The Experts below are selected from a list of 291132 Experts worldwide ranked by ideXlab platform
Takayasu Sakurai - One of the best experts on this subject based on the ideXlab platform.
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run time power Control Scheme using software feedback loop for low power real time application
Asia and South Pacific Design Automation Conference, 2000Co-Authors: Seongsoo Lee, Takayasu SakuraiAbstract:A novel hardware-software cooperative power Control Scheme, namely a software feedback loop, is proposed to lower power consumption of VLSI systems. The proposed runtime voltage and frequency Control Scheme guarantees the real-time execution of applications. It avoids interface problems and also provides "binary-code compatibility". Using a software analysis environment, the power Control Scheme is shown to achieve more than 90% power reduction for real-time MPEG-4 SP@L1 video encoding, taking into consideration the transition delay between voltage and frequency levels.
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run time power Control Scheme using software feedback loop for low power real time applications
Asia and South Pacific Design Automation Conference, 2000Co-Authors: Seongsoo Lee, Takayasu SakuraiAbstract:A novel hardware-software cooperative power Control Scheme, namely a software feedback loop, is proposed to lower power consumption of VLSI systems. The proposed runtime voltage and frequency Control Scheme guarantees the real-time execution of applications. It avoids interface problems and also provides "binary-code compatibility". Using a software analysis environment, the power Control Scheme is shown to achieve more than 90% power reduction for real-time MPEG-4 SP@L1 video encoding, taking into consideration the transition delay between voltage and frequency levels.
Seongsoo Lee - One of the best experts on this subject based on the ideXlab platform.
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run time power Control Scheme using software feedback loop for low power real time application
Asia and South Pacific Design Automation Conference, 2000Co-Authors: Seongsoo Lee, Takayasu SakuraiAbstract:A novel hardware-software cooperative power Control Scheme, namely a software feedback loop, is proposed to lower power consumption of VLSI systems. The proposed runtime voltage and frequency Control Scheme guarantees the real-time execution of applications. It avoids interface problems and also provides "binary-code compatibility". Using a software analysis environment, the power Control Scheme is shown to achieve more than 90% power reduction for real-time MPEG-4 SP@L1 video encoding, taking into consideration the transition delay between voltage and frequency levels.
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run time power Control Scheme using software feedback loop for low power real time applications
Asia and South Pacific Design Automation Conference, 2000Co-Authors: Seongsoo Lee, Takayasu SakuraiAbstract:A novel hardware-software cooperative power Control Scheme, namely a software feedback loop, is proposed to lower power consumption of VLSI systems. The proposed runtime voltage and frequency Control Scheme guarantees the real-time execution of applications. It avoids interface problems and also provides "binary-code compatibility". Using a software analysis environment, the power Control Scheme is shown to achieve more than 90% power reduction for real-time MPEG-4 SP@L1 video encoding, taking into consideration the transition delay between voltage and frequency levels.
Junnan Gao - One of the best experts on this subject based on the ideXlab platform.
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dimming Control Scheme with high power and spectrum efficiency for visible light communications
IEEE Photonics Journal, 2017Co-Authors: Fang Yang, Junnan GaoAbstract:In this paper, in order to accommodate dimming demands for illumination, which is an essential requirement for visible light communication (VLC), a dimming Control Scheme with high power and spectrum efficiency is proposed. In the proposed method, a negative hybrid asymmetrically clipped optical orthogonal frequency division multiplexing (NHACO-OFDM) is first investigated and then combined with HACO-OFDM signal for multiplexed transmission. By adjusting the proportion of these two signals, the novel dimming Control Scheme can be achieved. Simulation results conducted that the proposed Scheme can support optical wireless communication with higher power and spectrum efficiency and carry out the dimming Control with broad dimming range for illumination, compared with conventional counterparts under various illumination conditions.
Wei R Chen - One of the best experts on this subject based on the ideXlab platform.
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performance of dimming Control Scheme in visible light communication system
Optics Express, 2012Co-Authors: Zixiong Wang, Wende Zhong, Jian Chen, Chin Po Shin Francois, Wei R ChenAbstract:We investigate the performance of visible light communication (VLC) system with a pulse width modulation (PWM) dimming Control Scheme. Under this Scheme, the communication quality in terms of number of transmitted bits and bit error rate (BER) of less than 10(-3) should be guaranteed. However, for on-off-keying (OOK) signal, the required data rate becomes 10 times as high as the original data rate when the duty cycle of dimming Control signal is 0.1. To make the dimming Control Scheme easy to be implemented in VLC system, we propose the variable M-QAM OFDM VLC system, where M is adjusted according to the brightness of LED light in terms of duty cycle. The results show that with different duty cycles the required data rates are not higher than the original value and less LED lamp power is required to guarantee the communication quality, which makes the dimming Control system that satisfies both communication and illumination requirements easy to be implemented and power-saving.
E Levi - One of the best experts on this subject based on the ideXlab platform.
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a synchronous current Control Scheme for multiphase induction motor drives
IEEE Transactions on Energy Conversion, 2009Co-Authors: M Jones, Slobodan N Vukosavic, Drazen Dujic, E LeviAbstract:Rotor-flux-oriented Control of multiphase induction machines with sinusoidal magnetomotive force (MMF) distribution can be realized theoretically by using only two current Controllers in the synchronous reference frame. In practice, however, this is inadequate, as shown in this paper using experimental results collected from five-phase induction motor drive laboratory prototypes. Various asymmetries of the machine and nonideal nature of the inverter necessitate an appropriate modification of the current Control Scheme in the rotating reference frame. Such a modified current Control Scheme is developed in this paper, and its ability to provide operation of the machine with a practically perfectly sinusoidal and balanced system of five-phase currents is demonstrated experimentally.
