IEEE Transactions on Communication and Electronics

Issue 75 • Nov. 1964

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Displaying Results 1 - 25 of 51
  • [Front cover]

    Publication Year: 1964, Page(s): c1
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    Freely Available from IEEE
  • Inside front cover

    Publication Year: 1964, Page(s): c2
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    Freely Available from IEEE
  • A proposed spacecraft-to-earth communications link: The unified carrier approach

    Publication Year: 1964, Page(s):593 - 603
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (9349 KB)

    This paper documents the design and performance of a proposed unified carrier, range-tracking, and communications system for cislunar ranges in which phase-locked loop techniques are used in the spacecraft to relate received and transmitted carriers coherently. The design of the composite angle-modulated carrier waveform for the spacecraft-to-ground link has been accomplished by using a statistica... View full abstract»

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  • Systems engineering for communications networks

    Publication Year: 1964, Page(s):603 - 611
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2659 KB)

    Systems engineering for a communications network is a complex art involving the proper balance among planning, service criteria, and equipment systems, as there is extensive interplay among these elements during the entire engineering effort. The objective is to plan for the optimum economic balance between the provision of channels and the provision of switching for a given set of service criteri... View full abstract»

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  • Impulse analysis and common control in an electronic telephone switching system

    Publication Year: 1964, Page(s):612 - 620
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    This paper discusses the conversion of telephone-line supervision signals into digital logic signals, and the subsequent storage and control of the dialed information, in a telephone switching system using time-division multiplex techniques. Emphasis is on the analyzed-signal timing tolerances and minimization of the logic control functions of the register. Reuse of storage elements for multiple f... View full abstract»

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  • System design parameters for electronic automatic exchange

    Publication Year: 1964, Page(s):621 - 628
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (4056 KB)

    IN DESIGNING the No. 1 Electronic Automatic Exchange (E-A-X∗), Automatic Electric Laboratories tried to anticipate requirements for many years to come with a system that would be flexible enough to accommodate smoothly any new services that might be required. Experience had shown that such a system would necessarily have many elements of common control. As the nationwide telephone syste... View full abstract»

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  • Translation with magnetic drum in electronic automatic exchange

    Publication Year: 1964, Page(s):628 - 636
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    IN COMMON-CONTROL systems, the telephone number dialed on a call merely identifies the destination of the call in terms of a uniform numbering plan; the dialed digits cannot control the switching operation directly. A translator is required in order to determine, by referring to information previously stored, the proper routing of the call and the controls required for completing the call over thi... View full abstract»

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  • Effects of primary power contacts on aerial communication plant

    Publication Year: 1964, Page(s):636 - 645
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (4072 KB)

    During 1960 a co-operative test program was conducted to study the effects of power contacts on communication plants consisting of multiple wire, open wire, cable, and associated protectors and wiring. This information is required to engineer safe joint use of higher capacity power systems and some of the newer communication facilities. The characteristics of power and communication plant under ce... View full abstract»

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  • A 4-wire solid-state switching system: Subscriber instruments

    Publication Year: 1964, Page(s):646 - 655
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (5000 KB)

    This paper will discuss four basic types of subscriber instruments for an electronic solid-state switching system which meet functional requirements of a communications complex to provide the interface between the switching-system and voice-frequency inputs; these basic types include multiline instruments, manual-and remote-controlled teletype, radio, and other unattended machines. Unique packagin... View full abstract»

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  • Switching units and trunking for electronic automatic exchange

    Publication Year: 1964, Page(s):655 - 662
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    WHEN AUTOMATIC Electric Laboratories undertook the development of the Electronic Automatic Exchange (E-A-X), the end product of the development, the switching system and its hardware, was planned to be manufacturable and economical under present conditions. The factors of reliability, maintainability, compatibility, practicability, and availability, coupled with their economic aspects, determined ... View full abstract»

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  • A 4-wire solid-state switching system: Application, concept, and configuration

    Publication Year: 1964, Page(s):662 - 667
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (8625 KB)

    A design task begun in January, 1960, has resulted in the delivery of a new 4-wire solid-state switching system. This represents the first application of a fully electronic switchboard to provide real-time switched communications in an operational military network; fixed-site and mobile switching centers, as well as a variety of special and general purpose subscriber instruments, are included in t... View full abstract»

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  • Twin-tone transistorized television transmission tester

    Publication Year: 1964, Page(s):667 - 673
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3545 KB)

    This paper describes a portable transistorized transmission test set capable of measuring small amplitude and delay distortions of television transmission facilities on a straightaway basis; it measures distortions in the 12–330-kc range bymeans of a sweeping twin-tone signal. Sync pulses are provided for clamper operation when required. View full abstract»

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  • Bell system and International telecommunications noise-measuring systems

    Publication Year: 1964, Page(s):674 - 680
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    This paper provides an analysis of the Bell System noise units, the International Telephone and Telegraph Consultative Committee (CCITT) noise units, and their absolute power and interfering relationship. Clear and concise definitions of the terms used by each are included. The weighting curves of each system, based on 1,000 cycles for the Bell System and 800 cycles for the CCITT, are included for... View full abstract»

