These four 'Quadruplex' signals are then sent to the control surface actuator, and the surface begins to move.

Court of Governors is a 3-story quadruplex with a 4-room quadrant.

After creating the quadruplex Edison was unsure how to set the price.

Apparently, however, it was unsuccessful even as a quadruplex.

The quadruplex has not as a rule the same working efficiency that four separate wires have.

The Quadruplex format dominated the broadcast industry for a quarter of a century.

The quadruplex systems were unable to display video from tape except while playing at normal speed.

The programs were recorded onto 2 inch Quadruplex videotape.

They all led up to the quadruplex.

Once rights issues were resolved, the film was cleaned up from two-inch Quadruplex videotape masters.

It became the replacement in the professional video and television broadcast industries for the then-incumbent Quadruplex.

About this time I invented the quadruplex.

The quadruplex can repeat several times consecutively, producing an immensely stable structure.

Such a quadruplex is described as tetramolecular, reflecting the requirement of four separate strands.

The experimental low-band quadruplex recording system in use was troublesome and hard to copy.

But the nonrenewal notice profusely describes the quadruplex the Cromans want to create.

It is the demonstration of the first practical and commercially successful videotape format known as 2" Quadruplex.

These four 'Quadruplex' signals are then sent to the control surface actuator, and the surface begins to move.

At this juncture other schemes were fermenting in his brain; but the quadruplex engrossed him.

One unit - a quadruplex with its own elevator, three terraces and two fireplaces -is still available for $1.2 million.

A four and a five-ball throw would be called a quadruplex and a quintuplex, respectively.

Herein lay the germ of the Edison quadruplex.

I had paid for all the experiments on the quadruplex and exhausted the money, and I was again in straits.

This programme was recorded and edited on video tape (2" quadruplex) and not 'filmed'.

Among them was one which was issued some years afterward as Patent No. 480,567, covering his well-known quadruplex.

In 1956, Ampex introduced the first commercial Quadruplex videotape recorder, followed in 1958 by a color model.