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:
Jul. 15, 1997
Filed:
Jul. 07, 1995
Yukinobu Ishigaki, Miura, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A frequency converting circuit which requires no balance regulation, is usable in a wide frequency band and is suitable to be incorporated in an integrated circuit. A first input signal is supplied to an input terminal 1 and a phase division circuit 2 to produce two phase divided signals from the first input signal. A second input signal is supplied to an input terminal 4 of a switch signal generating circuit 5 which produces two switch signals from the second input signal. A first one of the two switch signals and the two phase divided signals are supplied to a first switch 3. Switch 3 selectively outputs one of the two phase divided signals responsive to the first one of the two switch signals. Another output of the first switch 3 is a signal obtained by inverting a phase of the one selected output signal of switch 3 by means of the phase invertor/amplifier 6. The inverted switch signal of invertor/amplifier 6 is applied to a switch 7 which selectively outputs one of the output signals of this switch 3 and an inverted signal output from the phase invertor/amplifier 6, responsive to the second one of the two switch signals.