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:
Oct. 31, 2006
Filed:
May. 22, 2002
Takashi Izumi, Tokyo, JP;
Taku Nagase, Tokyo, JP;
Noboru Oki, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provides a normalizing apparatus that normalizes input signals to a turbo decoder without significantly increasing a size of a circuit. An input signal buffer () obtains a sum S for N pieces of input signal data I(i). An input data averaging part () obtains an average A by dividing the sum S by the number of data N. A divider () obtains normalized data I(i)/A by dividing the input signals I(i) by the average A. A weighting part () multiplies the normalized data I(i)/A with a weighting coefficient α, which is determined based on a ratio of a number of input data and a number of output data in rate matching. As a result, the normalization is made possible. Because a signal receiving quality does not need to be determined, an increase in circuit size is inhibited.