Abstract: A conveyance system 50 includes a main body unit 31, a TOF sensor 20, and a attachment orientation sensing device 10. The TOF sensor 20 has an emission unit 21 that emits light toward a floor surface FL, an imaging element 23 that detects the light emitted from the emission unit 21, a distance information acquisition unit 11 that acquires the information about the distance to reference points P1 and P2 on the floor surface FL according to the phase difference between received light wave and an emitted light wave detected by the imaging element 23, and an angle information acquisition unit 12 that acquires information about the angle up to the reference points P1 and P2, wherein the conveyance system is attached to the main body unit 31.

Abstract: A TOF sensor 20 comprises an emission unit 21, an imaging element 23, a distance information acquisition unit 11, an angle information acquisition unit 12, and an attachment orientation sensing unit 14. The emission unit 21 irradiates the floor surface FL with light. The imaging element 23 senses the light emitted from the emission unit 21. The distance information acquisition unit 11 acquires information about the distance to reference points P1 and P2 on the floor surface FL according to the phase difference between the received light wave and the emitted light wave sensed by the imaging element 23. The angle information acquisition unit 12 acquires information about the angle to the reference points P1 and P2. The attachment orientation sensing unit 14 senses the attachment orientation with respect to the floor surface FL on the basis of the distance information and the angle information acquired by the distance information acquisition unit 11 and the angle information acquisition unit 12.

Abstract: An attachment orientation sensing device 10 comprises a distance information acquisition unit 11, an angle information acquisition unit 12, and an attachment orientation sensing unit 14. The distance information acquisition unit 11 acquires information about the distance to reference points P1 and P2 on a floor surface FL according to the phase difference between the received light wave and the emitted light wave of the light emitted from the emission unit 21 included in a TOF sensor 20 with respect toward the floor surface FL. The angle information acquisition unit 12 acquires information about the angle to the reference points P1 and P2. The attachment orientation sensing unit 14 senses the attachment orientation of the TOF sensor 20 with respect to the floor surface FL on the basis of the distance information and the angle information acquired by the distance information acquisition unit 11 and the angle information acquisition unit 12.

Abstract: A control unit (10) is an output control device that controls output of information included in a distance image including information about the distance to a target (30), and comprises a distance calculation unit (11) and an output information selection unit (19). The distance calculation unit (11) acquires information about the distance from a lighting device (21) to the target (30) according to the amount of reflection of light (L1) emitted toward the target (30). The output information selection unit (19) selects, as the output target, distance information corresponding to the pixels of the distance image including the detected target (30) on the basis of the distance information acquired by the distance calculation unit (11).

Abstract: A control unit (10) is a device for detecting the condition of a floor surface (FL) on which a target (30) has been placed, and comprises a distance calculation unit (11) and a target detection unit (18). The distance calculation unit (11) calculates information about the distance to the target (30) according to the amount of reflection of the light emitted from a lighting device (21) toward the target (30). The target detection unit (18) detects the condition of a floor surface (FL) on which the target (30) has been placed, on the basis of the information about the distance acquired by the distance calculation unit (11).

Abstract: There is provided an imager light receiving element type of range image sensor that acquires, from a plurality of pixels, information about light received by the various pixels, the range image sensor comprising a distance information calculation unit and a memory unit. The distance information calculation unit calculates the distance to an object for each of pixels of an imaging element. The memory unit stores the distance measured for each of the pixels and an angle information acquired for each of the pixels in association with the distance.

Abstract: A light projecting device may include an LED, an LED power supply, and a drive circuit. The LED emits light in a specific direction. The LED power supply supplies power to the LED. The drive circuit subjects the waveform of the drive current modulated at a specific frequency to DC offset and inputs the result to the LED.

Abstract: An area information estimating device has a camera that photographs an image within a sensing area, a person detector that detects a person from the image from the camera, and a position calculator that calculates an existence position of the person in the sensing area based on a coordinate on the image in which the person is detected by the person detector. The person detector excludes the person in whom a relationship between the coordinate and a size on the image does not satisfy a predetermined condition from a detection target.

Abstract: An area information estimating device has a camera that photographs an image within a sensing area, a person detector that detects a person from the image from the camera, and a position calculator that calculates an existence position of the person in the sensing area based on a coordinate on the image in which the person is detected by the person detector. The person detector excludes the person in whom a relationship between the coordinate and a size on the image does not satisfy a predetermined condition from a detection target.

Abstract: A wide-angle imaging device configured to photograph a first range, having an imaging element that photographs an image at a second range, wherein the first range has an angle of view wider than the second range, a visual field switching optical system comprising at least one optical element, and an optical system driving mechanism that moves the optical element of the visual field switching optical system. The optical element has a refractive type prism that refracts light incident from a visual field in a direction inclined with respect to an optical axis direction to collect the light to the imaging element.

