公开(公告)号：US11362797B2

公开(公告)日：2022-06-14

申请号：US17068474

申请日：2020-10-12

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle ,  Jing Wang

IPC: H04L5/02 ,  H04H20/69 ,  H04L12/28 ,  H04H20/78 ,  H04N21/61

Abstract: An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.

公开(公告)号：US11251947B1

公开(公告)日：2022-02-15

申请号：US16870781

申请日：2020-05-08

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Jing Wang ,  Bernardo Huberman ,  Luis Alberto Campos ,  Zhensheng Jia

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/14 ,  H04B10/27

Abstract: A method for quantum-key-distribution-based encrypted data transmission in an optical/radio-access network, having a plurality of end nodes, includes, at a first node of the network: (a) via an optical quantum channel, exchanging photonic qubits with a second node, wherein the photonic qubits are processable to derive therefrom an initial key such that each of the first and second nodes have a copy of the initial key, (b) via a classical channel, exchanging a series of encrypted keys with the second node, wherein a first encrypted key is encrypted by the initial key, and each subsequent encrypted key is encrypted by a preceding encrypted key, and (c) via the classical channel, exchanging encrypted data with the second node, wherein the encrypted data is encrypted by a last encrypted key in the series of encrypted keys. One, but not both, of the first and second nodes is an end node.

公开(公告)号：US11239916B2

公开(公告)日：2022-02-01

申请号：US16989572

申请日：2020-08-10

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.

公开(公告)号：US20210367676A1

公开(公告)日：2021-11-25

申请号：US17397594

申请日：2021-08-09

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Chuang Zhou ,  Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle ,  Jing Wang

IPC: H04B10/50 ,  H04B10/63 ,  H04B10/532 ,  H04B10/64 ,  H04J14/06 ,  H04J14/04

Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

公开(公告)号：US11115126B2

公开(公告)日：2021-09-07

申请号：US16408285

申请日：2019-05-09

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittie ,  Jing Wang

IPC: H04J14/00 ,  H04B10/50 ,  H04B10/63 ,  H04B10/532 ,  H04B10/64 ,  H04J14/06 ,  H04J14/04 ,  H04Q11/00 ,  H04J14/02

Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

公开(公告)号：US20210194591A1

公开(公告)日：2021-06-24

申请号：US17195215

申请日：2021-03-08

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Junwen Zhang ,  Zhensheng Jia ,  Luis Alberto Campos ,  Haipeng Zhang ,  Mu Xu ,  Jing Wang ,  Curtis Dean Knittle ,  Chuang Zhou

IPC: H04B10/50 ,  H04J14/06 ,  H04J14/04 ,  H04B10/63 ,  H04B10/64 ,  H04B10/532

Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

公开(公告)号：US11025461B2

公开(公告)日：2021-06-01

申请号：US16835168

申请日：2020-03-30

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Jing Wang ,  Luis Alberto Campos ,  Zhensheng Jia

IPC: H04L25/49 ,  H04B10/2575 ,  H04W88/08 ,  H03M3/00 ,  H04B1/04

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.

公开(公告)号：US11025270B1

公开(公告)日：2021-06-01

申请号：US16902129

申请日：2020-06-15

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Mu Xu ,  Zhensheng Jia ,  Jing Wang ,  Luis Alberto Campos

IPC: H03M3/00 ,  H03M7/36 ,  H03M1/12 ,  H03M1/06 ,  H03M13/00 ,  G06F17/17 ,  G06F17/16

Abstract: A method for differentiator-based compression of digital data includes (a) multiplying a tap-weight vector by an original data vector to generate a predicted signal, the original data vector comprising N sequential samples of an original signal, N being an integer greater than or equal to one, (b) using a subtraction module, subtracting the predicted signal from a sample of the original signal to obtain an error signal, (c) using a quantization module, quantizing the error signal to obtain a quantized error signal, and (d) updating the tap-weight vector according to changing statistical properties of the original signal.

公开(公告)号：US10805058B2

公开(公告)日：2020-10-13

申请号：US15875336

申请日：2018-01-19

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle ,  Jing Wang

IPC: H04L5/02 ,  H04H20/69 ,  H04L12/28 ,  H04H20/78 ,  H04N21/61

Abstract: An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.

公开(公告)号：US20200244367A1

公开(公告)日：2020-07-30

申请号：US16847463

申请日：2020-04-13

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Chuang Zhou ,  Zhensheng Jia ,  Luis Alberto Campos ,  Curtis Dean Knittle ,  Jing Wang

IPC: H04B10/50 ,  H04J14/04 ,  H04J14/06 ,  H04B10/64 ,  H04B10/532 ,  H04B10/63

Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.