U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Payphone having master and slave modes

Patent 5222122 Issued on June 22, 1993. Estimated Expiration Date: Icon_subject March 31, 2012. 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

Telephone station coin memory and control system
Patent #: 4124774
Issued on: 11/07/1978
Inventor: Zarouni

Coin-telephone auditor
Patent #: 4599492
Issued on: 07/08/1986
Inventor: Otten

Circuit arrangement for routing signals between a master-slave pair of controlling processors and several master-slave pairs of controlled processing units
Patent #: 4654784
Issued on: 03/31/1987
Inventor: Campanini

Multidrop data concentrator communication network
Patent #: 4726017
Issued on: 02/16/1988
Inventor: Krum ,   et al.

Answer detection method and apparatus for coin telephone sets
Patent #: 4726057
Issued on: 02/16/1988
Inventor: Doerry ,   et al.

Telelink monitoring and reporting system
Patent #: 4766548
Issued on: 08/23/1988
Inventor: Cedrone ,   et al.

Selective signalling encoder/decoder for multipoint data communication networks
Patent #: 4815105
Issued on: 03/21/1989
Inventor: Bottoms ,   et al.

Remote monitoring device
Patent #: 4937862
Issued on: 06/26/1990
Inventor: Kosich

Security system network
Patent #: 4980913
Issued on: 12/25/1990
Inventor: Skret

Coin telephone message and management system
Patent #: 5007077
Issued on: 04/09/1991
Inventor: Fields, et al.

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Inventors

Assignee

Application

No. 860952 filed on 03/31/1992

US Classes:

379/32.04, Subscriber line379/102.01, Remote control379/106.01, Remote indication over telephone line (e.g., telemetry)379/143WITH CHECK OPERATED CONTROL (E.G., PAYSTATION)

Examiners

Primary: Schreyer, Stafford D.

Attorney, Agent or Firm

International Class

H04M 017/00

Abstract

A microprocessor-controlled coin telephone station includes apparatus that enables it to provide dialed telecommunications service and accept payment therefor--which is its primary function. The coin telephone station further includes apparatus for automatically dialing predetermined telephone numbers, automatically answering incoming telephone calls, and apparatus for monitoring conditions associated with its primary function in order to be a participating member of a hierarchal reporting network--which is its secondary function. In order to carry out the secondary function, the coin telephone station stores operating instructions which cause it to operate as either a Master or a Slave station within the hierarchal network. The operating instructions are downloaded into the telephone station from a Host computer over the Public Switched Telephone Network, which enables it to remotely reconfigure its hierarchal network of telephone stations to efficiently accommodate additional stations and periodic changes in the cost of long distance telephone calls.

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