Patent · US Expired

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US5987100A · kind A · utility

194Cited by
14References
40Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 23, 1997
Grant dateNov 16, 1999
Priority date
Expiry dateApr 23, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W4/12
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A messaging center, connected to a communications network, processes messages intended for a subscriber. A caller sends a message to the message center in a first caller format. The message center stores the message in the first caller format, notifies the subscriber, and awaits a request for the stored message from the subscriber. In response to the message request, the message center sends the stored message to the subscriber in a first subscriber format independent of the first caller format. If the subscriber desires, the subscriber constructs a response to the message and sends it to the message center in a second subscriber format independent of the first caller format and the first subscriber format. The message center stores the response in the second subscriber format and sends the stored response to the caller in a second caller format independent of the first caller format and the first and second subscriber formats.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.