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:
Jun. 11, 1985
Filed:
Oct. 28, 1982
Saburo Tazaki, Matsuyama, JP;
Akifumi Ide, Kadoma, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
Method and apparatus for producing a binary information by a process comprising the steps of: dividing an input binary data sequence which has a predetermined bit cell length into blocks of a first data pattern thereby forming data blocks; converting information of said data blocks of a first data pattern into data blocks of a second data pattern; integrating accumulated charges of said converted data blocks of the second data pattern; and inverting data of a block of said second data pattern at least when said integrated amount is about to exceed a predetermined finite value in the case that an amount of accumulated charge in said second block is not zero, and producing a binary balanced output code from said second data pattern and said inverted data. By using inverted data pattern as necessary along with non-inverted data patterns it is possible to obtain a binary balanced coding wherein the minimum inversion interval is longer than a bit-cell length of the input information data and maximum inversion interval is short.