A non-volatile memory device formed on a face of a semiconductor substrate which includes an array of electrically programmable read only memory cells, a Y address decoder coupled to said array and first and second sets of input/output lines coupled to said Y address decoder. Switch means isolates either the first or second set of input/output lines from the Y decoder. A programmable non-volatile memory element is coupled to programming ones of the input lines and is programmable into a programm...

A discharge circuit for discharging bit lines of an array of semiconductor memory cells in which the array of bit lines are biased from a single bias line. The discharge circuit includes a discharge switch coupled to the bias line for discharging the bit lines and the bias line and a control circuit coupled to the discharge switch operative to turn on the discharge switch in response to the voltage on the bias line rising above a first predetermined level and then to turn off the discharge switc...

A mailbox array is shown which includes a series of interconnected mailbox elements. Each of said series comprises a set of horizontally and vertically aligned mailboxes. Each of the mailboxes has a numeric designator thereupon. The first number of the designator refers to the row of the array in which the mailbox appears, the second number refers to the series of the array and the third number refers to the column of the array. Each of the numeric designators is translucent and selectively actu...

An associative array of memory cells is arranged with its read cells interleaved with its storage cells to reduce the physical space required by the array. Two rows of read cells have four rows of storage cells on each side thereof except that the uppermost row of the read cells in the array has only two rows of the storage cells thereabove and the lowermost row of the read cells in the array has only two rows of the storage cells therebelow. One half of the read cells in each row of the read ce...

An improved photodetector array in which each element of the array is provided with an integral pair of MOSFET switches, so that scanning of the m by n array can be accomplished with only m + n conductors leading from the array to scanning circuitry: an integral discrete capacitor is also included to augment the capacitance inherent in the PN junction of each diode element.

A solar array having solar cells arranged in parallel strings at the front side of a supporting substrate with the corresponding cells in the several strings arranged in rows transverse to the strings. Each cell has a rear contact surface facing and exposed through an opening in the substrate and front contact and light sensitive surfaces. The cells in each cell string are connected in electrical series by series interconnectors, each passing between a pair of adjacent cells and through the subs...

A solar array and method of its fabrication wherein the solar cells are attached to a supporting substrate and electrically joined by interconnects having end terminals attached to the cell contacts with predetermined center distances between adjacent cell-substrate attachment points and the terminal attachment points of each interconnect, such that during thermal cycling of the solar array, each interconnect and the portion of the substrate between the adjacent cell-substrate attachment points ...

A method and apparatus for rectifying thermal electrical noise, the preferred apparatus comprising a dielectric ultra-filtration screen membrane having a plurality of cylindrical pores, each pore isolating material forming an individual diode having an internal impedance in which electrical signals are generated by effect of thermal electrical noise, the diodes are connected in parallel to cumulate the effect of rectified electrical signals for concurrent production of power and refrigeration.

An elongated hydrophone array of the type adapted to be towed behind a marine vessel includes a flexible tubular casing in which a chain of acoustic sensors is mounted. A drogue attached to the trailing end of the array serves to maintain the array in a streamer-like horizontal attitude during normal use. An acoustically transparent sheath of open-pore polyurethane foam surrounds the portion of the array in which the sensors are mounted so as to maintain the noise-producing turbulent boundary la...

A corporate feed phased array for radio frequency energy, such array being adapted to frequency angle phase shifter scanning. The electrical length of each transmission line leading to each radiating element is randomly selected to permit the digital phase shifter associated with each radiating element to be randomly actuated to produce a collimated and deflected beam.