeAbstract:A robot cleaner, robot cleaning system, and a method for controlling the same, using wireless communications an upwardly-looking camera for photographing an upper image perpendicular to a forward-looking direction of driving the robot cleaner; and a controller for controlling the driving unit to allow the robot cleaner to drive within a cleaning area according to a predetermined driving path, and compensating the driving path by analyzing the image photographed by the upwardly-looking camera. Optional features include second forwardly directed camera to provide a three dimensional image sensors for sensing walls or obstacles and transmission of data to External Processor/controllers by a radio antenna. The inventive system can recognize the robot cleaner position more accurately by using a relatively constant upper image reducing movement error to a target position.
