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.

Date of Patent:
Dec. 28, 1999

Filed:

Jul. 02, 1997
Applicant:
Inventor:

Osamu Ichiyoshi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04N / ;
U.S. Cl.
CPC ...
455 76 ; 455 84 ; 455 86 ; 455112 ;
Abstract

A radio communication device includes a transmission carrier generating circuit, a reception intermediate-frequency local signal generating circuit), a transmission radio-frequency local signal generating circuit and a reception radio-frequency local signal generating circuit, each of which is in the form of a frequency synthesizer. The radio communication device further includes a channel connection signal control circuit which cooperatively controls the transmission carrier generating circuit and the transmission radio-frequency local signal generating circuit and cooperatively controls the reception intermediate-frequency local signal generating circuit and the reception radio-frequency local signal generating circuit.


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