Patent application number | Description | Published |
20090153596 | IMAGE DISPLAYING METHOD, IMAGE DISPLAYING DEVICE, AND CONTRAST-ADJUSTING CIRCUIT FOR USE THEREWITH - A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense. | 06-18-2009 |
20090262245 | CONTRAST ADJUSTING CIRCUITRY AND VIDEO DISPLAY APPARATUS USING SAME - With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals. | 10-22-2009 |
20090262259 | CONTRAST ADJUSTING CIRCUITRY AND VIDEO DISPLAY APPARATUS USING SAME - With the aim of offering a video display technique by which stable and high contrast video images are reproduced, contrast adjusting circuitry is constructed. The contrast adjusting circuitry detects a maximum picture level (MPL) and an average picture level (APL) of analog-to-digital converted luminance signals for a predetermined period, determines one of the predefined luminance regions within which the MPL falls and one of the predefined luminance regions within which the APL falls, and, based on the thus determined luminance regions of both MPL and APL, carries out a contrast adjustment of video images by changing the gain of luminance signals and color depth correction by changing the gain of color signals. | 10-22-2009 |
20100177248 | IMAGE DISPLAYING METHOD, IMAGE DISPLAYING DEVICE, AND CONTRAST-ADJUSTING CIRCUIT FOR USE THEREWITH - A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense. | 07-15-2010 |
Patent application number | Description | Published |
20090059083 | IMAGE DISPLAYING METHOD, IMAGE DISPLAYING DEVICE, AND CONTRAST-ADJUSTING CIRCUIT FOR USE THEREWITH - A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense. | 03-05-2009 |
20090163164 | RECEPTION DEVICE, RECEPTION METHOD AND PROGRAM - A reception device includes: an AGC circuit adapted to control the amplitude of a receive signal; a correction circuit adapted to correct the flutter component in the output signal of the AGC circuit; a synchronization circuit adapted to establish synchronization with the signal whose flutter component has been corrected by the correction circuit; and an equalization circuit adapted to perform an equalization process based on the signal with which synchronization has been established by the synchronization circuit and output the equalized signal, wherein the correction circuit includes a detection circuit, an IIR filter, a gain circuit, a flutter component correction circuit, and a gain control circuit. | 06-25-2009 |
20090276670 | RECEPTION APPARATUS, RECEPTION METHOD, AND PROGRAM - A reception apparatus that receives a signal, including, a correction section, an error detection section, a filtering section, and a setting section is provided. | 11-05-2009 |
20090310713 | RECEIVING APPARATUS, RECEIVING METHOD, AND PROGRAM - The present invention provides a receiving apparatus including: a capturing section configured to correct an error of a receive signal and capture the receive signal; a filtering section configured to remove a low frequency component of a signal indicative of an integrated value of an error of the receive signal; and a capture detecting section configured to monitor a signal outputted from the filtering section and, if the signal is within a predetermined range for a predetermined time, detect that the capturing section has captured the receive signal. | 12-17-2009 |
20120099634 | RECEIVING DEVICE AND METHOD, DEMODULATING DEVICE AND METHOD, AND PROGRAM - The present disclosure provides a receiving device including, a receiver configured to receive a signal that is transmitted via a propagation path and is modulated by a predetermined system prescribed by a predetermined standard, a demodulator configured to demodulate a received signal, an estimator configured to estimate a signal-to-noise ratio relating to the propagation path, obtained from a data signal included in the demodulated received signal, and a corrector configured to correct an estimated signal-to-noise ratio in accordance with a transmission parameter obtained from the received signal. | 04-26-2012 |
20120099676 | RECEPTION APPARATUS AND METHOD, DEMODULATION APPARATUS AND METHOD, AND PROGRAM - A reception apparatus includes: a reception section configured to receive a signal modulated by one of a single-carrier scheme and a multi-carrier scheme that are specified by a predetermined standard; a single-carrier demodulation section configured to execute single-carrier demodulation based on the single-carrier scheme onto the signal; a multi-carrier demodulation section configured to execute multi-carrier demodulation based on the multi-carrier scheme onto the signal; and a demodulation control section configured to control such that one of the single-carrier demodulation and the multi-carrier demodulation is tried on the received signal in accordance with a preset predetermined rule. | 04-26-2012 |
20120106660 | RECEPTION APPARATUS, RECEPTION METHOD, DEMODULATION APPARATUS, DEMODULATION METHOD, AND PROGRAM - Disclosed herein is a reception apparatus including: a reception section configured to receive a signal modulated by a predetermined system defined by a predetermined standard; a decoding section configured to decode transmission parameters included in the received signal; an acquisition section configured to acquire from among sequentially decoded transmission parameters the parameters used in a demodulation process performed on the received signal; and a control section configured such that if the acquired transmission parameters used in the demodulation process on the received signal are different from the sequentially decoded transmission parameters, then the control section controls the demodulation process on the received signal based on newly decoded transmission parameters. | 05-03-2012 |
20120250797 | SIGNAL RECEIVING APPARATUS, SIGNAL RECEIVING METHOD AND SIGNAL RECEIVING PROGRAM - Disclosed herein is a signal receiving apparatus including: a data-loss detection section configured to detect a data loss from a received signal; and a timing adjustment section configured to adjust a processing timing by the quantity of the data loss on the basis of the detection result of the data loss. | 10-04-2012 |
20120306989 | SCANNING OPTICAL DEVICE THAT SCANS PHOTORECEPTOR WITH LASER LIGHT AND IMAGE FORMING APPARATUS - A scanning optical device that scans a photoreceptor with laser light includes a light source, a light outputting section, and a projection. The laser light from the light source is output through the light outputting section so that the photoreceptor is irradiated with the laser light. The projection projects through a partition wall toward the photoreceptor. The light outputting section is disposed in a position separated from the photoreceptor by the partition wall. The projection contains a polygon motor that rotates a polygon mirror to reflect the laser light. | 12-06-2012 |
