An ignition system for an internal combustion engine including a pair of unilateral current devices and a pair of condensers connected in circuit with the primary of the ignition coil so as to obtain an improved ignition system.

The electronic printer which records the characters or indicia including alphanumerics, symbols and any other representations comprises a plurality of recording needles each of which moved with respect to a recording medium which is advanced at the right angle to the direction of movement of the recording needles and recording position detecting means associated with a movable member which moves in synchronism with the recording needles. In response to the detection of the recording position, si...

A device for connecting a conductor electrically to one out of a number of conductor by means of a photoconductive or semi-conductive material and a light or electron beam. The particular output to be connected to the common input is chosen by selecting the direction or the spatial position of a light beam. The resistance of the connection depends on the intensity of the beam.

In a program controlled electronic computer the address of the return point (or main program re-entry storage location) from a program subroutine to the main program is specified by information in a fixed address program storage location, which location is loaded by a special instruction placed in the main program ahead of the branching point. Each subroutine may be contained in an individual record card, which upon being fed into the computer causes said subroutine to be executed.

An electronic relay having two push-pull oscillators connected in series. Each oscillator has two transistors and a transformer having, in addition to its input and feedback windings, a control winding. Each oscillator is controlled by a latch circuit which can prevent oscillation by connecting a low resistor across the control winding. The latch circuits are interconnected so that only one oscillator can oscillate at any time.

This disclosure relates to a static type of opto-electronic scanner for sensing the coded markings of an information field. The scanner includes a source of radiant energy for illuminating the information field, an optical system for directing radiant energy onto the information field and for resolving received radiant energy from the information field into separate images and an electronic pickup means for sampling and scanning the separate images to produce video signals in accordance with the...

Keyboard providing character coded information with each key depression is described. Information storage apparatus is included within the keyboard for storing one or more discrete character codes. By suitably controlling the access to the stored information, a plurality of multicharacter messages may be obtained with each key depression. The memory may be of the read-write type permitting security control of the data transmitted between the keyboard of a terminal and the central processing unit...

A phase or polarity selective electronic control or amplification circuit requiring no reactive components and capable of transforming a single-ended input signal into out-of-phase output signals. The circuit includes switching or gating means to which the input signal is applied and which control one or more output circuit means. When an input signal of a first phase is applied to the switching or gating means, one or more output circuit means are permitted to pass current. When an input signal...

The application describes an electronic organ in which a rhythmic production of various chords and/or individual notes is triggered whenever an individual key is depressed. This mode of operation is achieved by use of a rhythm producer, a tone generator, and appropriate switching and control apparatus.

An electronic timepiece which comprises a time standard that delivers a periodic signal of predetermined frequency, an electronic divider, an electromechanical converter controlled by the divider, time display means actuated by the converter, a two-phase voltage generator controlled by the time standard and a two-phase network supplied by the generator, the various stages of the divider being associated with one or the other of the network phases.