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1. 发明授权

US07042854B2 Method and apparatus for acquiring a synchronization signal 有权
公开(公告)号：US07042854B2
公开(公告)日：2006-05-09
申请号：US09768726
申请日：2001-01-24
申请人： Bassel Beidas , Olga Ritterbush , Stanley Kay , Yezdi Antia , Bala Subramaniam
发明人： Bassel Beidas , Olga Ritterbush , Stanley Kay , Yezdi Antia , Bala Subramaniam
IPC分类号： H04B7/212
CPC分类号： H04J3/0611 , H04B7/2125 , H04L7/0004
摘要： A method and system for acquiring a time division multiplexed synchronization signal in a satellite communication system is provided. The signal is provided as a series of frames with beacon signals time division multiplexed into at least one time slot of each frame. The beacon signal in each frame comprises a unique word sequence, which is the same in each frame, and a portion of a PN sequence. The entire PN sequence is distributed into a plurality of frames forming a superframe. Initially, the power level of the incoming signal is determined by locating the maximum power received in half time slot intervals. Next a series of frames are correlated against the expected unique word, each at one of a plurality of possible frequencies. The frequency generating the maximum correlation with the unique word is selected. The frequency is fine tuned by comparing the actual arrival time of the unique word in each frame with the estimated arrival time based on the current frequency, and adjusting the frequency accordingly. Also, the start of the superframe is located by correlating the PN sequence portion of each beacon signal against a known PN sequence until a match is found. Once the frequency offset is reduced below a threshold value, and the start of the PN sequence of the incoming signal is located, acquisition is completed.

2. 发明授权

US07012937B2 Method and apparatus for tracking a synchronization signal 有权
公开(公告)号：US07012937B2
公开(公告)日：2006-03-14
申请号：US09768728
申请日：2001-01-24
申请人： Bassel Beidas , Olga Ritterbush , Stanley Kay , Yezdi Antia , Bala Subramaniam
发明人： Bassel Beidas , Olga Ritterbush , Stanley Kay , Yezdi Antia , Bala Subramaniam
IPC分类号： H04J3/06
CPC分类号： H04J3/0611 , H04B7/2125 , H04J3/0605 , H04L7/0004 , H04L7/043 , H04L7/10
摘要： A method and system for tracking a time division multiplexed synchronization signal in a satellite communication system is provided. The signal is provided as a series of frames with beacon signals time division multiplexed into at least one time slot of each frame. The beacon signal in each frame comprises a unique word sequence, which is the same in each frame, and a portion of a PN sequence. The entire PN sequence is distributed into a plurality of frames forming a superframe. Frequency variations of the incoming signal are tracked at the satellite terminal by correlating the PN sequence of the incoming signal against early and late locally generated versions of the PN sequence in a discriminate circuit. The output of the discriminate is provided to a delay locked loop circuit of at least third order. The output of the loop is used to adjust the frequency of the VCO, which clocks the A/D converter operating on the incoming signal. The product of the PN sequence of the incoming signal and an on-time locally generated version of the PN sequence is provided to an FFT circuit. The satellite terminal determines if it is locked onto the incoming signal based on the output of the FFT. If the satellite terminal is not locked, the terminal returns to an acquisition mode.

3. 发明授权

US10819469B2 High speed interleaver/deinterleaver device supporting line rate, and method thereof 有权
公开(公告)号：US10819469B2
公开(公告)日：2020-10-27
申请号：US16577624
申请日：2019-09-20
申请人： Sri Bhat , Bala Subramaniam , Yanlai Liu
发明人： Sri Bhat , Bala Subramaniam , Yanlai Liu
IPC分类号： H04L1/00 , G06F12/06 , G11C7/10 , G11C7/18 , H03M13/27 , H03M13/00 , H04L27/20 , H03M13/29
摘要： A deinterleaver device, a method for deinterleaving, an interleaver device, and a method for interleaving are disclosed. The method for deinterleaving includes: providing a memory and a stream count for a frame; virtually dividing the memory into equal sections, wherein a section count equals the stream count; calculating a write address for a sample of the samples based on a location of the sample in the frame and a correspondence of the location to one of the sections; receiving the sample; and writing the received sample to the write address, wherein the calculating and the write address corresponds to a correct deinterleaving location in one of the sections for the sample.

