Abstract: Techniques for processing, storing, and using vectoring coefficients in a wireline communication system are disclosed. A wireline device selects victim-disturber specific parameters corresponding to a pair of digital subscriber line (DSL) lines and a subset of tones used to communicate data over the pair of DSL lines and downsamples, based at least in part on a downsampling parameter of the victim-disturber specific parameters, a set of vectoring coefficients. Each set of vectoring coefficients is quantized, and then a set of change values for each set of downsampled and quantized vectoring coefficients is compressed. The set of change values represent a difference between the downsampled and quantized vectoring coefficients across the subset of tones. The wireline device uses the compressed sets of change values to perform vectoring over the DSL lines.

Abstract: Methods, systems, and devices are described for wired communication. In one aspect, a method includes selecting a gain scalar based at least in part on a constellation point distance associated with a constellation mapper for a line and a tone. The method also includes applying the gain scalar to a tone data output signal of a vector processor.

Abstract: Methods, systems, and devices are described for wired communication. A first distribution point uses sets of modems to communicate with a second distribution point over a crosstalk link to exchange information and coordinate the use of multiple sets of frequency bands. In some cases, the first distribution point may share a cable binder with the second distribution point and detect crosstalk on the subscriber lines in the cable binder. Based at least in part on the crosstalk detected by the first distribution point, the first and second distribution points may communicate over a crosstalk link between sets of lines in the binder. The distribution points may use one or more sets of predefined tones within the multiple sets of frequency bands to exchange messages, where the messages may include synchronization information, operating parameters, or control and data information.

Abstract: Methods, systems, and devices are described for wired communication. In one aspect, a distribution point may use a redundant number of digital subscriber line (DSL) lines that share a same cable binder to cancel crosstalk. For example a first distribution point may use a redundant number of lines, which may be virtualized lines, to cancel interference between lines controlled by the first distribution point and lines controlled by a second distribution point. In some cases, a distribution point may share precoding and cancelling coefficients with another distribution point over a cloud network or other service to enable vectoring without sharing transmitted data between the two distribution points. That is, the first distribution point may receive information related to crosstalk between sets of CPEs without receiving data transmitted by a separate distribution point sharing the same cable binder, and use the crosstalk related information to cancel crosstalk.

Abstract: Methods, systems, and devices are described for wired communication. In one aspect, a method relates to an approach to determine a coefficient based at least in part on a weighted average of multiple estimates of a coefficient from known (e.g., stored) coefficients. The weighted average approach may improve coefficient determination. For example, a weighted average interpolation/extrapolation approach is used to determine vectoring coefficients from known vectoring coefficients in a vectored DSL system. Such an approach may provide a significant improvement in the SNR performance of the system, for example, as compared to coefficients obtained by linear interpolation. The weighted average may be of a linear interpolation, a forward extrapolation and a backward extrapolation of the particular coefficient being determined. As such, linear interpolation, forward extrapolation and backward extrapolation may be leveraged to improve accuracy of the determined coefficient.

Abstract: Residual FEXT resulting from intended and/or inherent partial cancellation of crosstalk in vectored DSL systems impairs upstream power back-off (UPBO) as traditionally implemented. By considering and taking into account the effects of residual crosstalk on vectored DSL system performance and operation, improved data rates and/or other vectored DSL system performance are realized through the use of UPBO parameters generated for a given residual FEXT environment.

Abstract: Methods, systems, and devices are described for wired communication. In one aspect, a method includes selecting a gain scalar based at least in part on a constellation point distance associated with a constellation mapper for a line and a tone. The method also includes applying the gain scalar to a tone data output signal of a vector processor.

Abstract: The present invention relates to a process for the preparation of polymorphs of doripenem.

Abstract: An improved catalytic process for the production of pyridine carboxylic acid amides, by catalytic hydration reaction of pyridine nitriles with solid heterogeneous catalyst wherein the process involve effective utilization and recycling of the catalytic components, and reactants.

