Abstract: Systems and methods are described for personal video recorders (PVRs) and other devices configured for recording and playing back media content from a data storage unit, preferably a random access unit such as a hard drive. A system is described having network connectivity, such as a power-line communications, with other PVRs or similar units, wherein media content can be automatically shifted from one unit to another over the network, such as in response to changes in available storage space. Content transfers and deletions within the system being intelligently performed based on content status, user preference settings, and user preference information such as received from a preference engine, toward optimizing the value to the user of the content which is retained network wide. An additional aspect provides content restoration after mistaken deletion by the user or automated deletion functions.

Abstract: A method of intra mode prediction uses a block of pixels and their horizontal Hpos and vertical Vpos pixel positions and adjacent horizontal and vertical pixels within an input picture frame signal as inputs for a method for selecting a lowest Sum of Absolute Transformed Differences (SATD) intra mode among intra modes among the horizontal, vertical, and steady state (DC) intra modes for use in advanced video coding algorithms, such as MPEG-4 Part 10 and H.264/AVC. Associated costs are calculated for each of the intra modes are used to select the output of the best intra mode. The method reduces the unimproved computational cost of three 2D 4×4 Hadamard transformations (which is equivalent to 24 1D 4 point transformations) to just 4 1D 4 point transformations for a significant computational improvement. As horizontal and vertical panning is frequently used in video imagery, this improvement may reduce encoder processing by 80%.

Abstract: A surveillance system configured for communicating with video cameras and other devices connected over a power-line communication network, such as within a residence, or alternatively a commercial building. The system may be manufactured and installed at low cost without the need to route individual cables to each surveillance video camera or device. Bandwidth within the power-line communication network is preferably dynamically allocated to device streams by a server in response to predetermined and event-driven priorities. By way of example, remote communication is supported for allowing remote access to surveillance data and control of the surveillance system. The system may be implemented as a standalone unit or integrated within existing forms of electronics equipment, such as consumer electronics equipment including a television set, a set-top box, or other forms of video-enabled equipment that is adapted for performing power-line network communication.

Abstract: An apparatus or method of efficiently coding high resolution video using texture analysis and synthesis techniques in a scalable video coding framework. A high-resolution video signal is spatially downsampled and encoded into a base-layer. Texture and structure information are extracted from the downsampled signal and base-layer for use by a texture synthesizer. The texture synthesizer is structurally and texturally aware utilizing edge information from a base-layer of the synthesizer to improve synthesis. After synthesis, a video quality assessor directs enhancement-layer coding of unacceptably synthesized areas by alternate (non-textural) coding means, such as conventional AVC or MPEG-2 coding. In one mode, the quality assessor iteratively improves synthesis of certain blocks to make them acceptable for enhancement-layer coding. The apparatus or method outputs a bit stream, or bit streams, containing both the coded base-layer and the enhancement-layer.

Abstract: Although recording of usage data is common in scholarly information services, its exploitation for the creation of value-added services remains limited due to concerns regarding, among others, user privacy, data validity, and the lack of accepted standards for the representation, sharing and aggregation of usage data. A technical, standards-based architecture for sharing usage information is presented. In this architecture, OpenURL-compliant linking servers aggregate usage information of a specific user community as it navigates the distributed information environment that it has access to. This usage information is made OAI-PMH harvestable so that usage information exposed by many linking servers can be aggregated to facilitate the creation of value-added services with a reach beyond that of a single community or a single information service.

Abstract: A system and apparatus for supporting newly planted trees or other upright for use with a plurality of stakes that have been positioned adjacent and around the tree to be supported. In one aspect of the invention, the individual stakes are rigidly secured together by elements which are vertically movable along the stakes and releasably secured to the stakes at desired vertical positions. In another aspect of the invention, flexible tie members interconnect the tree trunk with a vertical stake. The connection between the tie member and its associated stake is such that the connection may be releasably locked to the stake at different vertical positions along the stake.

Abstract: Generation of Terahertz range (300 GHz to 3 THz) frequencies is increasingly important for communication, imaging and spectroscopic systems, including concealed object detection. Apparatus and methods describe generating multiple phase signals which are phase-locked at a fundamental frequency, which are then interleaved into an output which is a multiple of the fundamental frequency. By way of example phase generators comprise cross-coupling transistors (e.g., NMOS) and twist coupling transistors (NMOS) for generating a desired number of phase-locked output phases. A rectifying interleaver comprising a transconductance stage and Class B amplifiers provides superimposition of the phases into an output signal. The invention allows frequency output to exceed the maximum frequency of oscillation of a given device technology, such as CMOS in which a 324 GHz VCO in 90 nm digital CMOS with 4 GHz tuning was realized.

Abstract: A system and method for combining an additive with a carrier fluid in a spray nozzle. The carrier fluid is fed to one or more nozzles that include an embedded Venturi. The Venturi includes an induction port connected to an additive supply. As the carrier fluid flows through the nozzle, the flow creates a vacuum or suction force that draws in the additive. Of particular advantage, the concentration of the additive combined with the carrier fluid can be maintained constant even if the flow rate of the carrier fluid varies. The system and process are particularly well suited for spraying fields, such as crop fields or orchards, with an agrochemical.

