 Patent Application Title |
Patent App Num. |
Date |
| Single-carrier block transmission with trellis coded modulation (tcm), multi-level coded modulation (mlcm) and bit-interleaved mlcm (bimlcm) | 20100272203 | 20101028 |
| The system (900), transmitter (700), receiver (800.a 800.b), and method of the present invention provide a technique to code data bits into symbols using TCM, MLCM or BIMLCM before the symbols are placed in an SCBT block. Generally, TCM, MLCM, and BIMLCM do not have good performance over the frequency selective channels. However, since the frequency domain equalization of SCBT will flatten the channel, the use of TCM, MLCM and BIMLCM can provide significant gain. Furthermore, since some of the bits are left uncoded, the speed requirements on the encoder and decoder can be relaxed. This feature is especially important for the very high data rate systems.
... |
| Specifying an access hint for prefetching partial cache block data in a cache hierarchy | 20100268886 | 20101021 |
| A system and method for specifying an access hint for prefetching only a subsection of cache block data, for more efficient system interconnect usage by the processor core. A processing unit receives a data cache block touch (DCBT) instruction containing an access hint and identifying a specific size portion of data to be prefetched. Both the access hint and a value corresponding to an amount of data to be prefetched are contained in separate subfields of the DCBT instruction. In response to detecting that the code point is set to a specific value, only the specific size of data identified in a sub-field of the DCBT and addressed in the DCBT instruction is prefetched into an entry in the lower level cache.
... |
| Specifying an access hint for prefetching limited use data in a cache hierarchy | 20100268885 | 20101021 |
| A system and method for specifying an access hint for prefetching limited use data. A processing unit receives a data cache block touch (DCBT) instruction having an access hint indicating to the processing unit that a program executing on the data processing system may soon access a cache block addressed within the DCBT instruction. The access hint is contained in a code point stored in a subfield of the DCBT instruction. In response to detecting that the code point is set to a specific value, the data addressed in the DCBT instruction is prefetched into an entry in the lower level cache. The entry may then be updated as a least recently used entry of a plurality of entries in the lower level cache. In response... |
| System and method for relaying signals in asynchronous cooperative network | 20100260240 | 20101014 |
| Relay nodes relay data from a source node (110) to a destination node (130) in an asynchronous cooperative wireless communication system. Each relay node (120) includes a serial-to-parallel partitioner (212), a row selector (214), a cyclic shifter (216) and an SCBT modulator (218). The serial-to-parallel partitioner partitions symbols corresponding to received information into parallel blocks. The row selector selects one row of a coding matrix for each of the parallel blocks and constructs symbol blocks corresponding to the parallel blocks based on the selected row. The cyclic shifter shifts a cyclic delay of each of the symbol blocks and generates shifted symbol blocks corresponding to the symbol blocks. The SCBT modulator pads a guard interval to each shifted symbol block to remove the effects of asynchronous... |
| Method and system to reduce papr in single carrier and scbt communications systems | 20100239038 | 20100923 |
| The system (800), transmitter (600), receiver (700), and method of the present invention provide a technique to reduce the Peak to Average Power Ratio (PAPR) for the single carrier and single carrier block transmission (SCBT) modulations, especially when non-symmetric constellations (e.g. BPSK) are used. The constellation used for the modulation of each symbol, is rotated by a phase. Only the constellation is rotated, and the mapping of the bits into each constellation may or may not be similar. Further, in alternative embodiments the modulated bits are either encoded or not encoded. In a further alternative embodiment, a Trellis Coded Modulation (TCM) is used. Because the phase rotation is known a priori, or can be determined from a priori known information, it can easily be corrected at... |
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| Method and system of single carrier block transmission with parallel encoding and decoding | 20100146363 | 20100610 |
| A Single Carrier Block Transmission (SCBT) system employs an inherently parallel approach to error correction processing. At the transmission system (200), an incoming data stream is split (210) into P parallel data streams, each having a data rate equal to a fraction of the incoming data stream's data rate. The parallel data streams are then each separately encoded (220) in P parallel encoding processes (beneficially, using P parallel encoders (222)). The P separately encoded data streams are then merged (330), interleaved (320), and mapped (310) into a single stream of encoded symbols, which are transmitted to the receiver using an arbitrary modulation (240) and transmission scheme. At the receiver (255), the received data stream is de-interleaved (350) and split into P encoded data streams, which are... |
| System and method to provide communication-based train control system capabilities | 20100131129 | 20100527 |
| A portable computer system and method of operating a vehicle using the portable computer system in a communication-based train control (CBTC) system territory is provided. The portable computer system includes a sensor and a transceiver that is communicatively coupled to the sensor and to the CBTC system, wherein the portable computer system configured to be removably coupled to the vehicle. The method includes verifying that the vehicle is operating with one of a non-operational CBTC computer system and a non-CBTC computer system, and removably coupling a portable computer system including at least one sensor and a transceiver that is communicatively coupled to the sensor to the vehicle such that the transceiver is coupled in communication with the CBTC system.
