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Thomas H Walters, Jay Dee Krull, Ronald B Kabler: Apparatus, systems and methods for navigation data transfer between portable devices. Garmin, Devon A Rolf, November 9, 2004: US06816782 (250 worldwide citation)

Apparatus, systems, and methods for navigation data transfer between portable devices are provided. A handheld electronic device is provided which includes a processor and a memory adapted to communicate with the processor. The memory is adapted to store navigation related data. The navigation relat ...


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Thomas H Walters, Cliff A Pemble, Min H Kao: Systems and methods with integrated GPS and dead reckoning capabilities. Garmin, Devon A Rolf, October 5, 2004: US06801855 (157 worldwide citation)

Systems and methods are provided for complementary navigation devices with various integrated positioning functionality. The navigation method includes providing a first navigation device. The first navigation device includes a triangulation positioning functionality. The method includes providing a ...


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Thomas H Walters, Cliff A Pemble, Min H Kao: Portable navigation device with integrated GPS and dead reckoning capabilities. Garmin, Devon A Rolf, February 1, 2005: US06850844 (151 worldwide citation)

Apparatus, systems and methods are provided for portable navigation devices with various integrated positioning functionality. The apparatus includes a portable electronic device having a processor in communication with a memory. The memory is adapted to store navigation related data. The navigation ...


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Lawrence W Beason, Thomas H Walters, Ronald B Kabler: Combined global positioning system receiver and radio. Gamin Corporation, Devon A Rolf, April 16, 2002: US06373430 (95 worldwide citation)

A portable GPS/radio unit communicates over a wireless radio network with at least one other unit which is transmitting radio signals over the network indicative of that unit's location. The GPS/radio unit comprises a GPS receiver for receiving satellite signals from a plurality of satellites, ...


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Thomas H Walters: Navigation device and method for selectively displaying thoroughfare names. Garmin Corporation, Shook Hardy & Bacon, February 13, 2001: US06188956 (70 worldwide citation)

A navigation device for selectively displaying thoroughfare names utilizes a processor, memory, display, input and antenna/receiver. The navigation device, incorporated within a vehicle receives GPS satellite signals from a plurality of satellites orbiting the earth and calculates its position, velo ...


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Thomas H Walters, Michael R Wiegers, Robert M Kalis: Navigation apparatus for coupling with an expansion slot of a portable, handheld computing device. Garmin, Devon A Rolf, November 29, 2005: US06970130 (68 worldwide citation)

A navigation apparatus (10) configured for removably coupling with and providing navigational capabilities to a portable, handheld computing device (12). The navigation apparatus (10) includes a navigation receiver (26) for receiving navigation signals from a plurality of sources; a processor (24) c ...


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Jay Dee Krull, Michael Childs, Scott M Burgett, Thomas H Walters: Portable navigation system and device with audible turn instructions. Garmin, David L Terrell, June 13, 2006: US07062378 (45 worldwide citation)

Systems, devices and methods are provided for an improved navigational route planning device which provides more understandable, accurate and timely route calculation capabilities. The navigational aid device with route calculation capabilities includes a processor connected to a memory. The memory ...


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Christopher J Hanshew, Thomas H Walters: Portable navigation device with instant on configuration on navigational display. Garmin, Devon A Rolf, September 21, 2004: US06795770 (44 worldwide citation)

A multi-function, portable, electronic device includes a housing, a processor located within the housing and a memory in communication with the processor. The electronic device includes a display in communication with the processor and positioned on a surface of the housing. The electronic device in ...