Lester S White

US Patent:

45785406, Mar 25, 1986

Filed:

Dec 20, 1982

Appl. No.:

6/451235

Inventors:

Kevin E. Borg - Indianapolis IN
William P. Halas - Carmel IN
Hans G. Mattes - Indianapolis IN
Paul M. McLear - Carmel IN
Lester L. White - Indianapolis IN

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04M 1100
H04M 100

US Classification:

179 2A

Abstract:

A telecommunications system is disclosed which is user programmable permitting inter and intrapremises communications from existent two-wire telephone extension sets at a customer's premises. The system may be functionally described as a telephone call interceptor comprising a number of building blocks for providing a plurality of features which the existent telephone extension sets may not be capable of by themselves. A data processor (110) receives data input from an incoming ringing signal detector (140), a telephone signal receiver (115), a dial tone detector (160) or from an associated user-activatable data input device (117). Responsive to the data input, the data processor provides output through a speech processor (150), a telephone signal generator (116), a ring generator (119) or through an associated data output device (113) such as a loudspeaker. A peripheral device interface (114) connects data processor (110) to security, utility meter, fire detection, energy control, appliance and other devices.

US Patent:

42753856, Jun 23, 1981

Filed:

Aug 13, 1979

Appl. No.:

6/065876

Inventors:

Lester L. White - Indianapolis IN

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

G01J 100
G01S 956

US Classification:

340312

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.