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.

Date of Patent:
Jun. 15, 2010

Filed:

Dec. 21, 2005
Applicants:

Toshiyuki Saito, Yokohama, JP;

Takahiro Yoshida, Tokyo, JP;

Yasunari Shinohara, Fujisawa, JP;

Masatoshi Takahashi, Yokohama, JP;

Inventors:

Toshiyuki Saito, Yokohama, JP;

Takahiro Yoshida, Tokyo, JP;

Yasunari Shinohara, Fujisawa, JP;

Masatoshi Takahashi, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/56 (2006.01); H04B 10/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

OLT is provided with a field for storing the number of effective bits for searching ONU serial numbers, a field for storing a search start serial number and a field for storing a search end serial number, and ONU serial numbers are searched from the search start serial number to the search end serial number within the number of effective bits to automatically perform acquisition of the ONU serial number and ONU connection. An ONU automatic connection method for an ATM-PON system is provided by which an ONU serial number is searched efficiently without registering the ONU serial number from OpS to OLT.


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