Dynamic callback technique

Patent 5157716 Issued on October 20, 1992. Estimated Expiration Date:

August 15, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3777278

3878322

3878512

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Inventors

Assignee

Scientific-Atlanta, Inc.

Application

No. 567612 filed on 08/15/1990

US Classes:

379/92.01, Polling340/825.52, Addressing725/1, BILLING IN VIDEO DISTRIBUTION SYSTEM725/104, Pay-per-view725/122Return path via telephone network

Examiners

Primary: Dwyer, James L.
Assistant: Chan, Wing F.

Attorney, Agent or Firm

Marvin; William A.

Foreign Patent References

WO85/03830 WO. 08/12/1985
8000209 WO 02/12/1980

International Classes

H04M 011/00
H04N 017/00

Abstract

A dynamic global callback technique which is capable of maintaining a manageable number of incoming calls to a central location from a plurality of remote units. A plurality of remote units are prompted to initiate callback attempts to a central location during a given callback period. The number of successful callback attempts from the remote units to the central location is monitored. The callback period if dynamically adjusted so as to cause the monitored number of successful callback attempts to approximately equal the number of successful callback attempts capable of being handled by the central location without overloading the telephone network.