1
Theresa C Y Wang, Steven H Moritz: Mobile unit tracking system. Motorola, Gregory J Gorrie, Robert M Handy, November 15, 1994: US05365451 (262 worldwide citation)

A communication network keeps track of the locations of mobile units which utilize the network. On powering up, the mobile units determine their current locations using signals broadcast, for example, by overhead satellites. They then send data communication messages to the network describing their ...


2
Robert E Penny Jr, Thomas J Mihm Jr: Position locating transceiver. Motorola, Robert M Handy, Phillip E Hall, May 9, 1995: US05414432 (237 worldwide citation)

A hand-portable position locating radio has a geolocation (e.g. GPS) receiver providing local position and timing information from geolocation means (e.g. GPS or IRIDIUM satellites) and a local transceiver for sending local position and other information to a communication system (e.g., an IRIDIUM o ...


3
Durrell W Hillis: Dynamic pricing method and apparatus for communication systems. Motorola, Robert M Handy, Gregory J Gorrie, Frederick M Fliegel, April 12, 1994: US05303297 (232 worldwide citation)

A communication system service billing arrangement is described that adapts to system loading in realtime. As system loading varies, one or more individual subscribers units (ISU) of a communication system are provided with realtime information on the current cost of the communication service. The s ...


4
Martin Kalfus, Robert A Gooch: Self-centering electrode for power devices. Motorola, Robert M Handy, June 19, 1990: US04935803 (212 worldwide citation)

An improved means and method for forming leads to a power device is provided by use of a one-piece leadframe on which the die is mounted and a separate connecting clip between the leadframe and the bonding pad on the semiconductor die. The leadframe has an alignment dimple or groove for receiving a ...


5
Mark A Wood: Project management system with automated schedule and cost integration. Motorola, Gregory J Gorrie, Robert M Handy, January 10, 1995: US05381332 (185 worldwide citation)

A bridge is provided between a conventional network scheduling tool and a conventional performance measurement tool which automatically ties the two together. The combination is adapted to operate within an organization having numerous resources that are used to accomplish projects. Data required by ...


6
Thomas J Mihm Jr: Authentication system. Motorola, Robert M Handy, September 28, 1993: US05249230 (158 worldwide citation)

An environment which includes a communications network, user terminals, and an authentication center provides communication services only to legitimate subscribers. The center receives an equipment ID for each terminal and uses a secret key to encrypt the equipment ID with a user ID and an error det ...


7
Kristine P Maine, Keith A Olds, Stanley W Attwood: Location system and method with acquisition of accurate location parameters. Motorola, Philip E Hall, Robert M Handy, Kevin K Johanson, May 7, 1996: US05515062 (128 worldwide citation)

A location system relies upon a non-coherent, FDM/TDM communication scheme to measure location parameters. A locator unit moves relative to the locatable unit. A series of messages are communicated between the locator unit and the locatable unit. Through feedback provided from the locator unit to th ...


8
Dennis P Diekelman: Satellite cellular network resource management method and apparatus. Motorola, Sherry J Whitney, Robert M Handy, December 31, 1996: US05590395 (121 worldwide citation)

A method for managing resource usage within a cellular communications system (10) having at least one satellite (12) and, capable of communicating with the satellite(s) (12), at least one controlling station (28) and multiple ground terminals (26). The controlling station (28) predicts (372, 380) sy ...


9
Douglas A Hardy, Leslie K Lewis, Barry N Altschuler: Method for algorithm independent cryptographic key management. Motorola, Frederick M Fliegel, Robert M Handy, January 12, 1993: US05179591 (115 worldwide citation)

An apparatus for secure communications contains a controller for automatically selecting one of several data ciphering means utilizing one of a plurality of ciphering algorithms common to transmitting and receiving terminals. A transmitting means for transmitting encrypted data, and a receiving mean ...


10
Warren L Seely, Joseph Staudinger, John M Golio: Active image separation mixer. Motorola, Robert M Handy, April 25, 1995: US05410743 (110 worldwide citation)

A mixer separates IF components IF1, IF2 of the same frequency which are images of different frequency RF signals RF1, RF2 beating with a given LO signal. The LO signal is applied to a FET active power divider and applied to the drains of a pair of balanced FET mixing elements. The FETs for the acti ...