Patent application number | Description | Published |
20100203905 | PARTITIONED PROXY SERVER FOR FACILITATING POWER CONSERVATION IN WIRELESS CLIENT TERMINALS - A power conservation method and system are provided for conserving power in client terminals by using a partitioned proxy server. The client terminal, having low-power and high-power communication interfaces, may power down its high-power communication interface to conserve power. Prior to shutting off its high-power communication interface, the client terminal may assign a partitioned proxy server to act as its proxy. The partitioned proxy server may include remote and local paging proxies which communicate with each other over an IP network. The remote paging proxy receives paging requests from an access point or the communication network and forwards it to the local paging proxy. The local paging proxy then forwards the paging message to the client terminal via a low-power communication interface. Upon receipt of the paging message via its low-power communication interface, the client terminal may power up its high-power communication interface and directly respond to the paging message. | 08-12-2010 |
20110107387 | CONTROL LINK FOR WIRELESS DISPLAY UNIT - A method comprises establishing a session between a host and a display unit, including transmitting media content according to a television broadcasting standard, and implementing control traffic for the session on a bi-directional control link independent of the television broadcasting standard. | 05-05-2011 |
20110255444 | POWER SAVINGS THROUGH COOPERATIVE OPERATION OF MULTIRADIO DEVICES - Proxy discovery for mobile networks having cooperative multiradio devices is provided through short range discovery and assistance from the network. In some aspects, a dedicated message is sent in response to a request from the client. The dedicated message includes a proxy list. The client uses the proxy list to discover those proxies on the list. Other aspects provide for the proxy list to be included in broadcast messages from the network. Thus, clients receive the broadcast messages and extract the proxy list for discovery purposes. Other aspects provide for the client to detect all of the wireless devices in the area and send a list to the network. The network responds with a sub-list of those proxies that are available to the client. In each such aspect, when the client discovers the available proxies, it transmits a list of the proxy ID of the discovered proxies to the network. | 10-20-2011 |
20110255692 | POWER SAVINGS THROUGH COOPERATIVE OPERATION OF MULTIRADIO DEVICES - Trust establishment in short range protocol pairing between client and proxy devices includes a first aspect in which application level security is used to encrypt all packets transmitted between the client and proxy. An application-based security derives a public key from the General Bootstrapping Architecture (GBA) and used that public key to generate an encryption key in an AES encryption algorithm. A second aspect provides for out of band security to be used to establish short range protocol pairing. In this second aspect, the client and proxy exchange identification information over a third party network that is out of band to the short range protocol. With this identification information exchanged out of band, the client and proxy may establish pairing in the short range protocol. | 10-20-2011 |
20110256891 | POWER SAVINGS THROUGH COOPERATIVE OPERATION OF MULTIRADIO DEVICES - Page monitoring in a proxy relationship is optimized through creation of a new page occasion (PO) or paging frame (PF). The new PO/PF includes pages for each client-proxy relationship. Once the new PO/PF is communicated to the proxy, the proxy monitors for the pages of each client by monitoring a single PO/PF. Depending on the embodiment implemented, the network will either continue to also transmit pages during original PO or cease such transmission. On detection of a failed link between the proxy and client, the client may begin to monitor the original pages in such networks, or will begin monitoring using the new PO/PF until the network notifies the client that the state has changed. | 10-20-2011 |
20110263258 | ACTIVE MACRO-FEMTO HAND-IN WITH HELP FROM OUT-OF-BAND PROXY - Systems, methods, devices, and computer program products are described for supporting macrocell-to-femtocell hand-ins of active macro communications for mobile access terminals. A femto-proxy system is provided including a femtocell and an out-of-band (OOB) proxy. While the femtocell may be addressed by the macro network according to a potentially non-unique identifier (e.g., its PN offset), the OOB proxy is addressable according to a unique OOB identifier (e.g., a Bluetooth device address, BD_ADDR). When the mobile access terminal is in proximity to the femto-proxy system, it detects the OOB proxy and communicates the unique OOB identifier to the core network via the macro network (e.g., as part of a measurement report). The OOB identifier is mapped (e.g., in the core network) to the femtocell, allowing the core network to uniquely identify the appropriate target femtocell for active hand-in. | 10-27-2011 |
20120046025 | PROXIMITY AGENT BASED OUT OF BAND COMMUNICATION FOR FEMTOCELL OPERATION - Out of band (OOB) communication facilitates femtocell operation. One or more proximity agent provides out of band communication with nodes (e.g., mobile client devices) to provide assistance in or otherwise facilitate femtocell discovery, reselection, and/or interference mitigation. Out of band communication techniques provide for low power discovery, association, and communication as compared to corresponding femtocell or cellular network communication techniques. An OOB proximity agent is provided in association with a femtocell to provide transmit power level control with respect to the femtocell. In operation, if a client device searches for and finds an OOB proximity agent, it will find a femtocell, thereby avoiding a need to aggressively search for femtocells. | 02-23-2012 |
