Compressive Data Telemetry to Implantable Biomedical Microsystems

可植入生物医学微系统的压缩数据遥测

• 批准号: RGPIN-2021-03648
• 负责人: Sodagar, Amir
• 金额: $ 2.04万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=742005
• 关键词: Compressive; Data; Telemetry; Implantable; Biomedical

The Proposed Program: Implantable medical devices (IMDs) are at the forefront of cutting edge research in medicine and biology, and have proved to be among the most efficient tools in curing diseases and disorders. As an example, one can name brain-implantable microsystems, as a part of the tremendous "worldwide wave of brain research" over the past decade. In harmony with the White House BRAIN Initiative in the US and the Human Brain Program in Europe, Canada has developed the Brain Canada Program, focusing on brain research in a wide sense. The proposed research program focuses on the technical challenges encountered in the development of high-rate data telemetry links to IMDs. The most challenging example of this is in high-density brain implants and visual prostheses (as a highly-advanced engineering effort towards the restoration of vision for the blind). This program aims at introducing a new approach to high-rate data telemetry to such implants by combining data compression techniques with data telemetry procedures, referred to as compressive data telemetry, hereafter. It encompasses the entire wireless telemetry path (comprising the transmitter backend, the wireless link, and the receiver front-end) as well as the realization of data compression methods. This is feasible through our background and achievements in both data compression and wireless interfacing dedicated to IMDs. The research directions in this program will include novel compressive encoding/decoding techniques, modulation/demodulation schemes, the physical telemetry link itself, and the associated implant-efficient integrated circuit implementations (taking into consideration biological tissue safety concerns when exposed to electromagnetic waves). Outcomes: According to the common terminology in digital communications, this program comprises three parts: (a) line encoding/decoding, (b) bandpass modulation/demodulation, and (c) the telemetry link itself. We will introduce novel compressive line encoding techniques that will have the property of temporal compression. Innovative bandpass modulation/demodulation schemes will then follow, which will provide the possibility of high data-rate-to-carrier-frequency ratio telemetry. This program involves the proposition of the techniques themselves, their power- and area-efficient circuit implementations, and the realization and test of the whole wireless interfacing chain. Need and Impact: Nowadays, enhancement of the capacity of IMDs such as brain implants and visual prostheses is the current mainstream of research on the development of such systems. Therefore, being equipped with effective data compression techniques as well as bit-rate efficient telemetry links is becoming a must in the development of such systems. Therefore, our research program will focus on "compressive data telemetry" as a timely effort to address this undeniable and inevitable need.

拟议方案：植入式医疗器械（IMD）处于医学和生物学前沿研究的最前沿，已被证明是治疗疾病和障碍的最有效工具之一。作为一个例子，人们可以将大脑植入式微系统命名为过去十年巨大的“世界范围内的大脑研究浪潮”的一部分。加拿大与美国的白宫大脑计划和欧洲的人脑计划相协调，制定了加拿大大脑计划，重点关注广义上的大脑研究。拟议的研究计划的重点是在开发高速率数据遥测链接到IMD遇到的技术挑战。最具挑战性的例子是高密度大脑植入物和视觉假体（作为恢复盲人视力的高度先进的工程努力）。该计划旨在通过将数据压缩技术与数据遥测程序相结合，为此类植入物引入一种新的高速数据遥测方法，下文称为压缩数据遥测。它包括整个无线遥测路径（包括发射机后端、无线链路和接收机前端）以及数据压缩方法的实现。通过我们在IMD专用数据压缩和无线接口方面的背景和成就，这是可行的。该计划的研究方向将包括新型压缩编码/解码技术，调制/解调方案，物理遥测链路本身以及相关的植入高效集成电路实现（考虑到暴露于电磁波时的生物组织安全问题）。成果：根据数字通信中的通用术语，该程序包括三个部分：（a）线路编码/解码，（B）带通调制/解调，和（c）遥测链路本身。我们将介绍新的压缩线编码技术，将具有时间压缩的属性。随后将采用创新的带通调制/解调方案，这将提供高数据速率与载波频率比遥测的可能性。该计划涉及技术本身的命题，其功率和面积效率的电路实现，以及整个无线接口链的实现和测试。需求和影响：如今，增强诸如脑植入物和视觉假体的IMD的能力是当前关于此类系统开发的研究主流。因此，配备有效的数据压缩技术以及比特率高效的遥测链路成为开发此类系统的必要条件。因此，我们的研究计划将集中在“压缩数据遥测”作为一个及时的努力，以解决这一不可否认的和不可避免的需要。