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:
Nov. 12, 1991
Filed:
Jul. 17, 1990
Hiroyasu Muto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A diversity system comprising two receiving branches for receiving a radio signal including a data signal portion and a training signal portion propagating through a multipath, wherein, in each branch, a transmission property of a propagating path thereto is estimated from the training signal portion received, the transmission property comprising components significant to an equalizer and the remaining insignificant components, a blanch selectors selects, as a selected branch, a specific one of the branches providing the maximum value of a power ratio of the significant components to the insignificant components, and the equalizer equalizes the data signal portion received at the selected branch to produce an equalized signal as a resultant signal of the system. In order to reduce effect to the property estimation from the data signal portion, the branch selector selects, as the selected branches, a particular one of the branches providing the maximum value of a power sum of the significant components and the insignificant components, when another ratio of the power of the significant components and the power some is larger than a predetermined value.