초록 ▼

The invention detects loft time and/or speed of a vehicle and/or person during activities of moving and jumping. A loft sensor detects leaving the ground and returning to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded lof

The invention detects loft time and/or speed of a vehicle and/or person during activities of moving and jumping. A loft sensor detects leaving the ground and returning to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. A speed sensor can detect speed for selective display to the user, and height may also be determined during airtime.

대표청구항 ▼

1. An apparatus for determining loft time of a moving vehicle off of a surface, the moving vehicle of the type which is ridden along the surface by a user of the vehicle, comprising:a loft sensor for sensing a first condition that is indicative of the moving vehicle leaving the surface, and a second

1. An apparatus for determining loft time of a moving vehicle off of a surface, the moving vehicle of the type which is ridden along the surface by a user of the vehicle, comprising:a loft sensor for sensing a first condition that is indicative of the moving vehicle leaving the surface, and a second condition indicative of the moving vehicle returning to the surface, the loft sensor being constructed and arranged so as to be substantially non-interfering with motion of the moving vehicle along the surface, wherein the loft sensor is selected from the group of (i) an accelerometer that senses a vibrational spectrum; (ii) a microphone assembly that senses a noise spectrum; (iii) a switch that is responsive to a weight of a user of the moving vehicle; (iv) a voltage-resistance sensor that generates a voltage indicative of a speed of the moving vehicle; and (v) a plurality of accelerometers connected for evaluating a speed of the moving vehicle and; a microprocessor subsystem for determining a loft time that is based on the first and second conditions, wherein the microprocessor subsystem comprises means for interpreting data from the loft sensor to determine the loft time from a time difference between the first and second conditions.