1
Alan C Heller: Location system adapted for use in multipath environments. Baker & Botts, June 2, 1992: US05119104 (506 worldwide citation)

A radiolocation system for multipath environments, such as for tracking objects in a semiconductor fabrication facility (FIGS. 1a-1b), includes an array of receivers (20) distributed within the tracking area, coupled to a system processor (40) over a LAN. A TAG transmitter (30) located with each obj ...


2
Alan C Heller, Brian M Evins, Robert G Karp: Method and apparatus for locating personnel and objects in response to telephone inquiries. Precision Tracking FM, Pravel Hewitt Kimball & Krieger, August 20, 1996: US05548637 (326 worldwide citation)

An automated position location system is provided which, in response to a telephone caller's inquiry and without human intervention, connects the caller directly to the telephone extension located nearest the individual or object of interest. A transmitter is attached to each individual (or object) ...


3
Alan C Heller, Christopher W Fox: Method for receiving and transmitting optical data and control information to and from remotely located receivers and transmitters in an optical locator system. Precision Tracking FM, Cox & Smith, February 7, 1995: US05387993 (321 worldwide citation)

The method for receiving and transmitting optical data and control information to and from remotely located receivers and transmitters in an optical location system. Wherein, the locator system tracks and locates the position of a main object having an attached transceiver. This transceiver has stor ...


4
Alan C Heller, Steven Springmeyer, Christopher W Fox: Sensory and control system for local area networks. Precision Tracking FM, Pravel Hewitt Kimball & Krieger, November 5, 1996: US05572195 (156 worldwide citation)

An object location, control, and tracking system is implemented using an object identifier variable-based protocol such as SNMP. Infrared sensors, touch memory ports, passive infrared sensors, and external device controllers are all accessed using object identifier variables and in this way stimuli ...


5
Alan C Heller: Method and system for locating subjects within a tracking environment. Versus Technology, Brooks & Kushman P C, November 28, 2000: US06154139 (114 worldwide citation)

A method and system utilize both the radio frequency (RF) and infrared (IR) parts of the electromagnetic spectrum to locate subjects (i.e. objects and persons) within a tracking environment. The system includes a battery-operated, microprocessor-based badge for each subject to be located. Each badge ...


6
Alan C Heller, Christopher W Fox, Philip D Olivier: Optical receiver for area location system. Precision Tracking FM, Baker & Botts, October 11, 1994: US05355222 (51 worldwide citation)

An optical location system for locating the position of a moving object in a defined area. An optical transmitter is attached to the moving object. A stationary receiver has a number of sensors for receiving a signal from the transmitter. One sensor has a field of view of the entire area. Other sens ...


7
Alan C Heller, Albert C McNamara Jr: Optical receiver for area location system. Precision Tracking FM, Baker & Botts, January 4, 1994: US05276496 (42 worldwide citation)

An optical receiver for use with an optical location system that locates a target in a defined area. A spherical lens is placed over the area. The area is divided into sections, with a sensor associated with each section. These sensors receive light transmitted through the lens, and are positioned r ...


8
Alan C Heller: Location, identification and telemetry system using strobed signals at predetermined intervals. Freshloc Technologies, Akin Gump Strauss Hauer & Feld, April 24, 2001: US06222440 (25 worldwide citation)

A tracking system is implemented according to the invention in which the identification data of a wireless transmitter is divided into multiple bursts. Instead of transmitting the entire identification in a single burst, the identification is split among bursts, so that it takes a period of time to ...


9
Alan C Heller: Systems and devices for real time health status credentialing. John Lindsay, April 11, 2017: US09618401

The technology provides an external device for estimating a core body temperature of a human subject. The wrist monitor device includes a casing sized and shaped to fit onto a wrist of a human subject. The casing has a first face and a second face. In addition there is a cavity in the casing that ho ...


10
Alan C Heller: Location system adapted for use in multipath environments. Precision Tracking FM, Akin Gump Strauss Hauer & Feld, July 25, 2000: USRE036791

A radiolocation system for multipath environments, such as for tracking objects in a semiconductor fabrication facility (FIGS. 1a-1b), includes an array of receivers (20) distributed within the tracking area, coupled to a system processor (40) over a LAN. A TAG transmitter (30) located with each obj ...