20120072751 | POWER CONSERVATION IN WIRELESS CLIENT TERMINALS AND SYSTEM LATENCY REDUCTION USING A PROXY DEVICE - A scheme is provided for conserving power in client terminals and/or reducing latency in wireless systems by using a proxy device. The client terminal may have a primary communication interface for communications with an access node and a secondary communication interface to communicate with the proxy device. The client terminal may indicate to the access node a short cycle rate for monitoring its signaling/control channel(s). The client terminal may the power off its primary communication interface without informing the access node. Prior to powering off its primary communication interface, the client terminal may assign the proxy device to act as its proxy and monitor the signaling/control channel with the access node. The proxy device monitors the signaling/control channel(s) according to the indicated short cycle rate. Upon detection of a message for the client terminal, the proxy device forwards the message to the client terminal via a secondary communication interface. | 03-22-2012 |
20120120858 | DATA RESUME INDICATOR FOR MOBILE DEVICE POWER CONSERVATION - A novel power conservation scheme is provided for conserving power in a wireless client terminal with an established communication session. While in a connected mode, the client terminal may receive data for the communication session via a data channel from an access point. During periods of inactivity over the data channel, the client terminal may switch to a lowered power mode, where the client terminal discontinuously monitors a control channel and does not monitor the data channel. The access point is informed of the operating mode of the client terminal. If a data resume indicator is received over the control channel, the client terminal switches back to the connected mode and resumes the communication session by receiving additional data over the data channel. | 05-17-2012 |
20120122511 | POWER CONSERVATION IN WIRELESS ACCESS TERMINALS USING INTEGRATED PROXY FUNCTION - A power conservation scheme is provided for conserving power in an access terminal that includes a dedicated proxy circuit, a receiver/transmitter chain, and/or a baseband processor. The baseband processor is adapted to determine when a wireless communication link with an access network has been inactive for at least a threshold amount of time. If such inactivity is ascertained, the baseband processor sends a proxy request to the proxy circuit. Upon receiving such proxy request, the proxy circuit monitors a data, control, and/or paging channel on behalf of the access terminal while the baseband processor is powered down. If a signal is received for the access terminal over the monitored channel, then a wake-up signal is sent to the baseband processor to cause it to power up and monitor a data channel. Upon receiving a response from the baseband processor, the proxy circuit may stop operating as a proxy. | 05-17-2012 |
20120182965 | FEMTOCELL BEACON INTERFERENCE MITIGATION WITH OUT-OF-BAND LINKS - Systems, methods, devices, and computer program products are described for mitigating macrocell interference during femtocell discovery in a wireless communications system. In one example, a mobile device may be camped on a macrocell. A femtocell transmits out-of-band (OOB) discovery signals to, or receives OOB band discovery signals from, the mobile device to facilitate presence detection. The femtocell may also be configured to use various techniques to transmit in-band beacon bursts (e.g., low or high power beacon bursts) to the mobile device in the macrocell frequency range to trigger the mobile device to perform an inter-frequency scan for cell reselection. The femtocell may transmit communications signals to the mobile device in a femtocell frequency range (different from the macrocell frequency range) after the mobile device has discovered and selected the femtocell. | 07-19-2012 |
Patent application number | Description | Published |
20090030602 | System and method for reducing the amount of repetitive data sent by a server to a client for vehicle navigation - A system and method for reducing the amount of repetitive data sent by a server to a client for vehicle navigation. The system includes a computer-based vehicle unit located in a vehicle, a gateway configured to wirelessly send and receive trip information to and from the vehicle unit, and a computer-based server in communication with the gateway over a network. The vehicle unit wirelessly receives signals from a computer-based server that includes the desired navigation information in packet form. The vehicle unit includes a user interface component that presents the received navigation information and records user requests. The server processes the requests, generates a trip plan according to the navigation information and sends the generated trip plan back to the vehicle unit via a gateway when a request has been completed. | 01-29-2009 |
20100223005 | SYSTEM AND METHOD FOR REDUCING THE AMOUNT OF REPETITIVE DATA SENT BY A SERVER TO A CLIENT FOR VEHICLE NAVIGATION - A system and method for reducing the amount of repetitive data sent by a server to a client for vehicle navigation. The system includes a computer-based vehicle unit located in a vehicle, a gateway configured to wirelessly send and receive trip information to and from the vehicle unit, and a computer-based server in communication with the gateway over a network. The vehicle unit wirelessly receives signals from a computer-based server that includes the desired navigation information in packet form. The vehicle unit includes a user interface component that presents the received navigation information and records user requests. The server processes the requests, generates a trip plan according to the navigation information and sends the generated trip plan back to the vehicle unit via a gateway when a request has been completed. | 09-02-2010 |
