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:
May. 22, 1979
Filed:
Sep. 26, 1977
Charles L Seitz, San Luis Rey, CA (US);
Marshall M Parker, San Diego, CA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
An I/O data interface provides an access mechanism without requiring additional lines on the bus for device address presentation for the request of access. Each peripheral device can detect an invitation-to-request access signal and in response thereto, to supply its own device address on the bus in a serial manner with any other device requesting access. Respective device addresses are assigned to respective peripheral devices in accordance with their priority, the higher priority devices having a higher address and the lower priority devices having a lower address. If any address bit of a particular device is lower than an address bit on the bus, the device ceases to supply its address bits with the result that only the requesting device having the larger device address will be selected for communication over the I/O bus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile