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:
Sep. 21, 2004
Filed:
Dec. 04, 2000
Applicant:
Inventor:
Michael Perkins, El Dorado Hills, CA (US);
Assignee:
Share Wave, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/69 ;
U.S. Cl.
CPC ...
H04B 1/69 ;
Abstract
A spread spectrum radio receiver configurable for use in both a quadrature phase shift keying (QPSK) and a frequency shift keying (FSK) environment. The receiver may include a programmably selectable zero crossing detector unit for use when the receiver is configured for the FSK environment and/or programmable low pass filters having variable cut-off frequencies. A common local oscillator may be used regardless of whether the receiver is configured for use in the QPSK or FSK environment.