公开(公告)号：US11909512B1

公开(公告)日：2024-02-20

申请号：US17690760

申请日：2022-03-09

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Zhensheng Jia ,  David Daniel Smith ,  Junwen Zhang ,  Luis Alberto Campos ,  Curtis D. Knittle

IPC: H04B10/50 ,  H04J14/00 ,  H01S5/40 ,  H04B10/80

CPC classification number: H04J14/002 ,  H01S5/4006 ,  H04B10/506 ,  H04B10/5053 ,  H04B10/80 ,  H04B10/505

Abstract: A coherent optical injection locking (COIL) apparatus generates multiple optical source outputs from a single optical source generated by a parent laser. The COIL apparatus includes a plurality of optical source generators each having a child laser, of lesser performance than the parent laser, that is injection locked to the single optical source. The optical source generators may have one or both of a shared configuration and a cascaded configuration that replicates the single optical source, or a single wavelength of the single optical source when it is a comb source.

公开(公告)号：US20190109760A1

公开(公告)日：2019-04-11

申请号：US16152472

申请日：2018-10-05

Applicant: Cable Television Laboratories, Inc.

Inventor： Jason W. Rupe ,  Curtis D. Knittle

IPC: H04L12/24

Abstract: Grafting segments of a network together to mitigate service disruptions associated with impairments, maintenance, etc., is contemplated. The grafting may include instantiating a wired and/or wireless graft to facilitate connecting an impaired portion of a network to an unimpaired portion, such as to reestablish services at the impaired portion via the graft to the unimpaired portion.

公开(公告)号：US20230209229A1

公开(公告)日：2023-06-29

申请号：US18176236

申请日：2023-02-28

Applicant: Cable Television Laboratories, Inc.

Inventor： Luis Alberto Campos ,  Zhensheng Jia ,  Nicolas Joel Metts ,  Curtis D. Knittle ,  Isaac Elliott ,  Ralph William Brown

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04Q11/0003 ,  H04Q2011/005 ,  H04Q2011/0043 ,  H04Q2011/0047 ,  H04Q2011/0039

Abstract: A communication network includes a first serving area, a second serving area, a network hub, one or more trunk optical cables, and a first bridging connection. The first serving area includes a first optical switch, a first optical node, and one or more first intra-serving-area (ISA) optical cables communicatively coupling the first optical node to the first optical switch. The second serving area includes a second optical switch, a second optical node, and one or more second ISA optical cables communicatively coupling the second optical node to the second optical switch. The one or more trunk optical cables communicatively couple the first and second optical nodes to the network hub, and the first bridging connection communicatively couples the one or more first ISA optical cables and the one or more second ISA optical cables.

公开(公告)号：US12155525B1

公开(公告)日：2024-11-26

申请号：US17648132

申请日：2022-01-16

Applicant: Cable Television Laboratories, Inc.

Inventor： Jason W. Rupe ,  Curtis D. Knittle

IPC: H04L41/0659 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/12

Abstract: Grafting segments of a network together to mitigate service disruptions associated with impairments, maintenance, etc., is contemplated. The grafting may include instantiating a wired and/or wireless graft to facilitate connecting an impaired portion of a network to an unimpaired portion, such as to reestablish services at the impaired portion via the graft to the unimpaired portion.

公开(公告)号：US11876556B1

公开(公告)日：2024-01-16

申请号：US17959015

申请日：2022-10-03

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Junwen Zhang ,  Zhensheng Jia ,  Curtis D. Knittle ,  Luis Alberto Campos

IPC: H04B10/079 ,  H04B10/40 ,  H04J14/02

CPC classification number: H04B10/0793 ,  H04B10/40 ,  H04J14/023 ,  H04J14/0223

Abstract: A method for implementing an out-of-band communication channel in a coherent optical access network includes steps (a)-(e). Step (a) includes separating a MAC-layer signal received from a media access control (MAC) layer into an initial communication-channel signal and an initial data-channel signal. Step (b) includes encoding, using a first signal-coding scheme within a transceiver of a coherent passive optical network (PON), the initial communication-channel signal into a communication-channel signal occupying a first frequency band. Step (c) includes encoding, using a second signal-coding scheme within the transceiver, the initial data-channel signal into a data-channel signal occupying a second frequency band not overlapping the first frequency band. Step (d) includes combining the communication-channel signal and the data-channel signal to yield an analog signal. Step (e) includes driving, with the analog signal, an optical modulator to modulate a coherent optical signal for output on a fiber optical path of the coherent PON.

