Patent application number | Description | Published |
20120185897 | METHODS AND APPARATUS FOR CENTRALIZED AND DECENTRALIZED EMERGENCY ALERT MESSAGING - Apparatus and methods for providing emergency alert system (EAS) data to subscribers of a content-based network for multiple locations including via mobile devices. In one embodiment, the apparatus comprises a server performing real-time receipt and encapsulation of the EAS data, transport of the EAS data to client devices over an IP or other packet-switched network, and use of applications running on the client devices to decode and display the EAS data. In one variant, a centralized EAS (CEAS) entity is used to aggregate and distribute EAS messages to video registration servers (VRS), which use stored client device data and user preferences to map delivery of relevant EAMs over the IP network. In another variant, instant messaging (IM) infrastructure is used to deliver and display at least portion of the EAS data via a separate transport process. | 07-19-2012 |
20130160070 | METHODS AND APPARATUS FOR EVENT LOGGING IN AN INFORMATION NETWORK - Methods and apparatus for logging, analysis, and reporting of events such as reboots in a client device (e.g., consumer premises equipment in a cable network) using applications. In one aspect, an improved event logging and monitoring system is provided within the device with which the application(s) can interface to record event or error data. In one exemplary embodiment, the client device comprises a digital set-top box having Java-enabled middleware adapted to implement the various functional aspects of the event logging system, which registers to receive event notifications (including resource exhaustion data) from other applications running on the device. The network operator can also optionally control the operation of the logging system remotely via a network agent. Improved client device and network configurations, as well as methods of operating these systems, are also disclosed. | 06-20-2013 |
20140237507 | METHOD AND SYSTEM FOR DEVICE DISCOVERY AND CONTENT MANAGEMENT ON A NETWORK - Apparatus and methods for downloading selected multimedia content and applications. In one embodiment, the apparatus and methods enable various options or functionalities for programming content over a home network. A web-based user interface on a consumer device controls a set-top box (STB) over a local home network is utilized. An initial process connects the consumer device to an application server for the necessary web software. After discovery of both the consumer device and the STB on the local home network, an initial page of the application is loaded and the application calls the web services on the STB via the home network to retrieve data and control the STB with a compatible web browser on the consumer device. | 08-21-2014 |
20150026335 | METHODS AND APPARATUS FOR EVENT LOGGING IN AN INFORMATION NETWORK - Methods and apparatus for logging, analysis, and reporting of events such as reboots in a client device (e.g., consumer premises equipment in a cable network) using applications. In one aspect, an improved event logging and monitoring system is provided within the device with which the application(s) can interface to record event or error data. In one exemplary embodiment, the client device comprises a digital set-top box having Java-enabled middleware adapted to implement the various functional aspects of the event logging system, which registers to receive event notifications (including resource exhaustion data) from other applications running on the device. The network operator can also optionally control the operation of the logging system remotely via a network agent. Improved client device and network configurations, as well as methods of operating these systems, are also disclosed. | 01-22-2015 |
Patent application number | Description | Published |
20110120114 | VEHICLE ENERGY HARVESTING DEVICE HAVING A CONTINUOUS LOOP OF SHAPE MEMORY ALLOY - An energy harvesting system comprises a first region having a first temperature and a second region having a second temperature. A conduit is located at least partially within the first region. A heat engine configured for converting thermal energy to mechanical energy includes a shape memory alloy forming at least one generally continuous loop. The shape memory alloy is disposed in heat exchange contact with the first region and the second region. A carrier surrounds the conduit such that the carrier is driven to rotate around the conduit by the shape memory alloy in response to the temperature difference between the first region and the second region. | 05-26-2011 |
20110124451 | VEHICLE ENERGY HARVESTING DEVICE HAVING A CONTINUOUS LOOP OF SHAPE MEMORY ALLOY - An energy harvesting system comprises a first region having a first temperature and a second region. A conduit is located at least partially within the first region. A heat engine configured for converting thermal energy to mechanical energy includes a shape memory alloy forming at least one generally continuous loop. The shape memory alloy is disposed in heat exchange contact with the first region and the second region. The shape memory alloy is driven to rotate around at least a portion of the conduit by the response of the shape memory alloy to the temperature difference between the first region and the second region. At least one pulley is driven by the rotation of the shape memory alloy, and the at least one pulley is operatively connected to a component to thereby drive the component. | 05-26-2011 |
20110165981 | ENERGY HARVESTING SYSTEM FOR A VEHICLE - An energy harvesting system includes a heat engine and a component. The heat engine includes a belt, a first member, and a second member. The belt includes a strip of material and at least one wire at least partially embedded longitudinally in the strip of material. The wire includes a shape memory alloy material. A localized region of the at least one wire is configured to change crystallographic phase between martensite and austenite and either contract or expand longitudinally in response to exposure to a first temperature or a second temperature such that the strip of material corresponding to the localized region also contracts or expands. The first member is operatively connected to the belt and moves with the belt in response to the expansion or contraction of the belt. The component is operatively connected to the first member such that movement of the first member drives the component. | 07-07-2011 |
