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:
Dec. 10, 1996
Filed:
Sep. 16, 1993
Hiroaki Odawara, Kokubunji, JP;
Tetsuji Ogawa, Hadano, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A channel processor (CHP) within a channel apparatus instructs parallel transfer of data through a plurality of channels within a channel cluster (CCL), when it reads out a LCUW. Each of the channels sequentially generates addresses of a main storage determined based on numbers of respective channels under control of a control section and a channel data controller (CDC) accesses the main storage according to the generated addresses to read out data. Those channels transfer the data in parallel to an auxiliary storage device through an optical fiber cable set. This auxiliary storage device includes a plurality of channel ports, two buffer control circuits, a buffer and a high speed storage unit. The buffer has a two-face structure, each of the faces having 2 kilo-bytes. One of the buffer control circuits receives data from the channel ports through the optical fiber cable set in the plurality of channels and selects either one of the faces of the buffer to write them therein. As soon as all the received data are written in either one of the faces of the buffer, they are read out by the other of the buffer control circuits to be written in the high speed storage unit.