Abstract: Blood pressure detection apparatuses and methods for detecting a blood pressure of a user are described comprising optical sensors/detectors and a force sensor and, in some embodiments, comprising only a force sensor, measuring force applied by a finger. Blood pressure is measured by applying an increasing (or decreasing) force or pressure with a finger of the user on at least the force sensor, which, in some embodiments, may be a plurality of increasing pressure steps, each step being held within a predetermined acceptable pressure/force tolerance range for a predetermined hold time, and measuring the force applied by the finger and, in some embodiments, optically measuring the blood in a vessel in the finger relating to the applied pressure/force. Feedback (visual, haptic, sound) of the applied pressure is provided to the user.

Abstract: A pulse waveform measurement system includes an LED light source providing an incident beam having a predetermined wavelength onto a radial or other artery, samples reflected light at a predetermined sample rate, computes, and displays a pulse waveform and various parameters associated therewith. The wavelength and sample rate are set so as to provide desired data quality.