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:
Jun. 20, 2017
Filed:
Sep. 16, 2011
Paul Widdowson, Whitley, GB;
Mark Cund, Whitley, GB;
Paul Widdowson, Whitley, GB;
Mark Cund, Whitley, GB;
JAGUAR LAND ROVER LIMITED, Whitley, Coventry, GB;
Abstract
Embodiments of the invention provide apparatus () for detecting an erroneous measurement of a range of a target objectfrom a subject object. A transmitter transmits a signal (S) having a first frequency from the subject object () to the target object (). A detector () detects a portion of the signal (S) reflected from the target object () back to the subject object (); a controller is configured to determine the range () of the target object () from the subject object () by reference to a time of flight of the portion of the signal (S), (S) from the transmitter () to the detector (); determine the rate of change of the range () by reference to a difference between the first frequency and an apparent frequency of the reflected portion of the signal (S) detected by the detector; and provide an indication () that an erroneous measurement of range has been made if the range () increases while the rate of change of range () is negative.