... |
| Anticollision control system for a vehicle | 20100090069 | 20100415 |
| An anti-collision control system for one or more vehicles fitted with an onboard automatic pilot (self-guiding) allowing for bi-directional movements on a single track under the control of a ground-based automated traffic control unit of the CBTC type. The system includes: a signaling control unit of the AWS type for controlling ground signals on a section of a single-direction circulation lane; a first default control means based on which the signaling control unit imposes a single-direction movement to the vehicle running on the section of a single-direction circulation lane in order to avoid any collision with another vehicle controlled solely by the signaling control unit of the AWS type, i.e. independently from the ground-based automated traffic control unit. A first advantage of the invention is that... |
| Fft spreading among selected ofdm sub-carriers | 20100061474 | 20100311 |
| An improved communications system for frequency-selective fading channels spreads the data-bearing modulation symbols across many OFDM sub-carriers using a discrete Fourier transform (FFT) at the transmitter, and despreads them using an inverse discrete Fourier transform (IFFT) at the receiver. An IFFT is included at the transmitter to form the OFDM symbols in the usual way, and a corresponding FFT is used at the receiver for the frequency-domain processing of the received signal. The difference is, the size of the FFT used for spreading at the transmitter is smaller than that of an IFFT used just after the FFT to create the OFDM symbols for transmission. This results in improved bit-error-rate, similar to single carrier block transmission (SCBT), while retaining the frequency domain benefits of conventional OFDM,... |
| Integrated learning management system and methods | 20100041008 | 20100218 |
| Integrated learning management is provided for a computer assisted learning system having an instructor led training component (ILT) and a computer based training (CBT) component. The CBT component has a plurality of training materials and a content management service (CMS) that (i) controls an interface between the ILT component and the CBT component. An integrated learning management system and method enforces a plurality of standards upon the ILT component and the CBT component, each said standard governing at least one of quality, uniformity and branding.
... |
| System and method for improved frequency/phase error tracking in high-speed high-frequency communication | 20100002757 | 20100107 |
| A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation. At a transmitter, cyclically orthogonal constant amplitude pilot signals are inserted at the beginning (or end) of a plurality of SCBT blocks of a block coded data stream. At a receiver, a phase rotation of the received data stream is determined to remove a residual frequency error or to estimate the phase noise.
... |
| Single-carrier block transmission with trellis coded modulation (tcm), multi-level coded modulation (mlcm) and bit-interleaved mlcm (bimlcm) | 20100272203 | 20101028 |
| The system (900), transmitter (700), receiver (800.a 800.b), and method of the present invention provide a technique to code data bits into symbols using TCM, MLCM or BIMLCM before the symbols are placed in an SCBT block. Generally, TCM, MLCM, and BIMLCM do not have good performance over the frequency selective channels. However, since the frequency domain equalization of SCBT will flatten the channel, the use of TCM, MLCM and BIMLCM can provide significant gain. Furthermore, since some of the bits are left uncoded, the speed requirements on the encoder and decoder can be relaxed. This feature is especially important for the very high data rate systems.
... |
| Specifying an access hint for prefetching partial cache block data in a cache hierarchy | 20100268886 | 20101021 |
| A system and method for specifying an access hint for prefetching only a subsection of cache block data, for more efficient system interconnect usage by the processor core. A processing unit receives a data cache block touch (DCBT) instruction containing an access hint and identifying a specific size portion of data to be prefetched. Both the access hint and a value corresponding to an amount of data to be prefetched are contained in separate subfields of the DCBT instruction. In response to detecting that the code point is set to a specific value, only the specific size of data identified in a sub-field of the DCBT and addressed in the DCBT instruction is prefetched into an entry in the lower level cache.
