公开(公告)号：US10790902B2

公开(公告)日：2020-09-29

申请号：US16548829

申请日：2019-08-22

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Venkatesh G. Mutalik

IPC: H04J14/00 ,  H04B10/2575 ,  H04B10/27 ,  H04J14/02 ,  H04N7/22 ,  H04B10/25 ,  H04B10/2507 ,  H04B10/29 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/075 ,  H04B10/272 ,  H04B10/58 ,  H04B10/079

Abstract: Systems and methods for optical modulation index calibration in a CATV network.

公开(公告)号：US10749475B2

公开(公告)日：2020-08-18

申请号：US16158881

申请日：2018-10-12

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Zoran Maricevic

IPC: H03F1/02 ,  H04B3/10 ,  H03F1/32 ,  H04L25/06 ,  H04B7/155 ,  H03F3/24 ,  H03F3/189 ,  H03F3/20 ,  H04B10/2575 ,  H04N21/61 ,  G02F1/01 ,  G05F1/563 ,  G05F1/565 ,  H03G3/00 ,  H04N21/443 ,  H04N21/63 ,  H04B1/04

Abstract: Methods and systems for modulating an amplifier power supply to efficiently attain amplified RF output power with much lower power dissipation than existing amplifiers. In a cable television (CATV) network, a processor receives a signal to be amplified by an amplifier at a location remote from the processor. A bias point of the amplifier may be variably modulated based on peaks of an input signal to reduce amplifier dissipation.

公开(公告)号：US10218318B2

公开(公告)日：2019-02-26

申请号：US15655392

申请日：2017-07-20

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Zhijian Sun

IPC: H03F1/07 ,  H03F1/32 ,  H04L25/02 ,  H04L25/49 ,  H04B1/04

Abstract: Systems and methods that cancel distortion in the amplified outputs of a node by equalizing the distortion characteristics amplifiers in the node, so as to improve the effectiveness of predistortion applied to a downstream signal amplified by the node.

公开(公告)号：US09923639B2

公开(公告)日：2018-03-20

申请号：US15195933

申请日：2016-06-28

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Venkatesh G. Mutalik

IPC: H04B10/27 ,  H04B10/572 ,  H04B10/80 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04B10/572 ,  H04B10/27 ,  H04B10/80 ,  H04B10/807 ,  H04J14/0238 ,  H04J14/0242 ,  H04J14/0267 ,  H04Q11/0005 ,  H04Q2011/0015

Abstract: Powering an active/splitter and providing information to ONUs to cause adjustments to ONU operating wavelengths. An ONU may identify the port of a splitter to which the ONU is connected in order to make wavelength adjustments. Various techniques enable the ONU to identify from which port the ONU is receiving signals, such as a splitter that splits signals to ONUs in a cable network and signals to one or more ONUs the port to which it is connected. The splitter may lack electrical power and may perform the signal function by harvesting optical power from optical power provided to the splitter. In this manner, an active splitter may behave passively with respect to powering components in the absence of electrical power.

公开(公告)号：US20170207852A1

公开(公告)日：2017-07-20

申请号：US15475441

申请日：2017-03-31

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Venkatesh G. Mutalik

IPC: H04B10/2575 ,  H04J14/02 ,  H04B10/564 ,  H04B10/079 ,  H04B10/25 ,  H04B10/516

CPC classification number: H04B10/25751 ,  H04B10/075 ,  H04B10/07955 ,  H04B10/2503 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/27 ,  H04B10/272 ,  H04B10/29 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/58 ,  H04J14/02 ,  H04J14/0221 ,  H04J14/0232 ,  H04J14/0235 ,  H04J14/0249 ,  H04J14/025 ,  H04J14/0278 ,  H04N7/22

Abstract: Systems and methods for optical modulation index calibration in a CATV network.

