design touch screenbased handheld systems for low power consumption

Ngày tải lên: 01/07/2014, 11:20

... system There are well developed methods for defining performance criteria and for designing linear closed loop systems which meet the performance requirements. It would then ... LIDS-P-1756 Design of Feedback Control Systems for Stable Plants with Saturating Actuators' by Petros Kapasouris * Michael Athans Gunter Stein ** Room 35-406 Laboratory for Information ... for MIMO systems [11] showing potential for improving the performance of the system. A simple case study was also recently conducted on the effects of saturations to MIMO systems...

Ngày tải lên: 18/02/2014, 10:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 25/12/2013, 10:38

Ngày tải lên: 22/06/2014, 20:20

Ngày tải lên: 23/06/2014, 01:20

... large variable gain ranges under low supply voltage. II.2 Comparison of the commonly used VGA structures The design requirements impose challenges on low power consumption, very large bandwidth, ... suitable for low power applications. (3) Summary of analog-multiplier-based VGA In summary, the multiplier-based VGA has good linearity and large gain tuning range, but it is not power efficient ... generated by the subtraction between g mp1 and g mp2 . And hence, it is not suitable for low- power VGA design. II.1.3 Differential pair with source degeneration Another commonly used VGA...

Ngày tải lên: 06/11/2012, 10:26

Ngày tải lên: 03/01/2014, 19:39

... achieving gender equality and empowering women Task Force on Child Health and Maternal Health Who’s got the power? Transforming health systems for women and children Task Force on HIV/AIDS, Malaria, ... achieving gender equality and empowering women Task Force on Child Health and Maternal Health Who’s got the power? Transforming health systems for women and children Task Force on HIV/AIDS, Malaria, ... critical for ensuring full access to sexual and reproductive health information and services which, together with good nutrition, form the foundation of good health for women and for chil - dren....

Ngày tải lên: 12/02/2014, 23:20

... achieving gender equality and empowering women Task Force on Child Health and Maternal Health Who’s got the power? Transforming health systems for women and children Task Force on HIV/AIDS, Malaria, ... Project task forces. The task forces have identified the interventions and policy measures needed to achieve each of the Goals. In Who’s Got the Power: Transforming Health Systems for Women and ... indicators for child health and maternal health 3 2 Task force approach to health systems 13 3 Proposed targets and indicators for the child health and maternal health Goals 1 7 1. 1 Task force...

Ngày tải lên: 05/03/2014, 10:20

... huge proportion of whom live in sub-Saharan Who’s got the power? Transforming Health Systems for Women and Children iv Summary version for adults – requires a far stronger health system than ... to it for managing health and disease – quite often for matters of life and death. Confronting this reality, the task force puts forward the outlines of a differ- ent approach to health systems ... for achieving the maternal and child health Goals, because they capture only some dimensions of a highly textured prob- lem. In addition to the epidemiology, therefore, the task force puts forward...

Ngày tải lên: 22/03/2014, 10:20

... transmit energy. Design of Hydraulic Systems for Lift Trucks 19 4000, the flow is transitional (between laminar and turbulent) and it has elements of both flow types. For flows within circular ... reversible flow Flow restrictor (orifice) fixed Flow restrictor (orifice) variable Flow control, pressure compensated, two-way Flow control, pressure compensated, three-way Design ... Modulus) F Force [N] G Gravity force [N] G Q Flow rate, weight [N/s] h Height, distance [m] k Ratio L Length or distance [m] m Mass (kg) vi Design of Hydraulic Systems for Lift...

Ngày tải lên: 23/03/2014, 11:37

... to proposals on other levels in the design flow and to future work. Keywords: Low- power design, dynamic power reduction, leakage power reduction, ultra- low- V th devices, multi-V dd , multi-V th , ... of dynamic power consumption is a concern for almost all IC products today. For battery-powered products, reduced power consumption directly results in longer operating time for the product, ... search for optimization of power consumption. For leading-edge products which need to optimize both power consumption and system performance, optimization techniques on architecture and design...

