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:
May. 23, 1989
Filed:
Nov. 17, 1986
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a data processing apparatus for encoding or decoding binary data such as a magnetic disk or an optical disk in which a binary data sequence is converted to a binary code sequence which is suitable for a data processes. This data processing apparatus comprises: a code converter for converting the m-bit data in the binary data sequence to the n-bit code corresponding thereto; output means for outputting the n-bit code sequence corresponding to the binary data sequence; and DC-freeing means for restricting the DC component of the code sequence which is outputted from the output means. The code converter has a ROM table to store the data for code conversion and a register for converting the m-bit serial data to the parallel data and can be easily constituted by a programmable array logic.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile