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. 20, 1978
Filed:
Sep. 28, 1976
Keiji Namimoto, Yokohama, JA;
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JA;
Abstract
A micro-computer system includes a memory device, a plurality of memory utilization devices such as processors, a bus connected between the memory device and the memory utilization devices for address information and data transfer therebetween, bus control lines, and an access arbitrator for preventing simultaneous accesses of memory utilization devices to the memory device. The bus control lines include two lines for transferring address transfer and write/read control information from one of the memory utilization devices to the memory device and one line for coupling an access acknowledge signal from the memory device to one of the memory utilization devices. The access arbitrator couples the access acknowledge signal to one of the memory utilization devices issuing an access request signal and disables another memory utilization device to issue the address transfer and read/write control information on the two bus control lines.