The dynamic range of an RF receiver is the key parameter for determining the performance of the receiver, relating directly to the sensitivity and ability to tolerate interference without distortion of the desired signal. The definition of the dynamic range of a receiver varies with the spectral environment of use ranging from sparsely populated Electronic Intelligence (ELINT) settings, to dense, high-power co-site interference in wireless infrastructure deployments in an urban setting. Traditional approaches to improve receiver dynamic range consist of using filters to either pass only the bands of interest or reject the source(s) of known interference; or using time-division access techniques to eliminate simultaneous operation of powerful transmitters and receivers in a co-located system. Both of these approaches tend to constrain receivers to operate within narrow, fixed frequency bands or highly controlled emplacements. With the drive of modern wireless communications and electronic warfare towards flexible, multi-mode, multi-band operation, these constraints must be mitigated by the development of new receiver technologies and architectures to increase receiver dynamic range in a flexible manner. The following review covers recent patents advancing high-dynamic range receiver development through the use of: material properties for wideband signal processing, RF photonic components, and reconfigurable RF front-end circuitry.
Two areas are discussed in this article. The first area is the development of antennas dedicated to electromagnetic ablation. Antennas are important for radiating electromagnetic power to the ablated area with precision. The second area is the development of methods used for sensing the temperature of a localized biological tissue. This is vital to minimize damage to surrounding healthy tissues during an ablation procedure. Research is conducted in the area of temperature sensing methods to more efficiently detect thermal conductivity and diffusivity of biological tissues. Basically, in an ablation procedure, electromagnetic power is transformed into heat for ablation purposes. A description of a patented state-of-the-art microwave ablation system is given.
As complementary metal-oxide-semiconductor (CMOS) process technologies scale below the sub 50-nm feature sizes, the conventional top-down approaches need to be modified to cope with the increased process variations, interconnect processing difficulties, and other newly aggravated physical effects. These techniques result in increased cost of production and longer time to market. In contrast, “bottoms-up” techniques are potentially less expensive, with feature sizes comparable to molecular dimensions. DNA, for example, is an attractive candidate to realize molecular nanodevices because of its intrinsic functionalities like self-assembly, molecular recognition and replication. This review article discusses important patents and approaches that describe the design and realization of DNA based nanoelectronics using bottoms-up techniques. First, we discuss briefly about the building blocks of molecular electronics. Next, we will report on approaches for the fabrication of DNA-templated nanowires. Finally, we will discuss the inventions related to the fabrication of DNA and carbon nanotube (CNT) based transistors.
In this paper, a survey on the previous research undertaken in the area of operating systems for reconfigurable computers will be given, then according to the reconfigurable architectures, reconfigurable system models and their requirements are investigated. In addition, the main functionalities of the Operating System for Reconfigurable Systems (OS4RS) are discussed. An overview on existing work is given. A parallel scheduling algorithm in hardware and software for minimizing the rejection rate is proposed. Also, the efficient ways of caching in on-line mode and optimal caching in on-line case are presented. In this article, related important patents are also discussed.
The ultra wideband (UWB) is one of the most promising technologies for future communication systems due to its high-speed data rate and excellent immunity to multipath interference. In this context, the UWB antenna design plays a unique role because it is the “ears” and “eyes” of any wireless communication system. Some of the critical requirements in UWB antenna design are: ultra wide bandwidth, directional or omni-directional radiation patterns, constant gain and group delay over the entire band, high radiation efficiency and low profile. This work reviews the characteristics and the configuration of the most important patents on UWB antennas including the recent patents on this topic.
A review on electronic coin detection technologies currently in use in coin selection devices is presented. Starting from conventional techniques employed in the last few decades, recent methods which exploit innovative sensors and signal processing techniques are presented which allow high-performance coin discrimination with low-cost electronics for the sensors and data processing. Some of the most relevant patents in the field of electronic coin detection are discussed in this article, ranging from foundational patents to recent proposals from the authors and other researchers.
This paper summarizes recent patents related to the use of graphical programming languages for the development of embedded computing applications. Patents in three specific areas of application are described in the paper. The first set of patents relates to general aspects of using graphical programming for applications targeted to embedded devices. The second area relates to the use of graphical programming environments to enable representations of system behavior using domain-specific “models of computation.” These models of computation may include control block diagrams, statecharts, textual math, etc. The third application area is the use of a graphical programming language to represent system behavior that may be targeted to any of a plurality of different embedded devices. In this case, the system behavior is abstracted to a general form and is not written in a manner that is specific to a particular device. Finally, the current and future developments in the field are briefly discussed.
Power systems protection plays a crucial role in secure and reliable power supply. Modern power systems protection ranges from digital recording equipments to advanced disturbance analysis systems to protective equipments like relays. This article focuses on recent patents filed in these fields. Twenty five relevant patents are analyzed and presented as a synopsis to highlight the current patent trend in the power systems protection field.