Microwatt Embedded Processor Platform for Medical System-on-Chip Applications

Sridhara, S.R.; DiRenzo, Michael T.; Lingam, Srinivas; Lee, Seokjun; Blazquez, R.; Maxey, Jay; Ghanem, Samer; Lee, Yu-Hung; Abdallah, Rami A.; Singh, Prashant; Goel, Manish

doi:10.1109/jssc.2011.2108910

Cited by 100 publications

(29 citation statements)

References 14 publications

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“…Three is the sharing of basic level and community medical information [9,[11][12][13][14][15][16][17][18][19]. According to the current situation of information construction in primary and community medical units, the extension interface of middleware is established, and the conversion method of sharing the information of different demand is realized.…”

Section: Resultsmentioning

confidence: 99%

“…In order to achieve the requirements, we start from the establishment of regional medical information integration platform, according to the existing medical units within and across a hospital data processing demand analysis [10][11][12][13], in view of the problems in the existing medical management information system data can't be shared between the proposed solution, and carried on the theoretical analysis and experimental verification, realizes the standardization of data transmission through the establishment of a middleware platform [1,2], final settlement of regional medical information exchange and sharing can provide comprehensive medical services for patients, reduce medical costs, to achieve information sharing for the medical industry, save costs, while the establishment of a more advanced medical applications, improve the level of public health [14][15][16][17].…”

Section: Methodsmentioning

confidence: 99%

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Regional Medical Platform Based on Middleware

Bai¹,

Pan²,

Bao³

et al. 2016

SJEAT

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In order to realize the sharing of medical data and solve the current situation of excessive medical treatment and waste of resources between patients and medical institutions, medical information interface engine is used to set up different levels of middleware interface. According to the international standard of medical information, the data format is defined, and the management, sharing and transmission of medical data are realized by using middleware software technology.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Regional Medical Platform Based on Middleware

Bai¹,

Pan²,

Bao³

et al. 2016

SJEAT

View full text Add to dashboard Cite

show abstract

“…These data tend to change quickly while the processor is working, thus, high speed memories are required to meet an appropriate performance. Although the nanoprocessor will operate at low frequency—estimated in the kHz range—it is recommended that a RAM module be included for the most recurrent data, as used in most low-power processors [16,44,45,46]. …”

Section: Technical Backgroundmentioning

confidence: 99%

“…Even though usual low-power devices encompass SRAM memory in their structures [16,44,46], due to the high bit density required in a nanodevice, novel DRAM-based technologies seem the best alternative to ensure a sufficient amount of memory—54 times higher than SRAM. However, the energy consumption of DRAM, which requires a continuous refresh signal, is its principal inconvenience.…”

Section: Technical Backgroundmentioning

confidence: 99%

“…This leads us to consider it as a key requirement for the nanoprocessor to work at low frequencies. As stated in [44,88], a microprocessor working in the kHz range is able to collect and process sensing data for medical applications, also to switch between sleep and active modes to save energy nimbly. According to the specifications of the processors designed in these works, an appropriate value for the frequency of operation of the nanoprocessor can be established, a priori, around 500 kHz to ensure the aforementioned basic tasks and reach acceptable performance.…”

Section: Nanodevice Conceptmentioning

confidence: 99%

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Conceptual Design of a Nano-Networking Device

Canovas-Carrasco

García-Sánchez

García‐Sánchez

et al. 2016

Sensors

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Nanotechnology is an emerging scientific area whose advances, among many others, have a positive direct impact on the miniaturization of electronics. This unique technology enables the possibility to design and build electronic components as well as complete devices (called nanomachines or nanodevices) at the nano scale. A nanodevice is expected to be an essential element able to operate in a nanonetwork, where a huge number of them would coordinate to acquire data, process the information gathered, and wirelessly transmit those data to end-points providing innovative services in many key scenarios, such as the human body or the environment. This paper is aimed at studying the feasibility of this type of device by carefully examining their main component parts, namely the nanoprocessor, nanomemory, nanoantenna, and nanogenerator. To this end, a thorough state-of-the-art review is conveyed to discuss, substantiate, and select the most suitable current technology (commercial or pre-commercial) for each component. Then, we further contribute by developing a complete conceptual nanodevice layout taking into consideration its ultra-small size (similar to a blood cell) and its very restricted capabilities (e.g., processing, memory storage, telecommunication, and energy management). The required resources as well as the power consumption are realistically estimated.

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Design of Low Dropout (LDO) Regulators

Chen¹

2016

Power Management Techniques for Integrated Circuit Design

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Low dropout (LDO) regulators are widely used in portable electronic devices because they occupy small chip and printed circuit board (PCB) areas. The performance advantages of these regulators include low quiescent current and wide bandwidth (BW), which result in fast transit response. Unlike switching regulators (SWRs), LDO regulators convert voltage through a linear operation, and thus a well-regulated output voltage can be derived without the occurrence of output voltage ripples. However, LDO regulators suffer from an inherent disadvantage, namely poor power conversion efficiency (PCE) if the ratio of the output voltage to the input voltage is small, because a large voltage stress over the pass transistor causes significant power loss. When considering the small silicon area, compact PCB, and reduced discrete component costs, an LDO regulator is one candidate that can provide a conversion function for regulated and scaled-down voltages. LDO regulators are frequently utilized as post-regulators in series with SWRs to suppress voltage ripples from the switching operation of SWRs caused by their large open-loop gain. In general, the combination of an SWR in series with an LDO regulator can be viewed as a simple and efficient power management module if the ratio of the output voltage to the input voltage, as well as the open-loop gain, can remain large in the LDO regulator. An LDO regulator is regarded as a voltage buffer for decreasing voltage ripples at the cost of slightly reduced PCE.LDO regulators have structures that are defined according to their controlling methods and compensated skills. As illustrated in Figure 2.1, LDO regulators may either be analog-low dropout (A-LDO) regulators or digital-low dropout (D-LDO) regulators. The controller of the former is designed with analog circuits, whereas that of the latter is designed with digital circuits. A-LDO regulators have two major categories, namely dominant pole compensation, which involves a large compensation capacitor C out located at the output node, and a capacitorfree (C-free) structure, which involves a dominant pole generated by Miller compensation capacitance.Power Management Techniques for Integrated Circuit Design, First Edition. Ke-Horng Chen.

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Microwatt Embedded Processor Platform for Medical System-on-Chip Applications

Cited by 100 publications

References 14 publications

Regional Medical Platform Based on Middleware

Regional Medical Platform Based on Middleware

Conceptual Design of a Nano-Networking Device

Design of Low Dropout (LDO) Regulators

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