公开(公告)号：US08969268B2

公开(公告)日：2015-03-03

申请号：US13421697

申请日：2012-03-15

Applicant: Chattterjee Alok Kumar ,  Tyagi Mange Ram ,  Ray Siddharth Sankar ,  Shekhar Indu ,  Bansal Ankushi

Inventor： Chattterjee Alok Kumar ,  Tyagi Mange Ram ,  Ray Siddharth Sankar ,  Shekhar Indu ,  Bansal Ankushi

IPC: C10M159/12 ,  C10M173/02 ,  C10M145/16 ,  C10M149/06

CPC classification number: C10M173/02 ,  C10M145/16 ,  C10M149/06 ,  C10M2209/086 ,  C10N2230/06 ,  C10M2209/062 ,  C10M2217/024

Abstract: The present invention deals with a process for the preparation of multifunctional additive for aqueous lubricants. These I multifunctional additive for aqueous lubricant comprises of co-polymer having vinyl group containing polyhydric alcohol along with monomer selected from aqueous soluble acrylate co-monomer in different mole fraction for addition polymerization to facilitate the sequencing of monomer in polymer chain. Thus the polymeric molecule has been designed for improving tribological properties i.e. low wear, low friction and EP property of aqueous lubricants.

Abstract translation: 本发明涉及制备用于水性润滑剂的多功能添加剂的方法。 用于水性润滑剂的这些I多功能添加剂包括具有含乙烯基的多元醇的共聚物以及选自不同摩尔分数的水溶性丙烯酸酯共聚单体的单体，用于加成聚合，以促进聚合物链中单体的测序。 因此，聚合物分子被设计用于改善摩擦学性质，即水性润滑剂的低磨损，低摩擦和EP性能。

公开(公告)号：US20120238482A1

公开(公告)日：2012-09-20

申请号：US13421697

申请日：2012-03-15

Applicant: Chattterjee Alok KUMAR ,  Tyagi Mange Ram ,  Ray Siddharth Sankar ,  Shekhar Indu ,  Bansal Ankushi

Inventor： Chattterjee Alok KUMAR ,  Tyagi Mange Ram ,  Ray Siddharth Sankar ,  Shekhar Indu ,  Bansal Ankushi

IPC: C10M145/08

CPC classification number: C10M173/02 ,  C10M145/16 ,  C10M149/06 ,  C10M2209/086 ,  C10N2230/06 ,  C10M2209/062 ,  C10M2217/024

Abstract: The present invention deals with a process for the preparation of multifunctional additive for aqueous lubricants. These I multifunctional additive for aqueous lubricant comprises of co-polymer having vinyl group containing polyhydric alcohol along with monomer selected from aqueous soluble acrylate co-monomer in different mole fraction for addition polymerization to facilitate the sequencing of monomer in polymer chain. Thus the polymeric molecule has been designed for improving tribological properties i.e. low wear, low friction and EP property of aqueous lubricants.

Abstract translation: 本发明涉及制备用于水性润滑剂的多功能添加剂的方法。 用于水性润滑剂的这些I多功能添加剂包括具有含乙烯基的多元醇的共聚物以及选自不同摩尔分数的水溶性丙烯酸酯共聚单体的单体，用于加成聚合，以促进聚合物链中单体的测序。 因此，聚合物分子被设计用于改善摩擦学性质，即水性润滑剂的低磨损，低摩擦和EP性能。

公开(公告)号：US20090245442A1

公开(公告)日：2009-10-01

申请号：US12404956

申请日：2009-03-16

Applicant: Ray Siddharth ,  Sundeep Rangan

Inventor： Ray Siddharth ,  Sundeep Rangan

IPC: H04B7/10

CPC classification number: H04B7/0617 ,  H04B7/0848 ,  H04L1/0001 ,  H04L1/20 ,  H04L25/0206 ,  H04L2025/03426

Abstract: Methods and apparatus for avoiding overflow and underflow conditions through the determination of appropriate scaling factors in signal estimation processing in a receiver are described. The receiver estimates transmitted symbols from one or more transmitter device antennas, while avoiding underflow and overflow conditions. A pilot based noise estimate and an estimated expected received signal power, corresponding to a transmit antenna, are used to generate an SNR corresponding to the transmit antenna. The generated SNR is used to determine, e.g., select from a fixed size set of predetermined scale factor values, a scale factor to be used for estimation processing associated with the transmit antenna. In some embodiments, the generated scaling factors are used by a fixed point processing linear least squares error estimation module. Scaling factor determination is performed at a rate which is slower than the rate at which symbols are received from a transmit antenna.

Abstract translation: 描述了通过在接收机中的信号估计处理中确定适当的缩放因子来避免溢出和下溢条件的方法和装置。 接收机估计来自一个或多个发射机设备天线的发送符号，同时避免下溢和溢出条件。 使用对应于发射天线的基于导频的噪声估计和估计的预期接收信号功率来产生对应于发射天线的SNR。 所生成的SNR用于确定例如从预定比例因子值的固定大小集合中选择要用于与发射天线相关联的估计处理的比例因子。 在一些实施例中，生成的缩放因子由固定点处理线性最小二乘误差估计模块使用。 缩放因子确定以比从发送天线接收符号的速率慢的速率执行。