Cardiotachometer
First Claim
1. A cardiotachometer for processing electrocardiographic signals on cardio-condition of the heart of a human body obtained from a pair of electrodes mounted near the heart of a human body, the cardiotachometer comprising:
- a transmitting section which includes;
a detection circuit for detecting the electrocardiographic signals and generating detection signals with generation intervals,an interval data creating circuit coupled with the detection circuit for counting the generation intervals of the detection signals with signals of a preset period and generating interval data,ID code generating means for creating a transmitted ID code for identification,a serial data creating circuit coupled to the interval data creating circuit and ID code generating means for linking the interval data with the transmitted ID code to generate a serial data signal, anda transmission circuit coupled to the serial data creating circuit for modulating the serial data signal and transmitting the modulated serial data signal as a radio signal; and
a receiving section which includes;
a reception circuit for receiving and demodulating the radio signal from the transmitting section and generating a reception signal,a data decoding circuit coupled to the reception circuit for decoding the reception signal and generating the serial data signal,data separation means coupled to the data decoding circuit for separating the interval data and the transmitted ID code from the serial data signal,ID code storage means for storing a stored ID code,ID code comparison/determination means coupled to the data separation means and the ID code storage means for comparing the transmitted ID code and the stored ID code and determining a comparison signal indicating whether the separated interval data are reliable,a calculation circuit coupled to the data separation means and ID code comparison/determination means for receiving the interval data and calculating a heart rate from the interval data if the comparison signal indicates the separated interval data are reliable, anda display section for displaying the heart rate.
2 Assignments
0 Petitions
Accused Products
Abstract
An improved cardiotachometer comprises a transmitting section and a receiving section. The transmitting section includes a detection circuit for detecting electrocardiographic signals obtained from a pair of electrodes mounted near the heart of a human body. The transmitting section processes and transmits the electrocardiographic data with ID code data to the receiving section in the form of a radio signal. The receiving section?! compares the transmitted ID code with a stored ID code. If the two codes do not agree, the receiving section does not make any calculations or modify the previous signal. If the two codes agree, a genuine reception has resulted and the receiving section computes a heart rate based on the electrocardiographic data. A display section displays the computed heart rate. The use of the ID code comparison method eliminates erroneous reception of signals generated by noise or interference by the receiving section.
108 Citations
8 Claims
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1. A cardiotachometer for processing electrocardiographic signals on cardio-condition of the heart of a human body obtained from a pair of electrodes mounted near the heart of a human body, the cardiotachometer comprising:
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a transmitting section which includes; a detection circuit for detecting the electrocardiographic signals and generating detection signals with generation intervals, an interval data creating circuit coupled with the detection circuit for counting the generation intervals of the detection signals with signals of a preset period and generating interval data, ID code generating means for creating a transmitted ID code for identification, a serial data creating circuit coupled to the interval data creating circuit and ID code generating means for linking the interval data with the transmitted ID code to generate a serial data signal, and a transmission circuit coupled to the serial data creating circuit for modulating the serial data signal and transmitting the modulated serial data signal as a radio signal; and a receiving section which includes; a reception circuit for receiving and demodulating the radio signal from the transmitting section and generating a reception signal, a data decoding circuit coupled to the reception circuit for decoding the reception signal and generating the serial data signal, data separation means coupled to the data decoding circuit for separating the interval data and the transmitted ID code from the serial data signal, ID code storage means for storing a stored ID code, ID code comparison/determination means coupled to the data separation means and the ID code storage means for comparing the transmitted ID code and the stored ID code and determining a comparison signal indicating whether the separated interval data are reliable, a calculation circuit coupled to the data separation means and ID code comparison/determination means for receiving the interval data and calculating a heart rate from the interval data if the comparison signal indicates the separated interval data are reliable, and a display section for displaying the heart rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification