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The Bell System Technical Journal (1922-1983)

The scientific discoveries and technological innovations produced by Bell System research and engineering were critical not only to the evolution of global telecommunications but, more widely, they had a considerable impact on the technological base of the global economy and, indeed, on our daily lives.



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Bell System Technical Journal, 23: 3. July 1944 pp 282-332. Mathematical Analysis of Random Noise. (Rice, S.O.)
Topics: random, noise, probability, function, average, theorem, spectrum, interval, density, mathematical,...
Bell System Technical Journal, 48: 5. May-June 1969 pp 1249-1292. The Chirp z-Transform Algorithm and Its Application. (Rabiner, Lawrence R.; Schafer, Ronald W. ; Rader, Charles M.)
Topics: fourier, transform, chirp, discrete, algorithm, samples, frequency, contour, fast, magnitude,...
Bell System Technical Journal, 32: 2. March 1953 pp 406-424. A Study of Non-Blocking Switching Networks. (Clos, Charles)
Topics: crosspoints, array, switching, equation, intermediary, outputs, inputs, switches, switch, input,...
Bell System Technical Journal, 35: 4. July 1956 pp 917-926. A New Interpretation of Information Rate. (Kelly, J.L., Jr.)
Topics: bets, gambler, log, transmitted, exponential, probability, rate, symbol, transmission,...
Bell System Technical Journal, 28: 1. January 1949 pp 59-98. The Synthesis of Two Terminal Switching Circuits. (Shannon, Claude E.)
Topics: functions, variables, function, theorem, switching, network, elements, circuits, circuit,...
Bell System Technical Journal, 30: 1. January 1951 pp 50-64. Prediction and Entropy of Printed English. (Shannon, C.E.)
Topics: entropy, prediction, text, frequencies, probabilities, probability, letters, letter, rectangular,...
Bell System Technical Journal, 39: 4 July 1960 pp 745-808. The Theory and Design of Chirp Radars (Klauder, J.R.; Price, A.C.; Darlington, S.; Albersheim, W.J.)
Topics: signal, chirp, pulse, frequency, network, weighting, amplitude, radars, output, linear, system...
Bell System Technical Journal, 57: 6. July-August 1978 pp 1905-1929. The UNIX Time-Sharing System. (Ritchie, D.M.; Thompson, K.)
Topics: file, system, unix, user, program, files, directory, command, device, programs, operating system,...
Bell System Technical Journal, 15: 1. January 1936 pp 39-62. Magnetic Measurements at Low Flux Densities Using the Alternating Current Bridge. (Legg, Victor E.)
Topics: eddy, core, resistance, current, hysteresis, loss, flux, magnetic, permeability, inductance, system...
Bell System Technical Journal, 7: 3. July 1928 pp 535-563. Transmission of Information. (Hartley, R.V.L.)
Topics: transmission, selections, symbols, wave, steady, transmitted, system, frequency, technical journal,...
Bell System Technical Journal, 37: 3. May 1958 pp 711-718. Measurement of Sheet Resistivities with the Four-Point Probe. (Smits, F.M.)
Topics: resistivities, resistivity, probe, infinite, voltage, finite, measurement, sheet, sample,...
Bell System Technical Journal, 16: 1. January 1937 pp 35-44. The Physical Reality of Zenneck's Surface Wave. (Wise, W. Howard)
Topics: wave, surface, zenneck, asymptotic, series, sin, tilt, plane, vertical, dipole, wave antennas,...
Bell System Technical Journal, 16: 1. January 1937 pp 45-75. Radio Propagation Over Plane Earth - Field Strength Curves. (Burrows, Charles R.)
Topics: antenna, equation, antennas, vertical, field, ground, curves, polarization, strength, propagation,...
Bell System Technical Journal, 47: 5. May-June 1968 pp 623-650. Design of Monopulse Antenna Difference Patterns with Low Sidelobes. (Bayliss, E.T.)
Topics: sidelobe, pattern, aperture, difference, sidelobes, antenna, asymptotic, function, angle,...
Bell System Technical Journal, 10: 4. October 1931 pp 656-683. Developments in Short-Wave Directive Antennas. (Bruce, E.)
