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:
Apr. 20, 1999
Filed:
Nov. 01, 1994
Applicant:
Inventors:
Fumio Hamano, Katsuta, JP;
Shigeru Oho, Hitachi, JP;
Takeshi Hirayama, Mito, JP;
Akira Hasegawa, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
375259 ; 375220 ; 34082508 ; 701 29 ; 701 33 ;
Abstract
In a data transmission system having a data processing unit (MPU) and a communication control unit (CIM) and capable of transmitting a data to a local control unit (LCU) in a half duplex mode, the data processing unit receives the data by an interruption based on an end of data reception signal supplied from the communication control unit.