Body channel digital pulse transmission for biometric measurement by fully implantable CMOS image sensor

Hayami, Hajime; Ishii, Yoshinori; Sasagawa, Kiyotaka; Noda, Toshihiko; Tokuda, Takashi

doi:10.1109/imfedk.2014.6867046

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2021

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“…A channel sounder comprises a pair of devices that are used to discretely generate and receive a test signal to measure the channel parameters. For the out-body to inbody channel, the channel measurement can be performed using a wired channel sounder, where twisted pairs or coaxial cables are connected between the channel transmitter and the receiver in the channel sounder [5][6][7]. Such a cable connection causes interference during the channel measurement of the out-body and in-body channels.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Implantable Capsule-Type Channel Sounders for the High-Accuracy Measurement of the Signal Loss of Out-Body to In-Body Channels

Jung

Shin

et al. 2021

Electronics

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This paper proposes a channel sounder to measure the channel properties of an implantable device that transmits data from inside to outside the human body. The proposed channel sounder measures the receiving power of a signal transmitted from outside the human body. The channel sounder is equipped with a Bluetooth module that enables the wireless transmission of the receiving power outside the human body. Wireless transmission enables the channel measurement by isolating the transmitter and receiver inside the channel sounder. Using the proposed channel sounder, the channel properties can be measured without any interference between the transmitter and the receiver.

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Section: Introductionmentioning

confidence: 99%