公开(公告)号：US11799550B2

公开(公告)日：2023-10-24

申请号：US17734338

申请日：2022-05-02

Applicant: CABLE TELEVISION LABORATORIES, INC.

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

IPC: H04B10/2507 ,  H04B10/54 ,  H04B10/69 ,  H03M3/00

CPC classification number: H04B10/2507 ,  H04B10/541 ,  H04B10/697 ,  H03M3/424 ,  H03M3/43

Abstract: An analog signal processor includes a sampling unit configured to (i) filter, in the frequency domain, a received time domain analog signal into a low-frequency end of a corresponding frequency spectrum, (ii) sample the filtered analog signal at a frequency substantially higher than the low-frequency end, and (iii) spread quantization noise over an expanded Nyquist zone of the corresponding frequency spectrum. The processor further includes a noise shaping unit configured to shape the spread quantization noise out of the low-frequency end of the corresponding frequency spectrum such that the filtered analog signal and the shaped quantization noise are substantially separated in the frequency domain, and a quantization unit configured to apply delta-sigma modulation to the filtered analog signal using at least one quantization bit, and output a digitized bit stream that substantially follows the amplitude of the received time domain analog signal.

公开(公告)号：US20230336247A1

公开(公告)日：2023-10-19

申请号：US18214142

申请日：2023-06-26

Applicant: CABLE TELEVISION LABORATORIES, INC.

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

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

CPC classification number: H04B10/504 ,  H04J14/04 ,  H04B10/506 ,  H04B10/505 ,  H04B10/502 ,  H04B10/63 ,  H04B10/64 ,  H04B10/532 ,  H04J14/06

Abstract: A transmitter for an optical communication network includes a primary laser source input substantially confined to a single longitudinal mode, an input data stream, and a modulator including at least one secondary laser having a resonator frequency of the single longitudinal mode of the primary laser source. The modulator is configured to receive the primary laser source input and the input data stream, and output a laser modulated data stream.

公开(公告)号：US11792020B2

公开(公告)日：2023-10-17

申请号：US17677028

申请日：2022-02-22

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Brian A. Scriber

IPC: H04L9/32

CPC classification number: H04L9/3263 ,  H04L9/321

Abstract: A method for managing certificates includes the steps of transmitting, over an electronic network by an electronic device of a client, a certificate request to a certificate management portal separate from the client, establishing an interaction with an electronic interface of a certificate authority by the certificate management portal; generating, by the certificate authority, a certificate package, delivering the generated certificate package to the certificate management portal, and downloading from the certificate management portal, by the client, at least one certificate of the delivered certificate package.

公开(公告)号：US11757864B1

公开(公告)日：2023-09-12

申请号：US17165065

申请日：2021-02-02

Applicant: Cable Television Laboratories, Inc.

Inventor： Darshak Thakore ,  Stuart Hoggan ,  Dave Belt ,  Amol Bhagwat

IPC: H04L9/40 ,  H04L9/08

CPC classification number: H04L63/0823 ,  H04L63/029 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/0869 ,  H04L63/12 ,  H04L63/166 ,  H04L9/0841

Abstract: Authenticating devices utilizing Transport Layer Security (TLS) protocol to facilitate exchange of authentication information or other data to permit or otherwise enable access to services requiring authentication credentials, certificates, tokens or other information. The authentication may utilize Digital Transmission Content Protection (DTCP) certificates, Diffie-Hellman (DH) parameters or other information available to the authenticating devices, optionally without requiring device requesting authentication to obtain an X.509 certificate.

公开(公告)号：US11757774B1

公开(公告)日：2023-09-12

申请号：US17732182

申请日：2022-04-28

Applicant: Cable Television Laboratories, Inc.

Inventor： Luther E. Smith ,  Jonathan Ray Dennis ,  Aaron Quinto

IPC: H04L45/64 ,  H04L45/7452 ,  H04L49/351 ,  H04W40/24 ,  H04L45/243

CPC classification number: H04L45/64 ,  H04L45/243 ,  H04L45/7452 ,  H04L49/351 ,  H04W40/24

Abstract: Systems and methods implement multi-channel communication by remapping Ethernet frames. An Ethernet frame is captured leaving a first bridge of an Ethernet switch. A destination address of the Ethernet frame is matched to a remap rule and to a filter defined for the remap rule. The destination address of the Ethernet frame is updated based upon the remap rule, and the Ethernet frame is output to an Ethernet port corresponding to the updated destination address of the Ethernet frame. The remap rule and the filter allow the Ethernet switch to route traffic at an OSI model layer-4 level.