Topics: antenna, antennas, directive, horizontal, wire, vertical, tilt, signal, directivity, wave, vertical...
Bell System Technical Journal, 45: 9. November 1966 pp 1563-1581. Bounds for Certain Multiprocessing Anomalies. (Graham, R.L.)
Topics: task, tasks, multiprocessing, processor, processors, list, executing, anomalies, execute, empty,...
Bell System Technical Journal, 57: 6. July-August 1978 pp 1899-1904. UNIX Time-Sharing System: Forward. (McIlroy, M.D.; Pinson, E.N.; Tague, B.A.)
Topics: unix, system, operating, programs, bell, programming, software, tools, language, program, operating...
Bell System Technical Journal, 44: 4. April 1965 pp 725-729. B.S.T.J. Brief: On the Simultaneous Measurement of a Pair of Conjugate Observables. (Arthurs, E.; Kelly, J. L. Jr.)
Topics: measurement, meter, system, gaussian, interaction, ideal, wave, joint, variances, observables,...
Bell System Technical Journal, 62: 5. May-June 1983 pp 1273-1309. Off-Line Quality Control in Integrated Circuit Fabrication Using Experimental Design. (Phadke, M.S.; Kackar, R.N.; Speeney, D.V.; Grieco, M.J.)
Topics: wno, factors, factor, levels, bake, squares, optimum, wafer, mask, sum, developing time, bake...
Bell System Technical Journal, 27: 4 October 1948 pp 623-656. A Mathematical Theory of Communication (Shannon, C.E.)
Topics: entropy, log, ensemble, probability, functions, power, noise, theorem, function, continuous,...
Bell System Technical Journal, 30: 1. January 1951 pp 33-49. Television by Pulse Code Modulation. (Goodall, W.M.)
Topics: code, digits, pcm, amplitude, system, transmission, pulses, signal, system technical, quantized,...
Bell System Technical Journal, 34: 1 January 1955 pp 5-103. Behavior and Applications of Ferrites in the Microwave Region (Fox, A.G.; Miller, S.E.; Weiss, M.T.)
Topics: ferrite, phase, magnetic, rotation, polarized, waveguide, field, dielectric, loss, faraday, faraday...
Bell System Technical Journal, 29: 3. July 1950 pp 295-342. Principles and Applications of Waveguide Transmission. (Southworth, George C.)
Topics: wave, force, electric, transmission, waves, waveguide, lines, magnetic, vector, reflection,...
Bell System Technical Journal, 3: 3. July 1924 pp 508-524. Vacuum Tube Oscillators-A Graphical Method of Analysis. (Horton, J.W.)
Topics: frequency, voltage, phase, circuit, curve, curves, junction, amplifier, amplitude, equilibrium,...
Bell System Technical Journal, 41: 3. May 1962 pp 877-884. On Non-Computable Functions. (Rado, T.)
Topics: turing, computable, entries, valid, score, entry, machine, binary, binary turing, functions, bell...
Bell System Technical Journal, 27: 1. January 1948 pp 44-57. Electron Beam Deflection Tube for Pulse Code Modulation . (Sears, R.W.)
Topics: beam, grid, electron, aperture, deflection, quantizing, pulse, code, tube, plate, output plate,...
Bell System Technical Journal, 2: 2. April 1923 pp 53-89. Machine Switching Telephone System for Large Metropolitan Areas. (Craft, E.B.; Morehouse, L.F.; Charlesworth, H.P.)
Topics: switching, selector, subscriber, office, manual, selectors, machine, sender, trunks, telephone,...
Bell System Technical Journal, 28: 4. October 1949 pp 656-715. Communication Theory of Secrecy Systems. (Shannon, C.E.)
Topics: key, secrecy, message, systems, probabilities, system, equivocation, cryptogram, messages, cipher,...
Bell System Technical Journal, 57: 5. May-June 1978 pp 1449-1474. Fault Modeling and Logic Simulation of CMOS and MOS Integrated Circuits. (Wadsack, R.L.)
Topics: faults, logic, cmos, gate, modeling, faulted, output, fault, circuit, model, truth table, unit...
