Abstract: There is provided a computer-implemented method of estimating transmitted signals in a communication system, the signals being transmitted by a transmitter to a receiver over a communication channel having a channel response, the method comprising estimating the transmitted signals based on generated trial sequences minimizing the channel response between adjacent received signals. There is also provided a receiver, a signal detector device and a communication system adapted to estimated transmitted signals in a communication system by generating trial sequences and determining the generated trial sequences minimizing the channel response between adjacent received signals. The present invention is particularly adapted for OFDM communication systems.

Abstract: The present invention proposes a demodulator device, a receiver and a demodulation method for M-ary amplitude shift keying systems (MASK) that requires partial knowledge of the CSI, namely, the channel attenuation coefficient. Therefore, the new demodulator, receiver and demodulation method do not require the knowledge of the channel phase shift. Consequently, no complicated channel estimation techniques are required, and the system will be very robust to the system impairments such as phase noise, I-Q imbalance, etc. In this sense, the new technique is denoted as semi-coherent demodulation (SCD). To reduce the complexity of the new SCD, a suboptimal demodulator is derived which has much lower complexity than the optimal while providing almost the same error probability.

Abstract: There is provided a device for attachment to an object for determining whether the device has been tampered with. The device has a body, removably attachable to an object, and configured to maintain a substantially fixed form or shape when attached to an object. A transducer is provided, connected to the body, configured to detect a change of form of the body. An indicator, connected to the transducer is configured to store the position of the body when attached to an object and indicate if the body has changed position after it has been attached.

Abstract: There is provided a device for attachment to an image recording apparatus, the device comprising a blocker, attachable to said image recording apparatus, configured to inhibit said apparatus from recording an image when attached thereto; a transducer, connected to the blocker, configured to detect the change of position of the blocker between an attached position, wherein said apparatus is inhibited, and another position; and a controller, connected to the transducer, configured to store the position of the blocker when attached to said image recording apparatus and indicate if the blocker has changed position after it has been attached.

Abstract: The embodiments herein relates to a hybrid non-volatile memory cell system and architecture for designing integrated circuits. The system comprises CMOS access transistor connected to a memristor which stores a data based on a resistance. The system has a word line for accessing the hybrid memory and two bit lines carrying data of mutually opposite values for transferring a data from the memory. The two terminals of the transistor are connected respectively to a first terminal of the memristor and to a first bit line. The gate terminals of the transistors are coupled together to form a word line. The access transistors control the two bit lines during a read and write operation. A control logic performs a read and write operation with the hybrid memory cells. The memory architecture prevents a power leakage during data storage and controls a drift in a state during a read process.

Abstract: A system, method, and device are provided that receive an image sequence from a camera, processes the image sequence, extract gaze information, map the user's eye movements to movement of the mouse cursor, and initiates mouse clicks based on user behavior.

Abstract: The embodiments herein relates to a hybrid non-volatile memory cell system and architecture for designing integrated circuits. The system comprises CMOS access transistor connected to a memristor which stores a data based on a resistance. The system has a word line for accessing the hybrid memory and two bit lines carrying data of mutually opposite values for transferring a data from the memory. The two terminals of the transistor are connected respectively to a first terminal of the memristor and to a first bit line. The gate terminals of the transistors are coupled together to form a word line. The access transistors control the two bit lines during a read and write operation. A control logic performs a read and write operation with the hybrid memory cells. The memory architecture prevents a power leakage during data storage and controls a drift in a state during a read process.

Abstract: The embodiment herein generally relates to a system to apply moments to a user, particularly during gait. The system is a portable gyroscopic-assisted system, mounted on a user's body, particularly the upper body, particularly to influence orientation of users having difficulty with balancing during gait. The system comprises a plurality of variable-speed control moment gyroscopes (VSCMGs). The VSCMGs generate moments, particularly to counteract a fall to any direction. The VSCMGs are placed close to the center of mass of the user. The couple moments of the VSCMGs are transmitted to the user through a support structure that is tightly attached to the user. Particularly, the system controls moments based on detecting pre-fall conditions.

