PURPOSE: To obtain the radio transmitter which transmits and receives a voice and plural pieces of information at the same time by means of a single frequency by time-sharing an electrocardiogram signal, a speech sound signal, and medical information signal other than the electrocardiogram signal and time-compressing the respective time-shared signals into information signals respectively.
CONSTITUTION: The transmission part of a mobile station is provided with a device which time-shares, the electrocardiogram signal ECG, speed sound signal, and medical information signal (non-ECG) other than the electrocardiogram signal, time-compresses the time-shared signals into infermittent signals and modulates a carrier with their synthesized time-compressed intermittent signal, and transmitts an intermittent radio wave to a base station. The transmission part of the base station is provided with a device which detects the radio wave transmitted from the mobile station, demaltiplexes and expands the synthesize time-compressed intermittent signal, and demodulates it into the original ECG, speech sound signal, and non-ECG signal. Further, the transmission part of the base station and the reception part of the mobile station are provided with a modulating device and a demodulating device for a duplex type speech sound signal. Consequently, plural pieces of medical information is transmitted at low cost together with the speech sound.
OKA SUSUMU
SUZUKI HIDENORI
NIPPON COLIN CO LTD