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:
Jun. 06, 1989
Filed:
Dec. 15, 1987
Isao Wachi, Hitachi, JP;
Kinji Mori, Yokohama, JP;
Yasuo Suzuki, Ebina, JP;
Masayuki Orimo, Kawasaki, JP;
Katsumi Kawano, Fuchu, JP;
Minoru Koizumi, Yokohama, JP;
Kozo Nakai, Katsuta, JP;
Hirokazu Kasashima, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a system which includes of subsystems, and a transmission medium for coupling them, and in which a token is sent to the transmission medium, whereby the transmission medium is occupied; a transmission control method characterized, at least, in that each of the certain subsystems appends a code indicative of a function of certain data to the token and sends the resulting data to the medium, and that the subsystem receiving the data refers to the code indicative of the function of the data, thereby to independently judge whether or not the data is to be accepted into the own subsystem.