Abstract: An embodiment of the invention provides a display filter, in which plural design patterns are independently illuminated and displayed and aesthetics is not lost during turn-off of a source light beam, and a display module provided with the display filter. The display filter includes plural design pattern filters and a blindfold filter. The blindfold filter is disposed on a visibility side opposite a light source, and the blindfold filter transmits source light beams having specific wavelength ranges which are transmitted through the design patterns respectively, and the blindfold filter absorbs light beams having wavelength ranges out of the specific wavelength ranges. Therefore, the blindfold filter is provided, whereby the design pattern can be illuminated and displayed when the light source is lit on, and the design patterns hardly visible to prevent deterioration of the aesthetics compared with a conventional technique when only an outer peripheral light beam exists while the light source is turned off.

Abstract: A paper multi-feed detection apparatus and a paper multi-feed detection method are provided for preventing the detection capability from being deteriorated by a noise factor and improving the detection precision even where an area around the feeding path has no extra space in terms of the shape and there are many noise-generating factors because of a demand for a smaller size of the device. An ultrasonic transmission opening formed in one of two feeding guide plates is large so as to discharge outside a reflected wave which returns through the ultrasonic transmission opening, and an ultrasonic receiving opening formed in the other feeding guide plate is smaller than a receiving face area of a receiver for receiving the ultrasonic wave.

Abstract: An ultrasonic wave receiver receives an ultrasonic wave outputted by an ultrasonic wave oscillator, and outputs a receiving signal. A level determining unit makes a determination as to the presence or absence of a sheet of paper based upon a level of the receiving signal. A CPU is informed of this determining signal through a processing unit. An oscillation peak detector detects a peak value of a transmission signal used for controlling an ultrasonic wave transmitter, which is transmitted from an oscillation amplifier. A receiving peak detector detects a peak value of the receiving signal received by the ultrasonic transmitter. The phase difference of the two signals is detected based upon the difference in count values of a loop counter between the timing in which the peak value of the transmission signal is detected and the timing in which the peak value of the receiving signal is detected.

Abstract: An unintentionally overlapped condition in a paper sheet being transported is detected by making ultrasonic waves incident on its path and detecting a phase difference between the received ultrasonic waves and a predetermined standard phase. For detecting an overlap on the basis of this phase difference, a specified data item on the detected overlap such as a cumulative number of times an overlap has been detected is generated and one of a plurality of preliminarily defined levels corresponding to this specified data item is selected. The selected level is outputted. If the overlap is detected over an entire detection range of the paper sheet from its front edge to the back edge, however, it is concluded that there is no possibility of an unintentional overlap.

Abstract: The present invention relates to a dot code and a reader which is adapted to prevent the codes on the upper and lower lines from overlapping with each other and to be positively read out. A two-dimensional code is realized which can be read out positively. A printing section, when printing a two-dimensional code, prints dots on every other line. Dots are printed on every column. However, on the adjacent columns, dots are printed in a manner deviated in phase. With this, in the case of detecting a dot concentration in each direction of line and determining a presence or absence of a code, the waveform representing a color tone deviates in phase line by line, thus making possible to positively recognize a change in the lines.

Abstract: The present invention relates to a code printing method and a code format, capable of accurate recognition of codes. Printing by nozzles excluding nozzles at one end out of nozzles of a printer head prevents codes printed by the scanning of the printer head from overlapping at each scanning as shown by a portion surrounded by an oval part in the drawing to permit accurate printing of codes. In addition, by printing a synchronizing code column, positions of printed dots can be accurately detected to thereby permit accurate recognition of printed codes.

Abstract: An unintentionally overlapped condition in a paper sheet being transported is detected by making ultrasonic waves incident on its path and detecting a phase difference between the received ultrasonic waves and a predetermined standard phase. For detecting an overlap on the basis of this phase difference, a specified data item on the detected overlap such as a cumulative number of times an overlap has been detected is generated and one of a plurality of preliminarily defined levels corresponding to this specified data item is selected. The selected level is outputted. If the overlap is detected over an entire detection range of the paper sheet from its front edge to the back edge, however, it is concluded that there is no possibility of an unintentional overlap.

Abstract: Timing marks are printed at the left and right of a data mark of a two-dimensional dot code. Whether or not the data mark exists is determined based on the position on the line connecting the centers of the timing marks at both ends at the left and right of the data mark.

Abstract: An ultrasonic wave receiver receives an ultrasonic wave outputted by an ultrasonic wave oscillator, and outputs a receiving signal. A level determining unit makes a determination as to the presence or absence of a sheet of paper based upon a level of the receiving signal. A CPU is informed of this determining signal through a processing unit. An oscillation peak detector detects a peak value of a transmission signal used for controlling an ultrasonic wave transmitter, which is transmitted from an oscillation amplifier. A receiving peak detector detects a peak value of the receiving signal received by the ultrasonic transmitter. The phase difference of the two signals is detected based upon the difference in count values of a loop counter between the timing in which the peak value of the transmission signal is detected and the timing in which the peak value of the receiving signal is detected.