Abstract:
A image display and audio device includes a display image and a sensor coupled to the display image for producing an output signal which varies according to the acceleration or orientation of the display image; and an audio producing structure which responds to the output signal generated by the sensor which corresponds to visual information produced on the display image.
Abstract:
An ink jet printing apparatus adapted to producing images using inks having predetermined concentrations of a magnetic label material therein, includes a printhead; an ink delivery system adapted to provide inks to the printhead; and a magnetic sensor associated with the ink delivery system, said sensor being sensitive to the magnetic label material in the ink and adapted to produce a signal which is characteristic of the concentration of the label material in the ink; wherein said magnetic sensor includes a horseshoe permanent magnet having first and second pole faces and a pair of magnetic field sensors located symmetrically between said pole faces having their axes of magnetic field sensitivity aligned perpendicular to the fixed field of said permanent magnet such that no signal is produced from said fixed field.
Abstract:
An electronic printing apparatus is disclosed for forming images on a receiver which stores a digital image. The apparatus uses a receiver that includes field-driven particles in a matrix that change optical density in response to an applied electric field, a substrate, and a conductive portion disposed between the matrix and the substrate. The apparatus further includes an array of electrodes cooperating with the conductive portion for selectively applying electric fields across the matrix at the image forming position so that the field-driven particles change optical density, and electronic control circuitry electrically coupled to the array and the conductive portion for selectively applying voltages to the array so that fields are applied at the image forming position to field-driven particles at particular locations on the receiver corresponding to pixels in the stored image whereby the electrodes produce an image in the receiver corresponding to the stored image.
Abstract:
Thermal resistive printing apparatus for printing a fluorescent postal stamp image on a receiver in response to a digital image includes a donor web carrying at least one visible colorant material under visible light and an invisible fluorescent material which when illuminated by light in a predetermined portion of a spectrum, emits light in a different portion of the spectrum and a receiver for receiving colorant material and fluorescent material from the donor web and the receiver having a plurality of receiver portions in which the stamp images are to be formed. The apparatus further includes a thermal resistive head including a plurality of thermal resistive elements responsive to the digital image for selectively applying heat to the donor web so that colorant material and fluorescent material are transferred from the donor web to the plurality of portions on the receiver to form fluorescent postal images.
Abstract:
A method for microfluidic printing of black images on a receiver, including providing a reservoir containing a reagent capable of reducing a silver salt to silver metal; providing a reservoir containing a silver salt; reacting the reducing agent with the silver salt to provide black pixels; and transferring the black pixels to a receiver.
Abstract:
Apparatus is provided for digital printing images in annular-radial coordinates onto discs having an axis of rotation, the printing to occur between an inner radius R.sub.1 of the disc and an outer radius R.sub.2 of the disk. The Apparatus includes a linear printhead array extending radially of the disc at least between inner radius R.sub.1 and outer radius R.sub.2 ; and a drive adapted to rotate the disc about the axis while the printhead is imagewise addressed to create an imaged area that is symmetric to the center of the disc. The drive is adapted to rotate the disc at an annular velocity such that the spatial resolution of the printed image along the outer edge of the image is the same as that of an original image being printed. The image area may be continuous about substantially the entire annular surface of the disc or divided into discrete sections to be printed in associated tiles located on the disc such that:(x.sub.i, y.sub.i)=>(r.sub.i, .theta..sub.i),where (x.sub.i, y.sub.i) are local coordinates of the center of the associated tile, and .theta..sub.i is determined by a radial line through the center of the associated tile. Generally, the lower corners of the tiles would not overlap each other. Each pixel having a position (x, y) within each tile is translated to a polar coordinate (r, .theta.) on the disc by the following two equations:x-x.sub.i =r sin(.theta.-.theta..sub.i)y-y.sub.i =r cos(.theta.-.theta..sub.i)-r.sub.i.r.sub.2 /r.sub.1 =R.sub.2 /R.sub.1.
Abstract:
A microfluidic printing system for delivering ink to a receive including at least one ink reservoir, a structure defining a plurality of chambers arranged so that the chambers from an array with each chamber being arranged to form an ink pixel for delivery to the receiver, and a plurality of microchannels connecting the reservoir to the chambers. The printing system further includes a plurality of microfluidic pumps each being associated with a single microchannel for supplying ink from an ink reservoir through a microchannel for delivery to a particular chamber. The system is responsive to the flow of the ink through the chambers to determine the amount of ink being delivered to a receiver through the chambers, and further controls the microfluidic pumps to prevent the further flow of ink to the receiver.
Abstract:
Disclosed is a copy protection method for identifying copied images that have been captured or generated in electronic form. The method generates information in electronic form for causing the printing of copy restrictive information as a plurality of contiguous pixels, of substantially yellow color onto the hard copy. The visibility of the yellow pixels is very low until a cyan illumination is applied to the protected image then the copy restrictive information becomes highly visible.
Abstract:
A method of printing human readable information on a CD having a substrate, a record layer over the substrate, and a reflective layer over the record layer includes the steps of providing a colorant donor element in transferable relationship with a surface of the CD over the reflective layer; raster scanning a light beam across the colorant donor element to cause the transfer of human readable colorant pixels onto such surface; and continuously raster scanning the light beam without any non-printing or free fly time during the transfer of such human readable colorant pixels.
Abstract:
The invention relates to an emulsion comprising silver halide grains, said grains being tabular and comprising sensitizing dye(s) and silver salt epitaxial deposits, and addenda that include a mercaptotetrazole and a tetraazaindene.