20120216523 | ENERGY HARVESTING SYSTEM - An energy harvesting system for converting thermal energy to mechanical energy includes a heat engine that operates using a shape memory alloy active material. The shape memory alloy member may be in thermal communication with a hot region at a first temperature and a cold region at a second temperature lower than the first temperature. The shape memory alloy material may be configured to selectively change crystallographic phase between martensite to austenite and thereby one of contract and expand in response to the first and second temperatures. A driven component, such as an electric generator, may be selectively coupled with the heat engine through a coupling device, which may be controlled via a controller. | 08-30-2012 |
20120216524 | SHAPE MEMORY ALLOY HEAT ENGINES AND ENERGY HARVESTING SYSTEMS - A heat engine includes a first rotatable pulley and a second rotatable pulley spaced from the first rotatable pulley. A shape memory alloy (SMA) element is disposed about respective portions of the pulleys at an SMA pulley ratio. The SMA element includes first spring coil and a first fiber core within the first spring coil. A timing cable is disposed about disposed about respective portions of the pulleys at a timing pulley ratio, which is different than the SMA pulley ratio. The SMA element converts a thermal energy gradient between the hot region and the cold region into mechanical energy. | 08-30-2012 |
20120216526 | SHAPE MEMORY ALLOY HEAT ENGINES AND ENERGY HARVESTING SYSTEMS - An energy harvesting system in thermal communication with a hot region and a cold region includes a hot end heat engine in thermal communication with the hot region, a cold end heat engine in thermal communication with the cold region, and an intermediate heat engine disposed between the hot end heat engine and the cold end heat engine. The hot end heat engine includes a hot end shape memory alloy (SMA) element, the cold end heat engine includes a cold end SMA element disposed, and the intermediate heat engine includes an intermediate SMA element. A hot side of the intermediate SMA element is in thermal communication with a cold side of the hot end SMA element. A cold side of the intermediate SMA element is in thermal communication with a hot side of the cold end SMA element. | 08-30-2012 |
20130157125 | REINFORCED BATTERY ELECTRODES - The gravimetric and volumetric efficiency of lithium ion batteries may be increased if high capacity materials like tin and silicon may be employed as the lithium-accepting host in the negative electrode of the battery. But both tin and silicon, when fully charged with lithium, undergo expansions of up to 300% and generate appreciable internal stresses which have potential to spall off material from the electrode on each discharge-charge cycle, resulting in a progressive reduction in battery capacity, also known as battery fade. A method of reinforcing such electrode materials by incorporating within them fiber reinforcements or shaped, elongated reinforcements fabricated of shape memory alloy is described. Electrode materials incorporating such reinforcements are less prone to damage under applied stress and so less prone to battery fade. | 06-20-2013 |
Patent application number | Description | Published |
20120174573 | MULTI-SEGMENTED ACTIVE MATERIAL ACTUATOR - A multi-segmented active material actuator producing a variable, tailored, or staged/staggered stroke in response to an activation signal, including a plurality of segments joined in series, having differing constituencies and geometric configurations, and presenting differing activation thresholds, activation periods/rates, and/or strokes as a result. | 07-12-2012 |
20120198835 | ACTIVE MATERIAL WIRE ACTUATORS HAVING REINFORCED STRUCTURAL CONNECTORS - An assembly for and method of reinforcing interconnection between an active material wire actuator, such as a shape memory alloy wire, and structure, includes the generation and engagement of an enlarged formation affixed to or integrally formed with the actuator. | 08-09-2012 |
20130153816 | MAGNETORHEOLOGICAL FLUIDS INCLUDING SHAPE MEMORY ALLOYS - Magnetorheological (MR) fluids are disclosed herein. An example of the MR fluid includes a carrier fluid, magnetic particles disposed in the carrier fluid, and non-magnetic particles disposed in the carrier fluid. The non-magnetic particles are particles of a shape memory alloy having an Austenite finish temperature (A | 06-20-2013 |
20130157039 | STRUCTURAL MEMBERS INCLUDING SHAPE MEMORY ALLOYS - Structural members are disclosed herein. One example of the structural member includes a composite structure and a filler incorporated therein. The filler at least dampens any of sound wave propagation through the composite structure or vibration of the composite structure. The filler includes particles of a shape memory alloy having an Austenite finish temperature (A | 06-20-2013 |
20130240096 | PHASE CHANGE GRADED SMA ACTUATORS - A shape memory alloy element is disclosed that is configured to undergo a graded phase change along a dimension of the shape memory alloy element in response to thermal stimulus. This graded phase change produces a graded displacement response of the shape memory element. | 09-19-2013 |
20140026555 | ENERGY HARVESTING SYSTEM FOR A VEHICLE - An energy harvesting system includes a heat engine and a component. The heat engine includes a belt, a first member, and a second member. The belt includes a strip of material and at least one wire at least partially embedded longitudinally in the strip of material. The wire includes a shape memory alloy material. A localized region of the at least one wire is configured to change crystallographic phase between martensite and austenite and either contract or expand longitudinally in response to exposure to a first temperature or a second temperature such that the strip of material corresponding to the localized region also contracts or expands. The first member is operatively connected to the belt and moves with the belt in response to the expansion or contraction of the belt. The component is operatively connected to the first member such that movement of the first member drives the component. | 01-30-2014 |
20140060036 | COMPENSATING FOR INCOMPLETE REVERSAL IN MECHANISMS INCORPORATING SHAPE MEMORY ALLOY WIRE - Shape memory alloy (SMA) actuating elements are commonly simpler and of lower mass than alternative actuator designs and may find particular application in the transportation industry. Such SMA-powered devices are usually reliable and long-lived but the phase transformations which occur in the SMA alloy and are responsible for its utility are not totally reversible. This irreversibility, a consequence of irrecoverable strain, may progressively degrade the long-term actuator performance as the irrecoverable strain accumulates over many operating cycles. Methods and devices for compensating for these effects and extending the useful cycle life of SMA actuators are described. | 03-06-2014 |