Patent application number | Description | Published |
20090010034 | START SIGNAL DETECTOR CIRCUIT - A variation of a threshold of diode-connected transistors is compensated for to maintain a constant rectification efficiency of a rectifier circuit, thereby enabling stable detection of a start signal. A constant voltage is applied to DC bias terminal of cascaded half-wave voltage doubler rectifier circuits (including MOS transistors M | 01-08-2009 |
20090187688 | INFORMATION STORAGE DEVICE, INFORMATION PROCESSING SYSTEM, AND SETTING METHOD OF DATA TRANSFER MODE OF INFORMATION PROCESSING DEVICE - An information storage device includes a storage that stores transfer data from an information processing device, the information storage device being removably connected to the information processing device, a switch unit that switches a data transfer mode of the information processing device in accordance with manipulation by a user, and a controller that controls the information processing device to transfer data in a mode in which data temporarily stored in a data storing area is transferred to the storage or in a mode in which data is transferred to the storage without being temporarily stored in the data storing area in accordance with the selection of the data transfer mode by the switch unit. | 07-23-2009 |
20110121864 | START SIGNAL DETECTOR CIRCUIT - The nonlinearity effect of a rectifying element is enhanced, and further a resonant circuit is used to enlarge the input amplitude. Furthermore, the rectifying efficiency of a detection rectifier circuit is enhanced, thereby allowing the gain of an amplifier circuit in the following stage to be set to a low value. Signals having mutually opposite phases are inputted to RF input terminals ( | 05-26-2011 |
20110204927 | ELECTRONIC CIRCUIT SYSTEM, TRACK HOLD CIRCUIT MODULE, ELECTRONIC CIRCUIT OPERATION CONTROL METHOD, AND PROGRAM THEREOF - Provided is an electronic circuit system which facilitates skew timing adjustment while preventing increase of power consumption. An electronic circuit system includes: a track hold circuit module formed by a hierarchical tree structure of track hold circuits which can track-hold an analog value of an analog signal; and a control signal generation module which supplies an operation control signal to each of the track hold circuits in the hierarchical tree structure. In the hierarchical tree structure, the number of track hold circuits of each of the hierarchies is stepwise changed from the first hierarchy of the input side to which an analog signal is inputted, toward the final hierarchy of the final output side as the number of hierarchies is increased. | 08-25-2011 |
20120020677 | RECEIVING DEVICE AND DEMODULATION DEVICE - To adequately perform sampling, a receiving device that solves problems that involve an increase in circuit area and an increase in cost, is provided. | 01-26-2012 |
20120112937 | ANALOG-TO-DIGITAL CONVERSION DEVICE AND ANALOG-TO-DIGITAL CONVERSION METHOD - An analog-to-digital conversion device which converts an analog input signal into a digital signal and output it includes a signal characteristic detection unit for detecting a predetermined characteristic of the input signal; a control signal generation unit for setting a resolution based on the signal characteristic detected by the signal characteristic detection unit, generating a control signal that indicates only an operation required for performing the analog-to-digital conversion at the resolution, and outputting it; and an analog-to-digital conversion unit for restricting the operation based on the control signal and converting the input signal into the digital signal at the set resolution. | 05-10-2012 |
20130027236 | A/D CONVERSION DEVICE AND A/D CONVERSION CORRECTING METHOD - An A/D conversion unit performs an A/D conversion operation twice during a hold period of an analog value. In a first conversion operation, the A/D conversion unit compares the analog value with a first reference voltage and outputs a comparison result as first converted data. In a second conversion operation, the A/D conversion unit compares the analog value with a second reference voltage and outputs a comparison result as second converted data. The second reference voltage is a voltage obtained by adding or subtracting a minimum resolution voltage to or from the first reference voltage. A digital processing unit averages errors of the first and second converted data by digital processing to detect an A/D conversion error, and feeds back a detection result to the A/D conversion unit as a control value to perform voltage control. | 01-31-2013 |
20150063825 | SIGNAL SYNCHRONIZATION TRANSMISSION SYSTEM, SYNCHRONIZATION DRIVE SYSTEM FOR OPTICAL MODULATOR, SIGNAL SYNCHRONIZATION TRANSMISSION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM THEREOF - The present invention includes optical phase modulation circuits ( | 03-05-2015 |