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  • An electronic 2-wire private branch exchange

    Publication Year: 1964, Page(s):680 - 684
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2262 KB)

    This paper describes the system organization utilized in electronic private branch exchanges (PBXs) presently in production. It briefly reviews a switchboard already installed and discusses basic design philosophy. Typical system specifications are given and the relationship of the voice transmission path to the common control is examined, along with a step-by-step description of the common contro... View full abstract»

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  • A 4-wire crossbar conferencing system

    Publication Year: 1964, Page(s):685 - 688
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    The necessity that large numbers of people confer by means of communication facilities has been steadily increasing; in fact, many military communicators have indicated that such conferencing is absolutely mandatory. The system presented in this paper is a 4-wire manually controlled conference switchboard specifically designed to provide the features required for supporting such conference situati... View full abstract»

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  • Magnetic-field switching array with dry-reed contacts

    Publication Year: 1964, Page(s):688 - 692
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3248 KB)

    A magnetic-field switching array was developed in the laboratories of Siemens for application in space-division networks of telephone switching systems with electronic control. The array is controlled by two groups of coils arranged rectangularly to each other. Saturation of the reeds is utilized to ensure reliable operation. The average operating time is 1.7 milliseconds. The switching arrays whi... View full abstract»

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  • A Centrex system for areas served by independent telephone companies

    Publication Year: 1964, Page(s):692 - 695
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1740 KB)

    The term Centrex has become well-known in the industry as a designation of a dial PBX (private branch exchange) system providing certain new features and services. The name and original concept suggest centrally located equipment to serve a plurality of customers. This concept broadens to include other than centrally located installations when the same services are provided on the customer's premi... View full abstract»

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  • A new artificial cable kit

    Publication Year: 1964, Page(s):696 - 700
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    The artificial cable kit (ACK) comprises networks equivalent to definite lengths of cable, and loading coils. Each network is a lattice modified by shunt arms simulating capacitance-to-ground. Overall tolerance in impedance and propagation is held to ±2% from nominal real cable between 10 and 7,000 cps (cycles per second) by novel network design and by limiting the tolerances in network components... View full abstract»

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  • A report on some characteristics of impulse noise in telephone communication

    Publication Year: 1964, Page(s):700 - 705
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1517 KB)

    For the past few years, Bell Telephone Laboratories has been conducting an intensive study of impulse noise in switched telephone networks in order to define the statistical character of impulse noise and evaluate its impairment of digital data transmission. The study has progressed to the point where some significant parameters of the noise have been identified and sufficient data gathered on the... View full abstract»

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  • Errata

    Publication Year: 1964, Page(s): 705
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  • Bibliography of thin magnetic films: Report of the bibliography subcommitte of the nonlinear magnetics committee

    Publication Year: 1964, Page(s):706 - 726
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (5399 KB)

    A collection of 735 articles on thin magnetic films (and such variants as twistors and cylindrical films) are listed by author under the year of publication through 1963, and some 60 patents from the United States and other countries are also included. A classification code identifying seven categories has been introduced in order to facilitate search for related articles. View full abstract»

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  • Dense ferrites and their applications

    Publication Year: 1964, Page(s):726 - 736
    Cited by:  Papers (6)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (5103 KB)

    The art of making ferrites with very low porosity resulted from thorough investigations of the different processing steps in ferrite fabrication. This has been applied, with various substitutions, to different compositions in the nickel-zinc (Ni-Zn) system. At high frequencies, such as 100–3,000 mc (megacycles), dense ferrites show small losses if the permeability is measured in a steady magnetic ... View full abstract»

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  • Magnetic techniques for mechanizing a frequency detection channel at two megacycles

    Publication Year: 1964, Page(s):736 - 745
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2589 KB)

    IN A PULSED-doppler coherent-type radar system, the basic target information is relative velocity (range rate). In the air-borne system of interest in this paper, signals received from a moving target are fed from a number of range-gated receivers to a filter bank and interrogator (FBI) unit. Within this unit, target detection decisions for each range-gated receiver are determined by measuring thi... View full abstract»

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  • A feedback shift-register scaler

    Publication Year: 1964, Page(s):745 - 752
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2277 KB)

    A scaler is described which utilizes a ferrite-core shift register with linear-logic feedback. Where m is the number to be scaled by, the mechanization of this type of scaler requires an n-stage shift register, where 2r−1≥k; an m-input modulo-2 adder where m is even; and detection of a specified combination of states (word). The algorithm for designing a scaler to count to any l is give... View full abstract»

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  • The pressductor and the torductor — Two heavy-duty transducers based on magnetic stress sensitivity

    Publication Year: 1964, Page(s):752 - 758
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (3978 KB)

    Two transducers for force and stress, the pressductor and the torductor, employ magnetic stress sensitivity in different ways. The pressductor is a transducer for compressive force, composed of a large number of equal measuring elements; each of these takes its share of the force and renders a proportional contribution to the output voltage. This results in an actual force integration over the loa... View full abstract»

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Aims & Scope

This Transactions ceased publication in 1964. The current retitled publication is  IEEE Transactions on Communications.

Full Aims & Scope