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:
Mar. 28, 2000
Filed:
Apr. 20, 1998
Hiroyasu Muto, Saitama, JP;
NEC Corporation, Tokyo, JP;
Abstract
In order to clip the levels of an incoming in-phase and quadrature signals, a comparator receives the in-phase signal, a clipping level, and an inverted clipping level. The comparator compares the level of the in-phase signal with each of the clipping level and the inverted clipping level, and generates a comparison result. A selector, in response to the comparison result, allows the in-phase signal to pass therethrough when the level of the in-phase signal exceeds the inverted clipping level and less than the clipping level, selecting the inverted clipping level when the level of the in-phase signal is less than the inverted clipping level, and selecting the clipping level when the level of the in-phase signal exceeds the clipping level. On the other hand, the level of the quadrature signal is limited using another comparator and selector in exactly the same manner as mentioned above.