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IEEE Transactions on Circuits and Systems II: Express Briefs

Issue 2 • Feb. 2011

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Displaying Results 1 - 19 of 19
  • Table of contents

    Publication Year: 2011, Page(s): C1
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs publication information

    Publication Year: 2011, Page(s): C2
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  • A 0.5/0.8-V 9-GHz Frequency Synthesizer With Doubling Generation in 0.13- \mu\hbox {m} CMOS

    Publication Year: 2011, Page(s):65 - 69
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (918 KB) | HTML iconHTML

    To lower the supply voltage for high-frequency operation, a fully integrated frequency synthesizer, together with regenerative frequency-doubling and fractional phase-rotating techniques, is presented. The frequency-doubling circuit regenerates the tail signals at twice the frequency of the quadrature voltage-controlled oscillator (QVCO) to achieve larger output swing and higher operating frequenc... View full abstract»

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  • A 1-GHz Digital PLL With a 3-ps Resolution Floating-Point-Number TDC in a 0.18- \mu\hbox {m} CMOS

    Publication Year: 2011, Page(s):70 - 74
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (871 KB) | HTML iconHTML

    A new concept of floating-point-number representation is implemented in a time-to-digital converter (TDC), which adaptively scales its resolution according to the amount of input difference. With a fixed 6-bit significand number, the TDC provides five cases of the exponent (x1, x2, x4, x8, and x16) to indicate the scale information. A digital phase-locked loop (PLL) with the TDC is implemented in ... View full abstract»

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  • A Laser-Trimmed Rail-to-Rail Precision CMOS Operational Amplifier

    Publication Year: 2011, Page(s):75 - 79
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This brief presents a rail-to-rail input-output precision operational amplifier with integrated laser-trimmable polysilicon resistors for reducing the input offset voltage. The amplifier is fabricated in a standard Taiwan Semiconductor Manufacturing Company 0.18-μm complementary-metal-oxide-semiconductor process technology. The resistors' trimming sequence allows for minimizing the offset v... View full abstract»

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  • A Low-Power Energy-Harvesting Logarithmic CMOS Image Sensor With Reconfigurable Resolution Using Two-Level Quantization Scheme

    Publication Year: 2011, Page(s):80 - 84
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (747 KB) | HTML iconHTML

    In this brief, a CMOS image sensor that exploits the possibility of reconfiguring pixel photodiodes for energy harvesting for wireless image sensor applications is proposed. Based on the logarithmic sensor architecture, each pixel photodiode of the proposed sensor array can be configured into either photosensing or energy-harvesting element to accomplish image-capturing or energy-harvesting purpos... View full abstract»

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  • A Wide-Dynamic-Range CMOS Image Sensor With Gating for Night Vision Systems

    Publication Year: 2011, Page(s):85 - 89
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (295 KB) | HTML iconHTML

    This brief presents a novel concept for a global multishuttering CMOS image sensor with linear wide-dynamic-range (WDR) implementation for night vision systems. The proposed imager is synchronized with an external active pulsed light source and is suitable for surveillance, automotive, and military applications. The proposed imager provides a linear WDR by applying adaptive exposure time to each p... View full abstract»

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  • A Delta–Sigma Interface Circuit for Capacitive Sensors With an Automatically Calibrated Zero Point

    Publication Year: 2011, Page(s):90 - 94
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (777 KB) | HTML iconHTML

    We present a low-complexity interface circuit for capacitive sensors that are integrated into sensor microsystems. To reduce hardware cost while keeping high resolution, a first-order delta-sigma modulator (DSM), which balances the charge from the capacitive difference between sense and reference capacitors with the charge from a fixed-quantity capacitor, is employed. A charge-mode digital-to-anal... View full abstract»

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  • Power-Saving 4 \times 4 Lattice-Reduction Processor for MIMO Detection With Redundancy Checking

    Publication Year: 2011, Page(s):95 - 99
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (987 KB) | HTML iconHTML

    In this brief, we propose a lattice-reduction (LR) processor for the LR-aided multiple-input-multiple-output detection. The proposed LR processor was developed based on a modified Lenstra-Lenstra-Lovász (LLL) algorithm. We developed a constant-throughput parallel architecture to realize the real-time operation for the LR. The proposed architecture can detect many redundant operations by ch... View full abstract»

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  • Secure Variable Data Rate Transmission

    Publication Year: 2011, Page(s):100 - 104
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    A novel secure variable data rate (SVDR) transmission method is presented along with an architecture for implementing the SVDR transmission. This method reduces transmission overhead requirements by allowing both parties to maintain the initialization vector information locally rather than by obtaining it from the received packet. The only requirement this method places on the transmission is to m... View full abstract»

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  • An Autocalibrated All-Digital Temperature Sensor for On-Chip Thermal Monitoring

    Publication Year: 2011, Page(s):105 - 109
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (663 KB) | HTML iconHTML

    This brief presents an autocalibrated all-digital temperature sensor circuit for use with on-chip thermal sensing applications. The proposed temperature sensor eliminates the need for two-temperature-point calibration in prior temperature sensors. Therefore, temperature sensor calibration efforts in high-volume production can be significantly reduced. The proposed design uses reference clock perio... View full abstract»

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  • A Modified Chaos-Based Joint Compression and Encryption Scheme

    Publication Year: 2011, Page(s):110 - 114
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (178 KB) | HTML iconHTML

    An approach for improving the compression performance of an existing chaos-based joint compression and encryption scheme is proposed. The lookup table used for encryption is dynamically updated in the searching process. Once a partition not matched with the target symbol is visited, this and other partitions mapped to the same symbol are reallocated to a nonvisited symbol. Therefore, the target sy... View full abstract»

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  • Design of Multiplierless Decimation Filters Using an Extended Search of Cyclotomic Polynomials

    Publication Year: 2011, Page(s):115 - 119
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (353 KB) | HTML iconHTML

    This brief addresses the design of multiplierless decimation filters using an extended set of cyclotomic polynomials (CPs) as constituent filters. It extends the results presented in a companion paper by one of the coauthors to CPs with indexes in the set {1, , 200}, and it presents the z-transfer functions of all CPs with indexes from 61 to 200. One of the key observations stem... View full abstract»

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  • A New Transform-Domain Regularized Recursive Least M-Estimate Algorithm for a Robust Linear Estimation

    Publication Year: 2011, Page(s):120 - 124
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (301 KB) | HTML iconHTML

    This brief proposes a new transform-domain (TD) regularized M-estimation (TD-R-ME) algorithm for a robust linear estimation in an impulsive noise environment and develops an efficient QR-decomposition-based algorithm for recursive implementation. By formulating the robust regularized linear estimation in transformed regression coefficients, the proposed TD-R-ME algorithm was found to offer ... View full abstract»

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  • Special issue on energy-harvesting/scavenging circuits and systems

    Publication Year: 2011, Page(s): 125
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  • Have you visited lately? www.ieee.org [advertisement]

    Publication Year: 2011, Page(s): 126
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  • 2011 IEEE membership form

    Publication Year: 2011, Page(s):127 - 128
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  • IEEE Circuits and Systems Society Information

    Publication Year: 2011, Page(s): C3
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs Information for authors

    Publication Year: 2011, Page(s): C4
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Aims & Scope

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

Chi K. Michael Tse
Dept. of Electronic and Information Engineering
Hong Kong Polytechnic University
Hunghom, Hong Kong
cktse@ieee.org