Ngày tải lên: 01/06/2014, 11:43

... swarm optimization for pilot tones design in MIMO-OFDM systems Muhammet Nuri Seyman 1* and Necmi Taşpinar 2 Abstract Channel estimation is an essential task in MIMO-OFDM systems for coherent demodulation ... coherent demodulation and data detection. Also designing pilot tones that affect the channel estimation performance is an important issue for these systems. For this reason, in this article we propose ... [4-6]. However, designing of pilot tones directly affect the performance of channel esti- mation algorithms. Hence, optimal design for training symbols based on minimizing Cramer Rao lower bound...

Ngày tải lên: 21/06/2014, 03:20

... ultra -low- power image compressor for capsule endoscope,” BioMedical Engineering Online, vol. 5, article 14, 2006. [15] X. Xie, G. Li, X. Chen, X. Li, and Z. Wang, “A low- power digital IC design ... converting into one dimension for B component. Raw image R G1 G2 B Compression image for G1 Compression image for G2 Noncompression image for B Compression image for R Entropy coding Entropy coding Entropy coding 4-by-4 zigzag scan 4-by-4 zigzag scan 8-by-8 zigzag scan Quantization R-table 4-by-4 quantization G-table 4-by-4 quantization G-table 2D 8-by-8 DCT 2D 4-by-4 DCT 2D 4-by-4 DCT 2 ... 1.8 V, the power consumption of logic part is 3.88 mW, estimated by using PrimePower. The memory blocks are generated by Artisan memory compiler and consume 5.29 mW. The total power consumption...

Ngày tải lên: 21/06/2014, 07:20

... analyzed. This paper focuses on error performance analysis for SIMO-OFDM systems over peak -power- limited channels. Several low- complexity transceiver designs are proposed to collect the antenna ... the power efficiency and nonlinear distortion considerations, the error performance of OFDM systems with peak -power- limited power amplifier (PA) should be investigated. To quantify the error performance ... in peak -power- limited SIMO fading channels. First, we give some definitions. Definition 1 (PSNR). For the peak -power- limited PA, the peak-signal-to-noise ratio (PSNR) is used to compare the PA power consumption...

Ngày tải lên: 21/06/2014, 18:20

... q i : Pr  idle i = K  =  1 − q i  K−1 q i . (2) Following the analytical formulation of 802.11 systems [5], it has been shown that this assumption is valid for interference caused by those networks. ... exact method makes it infeasible for practical applications. Therefore, it is needed to derive an approximate solution for the success probability giving acceptable performance with minimal computational ... f t +1 . (11) Following the above formulation, the history of trans- mission outcomes for each channel can be written as x(t) = (i t , b t , s t , f t ) which we call the informational state...

Ngày tải lên: 21/06/2014, 22:20

... average energy consumption per node of LPL and DW-LPL for varying sleep intervals, T p for LPL and T b for DW-LPL. In Figure 8(a), T p = 100 ms is best for data generation interval T d = 10 s. For T d = ... energy model: (a) energy consumption for varying T p in LPL (n = 10); (b) energy consumption for varying T b in DW-LPL (n = 10, δ = 0.01, T ∗ p ); (c) energy consumption comparison for varying R d in LPL ... analysis. Symbol Meaning CC2420 P l Power in listening 56.4 mW P t Power in transmitting 52.2 mW P r Power in receiving 56.4 mW P a Power in awaking 670 uW P s Power in sleeping 3 uW t a Time to...

Ngày tải lên: 21/06/2014, 23:20

... the total power consumption and the final throughput. In this paper, we propose a dataflow oriented design ap- proach for low- power block based video processing and ap- ply it to the design of ... systems: formal models, val- idation, and synthesis,” Proceedings of the IEEE, vol. 85, no. 3, pp. 366–390, 1997. [10] L. Mazzoni, Power aware design for embedded systems, ” IEE Electronics Systems ... Vleeschouwer, “Model-based rate control implemen- tation for low- power video communications systems, ” IEEE Transactions on Circuits and Systems for Video Technology, vol. 13, no. 12, pp. 1187–1194,...

Ngày tải lên: 22/06/2014, 19:20