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:
Nov. 28, 1995
Filed:
Dec. 23, 1993
Murray S Mazer, Somerville, MA (US);
Other;
Abstract
A system to enable individual locator devices or badges developed for location of people or objects to (1) determine whether their identification transmissions are received by sensor stations and to (2) take appropriate actions when the transmissions are not received. Each badge in the system can transmit to any sensor station in the system a request for an acknowledgement within a set interval of time. Each time a sensor station receives a request for acknowledgement from a badge the sensor station sends a message of acknowledgement to the badge. If the badge does not receive an acknowledgement within the set interval of time, the badge takes appropriate action due to its occlusion from the system. If the badge receives an acknowledgement within the interval of time, it resets its internal timer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile