Patent application number | Description | Published |
20130058352 | METHOD AND DEVICE FOR FORWARDING DATA PACKETS - The method for forwarding data packets in position based routing of data from a source node (S) to at least one destination node (D) of a mesh network ( | 03-07-2013 |
20130182566 | DEVICE AND METHOD FOR LOAD BALANCING FOR DATA PACKET TRANSMISSIONS IN WIRELESS NETWORKS - For load balancing in a large-scale wireless mesh network, a device, a system and a method are provided for controlling data packet transmissions in the wireless mesh network, wherein answers to more than one received data packet are aggregated in one answer-batch. | 07-18-2013 |
20140115666 | SECURE PROTOCOL EXECUTION IN A NETWORK - For secure configuration of network nodes from a backend with low connectivity requirements and workload at the backend and reduced communication overhead, a system, a control unit for a segment controller and a method for secure protocol execution in a network are provided, wherein protocol information is provided to a segment controller ( | 04-24-2014 |
20150078350 | DUTY-CYCLE CONTROL IN WIRELESS NETWORK - A wireless network has a duty-cycle limitation, which defines a total transmission time budget and an average transmission time. A device ( | 03-19-2015 |
20150350987 | DELEGATED CHANNEL SWITCHING FOR MESH-TYPE NETWORKS - The invention relates to a channel switching strategy and corresponding protocol for a mesh network which comprises a segment controller, SC, ( | 12-03-2015 |
Patent application number | Description | Published |
20080285248 | High-speed router with backplane using tuned-impedance thru-holes and vias - A high-speed router backplane is disclosed. The router backplane uses differential signal pairs on multiple signal layers, each sandwiched between a pair of digital ground layers. To reduce routing complexity, at least some of the differential signal pairs route through a via pair, somewhere along their path, to a different signal layer. Specific via designs reduce differential signal distortion due to the via pair, allowing the backplane to operate reliably at differential signal rates in excess of 3 Gigabits per second. In particular, each via passes through nonfunctional conductive pads on selected digital ground plane layers, the pads separated from the remainder of its ground plane layer by a clearance, thereby modifying the impedance of the via and reducing reflections from the stubs created by the via. | 11-20-2008 |
20090045889 | High-speed router with backplane using muli-diameter drilled thru-holes and vias - A high-speed router backplane is disclosed. The router backplane uses differential signal pairs on multiple signal layers, each sandwiched between a pair of digital ground layers. Thru-holes are used to connect the differential signal pairs to external components. To reduce routing complexity, at least some of the differential signal pairs route through a via pair, somewhere along their path, to a different signal layer. At least some of the thru-holes and vias are drilled to reduce an electrically conductive stub length portion of the hole. The drilled portion of a hole includes a transition from a first profile to a second profile to reduce radio frequency reflections from the end of the drilled hole. | 02-19-2009 |
20090107710 | Differential trace profile for printed circult boards - Circuit boards and methods for their manufacture are disclosed. The circuit boards carry high-speed signals using conductors formed to include lengthwise channels. The channels increase the surface area of the conductors, and therefore enhance the ability of the conductors to carry high-speed signals. In at least some embodiments, a discontinuity also exists between the dielectric constant within the channels and just outside the channels, which is believed to reduce signal loss into the dielectric material. | 04-30-2009 |
20110088842 | DIFFERENTIAL TRACE PROFILE FOR PRINTED CIRCUIT BOARDS - Circuit boards and methods for their manufacture are disclosed. The circuit boards carry high-speed signals using conductors formed to include lengthwise channels. The channels increase the surface area of the conductors, and therefore enhance the ability of the conductors to carry high-speed signals. In at least some embodiments, a discontinuity also exists between the dielectric constant within the channels and just outside the channels, which is believed to reduce signal loss into the dielectric material. | 04-21-2011 |
20110228779 | DISTRIBUTED PACKET SWITCH HAVING A WIRELESS CONTROL PLANE - A packet network device such as a network switch includes a number of functional cards or chassis modules at least some of which are connected to both an electrical backplane and a wireless backplane. The electrical backplane provides data plane signal paths and the wireless backplane provides control plane signal paths. | 09-22-2011 |
20120033760 | EXTENDED NON-RETURN-TO-ZERO SERIAL CHANNEL SIGNALING - Methods and apparatus for serial channel operation are disclosed. An N+1-level signaling scheme is used to transmit N staggered but overlapping NRZ sub-sequences concurrently on a serial channel. Each sequence has a bit rate R and an essential bandwidth of R Hz. The combined bit rate of the channel is N×R, but due to a lack of correlation between the sub-sequences, the essential bandwidth remains approximately R Hz. The signaling scheme also contains redundancy that allows some errors to be detected and/or corrected. Other embodiments are also described and claimed. | 02-09-2012 |
20120144665 | IMPEDANCE TUNING FOR CIRCUIT BOARD SIGNAL PATH SURFACE PAD STRUCTURES - The characteristic impedance of a surface pad is manipulated by reticulating the pad and filling the spaces with a dielectric material, providing an inductive element in the coupling of the surface pad to an underlying ground pad of a ground plane, or a combination of these approaches. In appropriate embodiments, acceptable signal trace routing paths will exist in an embedded signal layer under the ground plane and crossing under the surface pad. Other embodiments are also described and claimed. | 06-14-2012 |
