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1. 发明申请

US20130004173A1 OVERLAY SYSTEM WITH DIGITAL OPTICAL TRANSMITTER FOR DIGITIZED NARROWCAST SIGNALS 有权
标题翻译：带有数字光学发射器的数字化NARROWCAST信号覆盖系统
公开(公告)号：US20130004173A1
公开(公告)日：2013-01-03
申请号：US13175681
申请日：2011-07-01
申请人： Zoran Maricevic , Marcel F. Schemmann , Dean Painchaud , William P. Dawson , Zhijian Sun
发明人： Zoran Maricevic , Marcel F. Schemmann , Dean Painchaud , William P. Dawson , Zhijian Sun
IPC分类号： H04J14/00 , H04B10/06
CPC分类号： H04L27/34 , H04H20/69 , H04J14/0232 , H04J14/0246 , H04J14/0247 , H04J14/0282 , H04J14/0298
摘要： Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.
摘要翻译：提供了方法和装置以便以成本有效的方式修改现有的覆盖系统架构，以满足对窄幅服务的日益增长的需求，并且将现有覆盖系统定位以用于未来的进一步修改。本公开的改进的覆盖系统的实施方式在将窄带模拟信号QAM调制并上变频到RF频率之后重新数字化窄模拟信号，并用数字窄幅发射机替代模拟窄播发射机。在光纤节点中，接收到的窄信号被转换回模拟信号，并与模拟广播信号组合，以传输到服务组。

2. 发明授权

US09923751B2 Overlay system with digital optical transmitter for digitized narrowcast signals 有权
公开(公告)号：US09923751B2
公开(公告)日：2018-03-20
申请号：US13175681
申请日：2011-07-01
申请人： Zoran Maricevic , Marcel F. Schemmann , Dean Painchaud , William P. Dawson , Zhijian Sun
发明人： Zoran Maricevic , Marcel F. Schemmann , Dean Painchaud , William P. Dawson , Zhijian Sun
IPC分类号： H04B14/00 , H04L27/34 , H04J14/02 , H04H20/69
CPC分类号： H04L27/34 , H04H20/69 , H04J14/0232 , H04J14/0246 , H04J14/0247 , H04J14/0282 , H04J14/0298
摘要： Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.

3. 发明申请

US20120213515A1 SERVICE GROUP AGGREGATION 审中-公开
标题翻译：服务集团聚集
公开(公告)号：US20120213515A1
公开(公告)日：2012-08-23
申请号：US13030573
申请日：2011-02-18
申请人： Zoran Maricevic , Marcel F. Schemmann , Zhijian Sun , Dean Painchaud , Jeffrey L. Sauter , William P. Dawson
发明人： Zoran Maricevic , Marcel F. Schemmann , Zhijian Sun , Dean Painchaud , Jeffrey L. Sauter , William P. Dawson
IPC分类号： H04J14/00
CPC分类号： H04Q11/0067 , H04Q11/0071
摘要： Methods and systems for aggregating service groups are provided. A chain of fiber nodes in a DOCSIS system is formed to aggregate the service groups served by the fiber nodes to form a super-service group. Multiple channels of a multiplexed data stream are used to transmit the signals from the super-service group. By creating a chain of fiber nodes and using multiple channels to transmit the signals from the super-service group, a DOCSIS system can be more efficiently reconfigured to segment a super-service group once the system has become exhausted.
摘要翻译：提供了聚合服务组的方法和系统。形成DOCSIS系统中的光纤节点链，以聚合由光纤节点服务的服务组，以形成超服务组。使用复用数据流的多个信道来传输来自超级服务组的信号。通过创建光纤节点链并使用多个信道来传输来自超级服务组的信号，一旦系统耗尽，可以更有效地重新配置DOCSIS系统以分段超级服务组。

