公开(公告)号：US20220021514A1

公开(公告)日：2022-01-20

申请号：US17488364

申请日：2021-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wenxun QIU ,  Tomas MOTOS ,  Marius MOE

IPC: H04L7/04 ,  H04L27/34 ,  H04L27/38 ,  H04B1/7073

Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

公开(公告)号：US20210006388A1

公开(公告)日：2021-01-07

申请号：US17028328

申请日：2020-09-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wenxun QIU ,  Tomas MOTOS ,  Marius MOE

IPC: H04L7/04 ,  H04L27/34 ,  H04L27/38 ,  H04B1/7073

Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

公开(公告)号：US20200186324A1

公开(公告)日：2020-06-11

申请号：US16210420

申请日：2018-12-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Wenxun QIU ,  Tomas MOTOS ,  Marius MOE

IPC: H04L7/04 ,  H04L27/34 ,  H04B1/7073 ,  H04L27/38

Abstract: A technique of separating a sequence of modulation shift keying (MSK) symbols into a first portion and a second portion and separately comparing the first portion of the sequence of MSK symbols and the second portion of the sequence of MSK symbols against a first portion of a reference sequence of MSK symbols and a second portion of the reference sequence of MSK symbols allows a low complexity detection of a start field delimiter in a wireless communication packet.

公开(公告)号：US20170324595A1

公开(公告)日：2017-11-09

申请号：US15656039

申请日：2017-07-21

Applicant: Texas Instruments Incorporated

Inventor： Wenxun QIU ,  Timothy Mark SCHMIDL

IPC: H04L27/16 ,  H04L27/14

CPC classification number: H04L27/16 ,  H04L27/14

Abstract: Disclosed embodiments include a receiver having an input that receives a frequency shift key (FSK) signal having a preamble comprising preamble symbols, a phase compensator that applies a compensation vector to one of first and second samples of a first preamble symbol, wherein applying the compensation vector to the one of the first and second samples produces a compensated sample, a demodulator that determines a phase offset between the compensated sample and the other one of the first and second samples of the first preamble symbol, and a frequency offset mapper that determines a frequency offset based at least upon the phase offset. The receiver applies the frequency offset to the FSK signal.