... |
Subscribe to updates on this page: CBT RSS |
| Specifying an access hint for prefetching limited use data in a cache hierarchy | 20100268885 | 20101021 |
| A system and method for specifying an access hint for prefetching limited use data. A processing unit receives a data cache block touch (DCBT) instruction having an access hint indicating to the processing unit that a program executing on the data processing system may soon access a cache block addressed within the DCBT instruction. The access hint is contained in a code point stored in a subfield of the DCBT instruction. In response to detecting that the code point is set to a specific value, the data addressed in the DCBT instruction is prefetched into an entry in the lower level cache. The entry may then be updated as a least recently used entry of a plurality of entries in the lower level cache. In response... |
| System and method for relaying signals in asynchronous cooperative network | 20100260240 | 20101014 |
| Relay nodes relay data from a source node (110) to a destination node (130) in an asynchronous cooperative wireless communication system. Each relay node (120) includes a serial-to-parallel partitioner (212), a row selector (214), a cyclic shifter (216) and an SCBT modulator (218). The serial-to-parallel partitioner partitions symbols corresponding to received information into parallel blocks. The row selector selects one row of a coding matrix for each of the parallel blocks and constructs symbol blocks corresponding to the parallel blocks based on the selected row. The cyclic shifter shifts a cyclic delay of each of the symbol blocks and generates shifted symbol blocks corresponding to the symbol blocks. The SCBT modulator pads a guard interval to each shifted symbol block to remove the effects of asynchronous... |
| Method and system to reduce papr in single carrier and scbt communications systems | 20100239038 | 20100923 |
| The system (800), transmitter (600), receiver (700), and method of the present invention provide a technique to reduce the Peak to Average Power Ratio (PAPR) for the single carrier and single carrier block transmission (SCBT) modulations, especially when non-symmetric constellations (e.g. BPSK) are used. The constellation used for the modulation of each symbol, is rotated by a phase. Only the constellation is rotated, and the mapping of the bits into each constellation may or may not be similar. Further, in alternative embodiments the modulated bits are either encoded or not encoded. In a further alternative embodiment, a Trellis Coded Modulation (TCM) is used. Because the phase rotation is known a priori, or can be determined from a priori known information, it can easily be corrected at... |
| Method and system of single carrier block transmission with parallel encoding and decoding | 20100146363 | 20100610 |
| A Single Carrier Block Transmission (SCBT) system employs an inherently parallel approach to error correction processing. At the transmission system (200), an incoming data stream is split (210) into P parallel data streams, each having a data rate equal to a fraction of the incoming data stream's data rate. The parallel data streams are then each separately encoded (220) in P parallel encoding processes (beneficially, using P parallel encoders (222)). The P separately encoded data streams are then merged (330), interleaved (320), and mapped (310) into a single stream of encoded symbols, which are transmitted to the receiver using an arbitrary modulation (240) and transmission scheme. At the receiver (255), the received data stream is de-interleaved (350) and split into P encoded data streams, which are... |
| System and method to provide communication-based train control system capabilities | 20100131129 | 20100527 |
| A portable computer system and method of operating a vehicle using the portable computer system in a communication-based train control (CBTC) system territory is provided. The portable computer system includes a sensor and a transceiver that is communicatively coupled to the sensor and to the CBTC system, wherein the portable computer system configured to be removably coupled to the vehicle. The method includes verifying that the vehicle is operating with one of a non-operational CBTC computer system and a non-CBTC computer system, and removably coupling a portable computer system including at least one sensor and a transceiver that is communicatively coupled to the sensor to the vehicle such that the transceiver is coupled in communication with the CBTC system.
... |
| Anticollision control system for a vehicle | 20100090069 | 20100415 |
| An anti-collision control system for one or more vehicles fitted with an onboard automatic pilot (self-guiding) allowing for bi-directional movements on a single track under the control of a ground-based automated traffic control unit of the CBTC type. The system includes: a signaling control unit of the AWS type for controlling ground signals on a section of a single-direction circulation lane; a first default control means based on which the signaling control unit imposes a single-direction movement to the vehicle running on the section of a single-direction circulation lane in order to avoid any collision with another vehicle controlled solely by the signaling control unit of the AWS type, i.e. independently from the ground-based automated traffic control unit. A first advantage of the invention is that... |
| Fft spreading among selected ofdm sub-carriers | 20100061474 | 20100311 |
| An improved communications system for frequency-selective fading channels spreads the data-bearing modulation symbols across many OFDM sub-carriers using a discrete Fourier transform (FFT) at the transmitter, and despreads them using an inverse discrete Fourier transform (IFFT) at the receiver. An IFFT is included at the transmitter to form the OFDM symbols in the usual way, and a corresponding FFT is used at the receiver for the frequency-domain processing of the received signal. The difference is, the size of the FFT used for spreading at the transmitter is smaller than that of an IFFT used just after the FFT to create the OFDM symbols for transmission. This results in improved bit-error-rate, similar to single carrier block transmission (SCBT), while retaining the frequency domain benefits of conventional OFDM,... |
| Integrated learning management system and methods | 20100041008 | 20100218 |
| Integrated learning management is provided for a computer assisted learning system having an instructor led training component (ILT) and a computer based training (CBT) component. The CBT component has a plurality of training materials and a content management service (CMS) that (i) controls an interface between the ILT component and the CBT component. An integrated learning management system and method enforces a plurality of standards upon the ILT component and the CBT component, each said standard governing at least one of quality, uniformity and branding.