Bell System Technical Journal, 36: 1 January 1957 pp 277-292. Power-Feed System for the Newfoundland-Nova Scotia Link (Thomas, J.F.P.; Kelly, R.)
Topics: equipment, voltage, equipments, current, output, link, power, cable, slave, master, power...
Bell System Technical Journal, 60: 6. July-August 1981 pp 1131-1166. No. 4 ESS: Digital Interface. (Hoppner, K.M.; Mann, H. ; Panyko, S.F.; VanZweden, J. )
Topics: diu, signaling, dif, controller, data, dius, frame, interface, digroup, parity, tmt lsi, time...
Bell System Technical Journal, 20: 4. October 1941 pp 415-433. The History of Electrical Resonance. (Blanchard, Julian)
Topics: resonance, electrical, patent, circuit, spark, leyden, condenser, alternating, discharge, current,...
Bell System Technical Journal, 41: 4. July 1962 pp 1337-1346. A Method for Simplifying Boolean Functions. (Scheinman, A.H.)
Topics: prime, implicants, numbers, boolean, function, residues, simplifying, decimal, functions, method,...
Bell System Technical Journal, 52: 1. January 1973 pp 101-115. Crosstalk in Uniformly Coupled Lossy Transmission Lines. (Isaacs, J.C. Jr. ; Strakhov, N.A.)
Topics: transmission, crosstalk, lines, formulas, lossy, frequency, coupled, coupling, voltages, disturbed,...
Bell System Technical Journal, 18: 1. January 1939 pp 76-118. Crossbar Dial Telephone Switching System. (Scudder, F.J.; Reynolds, J.N.)
Topics: crossbar, subscriber, sender, terminating, switch, incoming, marker, link, trunk, switches,...
Bell System Technical Journal, 3: 2. April 1924 pp 324-346. Certain Factors Affecting Telegraph Speed. (Nyquist, H.)
Topics: wave, current, signal, rectangular, telegraph, voltage, frequency, codes, morse, sine, technical...
Bell System Technical Journal, 51: 6. July-August 1972 pp 1199-1232. Pulse Propagation in Multimode Dielectric Waveguides. (Marcuse, D.)
Topics: modes, pulse, coupling, guided, waveguide, loss, multimode, mode, propagation, radiation, bell...
Bell System Technical Journal, 36: 3. May 1957 pp 653-709. Instantaneous Companding of Quantized Signals. (Smith, Bernard)
Topics: signal, companding, quantizing, signals, power, instantaneous, quantized, error, compression,...
Bell System Technical Journal, 11: 1. January 1932 pp 126-147. Regeneration Theory. (Nyquist, H.)
Topics: integral, amplifier, values, expression, lim, curve, network, integration, regeneration, integrand,...
Bell System Technical Journal, 2: 3. July 1923 pp 101-111. Permalloy, A New Magnetic Material of Very High Permeability. (Arnold, H.D.; Elmen, G.W.)
Topics: permalloy, permeability, magnetic, cent, properties, magnetizing, alloys, nickel, alloy,...
Bell System Technical Journal, 5: 4. October 1926 pp 529-538. Radio Signaling System for the New York Police Department. (Anderson, S.E.)
Topics: receiver, signaling, selector, relay, radio, signal, tube, system, circuit, transmitter, york...
Bell System Technical Journal, 52: 10. December 1973 pp 1907-1913. B.S.T.J. Briefs: Perturbation Calculations of Rain-Induced Differential Attenuation and Differential Phase Shift at Microwave Frequencies. (Morrison, J.A.; Chu, T.S.)
Topics: perturbation, differential, matching, equivolumic, shift, attenuation, sphere, phase, spherical,...
Bell System Technical Journal, 51: 6. July-August 1972 pp 1133-1145. Network for Block Switching of Data. (Pierce, J.R.)
Topics: loop, block, data, network, transmission, user, blocks, loops, buffer, destination, message bits,...
Bell System Technical Journal, 32: 6. November 1953 pp 1469-1492. Selenium Rectifiers--Factors in Their Application. (Gramels, J.)
Topics: selenium, voltage, rectifier, stack, aging, cell, cells, stacks, rated, rms, selenium cells,...