4. 发明授权

US10193657B2 Filtering code blocks to maintain high throughput thru a forward error correction decoder 有权
公开(公告)号：US10193657B2
公开(公告)日：2019-01-29
申请号：US15392103
申请日：2016-12-28
申请人： Bala Subramaniam , Alexei Duhovich
发明人： Bala Subramaniam , Alexei Duhovich
IPC分类号： H04L1/00 , H04L12/26 , H04L1/20 , H03M13/35
摘要： A system and method for filtering code blocks to maintain high throughput thru a Forward Error Correcting (FEC) decoder is disclosed. The method includes: monitoring a Signal-to-Noise Ratio (SNR) for an incoming link; selecting a rank table including a rank, Modulation and Coding Rate (MODCOD), and a minimum SNR; determining a threshold MODCOD range from the rank table based on the SNR; demodulating an incoming frame; identifying, in the incoming frame, the code blocks and an associated MODCOD for each of the code blocks; selecting a code block from the code blocks when the respective MODCOD for the code block is in the rank table and within the threshold MODCOD range; and decoding the selected code block with the associated MODCOD.

5. 发明授权

US09238608B2 Spray process for selective oxidation 有权
标题翻译：用于选择性氧化的喷涂工艺
公开(公告)号：US09238608B2
公开(公告)日：2016-01-19
申请号：US13258159
申请日：2010-03-23
申请人： Bala Subramaniam , Daryle H. Busch , Fenghul Niu
发明人： Bala Subramaniam , Daryle H. Busch , Fenghul Niu
IPC分类号： C07C51/265 , C07C51/255 , B01J4/00 , B01J10/00
CPC分类号： C07C51/255 , B01J4/002 , B01J10/007 , B01J2219/00006 , B01J2219/00063 , B01J2219/00065 , B01J2219/00162 , C07C51/265 , C07C63/00
摘要： Oxidation process can include: introducing small droplets of liquid reaction mixture having oxidizable reactant, catalyst, and solvent into a reaction zone containing oxygen and diluent gas; and oxidizing the reactant with the oxygen at a suitable reaction temperature and a suitable reaction pressure to produce an oxidized product. The liquid reaction mixture can have an aromatic feedstock having an oxidizable substituent as the oxidizable reactant. The oxidized product can include an aromatic compound having at least one carboxylic acid. For example, the aromatic feedstock can include a benzene ring having at least one oxidizable alkyl substituent, furan hetero-ring having at least one oxidizable alkyl substituent, a naphthalene poly-ring having at least one oxidizable alkyl substituent, derivatives thereof, and mixtures thereof.
摘要翻译：氧化过程可以包括：将具有可氧化反应物，催化剂和溶剂的小液滴的液体反应混合物引入含有氧气和稀释气体的反应区; 并在合适的反应温度和合适的反应压力下用氧氧化反应物以产生氧化产物。液体反应混合物可具有具有可氧化取代基的芳族原料作为可氧化反应物。氧化产物可以包括具有至少一个羧酸的芳族化合物。例如，芳族原料可以包括具有至少一个可氧化烷基取代基的苯环，具有至少一个可氧化烷基取代基的呋喃异环，具有至少一个可氧化烷基取代基的萘多环，其衍生物及其混合物。

