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A flatbed-type digital scanner has a vertically oriented scanning surface. Because the size of the scanner in a dimension normal to the scanning surface is significantly less than the length or width of the scanning surface, the scanner is taller than it is wide, and consumes less space on a desktop

A flatbed-type digital scanner has a vertically oriented scanning surface. Because the size of the scanner in a dimension normal to the scanning surface is significantly less than the length or width of the scanning surface, the scanner is taller than it is wide, and consumes less space on a desktop than conventional flatbed scanners. Preferably, an outer cover and an intermediate transparent cover are attached to the scanner by a hinge near the bottom. The inner surface of the outer cover has a relatively high coefficient of friction, to prevent slippage of documents. To scan a document, the outer cover is pulled down to a horizontal position, and the document is placed face-up on the outer cover, and the intermediate cover is lowered into position next to the outer cover, so that the scanned document is held in place between the two covers. The two covers are then rotated together to position the document next to the scanning surface for scanning. A latch mechanism holds the covers in place during rotation. The scanner may optionally be wall mounted or mounted in a conventional orientation. This digital scanner reduces consumption of critical desktop area. An additional advantage is that it is easier to align multiple small documents, such as photographs, because these are placed in a face-up position on the horizontally positioned cover.

대표청구항 ▼

A flatbed-type digital scanner has a vertically oriented scanning surface. Because the size of the scanner in a dimension normal to the scanning surface is significantly less than the length or width of the scanning surface, the scanner is taller than it is wide, and consumes less space on a desktop

A flatbed-type digital scanner has a vertically oriented scanning surface. Because the size of the scanner in a dimension normal to the scanning surface is significantly less than the length or width of the scanning surface, the scanner is taller than it is wide, and consumes less space on a desktop than conventional flatbed scanners. Preferably, an outer cover and an intermediate transparent cover are attached to the scanner by a hinge near the bottom. The inner surface of the outer cover has a relatively high coefficient of friction, to prevent slippage of documents. To scan a document, the outer cover is pulled down to a horizontal position, and the document is placed face-up on the outer cover, and the intermediate cover is lowered into position next to the outer cover, so that the scanned document is held in place between the two covers. The two covers are then rotated together to position the document next to the scanning surface for scanning. A latch mechanism holds the covers in place during rotation. The scanner may optionally be wall mounted or mounted in a conventional orientation. This digital scanner reduces consumption of critical desktop area. An additional advantage is that it is easier to align multiple small documents, such as photographs, because these are placed in a face-up position on the horizontally positioned cover. age dividers; ii) applying a gradient voltage to the voltage divider of the first, top, antenna and zero voltage to the second, bottom, antenna; iii) applying a constant voltage to the voltage divider of the first, top, antenna and zero voltage to the second, bottom, antenna; iv) applying a gradient voltage to the voltage divider of the second, bottom, antenna and zero voltage to the first, top, antenna; and v) applying a constant voltage to the voltage divider of the second, bottom, antenna and zero voltage to the first, top, antenna; k) receiving a signal measurement from the receiving antenna during each drive state; l) detecting a magnitude of the measured signal data from the receiving antenna and sending to the signal receiver; m) synchronizing the received signal data with timing data obtained from the drive signal transmitter; and n) calculating the position of the receiving antenna from the measured signal data. 2. The method of claim 1 wherein the position of the receiving antenna is calculated according the following steps: a) subtracting the signal magnitude data measured at state (i) from the signal magnitude measured at each of the four other states, to yield: PTop-G=the signal magnitude measure at state (ii) less the signal magnitude data measured at state (i); PTop-C=the signal magnitude measure at state (iii) less the signal magnitude data measured at state (i); PBottom-G=the signal magnitude measure at state (iv) less the signal magnitude data measured at state (i); PBottom-C=the signal magnitude measure at state (v) less the signal magnitude data measured at state (i); b) obtaining a single data point relating to the measurements taken from the top antenna, PTop,by calculating the ratio of PTop-G/PTop-C; c) obtaining a single data point relating to the measurements taken from the bottom antenna, PBottom,by calculating the ratio of PBottom-G/PBottom-C; and d) determining the positional meaning of PTopand PBottombased on a model of a field radiated by the transmitting antennas. 3. The method of claim 3 wherein the position of the receiving antenna is calculated by the additional step of compensating for variance in resistance in each voltage divider after PTopand PBottomare calculated. 4. The method of claim 3 further comprising the step of compensating for nonlinear variation along any voltage divider by providing an algorithm in the processor, the algorithm containing correction parameters for a one-dimensional voltage divider. 5. A method for locating a user selected position over an antenna apparatus wherein one antenna has a loop voltage divider, comprising the steps of: a) providing a first transmitting antenna, the first antenna comprising a first voltage divider having at least two electrical contacts coupled to it, the first, and a plurality of spaced apart, electrically conductive, finger elements coupled to the first voltage divider between the at least two electrical contacts; b) providing an electrical insulator to insulate the components of the first transmitting antenna from a second transmitting antenna; c) providing the second transmitting antenna, the second antenna comprising a second voltage divider shaped in a loop and having at least three electrical contacts at intervals along the loop, and a plurality of spaced apart, low resistance, finger elements coupled to the second voltage divider at intervals between each two of the at least three contacts, such that the electrical potential along a each element is substantially uniform and the elements are oriented at a substantially a constant angle with a tangent of the loop where each element couples to the loop; d) orienting the finger elements of the first antenna to define the area enclosed by the loop of the second voltage divider, and orienting the fingers