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A Micropower Pulsewidth-Modulation-Pulse-Position-Modulation Two-Channel Telemetry System for Biomedical Applications | IEEE Journals & Magazine | IEEE Xplore

A Micropower Pulsewidth-Modulation-Pulse-Position-Modulation Two-Channel Telemetry System for Biomedical Applications


Abstract:

A novel micropower, two-channel telemetry system, which has been used to transmit the occurrence of the QRS complex of the heart waveform and temperature information, is ...Show More

Abstract:

A novel micropower, two-channel telemetry system, which has been used to transmit the occurrence of the QRS complex of the heart waveform and temperature information, is described. The system employs pulsewidth-modulation (PWM) and pulse-position-modulation (PPM) methods plus a few unique circuits and system-design techniques so that it has the following desirable features. 1) The transmitting unit consumes extremely low power due to low duty cycle and yet delivers high peak power for better receiving. In addition, the unit is compensated (not regulated) for battery voltage variation. 2) By means of adaptive threshold, pulse-width-discrimination and pulse-rate-discrimination networks, the receiving unit is relatively noise free in signal identification. Information in analog and digital form are available at the output for convenience. A prototype system was designed and fabricated. Test results are presented. Due to the availability of the integrated circuits on the market, medical doctors and biologists will be able to duplicate the system if the system-size problem is not severe. Although the design was not trivial, the implementation is quite straightforward. Hence it is believed that device or integrated-circuit manufacturers would be able to implement it in a much more compact form.
Published in: IEEE Transactions on Biomedical Engineering ( Volume: BME-21, Issue: 4, July 1974)
Page(s): 273 - 280
Date of Publication: 12 March 2007

ISSN Information:

PubMed ID: 4837474
Citations are not available for this document.

Cites in Papers - |

Cites in Papers - IEEE (2)

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1.
Virgilio Valente, "Evolution of Biotelemetry in Medical Devices: From Radio Pills to mm-Scale Implants", IEEE Transactions on Biomedical Circuits and Systems, vol.16, no.4, pp.580-599, 2022.
2.
Ante Santic, Spiro Vamvakas, Michael R. Neuman, "Micropower Electronic Switches for Implanted Instrumentation", IEEE Transactions on Biomedical Engineering, vol.BME-29, no.8, pp.583-589, 1982.

Cites in Papers - Other Publishers (5)

1.
Jordi Colomer-Farrarons, Pere Lluís Miribel-Català, A CMOS Self-Powered Front-End Architecture for Subcutaneous Event-Detector Devices, pp.93, 2011.
2.
Robert Puers, Jef Thone, "Short Distance Wireless Communications", Bio-Medical CMOS ICs, pp.219, 2011.
3.
"An introduction on telemetry", Inductive Powering, pp.1, 2009.
4.
Toshifumi Sugiura, Motohiko Kimura, Toshihiko Hasegawa, Keizo Yoshimura, Yukio Harada, "Telemetry system for heart-rate and blood temperature using a microcomputer", Journal of Medical Engineering & Technology, vol.9, no.1, pp.5, 1985.
5.
A. T. Pryzbylik, G. E. Martin, N. H. Spector, "A method for the continuous measurement of core temperature in small animals", Annals of Biomedical Engineering, vol.5, no.2, pp.122, 1977.

References

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