Abstract: The present invention provides high-accuracy image input capable of correcting for uneven lighting due to the shape of the subject, its reflectivity, its positioning and ambient light conditions, without increasing the scale of the circuitry or its costs. The image input apparatus of the present invention has an LED that projects light onto the subject, a sensor including a plurality of pixels arranged two-dimensionally and that detects light reflected back from the subject, and a controller that changes the LED irradiation conditions in a cycle longer than that for a single screen.

Abstract: An image display apparatus includes an image signal generating unit for generating an image signal and an image display element for displaying an image on a screen according to the image signal inputted from the image signal generating unit. When the screen is divided into a portion in which the image is to be displayed and a dark display portion in which no image is to be displayed, a non-dark display is performed in the dark display portion for a very short time period from a start time of display control until a start time of a process for terminating the display control.

Abstract: The present invention provides an image sensor device for living body authentication, which achieves both of a high precision and a high authentication speed while reducing costs of the image sensor device and miniaturizing the device. There is provided an inexpensive fingerprint authentication system having a high performance in, for example, a portable terminal. The image sensor device for acquiring image information has an image sensor element, a tone conversion unit having a variable gain amplifier, and a tone conversion characteristic changing unit, and the tone conversion characteristic changing unit is controlled so as to change offset conditions of an image signal and change the tone conversion characteristics during the acquiring of the whole image.

Abstract: The invention provides a biometric authentication apparatus made compact and inexpensive while retaining convenience of use, and also a biometric authentication apparatus capable of preventing mutual interference of plural different authenticating methods thereby attaining a high authenticating precision. The invention provides a biometrics authentication apparatus for executing different plural biometric authentications including first image acquisition means; second image acquisition means; control means for controlling operations of the first and second image acquisition means, and an authentication part which executes an authentication utilizing image data obtained from the image acquisition parts. In at least a part of the authentication part, a common transfer path is provided for the image data obtained from the first image acquisition means and the image data obtained from the second image acquisition means.

Abstract: An inexpensive and simple circuit for improving the quality of a dynamic image, with appropriate, flexible dynamic image qualities processing, even with plural input signal sources. A memory unit has a region for storing images of at least one screen, and a memory control unit for writing image data to the memory unit on the basis of a first clock and a first image synchronizing signal and for outputting image data read out from the memory unit on the basis of a second clock and a second image synchronizing signal. A clock generating unit provides the second clock, and a synchronizing control unit inputs the second clock and outputs the second image synchronizing signal. The synchronizing control unit generates one signal asynchronous to the first image synchronizing signal, by dividing the second clock, and another that is and synchronized with the first synchronizing signal, by using the second clock, and selects one of the signals it has produced to be output as the second image synchronizing signal.

Abstract: Image qualities of a full color image can be changed as needed by arranging two flat round color filter plates so as to overlap each other in part and so as to be selectively rotationally driven. Further, these color filter plates and are set so that the color characteristics thereof are mutually different from each other. White light from a lamp is injected into an overlapping portion A of these color filter plates, but this white light is converted into light of each single color as the color filter plate is rotationally driven, and this light irradiates an image display element. At the image display element, an image is switched or changed in synchronization with the irradiation of the light in single colors; therefore, the image is recognized as a color image and the colors of a plurality of color images are mixed to be seen and recognized as full color image. The image qualities of this image are switched or changed by means of changing the driven color filter plates.

Abstract: For generating a plurality of light beams having different colors, time sequentially switching the light beams, illuminating a space modulation unit with the light beam, and projecting light modulated by and emitted from the space modulation unit, a white light illumination period is provided during a period between illumination periods for the plurality of light beams having different colors. An inexpensive and high quality image display apparatus is provided without using specific electronic circuits and space modulation unit and without using optical systems of high performance and large scale.

Abstract: There are provided an image display apparatus and method, which are capable of improving the operability of a white board function thereof, and allowing different devices to be operated on the same screen in a unified manner, and an information processing apparatus having the image display apparatus, and a storage medium storing a program for implementing the method. A control signal input device inputs a control signal. An operation signal output device outputs an operation signal to an external signal source. A memory section stores display screen information. A control signal switching section selectively switches use of the control signal from the control signal input device between a control signal for the display screen information stored in the memory device and the operation signal to be outputted from said operation signal output device.

Abstract: A picture processing apparatus is composed of a plurality of picture processing systems. Each picture processing system includes an identical picture processing IC (integrated circuit) and a plurality of memories each capable of memorizing a picture frame and including at least two memories operating at different timings. The picture processing IC includes a picture processing unit, an operation timing signal generator, a plurality of control timing signal generators for controlling different memories, and a memory control signal selection circuit for selectively outputting one of at least two memory control timing signals. As a result, the number of output pins of each picture processing IC for outputting memory control signal can be reduced, whereby the picture processing apparatus can be produced at a lower cost while retaining an identically large size of the picture processing ICs.