公开(公告)号：US20170195756A1

公开(公告)日：2017-07-06

申请号：US15393914

申请日：2016-12-29

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Venkatesh G. Mutalik

IPC: H04Q11/00 ,  H04B10/2507

CPC classification number: H04Q11/0005 ,  H04B10/2507 ,  H04B10/25751 ,  H04B10/272 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/00 ,  H04Q2011/0015 ,  H04Q2011/0037

Abstract: In an optical system having multiple cascaded splitter/combiners, a trunk port and/or a drop port is configured for at least one of the splitter/combiner units. Drop ports may be configured with an average gain control, and the trunk ports may be configured to have individual gain control to provide a more precise overall gain and to maintain adequate signal levels. Embodiments apply to evolving RFoG architectures designed to serve a large number of subscribers without suffering from OBI (Optical Beat Interference) by retransmitting an optical signal through cascading splitters/combiners.

公开(公告)号：US11070292B2

公开(公告)日：2021-07-20

申请号：US16725893

申请日：2019-12-23

Applicant: ARRIS Enterprises LLC

Inventor： Venkatesh G. Mutalik ,  John Ulm ,  Marcel F. Schemmann

IPC: H04B10/2575 ,  H04L12/28 ,  H04N7/22 ,  H04L5/14

Abstract: Systems and methods for achieving full duplex bidirectional transmission across coaxial cable in a hybrid fiber-coaxial cable TV network. Some preferred systems and method will attenuate reflections propagated within the coaxial cable. Other preferred systems may echo-cancel reflections propagated within the coaxial cable.

公开(公告)号：US10432310B2

公开(公告)日：2019-10-01

申请号：US15475441

申请日：2017-03-31

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Venkatesh G. Mutalik

IPC: H04J14/00 ,  H04B10/2575 ,  H04B10/27 ,  H04J14/02 ,  H04B10/2507 ,  H04B10/29 ,  H04B10/50 ,  H04B10/25 ,  H04B10/516 ,  H04B10/564 ,  H04B10/075 ,  H04B10/272 ,  H04B10/58 ,  H04N7/22 ,  H04B10/079

Abstract: Systems and methods for optical modulation index calibration in a CATV network.

公开(公告)号：US20180262821A9

公开(公告)日：2018-09-13

申请号：US15281036

申请日：2016-09-29

Applicant: ARRIS Enterprises LLC

Inventor： Venkatesh G. Mutalik ,  Marcel F. Schemmann

IPC: H04Q11/00 ,  H04J14/02 ,  H04B10/80 ,  H04B10/2575

Abstract: Implementing a laser into a system that uses a remote powered combiner or an aggregating combiner (AC) with one or more in-range contributing combiners may provide power to the downstream contributing combiners (CC). The power may be provided on the same fiber that downstream signals and the upstream signals traverse.

公开(公告)号：US20180183387A1

公开(公告)日：2018-06-28

申请号：US15387880

申请日：2016-12-22

Applicant: ARRIS Enterprises LLC

Inventor： Marcel F. Schemmann ,  Ido Leshem

IPC: H03F1/02 ,  H04N7/10 ,  H03M1/66 ,  H03F3/19 ,  H03F3/21 ,  H03F1/32

CPC classification number: H03F1/0205 ,  H03F1/0222 ,  H03F1/0266 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/68 ,  H03F2200/102 ,  H03F2200/165 ,  H03F2200/451 ,  H03F2200/63 ,  H03F2201/3215 ,  H03M1/66 ,  H04N7/102

Abstract: The disclosed system and method provide for a CATV power amplifier in which power dissipation may be reduced by dynamically adjusting the amplifier bias such that the bias is high only when high peak output signals need to be produced. By combining a bias control signal and an RF data signal into a single signal produced by a single DA converter, the disclosed examples require fewer DA converters and a need to synchronize DA converters to produce each of the signals individually is eliminated. A low frequency signal may be added to the RF band to find an optimum compromise between positive and negative peak excursions produced by the amplifier such that an overall reduction in bias may be achieved.