Abstract: A device updates a value representing its current height above ground when it detects a height change. The device uses the slope calculated from collected barometric pressure data samples to calculate height change during a period when the value of the slope exceeds a predetermined value. The device also analyzes a predetermined number of barometric pressure sensor data samples preceding and succeeding a height change indicated by the slope change. The device performs an evaluation, i.e., determining the difference between an average of the preceding and succeeding samples, to determine a height change. The device may select either the slope-of-the-curve-during-the-height-change-period method or the difference-between-the-averages method based on meeting a criterion. The processor de-energizes a GPS circuit, height determination method, and sets the height above ground to zero if it detects movement. Placing the device on a charger resets the device's height value to the charger height above ground.

Abstract: A device updates a value representing its current height above ground when it detects a height change. The device uses the slope calculated from collected barometric pressure data samples to calculate height change during a period when the value of the slope exceeds a predetermined value. The device also analyzes a predetermined number of barometric pressure sensor data samples preceding and succeeding a height change indicated by the slope change. The device performs an evaluation, i.e., determining the difference between an average of the preceding and succeeding samples, to determine a height change. The device may select either the slope-of-the-curve-during-the-height-change-period method or the difference-between-the-averages method based on meeting a criterion. The processor de-energizes a GPS circuit, height determination method, and sets the height above ground to zero if it detects movement. Placing the device on a charger resets the device's height value to the charger height above ground.

Abstract: A device updates a value representing its current height above ground when it detects a height change. The device uses the slope calculated from collected barometric pressure data samples to calculate height change during a period when the value of the slope exceeds a predetermined value. The device also analyzes a predetermined number of barometric pressure sensor data samples preceding and succeeding a height change indicated by the slope change. The device performs an evaluation, i.e., determining the difference between an average of the preceding and succeeding samples, to determine a height change. The device may select either the slope-of-the-curve-during-the-height-change-period method or the difference-between-the-averages method based on meeting a criterion. The processor de-energizes a GPS circuit, height determination method, and sets the height above ground to zero if it detects movement. Placing the device on a charger resets the device's height value to the charger height above ground.

Abstract: A universally applicable fishing rod support capable of being utilized on any type of terrain and/or surface for the effective support and proper angling position of any type and size fishing rod placed thereon, wherein an angler is able to move from passive to active engagement upon the quick and unhindered removal of the fishing rod from the fishing rod support.

Abstract: A universally applicable fishing rod support capable of being utilized on any type of terrain and/or surface for the effective support and proper angling position of any type and size fishing rod placed thereon, wherein an angler is able to move from passive to active engagement upon the quick and unhindered removal of the fishing rod from the fishing rod support.