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:
Dec. 20, 1988
Filed:
Dec. 17, 1985
Masao Watari, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
On pattern matching an input pattern arranged along a first time axis to each concatenation of patterns selected from reference patterns and arranged along a second time axis with feature vectors of the input pattern and the concatenation placed at a common frame period, a dynamic programming algorithm is used by classifying the reference patterns into classes in compliance with reference pattern lengths and by giving variable block widths to slant parallelogrammic blocks of a common block slope. The variable widths should be decided for the respective classes. Preferably, a k-th class comprises a reference pattern of a reference pattern length which is not shorter than .beta.kW and is shorter then .beta.(k+1)W, where .beta. represents the block slope and W, a fundamental block width determined by the block slope under a minimum of the reference pattern lengths. In this event, the variable block width is equal to kW. The algorithm is carried out by scaling the first time axis, not by the frame period, but by block numbers assigned to slant parallelogrammic blocks having the fundamental width in common and by checking whether or not each block number is an integral multiple of k.