초록 ▼

A physiological function assisting device 1 is embedded in the body, and is provided with a transmitter 11 and receiver 12 for communicating with an external controller 2. External controller 2 controls embedded physiological function assisting device 1 from the outside. External controller 2 is p

A physiological function assisting device 1 is embedded in the body, and is provided with a transmitter 11 and receiver 12 for communicating with an external controller 2. External controller 2 controls embedded physiological function assisting device 1 from the outside. External controller 2 is provided with a transmitter 21 and receiver 22 for communicating with physiological function assisting device 1. Transmitters 11,21 modulate the plane of polarization of laser light, and emit the result as a transmission signal. Receivers 12, 22 selectively receive light of a specific polarization state. Receivers 12,22 respectively output electric signals corresponding to the polarization state (polarization angle or ellipticity) of the received light. As a result, full duplex communications between a strongly dispersing medium like the human body and the outside is possible, while the power consumed by the internal device can be reduced.

대표청구항 ▼

What is claimed: 1. A light communication system for performing communication between a physiological function assisting device and a controlling device, the system comprising: in the physiological function assisting device, means for detecting an internal state of a living body and generating a da

What is claimed: 1. A light communication system for performing communication between a physiological function assisting device and a controlling device, the system comprising: in the physiological function assisting device, means for detecting an internal state of a living body and generating a data signal representing the detected state; a first transmitting means for transmitting light whose intensity is modulated on the basis of the detected data signal; a first receiving means for receiving and demodulating light transmitted by the controlling device to extract a control signal included in the light; in the controlling device, means for generating the control signal; a second transmitting means for transmitting light whose polarization plane is rotated according to the control signal; and a receiving means for receiving and demodulating light transmitted by the physiological function assisting device, to extract the data signal included in the light. 2. A light communication system for performing communication between a physiological function assisting device and a controlling device, the system comprising: in the physiological function assisting device, means for detecting an internal state of a living body and generating a data signal representing the detected state; a first transmitting means for transmitting light whose polarization plane is rotated according to the detected data signal; a first receiving means for receiving and demodulating light transmitted by the controlling device to extract a control signal included in the light; in the controlling device, means for generating the control signal; a second transmitting means for transmitting light whose intensity is modulated on the basis of the control signal; and a receiving means for receiving and demodulating light transmitted by the physiological function assisting device, to extract the data signal included in the light.