公开(公告)号：US20210295471A1

公开(公告)日：2021-09-23

申请号：US16825823

申请日：2020-03-20

Applicant: Raytheon Company

Inventor： Marcos Bird ,  Liam Skoyles ,  Christopher J. Beardsley

IPC: G06T3/60 ,  G06T3/40 ,  G06T3/00

Abstract: Electronically derotating a picture-in-picture video source can be used to independently derotate a secondary video source separate a primary video source. A method of electronically derotating a picture-in-picture image are described herein, the method comprising processing a first image having a first image primary axis; processing a second image having a second image primary axis; derotating the second image around the second image primary axis to align the second image primary axis substantially parallel with the first image primary axis; and displaying the first image and the second image on a display.

公开(公告)号：US20180316362A1

公开(公告)日：2018-11-01

申请号：US16014097

申请日：2018-06-21

Applicant: RAYTHEON COMPANY

Inventor： Marcos Bird ,  Brian D. Pautler

IPC: H03M1/48 ,  G01D5/20

CPC classification number: H03M1/485 ,  G01D5/204

Abstract: A resolver to digital converter is provided and includes first and second inputs to receive signals from a resolver and an output to provide an estimated angle of a rotor. The sine component signal is multiplied by the cosine of the estimated angle and the cosine component signal is multiplied by the sine of the estimated angle, and a difference between them is calculated to provide an error measurement. The estimated angle is updated by the error measurement.

公开(公告)号：US10256836B2

公开(公告)日：2019-04-09

申请号：US16014097

申请日：2018-06-21

Applicant: RAYTHEON COMPANY

Inventor： Marcos Bird ,  Brian D. Pautler

IPC: H03M1/48 ,  G01D5/20

Abstract: A resolver to digital converter is provided and includes first and second inputs to receive signals from a resolver and an output to provide an estimated angle of a rotor. The sine component signal is multiplied by the cosine of the estimated angle and the cosine component signal is multiplied by the sine of the estimated angle, and a difference between them is calculated to provide an error measurement. The estimated angle is updated by the error measurement.

公开(公告)号：US20180205391A1

公开(公告)日：2018-07-19

申请号：US15408541

申请日：2017-01-18

Applicant: RAYTHEON COMPANY

Inventor： Marcos Bird ,  Brian D. Pautler

IPC: H03M1/48 ,  G01D5/20

CPC classification number: H03M1/485 ,  G01D5/204

Abstract: A resolver to digital converter is provided and includes first and second inputs to receive signals from a resolver and an output to provide an estimated angle of a rotor. The sine component signal is multiplied by the cosine of the estimated angle and the cosine component signal is multiplied by the sine of the estimated angle, and a difference between them is calculated to provide an error measurement. The estimated angle is updated by the error measurement.

公开(公告)号：US10027344B1

公开(公告)日：2018-07-17

申请号：US15408541

申请日：2017-01-18

Applicant: RAYTHEON COMPANY

Inventor： Marcos Bird ,  Brian D. Pautler

IPC: H03M1/48 ,  G01D5/20

Abstract: A resolver to digital converter is provided and includes first and second inputs to receive signals from a resolver and an output to provide an estimated angle of a rotor. The sine component signal is multiplied by the cosine of the estimated angle and the cosine component signal is multiplied by the sine of the estimated angle, and a difference between them is calculated to provide an error measurement. The estimated angle is updated by the error measurement.