公开(公告)号：US11539441B1

公开(公告)日：2022-12-27

申请号：US17219563

申请日：2021-03-31

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Mu Xu ,  Junwen Zhang ,  Haipeng Zhang ,  Zhensheng Jia ,  Luis Alberto Campos ,  Curtis D. Knittle

IPC: H04B10/516 ,  H04B10/2513

Abstract: A method for laser chirp precompensation includes modulating an amplitude of an optical signal, in response to an amplitude of one of (i) a chirp-compensated signal generated via distortion of an original modulated signal according to an inverse of a chirp-response function of a laser and (ii) a first signal derived from the chirp-compensated signal, to yield an amplitude-modulated optical signal. The method also includes modulating a phase of the amplitude-modulated optical signal in response to a phase of one of (i) the chirp-compensated signal and (ii) a second signal derived from the chirp-compensated signal to yield a chirp-compensated optical signal.

公开(公告)号：US11240099B2

公开(公告)日：2022-02-01

申请号：US16152472

申请日：2018-10-05

Applicant: Cable Television Laboratories, Inc.

Inventor： Jason W. Rupe ,  Curtis D. Knittle

IPC: H04L12/24 ,  H04L12/26

Abstract: Grafting segments of a network together to mitigate service disruptions associated with impairments, maintenance, etc., is contemplated. The grafting may include instantiating a wired and/or wireless graft to facilitate connecting an impaired portion of a network to an unimpaired portion, such as to reestablish services at the impaired portion via the graft to the unimpaired portion.

公开(公告)号：US11140062B2

公开(公告)日：2021-10-05

申请号：US16413434

申请日：2019-05-15

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Jason W. Rupe ,  Curtis D. Knittle ,  Jingjie Zhu ,  John Phillips

IPC: H04L12/26 ,  H04L12/28 ,  H04L29/14

Abstract: Methods, systems, and devices for wireless communications are described. A user may select a cable modem (CM) at a graphical user interface (GUI) of a network device for testing. The network device may receive the indication of a selected query from GUI and transmit the selected query to the CM. The network device may receive a response message from the CM and compare the response message to an expected response message. The network device may generate a report indicating a status of the CM based on the comparing. The status of the CM may relate to a compliance of the CM to a standard. Additionally or alternatively, the status of the CM may indicate a performance level of the CM.

公开(公告)号：US12184401B1

公开(公告)日：2024-12-31

申请号：US17966710

申请日：2022-10-14

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Mu Xu ,  Luis Alberto Campos ,  Curtis D. Knittle ,  Haipeng Zhang ,  Zhensheng Jia

IPC: H04J14/02 ,  H04Q11/00

Abstract: A passive optical tap includes a first wavelength division multiplexer (WDM), a second WDM, a first optical splitter, and a second optical splitter. The first wavelength division multiplexer (WDM) has a first plurality of single-channel ports. The second WDM has a second plurality of single-channel ports. The first optical splitter has a first combined-power port optically coupled to a first one of the first plurality of single-channel ports and a first split-power port optically coupled to a first one of the second plurality of single-channel ports. The second optical splitter has a second combined-power port optically coupled to a second one of the second plurality of single-channel ports and a second split-power port optically coupled to a second one of the first plurality of single-channel ports.

公开(公告)号：US11770321B2

公开(公告)日：2023-09-26

申请号：US17492943

申请日：2021-10-04

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Jason W. Rupe ,  Curtis D. Knittle ,  Jingjie Zhu ,  John Phillips

IPC: H04L43/50 ,  H04L12/28 ,  H04L69/40

CPC classification number: H04L43/50 ,  H04L12/287 ,  H04L69/40 ,  H04L12/2801

Abstract: Methods, systems, and devices for wireless communications are described. A user may select a cable modem (CM) at a graphical user interface (GUI) of a network device for testing. The network device may receive the indication of a selected query from GUI and transmit the selected query to the CM. The network device may receive a response message from the CM and compare the response message to an expected response message. The network device may generate a report indicating a status of the CM based on the comparing. The status of the CM may relate to a compliance of the CM to a standard. Additionally or alternatively, the status of the CM may indicate a performance level of the CM.