Abstract: A label for replicating images which includes an image-receiving sheet having microencapsulated solvent embedded therein. The image-receiving sheet is removably bonded to a base film which permits the label to be easily handled. Applying pressure to the label when it is in contact with a solvent-sensitive image (such as a xerographically produced page) causes the microcapsules to break and a small part of the image to dissolve and deposit on the image-receiving sheet. The image-receiving sheet (after receiving the dissolved portion of the image) is attached to a destination surface (preferably by a self-adhesive) and the base film peeled off.

Abstract: A variable focal length lens, for use in spectacles, which includes one or two rigid lenses to provide the wearer's distance correction, and a liquid filled lens bounded by a distensible stretched elastomeric membrane to provide a variable near addition. The liquid, which has a fixed volume, is stored in the field of view between the elastomeric membrane and one of the rigid lenses. Variation of the optical power of the liquid filled lens in one embodiment is achieved by displacement of the outer periphery of the stretched elastomeric membrane. In a second embodiment, both the optical power and the prismatic power of the liquid lens is varied by changing the angle between the membrane support and the rigid lens.

Abstract: A computer printer font cartridge expansion module having i) a connector to couple to a printer font data bus receptacle, ii) a receptacle for accepting a font cartridge, and iii) ROM for storing character information to provide additional font capability when the assembly formed by a font cartridge and an expansion module is plugged into a computer printer. The printer font data bus is extended through the expansion module to the attached font cartridge. The addresses of the ROM in the expansion module are in a block of addresses at the top of the range of addresses addressable by the font data bus. Alternatively, switching means are provided for switching the printer font data bus between the expansion module and an attached font cartridge. Also provided are securing means for attaching a font cartridge to the expansion module.

Abstract: A printing control system for a facsimile receiver of the type having a printhead which scans across the page and prints multiple lines of the facsimile image simultaneously. The system includes a first in-first out memory for storing incoming facsimile data which arrives more rapidly than the printing system can accommodate. The stored incoming data is transferred to one or more scan buffers as needed, and then sequentially to the printhead drivers.

Abstract: A label for transferring copies of solvent sensitive images, such as those comprised of fused toner, from one surface to another. An original image is copied on to the label by wetting the image to be copied and the label with solvent (after placing the label and the image in contact). Solvation of the image causes a likeness of the image to migrate to the label. The solvent is preferably applied by breaking solvent-filled microcapsules which are in contact with the label and/or the item which bears the original image. After solvation of the image, the label, bearing a copy of the image, can be removed from the original image bearing surface and attached to a receiving surface. The invention has particular application to the addressing of envelopes for letters printed by laser printers. In this application, a copy of the address of an intended recipient of a letter can be transferred from the letter to an envelope without destroying the original address on the letter.

Abstract: A method and system for reproducing facimile images or other images in a dot matrix format wherein the normal printhead line resolution is not the same as the image line resolution. Two embodiments are disclosed. In the preferred embodiment, a commercially available printhead having two columns of dot forming elements is used. The printhead is slanted so as to change the effective spacing of the dot forming elements, and the dots making up the image are formed by the two columns alternately so as to increase the speed of operation. In the second embodiment disclosed, each of the scan lines of the image is comprised of dots formed by three dot forming elements. Each picture element is printed by two of the three dot forming elements and no two adjacent picture elements are printed by the same group of two.

Abstract: A label which can be applied to envelopes or the like as an address label. The label, which is transparent, has an area treated so that it will detach a fused toner image from a carrier sheet printed xerographically or by a laser printer and cause the image to adhere to the label. Adhesive or chemical means are used to cause the image to transfer. In use, the label is first applied to a carrier sheet, on which is printed, the desired image, such as an address. When the label is removed from the carrier sheet, the fused toner image remains adhered to the label's underside, and the label can then be applied to an envelope. The label, being transparent, displays the image.

Abstract: A text preparation system involving a packaging of the elements of a word processor in a typewriter-like configuration. The system includes a detachable keyboard positioned as in a conventional typewriter with the printer set on an angle so that the user can observe the positioning of the paper as is necessary when filling in preprinted forms. An electronic memory and video display unit are provided which allow text storage and editing prior to printing. The video display is supported by an articulated arm and the position and attitude of the video display can be locked using a single clamp.

Abstract: A hold circuit for use with Dual Tone Multi Frequency telephone systems including a bistable circuit connected across the telephone line, the ON state drawing sufficient current from the telephone line to hold the circuit and the OFF state being substantially infinite impedance, a tone detection circuit which triggers the bistable circuit ON when the two frequencies produced by the "*" button are sensed, and a means for triggering the bistable circuit OFF responsive to the drop in line voltage due to a telephone on the line being taken off-hook.

Abstract: A phonograph cartridge interface which enables any magnetic phonograph cartridge to be operated into its proper termination impedance. One embodiment of the device includes a capacitance test section which is used to determine the unknown capacitance of a tonearm cable. A termination network is then adjusted to provide a proper amount of capacitance in view of the determined capacitance and the value of total termination capacitance specified by the cartridge manufacturer. The network also is adjustable to provide the proper termination resistance in parallel with the capacitance.In a second embodiment capacitance matching circuitry is included which enables the total termination capacitance provided by the tonearm cable and termination network to be adjusted to a desired value. In this embodiment, actual measurement of the tonearm cable capacitance is not required.

Abstract: A phonograph tone arm and cartridge damping system in which a damper is coupled to a tone arm having a cartridge at one end thereof or to the cartridge itself and is adapted to ride on the surface of a record to minimize the effect of surface warps on the tone arm and cartridge. The damper includes a housing, a low friction piston slidable within the housing, and a glider adapted to ride on the surface of the record. The piston has an orifice therethrough to permit ambient air forced through the orifice to serve as the damping medium, or the piston and the housing have a preselected spacing between them to allow ambient air to flow therethrough. The glider has attached thereto a piece of soft velure or pile fabric, or a plurality of brush tips, which act to minimize friction between the glider surface and the record.