Look-ahead seek correction in high-performance CD-ROM drives

1998 ◽  
Vol 44 (1) ◽  
pp. 178-186 ◽  
Author(s):  
S.G. Stan ◽  
H. van Kempen ◽  
G. Leenknegt ◽  
T.H.M. Akkermans
Keyword(s):  
High Performance ◽  
Cd Rom ◽  
Look Ahead

scholarly journals Path-Following Control of Wheeled Planetary Exploration Robots Moving on Deformable Rough Terrain

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Liang Ding ◽  
Hai-bo Gao ◽  
Zong-quan Deng ◽  
Zhijun Li ◽  
Ke-rui Xia ◽  
...  
Keyword(s):  
High Performance ◽  
Path Following ◽  
Planetary Exploration ◽  
Rough Terrain ◽  
Good Precision ◽  
Planetary Rovers ◽  
Terrain Model ◽  
Look Ahead ◽  
Path Following Control ◽  
Wheeled Robot

The control of planetary rovers, which are high performance mobile robots that move on deformable rough terrain, is a challenging problem. Taking lateral skid into account, this paper presents a rough terrain model and nonholonomic kinematics model for planetary rovers. An approach is proposed in which the reference path is generated according to the planned path by combining look-ahead distance and path updating distance on the basis of the carrot following method. A path-following strategy for wheeled planetary exploration robots incorporating slip compensation is designed. Simulation results of a four-wheeled robot on deformable rough terrain verify that it can be controlled to follow a planned path with good precision, despite the fact that the wheels will obviously skid and slip.

International Conference on Gears 2019

2019 ◽  
Keyword(s):  
Applied Sciences ◽  
High Performance ◽  
Stressed Volume ◽  
Cd Rom ◽  
International Conference ◽  
University Of Technology ◽  
Surface Durability ◽  
Tooth Flank ◽  
Plastic Gears ◽  
Beijing China

Der Bericht ist ausschließlich als PDF-Dokument erschienen! Drei Konferenzen in einer, auf 1.874 Seiten finden Sie jede Menge aller neueste Informationen zum Thema Gears. Die beiden anderen Konferenzen waren: 3rd International Conference on High Performance Plastic Gears 2019 und 3rd International Conference on Gear Production 2019 Achtung: Dieser VDI-Bericht ist ausschließlich als PDF-Datei auf CD-ROM lieferbar! Auszug aus dem 22-seitigen Inhaltsverzeichnis: Foreword 1 K. Stahl, Technische Universität München (TUM), Garching International Conference on Gears 2019 Flank strength Influence of gear surface roughness on pitting and micropitting life 3 E. Bergstedt, Prof. U. Olofsson, KTH, Stockholm, Sweden; J. Lin, Beijing University of Technology, Beijing, China; P. Lindholm, ABB Corporate Research, Västerås, Sweden Influence of stressed volume of tooth flank on the surface durability 15 A. Kubo, Research Institute for Applied Sciences, Ooicho, Kyoto, Japan Transfer of the tooth fl...

Full-Custom Design and Implementation of High-Performance Multiplier

2013 ◽  
Vol 631-632 ◽  
pp. 1445-1451
Author(s):  
Ren Ping Wang
Keyword(s):  
High Performance ◽  
Computation Time ◽  
Cmos Process ◽  
Logic Design ◽  
Design And Implementation ◽  
Look Ahead ◽  
Custom Design ◽  
Euler Path ◽  
Layout Area ◽  
The Look

I proposed a method of using full-custom design 32 × 32 multiplier to enhance performance, reduce the power consumption and the area of layout. I use improved Wallace tree structure for partial product compression, truncated beyond the 64 part of the plot and the look-ahead logarithmic adder using Radix-4 Kogge-Stone tree algorithm raise the multiplier performance. In the design of Booth2 encoding circuit and compression circuit, I use a transmission gate logic design with higher speed and smaller area. I also use Euler path method and heuristic Euler path method to reduce the layout area. The design use SMIC 0.18μm 1P4M CMOS process, with a layout area of 0.1684mm2. In a large number of test patterns, simulation results show that the computation time of a 32 × 32 multiplication is less than 3.107ns.

scholarly journals 4-bit Carry Look Ahead Adder Using MGDI Technique

2021 ◽  
Vol 9 (9) ◽  
pp. 855-860
Author(s):  
Shaik Mahammad Ameer Afridi
Keyword(s):  
Integrated Circuits ◽  
Low Power ◽  
Power Dissipation ◽  
High Performance ◽  
Digital Signal ◽  
Vlsi Circuits ◽  
Digital Vlsi ◽  
Look Ahead ◽  
Energy Trade ◽  
Integral Role

