Seiichi Ozawa
Seiichi Ozawa, Wako-Shi JP
Patent application number | Description | Published |
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20100238951 | VIDEO SIGNAL TRANSMISSION DEVICE, VIDEO SIGNAL RECEPTION DEVICE, AND VIDEO SIGNAL TRANSMISSION SYSTEM - A video transmission device | 09-23-2010 |
20100266080 | TRANSMISSION DEVICE, RECEIVING DEVICE AND COMMUNICATION SYSTEM - Provided are a transmission device, a receiving device, and a communication system having a simple configuration and capable of reliably executing the confirmation of a changed bit rate. The communication system | 10-21-2010 |
20100295587 | PLL FREQUENCY SYNTHESIZER - In a PLL frequency synthesizer, a loop is constituted by a phase comparison unit, a gate unit, a charge pump, a capacitive element, a potential adjustment unit, a voltage-controlled oscillator, and a feedback division unit. In this loop, the gate unit and the charge pump are provided in parallel with the potential adjustment unit. A charging/discharging current is input from the charge pump to the capacitive element and the potential of a first end of the capacitive element is adjusted by the potential adjustment unit, so that a phase difference between a reference oscillation signal and a feedback oscillation signal input to the phase comparison unit is small. | 11-25-2010 |
20110317747 | TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING/RECEIVING SYSTEM, AND IMAGE DISPLAY SYSTEM - A data reception unit 21 of a reception device 20 | 12-29-2011 |
20120187990 | CLOCK DATA RESTORATION DEVICE - A clock data restoration device ( | 07-26-2012 |
20120306845 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION-RECEPTION SYSTEM, AND IMAGE DISPLAY SYSTEM - Reception devices | 12-06-2012 |
20140285715 | VIDEO SIGNAL TRANSMISSION DEVICE, VIDEO SIGNAL RECEPTION DEVICE, AND VIDEO SIGNAL TRANSMISSION SYSTEM - A video transmission device | 09-25-2014 |
Seiichi Ozawa, Wakoh-Shi JP
Patent application number | Description | Published |
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20150355242 | Output Current Monitoring Circuit - A current monitoring circuit capable of being integrated onto an integrated circuit chip with the current source to be monitored, wherein the monitored current is digitized to be transmitted within and external to the host integrated circuit chip. The current monitoring circuit was originally conceived to monitor output current of a buck switching regulator but can be used in other applications. A replica transistor is drain connected to a replicated transistor, wherein an operational transconductor controls the replica transistor to produce the same current that flows in the replicated transistor and connects a copy of the current of the replicated transistor current to an integrating type ADC. | 12-10-2015 |
Seiichi Ozawa, Wakoh JP
Patent application number | Description | Published |
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20160141957 | Output Current Monitor Circuit for Switching Regulator - A circuit and method for providing switching regulation with an improved current monitor comprising a pulse width modulation (PWM) controller configured to provide an output signal voltage, an output stage configured to provide switching comprising a first and second transistor, and first inverter, a sense circuit configured to provide signal sensing from said output stage, a sampling switch circuit configured to provide sample signals from said sense circuit, a differential integrator circuit configured to provide sample signals from said sampling switch circuit, a comparator configured to provide signals from said integrator circuit, a control logic circuit configured to provide signals from said comparator, a current digital-to-analog converter (DAC) configured to provide feedback signal from said control logic circuit, and, a digital filter configured to provide output current information. | 05-19-2016 |