Abstract: The embodiments herein relates to a hybrid non-volatile memory cell system and architecture for designing integrated circuits. The system comprises CMOS access transistor connected to a memristor which stores a data based on a resistance. The system has a word line for accessing the hybrid memory and two bit lines carrying data of mutually opposite values for transferring a data from the memory. The two terminals of the transistor are connected respectively to a first terminal of the memristor and to a first bit line. The gate terminals of the transistors are coupled together to form a word line. The access transistors control the two bit lines during a read and write operation. A control logic performs a read and write operation with the hybrid memory cells. The memory architecture prevents a power leakage during data storage and controls a drift in a state during a read process.

Abstract: The various embodiments herein provide a Uniform Circular Displaced Sensor Array (UC-DSA) system and method for measuring/estimating Direction of Arrival (DOA) of a wireless signal. The UC-DSA system comprises at least a set of two circular antenna arrays. The two circular antenna arrays have a number of elements. A Radio frequency (RF) receiver captures a wireless signal incident on a circular antenna array. A Direction of Arrival (DOA) estimator processes a received input signal and a Triangulation system provides the exact location of the source of the wireless signal. The two circular antenna arrays with the same number of elements are placed on different radii, and are shifted to have equal separation between inner elements and outer elements.

Abstract: A chaotic cryptographic technique for orthogonal frequency division multiplexing (OFDM) based wireless/wired communication systems is implemented with an OFDM symbol structure based on symmetric key cryptography. At the receiver side, data detection becomes infeasible without knowledge of the secret key. Without the knowledge of the key, the signal will be a noise-like signal. The computational power required to implement the technique is very low, rendering the system an attractive option for high data rate communications based on OFDM technology. The system security is proportional to (L×N)! where N is the number of subcarriers in the OFDM system and L is the number of OFDM symbols involved in the encryption process. For OFDM applications where ?256, L may be set to 1 and breaking the system would require N! exhaustive-search trials. In the case that N<256, L may be increased.

Abstract: A new devices structure of nano tunneling field effect transistor based on nano metal particles is introduced. The nano semiconductor device, comprising a source and a drain, wherein each of the source and drain comprise an implanted nano cluster of metal atoms, wherein the implanted nano cluster of metal atoms forming the source has an average radius in the range from about 1 to about 2 nanometers, and the implanted nano cluster of metal atoms forming the drain has an average radius in the range from about 2 to about 4 nanometers. Processes for producing the nano semiconductor device are detailed.

Abstract: A system, method, and device are provided that receive an image sequence from a camera, processes the image sequence, extract gaze information, map the user's eye movements to movement of the mouse cursor, and initiates mouse clicks based on user behavior.

Abstract: A chaotic cryptographic technique for orthogonal frequency division multiplexing (OFDM) based wireless/wired communication systems is implemented with an OFDM symbol structure based on symmetric key cryptography. At the receiver side, data detection becomes infeasible without knowledge of the secret key. Without the knowledge of the key, the signal will be a noise-like signal. The computational power required to implement the technique is very low, rendering the system an attractive option for high data rate communications based on OFDM technology. The system security is proportional to (L×N)! where N is the number of subcarriers in the OFDM system and L is the number of OFDM symbols involved in the encryption process. For OFDM applications where ?256, L may be set to 1 and breaking the system would require N! exhaustive-search trials. In the case that N<256, L may be increased.

Abstract: Method of fabricating super nano ion-electron source including: placing an assembly of precursor tip and metal ring around the precursor tip below the apex in a FIM chamber; applying dc current from grounded source to the metal ring to heat the ring; gradually applying high voltage to the precursor tip; wherein the metal ring is exposed to a high electric field from the tip, generating Schottky field emission of electrons from the metal ring, the applied electrical field sufficient to cause electrons to be extracted from the metal ring and accelerated to the shank with energy sufficient to dislodge atoms from the shank; and monitoring the evolution of the tip apex due to movement of dislodged atoms from the shank to the apex while adjusting the electrical field, the current or temperature of the metal ring until the apex forms a sharp nanotip with an atomic scale apex.