20110093189 | SYSTEM AND METHOD FOR REDUCING THE AMOUNT OF REPETITIVE DATA SENT BY A SERVER TO A CLIENT FOR VEHICLE NAVIGATION - A system and method for reducing the amount of repetitive data sent by a server to a client for vehicle navigation. The system includes a computer-based vehicle unit located in a vehicle, a gateway configured to wirelessly send and receive trip information to and from the vehicle unit, and a computer-based server in communication with the gateway over a network. The vehicle unit wirelessly receives signals from a computer-based server that includes the desired navigation information in packet form. The vehicle unit includes a user interface component that presents the received navigation information and records user requests. The server processes the requests, generates a trip plan according to the navigation information and sends the generated trip plan back to the vehicle unit via a gateway when a request has been completed. | 04-21-2011 |
20130219010 | INTERNET PROTOCOL CONNECTIVITY OVER A SERVICE-ORIENTED ARCHITECTURE BUS - Methods, systems, and devices are disclosed for implementing Internet Protocol (IP) connectivity over a service-oriented architecture (SOA) bus implemented by a peer-to-peer network. At a first device, a first IP service is advertised over the SOA bus, and a second IP service advertised by a second device over the SOA bus is discovered. The first device may transmit at least a first IP packet to the second device by remotely invoking the second IP service of the second device over the SOA bus. The first device may receive at least a second IP packet from the second device over the SOA bus through an invocation of the first IP service by the second device. | 08-22-2013 |
Patent application number | Description | Published |
20090181168 | SOLID PRECURSOR SUBLIMATOR - An apparatus and method for holding a solid precursor in a sublimator such that the solid precursor can be vaporized for saturating a carrier gas. The apparatus may include alternating disks or shelves that form inner and outer passages, as well as spaces between the disks for fluidicly coupling the passages to create a winding, tortuous fluid flow path through the sublimator for optimizing solid vapor saturation. The method may include directing a carrier gas into a sublimation chamber, around the first shelf in the outer passage, over the first shelf in the space, around the second shelf in the inner passage, and back out of the sublimation chamber. | 07-16-2009 |
20110126705 | Process For Decreasing Or Eliminating Unwanted Hydrocarbon And Oxygenate Products Caused By Fisher Tropsch Synthesis Reactions In A Syngas Treatment Unit - The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a material selected from the group consisting of chromium containing alloys and carbon steel for heating up gas streams having a carbon monoxide partial pressure greater than one bar obtained from a front end purification unit/cold box unit. | 06-02-2011 |
20110127469 | Process For Decreasing Or Eliminating Unwanted Hydrocarbon And Oxygenate Products Caused By Fisher Tropsch Synthesis Reactions In A Syngas Treatment Unit - The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a material selected from the group consisting of chromium containing alloys and carbon steel for heating up gas streams having a carbon monoxide partial pressure of less than or equal to one bar and obtained from a front end purification unit/cold box unit. | 06-02-2011 |
20110207836 | PROCESS FOR DECREASING OR ELIMINATING UNWANTED HYDROCARBON AND OXYGENATE PRODUCTS CAUSED BY FISHER TROPSCH SYNTHESIS REACTIONS IN A SYNGAS TREATMENT UNIT - The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a metal material selected from the group consisting of iron, nickel, cobalt, carbon steel or stainless steel and having deposited on the metal surfaces that will come in contact with the coldbox overhead gas stream an inert coating selected from the group consisting of silicon based materials, zinc based materials, tin based materials, chromium based materials, polymers, ceramics and mixtures thereof for heating up gas streams having a mixture of hydrogen and carbon monoxide and obtained from a front end purification unit/cold box unit. | 08-25-2011 |
20120118011 | Process For The Production Of Hydrogen And Carbon Dioxide - The present invention provides a method to more efficiently recover hydrogen and carbon dioxide as well as a design for carbon dioxide capture from syngas that allows for the simultaneous production of medium to high amounts of hydrogen and the capture of at least 90% of the carbon dioxide in the syngas as a part of the production of hydrogen in a hydrogen generation plant. Through the use of a combination of hydrogen selective membranes and carbon dioxide selective membranes together with a carbon dioxide separation unit it is possible to increase recovery of hydrogen and carbon dioxide and improved process efficiency of the hydrogen generation plant. | 05-17-2012 |
20120121497 | Process For Recovering Hydrogen And Carbon Dioxide - The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream ( | 05-17-2012 |
