Abstract: The image reading device includes a reading section configured to read an image from a document, a control section configured to perform control related to the reading of the image from the document, a display section configured to display information, and a USB coupling section configured to couple with a USB cable. The control section control to switch to any one of a plurality of mode types. When a power source is turned on, a control section determines one of a plurality of mode types based on USB negotiation, and then makes a liquid crystal display section display information that enables identifying the decided-on mode.

Abstract: A drive circuit including a push-pull circuit is a circuit in which a converted signal whose voltage level is inverted compared with a reference signal is input to the gate terminal of a first N-type MOSFET, and the reference signal is input to the gate terminal of a second N-type MOSFET. A second adjustment circuit advances the falling timing of the converted signal input to the gate terminal of the first N-type MOSFET.

Abstract: An FFC coupling a sensor substrate and an AFE substrate includes a configuration in which a ground line is sandwiched between a first lead wire and a second lead wire that are signal lines that transmit a read signal from the sensor substrate to the AFE substrate, and includes a configuration in which a third lead wire having a smaller voltage change than the signal line is sandwiched between two signal lines that are at least one set other than a set of the first lead wire and the second lead wire, wherein each of the signal lines is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate, and the third lead wire is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate.

Abstract: A drive circuit including a push-pull circuit is a circuit in which a converted signal whose voltage level is inverted compared with a reference signal is input to the gate terminal of a first N-type MOSFET, and the reference signal is input to the gate terminal of a second N-type MOSFET. A second adjustment circuit advances the falling timing of the converted signal input to the gate terminal of the first N-type MOSFET.

Abstract: A transport apparatus includes a speaker and a mike disposed at respective positions between which a transport path of a medium is interposed, where the speaker and the mike face each other, a drive circuit that outputs a drive signal to the speaker, an amplifier circuit formed by coupling a plurality of amplifiers in series, where the amplifier circuit amplifies and outputs an output signal of the mike, a processor to which the output signal of the amplifier circuit is input, an attenuation circuit disposed in a stage preceding a predetermined amplifier, where the attenuation circuit attenuates an input signal and outputs the input signal to the predetermined amplifier, and a switch that switches an attenuation factor by the attenuation circuit.

Abstract: A medium transport device includes a transport section transporting a medium in a contact manner, an electrode detecting static electricity charged on the medium, and a static electricity detection circuit. The static electricity detection circuit includes a voltage clamp circuit clamping a detection signal input from the electrode to a predetermined voltage, an amplifier circuit amplifying an output signal of the voltage clamp circuit, a rectifier circuit rectifying an output signal of the amplifier circuit, and a comparator circuit serving as a determination circuit determining whether the medium exists based on an output signal of the rectifier circuit.

Abstract: An FFC coupling a sensor substrate and an AFE substrate includes a configuration in which a ground line is sandwiched between a first lead wire and a second lead wire that are signal lines that transmit a read signal from the sensor substrate to the AFE substrate, and includes a configuration in which a third lead wire having a smaller voltage change than the signal line is sandwiched between two signal lines that are at least one set other than a set of the first lead wire and the second lead wire, wherein each of the signal lines is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate, and the third lead wire is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate.

Abstract: A medium transport device includes a transport section transporting a medium in a contact manner, an electrode detecting static electricity charged on the medium, and a static electricity detection circuit. The static electricity detection circuit includes a voltage clamp circuit clamping a detection signal input from the electrode to a predetermined voltage, an amplifier circuit amplifying an output signal of the voltage clamp circuit, a rectifier circuit rectifying an output signal of the amplifier circuit, and a comparator circuit serving as a determination circuit determining whether the medium exists based on an output signal of the rectifier circuit.

Abstract: A transport apparatus includes a speaker and a mike disposed at respective positions between which a transport path of a medium is interposed, where the speaker and the mike face each other, a drive circuit that outputs a drive signal to the speaker, an amplifier circuit formed by coupling a plurality of amplifiers in series, where the amplifier circuit amplifies and outputs an output signal of the mike, a processor to which the output signal of the amplifier circuit is input, an attenuation circuit disposed in a stage preceding a predetermined amplifier, where the attenuation circuit attenuates an input signal and outputs the input signal to the predetermined amplifier, and a switch that switches an attenuation factor by the attenuation circuit.

Abstract: The invention provides a television-connection-state detecting device that includes: a resistor element that outputs an analog video signal that is to be displayed on a television receiver; a reference voltage generation circuit that generates reference voltages for comparing a voltage signal level at the television-connection-terminal side end of the resistor element and a voltage signal level at the opposite-side end of the resistor element; a first clamping circuit that clamps a voltage signal level at the television-connection-terminal side end of the resistor element at the first reference voltage; a second clamping circuit that clamps a voltage signal level at the opposite-side end of the resistor element at the second reference voltage; a comparison circuit; and a judging unit that judges whether an analog video signal input device is connected to the television connection terminal or not on the basis of a voltage signal level outputted from the comparison circuit.

