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:
Apr. 09, 2002
Filed:
Dec. 04, 1998
Edgar Herbert Callaway, Jr., Boca Raton, FL (US);
Scott Robert Humphreys, Boynton Beach, FL (US);
Keith Edward Jackoski, Wellington, FL (US);
Other;
Abstract
A selective call radio ( ) includes receiver ( ). The receiver in turn includes an antenna ( ) for receiving a radio signal having a first operating frequency, an amplifier( ) coupled thereto for generating an amplified signal; and a frequency translation circuit ( ). The frequency translation circuit includes a selectivity filter ( ) and an integrated frequency conversion circuit ( ). The selectivity is coupled to the amplified signal for generating a filtered signal. The integrated frequency conversion circuit is coupled to the filtered signal and is incorporated into at least one IC (integrated circuit). The integrated frequency conversion circuit includes an oscillator ( ), a divider ( ), and a mixer ( ). A first input of the mixer is coupled to the filtered signal generated by the selectivity filter. The divider is coupled to the oscillator and its output is coupled to a second input of the mixer. The mixer generates an output signal having a second operating frequency, the second operating frequency having a frequency value different from the frequency value of the first operating frequency of the radio signal.