Abstract: A trigger activated switch for a firearm is disclosed. The switch comprises a Hall-effect sensor configured to be mounted in the housing or frame of the firearm, and a magnet disposed on a retractable member coupled to the trigger of the gun. The trigger comprises a firing module rotatably coupled to the housing to have a range of motion with respect to the housing from a non-firing position to a firing position. The retractable member is moveably coupled to the firing module and articulates between a non-engaged position and engaged position with respect to the firing module. The Hall-effect sensor is attached to the firearm housing in proximity to the magnet when the retractable member is in the non-engaged position. Motion of the retractable member from the non-engaged position to the engaged position causes the magnet to articulate away from the sensor, which then activates an auxiliary device upon sensing motion of the retractable member.

Abstract: A wireless intelligent switch engine (WISE) is described. The wireless intelligent switch engine provides for automatic switching between different physical wireless interfaces in mobile devices while roaming to maintain a wireless network connection. WISE functions as a bridge between a mobile device and multiple wireless network interfaces to provide automatic and seamless switching among networks while roaming. The mobile device sees WISE as a LAN interface and communicates with WISE using the TCP/IP protocol stack, thus providing a PPP-less configuration that uses the TCP/IP protocol stack regardless of the wireless interface.

Abstract: A smart search menu is displayed on a video display unit, wherein the menu includes an accumulated search criteria list and a results list. A user's selection is input from the menu as a selected element, and, if the user has selected an element of the search criteria, then the information is output to the video display unit. By accumulating the search criteria as a list of search criteria, the user is less likely to be “lost” within the search menus, and may therefore more quickly find desired content within a content database.

Abstract: Fluidic nanotube devices are described in which a hydrophilic, non-carbon nanotube, has its ends fluidly coupled to reservoirs. Source and drain contacts are connected to opposing ends of the nanotube, or within each reservoir near the opening of the nanotube. The passage of molecular species can be sensed by measuring current flow (source-drain, ionic, or combination). The tube interior can be functionalized by joining binding molecules so that different molecular species can be sensed by detecting current changes. The nanotube may be a semiconductor, wherein a tubular transistor is formed. A gate electrode can be attached between source and drain to control current flow and ionic flow. By way of example an electrophoretic array embodiment is described, integrating MEMs switches.

Abstract: A washout container to which are mounted inclined ramps that allow a transit mixer, concrete pumping truck or other concrete handling vehicle to drive up over a portion of the container for dumping excess concrete and washing out waste concrete. The container cross-section may be rectangular to semi-circular, and is preferably fabricated with a steel structure. A watertight latching door assembly is coupled to the container to prevent leakage of collected liquid concrete waste material while allowing solidified concrete materials to be unloaded at a disposal site. The interior of the container is preferably lined with a material to which concrete will not adhere. The liner may be applied as a coating to the interior of the container or as a solid material retained within the container. In this way, solidified waste concrete can be easily removed from the container at the disposal site and preferably crushed for recycling.

Abstract: A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |?1|, |?2|?270°. The coupler can be used in many applications, for example as a mode decoupling network in a dual-band front-end MIMO system. The inclusion of a CRLH delay line is also described which alters the phase relationship of the signals and is particularly well suited for extending pattern diversity in response to frequency.

Abstract: High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.

Abstract: A system for monitoring strain as an indicator of biological conditions, such as spinal fusion, glucose levels, spinal loading, and heart rate. The system includes an inter-digitated capacitor sensor, and RF transmitter, and an associated antenna, all of which are microminiature or microscopic in size and can be implanted in a biological host such as a human or animal. An inductively coupled power supply is also employed to avoid the need for implantation of chemical batteries. Power is provided to the sensor and transmitter, and data is transmitted from the sensor, when an external receiving device, such as a handheld RF ID type receiver, is placed proximate the location of the implanted sensor, transmitter and inductively coupled power supply. The implanted sensor, transmitter and inductively coupled power supply can be left in place permanently or removed when desired.

Abstract: A system for monitoring strain as an indicator of biological conditions, such as spinal fusion, glucose levels, spinal loading, and heart rate. The system includes an inter-digitated capacitor sensor, and RF transmitter, and an associated antenna, all of which are microminiature or microscopic in size and can be implanted in a biological host such as a human or animal. An inductively coupled power supply is also employed to avoid the need for implantation of chemical batteries. Power is provided to the sensor and transmitter, and data is transmitted from the sensor, when an external receiving device, such as a handheld RF ID type receiver, is placed proximate the location of the implanted sensor, transmitter and inductively coupled power supply. The implanted sensor, transmitter and inductively coupled power supply can be left in place permanently or removed when desired.

Abstract: Systems and methods are described for increasing data transfer efficiency between networks. The invention being particularly well suited when establishing connectivity between wireless networks, such as based on IEEE 802 standards, and traditionally wired network protocols (often referred to as internet protocols), such as TCP/IP and UDP. The invention provides formatting of network packets and then processing of network packets according to one or more optimization processes. One optimization process comprises performing partial packet retransmissions to increase network efficiency, especially in high bit error rate networks such as wireless networks. Another optimization process comprises suppressing unnecessary packet acknowledgements, therein reducing burst traffic and saving substantial overhead in lossy networks. Additional aspects of the invention provide further benefits.

Abstract: The present invention provides a method and apparatus for a trusted service provider (TSP) which assists with the secure exchange of data across the public switched telephone network. Communications are routed via a TSP, which uses cryptographic techniques to conceal the identities (e.g., telephone numbers) of the call initiator and call recipient, thereby preventing traffic analysis attacks. The TSP also performs cryptographic handshakes with the call initiator and call recipient to authenticate callers. The TSP further provides cryptographic keying material which communicants may use to help protect communications and to directly authenticate and identify each other. Although the TSP is trusted to negotiate the connection and is involved in the process, the communicants can perform their own key agreement and authentication for protecting data routed via the TSP.