Bell System Technical Journal, 22: 3. October 1943 pp 269-277. Effect of Feedback on Impedance. (Blackman, R.B.)
Topics: feedback, impedance, terminals, fop, connected, amplifier, tube, grid, network, formula, bell...
Bell System Technical Journal, 3: 1. January 1924 pp 1-42. Relays in the Bell System. (Shackleton, S.P.; Purcell, H.W.)
Topics: relay, relays, circuit, bell, system, stepping, current, armature, telegraph, contact, type relay,...
Bell System Technical Journal, 51: 8. October 1972 pp 1675-1699. D2 Channel Bank: Multiplexing and Coding. (Dammann, C.L.; McDaniel, L.D.; Maddox, C.L.)
Topics: coding, coder, multiplexing, input, code, compression, stage, binary, bell system, polarity,...
Bell System Technical Journal, 27: 3. July 1948 pp 379-423. A Mathematical Theory of Communication. (Shannon, C.E.)
Topics: log, probability, channel, entropy, source, probabilities, sequences, symbols, discrete, sequence,...
Bell System Technical Journal, 17: 3. July 1938 pp 458-474. Stabilized Feedback Oscillators. (Stevenson, G.H.)
Topics: frequency, phase, feedback, stabilized, equation, circuit, tube, oscillation, coupling, network,...
Bell System Technical Journal, 43: 3. May 1964 pp 1123-1147. A Theory of a Unilateral Parametric Amplifier Using Two Diodes. (Hamasaki, J.)
Topics: amplifier, idler, unilateral, frequency, parametric, bandwidth, noise, signal, exp, impedance,...
Bell System Technical Journal, 57: 6. July-August 1978 pp 1947-1969. UNIX Time-Sharing System: A Retrospective. (Ritchie, D.M.)
Topics: system, unix, file, files, user, bell, program, programs, device, operating, virtual address,...
Bell System Technical Journal, 61: 7. September 1982 pp 1555-1564. Papers by Bell Laboratories Authors.
Topics: phys, appl, rev, chem, soc, sci, optical, ieee, photo, compon, laboratories authors, ieee info,...
Bell System Technical Journal, 43: 4. July 1964 pp 1783-1809. Hollow Metallic and Dielectric Waveguides for Long Distance Optical Transmission and Lasers. (Marcatili, E.A.J.; Schmeltzer, R.A.)
Topics: modes, attenuation, dielectric, hollow, guide, curvature, optical, radius, mode, field, optical...
Bell System Technical Journal, 50: 1. January 1971 pp 135-165. Inherent Load-Balancing in Step-by-Step Switching Systems. (Buchner, M.M. Jr.; Neal, S.R.)
Topics: selectors, capacity, graded, tables, selector, grading, finders, model, trunks, system, complete...
Bell System Technical Journal, 15: 2. April 1936 pp 248-283. The Proportioning of Shielded Circuits for Minimum High-Frequency Attenuation. (Green, E.I.; Leibe, F.A.; Curtis, H.E.)
Topics: conductors, attenuation, shielded, ratio, circuit, conductor, coaxial, optimum, diameter, shield,...
Bell System Technical Journal, 4: 3. July 1925 pp 512-513. Contributors to this Issue.
Topics: telephone, electric, telegraph, western, development, brigham, university, engineering, cornell,...
Bell System Technical Journal, 33: 3. May 1954 pp 789-796. Bell System Technical Papers Not Published in this Journal.
Topics: bell, telephone, technical, germanium, carrier, letter, electronics, transistor, solute,...
Bell System Technical Journal, 33: 3. May 1954 pp 579-659. Topics in Guided-Wave Propagation Through Gyromagnetic Media: Part I - The Completely Filled Cylindrical Guide. (Suhl, H.; Walker, L.R.)
Topics: curves, propagation, curve, mode, gyromagnetic, equations, modes, solution, magnetic, media,...
Bell System Technical Journal, 36: 3. May 1957 pp 593-626. Radio Propagation Fundamentals. (Bullington, Kenneth)
Topics: transmission, antenna, frequency, radio, diffraction, loss, propagation, fading, signal, median,...
Bell System Technical Journal, 4: 3. July 1925 pp 349-354. Oliver Heaviside. (Gill, F.)
