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. 18, 1989
Filed:
Jan. 13, 1988
Edward Beauchemin, Marlboro, MA (US);
Bull HN Information Systems, Inc., Billerica, MA (US);
Abstract
A local area network (LAN) communications bus arrangement comprises a multiprocessor (.mu.P) bus, a direct memory access bus, and an adapter bus. The microprocessor bus permits the attachment of various computer elements while providing other integrity and communication functions to other computer elements or computer systems beyond the bus. The communications bus arrangement includes an adapter interface having up to four daughterboards. Each daughterboard has odd and even numbered connectors. The daughterboards are designed to handle control, data and address lines on the connectors. These daughterboards are the hardware means by which communications with LANs which are attached to the bus arrangement are accomplished with processes, disks tapes, memories, attached to the proprietary bus.