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. 14, 2000
Filed:
Jan. 05, 1998
Masatoshi Sekine, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A digital signal processing apparatus comprises a sensor, a multi-valued binary level signal generator, a wavelet transform section, and a post processor. The signal generator receives analog signals output from the sensor and converts them to multi-valued binary level signals. The wavelet transform section has fundamental elements and threshold devices. The fundamental elements are provided at the nodes of a tree structure. Each threshold device is designed to receive at least two multi-valued signals and to output one binary signal, it receives the coefficients of the scaling functions output from the fundamental elements provided at the same level of the tree structure, for extracting the feature of the analog signal. The output signals of the wavelet transform section, i.e., the results of the wavelet transform, are input to the post processor. The apparatus can therefore perform signal processing including wavelet transform, at high speed without using large-scale hardware.