PHYSIOLOGICAL INFORMATION PROCESSING SYSTEM
First Claim
1. A physiological information processing system comprising:
- a first input connector to which a first sensor to be attached to a living body is connected;
a second input connector to which a second sensor to be attached to the living body is connected;
an analog-to-digital converter configured to convert a first analog voltage signal into a first digital voltage signal, the first analog voltage signal being input from the first sensor through the first input connector;
a first voltage-to-current converter configured converts the first digital voltage signal into a first analog current signal;
a first interface connector configured to output a second analog voltage signal and the first analog current signal, the second analog voltage signal being input from the second sensor through the second input connector;
a physiological information processing apparatus comprising;
a second interface connector through which the first analog current signal and the second analog voltage signal are input to the physiological information processing apparatus;
a first signal processor to convert the first analog current signal into a first physiological information signal; and
a second signal processor to convert the second analog voltage signal into a second physiological information signal, the second physiological information signal being a digital voltage signal.
1 Assignment
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Accused Products
Abstract
First and second sensors attached to a living body are connected to first and second input connectors respectively. An analog-to-digital converter converts a first analog voltage signal input from the first sensor through the first input connector into a first digital voltage signal. A first voltage-to-current converter converts the first digital voltage signal into a first analog current signal. A first interface connector outputs a second analog voltage signal and the first analog current signal, the second analog voltage signal being input from the second sensor through the second input connector. A physiological information processing apparatus has a second interface connector through which the first analog current signal and the second analog voltage signal are input to the physiological information processing apparatus.
6 Citations
11 Claims
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1. A physiological information processing system comprising:
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a first input connector to which a first sensor to be attached to a living body is connected; a second input connector to which a second sensor to be attached to the living body is connected; an analog-to-digital converter configured to convert a first analog voltage signal into a first digital voltage signal, the first analog voltage signal being input from the first sensor through the first input connector; a first voltage-to-current converter configured converts the first digital voltage signal into a first analog current signal; a first interface connector configured to output a second analog voltage signal and the first analog current signal, the second analog voltage signal being input from the second sensor through the second input connector; a physiological information processing apparatus comprising; a second interface connector through which the first analog current signal and the second analog voltage signal are input to the physiological information processing apparatus; a first signal processor to convert the first analog current signal into a first physiological information signal; and a second signal processor to convert the second analog voltage signal into a second physiological information signal, the second physiological information signal being a digital voltage signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A physiological information processing system comprising:
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a first input terminal configured to receive a first signal, the first signal being an analog signal; a second input terminal configured to receive a second signal, the second signal being an analog signal; a switch configured to output one of the first signal and the second signal as an analog output signal; a first interface connector configured to output the analog output signal; a physiological information processing apparatus comprising; a second interface connector through which the analog output signal is input to the physiological information processing apparatus; a signal processor to convert the analog output signal into a physiological information signal; a signal selector to output a first selection signal to select one of the first signal and the second signal, the first selection signal being a digital voltage signal; a voltage-to-current converter to convert the first selection signal into an analog current signal and to output the analog current signal from the second interface connector; and a current-to-voltage converter configured to convert the analog current signal into a second selection signal, the analog current signal being input through the first interface connector, and the second selection signal being a digital voltage signal, wherein the switch selects one of the first signal and the second signal based on the second selection signal. - View Dependent Claims (9, 10)
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11. A physiological information processing system comprising:
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a first output terminal configured to be electrically connected to a first device of a sensor attached to a living body; a second output terminal configured to be electrically connected to a second device of the sensor; a physiological information processing apparatus comprising a first interface connector; a device driving section provided inside the physiological information processing apparatus to output a device driving signal from the first interface connector, the device driving signal being an analog signal that drives the first device and the second device; a second interface connector configured to receive the device driving signal; a switch configured to output the device driving signal from one of the first output terminal and the second output terminal, the device driving signal being input from the second interface connector; a signal selector provided inside the physiological information processing apparatus to output a first selection signal, the selection signal being a digital voltage signal; a voltage-to-current converter provided inside the physiological information processing apparatus to convert the first selection signal into an analog current signal and to output the analog current signal from the first interface connector; and a current-to-voltage converter configured to convert the analog current signal into a second selection signal, the analog current signal being input through the second interface connector, and the second selection signal being a digital voltage signal, wherein the switch selects one of the first output terminal and the second output terminal based on the second selection signal.
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Specification