Abstract: The invention provides an electronic device having a structure operable by the power of a battery pack. The electronic device includes: an authenticating section that authenticates a battery pack connected so as to supply power to determine whether the battery pack is a genuine product; a user interface; and a controller for controlling the electronic device. The controller tries authentication of the battery pack connected so as to supply power with the authentication section. When the battery pack has been authenticated, the discharging of the battery pack is enabled. When the battery pack has not been authenticated, the controller requests the user to input recognition whether the battery pack is a genuine product through the user interface, and changes the control for the battery pack between when the user inputs, in response to the request, the recognition that the battery pack is a genuine product and when the user inputs the recognition that the battery pack is not a genuine product.

Abstract: A sheet recognizing device and method for precisely checking the authentication of a sheet by performing recognition of color and watermark of a sheet and detecting the subtle characteristic of a hue ink printed on one side of the sheet.

Abstract: The invention provides a television-connection-state detecting device that includes: a resistor element that is connected to a television connection terminal that outputs an analog video signal that is to be displayed on a television receiver, the resistor element having the same resistance value as that of a termination resistor of a connection terminal of the television receiver that can be connected to the television connection terminal; a reference voltage generation circuit that generates reference voltages for comparing a voltage signal level at the television-connection-terminal-side end of the resistor element and a voltage signal level at the opposite-side end of the resistor element, the reference voltage generation circuit generating each of the reference voltages in such a manner that a first reference voltage for the television-connection-terminal-side end of the resistor element is higher than a second reference voltage for the opposite-side end of the resistor element by a predetermined level d

Abstract: A sheet recognizing device and method for precisely checking the authentication of a sheet by performing recognition of color and watermark of a sheet and detecting the subtle characteristic of a hue ink printed on one side of the sheet.

Abstract: The invention provides an electronic device having a structure operable by the power of a battery pack. The electronic device includes: an authenticating section that authenticates a battery pack connected so as to supply power to determine whether the battery pack is a genuine product; a user interface; and a controller for controlling the electronic device. The controller tries authentication of the battery pack connected so as to supply power with the authentication section. When the battery pack has been authenticated, the discharging of the battery pack is enabled. When the battery pack has not been authenticated, the controller requests the user to input recognition whether the battery pack is a genuine product through the user interface, and changes the control for the battery pack between when the user inputs, in response to the request, the recognition that the battery pack is a genuine product and when the user inputs the recognition that the battery pack is not a genuine product.

Abstract: An overvoltage output protector is electrically connected to a constant-voltage switching power supply which includes a switching transistor converting a DC voltage obtained by smoothing an AC voltage supplied from an AC power source into a cyclic pulse signal. In the overvoltage output protector, an overvoltage monitor whether a potential of the cyclic pulse signal is a predetermined value or more. A deactivator turns off the switching transistor in a case where the overvoltage monitor judges that the potential of the cyclic pulse signal is the predetermined value or more.

Abstract: A sheet paper identification apparatus and method for stably identifying a sheet paper while preventing erroneous identification caused by dust adhered to an imaging section and caused by fluctuation in illumination brightness. An imaging section (7) images the interior of the imaging section (7) before a sheet paper is fed to capture image data on an image showing no sheet paper. When a sheet paper is fed into the imaging section (7), the imaging section (7) images the sheet paper and captures image data on an image showing a sheet paper. An image data analyzing section (8) creates a density histogram of the image showing no sheet paper from the image data on the image showing no sheet paper and detects dust adhered to the imaging section (7) on the basis of the density histogram. If the amount of particles exceeds a reference value, the image data analyzing section (8) sends a report about the abnormality of the imaging section (7) to a control section (2).

Abstract: A sheet identifying device and method for identifying the kind of sheet or checking a sheet correctly by reducing the adverse influence of the wrinkle and stain of the sheet and of the displacement of a watermark pattern from the watermark area. A transmission optical sensor (8) images a sheet. A watermark area extracting section (12) extracts image data on a watermark area. A watermark area gravity center calculating section (13) calculates the center of gravity of the watermark area. A watermark pattern displacement calculating section (14) calculates the displacement of the watermark pattern from the center of gravity. An identification object image extracting section (15) extracts identification object image data with reference to the displacement. A scratch/stain detecting section (7) calculates the difference between the identification image data and a true template to extract an image of a scratch and stain.

Abstract: A sheet identifying device and method for identifying the kind of sheet or checking whether a sheet is a genuine or counterfeit one correctly without influence of the state of the sheet. Data on the image of a sheet is acquired, and the image data is binarized according to a watermark region extraction threshold. Image data on the watermark region is extracted according to the sheet image data. The watermark region image data is binarized according to a watermark pattern extraction threshold. The center of gravity of the watermark region is calculated on the basis of the watermark region image data. The watermark region image data is divided into divisions using the center of gravity of the watermark region as the origin. From the watermark region image data, image data on a predetermined specific region is extracted. Values of distinctive features such as the center of gravity and area of the watermark pattern included in the specific region image data are extracted.

Abstract: An overcurrent output protector is electrically connected to a constant-voltage switching power supply provided with a switching transistor which converts a DC voltage obtained by smoothing an AC voltage supplied from an AC power source into a cyclic pulse signal. In the overcurrent output protector, duty ratio monitor judges whether an ON duty ratio of the cyclic pulse signal is a predetermined ratio or more. A deactivator turns off the switching transistor in a case where the duty ratio monitor judges that the ON duty ratio is the predetermined ratio or more.