U.S. patents available from 1976 to present.
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Keyless portable cellular phone system having remote voice recognition

Patent 6167251 Issued on December 26, 2000. Estimated Expiration Date: Icon_subject June 21, 2019. 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.

Patent References

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Method and apparatus for providing telepoint to telepoint calling between pager equipped handsets
Patent #: 5202912
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Patent #: 5247700
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Method of voice activated telephone dialing
Patent #: 5452340
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Method for recognizing a spoken word in the presence of interfering speech
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Inventors

Application

No. 337050 filed on 06/21/1999

US Classes:

455/406, Billing455/405, Usage measurement455/411, Privacy, lock-out, or authentication455/558, Card control element455/563Having voice recognition or synthesization

Examiners

Primary: Maung, Nay
Assistant: Gary, Erika A.

Attorney, Agent or Firm

Foreign Patent References

  • 2262685B EP 06/13/1993
  • 2696067 FR 09/13/1992
  • 19528423 DE 08/13/1995
  • WO96/03001 WO 02/13/1996
  • WO 97/40616 WO 10/13/1997

International Class

H04M 011/00

Abstract

A keyless portable cellular phone system is provided, wherein matched sets of algorithmically generated communication units are generated, each communication unit pair defining a discrete time increment of authorized communication. One set is stored on a system server (i.e. a service provider), and the pre-paid set is available for use within a keyless portable cellular phone. The phone, normally non-activated, automatically contacts the system server upon selective activation by the user, to initiate a call (outgoing or incoming). A voice recognition system allows the user to place calls and/or receive calls. During a call, the keyless portable cellular phone periodically sends the sequential discrete airtime communication units, having unique identifiers (i.e. encryption), whereby the system server allows pre-paid authorized access to time increments of system services, such as communication, based upon the receipt of the matching, uniquely identified, sequential discrete airtime communication units. The phone typically has either an internal energy supply and storage for pre-paid communication units, or a removable airtime cartridge, typically containing an energy supply and either the ability to store or to generate a set of pre-paid single use airtime communication units.

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