20130188005 | IMAGE FORMING APPARATUS - An image forming apparatus includes a scanning optical device which performs scanning on a photosensitive drum with laser light. The scanning optical device includes a polygon motor unit, an emergence unit and a projecting unit. The polygon motor unit includes a polygon mirror which performs the scanning on the photosensitive drum with the laser light emitted from a light source. The laser light emerges from the emergence unit so that the photosensitive drum is irradiated with the laser light. The projecting unit projects to a first side where the photosensitive drum is disposed from a partition wall. The polygon motor unit is disposed in the projecting unit. The emergence unit is disposed on a second side separated from the first side by the partition wall. A gap is provided between the partition wall and the scanning optical device. | 07-25-2013 |
20140029661 | RECEPTION DEVICE AND RECEPTION METHOD - The present technique relates to a reception device and a reception method which can improve equalization performance. An equalization processing unit has a time domain equalization unit which equalizes a received signal in a time domain and a frequency domain equalization unit which is provided in parallel to the time domain equalization unit and which equalizes the received signal in a frequency domain, and performs control of switching between the time domain equalization unit and the frequency domain equalization unit. The present technique can be applied to, for example, equalize a signal of data transmitted by way of single carrier transmission or data transmitted by way of multicarrier transmission. | 01-30-2014 |
20150277270 | IMAGE FORMING APPARATUS AND EXPOSURE POSITION ADJUSTING METHOD - According to an image forming apparatus and an exposure position adjusting method of one aspect of the present invention, an exposure section scans a plurality of light beams to form a plurality of electrostatic latent images periodically along a main-scanning direction of the photoreceptor at a predetermined pitch in a sub-scanning direction of the photoreceptor. Next, a surface potential detecting section detects electric potentials of the plurality of electrostatic latent images formed on the surface of the photoreceptor, along the main-scanning direction. Furthermore, a controller calculates exposure timings by the plurality of light beams in the exposure section on the basis of a detection result by the surface potential detecting section. | 10-01-2015 |
Patent application number | Description | Published |
20140328604 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium. | 11-06-2014 |
20150346643 | TRANSFER ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING SAME - The transfer assembly includes a belt, a transfer device, a contact-and-separation device including a retainer, and a first vibration absorber. The transfer device contacts an image bearer via the belt to form a transfer nip portion between the image bearer and the belt and to transfer the toner image onto one of a surface of the belt and a recording medium carried on the surface of the belt. The contact-and-separation device moves the transfer device to contact and separate from the image bearer. The retainer is pivotally supported by a swingable shaft and movable in a first direction in which the transfer device approaches the image bearer and in a second direction opposite to the first direction in which the transfer device separates from the image bearer, to hold the transfer device. The first vibration absorber absorbs vibration transmitted from the swingable shaft to the transfer device via the retainer. | 12-03-2015 |
20150346651 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearer, a nip forming device, a contact-and-separation device, a thickness information retrieving device, and a controller. The contact-and-separation device moves the image bearer and the nip forming device to contact and separate from each other. The controller controls the contact-and-separation device based on information on a thickness of a recording medium obtained by the thickness information retrieving device such that in a case in which a thickness of a preceding recording medium and a thickness of a successive recording medium are different in continuous printing in which a plurality of recording media is printed out continuously, the contact-and-separation device adjusts a space between the image bearer and the nip forming device when the preceding recording medium exits the transfer nip to a preset size corresponding to the thickness of the successive recording medium that enters the transfer nip. | 12-03-2015 |
20160091837 | DRIVE TRANSMITTER, DRIVING DEVICE INCORPORATING THE DRIVE TRANSMITTER, AND IMAGE FORMING APPARATUS INCORPORATING THE DRIVING DEVICE - A drive transmitter, which can included in a driving device and an image forming apparatus, includes a drive transmitter including a drive coupling and a driven coupling. The drive coupling is mounted on a drive output shaft to which a driving force is transmitted and includes a drive claw projecting in an axial direction. The driven coupling is mounted on a driven shaft, faces the drive coupling in the axial direction, and includes a driven claw projecting in the axial direction. A height of at least one of the drive claw and the driven claw in the axial direction gradually decreasing from one end to the other end in a rotation direction of at least one of the drive coupling and the driven coupling. The drive claw and the driven claw come into either one of line contact and point contact with each other in the axial direction. | 03-31-2016 |
20160103404 | TRANSFER UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME - A transfer unit detachably mountable relative to an image forming apparatus includes a plurality of rotational supports, an endless-looped belt disposed opposite to an image bearer and movably supported by the plurality of rotational support to contact the image bearer to form a transfer portion at which the toner image is transferred, a contact-and-separation device to move the belt to contact and separate from the image bearer, a base to support the plurality of rotational supports, a belt pressing member disposed facing the belt and detachably mountable relative to the base to contact an end portion of the belt, and a first stopper to prevent the belt pressing member from separating from the base while the belt is in contact with the image bearer by the contact-and-separation device and to allow the belt pressing member to separate from the base while the belt is separated from the image bearer. | 04-14-2016 |