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:
Jul. 31, 2001

Filed:

Sep. 28, 1998
Applicant:
Inventors:

Takaaki Maegawa, Sakurai, JP;

Hiroyuki Nakamura, Neyagawa, JP;

Makoto Sakakura, Uji, JP;

Hiroaki Kosugi, Hirakata, JP;

Junichi Takada, Kamakura, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 ;
U.S. Cl.
CPC ...
H04B 1/38 ;
Abstract

A multi-mode wireless system having a modulator (,) for modulating two system signals (low frequency signals for the GSM system and high frequency signals for the DCS1800 system), a first local oscillator (,) for oscillating a signal of a predetermined frequency, a n-divider (,) for dividing a signal from the first local oscillator by a factor of n, a high frequency mixer (,) for converting a signal to a high frequency side output (,) according to a signal output from the first local oscillator (,) and a signal output from the modulator (,), and a low frequency mixer (,) for outputting a signal to a low frequency mixer (,) according to an n-divided signal and a signal from the modulator (,).


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