The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2015
Filed:
Feb. 16, 2012
Michael Parr, Del Mar, CA (US);
Michael Rodgers, San Diego, CA (US);
Michael Parr, Del Mar, CA (US);
Michael Rodgers, San Diego, CA (US);
Hughes Network Systems, LLC, Germantown, MD (US);
Abstract
A device is provided for use with a satellite and a receiver having a local oscillator. The satellite is traveling in a vector and transmits a signal having an expected frequency. The receiver receives a received signal having a received signal frequency. The device includes: a Doppler shift measuring portion measuring a Doppler shift D; a predetermined Doppler shift storage portion storing a predetermined received Doppler shift D; a received signal Doppler shift error calculating portion calculating a received signal Doppler shift error D; a predetermined receiver position storage portion storing a predetermined position Pof the receiver; and a receiver position estimating portion calculating an estimated receiver position Pbased on the predetermined position Pof the receiver and the received signal Doppler shift error D.