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Showing papers on "Electronic design automation published in 1977"


Journal ArticleDOI
TL;DR: Although an ultimate goal might be a completely automated factory in which design, planning, scheduling, and manufacturing are all under computer control, automation will probably evolve slowly with the development of the appropriate technology.
Abstract: If previous studies1-4 are any indication, there is a national need to develop advanced automation techniques to increase industrial productivity and to enhance the well-being of workers by eliminating hard, dangerous, and dull jobs. Although an ultimate goal might be a completely automated factory in which design, planning, scheduling, and manufacturing are all under computer control, automation will probably evolve slowly with the development of the appropriate technology.

79 citations


Journal ArticleDOI
TL;DR: A procedure for the design of separable two-dimensional digital filters is presented and the computation involved in both the filter design and implementation is shown to be efficient.
Abstract: A procedure for the design of separable two-dimensional digital filters is presented. The computation involved in both the filter design and implementation is shown to be efficient. Several examples are presented which illustrate the application of the technique.

69 citations


Journal ArticleDOI
TL;DR: The crucial role played by the man-computer dialogue in computer-aided circuit design, and particularly within an interactive graphic medium, is demonstrated by reference to a working circuit design facility implemented on a minicomputer.
Abstract: The crucial role played by the man-computer dialogue in computer-aided circuit design, and particularly within an interactive graphic medium, is demonstrated by reference to a working circuit design facility implemented on a minicomputer. The detailed nature of this facility and the techniques illustrated are related to the circuit design process and the behavioral characteristics of the human designer. Special attention is given to the command dialogue, and to the introduction of flexibility allowing a user to modify the facility to suit his own needs.

34 citations


Book
26 Jul 1977

15 citations


Journal ArticleDOI
Asano1, Kitahashi, Tanaka, Horino, Amano 
TL;DR: This paper deals with a wire-routing algorithm for a building-block LSI which can achieve perfect wirability and enables a design automation of an LSI layout pattern without any human supports.
Abstract: This paper deals with a wire-routing algorithm for a building-block LSI. This algorithm has several features which sharply define it from previous techniques. The most noteworthy one among them is that it can achieve perfect wirability. This feature enables a design automation of an LSI layout pattern without any human supports.

11 citations


Book ChapterDOI
01 Jan 1977
TL;DR: This chapter discusses a cubical representation for multi-valued switching functions and, using this notation, computer-oriented algorithms are presented for simplifying multi- valued switching functions.
Abstract: Publisher Summary The technology has moved into the medium scale integration (MSI) and large scale integration (LSI) areas. One of the most important problems is the pin limitation of the integrated circuits. Multi-valued logic allows each input pin to accept and each output pin to deliver more information. For the same amount of information transfer, the total number of pins required in an integrated circuit chip containing multi-valued logic elements is less than that of an integrated circuit chip with binary elements. Recent development and future speculation of design automation have indicated that computer-aided logic design is the important goal to achieve. The minimization of switching functions by a digital computer has been found to be useful for designing random and array logic. For the functions with a large number of variables, the use of a computer for minimization becomes a must. This chapter discusses a cubical representation for multi-valued switching functions and, using this notation, computer-oriented algorithms are presented for simplifying multi-valued switching functions.

8 citations


Journal ArticleDOI
01 Jul 1977

6 citations


Journal ArticleDOI
TL;DR: CAD methods for I/SUP 2/L circuits that permit the use of existing, tried CAD programs are described and illustrated, and their application in the design of the I/Sup 2-L basic gate, computer simulation of I/ SUP 2/ L logic circuits, interconnection pattern generation, and preparation of a final layout plan are illustrated.
Abstract: Thanks to the simple, regular structure of its basic gates, integrated injection logic (I/SUP 2/L) is particularly suited to automated design (CAD) procedures for evolving large-scale integrated digital circuits. This paper describes CAD methods for I/SUP 2/L circuits that permit the use of existing, tried CAD programs, and illustrates their application in the design of the I/SUP 2/L basic gate, computer simulation of I/SUP 2/L logic circuits, interconnection pattern generation, and preparation of a final layout plan.

4 citations


Proceedings ArticleDOI
24 Feb 1977
TL;DR: Requirements for the design verification portions of a DA system, and the capabilities of the new AIDS DA system designed to meet these requirements are described, and Examples of AIDS worst case timing analysis capabilities are presented.
Abstract: The increased complexity of advanced, microprocessor based digital systems coupled with ever present emphasis on low system development cost and schedule, has necessitated a re-evaluation of digital Design Automation (DA) systems requirements and definition of appropriate CAD program developments to meet these needs. Requirements for the design verification portions of a DA system are presented, and the capabilities of the new AIDS DA system designed to meet these requirements are described. Examples of AIDS worst case timing analysis capabilities are presented and a problem associated with existing worst case analysis methods is identified.

