Pulse responsive device

A pulse rate meter, comprising:

• transducer means for application to a body and arranged for providing an output signal varying according to pulsations in blood flow through the body;
• means for processing said output signal for determining pulse rate;
• analog indicator means having a scale for displaying measured pulse rate;
• and,
• means for automatically recalibrating said analog indicator means in accordance with a user's resting pulse rate so that a lower end of said scale of said analog indicator means corresponds to said resting pulse rate.

A pulse responsive device for application to a body, comprising:

• a light emitter;
• light sensor means for receiving light from said light emitter after transmission through or reflection from body tissue and arranged for providing a first electrical signal having a component varying according to pulsations in blood or other fluid flow through the body tissue;
• transducer means arranged for providing a second electrical signal varying according to movements or vibrations of the body to which said transducer means is applied but substantially independent of any blood or other fluid flow pulsations to which said transducer means may be subjected;
• means for comparing said first electrical signal and said second electrical signal for providing an output signal varying as the blood or other fluid flow pulsations, but substantially independent of said movements or vibrations of said body;
• and,
• means for processing said output signal for determining pulse rate;
• analog indicator means for displaying measured pulse rate;
• data entry means for entering predetermined data;
• and,
• means for recalibrating said analog indicator means in accordance with said predetermined data entered via said data entry means, said analog indicator means including a scale-window corresponding to a training zone, and said recalibration means recalibrates said scale-window in accordance with personal data entered via said data entry means.