... |
| System and method for improved frequency/phase error tracking in high-speed high-frequency communication | 20100002757 | 20100107 |
| A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation. At a transmitter, cyclically orthogonal constant amplitude pilot signals are inserted at the beginning (or end) of a plurality of SCBT blocks of a block coded data stream. At a receiver, a phase rotation of the received data stream is determined to remove a residual frequency error or to estimate the phase noise.
... |
| Compounding formulations for producing articles from guayule natural rubber | 20090054595 | 20090226 |
| The invention disclosed herein relates to a process for making elastomeric rubber articles, and in particular, the process of producing such articles from non-Hevea brazilensis rubber sources, such as Guayule (Parthenium argentatum) natural rubber that exhibits physical strength properties similar to or superior to that of Hevea brazilensis natural rubber latex. In one embodiment, the process comprises an accelerator composition at the pre-cure stage comprised of variable combinations of a dithiocarbamate, a thiazole, a guanidine, a thiuram, or a sulfenamide. The accelerator composition may be comprised of, but is not limited to, zinc diethyldithiocarbamate (ZDEC), t-butyl benzothiazosulfenamide (TBBS) and diphenyl guanidine (DPG); an accelerator composition comprised of zinc diethyldithiocarbamate (ZDEC), n-cyclohexyl benzothiazosulfenamide (CBTS) and diphenyl guanidine (DPG). The disclosed invention also includes the elastomeric articles made... |
| Low-pressure mercury discharge lamp and process for its preparation | 20080224591 | 20080918 |
| The invention relates to a low-pressure mercury discharge lamp comprising an envelope with an inner surface enclosing a discharge space in which a mercury comprising filling is accommodated, at least one electrode for generating ultraviolet radiation in said discharge space, and a phosphor layer formed over said inner surface to convert said ultraviolet radiation into light of the green wavelength region, wherein said phosphor layer consists of a water-dispersable blend of a yellow-green phosphor and a blue-green phosphor. The blend consists preferably of the CBT and BAM-green phosphors.
... |
| Method and apparatus for multi-antenna signal transmission in rf long-distance wireless bs | 20070160012 | 20070712 |
| The invention relates to a method for transmitting a plurality of antenna signals in a wireless Base Transceiver Station (BTS) using Remote Radio Head (RRH) technology and the corresponding system. The method includes the steps of: transmitting signals over the transmit channel using Synchronous Digital Hierarchy (SDH)/Optical Transmission Network (OTN), multiplexing the plurality of antenna signals adopting the manners of time division multiplex or GFP frame-level multiplex; forming the multiplexed antenna signal stream and in-band control signaling stream into Generic Framing Procedure (GFP) frame; or forming the plurality of antenna signals and the plurality of respective control signals on the in-band control signaling channel into a plurality of respective GFP frames in parallel; and further mapping the GFP frames to STM-N/OTM-n frames, therefore multiplexing the plurality... |
| A method and system of continual temperature monitoring | 20070027403 | 20070201 |
| A method and system of Continual Temperature Monitoring of a patient pre-surgical, intra-surgical, and post-surgical by multiple, wireless, temperature sensors that transmit low-power radio frequencies to a monitor capable of receiving signals of temperature data, wherein the monitor interfaces with conventional PC platforms having specifically designed software, and the multiple wireless sensors are of two types: 1.) a capsule shaped sensor which can be ingested or inserted rectally which transmits core body temperature (CBT); 2.) a dermal patch which transmits external body temperature, and the PC software allows the user to set upper and lower limits for each sensor transmitter placed in or on a patient which will activate a notification method selected by the user if these limits are exceeded or subceeded, and the PC... |
| Enhanced computer-based training program/content editing portal | 20060286534 | 20061221 |
| A system for computer-based training (“CBT”) includes a content editing portal, operable on a computer system, for generating content using a markup language, the portal providing a graphical user interface (“GUI”) to give a user access to the markup language date in a structured form-based editing environment. The portal supports: making changes to the content; creating an index of the content; associating a procedure with a page of content; adding audio to the content; and adding titles to the content. An acronyms module supports the creation of a list of acronyms; and a testing module which supports the creation of tests. Content is stored using templates, and the GUI supports reassigning the content from a first template to a second template by selection of a template... |
| Use of butylene terephthalate for producing thermoplastic dental prostheses | 20060241204 | 20061026 |
| The use of cyclic oligomeric butylene terephthalate (CBT™) for producing thermoplastic dental prostheses, or for producing starting materials for thermoplastic dental prostheses are described, in addition to starting materials containing CBT™ for producing thermoplastic dental prostheses, and a method for producing thermoplastic dental prostheses.
... |
