Patent application number | Description | Published |
20090135304 | DISPLAY DEVICE, IMAGE SIGNAL PROCESSING METHOD, AND PROGRAM - There is provided a display device equipped with a display unit, the display device including a receiving part for receiving a difference signal of a plurality of channels including an image signal and content identification information inserted in a blanking period and outputting the image signal and the content identification information; a light emission amount regulation part for setting a reference duty according to image information of the image signal; an adjustment part for adjusting so that an actual duty is within a predetermined range based on the reference duty and an adjustment signal and adjusting a gain of the image signal so that a light emission amount defined by the actual duty and the gain of the image signal becomes the same as the light emission amount defined by the reference duty; and an adjustment signal generation part for generating the adjustment signal based on the content identification information. | 05-28-2009 |
20100033627 | COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS AND RECEPTION METHOD | 02-11-2010 |
20100239263 | OPTICAL RELAY DEVICE AND OPTICAL RELAY TRANSMISSION SYSTEM - A control-target-value setting unit sets a control target value corresponding to the number of multiplexed wavelengths measured by a number-of-multiplexed-wavelengths measuring unit. A controller controls the variable optical attenuator based on the control target value. An optical amplifier performs an optical amplification with a constant gain regardless of power of a wavelength-multiplexed light. The controller performs feedback control of the variable optical attenuator such that a result of measurement of the total power of the wavelength-multiplexed light coincides with the control target value. | 09-23-2010 |
20100284694 | OPTICAL TRANSMISSION SYSTEM AND REPEATER - A repeater includes a variable optical attenuating unit that collectively attenuates WDM optical signal input, an optical-attenuation adjusting unit that adjusts attenuation in the variable optical attenuating unit, and an optical amplifying unit that collectively amplifies and outputs the WDM optical signal collectively attenuated, to a downstream side. An optical-attenuation adjusting unit includes an input level detector; an output level detector; an output-level transmitting unit that receives information of a signal level of WDM optical signal output by a repeater at an upstream side and transmits information of a signal level of the WDM optical signal detected by the output level detector to a repeater at a downstream side; and an attenuation amount controller that controls the variable optical attenuating unit by calculating an attenuation amount thereof based on information of a signal level detected by the input level detector and a signal level received by the output-level transmitting unit. | 11-11-2010 |
20120217823 | DISPLAY DEVICE AND POWER-SUPPLY NECESSITY DETERMINATION METHOD OF BRANCH DEVICE CONNECTED TO DISPLAY DEVICE - A branch device has a connector for connecting to a display device as a sink device. A pull-up resistor is connected between an internal power source in the branch device and a first terminal in the connector when power supply from the display device is not necessary for the branch device, and a short resistor is connected between the first terminal and a second terminal in the connector when power from the display device is necessary. An evaluation circuit determines whether or not the power has to be supplied from the display device to the branch device by evaluating a voltage appearing at the first terminal when the signal for determination is applied to the second terminal by comparing that voltage to two different reference voltages which are within a range higher than a GND voltage and lower than the voltage of a second internal power source of the device itself. | 08-30-2012 |
20130038795 | COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS AND RECEPTION METHOD - An AV system composed of an HD recorder and a display unit uses a communication interface of the HDMI. An HDMI source of the HD recorder transmits image data (image signal) in the form of differential signals to an HDMI sink of the display unit through three TMDS channels. The HDMI source inserts content identification information for the identification of the type of a content of image data to be transmitted into an AVI InfoFrame packet placed in a blanking period. A control section of the display unit controls operation of a display processing section which carries out a process for displaying for the image data based on the content identification information received by the HDMI sink and a display section for displaying an image. | 02-14-2013 |
20130039643 | OPTICAL COMMUNICATION SYSTEM - An optical communication system including optical transmission systems each includes a transmission processing unit and a receiving processing unit, wherein the transmission processing unit includes an optical transmission unit that converts electric signals into optical signals, an auxiliary optical transmission unit that converts a part of the electric signals into an optical signal having a wavelength other than wavelengths of the optical signals generated by the optical transmission unit, and outputs the generated optical signal to a different transmission processing unit, and a wavelength multiplexing unit, and the receiving processing unit includes a wavelength demultiplexing unit, an optical receiving unit that converts the optical signals having the wavelengths of the optical signals generated by the optical transmission unit into electric signals, respectively, and an auxiliary optical receiving unit that converts the optical signal having the wavelength of the optical signal generated by the auxiliary optical transmission unit. | 02-14-2013 |
20140176800 | COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS AND RECEPTION METHOD - An AV system composed of an HD recorder and a display unit uses a communication interface of the HDMI. An HDMI source of the HD recorder transmits image data (image signal) in the form of differential signals to an HDMI sink of the display unit through three TMDS channels. The HDMI source inserts content identification information for the identification of the type of a content of image data to be transmitted into an AVI InfoFrame packet placed in a blanking period. A control section of the display unit controls operation of a display processing section which carries out a process for displaying for the image data based on the content identification information received by the HDMI sink and a display section for displaying an image. | 06-26-2014 |
20140369662 | COMMUNICATION SYSTEM, TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS AND RECEPTION METHOD - An AV system composed of an HD recorder and a display unit uses a communication interface of the HDMI. An HDMI source of the HD recorder transmits image data (image signal) in the form of differential signals to an HDMI sink of the display unit through three TMDS channels. The HDMI source inserts content identification information for the identification of the type of a content of image data to be transmitted into an AVI InfoFrame packet placed in a blanking period. A control section of the display unit controls operation of a display processing section which carries out a process for displaying for the image data based on the content identification information received by the HDMI sink and a display section for displaying an image. | 12-18-2014 |