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. 07, 2000
Filed:
Aug. 26, 1997
Kerry M White, Rancho Palos Verdes, CA (US);
David T Schaaf, Los Angeles, CA (US);
Alpine Electronics, Inc., Tokyo, JP;
Abstract
A four-byte data structure for representing alphanumeric or numeric house numbers (addresses) for use in a mapping system. The data structure has the same field size as that used for representing house numbers with numeric characters. One bit of the data structure is used to determine the presence of a non-numeric character in the house number. If the bit stream defined by bit positions 30-28 is either '000' or '100' or 101' or '110' or '111', then fourteen bits represent the numeric portion preceding the alphabetic character, ten bits represent the numeric portion succeeding the alphabetic character, two bits represent leading zeroes preceding any alphabetic and numeric characters and two bits represent leading zeroes disposed after an alphabetic character and before a numeric character succeeding the alphabetic character. If the bit stream defined by bit positions 30-28 is '001', then one bit identifies whether the first character of a house number is numeric or non-numeric, thirteen bits identify the alphabetic character used in a house number, ten bits represent house numbers larger than 999 or represent characters other than the alphabetic characters, ten bits represent the numeric portion of a house number and two bits represent leading zeroes.