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. 15, 2003
Filed:
May. 09, 2000
Tadashi Imai, Chiba, JP;
Kozo Kobayashi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A receiving apparatus and method which can prevent second order harmonic interference and beat interference in a direct orthogonal detector is disclosed. When a control signal of the high level is inputted to a control terminal, then a first high frequency switch diode is turned on and a second high frequency switch diode is turned off. In this instance, a filter circuit functions as a low-pass filter. When a control signal of a low level is inputted to the control terminal, then the first high frequency switch diode is turned off and the second high frequency switch diode is turned on. In this instance, the filter circuit functions as a high-pass filter.