US 2006/0222224 A1Published application

Biological information measuring apparatus and method for controlling the apparatus

AssigneeSpectratech Inc.

InventorMitsuo Ohashi

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Abstract

A biological information measuring apparatus includes a plurality of light emission sections, a plurality of light detection sections, and a control section. Each light emission section injects, into a living organism, a spectrum-modulated light beam having a specific wavelength. The control section acquires a spread code sequence employed by each of the light emission sections for spread spectrum modulation, and supplies the spread code sequence to the light detection sections. By use of the spread code sequence, each light detection section selectively receives a specific reflected light beam having the spread code sequence, which is selected from among the light beams which have been emitted from the light emission sections and reflected in the living organism. Subsequently, each light detection section despreads an electrical signal corresponding to the thus-received reflected light beam, and outputs a detection signal corresponding to the intensity of the reflected light beam.

Claims11

Dependent claims

A biological information measuring apparatus comprising:

a plurality of light emission means, each adapted for modulating a predetermined primary modulated signal by spread spectrum modulation to thereby generate a secondary modulated signal, and for injecting a light beam into a living organism on the basis of the secondary modulated signal;
light detection means for receiving the light beams which have been emitted from the plurality of light emission means and transmitted through the living organism, for obtaining an electrical signal corresponding to the light beams through despreading, and for detecting a signal contained in the light beams on the basis of the electrical signal;
and
control means for controlling the operation of the light emission means and the light detection means, and for obtaining biological information associated with the metabolism of the living organism on the basis of the signal detected by the light detection means, wherein
the control means comprises:
spread code sequence acquisition means for acquiring, from specific light emission means selected from among the plurality of light emission means, a spread code sequence employed by the specific light emission means for spread spectrum modulation of the predetermined primary modulated signal;
and
spread code sequence supply means for supplying, to the light detection means, the spread code sequence acquired by the spread code sequence acquisition means.

5 more elements

A method for controlling a biological information measuring apparatus comprising a plurality of light emission means, each adapted for modulating a predetermined primary modulated signal by spread spectrum modulation to thereby generate a secondary modulated signal, and for injecting a light beam into a living organism on the basis of the secondary modulated signal;

light detection means for receiving the light beams which have been emitted from the plurality of light emission means and transmitted through the living organism, for obtaining an electrical signal corresponding to the light beams through despreading, and for detecting a signal contained in the light beams on the basis of the electrical signal;
and control means for controlling the operation of the light emission means and the light detection means, and for obtaining biological information associated with the metabolism of the living organism on the basis of the signal detected by the light detection means, the method comprising controlling the control means to select specific light emission means from among the plurality of light emission means, to acquire a spread code sequence employed by the thus-selected specific light emission means for spread spectrum modulation of the predetermined primary modulated signal, and to supply the thus-acquired spread code sequence to the light detection means.

Dependencies are inferred from the claim text.