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:
Aug. 15, 1989
Filed:
Mar. 18, 1987
Douglas A Samuelson, Reston, VA (US);
International Telesystems Corp., Herndon, VA (US);
Abstract
A method for controlling arrivals to servers, comprising: regulating arrivals, by initiating a processor generating arrivals or by re-routing or turning away arrivals; measuring durations of service; computing and updating time statistics, including mean, minimum, maximum expected and standard deviation of duration of service thereby estimating expected duration of service; measuring transit times from the point of regulating arrivals to start of service and thereby estimating expected transit times; measuring a ratio of numbers of service initiations to numbers of arrivals at the point of regulating arrivals; recording starting time of each current service; noting present time; comparing present time to starting time, and thereby determining time in progress for each service; comparing time in progress to expected duration of service, and estimating time remaining in service for each customer currently in service; comparing estimated time remaining in service to estimated transit time from the point of regulating arrivals to the start of service, determining a number of currently busy servers expected to be available by the time another arrival could reach them; measuring the number of available servers not currently serving; adding the number of currently available servers and the number of currently busy servers expected to be available and thereby computing total number of servers expected to be available; subtracting the number of arrivals currently queued awaiting service thereby producing a resultant number of servers expected to be available; and controlling a means for regulating arrivals to correspond to the resultant number of servers expected to be available.