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:
Sep. 19, 1978
Filed:
Jun. 20, 1977
John S Eggenberger, Los Altos, CA (US);
Paul Hodges, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Apparatus for converting binary digital data from one form to another according to a variable word length code of fixed rate comprises word position indicating circuitry for indicating predetermined word position states of data in a data storage unit and conversion circuitry for sequentially converting a constant number of input bits at a time into the corresponding number of bits in said other form in dependence upon the contents of the data storage unit and the word position indication. The constant number of bits is less than the number of bits in the longest variable length word in the input data code form. The word position indicating circuitry either generates an updated function representing the current position of the word boundary in the data storage unit or recognizes the boundary from distinctive word ending patterns in the data storage unit.