Garmin Corporation

Garmin Switzerland Gmbh

Stephen M Davis

Jay Dee Krull

Michael R Wiegers

Joshua C Reeson

Lawrence W Beason

Aaron J Lindh

Joe Ryan Dejmal

Jeremy J Ell

Ronald Thomas Chinnery

Emily N McKahan

A wearable electronic device comprises a housing, a pushbutton, a sensor, and a processing element. The housing includes a sealed internal cavity formed in part by a bottom wall and a side wall. The pushbutton is coupled to an outer surface of the side wall and includes a plunger configured to move in relation to the side wall when the pushbutton is pushed. The sensor is positioned in the internal cavity adjacent to an inner surface of the side wall and includes a conductive element through which an electronic signal is operable to flow. The sensor is configured to modify an electrical characteristic of the electronic signal according to a distance between the plunger and the conductive element. The processing element is configured to receive the electronic signal from the sensor and to process the electronic signal to determine when the pushbutton is pushed.

Wearable electronic device with an inductive user interface

A personal navigation device includes a GPS receiver for receiving GPS signals from a plurality of GPS satellites; a processing system coupled with the GPS receiver for determining a location of the personal navigation device as a function of the GPS signals; a display coupled with the processing system for displaying information related to the location of the personal navigation device; a housing on which the display is mounted and in which the GPS receiver and processing system are housed; and an antenna coupled with the GPS receiver for assisting in reception of the GPS signals. The antenna is fixedly positioned along a plane that is generally parallel with a plane passing through the housing.

Personal navigation device with improved antenna mounting configuration

A device and method for compensating a crystal oscillator that is not electrically compensated over its operable temperature range. A GPS receiver device stores in memory data indicative of the actual offset frequency of oscillation of the crystal over its operable temperature range. The first time the device is activated, the temperature at the crystal is sensed and data, stored in memory, indicative of the specified frequency offset of the crystal at the sensed temperature is retrieved, and used to control the receiver.backslash.decoder. When the receiver locks onto a sufficient number of satellites to calculate its two-dimensional location, the actual frequency offset of the crystal is calculated and stored in memory. Repeated use of the receiver device permits a database of actual frequency offset data of the crystal, over its operable temperature range to be stored. Subsequent uses of the device permit retrieval of this data for use in locking the receiver onto satellite signals. If such data is not available, the device uses the average offset data at the given temperature. The device further adjusts the offset data originally retrieved or computed until the receiver locks onto the desired signal.

GPS receiver device and method for calibrating a temperature

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Blue Springs, MO, United States of America

Stephen M Davis