1
Kurt Friedrich, Georg Straimer: Reflection type contactless touch switch having housing with light entrance and exit apertures opposite and facing. International Standard Electric Corporation New York NY, C Cornell Remsen Jr, Walter J Baum, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, November 16, 1971: US3621268 (47 worldwide citation)

Contactless touch switch in which an electric pulse is produced by light impinging on a photosensitive cell due to reflection of a beam of light. According to the invention the touch switch is constructed in such a manner that the beam of light normally emerges through an aperture in the touch switc ...


2
Murray Weinberg, Irving A Krause: Phase locked loop. International Telephone and Telegraph Corporation Nutley, C Cornell Remsen Jr, Walter J Baum, Paul W Hemminger, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, August 8, 1972: US3683279 (15 worldwide citation)

An oscillator in a spacecraft transponder or repeater is frequency stabilized by a phase locked loop with reference signal therefor having a frequency (N/M) F being received in the repeater from a ground station. The reference signal is processed in the repeater and returned to the ground station wh ...


3
Robert A Felsenheld: Multi-band tunable halfwave whip antenna. International Telephone and Telegraph Corporation Nutley, C Cornell Remsen Jr, Walter J Baum, Paul W Hemminger, Charles L Johnson Jr, Philip M Bolton, Isidore Togut, Edward Goldberg, Menotti J Lombardi Jr, September 5, 1972: US3689928 (13 worldwide citation)

A physically shortened halfwave antenna of the whip type is disclosed. The antenna includes a main antenna rod, a pair of helices, one helix coupled to each end of the rod, and a capacitive top load coupled to the upper one of the helices. An RF terminal is inductively coupled to the lower one of th ...


4
Arnold Albert Schellenberg: Arrangement to supervise the operation of coder and decoder circuits in a pcm-tdm system. International Standard Electric Corporation New York NY, C Cornell Remsen Jr, Walter J Baum, Paul W Hemminger, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, August 8, 1972: US3683115 (12 worldwide citation)

The coder and decoder of a terminal are placed in a closed loop excluded from the normal transmission lines during sync time and/or signalling time. During this time a low frequency test signal is applied to the coder and a comparison circuit. By gate means the output of the coder is directly couple ...


5
Robert M Scarlett: High frequency transistor structure having an impedance transforming network incorporated on the semiconductor chip. International Telephone and Telegraph Corporation Nutley, C Cornell Remsen Jr, Walter J Baum, Paul W Hemminger, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, June 20, 1972: US3671793 (10 worldwide citation)

This is a semiconductor component having an active semiconductor device formed within a substrate, and an impedance transforming network incorporated on said substrate and coupled to said device so as to reduce the effect of the device lead inductance which is common to both a circuit input and outp ...


6
Clayton L Waltermire: Fast warm-up indirectly heated cathode structure. International Telephone and Telegraph Corporation Nutley, C Cornell Remsen Jr, Walter J Baum, Paul W Hemminger, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, June 20, 1972: US3671792 (8 worldwide citation)

A tungsten heater, covered with a thin alumina layer (about 1 mil), is potted inside a molybdenum cathode cup in a sintered mass formed from a mixture of fine particles (of the order of 1-5 microns) of molybdenum and nickel in the weight ratio of at least 40 percent molybdenum, but preferably about ...


7
Harold George Webberley Warlingham, Richard Zbigniew Marlow, Karel Jan Staller: Printing mechanism with movable type wheel and hammer carriages. Creed & Company Hollingbury, C Cornell Remsen Jr, Walter J Baum, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, February 23, 1971: US3565230 (7 worldwide citation)

A printing element in the form of a continuously rotating type wheel and an associated operating element in the form of a printing hammer are disposed on opposite sides of a record medium, means are provided for causing said hammer to cooperate with said type wheel to print a selected character on s ...


8
Michel L Avignon: Frame synchronization circuit. International Standard Electric Corporation, C Cornell Remsen Jr, Rayson P Morris, Percy P Lantzy, Philip M Bolton, Isidore Togut, January 19, 1971: US3557314 (6 worldwide citation)

The framing code of a time division multiplex digital data is compared cyclically with the local framing timing signals. When the comparison results in an out-of-frame condition, this condition is stored in a flip-flop and the results of the preceding j comparisons are stored in a j -stage shift reg ...


9
George Frederick Craven: Waveguide filter. International Standard Electric Corporation New York NY, C Cornell Remsen Jr, Rayson P Morris, Percy P Lantzy, Philip M Bolton, Isidore Togut, November 16, 1971: US3621483 (5 worldwide citation)

Waveguide band-pass filters operated such that only evanescent H waves exist at the operating frequency of the system are terminated in a capacitive reactance which at the center frequency of the desired pass band is the conjugate of the positive imaginary characteristic impedance of the length of e ...


10
Samuel J DeMaio, Arthur H Magnus, James G Dunn, John Granlund: Bit synchronization system. International Telephone and Telegraph Corporation Nutley, C Cornell Remsen Jr, Walter J Baum, Percy P Lantzy, Philip M Bolton, Isidore Togut, Charles L Johnson Jr, February 23, 1971: US3566155 (4 worldwide citation)

A flip-flop is coupled to a code signal source and a bit clock source. Logic and amplifier circuitry cooperate with the flip-flop to produce two oppositely varying width modulated pulses having opposite polarity. An integrating filter algebraically combines the width modulated pulses to produce a co ...