Electrocardiograph system
First Claim
Patent Images
1. An electrocadiograph system comprising:
- a portable electrocardiograph for measuring and storing an electrocardiograph waveform;
`a recorder having electric power and positioning means for reading said electrocardiograph waveform stored in said portable electrocardiograph;
signal transfer means for transferring electrical signals between said portable electrocardiograph and said recorder, said signal transfer means including a first electro-magnetic coupling having first coils for said portable electrocardiograph and said recorder; and
power transfer means including a second electro-magnetic coupling having second coils for said portable electrocardiograph and said recorder, said power transfer means transferring electric power from said recorder to said portable electrocadiograph, said power and positioning means positioning first and second coils of said portable electrocardiograph so that each coil of said portable electrocardiograph faces a corresponding coil of said recorder.
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Abstract
An electrocardiograph system which enables safe data transfer with high reliability between a portable electrocardiograph and a recorder, such as a printer, and in which an effect of leakage magnetism is taken into consideration. In the electrocardiograph system, electrical signals and/or electric power are transferred between the electrocardiograph and the recorder by electro-magnetic coupling therebetween using independent coils. The electrocardiograph system is further provided with a device for rejecting noise of an electric power signal from the electrical signals or noise of an electrical power signal and a clock signal from a data signal.
31 Citations
7 Claims
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1. An electrocadiograph system comprising:
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a portable electrocardiograph for measuring and storing an electrocardiograph waveform;
`a recorder having electric power and positioning means for reading said electrocardiograph waveform stored in said portable electrocardiograph;signal transfer means for transferring electrical signals between said portable electrocardiograph and said recorder, said signal transfer means including a first electro-magnetic coupling having first coils for said portable electrocardiograph and said recorder; and power transfer means including a second electro-magnetic coupling having second coils for said portable electrocardiograph and said recorder, said power transfer means transferring electric power from said recorder to said portable electrocadiograph, said power and positioning means positioning first and second coils of said portable electrocardiograph so that each coil of said portable electrocardiograph faces a corresponding coil of said recorder. - View Dependent Claims (2)
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3. An electrocardiograph system comprising:
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an electrocardiograph for measuring and storing an electrocardiograph waveform of a subject; a recorder for reading and outputting said electrocadiographic waveform stored in said electrocardiograph; transfer means for separately transferring electric power and electrical signals between said electrocardiograph and said recorder, said transfer means including first and second independent electro-magnetic couplings; and noise removing means for removing at least electric power noise from said electrical signals, said noise removing means further comprising means for detecting a noise and means for adding the detected noise to the electrical signals with opposite phase so that the detected noise offsets the noise in the electric signals. - View Dependent Claims (4)
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5. An electrocardiograph system comprising:
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an electrocardiograph for measuring and storing an electrocardiograph waveform of a subject; a recorder for reading and outputting said electrocardiograph waveform stored in said electrocardiograph; transfer means having independent electro-magnetic couplings for separately transferring electric power and electrical signals between said electrocardiograph and said recorder; and noise removing means for removing at least electric power noise from said electrical signals, said noise removing means including metal which is arranged to surround at least a portion of said transfer means to reduce a mixture of leakage magnetism into the electric signals transferred by said transfer means. - View Dependent Claims (6)
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7. An electrocardiograph system comprising:
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an electrocardiograph for measuring an electrocardiograph waveform; a recorder having positioning means for reading and outputting said electrocardiograph waveform stored in said electrocardiograph; clock transfer means for transferring a clock signal in one direction between said electrocardiograph and said recorder, said clock transfer means including a first electro-magnetic coupling having a first independent coil; and data transfer means for transferring data signals bidirectionally between said electrocardiograph and said record, said data transfer means including a second electro-magnetic coupling having another independent coil; and positioning means for positioning coils of said portable electrocardiograph so that each coil of said portable electrocardiograph faces a corresponding coil of said recorder.
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Specification