Telephone communication system having a locator
Patent 5515426 Issued on May 7, 1996. Estimated Expiration Date: 
January 5, 2015. 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.
January 5, 2015. 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 3696384 3739329 3805227 3805265 Infrared personnel locator system Infrared telephone extension modulation system Communication system Electronic locating system for persons receiving telephone calls Personal-signaling communication system Method of providing location dependent person locator service InventorsAssigneeApplicationNo. 369184 filed on 01/05/1995US Classes:379/201.07, Called party250/338.1, Infrared responsive379/88.01, Voice activation or recognition379/142.06, Matching and retrieving stored caller ID information from a database379/198, PBX379/201.08, Calling party379/201.09, Object379/207.11, Service access code379/209.01, Repetitive call attempts (e.g., camp-on-busy, retry)379/210.01, Reserved call (e.g., return call, call back, scheduled call, reestablished call)379/210.02, Call blocking379/216.01, Abbreviated dialing or direct call (e.g., hot line)379/903, PASSWORD379/913, PERSON LOCATOR OR PERSON-SPECIFIC379/914, PROGRAMMABLE TELEPHONE COMPONENT455/73, TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER)455/456.5At system equipment (i.e., base station)ExaminersPrimary: Hofsass, JefferyAssistant: Wolinsky, Scott Attorney, Agent or FirmForeign Patent References
International ClassH04M 003/42AbstractA telephone communication system having a locator system for locating telephone users and generating location information. The telephone communication system includes a plurality of telephone functions which are user accessible for usage in conjunction with the location information. Each telephone of the system may be configured to facilitate interactive control and selection of the system features by the users.Other References
Field of SearchInfrared responsiveFerroelectric, ferromagnetic, photomagnetic types Pyroelectric type Semiconducting type With beam deflector or focussing means Reactant contains a cyano group Chalcogen or nitrogen attached indirectly to the hetero ring by nonionic bonding TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER) | |
