Abstract: A memory expansion apparatus is disclosed which provides for expansion of memory capacity by use of logic associated with memory modules. The logic provides for selection of one of a plurality of pages, each having substantially the same address therefor. The device provides for the selection by utilization of a special instruction, and includes decoding means for specialized bits in the instruction. Means are provided wherein repeated access to the same page in a block occurs free of a requirement of repeated address decoding amongst the plurality of pages in the block.

Abstract: A device capable of converting radiant energy to electrical energy and storing said electrical energy for future use is described. The device comprises a pair of electrodes, at least one of which is transparent, a compensator layer in contact with one of said electrodes, and a layer of a charge storage material in contact with the other of said electrodes and said compensator layer.

Abstract: A record player has a record track selection system using sensing means to scan a record to identify selected record tracks, the sensing means feeding signal processing circuitry having a gain or threshold adapted to individual record characteristics as determined by a record scan prior to track identification.

Abstract: A photogalvanic cell having a light transparent electrode and a spaced counterelectrode separated by an electrolyte. The electrolyte includes an n-methylphenazine dye system which not only contributes to the conversion of light to electrical energy but also is capable of storing electrical charge after light is removed.

Abstract: The present invention includes a multi-electrode structure including a counterelectrode, a display electrode in registry with the counterelectrode and finally an intermediately positioned apertured background electrode. Display material is contained between the counterelectrode and the background electrode. Depending upon the electric field conditions existing between the various electrodes, a display image may be created with a first dark-light contrast relationship relative to a background. An appropriate driving circuit is capable of changing the field relationship between the electrodes so that a reverse contrast relationship appears between a displayed image and its background.

Abstract: An electrochromic device having an electrochromic layer and an electrolyte sandwiched between electrodes. A charge compensator ion permeable layer is interposed between the electrochromic layer and the electrolyte. The latter-mentioned interposing layer serves as a protective overcoat for the electrochromic layer and minimizes the structural decay of the cell which might otherwise occur. SUFIELD OF THE INVENTIONThe present invention relates to electrochromic devices and, more particularly, to such a device having a protective overcoat layer interposed between an electrochromic layer and an electrolyte.BRIEF DESCRIPTION OF THE PRIOR ARTThe prior art has recognized the usefulness of electrochromic devices wherein the electromagnetic absorption characteristics may be reversibly altered by a controlled electric field. The device is particularly useful as a display device or in light valve-type applications.U.S. Pat. No.

Abstract: A photogalvanic cell includes a glass substrate with a transparent electrode which receives irradiating light energy. A second electrode is positioned in spaced relationship from the first electrode and has a thin film of charge storing tungsten oxide deposited thereon. Spaced from both the transparent electrode and the tungsten oxide thin film is a counterelectrode. An electrolyte having TiO.sub.2 powder mixed therein forms a photoactive site at the surface of the transparent electrode. By physically separating the tungsten oxide thin film from the transparent electrode, more light irradiates the TiO.sub.2 thereby increasing the photoconversion of the cell.

Abstract: A sealed device includes an electrode having a semiconductor thin film coating. A liquid electrolyte contacts the thin film to form a photoactive interface which converts light energy to electrical energy. A counterelectrode is positioned in spaced relation to the electrode and also contacts the electrolyte. Leads are connected to the electrode and counterelectrode so that a load may be driven by the device when the device is exposed to light.

Abstract: A photogalvanic cell includes a conducting SnO.sub.2 electrode upon which is deposited a semi-transparent film of Ti. A metal oxide thin film, such as TiO.sub.2 is in turn deposited upon the semi-transparent Ti thin film. An aqueous (acid or base) electrolyte contacts the metal oxide thin film to form a photoactive site for converting light to electrical energy. The semi-transparent film reduces the internal resistance of the cell by assisting charge transfer between the metal oxide film and the electrode. Also, use of a semi-transparent film permits bi-directional irradiation of the cell to increase photoconversion efficiency.