6. 发明申请

US20140343305A1 PROCESS FOR PRODUCING BOTH BIOBASED SUCCINIC ACID AND 2,5-FURANDICARBOXYLIC ACID 审中-公开
标题翻译：生产双酚化酸和2,5-呋喃糖基酸的方法
公开(公告)号：US20140343305A1
公开(公告)日：2014-11-20
申请号：US14239822
申请日：2012-08-28
申请人： Bala Subramaniam , Xiaobin Zuo , Daryle H. Busch , Padmesh Venkitasubramaniam
发明人： Bala Subramaniam , Xiaobin Zuo , Daryle H. Busch , Padmesh Venkitasubramaniam
IPC分类号： C07D307/68 , C07C51/245
CPC分类号： C07D307/68 , C07C51/245 , C07D307/46 , C07C55/10
摘要： A process is provided for carrying out an oxidation on a feed including levulinic acid and/or a levulinic acid oxidation precursor to succinic acid, one or more furanic oxidation precursors of 2,5-furandicarboxylic acid and a catalytically effective combination of cobalt, manganese, and bromide components for catalyzing the oxidation of the levulinic acid component and of the one or more furanic oxidation precursors to produce both succinic acid and 2,5-furandicarboxylic acid products, which process comprises supplying the feed to a reactor vessel, supplying an oxidant, reacting the levulinic acid component and the one or more furanic oxidation precursors with the oxidant to produce both succinic acid and 2,5-furandicarboxylic acid (FDCA) and then recovering the succinic acid and FDCA products. A crude dehydration product from the dehydration of fructose, glucose or both, including 5-hydroxymethylfurfural, can be directly oxidized by the process to produce 2,5-furandicarboxylic acid and succinic acid.
摘要翻译：提供了一种方法，用于在包含乙酰丙酸和/或乙酰丙酸氧化前体的进料上进行氧化，所述前体包含琥珀酸，一种或多种2,5-呋喃二羧酸的呋喃氧化前体和催化有效的钴，锰，以及用于催化乙酰丙酸组分和一种或多种呋喃氧化前体的氧化以产生琥珀酸和2,5-呋喃二羧酸产物的溴化物组分，该方法包括将进料供应到反应器容器中，供应氧化剂，使乙酰丙酸组分和一种或多种呋喃氧化前体与氧化剂反应以产生琥珀酸和2,5-呋喃二羧酸（FDCA），然后回收琥珀酸和FDCA产物。由脱水果糖，葡萄糖或两者（包括5-羟甲基糠醛）的粗脱水产物可直接氧化，生成2,5-呋喃二羧酸和琥珀酸。

7. 发明授权

US08415511B2 Polyol hydrogenolysis by in-situ generated hydrogen 有权
标题翻译：多元醇氢解由原位产生的氢气
公开(公告)号：US08415511B2
公开(公告)日：2013-04-09
申请号：US12796245
申请日：2010-06-08
申请人： Raghunath V. Chaudhari , Debdut S. Roy , Bala Subramaniam
发明人： Raghunath V. Chaudhari , Debdut S. Roy , Bala Subramaniam
IPC分类号： C07C29/60 , B01J23/42 , B01J23/46 , B01J31/02
CPC分类号： B01J23/462 , B01J21/04 , B01J21/18 , B01J23/6567 , B01J35/0006 , C07C29/60 , C07C31/205
摘要： A catalyst composition/system can include: a platinum catalyst metal (Pt) and/or rhenium catalyst metal (Re) on a first support; and a ruthenium catalyst metal (Ru) and/or rhenium catalyst metal (Re) on a second support or a platinum catalyst metal (Pt) and a ruthenium catalyst metal (Ru) and/or a rhenium catalyst metal (Re) on the same support. The Pt:Ru, Re:Pt and/or Re:Ru weight ratio can be between about 1:4 and about 4:1. The support can be alumina, carbon, silica, a zeolite, TiO2, ZrO2 or another suitable material. The first and second support can be on the same support structure or on different support structures. In one option, the first and second supports can be positioned such that the Pt and/or Re are capable of catalyzing a dehydrogenation and/or reforming reaction that produces hydrogen and the Ru and/or Re are capable of catalyzing a hydrogenolysis reaction.
摘要翻译：催化剂组合物/体系可以包括：在第一载体上的铂催化剂金属（Pt）和/或铼催化剂金属（Re）; 以及在第二载体上的铂催化剂金属（Pt）和钌催化剂金属（Ru）和/或铼催化剂金属（Re）上的钌催化剂金属（Ru）和/或铼催化剂金属（Re）支持。 Pt：Ru，Re：Pt和/或Re：Ru重量比可以在约1:4至约4:1之间。载体可以是氧化铝，碳，二氧化硅，沸石，TiO 2，ZrO 2或其它合适的材料。第一和第二支撑件可以在相同的支撑结构上或不同的支撑结构上。在一个选择中，第一和第二载体可以被定位成使得Pt和/或Re能够催化产生氢的脱氢和/或重整反应，并且Ru和/或Re能够催化氢解反应。

