Class / Patent application number | Description | Number of patent applications / Date published |
358445000 | Signal sampling and conversion | 6 |
20090073502 | Print data generation apparatus - A print data generation apparatus includes a pattern data registration unit, a pattern data conversion unit and an image conversion unit. The pattern data registration unit registers pattern data corresponding to a print image readable by an electronic pen printed on a recording medium. The pattern data conversion unit converts the print image into the pattern data registered in the pattern data registration unit. The image conversion unit converts the pattern data converted by the pattern data conversion unit into drawing data of the print image. | 03-19-2009 |
20110063689 | IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS - An image reading apparatus includes: a frequency modulation unit that generates a clock whose frequency is modulated by an arbitrary modulation cycle; a modulation cycle setting unit that sets the modulation cycle; a driving unit that drives the photoelectric conversion element by the clock; a signal generating unit that generates an analog signal corresponding to a frequency change of the clock; an amplification inversion unit capable of amplifying an alternating current component of the analog signal with an amplification factor corresponding to a setting value set externally, and capable of switching between inversion and non-inversion; a signal superimposing unit that superimposes the analog image signal on an analog signal output from the amplification inversion unit; and a controlling unit that calculates a feature amount, and that controls the amplification factor and the inversion or the non-inversion of the amplification inversion unit based on a calculation result. | 03-17-2011 |
20110242614 | IMAGE READER - An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit. | 10-06-2011 |
20120218610 | IMAGE READING DEVICE - An image reading device includes first and second reading units, first and second converting units, and a setting unit. The first and second reading units include N-number of first sub-regions and M-number of second sub-regions, respectively. Each converting unit includes L-number of channels. Each channel converts analog signal into digital signal. When the setting unit sets the double-sided read mode, P-number of first sub-regions are connected to the first converting unit and M-number of second sub-regions are connected to the second converting unit. When the read mode setting unit sets the single-sided read mode, P-number of first sub-regions are connected to the first converting unit and the remaining first sub-regions are connected to the second converting unit. L is greater than or equal to M and smaller than or equal to N. N is smaller than or equal to 2×L. | 08-30-2012 |
20140204427 | PHOTOELECTRIC CONVERSION ELEMENT, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS - A photoelectric conversion element includes: a plurality of AD conversion units that convert respective analog signals representing amounts of charge stored in a plurality of light receiving elements into digital signals in parallel; and a parallel-serial conversion unit that performs parallel-serial conversion on the digital signals into which the analog signals have been converted in parallel by the AD conversion units. | 07-24-2014 |
20140240791 | IMAGE READER - An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit. | 08-28-2014 |