including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers

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Parent Industries

HELECTRICITY H04Electric communication H04BTRANSMISSION H04B10/00Transmission systems employing electromagnetic waves other than radio-waves

Current Industry

H04B10/613including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers

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Patents Grantslast 30 patents

Information Patent Grant
Differential differencing transimpedance amplifier for coherent app...
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- Issue date Jan 7, 2025
- Cisco Technology, Inc.
- Kadaba Lakshmikumar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiving device and optical receiving method
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- Issue date Dec 3, 2024
- Nippon Telegraph and Telephone Corporation
- Ryo Igarashi
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Information Patent Grant
Method and system for generating the spectrogram of a signal
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- Issue date Oct 29, 2024
- Institut National de la Recherche Scientifique
- Jose Azana
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulator, optical receiver, conversion device, spin orbita...
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- Hitachi, Ltd.
- Shinichi Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical coherent receiver having an optical hybrid configuration wi...
- Patent number 12,101,126
- Issue date Sep 24, 2024
- Lumentum Technology UK Limited
- Shibnath Pathak
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 12,095,546
- Issue date Sep 17, 2024
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reduced complexity polarization combining method for coherent DAS
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- Issue date Sep 3, 2024
- NEC Corporation
- Junqiang Hu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coherent optical breakout
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- Hongbin Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiple access optical subcarriers
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- Amir Jafari
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Information Patent Grant
High power handling digitizer using photonics
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- Issue date Mar 5, 2024
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Information Patent Grant
Systems and methods for carrier phase recovery
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- Issue date Jan 23, 2024
- Cable Television Laboratories, Inc.
- Haipeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
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- Issue date Nov 21, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
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- Issue date Oct 17, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Technology for optical modulator evaluation on basis of phase recovery
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- Issue date Oct 17, 2023
- National Institute of Information and Communications Technology
- Yuki Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio frequency (RF) signal processor with photonic local oscillato...
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- Ronald D. Esman
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Information Patent Grant
System and methods for coherent optics based daisy-chaining
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- Issue date Aug 8, 2023
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- Luis Alberto Campos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system and optical communication method
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- Issue date Aug 8, 2023
- Nippon Telegraph and Telephone Corporation
- Yuto Sagae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems, devices, and methods for tuning transceivers
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- Issue date Jul 25, 2023
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- Nikolaos (Nikos) Argyris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
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- Issue date Apr 25, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coherent optical receiver device and coherent optical receiving method
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- Issue date Apr 18, 2023
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission/reception device and transmission/reception method
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- Kiyoshi Onohara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Leveraging coherent detection to measure performance of optical tra...
- Patent number 11,601,204
- Issue date Mar 7, 2023
- Cisco Technology, Inc.
- Fabio Bottoni
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Information Patent Grant
Adaptive constellation diagram reducing the impact of phase distort...
- Patent number 11,581,948
- Issue date Feb 14, 2023
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- Lutz Rapp
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Information Patent Grant
Code division multiple access optical subcarriers
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- Issue date Dec 27, 2022
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- Amir Jafari
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Information Patent Grant
Systems and methods for skew detection and pre-compensation in a co...
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- Issue date Dec 27, 2022
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- Mu Xu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,483,066
- Issue date Oct 25, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for digital signal constellation transformation
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- Issue date Oct 11, 2022
- MARVELL ASIA PTE. LTD.
- Shu Hao Fan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiple access optical subcarriers
- Patent number 11,451,292
- Issue date Sep 20, 2022
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and methods for coherent optics based daisy-chaining
- Patent number 11,411,649
- Issue date Aug 9, 2022
- Cable Television Laboratories, Inc.
- Luis Alberto Campos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wide-area sensing of amplitude modulated signals
- Patent number 11,375,146
- Issue date Jun 28, 2022
- Massachusetts Institute of Technology
- Kenneth Schultz
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

