World Paper Money Catalog and History of World Currency with over 16.000 images of old and recent world paper money listed by countries.
Simply insert the end of the paper currency into the slot, press the button, and iBill announces the dollar amount in a female voice. A currency identification apparatus for aiding blind persons in identifying currency, comprising:Briefly. 'When the picture of these columns passes thru the light beam, alternate high and low tones are produced by the oscillator. A photocell 50 is mounted to the under side of surface 15, and covers the opening 48 so that any light passing therethrough illuminates the photocell.
The speaker thus produces a sound which varies in frequency in accordance with the pattern of the bill passing through the light path of the identifier device. series network consisting of a capacitor 106 which is charged through a resistor 108, photocell 50 and the adjustable resistance of a potentiometer 110 having a resistance 112 and a movable tap 114 adjustable by means of knob 34. Light source 40 is connected in parallel across a secondary winding 82 of transformer 80. For instance, a $1 bill can be left unfolded. The back side is symmetrical except for trees covering the left side of the picture of the White House, but not the right hand side. 2 and 3 is illustrated in FIG. rectifier network.DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring now to FIG. 16. Immediately below the light box and arranged at approximately the center of the path followed by the currency is a series of small holes in the tray. There are six columns and five dark areas between them. The currency identification apparatus of claim 11, further including a third adjustable resistor means in series with said photoresponsive means and said capacitor means for setting the audible tones produced to a desired frequency range.The light box 20 is offset to the left side of the housing, as viewed in FIG. In the first embodiment described above, the light path is through the bill,In another modification of the invention, both the light source and the photocell can be placed on the same side of the path followed by the bill to be identified, in which case the device responds to the light reflected from the bill, rather than that which passes through it. The holes are aligned across the tray so that light from the source shines through the center of paper currency passed along the tray, through the holes, and onto a photoelectric cell located beneath the tray. The currency identification apparatus of claim 4 further including a second resistor means in series with said photoresponsive means and said capacitor means for limiting the maximum resistance in series with said capacitor means, thereby limiting the lowest pitched audible tone produced.It is another object of the invention to provide an im proved currency'identifying apparatus incorporating a circuit for converting light signals impinging on a photocell into audible signals representing the impinging light pattern.3. As indicated, the present money identifier operates from a conventional source of l 15v. This occurs when the left end of the bill is about 2% inches from the left end of the tray. 1. The currency identification apparatus of claim 1 further including a second resistor means in series with said photoresponsive means and said capacitor means, for limiting the maximum resistance in series with said capacitor means, thereby limiting the lowest pitched audible tone produced by said loudspeaker.SUMMARY OF THE INVENTION It is, therefore, as object of the present invention to provide an apparatus which enables the blind to identify paper currency by converting the dark and light characteristic patterns of the currency into distinctive, identifiable audible signals.and the variations in the pattern printed on both sides of the bill cause corresponding variations in the resistance of the photocell, and thus in the frequency of the sound produced by the relaxation oscillator. Old paper money appraisal, buyers of old money, selling paper money value sell rare currency - Duration: 5:32. In this embodiment, the light box takes a different form to accommodate both the light source and the photocell, and incorporates a support frame 61 connected to the upstanding portion 14 of housing 10 by brackets 62. You find the values of the most important german banknotes here.
340/149 R; 340/149 A Primary ExaminerHarold I. Pitts Attorney, Agent, or Firm-Jones, Tullar & Cooper 5 7] ABSTRACT An improved currency identifier permits recognition of various denominations of paper currency by blind persons. These letters are very faint and do not show up clearly as the bill passes through the instrument. The artwork on a country's currency usually contains historical or cultural references and is a source of national pride.