Transactions of the I.R.E. Professional Group on Electronic Computers

Issue 4 • Dec. 1954

Filter Results

Displaying Results 1 - 13 of 13
  • Contents

    Publication Year: 1954, Page(s): 1
    Request permission for reuse | PDF file iconPDF (112 KB)
    Freely Available from IEEE
  • The use of a reflected code in digital control systems

    Publication Year: 1954, Page(s):1 - 6
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1055 KB)

    The reflected (Gray) binary code has previously been used primarily in analog-to-digital conversion applications. However, the reflected binary code has, in addition, characteristics which strongly recommend it as a design factor in the synthesis of digital elements within closed-loop control systems. This paper describes several designs of typical reflected binary switching circuits. These switch... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A transistorized pulse code modulator

    Publication Year: 1954, Page(s):7 - 12
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1023 KB)

    A pulse code modulator is described in which transistors are the only active circuit components. The functions of quantizing and encoding the signal are performed entirely by semiconductor diodes, using transistor amplifiers where necessary to increase the signal level. The readout is obtained from a set of “and” gates, each gate having as one of its inputs an output from the encoding system, and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A radio-frequency nondestructive readout for magnetic-core memories

    Publication Year: 1954, Page(s):12 - 15
    Cited by:  Papers (5)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (751 KB)

    It is possible to read information nondestructively from two- and three-dimensional magnetic-core digital computer memories in several microseconds by exciting selected cores with rf currents. If two co-ordinate lines of a core in a memory array plane are driven at slightly different frequencies, a beat-frequency signal is generated whose phase may take on one of two values which are separated by ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Time-delay networks for an analog computer

    Publication Year: 1954, Page(s):16 - 18
    Cited by:  Papers (7)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    Time-delay networks suitable for an analog computer are designed by considering the location of poles and zeros in their transfer functions. The curve of phase shift against frequency should be a straight line. The negative slope of this curve is the time delay. Even-order derivatives of the curve automatically vanish at zero frequency. Roots of the transfer function are chosen to make vanish simi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A stabilized driftless analog integrator

    Publication Year: 1954, Page(s):19 - 20
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    A new chopper-stabilized analog integrator circui, has been developed which, at the cost of two passive elementts enables the stabilizer amplifier to operate on the output drift due to input current as well as the drift due to unbalance. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A desk-model electronic analog computer

    Publication Year: 1954, Page(s):20 - 24
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (981 KB)

    A description is given of an analog computer comparable in size to an automatic desk calculator. By combining the techniques of electronic and electric analogs, a high problem-solving capacity is achieved in a minimum of space. Nine stable high-gain dc amplifiers are provided, each of which can be made to produce a variety of functional responses. This is accomplished by allowing the operator to b... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 1954 IRE National Convention Electronic Computer Session III

    Publication Year: 1954, Page(s):24 - 31
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (2137 KB)

    The third Electronic Computer Session at the 1954 IRE National Convention was an experimental discussion on how to make computers more autonomous and how to make them self-repairing. The following pages are a transcript of that session, edited to make it more suitable for print. Each speaker's remarks have been edited by the speaker, which is why it has taken so long for this publication to appear... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Contributors

    Publication Year: 1954, Page(s): 31
    Request permission for reuse | PDF file iconPDF (245 KB)
    Freely Available from IEEE
  • PGEC news

    Publication Year: 1954, Page(s): 32
    Request permission for reuse | PDF file iconPDF (280 KB)
    Freely Available from IEEE
  • Reviews of current literature

    Publication Year: 1954, Page(s):33 - 44
    Request permission for reuse | PDF file iconPDF (1577 KB)
    Freely Available from IEEE
  • Transactions of the IRE Professional Group on Electronic Computers index to volume EC-3 - 1954

    Publication Year: 1954, Page(s):45 - 46
    Request permission for reuse | PDF file iconPDF (220 KB)
    Freely Available from IEEE
  • Institutional listings

    Publication Year: 1954, Page(s): 1
    Request permission for reuse | PDF file iconPDF (193 KB)
    Freely Available from IEEE

Aims & Scope

This Transactions ceased publication in 1954. The current retitled publication is 

IEEE Transactions on Computers.

Full Aims & Scope