US Patent 7233566 Five-by-three wavelet transform apparatus

Patent 7233566 was granted and assigned to Sony on June, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Sony

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

72335660

Patent Inventor Names

Keigo Hashirano0

Seigo Fukushima0

Date of Patent

June 19, 2007

Patent Application Number

103746330

Date Filed

February 26, 2003

Patent Primary Examiner

‌

Duc Ho

Patent abstract

In a 5×3 wavelet transform apparatus, a function-A module (11) calculates equations A1 and A2, a function-B module (12) calculates equations B1 and B2, function-C0 module (13) calculates an equation C0, and a function-C1 module (14) calculates an equation C1. Selectors have terminals thereof set to “1” for a forward transform, and to “0” for an inverse transform. The equations A1 and B1 are applied for reversible transform, and A2 and B2 are applied for irreversible transform. The aforementioned equations are as follows:Aout=RoundOff {(Ain0+Ain1+0×2000)>>2}. A1Aout=0.25*(Ain0+Ain1). A2Bout=RoundOff(Bin0+Bin1). B1Bout=0.5*(Bin0+Bin1). B2C0out=C0in0+C1in1. C0C1out=C0in0−C1in1. C1.