A frame-setting apparatus that is designed to be used in leveling frame structures having adjacent side-frame members that must be set in a close parallel relationship to their opposite sides, whether they be in a vertical or a horizontal position, wherein the apparatus comprises an elongated level having a plurality of spirit-level units spaced along the length of the level in the usual manner to provide a level reading in both a vertical and a horizontal position, and wherein flat elongated se...

A power amplifier valve with a grid is disclosed having improved reliability of operation and lifetime of the valve. A screen grid of a tetrode has a mesh grid with vertical or oblique rods in pyrolytic graphite. According to the invention, the rods are provided with a greater width at the bottom of the grid near the output of the valve where the high-frequency currents are greatest.

Disclosed is a method for integrating an image sensor capable of removing a flicker noise without causing any burdens on a hardware due to setting up additional logics. The method for integrating an exposure time of an image sensor employing a line scan method, including the steps of: performing an integration to a first line when an integer multiple of a light source frequency is different from an integration time; and performing an integration to a second line at a phase substantially equal to...

A series of time delay integration TDI stages each integrate a photocurrent from a separate detector such as detectors in an array. In a first stage 20, a first integrator is initialized with a fixed bias 30, and integrates a signal from a first detector 22 during a first time interval. Next, a reset switch 26n causes that integrated first detector signal to bias a second integrator 24n. During a second integration interval, the second integrator integrates a signal from a second detector 22n. M...

An ink dispensing roll comprises a generally cylindrical member having a plurality of holes communicating with an interior annular reservoir and a microporous ink impregnated sleeve mounted about the cylindrical member. The annular reservoir is in liquid communication with a larger reservoir charged with ink that flows by gravity into the annular reservoir and then into the microporous sleeve.

A timing generator for an electronic image sensor includes one or more memory based tables for controlling timing events that occur within one or more different types of image sensor lines, and one or more memory based tables for controlling timing events that occur within one or more different types of image sensor frames.

A column slice of a CMOS TDI sensor includes a column bus, a column of pixels, plural first switches, a column of accumulators, plural second switches, plural third switches and output bus 39. Each of the plural first switches is coupled between the column bus and a corresponding pixel of the column of pixels, and each of the plural second switches is coupled between the column bus and a corresponding accumulator of the column of accumulators. In operation, only one switch at a time of plural fi...

A digital wireless communications system which eliminates intersymbol interference in a transmitted signal using a plurality of precoders in a transmitter thereof and a method of using the same. The digital wireless communications system includes a receiver having an antenna array for receiving transmitted digitally-encoded signals, and a transmitter for transmitting the digitally-encoded signals. The transmitter has a plurality of precoders which eliminate intersymbol interference in the transm...

A multi-chamber container comprising a plurality of liquid drainage tubes, a receptacle having a plurality of separate liquid collection compartments, and means for separately connecting each of the drainage tubes to one of the separate compartments in order that liquid passes from the drainage tubes to the compartments for retention therein.

The problem of moire is eliminated by randomizing the vertical and horizontal pattern of webs between apertures of a shadow mask. A cathode ray tube is provided having a color phosphor screen structure comprising a plurality of arrays of substantially parallel lines. The lines in each array are adapted to emit light of a particular color. A shadow mask, having a plurality of substantially parallel rows of apertures that are elongated in the direction of the rows and separated from adjacent apert...