3 citations


Journal ArticleDOI
TL;DR: This paper presents a comprehensive state-of-the-art survey of the interconnection problem of large-scale circuits using design automation and focuses on the relatively new results as well as unreported results in progress.
Abstract: This paper presents a comprehensive state-of-the-art survey of the interconnection problem of large-scale circuits using design automation. The different types of routers in existence, as well as the implementation of some relevant algorithms are mentioned. The topological approach to layout design including applications of known results in Euclidean metric and some new results in rectilinear or Manhattan metric of topological invariants like thickness, are considered. The trend of future research and some of the important problems that demand attention, especially in the routing of multinets in multi-layers are cited. Attention is directed to the relatively new results as well as unreported results in progress, while the older results are adequately mentioned or referenced.

3 citations


Proceedings ArticleDOI
01 Jan 1977
TL;DR: It is shown that the algorithm to be implemented and the hardware design style account for 90 percent of the variation in the results, and selecting the design style is the most important parameter for a design automation system.
Abstract: This paper describes an experiment statistically designed to gather data on designers' performances in digital design situations. Results of the experiment not only provide data by which to calibrate the results of register transfer level computer aided design algorithms but also the variance to be expected among designers given identical tasks. The experimental techniques described here are applicable to other non-optimal algorithms such as wire routing.

Proceedings ArticleDOI
01 Jan 1977
TL;DR: An implemented system working from Design Automation logic files for testing very dense printed circuit boards with multi-pin TTL integrated circuit packages with a high degree of confidence in the tested boards is described.
Abstract: Described is an implemented system working from Design Automation logic files for testing very dense printed circuit boards with multi-pin TTL integrated circuit packages. Essential objectives sought were economy in test generation, ease and economy in diagnostics and a high degree of confidence in the tested boards. The objectives have been achieved by testing the assembled boards in small functional blocks using 1000 simultaneous probe contacts with the signal nets.

Journal ArticleDOI
TL;DR: The manufacturing-related tasks in the engineering design of digital systems are those processes which translate a logic design into a functioning physical system.
Abstract: The manufacturing-related tasks in the engineering design of digital systems are those processes which translate a logic design into a functioning physical system. That is, they begin with a description of the system as an interconnection of logic units (such as gates, flip-flops, counters, memories, ALU's, etc.) transforming it into a description of the placement of physical modules and the wiring which interconnects specific terminals on these modules. This portion of the design process has been the one which first saw substantial application of computing, vastly improving the speed, accuracy and capacity of the design organization. It is in this area still that the bulk of the production digital design automation systems are categorized.

Journal ArticleDOI
TL;DR: It is the author's intent to address the basic content philosophy and requirements related to the development of the hardware oriented segments of this curriculum.
Abstract: The digital logic course area includes the following four components: digital design concepts; digital logic devices; microprocessor systems; and digital design automation. It is the author's intent to address the basic content philosophy and requirements related to the development of the hardware oriented segments of this curriculum.

Proceedings ArticleDOI
01 Jan 1977
TL;DR: The contents of this paper will highlight the middle system of the NODAL-SWESS-SPIDER CAD/CAM network that supports and/or controls design engineering information and manufacturing processes.
Abstract: Western Electric in conjunction with Bell Laboratories has implemented a design through manufacture user orientated design automation system for Electronic Switching Equipment. The contents of this paper will highlight the middle system of the NODAL-SWESS-SPIDER CAD/CAM network that supports and/or controls design engineering information and manufacturing processes.

01 Dec 1977
TL;DR: A design automation system for digital systems that promotes a structured design approach both in logic design phase and in the physical implementation phase is described.
Abstract: : This paper describes a design automation system for digital systems that promotes a structured design approach both in logic design phase and in the physical implementation phase. (Author)

ReportDOI
31 Mar 1977
TL;DR: This basic and generally applicable advance in digital design technology may be expected to affect quite favorably all complex digital systems developments.
Abstract: Structured computer-aided digital logic design is defined and an example of it is given, the S-1 Design System. It is noted that such a system has resulted in a very large reduction in the amount of designer effort required to complete the design of a large-scale digital processing system in the first exercise of its capabilities. This basic and generally applicable advance in digital design technology may be expected to affect quite favorably all complex digital systems developments. 3 figures.