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:
Aug. 14, 2007
Filed:
Oct. 21, 2002
Brig Barnum Elliott, Arlington, MA (US);
Jerry D. Burchfiel, Waltham, MA (US);
Brig Barnum Elliott, Arlington, MA (US);
Jerry D. Burchfiel, Waltham, MA (US);
BBN Technologies Corp., Cambridge, MA (US);
Abstract
An ultra-wide band (UWB) radio frequency (RF) receiving device () includes a first receiver () that receives UWB RF signals, a second receiver () that receives an external cue, and a processing unit (). The second receiver () receives an external cue that includes one of a television blanking signal, a zero-crossing of a FM radio transmission, a paging system signal, a zero-crossing of an analog voice transmission, a zero-crossing of an analog video transmission, a cellular telephony control channel signal, a cellular telephony traffic channel signal, a digital sub-band for an AM or FM radio station signal, a digital or analog signal in a short-wave-radio transmission, a digital television signal, a digital or analog signal in a land mobile radio transmission, a radio-navigation signal, a radar signal, a satellite signal, an acoustic event or signal, a magnetic event or signal, or an optical event or signal. The processing unit () synchronizes an internal clock of the UWB RF receiving device () to the external cue.