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:
May. 03, 2016
Filed:
Nov. 27, 2012
Fujitsu Limited, Kawasaki-shi, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A mobile radio device capable of receiving a radio signal whose frequency band switches, includes a setting unit that when the frequency band of the radio signal is a first frequency band, sets a first threshold corresponding to the first frequency band, and that when the frequency band switches from the first frequency band to a second frequency band different from the first frequency band, sets for a given period, a third threshold that is between the first threshold and a second threshold corresponding to the second frequency band and subsequently sets the second threshold; and a determining unit that determines a travel speed of the mobile radio device, based on a comparison of a moving average obtained by temporally accumulating variations of estimates of propagation characteristics of the radio signal and averaging the accumulated variations by a moving average method using a threshold set by the setting unit.