20120147990 | EXTENDED NON-RETURN-TO-ZERO SERIAL CHANNEL SIGNALING - Methods and apparatus for serial channel operation are disclosed. An N+1-level signaling scheme is used to transmit N staggered but overlapping NRZ sub-sequences concurrently on a serial channel. Each sequence has a bit rate R and an essential bandwidth of R Hz. The combined bit rate of the channel is N×R, but due to a lack of correlation between the sub-sequences, the essential bandwidth remains approximately R Hz. The signaling scheme also contains redundancy that allows some errors to be detected and/or corrected. Other embodiments are also described and claimed. | 06-14-2012 |
20120167386 | HIGH-SPEED ROUTER WITH BACKPLANE USING MULTI-DIAMETER DRILLED THRU-HOLES AND VIAS - A high-speed router backplane is disclosed. The router backplane uses differential signal pairs on multiple signal layers, each sandwiched between a pair of digital ground layers. Thru-holes are used to connect the differential signal pairs to external components. To reduce routing complexity, at least some of the differential signal pairs route through a via pair, somewhere along their path, to a different signal layer. At least some of the thru-holes and vias are drilled to reduce an electrically conductive stub length portion of the hole. The drilled portion of a hole includes a transition from a first profile to a second profile to reduce radio frequency reflections from the end of the drilled hole. | 07-05-2012 |
20150156863 | METHOD OF FABRICATING A CIRCUIT BOARD - Circuit boards and methods for their manufacture are disclosed. The circuit boards carry high-speed signals using conductors formed to include lengthwise channels. The channels increase the surface area of the conductors, and therefore enhance the ability of the conductors to carry high-speed signals. In at least some embodiments, a discontinuity also exists between the dielectric constant within the channels and just outside the channels, which is believed to reduce signal loss into the dielectric material. | 06-04-2015 |
Patent application number | Description | Published |
20090062585 | PREPARATION OF A POROUS COMPOSITE MATERIAL BASED ON EU-1 ZEOLITE AND ITS IMPLEMENTATION IN THE ISOMERIZATION OF C8 AROMATICS - A preparation process is described for a porous composite material formed from an amorphous core based on at least one silicon oxide on which crystals of EU-1 zeolite are dispersed, said process comprising 1) the impregnation of a solid comprising a silicon oxide and an aluminium oxide with an aqueous solution comprising a hexamethonium cation, 2) the hydrothermal treatment, implemented in an autoclave of volume V (ml) under steam and at a temperature T comprised between 120 and 220° C., of said solid from stage 1), the quantity of water introduced beforehand into said autoclave being strictly greater than a volumetric quantity equal to V*[23.48*10 | 03-05-2009 |
20100178241 | NOVEL PROCESS FOR PREPARING EU-1 ZEOLITE - The invention concerns a process for preparing an EU-1 zeolite having a XO | 07-15-2010 |
20100179361 | Zeolitic Catalysts, Their Process for Preparation and their Applications - The invention describes a porous composite material that comprises a porous substrate based on a refractory inorganic oxide in which said substrate has a zeolite crystal content that is less than 25% by mass, whereby said crystals are dispersed homogeneously in the pores of said substrate, and the distribution coefficient that is measured by Castaing microprobe is between 0.75 and 1.25, and in which the total pore volume of said substrate represents at least 40% of the initial total pore volume of the substrate, and the mean diameter of the pores represents at least 50% of the mean diameter of the pores of the initial substrate, its process for preparation and its use as catalyst in the hydrocarbon feedstock conversion reactions. | 07-15-2010 |
Patent application number | Description | Published |
20140267724 | RECORDING SYSTEM AND METHOD FOR VEHICLE - A recording system may include a camera configured to record images including a first image and a storage device configured to store the images. The recording system may include a controller configured to identify at least one vertical line contained in the first image and determine whether the first image is indicative of a probable event area based on the identification of the at least one vertical line. The controller may be configured to command the camera to record the images at a first quality if the first image is indicative of a probable event area. The controller may also be configured to command the camera to record images at a second quality if the first image is not indicative of a probable event area. The images recorded at the second quality occupy less memory in the storage device than the images recorded at the first quality. | 09-18-2014 |
20150021444 | INTEGRATED TIME-STAMPED EVENT RECORDER - An event recorder includes an outer case, and a first memory module including a first amount of data storage capacity contained within the outer case. The first memory module is configured to receive and store multiple types of data including at least two of: video data; audio data; locomotive data indicative of one or more locomotive operating parameters, locomotive control signals, and locomotive performance characteristics; engine operating parameter data; exhaust characteristics data; electrical data; and positive train control data. A controller contained within the outer case may be configured to associate a universal time stamp with each of the multiple types of data stored in the first memory module. An inner, crash-hardened case may be contained within the outer case, containing a second memory module including a second amount of data storage capacity that is smaller than the first amount. The controller may be further configured to periodically transfer a portion of the time-stamped data stored in the first memory module to the second memory module. | 01-22-2015 |
20160091396 | Method and System for Data Redundancy Storage - A computer-implemented method includes a first controller configured to receive and record operational data associated with operation of a locomotive, process, via a processor, the operational data, and determine, using the processor, a data storage plan for the operational data. The data storage plan can dynamically change based on the operational data. The system may be further configured to store the operational data with a second controller associated with a second locomotive according to the data storage plan. | 03-31-2016 |