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- Publication number 20240405870
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- Hayato SANO
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OPTICAL COHERENT RECEIVER HAVING AN OPTICAL HYBRID CONFIGURATION WI...
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OPTICAL TRANSMITTER THAT TRANSMITS MULTI-LEVEL SIGNAL
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COHERENT DETECTION METHOD AND APPARATUS, AND OPTICAL TRANSMISSION S...
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- ZTE Corporation
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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METHOD AND SYSTEM FOR GENERATING THE SPECTROGRAM OF A SIGNAL
- Publication number 20240097782
- Publication date Mar 21, 2024
- Institut National de la Recherche Scientifique
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD
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TECHNOLOGY FOR OPTICAL MODULATOR EVALUATION ON BASIS OF PHASE RECOVERY
- Publication number 20230120581
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- National Institute of Information and Communications Technology
- Yuki YOSHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
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- Infinera Corporation
- Jeffrey T. Rahn
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FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20230061657
- Publication date Mar 2, 2023
- Infinera Corporation
- Jeffrey T. Rahn
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LEVERAGING COHERENT DETECTION TO MEASURE PERFORMANCE OF OPTICAL TRA...
- Publication number 20230013373
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- Cisco Technology, Inc.
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TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
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FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
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- Publication date Nov 24, 2022
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FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
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SYSTEMS, DEVICES, AND METHODS FOR TUNING TRANSCEIVERS
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- MELLANOX TECHNOLOGIES LTD.
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OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD
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OPTICAL MODULATOR, OPTICAL RECEIVER, CONVERSION DEVICE, SPIN ORBITA...
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TRANSMISSION/RECEPTION DEVICE AND TRANSMISSION/RECEPTION METHOD
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REDUCED COMPLEXITY POLARIZATION COMBINING METHOD FOR COHERENT DAS
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- Junqiang HU
- G01 - MEASURING TESTING
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FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
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- Lutz RAPP
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- INPHI CORPORATION
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OPTICAL COMMUNICATION SYSTEM EMPLOYING A MULTIDIMENSIONAL CONSTELLA...
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- Nokia Solutions and Networks Oy
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE

including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK coherent receivers

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Differential differencing transimpedance amplifier for coherent app...

Optical receiving device and optical receiving method

Method and system for generating the spectrogram of a signal

Optical modulator, optical receiver, conversion device, spin orbita...

Optical coherent receiver having an optical hybrid configuration wi...

Frequency division multiple access optical subcarriers

Reduced complexity polarization combining method for coherent DAS

Coherent optical breakout

Time division multiple access optical subcarriers

High power handling digitizer using photonics

Systems and methods for carrier phase recovery

Frequency division multiple access optical subcarriers

Frequency division multiple access optical subcarriers

Technology for optical modulator evaluation on basis of phase recovery

Radio frequency (RF) signal processor with photonic local oscillato...

System and methods for coherent optics based daisy-chaining

Optical communication system and optical communication method

Systems, devices, and methods for tuning transceivers

Frequency division multiple access optical subcarriers

Coherent optical receiver device and coherent optical receiving method

Transmission/reception device and transmission/reception method

Leveraging coherent detection to measure performance of optical tra...

Adaptive constellation diagram reducing the impact of phase distort...

Code division multiple access optical subcarriers

Systems and methods for skew detection and pre-compensation in a co...

Frequency division multiple access optical subcarriers

Apparatus and methods for digital signal constellation transformation

Time division multiple access optical subcarriers

System and methods for coherent optics based daisy-chaining

Wide-area sensing of amplitude modulated signals

Patents Applicationslast 30 patents

OPTICAL COHERENT RECEIVER HAVING AN OPTICAL HYBRID CONFIGURATION WI...

DATA COMMUNICATION METHOD, DEVICE, BASE STATION EQUIPMENT AND COMPU...

BI-DIRECTIONAL OPTICAL COMMUNICATION SYSTEM

OPTICAL RECEIVING DEVICE

OPTICAL COHERENT RECEIVER HAVING AN OPTICAL HYBRID CONFIGURATION WI...

SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD AND COMMUNICA...

OPTICAL TRANSMITTER THAT TRANSMITS MULTI-LEVEL SIGNAL

COHERENT DETECTION METHOD AND APPARATUS, AND OPTICAL TRANSMISSION S...

METHOD AND SYSTEM FOR GENERATING THE SPECTROGRAM OF A SIGNAL

COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD

TECHNOLOGY FOR OPTICAL MODULATOR EVALUATION ON BASIS OF PHASE RECOVERY

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

LEVERAGING COHERENT DETECTION TO MEASURE PERFORMANCE OF OPTICAL TRA...

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

SYSTEMS, DEVICES, AND METHODS FOR TUNING TRANSCEIVERS

OPTICAL COMMUNICATION SYSTEM AND OPTICAL COMMUNICATION METHOD

OPTICAL MODULATOR, OPTICAL RECEIVER, CONVERSION DEVICE, SPIN ORBITA...

TRANSMISSION/RECEPTION DEVICE AND TRANSMISSION/RECEPTION METHOD

REDUCED COMPLEXITY POLARIZATION COMBINING METHOD FOR COHERENT DAS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

OPTICAL RECEIVER AND OPTICAL SPACE COMMUNICATION SYSTEM

OPTICAL TRANSMITTER AND OPTICAL RECEIVER

METHOD AND SYSTEM FOR SECURE PHASE-ENCODED DIGITAL COMMUNICATION OV...

COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD

ADAPTIVE CONSTELLATION DIAGRAM REDUCING THE IMPACT OF PHASE DISTORT...

APPARATUS AND METHODS FOR DIGITAL SIGNAL CONSTELLATION TRANSFORMATION

OPTICAL COMMUNICATION SYSTEM EMPLOYING A MULTIDIMENSIONAL CONSTELLA...