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:
Feb. 04, 2003
Filed:
Mar. 25, 1999
Applicant:
Inventors:
Masato Nonaka, Tokyo, JP;
Kiyoshi Fukui, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/24 ; H04J 3/07 ;
U.S. Cl.
CPC ...
H04J 3/24 ; H04J 3/07 ;
Abstract
In the conventional data communication apparatus, there has been arisen a flag emulation due to a false pattern similar to the pattern of the true flag in a frame signal including a plurality of frames. To avoid the flag emulation, the data communication apparatus according to the present invention comprises detecting circuit and a preparing circuit. The detecting circuit detects a false pattern in the bit stream while the preparing circuit prepares a frame using the portion of the bit stream other than the detected false pattern, thus enabling avoidance of the flag emulation due to the false flag.