Abstract: Gramophone equipment incorporating photoelectric scanning to detect bands between record tracks; an electronic counter to count the detected bands; a selector for making track selections; an electronic memory for storing selections; control circuitry for comparing the contents of the counter and memory to control a tone arm of the equipment to play selected tracks and lift from a record at the end of a selection; and a tone arm drive comprising means for lifting and lowering the arm and means for driving the arm laterally under control of the control circuitry.

Abstract: A photogalvanic cell having an electrode and a counterelectrode positioned in spaced registry. A charge storage layer containing a transition metal oxide covers the electrode while a semi-solid electrolyte covers the counterelectrode. An overcoat layer containing tin oxide is disposed in intervening contact between the charge storage layer and the semi-solid electrolyte. The cell converts light energy to electrical energy and also stores electrical charge for use after the cell is no longer exposed to light.

Abstract: A system for administering a metered dose of nebulized antigen tests a patient's pulmonary response. The system includes a thermistor detector for sensing initiation of patient inhalation. A variable electronic timer meters the amount of nebulized antigen introduced to the patient. Safety switching means is provided for insuring against erroneous administration of more than a single dose at a time. Separate measuring equipment is used to measure pulmonary airflow resistance which will increase in response to bronchial spasm.

Abstract: A bulk material conveying mechanism including a series of tubular elements each having a screw convolution attached to the exterior of the element body. Universal joints connect confronting ends of adjacent tubular elements to allow the elements to conform with the curvature of an enclosing chute.

Abstract: A photogalvanic cell includes an electrode and counterelectrode supported on a substrate with a semi-solid electrolyte layer intervening therebetween. Titanium oxide is suspended in the electrolyte. A voltage appears between the electrode and counterelectrode in response to light. Charge storage is exhibited by the cell after light is removed.

Abstract: A package for releasable containment of flat articles having apertures therethrough includes a card having plural tear-away portions each in facing relation to a contained article and an overlay in facing relation to the card and articles with an adhesive securing the overlay to the card at first locations exteriorly of the articles and at second locations in registry with apertures in the articles.

Abstract: A stepping motor includes a rotor formed of ferromagnetic material having a plurality of circumferentially alternately arranged poles of opposite polarities and a stator having main poles which are polarized in opposite polarities by successive drive pulses of opposite senses. An auxiliary stator pole is provided between adjacent main stator poles to give rise to a thrust that causes the rotor to rotate a small angle in the direction of rotation during the interval between successive drive pulses so that upon polarization of the stator by a subsequent drive pulse the rotor is easily caused to rotate in the same direction of rotation.

Abstract: A number of aligned and spaced photogalvanic cells/compartments have interior passages formed therebetween to permit the free passage of electrolyte. Each compartment includes spaced electrodes and a TiO.sub.2 -electrolyte photoactive site. A layer of charge storing material, such as tungsten oxide may be incorporated in each compartment. As a result, each compartment is capable of converting light energy to electrical energy and also storing charge within the cell after light irradiation ceases. By connecting the various electrodes of the compartments in parallel, greater current flow may be appreciated.

Abstract: A programmable read-only memory (PROM) provides a fixed stored microroutine to logic circuitry which controls the fetching of data from a memory to a variable number of video display units. The microroutine includes a small number of micro subroutines that are utilized to fetch the addresses in a separate main memory, where character data is to be found. Similarly, subroutines are provided for obtaining entry marker (cursor) addresses from the main memory. Additional subroutines are provided for indirectly addressing the main memory for the character data which undergoes encoding by a character generator that is capable of providing video information to eight channels.

Abstract: A device capable of converting radiant energy to electrical energy and storing said electrical energy for future use is described. The device comprises a pair of electrodes, at least one of which is transparent, a compensator layer in contact with one of said electrodes, and a layer of a charge storage material in contact with the other of said electrodes and said compensator layer.

Abstract: A charge storing photogalvanic cell including spaced electrode and counterelectrode "sandwiching" a charge storage layer and a compensating layer. Various dopants to the charge storage layer have been determined to vary cell performance as follows: increasing photosensitivity and charge retention; increasing electrical response; increasing device life; decreasing charge retention; changing optical absorption of charge storage layer; or localizing destruction of charge storage capability.