Topics: heaviside, inductance, waves, telegraph, oliver, coils, engineers, electrical, propagation,...
Bell System Technical Journal, 61: 4. April 1982 pp 451-489. No. 10A Remote Switching System: Peripheral Systems Architecture and Circuit Design. (Adrian, J.M.; Freimanis, L.; Sparber, R.G.)
Topics: rss, circuit, network, voltage, carrier, metallic, current, interface, converter, junctor, data...
Bell System Technical Journal, 3: 3. July 1924 pp 495-507. Some Very Long Telephone Circuits of the Bell System. (Nance, H.H.)
Topics: repeater, circuit, circuits, impedance, repeaters, signaling, angeles, transmission,...
Bell System Technical Journal, 2: 1. January 1923 pp 1-46. Theory and Design of Uniform and Composite Electric Wave-filters. (Zobel, Otto J.)
Topics: impedance, impedances, transmitting, frequency, equivalent, frequencies, shunt, series, constant,...
Bell System Technical Journal, 7: 1. January 1928 pp 90-105. The Diffraction of Electrons by a Crystal of Nickel. (Davisson, C.J.)
Topics: beam, beams, diffraction, electron, bombarding, laue, electrons, crystal, scattering, colatitude,...
Bell System Technical Journal, 1: 2. November 1922 pp 43-55. The Heaviside Operational Calculus. (Carson, John R.)
Topics: operational, solution, heaviside, equations, equation, formula, calculus, integral, asymptotic,...
Bell System Technical Journal, 29: 1 January 1950 pp 94-104. Realization of a Constant Phase Difference (Darlington, Sidney)
Topics: phase, tan, constant, corresponding, roots, networks, elliptic, modulus, function, approximation,...
Bell System Technical Journal, 36: 1 January 1957 pp 103-138. Repeater Production for the North Atlantic Link (Lamb, H.A.; Heffner, W.W.)
Topics: repeater, inspection, capacitors, operations, manufacturing, repeaters, manufacture, required,...
Bell System Technical Journal, 3: 2. April 1924 pp 238-258. Humidity Recorders. (Wheeler, E.B.)
Topics: humidity, recorder, bulb, relative, wet, conditions, outdoor, temperature, indoor, humidities,...
Bell System Technical Journal, 39: 5. September 1960 pp 1253-1265. Capacity of a Burst-Noise Channel. (Gilbert, E.N.)
Topics: channel, probability, digits, probabilities, markov, parameters, capacity, binary, runs, symmetric,...
Bell System Technical Journal, 41: 6. November 1962 pp 1875-1877. Contributors to this Issue.
Topics: bell, sigma, engaged, laboratories, kappa, development, tau, telephone, member, data, bell...
Bell System Technical Journal, 47: 9. November 1968 pp 1957-1970. A State Variable Method of Circuit Analysis Based on a Nodal Approach. (Parkin, R.E.)
Topics: node, nodes, capacitor, circuit, nodal, appendix, network, matrix, connected, capacitors,...
Bell System Technical Journal, 57: 4. April 1978 pp 941-963. Loop Plant Modeling: Economic Design of Distribution Cable Networks. (Stiles, J.A.)
Topics: cable, additional, pairs, cost, costs, serving, terminal, living, relief, distribution,...
Bell System Technical Journal, 61: 8. October 1982 pp 1911-1917. The Detection of Long Error Bursts During Transmission of Video Signals. (Janac, K.; Sloane, N.J.A.)
Topics: burst, length, code, bursts, transmission, threshold, error, channel, digital, multiplexer, error...
Bell System Technical Journal, 38: 4. July 1959 pp 933-967. Variable-Length Binary Encodings. (Gilbert, E.N.; Moore, E.F.)
Topics: encoding, prefix, alphabetical, encodings, codes, digits, code, binary, sequence, theorem, bell...
Bell System Technical Journal, 44: 7. September 1965 pp 1487-1510. Some Extensions of Nyquist's Telegraph Transmission Theory. (Gibby, R.A.; Smith, J.W.)
Topics: amplitude, transmission, phase, signaling, system, sin, pulse, constraints, frequency, conditions,...