Modern medical devices usually include some sort of wearable/implantable devices that uses an analog or digital circuit to enhance and amplify some sort of biological signal, like heartbeat or brainwaves, and emit to some outside receiver. Waterproofing and thermal stability become issues to be carefully dealt with as without appropriate housing these devices are not suitable for placement in living beings.
The transmitter patented here comprises a Metal-Oxide semiconductor (MOS) based 4/16 Oscillator. The MOS based oscillator comprises an off-chip load tank with a radiating element.
Modern medical devices often incorporate wearable or implantable technology to monitor vital signals like heartbeats or brainwaves. These devices typically rely on analog or digital circuits to amplify and transmit these biological signals to external receivers for monitoring and analysis. However, ensuring these devices are waterproof and thermally stable is critical, as inadequate housing can render them unsuitable for use within the human body. The patented transmitter addresses this challenge by introducing a Metal-Oxide semiconductor (MOS) based 4/16 Oscillator design. This innovative oscillator includes an off-chip load tank integrated with a radiating element, enhancing both the stability and efficiency of signal transmission. This advancement aims to provide medical devices with a reliable and durable transmitter solution that meets stringent biocompatibility and operational requirements, ensuring safe and effective use in medical applications.
- MOS-based Oscillator: This technology uses a compact MOS-based oscillator with efficient power reuse for transmitting signals.
- Surface Mount Device Inductor: It incorporates a Surface Mount Device Inductor as a compact radiating element for signal transmission.
- Short-Range Communication: It operates within a specific radio band (401MHz to 406MHz) ideal for short-range communication.
- Portable: It eliminates bulky antennas, enhancing portability in wearable health devices and implantable medical devices.
- Energy Efficient: It achieves low power consumption of 85 micro-watts at 1.2 volts, ensuring efficient energy use in wireless transmissions.
The proposed TX [transmitter] has been implemented in 180 nm mixed-mode CMOS technology. Measurements were done with a custom designed test chip. Measurement results show that in OOK mode the proposed TX achieves an energy efficiency of 0.36 nJ/bit. TX consumes an average power of 71 µW and radiates about -24 dBm power at 200 kb/s. Successful wireless communication of pseudo random bit sequence is also shown with the TX and a commercial off-the-shelf receiver at a data rate of 200 kb/s for a maximum communication distance of 2 m.
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This technology facilitates enhanced reliability and efficiency in wireless communication within the MedRadio band, ensuring clearer transmission for medical devices. It reduces interference with other communication devices, aligning with regulatory guidelines for spectrum usage in healthcare applications.
- Biomedical Engineering, Medical devices: Makes for safer biosensors that are less prone to mishaps due to overheating
- Wearable Technologies: A greater range of wearable applications are possible now due to low power consumption and high data transfer rates
Geography of IP
Type of IP
201821003907
441279