公开(公告)号：US10541721B2

公开(公告)日：2020-01-21

申请号：US15716197

申请日：2017-09-26

Applicant: Analog Devices Global Unlimited Company

Inventor： Michael W. O'Brien ,  Sudarshan Onkar

IPC: H03C3/09 ,  H04B10/556 ,  H04L27/12 ,  H04B1/7156 ,  H04L27/34 ,  H04L1/00 ,  H04L27/20 ,  H04J13/00

Abstract: Aspects of this disclosure relate to transmitting and/or receiving a frequency-shift keying signal including a packet that includes a preamble and a payload. The preamble has a first modulation index that has a smaller magnitude than a second modulation index of the payload. This can enhance frequency correction in a receive device that receives the packet.

公开(公告)号：US20190097680A1

公开(公告)日：2019-03-28

申请号：US15716197

申请日：2017-09-26

Applicant: Analog Devices Global Unlimited Company

Inventor： Michael W. O'Brien ,  Sudarshan Onkar

IPC: H04B1/7156 ,  H04L27/34 ,  H04L27/20 ,  H04L1/00

Abstract: Aspects of this disclosure relate to transmitting and/or receiving a frequency-shift keying signal including a packet that includes a preamble and a payload. The preamble has a first modulation index that has a smaller magnitude than a second modulation index of the payload. This can enhance frequency correction in a receive device that receives the packet.

公开(公告)号：US20180331712A1

公开(公告)日：2018-11-15

申请号：US15590903

申请日：2017-05-09

Applicant: Analog Devices Global

Inventor： Michael W. O'Brien ,  Michael F. Keaveney ,  Emil Ivanov Entchev ,  James Breslin

IPC: H04B1/403 ,  H04B17/12 ,  H04B17/21

CPC classification number: H04B1/403 ,  H04B17/11 ,  H04B17/12 ,  H04B17/14 ,  H04B17/18 ,  H04B17/21

Abstract: Aspects of this disclosure relate to active antenna calibration. In some embodiments, a local oscillator signal can be injected into the receive path for misalignment measurement and calibration of the receive path, a transmit signal from a transmit path can be coupled to a receive path, and the transmit path can be calibrated relative to the receive path.

公开(公告)号：US10128894B1

公开(公告)日：2018-11-13

申请号：US15590903

申请日：2017-05-09

Applicant: Analog Devices Global

Inventor： Michael W. O'Brien ,  Michael F. Keaveney ,  Emil Ivanov Entchev ,  James Breslin

IPC: H04B17/21 ,  H04B17/14 ,  H04B1/403 ,  H04B17/12

CPC classification number: H04B1/403 ,  H04B17/11 ,  H04B17/12 ,  H04B17/14 ,  H04B17/18 ,  H04B17/21

Abstract: Aspects of this disclosure relate to active antenna calibration. In some embodiments, a local oscillator signal can be injected into the receive path for misalignment measurement and calibration of the receive path, a transmit signal from a transmit path can be coupled to a receive path, and the transmit path can be calibrated relative to the receive path.