Digital frequency display device

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United States of America

PATENT NO RE30949
SERIAL NO

06119664

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Abstract

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A digital frequency display device for digitally displaying the operating frequency of a communication apparatus comprising a reference frequency oscillator, a first frequency mixer for mixing the output frequencies of a first oscillator of the communication apparatus and of the reference frequency oscillator, a second frequency mixer for mixing the output frequency of a second oscillator of the communication apparatus and the resultant frequency provided from the first frequency mixer to produce the display frequency shifted by the reference frequency, and a frequency counter for counting the output frequency from the second frequency mixer and for correcting the shifted frequency component to display the correct frequency.

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Patent Owner(s)

Patent OwnerAddress
TRIO KABUSHIKI KAISHA6-17 AOBADAI-3-CHOME A CORP OF JAPAN MEGURO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sekiguchi, Tadao Tokyo, JP 2 2

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