Apparatus and method for measuring biological information

A method for measuring biological information, the method comprising:

• receiving an input for selecting each of a body fat measurement mode, a pulse measurement mode and a blood vessel aging degree measurement mode;
• radiating infrared rays having a single wavelength to a particular portion of a user's body, and measuring an infrared absorbance of the user's body by analyzing a reflected amount of the radiated infrared rays;
• calculating each of a body fat value, a pulse value and a blood vessel aging degree value based on the measured infrared absorbance and pre-set user biological information according to the selected measurement mode;
• detecting and converting a current signal generated by the radiated infrared rays into a voltage signal;
• filtering radio frequency (RF) optical noise included in the voltage signal by low-pass-filtering;
• amplifying the filtered voltage signal;
• filtering direct current (DC) noise generated by a power source by high-pass-filtering;
• and
• displaying at least one of the calculated body fat value, the pulse value and the blood vessel aging degree value,
• wherein the single wavelength is the same in the body fat measurement mode, the pulse measurement mode and the blood vessel aging degree measurement mode.

A mobile terminal comprising:

• a keypad configured to receive an input from a user for selecting each of a body fat measurement mode, a pulse measurement mode and a blood vessel aging degree measurement mode;
• a memory configured to store biological information of the user;
• an infrared ray transmission and reception unit configured to radiate infrared rays having a single wavelength, and measure an infrared absorbance of a certain portion of the user's body by analyzing an amount of infrared rays reflected therefrom;
• a controller configured to calculate each of a body fat value, a pulse value and a blood vessel aging degree value based on the measured infrared absorbance and biological information according to the measurement mode selected by the user;
• a voice conversion unit configured to convert at least one of the calculated body fat value, the pulse value and the blood vessel aging degree value into a voice signal and outputting the voice signal;
• and
• a display unit configured to display at least one of the calculated body fat value, the pulse value and the blood vessel aging degree value,
• wherein the single wavelength is the same in the body fat measurement mode, the pulse measurement mode and the blood vessel aging degree measurement mode.

A remote controller, comprising:

• a keypad configured to receive an input from a user for selecting each of a body fat measurement mode, a pulse measurement mode and a blood vessel aging degree measurement mode;
• a memory configured to store biological information of the user;
• an infrared ray transmission and reception unit configured to radiate infrared rays having a single wavelength, and measure an infrared absorbance value of a certain portion of the user's body by analyzing an amount of the radiated infrared rays reflected therefrom;
• a microcomputer configured to calculate each of a body fat value, a pulse value and a blood vessel aging degree value based on the measured infrared absorbance value and biological information according to the measurement mode selected by the user;
• a local area communication unit configured to transmit at least one of the calculated body fat value, the pulse value and the blood vessel aging degree value to an external electronic device having a display unit,
• wherein the single wavelength is the same in the body fat measurement mode, the pulse measurement mode and the blood vessel aging degree measurement mode.