20120145000 | Drying Process For Flue Gas Treatment - An apparatus and method for drying a moist gas is provided. The apparatus includes a revolving desiccant rotor with at least an adsorption sector and a regeneration chamber; the regeneration chamber comprising at least a first dry gas sector, a hot regeneration sector, and a second dry gas sector, and optionally a cold regeneration sector. The method includes at least an adsorption sector and a regeneration chamber; the regeneration chamber comprising at least a first dry gas sector, a hot regeneration sector, and a second dry gas sector, and optionally a cold regeneration sector. This method includes the steps of; contacting a moist gas stream with the desiccant in the adsorption sector, thereby producing a dry gas stream; contacting a first dry gas stream with the desiccant in the first dry gas sector, thereby producing a first wet gas stream; contacting a hot partially wet gas stream with the desiccant in the hot regeneration sector, thereby producing a warm wet gas stream; contacting a dry regeneration gas stream with the desiccant in the second dry gas sector, thereby producing a wet regeneration gas stream, and contacting a regeneration purge gas stream with the desiccant in the cold regeneration sector, thereby producing a warm purge gas stream. | 06-14-2012 |
20120291481 | Process For Recovering Hydrogen And Carbon Dioxide - The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream utilizing a carbon dioxide separation unit and two membrane separation units. The present invention further provides a process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 80% of the carbon dioxide in the syngas stream. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation unit to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and a hydrogen membrane separation unit are utilized. | 11-22-2012 |
20120291482 | Process For Recovering Hydrogen And Carbon Dioxide - The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream utilizing a carbon dioxide separation unit and two membrane separation units. The present invention further provides a process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 80% of the carbon dioxide in the syngas stream. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation unit to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and a hydrogen membrane separation unit are utilized. | 11-22-2012 |
20120291483 | Process For Recovering Hydrogen And Carbon Dioxide - The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream utilizing a carbon dioxide separation unit and two membrane separation units. The present invention further provides a process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 80% of the carbon dioxide in the syngas stream. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation unit to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and a hydrogen membrane separation unit are utilized. | 11-22-2012 |
20120291484 | Process For The Production Of Hydrogen And Carbon Dioxide - This present invention provides a method to more efficiently recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 75%, and most preferably at least 90% of the carbon dioxide. The present invention further provides the design for capture of at least 80%, carbon dioxide from syngas that allows for the simultaneous production of medium to high amounts of hydrogen in the syngas as a part of the production of hydrogen in a hydrogen generation plant. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation units to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and two hydrogen membrane separation units are utilized. | 11-22-2012 |
20120291485 | Process For The Production Of Hydrogen And Carbon Dioxide - This present invention provides a method to more efficiently recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 75%, and most preferably at least 90% of the carbon dioxide. The present invention further provides the design for capture of at least 80%, carbon dioxide from syngas that allows for the simultaneous production of medium to high amounts of hydrogen in the syngas as a part of the production of hydrogen in a hydrogen generation plant. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation units to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and two hydrogen membrane separation units are utilized. | 11-22-2012 |
20120292574 | Process For The Production Of Hydrogen And Carbon Dioxide - This present invention provides a method to more efficiently recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 75%, and most preferably at least 90% of the carbon dioxide. The present invention further provides the design for capture of at least 80%, carbon dioxide from syngas that allows for the simultaneous production of medium to high amounts of hydrogen in the syngas as a part of the production of hydrogen in a hydrogen generation plant. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation units to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and two hydrogen membrane separation units are utilized. | 11-22-2012 |
20140167336 | INTEGRATION OF OXYGEN TRANSPORT MEMBRANE WITH COAL BASED DRI PROCESS - A process for the integration of oxygen transport membrane with a coal based DRI process is provided. The process includes introducing a heated, compressed air stream into an oxygen transport membrane separator, thereby producing a permeate stream and a retentate stream, introducing at least a portion of the retentate stream into a fired heater along with a combustion air stream, and introducing at least a portion of the permeate stream into a DRI shaft furnace. | 06-19-2014 |
20140170061 | STAGED MEMBRANE PROCESS FOR HIGH PRESSURE HYDROGEN PRODUCTION - “A hydrogen purification process is provided. This process includes separating hydrogen from a hydrogen containing stream in at least two sequential palladium membrane purification zones, wherein each purification zone has a permeate side, wherein the permeate side pressure of purification zones are not the same.” | 06-19-2014 |