Abstract: Residual FEXT resulting from intended and/or inherent partial cancellation of crosstalk in vectored DSL systems impairs upstream power back-off (UPBO) as traditionally implemented. By considering and taking into account the effects of residual crosstalk on vectored DSL system performance and operation, improved data rates and/or other vectored DSL system performance are realized through the use of UPBO parameters generated for a given residual FEXT environment.

Abstract: The present invention relates to a process for the preparation of carbapenem compound of Formula (I), wherein P1 is hydrogen or a carboxyl protecting group, P3 is hydrogen or a hydroxyl protecting group, R1 is C1-3 alkyl, and A is selected from a group consisting of a) Formula (II), b) Formula (III), c) Formula (IV), d) Formula (V), e) Formula (VI), f) Formula (VII), wherein P2 is hydrogen or an amino protecting group, R2 and R3 may be same or different and are hydrogen, C1-5 alkyl, optionally substituted aryl, or optionally substituted heteroaryl, and X1 is O or S, or its stereoisomers, or salts thereof.

Abstract: An improved catalytic process for the production of pyridine carboxylic acid amides, by catalytic hydration reaction of pyridine nitriles with solid heterogeneous catalyst wherein the process involve effective utilization and recycling of the catalytic components, and reactants.

Abstract: Disclosed herein cost effective and ecofriendly large scale process for producing pyridine carboxylic acid with high purity and yield at industrial scale.

Abstract: A telecommunication receiver provided according to the present invention is implemented to receive a first signal containing information and noise on a first set of sensors and a second signal containing only noise on a second set of sensors. Receiver then decodes the information using first signal and second signal. In one embodiment, a bonded DSL receiver with k signals sensors is implemented with additional s number of noise only sensors to receive only noise. Accordingly, joint demodulation is performed using signals received on k signals sensors and s noise only sensors. The noise sensor is implemented in common mode.

Abstract: Disclosed herein cost effective and ecofriendly large scale process for producing pyridine carboxylic acid with high purity and yield at industrial scale.

Abstract: Residual FEXT resulting from intended and/or inherent partial cancellation of crosstalk in vectored DSL systems impairs upstream power back-off (UPBO) as traditionally implemented. By considering and taking into account the effects of residual crosstalk on vectored DSL system performance and operation, improved data rates and/or other vectored DSL system performance are realized through the use of UPBO parameters generated for a given residual FEXT environment.

Abstract: The present invention is an improved high efficiency internal combustion engine (IHEICE) which results in higher efficiency due to its design, or respective relation of its parts. In the IHEICE, the energy fuel produced after combustion is harnessed and exploited to its highest potential when the engine starts exploiting the power after extended Top Down Center (ETDC). The main improvement in the IHEICE is the fitting and arrangement of the piston connecting rod and the crank; that is, the arrangement of the piston with respect to the crank, with the internal fitting design being the same. In the traditional arrangement, a problem is created in exploiting power from 60 degrees and beyond because a displacement (gap) is created inside the head resulting from the downward movement of the piston (60 degree movement of the crank). To fill this gap, the connecting rod, with a timer/cam and wheels, is used.

Abstract: A process recovers of pyridine and/or its derivatives from their aqueous mass and/or manufacturing reaction mass by liquid-liquid extraction employing an alkyl acetate. The process further involves effective recovering and recycling of solvents from the aqueous phase and other waste obtained during the process.

Abstract: The present invention relates to a process for the preparation of carbapenem compound of Formula (I), wherein P1 is hydrogen or a carboxyl protecting group, P3 is hydrogen or a hydroxyl protecting group, R1 is C1-3 alkyl, and A is selected from a group consisting of a) Formula (II), b) Formula (III), c) Formula (IV), d) Formula (V), e) Formula (VI), f) Formula (VII), wherein P2 is hydrogen or an amino protecting group, R2 and R3 may be same or different and are hydrogen, C1-5 alkyl, optionally substituted aryl, or optionally substituted heteroaryl, and X1 is O or S, or its stereoisomers, or salts thereof.

Abstract: The present invention relates to a process for the preparation of pantoprazol sodium sesquihydrate of formula (I) and pantoprazole sodium.