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公开(公告)号：US11451298B2
公开(公告)日：2022-09-20
申请号：US16238415
申请日：2019-01-02
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Luis Alberto Campos , Zhensheng Jia
IPC: H04B10/00 , H04B10/2575 , H04J14/02 , H04Q11/00 , H04B10/272
Abstract: An optical network communication system includes an optical hub, an optical distribution center, at least one fiber segment, and at least two end users. The optical hub includes an intelligent configuration unit configured to monitor and multiplex at least two different optical signals into a single multiplexed heterogeneous signal. The optical distribution center is configured to individually separate the at least two different optical signals from the multiplexed heterogeneous signal. The at least one fiber segment connects the optical hub and the optical distribution center, and is configured to receive the multiplexed heterogeneous signal from the optical hub and distribute the multiplexed heterogeneous signal to the optical distribution center. The at least two end users each include a downstream receiver configured to receive one of the respective separated optical signals from the optical distribution center.
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公开(公告)号：US20220239537A1
公开(公告)日：2022-07-28
申请号：US17717571
申请日：2022-04-11
Applicant: Cable Television Laboratories, Inc.
Inventor： Douglas D. Jones , Luis Alberto Campos , Thomas Holtzman Williams
IPC: H04L27/26 , H04Q11/00 , H04B10/27 , H04L5/00 , H04B10/548
Abstract: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.
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公开(公告)号：US20220239377A1
公开(公告)日：2022-07-28
申请号：US17723025
申请日：2022-04-18
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle
Abstract: An injection locked transmitter for an optical communication network includes a primary seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one secondary laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the primary seed laser source. The laser injected modulator is configured to receive the primary seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US11349592B1
公开(公告)日：2022-05-31
申请号：US17216435
申请日：2021-03-29
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Mu Xu , Zhensheng Jia , Haipeng Zhang , Luis Alberto Campos
IPC: H04J14/00 , H04J14/02 , H04B10/2519 , H04B10/27 , H04B10/532 , H04B10/516
Abstract: An optical communication network includes a downstream optical transceiver. The downstream optical transceiver includes at least one coherent optical transmitter configured to transmit a downstream coherent dual-band optical signal having a left-side band portion, a right-side band portion, and a central optical carrier disposed within a guard band between the left-side band portion and the right-side band portion. The network further includes an optical transport medium configured to carry the downstream coherent dual-band optical signal from the downstream optical transceiver. The network further includes at least one modem device operably coupled to the optical transport medium and configured to receive the downstream coherent dual-band optical signal from the optical transport medium. The at least one modem device includes a downstream coherent optical receiver, and a first slave laser injection locked to a frequency of the central optical carrier.
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公开(公告)号：US20220158732A1
公开(公告)日：2022-05-19
申请号：US17588875
申请日：2022-01-31
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia , Curtis Dean Knittle
IPC: H04B10/2507 , H03M3/00
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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Patent Agency Ranking
公开(公告)号：US11303486B2
公开(公告)日：2022-04-12
申请号：US16806969
申请日：2020-03-02
Applicant: Cable Television Laboratories, Inc.
Inventor： Douglas D. Jones , Luis Alberto Campos , Thomas Holtzman Williams
IPC: H04L27/26 , H04Q11/00 , H04B10/27 , H04L5/00 , H04B10/548
Abstract: A method for transmitting a digital frame by an optical network unit in a digital communications network includes steps of arranging received data into a series of symbols, installing a primary cyclic prefix immediately preceding the series of symbols in time, and inserting individual ones of a plurality of secondary cyclic prefixes between each adjacent pair of symbols in the series of symbols. A length of each secondary cyclic prefix corresponds to a first duration shorter than an amount of time needed to turn on a laser of the optical network unit. The method further includes a step of providing to the optical network unit the digital frame. The digital frame includes the primary cyclic prefix, the plurality of secondary cyclic prefixes, and the series of symbols. The method further includes a step of modulating the provided digital frame by a laser of the optical network unit.
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公开(公告)号：US20220103414A1
公开(公告)日：2022-03-31
申请号：US17643980
申请日：2021-12-13
Applicant: Cable Television Laboratories, Inc.
Inventor： Luis Alberto Campos , Jennifer Andreoli-Fang , Judson D. Cary , David Daniel Smith
Abstract: A method for transmitting data through a multi-media communication network includes converting transmission entities into data symbols at a first communication device, transmitting the data symbols from the first communication device to a second communication device through at least two different types of communication media using only lower PHY layers of the at least two different types of communication media, and converting the data symbols into transmission entities at the second communication device. A network implementing a universal data link includes a first communication device configured to convert transmission entities into data symbols, a second communication device configured to convert the data symbols into transmission entities, at least a first communication medium and a second communication medium communicatively coupled between the first communication device and the second communication device, and a first physical-layer translator configured to translate data symbols without converting the data symbols into transmission entities.
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公开(公告)号：US11284311B2
公开(公告)日：2022-03-22
申请号：US16592654
申请日：2019-10-03
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Stephen Glennon , Luis Alberto Campos , Mario Di Dio
Abstract: A radio access network (RAN) node is provided for a small cell of a wireless access network having a coaxial line. The RAN node includes an input operably coupled with the coaxial line and an output configured to wirelessly communicate with at least one user equipment device within an operable vicinity of the wireless access network. The RAN node further includes a transmission path configured to (i) connect the input to the output, and (ii) communicate a first radio frequency (RF) signal from the input to the output, and a reception path separate from the transmission path, and configured to (i) connect the output to the input, and (ii) communicate a second radio frequency (RF) signal from the output to the input. The RAN node is configured to dynamically switch between the transmission path and the reception path in response to a tone received from the wireless access network.
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公开(公告)号：US11201777B2
公开(公告)日：2021-12-14
申请号：US16255764
申请日：2019-01-23
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Luis Alberto Campos , Jennifer Andreoli-Fang , Judson D. Cary , David Daniel Smith
Abstract: A method for transmitting data through a multi-media communication network includes converting transmission entities into data symbols at a first communication device, transmitting the data symbols from the first communication device to a second communication device through at least two different types of communication media using only lower PHY layers of the at least two different types of communication media, and converting the data symbols into transmission entities at the second communication device. A network implementing a universal data link includes a first communication device configured to convert transmission entities into data symbols, a second communication device configured to convert the data symbols into transmission entities, at least a first communication medium and a second communication medium communicatively coupled between the first communication device and the second communication device, and a first physical-layer translator configured to translate data symbols without converting the data symbols into transmission entities.
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公开(公告)号：US11159250B2
公开(公告)日：2021-10-26
申请号：US16384846
申请日：2019-04-15
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Thomas Holtzman Williams , Luis Alberto Campos , Jason W. Rupe
Abstract: A transmitter is configured to transmit data to a receiver over a communications network. The transmitter includes a memory for storing computer-executable instructions and a processor in operable communication with the memory. The processor is configured to (i) collect spectrum data of a spectral band over a first sampling interval, and (ii) store the collected spectrum data in the memory. The transmitter further includes a common path distortion (CPD) detection unit configured to (i) sample the collected spectrum data, over a second sampling interval less than the first sampling interval, for a plurality of sub-bands within the spectral band, (ii) analyze the spectral band and each sub-band for indications of common path distortion, and (iii) inject a test signal configured for detection at a headend of the communications network. The transmitter further includes a modem portion configured to operably communicate with the headend and the receiver.
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