Abstract: To provide an image pick-up apparatus, a fingerprint certification apparatus, and an image pick-up method capable of correcting a light volume unevenness by variation of the light volume in a plurality of light sources. An image pick-up device unit comprises pixels which are two dimensionally arranged, and images an object. A light source consists of a plurality of LEDs arranged in parallel to the main scan direction of the image pick-up device unit, and impinges a light on the object. A LED driving unit controls the luminance of a plurality of LEDs so that the light volume distribution of the center region of the main scan direction in the image pick-up device unit becomes more uniform.

Abstract: An inexpensive and simple circuit for improving the quality of a dynamic image, with appropriate, flexible dynamic image qualities processing, even with plural input signal sources. A memory unit has a region for storing images of at least one screen, and a memory control unit for writing image data to the memory unit on the basis of a first clock and a first image synchronizing signal and for outputting image data read out from the memory unit on the basis of a second clock and a second image synchronizing signal. A clock generating unit provides the second clock, and a synchronizing control unit inputs the second clock and outputs the second image synchronizing signal. The synchronizing control unit generates one signal asynchronous to the first image synchronizing signal, by dividing the second clock, and another that is and synchronized with the first synchronizing signal, by using the second clock, and selects one of the signals it has produced to be output as the second image synchronizing signal.

Abstract: Image qualities of a full color image can be changed as needed by arranging two flat round color filter plates so as to overlap each other in part and so as to be selectively rotationally driven. Further, these color filter plates and are set so that the color characteristics thereof are mutually different from each other. White light from a lamp is injected into an overlapping portion A of these color filter plates, but this white light is converted into light of each single color as the color filter plate is rotationally driven, and this light irradiates an image display element. At the image display element, an image is switched or changed in synchronization with the irradiation of the light in single colors; therefore, the image is recognized as a color image and the colors of a plurality of color images are mixed to be seen and recognized as full color image. The image qualities of this image are switched or changed by means of changing the driven color filter plates.

Abstract: An inexpensive and simple circuit for improving an image quality of a dynamic image, with appropriate processing flexibly performed for dynamic image qualities also for a plurality of input signal sources.

Abstract: A signal processing apparatus includes an image capture device for image capture of a subject and a control member for controlling a first mode and a second mode. In the first mode, the image capture device captures a first partial image of the subject with a plurality of exposure conditions during relative movement of the subject and the image capture device. The control member sets an exposure condition in accordance with the first partial image. In the second mode, the image capture member sequentially captures a plurality of second partial images of the subject in accordance with the exposure condition set by the control member. Thus, the signal processing apparatus can capture images of the subject with an optimum exposure condition.

Abstract: Image qualities of a full color image can be changed as needed by arranging two flat round color filter plates so as to overlap each other in part and so as to be selectively rotationally driven. Further, these color filter plates and are set so that the color characteristics thereof are mutually different from each other. White light from a lamp is injected into an overlapping portion A of these color filter plates, but this white light is converted into light of each single color as the color filter plate is rotationally driven, and this light irradiates an image display element. At the image display element, an image is switched or changed in synchronization with the irradiation of the light in single colors; therefore, the image is recognized as a color image and the colors of a plurality of color images are mixed to be seen and recognized as full color image. The image qualities of this image are switched or changed by means of changing the driven color filter plates.

Abstract: An image display system comprises a plurality of image signal sources adapted to respectively transmit image signals and pieces of display area information specifying the display areas of the respective images represented by the image signals and an image display apparatus adapted to display the images on its display section according to the transmitted pieces of display area information. The image display apparatus has a determining section for determining the presence or absence of an overlapping area on the display section on the basis of the pieces of display area information transmitted from the image signal sources and an erasing section for erasing the image signal of the image to be displayed behind the other image for the overlapping area as determined to exist by the determining section.

Abstract: For enabling a liquid display drive with a low voltage and a high speed, each pixel is provided with a liquid crystal cell 5, a switching transistor 7 and an additional capacitance 9, and the additional capacitances are electrically commonly connected for a block of plural pixels. After the image signal is supplied to the pixels corresponding to the block, the potential of desired one of the common electrode lines 52, 52′, to which the additional capacitances 9 corresponding to the block are connected, is varied and retained at thus varied value.

Abstract: In an image display apparatus having an image processing unit for processing a digital signal, a data memory unit for storing data corresponding to at least one frame of an image, and an image display unit for displaying the image on the basis of an image signal from the image processing unit, the data memory unit can be dismounted, or at least part of the data memory unit can be added/removed.

Abstract: The present invention provides high-accuracy image input capable of correcting for uneven lighting due to the shape of the subject, its reflectivity, its positioning and ambient light conditions, without increasing the scale of the circuitry or its costs. The image input apparatus of the present invention has an LED that projects light onto the subject, a sensor including a plurality of pixels arranged two-dimensionally and that detects light reflected back from the subject, and a controller that changes the LED irradiation conditions in a cycle longer than that for a single screen.

Abstract: The present invention provides a projection apparatus utilizing plural light sources, in which the light source principally irradiating the light valve is switched by moving the relative position between the plural light sources and the mirror for guiding the lights outputted from such light source to the light valve. Also the configuration can be simplified by using commonly the light condensing device for the plural light sources.