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. 26, 1995
Filed:
Sep. 14, 1994
Atsushi Nakayama, Kanagawa, JP;
NEC Corporation, Tokyo, JP;
Abstract
A two-dimensional coding apparatus for two-dimensionally coding binary image data prepared by way of a FIFO memory, which reduces a time for which a host computer participates to enhance the speed of decoding processing. A two-dimensional coding circuit outputs a signal representing whether data to be read out from a memory are reference line data or coding line data, and in response to the signal and a signal read out from the memory, a circuit consisting of an invertor and a pair of AND gates outputs a read-out signal for a reference line FIFO memory and another read-out signal for a coding line FIFO memory. Consequently, the host computer need not control the memory address outputted from the two-dimensional coding circuit to fetch binary image data from the image data FIFO memory, and the FIFO memories can be used without special hardware means for the memory address control.