4. 发明授权

US08145068B2 Dual use of test point power monitor 有权
标题翻译：双重使用测试点功率监视器
公开(公告)号：US08145068B2
公开(公告)日：2012-03-27
申请号：US12406107
申请日：2009-03-17
申请人： Zoran Maricevic , Eric Cormier , Benedict J. Jackson , Jayesh Bhatt , Marcel F Schemmann , Zhijian Sun
发明人： Zoran Maricevic , Eric Cormier , Benedict J. Jackson , Jayesh Bhatt , Marcel F Schemmann , Zhijian Sun
IPC分类号： H04B10/04
CPC分类号： H03M1/0614 , H03M1/66
摘要： A channel alignment system in an optical communication network includes logic to sample power of a quadrature amplitude modulation (QAM) channel at a component downstream from a QAM modulator. The system determines if the sampled channel power has a sufficient level. The system signals power control logic of the QAM modulator to adjust a gain of the sampled channel.
摘要翻译：光通信网络中的信道对准系统包括在QAM调制器下游的分量处采样正交幅度调制（QAM）信道的功率的逻辑。系统确定采样信道功率是否具有足够的电平。该系统通过QAM调制器的功率控制逻辑来调整采样通道的增益。

5. 发明申请

US20090263141A1 DUAL USE OF TEST POINT POWER MONITOR 有权
标题翻译：测试点电力监控器的双重使用
公开(公告)号：US20090263141A1
公开(公告)日：2009-10-22
申请号：US12406107
申请日：2009-03-17
申请人： Zoran Maricevic , Eric Cormier , Benedict J. Jackson , Jayesh Bhatt , Marcel F. Schemmann , Zhijian Sun
发明人： Zoran Maricevic , Eric Cormier , Benedict J. Jackson , Jayesh Bhatt , Marcel F. Schemmann , Zhijian Sun
IPC分类号： H04B10/00 , H04L27/20
CPC分类号： H03M1/0614 , H03M1/66
摘要： A channel alignment system in an optical communication network includes logic to sample power of a quadrature amplitude modulation (QAM) channel at a component downstream from a QAM modulator. The system determines if the sampled channel power has a sufficient level. The system signals power control logic of the QAM modulator to adjust a gain of the sampled channel.
摘要翻译：光通信网络中的信道对准系统包括在QAM调制器下游的分量处采样正交幅度调制（QAM）信道的功率的逻辑。系统确定采样信道功率是否具有足够的电平。该系统通过QAM调制器的功率控制逻辑来调整采样通道的增益。

6. 发明申请

US20170302378A1 Burst Mode Node 审中-公开
公开(公告)号：US20170302378A1
公开(公告)日：2017-10-19
申请号：US15431113
申请日：2017-02-13
申请人： Venkatesh G. Mutalik , Marcel F. Schemmann , John Ulm , Zoran Maricevic
发明人： Venkatesh G. Mutalik , Marcel F. Schemmann , John Ulm , Zoran Maricevic
IPC分类号： H04B10/2575 , H04N5/38 , H04N7/22
CPC分类号： H04B10/25751 , H04H20/69 , H04H20/78 , H04L12/2856 , H04L12/2885 , H04N7/22 , H04Q11/0067
摘要： Systems and Methods for reducing distortion due to bursts of upstream transmission in an HFC CATV network. In some preferred systems, the functionality of an Optical Network Unit (ONU) may occur within a node or amplifier along a direction upstream from a subscriber's home.

7. 发明授权

US09479258B1 Electrical add/drop multiplexer with pass through port related applications 有权
标题翻译：具有通过端口相关应用的电气分插复用器
公开(公告)号：US09479258B1
公开(公告)日：2016-10-25
申请号：US12711928
申请日：2010-02-24
申请人： Peter Wolff , Zoran Maricevic , Ventatesh Mutalik , Marcel F Schemmann
发明人： Peter Wolff , Zoran Maricevic , Ventatesh Mutalik , Marcel F Schemmann
IPC分类号： H04B10/00 , H04B10/40
CPC分类号： H04B10/40 , H04J14/0204 , H04J14/0219
摘要： An upgradeable electrical add/drop multiplexer is provided that is capable of processing light at numerous wavelengths thereby eliminating the need to add an optical add/drop multiplexer to an existing electrical add/drop multiplexer to process new services provided at different wavelengths than the wavelengths for which the existing electrical add/drop multiplexer are designed. The electrical add/drop multiplexer may be used to process light transmitted over a passive optical network under an RFoG, EPON, and/or 10GPON standard or any combination thereof or may be upgraded for future standards.
摘要翻译：提供了一种可升级的电子分插复用器，能够处理多个波长的光，从而无需为现有的电子分插复用器添加光分插复用器，以处理提供的波长不同于波长现有的电气分插复用器被设计。电子分插复用器可以用于处理通过RFoG，EPON和/或10GPON标准或其任何组合在无源光网络上传输的光，或者可以升级以用于将来的标准。

8. 发明授权

US10211922B2 Burst mode node 有权
公开(公告)号：US10211922B2
公开(公告)日：2019-02-19
申请号：US15431113
申请日：2017-02-13
申请人： Venkatesh G. Mutalik , Marcel F. Schemmann , John Ulm , Zoran Maricevic
发明人： Venkatesh G. Mutalik , Marcel F. Schemmann , John Ulm , Zoran Maricevic
IPC分类号： H04B10/2575 , H04N7/22 , H04Q11/00 , H04L12/28 , H04H20/69 , H04H20/78
摘要： Systems and Methods for reducing distortion due to bursts of upstream transmission in an HFC CATV network. In some preferred systems, the functionality of an Optical Network Unit (ONU) may occur within a node or amplifier along a direction upstream from a subscriber's home.

9. 发明授权

US06788169B1 Amplifier composite triple beat (CTB) reduction by phase filtering 有权
公开(公告)号：US06788169B1
公开(公告)日：2004-09-07
申请号：US09474295
申请日：1999-12-29
申请人： Marcel F. Schemmann , Zoran Maricevic
发明人： Marcel F. Schemmann , Zoran Maricevic
IPC分类号： H03H707
CPC分类号： H04N7/17309 , H03F1/32 , H03F3/602 , H03F2200/168 , H03H7/19 , H04B3/146 , H04H20/78 , H04N7/102
摘要： In a broadband communication system there are multi-stage power amplifier systems for amplifying the power of radio-frequency (RF) communication signals. Each stage of the amplifier system results in composite triple beat (CTB) distortion, and if the phase of the CTB distortions are approximately the same (i.e. are in-phase), then the amplitudes of the distortions are added (i.e. “20 dB” rule). The amplifier system of the invention includes one or more phase filters positioned in series between the power amplifier stages. The phase filters are adapted to shift the phase of the communication signals, so that the phase of CTB distortions, resulting from the amplification of the communication signals in the amplifier stages between the phase filters, are substantially different (i.e. are out-of-phase). Thus, only the power of the CTB distortions are added (i.e. “10 dB” rule).

10. 发明授权

US07474150B2 Amplifier composite triple beat (CTB) reduction by phase filtering 有权
标题翻译：放大器复合三拍（CTB）减少相位滤波
公开(公告)号：US07474150B2
公开(公告)日：2009-01-06
申请号：US10847866
申请日：2004-05-19
申请人： Marcel F. Schemmann , Zoran Maricevic
发明人： Marcel F. Schemmann , Zoran Maricevic
IPC分类号： H03F1/26
CPC分类号： H04N7/17309 , H03F1/32 , H03F3/602 , H03F2200/168 , H03H7/19 , H04B3/146 , H04H20/78 , H04N7/102
摘要： In a broadband communication system there are multi-stage power amplifier systems for amplifying the power of radio-frequency (RF) communication signals. Each stage of the amplifier system results in composite triple beat (CTB) distortion, and if the phase of the CTB distortions are approximately the same (i.e. are in-phase), then the amplitudes of the distortions are added (i.e. “20 dB” rule). The amplifier system of the invention includes one or more phase filters positioned in series between the power amplifier stages. The phase filters are adapted to shift the phase of the communication signals, so that the phase of CTB distortions, resulting from the amplification of the communication signals in the amplifier stages between the phase filters, are substantially different (i.e. are out-of-phase). Thus, only the power of the CTB distortions are added (i.e. “10 dB” rule).
摘要翻译：在宽带通信系统中，存在用于放大射频（RF）通信信号的功率的多级功率放大器系统。放大器系统的每个阶段导致复合三拍（CTB）失真，并且如果CTB失真的相位大致相同（即同相），则增加失真的幅度（即“20 dB” 规则）。本发明的放大器系统包括串联在功率放大器级之间的一个或多个相位滤波器。相位滤波器适于移动通信信号的相位，使得由相位滤波器之间的放大器级中的通信信号的放大而导致的CTB失真的相位基本上不同（即是异相）。因此，仅增加CTB失真的功率（即“10dB”规则）。

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