|
PatentVote.com: Vote on your favourite invention!
|
|
 |
Title: Infrared personnel locator system
Abstract:
An infrared personnel locator system using a periodic unique infrared identification code emitted from a battery-powered transmitter unit to identify the person carrying the transmitter unit to an overhead infrared receiver as the person enters the receiver's monitoring zone. The transmitter unit identification code together with the receiver identification code is communicated to a common control unit which displays the location of all of the transmitter units. For paging, the system provides alerting units which are selectively operated in the zone closest to the person being paged. Additionally, the system controls electronic locks for restricting access of users to certain locations or equipment. A telephone interface provides system access from the telephone network.
Other info: Inventors: White, Lester L. (Indianapolis, IN) Application Number: 06/065876 Filing Date: 1979-08-13 Publication_date: 1981-06-23 Assignee: BELL TELEPHONE LABOR INC Primary Class(es): 340/825.490 379/201.070, 250/338.100, 340/525, 379/211.02 Other Classes: G07C9/00; G08B3/10; G08B3/00; G01J1/00; G01S9/56 US Patent Ref:
Other Refs: Other References: Intel Component Data Catalog, 1978; 8048/8748/8035 Single Component 8-Bit Microprocessor; pp. 10-10-10-17. The Western Electric Engr.; 7/1977; MAC-8 Microprocessor, pp. 41-47. Electronic Design, 2/1977, IR-Activated Headphone, p. 13. Electronics, 10/14/76, Audio IR Headsets Do Well in Germany, pp. 31-32. Electronics, 12/22/77, Two-Chip Set Uses Infrared Pulse to Control TVs, p. 119. G.E.-Tech. Training Man., TV 1978 Line, 7/1977, Remote/Electronic Tuning Syst., pp. 1-2, 6-9. LED Ckts. & Projects by Forrest Mims, III, 1973, Chap. 5, LED Comm. Syst., pp. 101-130. Primary Examiner: Waring, Alvin H. Assistant Examiner: Attorney: Caccuro, John A. Claims:
I claim: |
|