Biological information monitoring apparatus

Title: Biological information monitoring apparatus

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20080234568, Biological information monitoring apparatus.

1. A biological information monitoring apparatus for monitoring biological information, comprising: a generation unit for generating an electromagnetic wave including a frequency band between 300 GHz and 30 THz; a detection unit for detecting the electromagnetic wave reflected by a living body; a delay unit for delaying a timing of detection by said detection unit of the electromagnetic wave; a computation unit for acquiring a vibration waveform of the electromagnetic wave detected by said detection unit by using the timing delayed by said delay unit; and a filter unit for separating a signal from the vibration waveform based on a vibration frequency of the vibration waveform, said computation unit acquiring a signal concerning biological information from the signal separated by said filter unit.

2. The apparatus according to claim 1, wherein said biological information is pulse rate, pulse wave, respiration, electrocardiographic wave, blood pressure, or information obtained by analyzing any of them.

3. The apparatus according to claim 1, wherein said electromagnetic wave is a short pulse that is generated repeatedly and has a half width of not greater than 33 psec.

4. The apparatus according to claim 1, further comprising a memory unit for storing in advance a signal concerning biological information for each vibration frequency, and the signal acquired by said computation unit is compared with the signal stored in the memory unit to judge physical or emotional conditions of a living body.

5. The apparatus according to claim 4, wherein the judged physical conditions are displayed by characters or output by voice sounds.

6. The apparatus according to claim 4, wherein the judged emotional conditions are fed back to a machine or an electronic appliance and utilized as control signal for the interface for operating said machine or said electronic appliance, whichever is appropriate.

7. The apparatus according to claim 1, further having a host device containing said apparatus, said host device being an object where people remain for a certain period of time and biological information is remotely acquired at said object.

8. The apparatus according to claim 7, wherein said host device is selected from the group consisting of a wash basin, a toilet and a chair.

9. The apparatus according to claim 1, further comprising a semiconductor mode-locked laser for generating a laser beam, and a substrate, wherein said generation unit is a photoconductive switching element for generating an electromagnetic wave pulse when irradiated with the laser beam, wherein said detection unit is a photoconductive switching element for detecting the electromagnetic wave pulse reflected by a living body, and wherein said semiconductor mode-locked laser, said generation unit, said detection unit, and said delay unit are devices integrated on said substrate.

10. The apparatus according to claim 9, wherein said devices integrated on said substrate are provided with an antenna for transmitting or receiving an electromagnetic wave pulse.

11. The apparatus according to claim 9, further comprising a memory unit for storing in advance a signal concerning biological information for each vibration frequency, and wherein the signal acquired by said computation means is compared with the signal stored in the memory unit to judge physical or emotional conditions of a living body.

12. The apparatus according to claim 9, further comprising a memory unit for storing in advance a judgment line which is a relationship between a blood pressure and a pulse wave propagation time of a living body, and wherein said computation unit computationally determines a pulse wave propagation time from the signal concerning biological information acquired by said devices and acquires the blood pressure by using the judgment line.

13. A biological information monitoring apparatus for monitoring biological information comprising: a semiconductor mode-locked laser for generating a laser beam; a generator photoconductive switching element for generating an electromagnetic wave pulse including a frequency band between 300 GHz and 30 THz when irradiated with the laser beam; a detector photoconductive switching element for detecting the electromagnetic wave pulse reflected by a living body; a delay unit for delaying a timing of detection by said detector photoconductive switching element of the electromagnetic wave pulse; a computation unit for acquiring a vibration waveform of the electromagnetic wave pulse detected by said detector photoconductive switching element by using the timing delayed by said delay unit; a filter unit for separating a signal from the vibration waveform based on a vibration frequency of the vibration waveform; and a substrate, said semiconductor mode-locked laser, said generator and detector photoconductive elements, and said delay unit being devices integrated on said substrate, and said computation unit acquiring a signal concerning biological information from the signal separated by said filter unit.

Brief Patent Description - Full Patent Description - Patent Claims

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