8. 发明授权

US08268048B2 Oxygen binding of nanoparticulate metal complexes 有权
标题翻译：纳米颗粒金属络合物的氧结合
公开(公告)号：US08268048B2
公开(公告)日：2012-09-18
申请号：US12578907
申请日：2009-10-14
申请人： Bala Subramaniam , Andrew S. Borovik , Chad A. Johnson
发明人： Bala Subramaniam , Andrew S. Borovik , Chad A. Johnson
IPC分类号： B01D53/04
CPC分类号： B01D53/02 , B01D2253/20 , B01D2257/104 , B01D2259/40 , B01D2259/40086 , B01D2259/40088 , B01J20/223 , B01J20/28007 , B01J20/3295 , B82Y30/00
摘要： Solid nanoparticulate transition metal complexes of Co(II) salen exhibit reversible oxygen absorption in a near stoichiometric manner. In contrast, no measurable oxygen binding was observed with unprocessed Co(II) salen.
摘要翻译： Co（II）salen的固体纳米颗粒过渡金属络合物以近化学计量的方式表现出可逆的氧吸收。相比之下，未处理的Co（II）salen没有观察到可测量的氧结合。

9. 发明授权

US07744923B2 Method for precipitation of small medicament particles into use containers 有权
标题翻译：将小药物颗粒沉淀到使用容器中的方法
公开(公告)号：US07744923B2
公开(公告)日：2010-06-29
申请号：US11870554
申请日：2007-10-11
申请人： Roger A. Rajewski , Bala Subramaniam , Fenghui Niu
发明人： Roger A. Rajewski , Bala Subramaniam , Fenghui Niu
IPC分类号： A61K9/14
CPC分类号： A61K9/1688 , B01J2/02 , B01J2/04 , B01J2/18
摘要： Commercially feasible methods for lyophobic precipitation of liquid-dispersed or dissolved material (e.g., medicaments) are provided wherein a plurality of individual, open containers (22) each containing a quantity (84) of a solution or dispersion are treated within a common pressurizable chamber (12). In this process, desired near-supercritical or supercritical temperature and pressure conditions are established for a selected antisolvent gas such as carbon dioxide, and an ultrasonic device (14) is actuated to generate high energy ultrasonic waves in the chamber (12). This leads to intense mixing of the antisolvent with the liquid solution or dispersion within the containers (22), with consequent solvent removal and material precipitation.
摘要翻译：提供了用于液体分散或溶解的材料（例如药物）的疏液沉淀的商业上可行的方法，其中每个含有（84）溶液或分散体的多个单独的开放容器（22）在共同的可加压室（12）。在这个过程中，为所选择的反溶剂气体例如二氧化碳建立了所需的近临界或超临界温度和压力条件，并且致动超声波装置（14）以在腔室（12）中产生高能超声波。这导致反溶剂与容器（22）内的液体溶液或分散体的强烈混合，随后进行溶剂去除和材料沉淀。

10. 发明申请

US20100089236A1 Oxygen Binding of Nanoparticulate Metal Complexes 有权
标题翻译：纳米微晶金属配合物的氧结合
公开(公告)号：US20100089236A1
公开(公告)日：2010-04-15
申请号：US12578907
申请日：2009-10-14
申请人： Bala Subramaniam , Andrew S. Borovik , Chad A. Johnson
发明人： Bala Subramaniam , Andrew S. Borovik , Chad A. Johnson
IPC分类号： C07F15/06 , B01D53/14
CPC分类号： B01D53/02 , B01D2253/20 , B01D2257/104 , B01D2259/40 , B01D2259/40086 , B01D2259/40088 , B01J20/223 , B01J20/28007 , B01J20/3295 , B82Y30/00
摘要： Solid nanoparticulate transition metal complexes of Co(II) salen exhibit reversible oxygen absorption in a near stoichiometric manner. In contrast, no measurable oxygen binding was observed with unprocessed Co(II) salen.
摘要翻译： Co（II）salen的固体纳米颗粒过渡金属络合物以近化学计量的方式表现出可逆的氧吸收。相比之下，未处理的Co（II）salen没有观察到可测量的氧结合。

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