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. 10, 1985
Filed:
Jun. 06, 1983
Applicant:
Inventor:
Botaro Hirosaki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375114 ; 370105 ;
Abstract
A framing system processes a digital signal having a clock period of T seconds and a frame of which is made up of an n-bit framing pattern and m-bit information, (n+m) bits long in total. This system is applicable to a situation in which the probability that a pattern common to the n-bit framing pattern appears in the m-bit information is very low. With attention paid to the special characteristics of a frame pattern, when a coincidence pulse is found at a position different from the present frame position inside a window, the frame information is immediately regarded as being lost at that instant and the system is caused into a hunting state to search a new frame position.