公开(公告)号：US11743771B2

公开(公告)日：2023-08-29

申请号：US17106621

申请日：2020-11-30

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Vikas Sarawat ,  Bernard McKibben ,  Neeharika Allanki

IPC: H04W4/00 ,  H04W28/08 ,  H04W48/06 ,  H04W28/22 ,  H04W28/02

CPC classification number: H04W28/0942 ,  H04W28/0908 ,  H04W28/0983 ,  H04W28/22 ,  H04W48/06 ,  H04W28/02 ,  H04W28/0236

Abstract: Managing wireless access points and/or other devices providing wireless signaling to multiple clients is contemplated. The wireless access point may be managed according to a load balancing strategy directed towards achieving desired network throughput using forced disassociation of clients based on traffic type or other service related indicators and/or force disassociation of roaming partners based on neighboring access point capabilities.

公开(公告)号：US11743029B1

公开(公告)日：2023-08-29

申请号：US17326168

申请日：2021-05-20

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Massimiliano Pala ,  Ronald H. Ih

IPC: H04L9/40 ,  H04L9/00 ,  H04W4/50 ,  H04L9/32 ,  H04L9/08

CPC classification number: H04L9/006 ,  H04L9/0877 ,  H04L9/3263 ,  H04L9/3268 ,  H04W4/50 ,  H04L2209/127 ,  H04L2209/805

Abstract: A method for registering and provisioning an electronic device is provided. The method includes a step of inserting a first keypair into a secure element of the electronic device. The first keypair includes a public key and a private key. The method further includes a step of requesting, from a server configured to register and provision connected devices, a provisioning of credentials of the electronic device. The method further includes a step of verifying, by the server, the electronic device credentials. The method further includes a step of registering, by the server, the electronic device. The method further includes a step of transmitting, from the server to the electronic device, a device certificate. The method further includes steps of installing the transmitted device certificate within the secure element of the electronic device, and provisioning the electronic device according to the installed device certificate.

公开(公告)号：US11706255B2

公开(公告)日：2023-07-18

申请号：US16941328

申请日：2020-07-28

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： Bernard McKibben ,  Tao Wan

IPC: H04L9/40 ,  H04W12/122 ,  H04W12/06 ,  H04L101/622

CPC classification number: H04L63/162 ,  H04W12/06 ,  H04W12/122 ,  H04L2101/622

Abstract: A network server is provided. The network server includes at least one processor in communication with at least one memory device. The network server is programmed to receive an access request originating from a user device, perform an authentication process for connecting with the user device, transmit, to the user device, a request message for a media access control (MAC) address of the user device, receive, from the user device, a response message including the MAC address of the user device, and determine whether to grant the access request based on the MAC address of the user device.

公开(公告)号：US11690101B1

公开(公告)日：2023-06-27

申请号：US17201430

申请日：2021-03-15

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Balkan Kecicioglu ,  Dorin Gheorghe Viorel

IPC: H04W74/08 ,  H04L5/00 ,  H04L27/00 ,  H04B7/02 ,  H04W88/08 ,  H04W28/16

CPC classification number: H04W74/0816 ,  H04B7/02 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0055 ,  H04L27/0006 ,  H04W74/0808 ,  H04W28/16 ,  H04W88/08 ,  H04W88/085

Abstract: A wireless communications system provides coordinated multi point transmission over a channel of a wireless transmission medium. The system includes a central controller having a processor and a memory, a first cell region having a first communications node disposed therein, and a plurality of neighboring cell regions disposed about the first cell region. Each of the plurality of neighboring cell regions includes a second communications node disposed therein. The system includes a plurality of user equipment devices disposed within an overlapping region of the first cell region and one of the neighboring cell regions. The central controller is configured to assign the first communications node to be an anchor transmission point of a coordinated set of transmission points. The anchor transmission point is configured to perform carrier sensing on the channel. The coordinated set of transmission points includes the first communications node and at least one second communications node.

公开(公告)号：US11689291B2

公开(公告)日：2023-06-27

申请号：US17854564

申请日：2022-06-30

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Haipeng Zhang ,  Junwen Zhang ,  Mu Xu ,  Zhensheng Jia ,  Luis Alberto Campos

IPC: H04B10/50 ,  G02F1/21 ,  G02B27/28 ,  H01S5/32 ,  H04B10/516 ,  H04B10/25 ,  H01S5/323

CPC classification number: H04B10/504 ,  G02B27/283 ,  G02B27/286 ,  G02F1/218 ,  H01S5/3224 ,  H01S5/32391 ,  H04B10/25 ,  H04B10/5161 ,  G02F1/212

Abstract: An optical full-field transmitter for an optical communications network includes a primary laser source configured to provide a narrow spectral linewidth for a primary laser signal, and a first intensity modulator in communication with a first amplitude data source. The first intensity modulator is configured to output a first amplitude-modulated optical signal from the laser signal. The transmitter further includes a first phase modulator in communication with a first phase data source and the first amplitude-modulated optical signal. The first phase modulator is configured to output a first two-stage full-field optical signal. The primary laser source has a structure based on a III-V compound semiconductor.