公开(公告)号：US10652056B2

公开(公告)日：2020-05-12

申请号：US16391061

申请日：2019-04-22

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Jing Wang ,  Luis Alberto Campos ,  Zhensheng Jia

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

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：US20200119813A1

公开(公告)日：2020-04-16

申请号：US16711293

申请日：2019-12-11

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 ,  H04B10/532 ,  H04B10/64

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：US20200044765A1

公开(公告)日：2020-02-06

申请号：US16543509

申请日：2019-08-16

Applicant: CABLE TELEVISION LABORATORIES, INC

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

IPC: H04J14/00 ,  H04B10/43 ,  H04L5/14 ,  H04J14/02 ,  H04B10/25

Abstract: A full duplex communication network includes an optical transmitter end having a first coherent optics transceiver, an optical receiver end having a second coherent optics transceiver, and an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver. The first coherent optics transceiver is configured to simultaneously transmit a downstream optical signal and receive an upstream optical signal. The second coherent optics transceiver is configured to simultaneously receive the downstream optical signal from the first coherent optics transceiver and transmit the upstream optical signal first coherent optics transceiver. At least one of the downstream optical signal and the upstream optical signal includes at least one coherent optical carrier and at least one non-coherent optical carrier.

公开(公告)号：US10523324B2

公开(公告)日：2019-12-31

申请号：US16180912

申请日：2018-11-05

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Lin Cheng ,  Luis Alberto Campos ,  Jing Wang ,  Zhensheng Jia

IPC: H04B10/00 ,  H04B10/2575 ,  H04B10/27 ,  H04J99/00 ,  H04W72/04 ,  H04J14/00

Abstract: A resource allocation method is provided for a non-orthogonal multiple access distribution of access network users communicatively coupled to a single transport medium. The method includes steps of allocating a first frequency and time domain resource to a first user and a second frequency and time domain resource to a second user of the access network users, obtaining channel information regarding a particular communication channel of the access network for which resources are allocated, grouping the first user with the second user based on an overlap of the first frequency and time domain resource with the second frequency and time domain resource, and assigning the first user to a different power allocation resource than the second user within the frequency and time domain overlap.

公开(公告)号：US20190268074A1

公开(公告)日：2019-08-29

申请号：US16408285

申请日：2019-05-09

Applicant: CABLE TELEVISION LABORATORIES, INC

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

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

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：US20190158182A1

公开(公告)日：2019-05-23

申请号：US16198396

申请日：2018-11-21

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Zhensheng Jia ,  Luis Alberto Campos ,  Jing Wang

IPC: H04B10/40 ,  H04J14/02 ,  H04B10/27 ,  H04B10/25

Abstract: A communication network includes an optical hub having a first coherent optics transceiver, a fiber node having a second coherent optics transceiver, an optical transport medium operably coupling the first coherent optics transceiver to the second coherent optics transceiver, a first optical circulator disposed at the optical hub, and a second optical circulator disposed at the fiber node. The first coherent optics transceiver is configured to (i) transmit a downstream optical signal at a first wavelength, and (ii) receive an upstream optical signal at the first wavelength. The second coherent optics transceiver is configured to (i) receive the downstream optical signal from the first coherent optics transceiver at the first wavelength, and (ii) transmit the upstream optical signal at the first wavelength. The first and second optical circulators are configured to separate the downstream optical signal from the upstream optical signal.

公开(公告)号：US20190110084A1

公开(公告)日：2019-04-11

申请号：US16153692

申请日：2018-10-05

Applicant: CABLE TELEVISION LABORATORIES, INC

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

IPC: H04N19/94 ,  H04N19/126 ,  H04J14/04 ,  H03M3/00

CPC classification number: H04N19/94 ,  H03M1/008 ,  H03M1/1235 ,  H03M1/664 ,  H03M3/04 ,  H03M3/41 ,  H03M3/504 ,  H03M7/30 ,  H03M7/3082 ,  H04J14/04 ,  H04N19/126

Abstract: An optical network includes a transmitting portion configured to (i) encode an input digitized sequence of data samples into a quantized sequence of data samples having a first number of digits per sample, (ii) map the quantized sequence of data samples into a compressed sequence of data samples having a second number of digits per sample, the second number being lower than the first number, and (iii) modulate the compressed sequence of data samples and transmit the modulated sequence over a digital optical link. The optical network further includes a receiving portion configured to (i) receive and demodulate the modulated sequence from the digital optical link, (ii) map the demodulated sequence from the second number of digits per sample into a decompressed sequence having the first number of digits per sample, and (iii) decode the decompressed sequence.

公开(公告)号：US12200122B1

公开(公告)日：2025-01-14

申请号：US17396089

申请日：2021-08-06

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Massimiliano Pala ,  Bernardo Huberman ,  Jing Wang

IPC: H04L9/08 ,  H04L9/32 ,  H04L9/40

Abstract: A server device is provided for authenticating client devices on a communication network. The server device includes a transceiver configured for operable communication with at least one client of the communication network, and a processor including a memory configured to store computer-executable instructions. When executed by the processor, the instructions cause the server device to receive an authentication request from a client device, generate a seed for a first key for the client device if the client device authenticates, transmit the seed for the first key to the client device, receive a hash of the first key from the client device, and validate the first key based on the hash of the first key.

公开(公告)号：US12166867B1

公开(公告)日：2024-12-10

申请号：US17951968

申请日：2022-09-23

Applicant: CABLE TELEVISION LABORATORIES, iNC.

Inventor： Jing Wang ,  Bernardo Huberman

IPC: H04B10/70 ,  H04L9/08

Abstract: A node for a quantum key distribution (QKD) network includes an optical input that receives an optical pulse from a hub of the QKD network and an optical splitter that splits the optical pulse into an optical timing pulse and a pre-qubit pulse. The node also includes a qubit encoder controllable to encode the pre-qubit pulse into a photonic qubit; a qubit trigger circuit that controls, based on the optical timing pulse, the qubit encoder while the pre-qubit pulse propagates through the qubit encoder; and an optical output that transmits the photonic qubit to the hub.

公开(公告)号：US11956351B1

公开(公告)日：2024-04-09

申请号：US18126995

申请日：2023-03-27

Applicant: CABLE TELEVISION LABORATORIES, INC.

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

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

CPC classification number: H04L9/0855 ,  H04B10/27 ,  H04L9/0891 ,  H04L9/14 ,  H04L2209/80

Abstract: A first node of a network includes a quantum receiver, a classical transceiver, and an initial-key generator that cooperate with a second node of the network to receive an initial key via the quantum receiver. The first node includes a key-series generator that (i) decrypts, with the initial key, a first encrypted key of a series of encrypted keys to generate a first unencrypted key of a respective series of unencrypted keys and (ii) decrypts each subsequent encrypted key of the series of encrypted keys with a preceding unencrypted key of the series of unencrypted keys to generate a subsequent unencrypted key of the series of unencrypted keys. The first node includes one or both of a decryptor and an encryptor. The decryptor decrypts encrypted data using a last unencrypted key of the series of unencrypted keys. The encryptor encrypts unencrypted data using the last unencrypted key.