Abstract: Apparatus and method for using head gear to sense the motion of the wearer's head and output a signal indicative of the motion. Sensors are used to detect head motion about two mutually perpendicular axes. The sensor signal is fed into a microprocessor to compute a feedback signal indicative of the deviation of the motion from a desired, pre-programmed path. The feedback signal is delivered to an indicator to alert the wearer of the head motion. The device is adaptable to monitor head motions for various athletic, sporting and safety applications.

Abstract: Apparatus and method for using head gear to sense the motion of the wearer's head and output a signal indicative of the motion. Sensors are used to detect head motion about two mutually perpendicular axes. The sensor signal is fed into a microprocessor to compute a feedback signal indicative of the deviation of the motion from a desired, pre-programmed path. The feedback signal is delivered to an indicator to alert the wearer of the head motion. The device is adaptable to monitor head motions for various athletic, sporting and safety applications.

Abstract: The present invention is concerned with a training device which can be worn by a user to teach the correct body position when hitting a baseball comprising: an adjustable sensing mechanism fitted on the batter's helmet to sense the movement in three mutually perpendicular axes of the batter's head in relation to his shoulder during a swing; an audible sound device connected to the sensing mechanism to alert the batter when his head is not correctly positioned in relation to his shoulders during the swing; and an electrical power supply integrated with the sensing mechanism and said audible device and wherein said electrical power supply has sufficient voltage to activate the audible device.

Abstract: The present invention is concerned with a device for aiding the teaching and training techniques for hitting a baseball accommodating different initial head position and batting style, comprising: a helmet fitted with a mercury switch connected to a motor; a nulling circuit which sets the positional angle of the mercury switch, a tone generator control which activates a tone generator and notifies the batter; two magnetic switches located on each side of the helmet; and, a magnet located on the batter's shirt and a power supply.

Abstract: The present invention is concerned with a training device which can be worn by a user to teach the correct body position when hitting a baseball comprising: an adjustable sensing mechanism fitted on the batters helmet to sense the vertical movement of the batters's head in relation to his shoulder during a swing; an audible sound device connected to the sensing mechanism to alert the batter when his head is not correctly positioned in relation to his shoulders during the swing; and an electrical power supply integrated with the sensing mechanism and said audible device and wherein said electrical power supply has sufficient voltage to activate the audible device.