Abstract: Today's high-performance processor is built with arithmetic logic units that add and subtract key components. Design considerations related to low power and high performance digital VLSI circuits have become more prevalent in today's world. In order to develop low-power and high-performance processors, the designers need to design their adder circuits with the required speed and power dissipation for their applications. This topic introduces the concept of a adder using MGDI Technique. The Exact Speculative Carry Look Ahead Adder the use of the Modified-GDI (Modified-Gate Diffusion Input) is cautioned in this work. The delay, location and energy trade off performs a integral role in VLSI. We already comprehend that designs which are of CMOS fashion occupy extra area might also eat extra strength consumption. The switching conduct of the circuit reason the heating up of integrated circuits affects the working stipulations of the purposeful unit. The adders are the most important parts of countless applications such as microprocessors, microcontrollers and digital signal processors and additionally in actual time applications. Hence it is necessary to minimize the adder blocks to format a perfect processor. This work is proposed on a 16 bit carry seem to be in advance adder is designed through using MGDI gate and 4T XOR gates and a speculator blocks. The proposed MGDI raise Look Ahead adder occupies 68% much less region and the strength consumption and the propagation extend additionally considerably reduces when in contrast to the traditional carry Look Ahead adder why because the variety transistors extensively reduces from 1448 (Conventional) to 456 (Proposed CLA). The simulation consequences of the proposed format carried out in Xilinx. Keywords: Delay, power dissipation, voltage, transistor sizing.

scholarly journals Analysis of CMOS Logic and Transmission Gate for 64 Bit Parallel Prefix Adders

2018 ◽  
Vol 7 (2) ◽  
pp. 115
Author(s):  
Nehru.K K ◽  
Nagarjuna T ◽  
Somanaidu U
Keyword(s):  
High Performance ◽  
Digital Signal ◽  
Digital Signal Processors ◽  
Transmission Technique ◽  
Look Ahead ◽  
Parallel Prefix ◽  
Prefix Adder ◽  
Signal Processors ◽  
Prefix Adders ◽  
Better Than

<span>Parallel prefix adder network is a type of carry look ahead adder structure. It is widely considered as the fastest adder and used for high performance arithmetic circuits in the digital signal processors. In this article, an introduction to the design of 64 bit parallel prefix adder using transmission technique which acquires least no of nodes<strong> </strong>with the lowest transistor<strong> </strong>count and low power consumption is presented. The 64 bit parallel prefix adder is designed and comparison is made between other previously parallel prefix adders. The result shows that the proposed 64 bit parallel prefix adder is slightly better than existing parallel prefix adders and it considerably increases the computation speed.The spice tool is used for analysis with different supply voltages.</span>

scholarly journals CD-ROM system using high performance error correcting system.

1986 ◽  
Vol 40 (6) ◽  
pp. 501-507 ◽  
Author(s):  
Takashi Takeuchi ◽  
Tamotsu Ito ◽  
Tadashi Saito ◽  
Takashi Hoshino ◽  
Hiroo Okamoto ◽  
...  
Keyword(s):  
High Performance ◽  
Cd Rom ◽  
Performance Error

High performance 8 bit cascaded carry look ahead adder with precise power consumption

2014 ◽  
Vol 28 (8) ◽  
pp. 1475-1483
Author(s):  
Raj Johri ◽  
Shyam Akashe ◽  
Sanjay Sharma
Keyword(s):  
Power Consumption ◽  
High Performance ◽  
Look Ahead

scholarly journals Assertion Driven Modified Booth Encoding and Post Computation Model for Speed MAC Applications

2021 ◽  
Author(s):  
S. Sivasaravanababu ◽  
T.R. Dineshkumar ◽  
G. Saravana Kumar
Keyword(s):  
Computational Complexity ◽  
High Speed ◽  
High Performance ◽  
Complexity Reduction ◽  
Partial Product ◽  
Path Delay ◽  
Overall Design ◽  
Look Ahead ◽  
Wireless Application ◽  
Product Accumulation

The Multiply-Accumulate Unit (MAC) is the core computational block in many DSP and wireless application but comes with more complicated architectures. Moreover the MAC block also decides the energy consumption and the performance of the overall design; due to its lies in the maximal path delay critical propagation. Developing high performance and energy optimized MAC core is essential to optimized DSP core. In this work, a high speed and low power signed booth radix enabled MAC Unit is proposed with highly configurable assertion driven modified booth algorithm (AD-MBE). The proposed booth core is based on core optimized booth radix-4 with hierarchical partial product accumulation design and associated path delay optimization and computational complexity reduction. Here all booth generated partial products are added as post summation adder network which consists of carry select adder (CSA) & carry look ahead (CLA) sequentially which narrow down the energy and computational complexity. Here increasing the operating frequency is achieved by accumulating encoding bits of each of the input operand into assertion unit before generating end results instead of going through the entire partial product accumulation. The FPGA implementation of the proposed signed asserted booth radix-4 based MAC shows significant complexity reduction with improved system performance as compared to the conventional booth unit and conventional array multiplier.

scholarly journals High-performance adaptive-speed/CAV CD-ROM drive

1997 ◽  
Vol 43 (4) ◽  
pp. 1034-1044 ◽  
Author(s):  
S.G. Stan ◽  
H. van Kempen ◽  
Chi-Cheng Steve Lin ◽  
M.-S. Mason Yen ◽  
Wai W. Wang
Keyword(s):  
High Performance ◽  
Cd Rom
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