Patent application number | Description | Published |
20080218391 | Tracking loop type digital angle converter and angle/digital converting apparatus - A tracking loop type digital angle converter that operates so that a deviation between input and output angles always becomes zero by feeding back the output angle to the input angle, wherein in order to eliminate a case where a control deviation decreases an angle error between the input and output angles is in the vicinity of 180°, i.e., where response becomes low, there are provided a detected signal sign judging section ( | 09-11-2008 |
20090160436 | Reference signal generation circuit, angle converter, and angle detection apparatus - A reference signal generation circuit generates a reference signal used in synchronous detection for removing an excitation signal component in an angle calculation section that converts a detection angle θ obtained from two-phase resolver detection signals output from a resolver, to a digital output angle φ. The reference signal generation circuit includes a first multiplier, a second multiplier, and an adder. The first multiplier multiplies one of the resolver detection signals sin θ sin(ωt+Δω) by the sine value sin φ of the digital output angle φ obtained from the angle calculation section. The second multiplier multiplies the other resolver detection signal cos θ sin(ωt+Δω) by the cosine value cos φ of the digital output angle φ obtained from the angle calculation section. The adder adds the output of the first multiplier and the output of the second multiplier to output the sum signal sin(ωt+Δω) as the reference signal. | 06-25-2009 |
20090160687 | R/D converter and angle detecting apparatus - A band elimination filter | 06-25-2009 |
20100001778 | A/B-Phase Signal Generator, RD Converter and Angle Detection Unit - An A/B-phase signal generator wherein an up/down count unit | 01-07-2010 |
20120320174 | ELECTRONIC ENDOSCOPIC APPARATUS - A CMOS sensor converts optical information into an electric signal, and outputs the converted electric signal as an image signal. An imaging clock generating unit generates an imaging clock acting as a source of a drive signal that drives the CMOS sensor. A drive signal generating unit generates an imaging synchronization signal and a drive signal based on the imaging clock. A display clock generating unit generates a display clock. A display synchronization signal generating unit generates a display synchronization signal based on the display clock. A phase comparing unit compares a phase of the imaging synchronization signal with a phase of the display clock, and controls oscillation of the display clock generating unit based on a result of the comparison. | 12-20-2012 |
20120320175 | ELECTRONIC ENDOSCOPIC APPARATUS - A phase control unit compares a phase of a display synchronization signal with a phase of a clock signal generated from a clock signal generated by an imaging clock generating unit, and controls oscillation of the imaging clock generating unit based on a result of the comparison. A drive signal generating unit generates a drive signal that drives a CMOS sensor based on a multiplication clock signal synchronized to the clock signal. | 12-20-2012 |
20120320176 | ELECTRONIC ENDOSCOPE APPARATUS - The image processor includes a display oscillation circuit that generates a display clock, and a monitor synchronization signal generating part that generates a monitor display synchronization signal based on the display clock. The endoscope includes an imaging oscillation circuit that generates an imaging clock, pixels that are driven based on the imaging clock, converts optical information into electrical signals and outputs the electrical signals as a digital data of a serial form, and a phase comparator that compare the phase of the monitor display synchronization signal with the imaging clock, and control the oscillation of the imaging oscillation circuit. | 12-20-2012 |
20120320177 | ELECTRONIC ENDOSCOPE APPARATUS - A phase comparing unit compares a phase of an imaging-side synchronization signal with a phase of a display-side clock, and controls oscillation of a display-side clock generating unit based on a result of the comparison. A display timing adjusting unit receives a video signal output from an endoscope at a timing based on the imaging-side synchronization signal and adjusts a synchronization timing of the received video signal to a synchronization timing based on a display-side synchronization signal. | 12-20-2012 |
20120323073 | ELECTRONIC ENDOSCOPIC APPARATUS - An imaging device is installed on a scope distal portion, and captures an image based on an imaging clock. An image processor portion performs image processing on the image captured by the imaging device, and displays the corresponding image based on a display clock on a monitor. A scope cable portion transmits data between the scope distal portion and the image processor portion. A clock oscillator generates a master clock. A first multiplying/dividing circuit multiplies and/or divides the master clock by (natural number/natural number), and generates a transmission clock whose frequency is lower than that of the imaging clock and is (natural number) times the frequency of a vertical synchronization signal. | 12-20-2012 |
20130016199 | ELECTRONIC ENDSCOPIC APPARATUSAANM Kobayashi; NaruyasuAACI Kawasaki-shiAACO JPAAGP Kobayashi; Naruyasu Kawasaki-shi JPAANM Kotoda; KaoruAACI TokyoAACO JPAAGP Kotoda; Kaoru Tokyo JPAANM Nishimura; HisashiAACI TokyoAACO JPAAGP Nishimura; Hisashi Tokyo JPAANM Azuma; MotooAACI Tokorozawa-shiAACO JPAAGP Azuma; Motoo Tokorozawa-shi JPAANM Takizawa; KazuhiroAACI TokyoAACO JPAAGP Takizawa; Kazuhiro Tokyo JPAANM Sato; TakayukiAACI TokyoAACO JPAAGP Sato; Takayuki Tokyo JPAANM Tanaka; SatoshiAACI TokyoAACO JPAAGP Tanaka; Satoshi Tokyo JP - An electronic endoscopic apparatus includes an endoscopic scope and an image processing processor. The endoscopic scope includes a slid-state imaging device, an imaging-side multiplying unit, and an imaging synchronization signal generating unit. The image processing processor includes a display clock generating unit, a monitor synchronization signal generating unit, a master imaging clock generating unit, a processor-side multiplying/dividing unit, a phase-comparison oscillation control unit, and a display timing adjustment unit. | 01-17-2013 |
20140218479 | 3D ENDOSCOPE DEVICE - A 3D endoscope device includes an endoscopic scope, an image processor, and an image display device. A line which connects the center of a first image and the center of a second image formed on the light receiving surface of the CMOS sensor is orthogonal to a parallax direction. On the light receiving surface of the CMOS sensor, a first region where the center of the first image and the second image are formed is divided into a plurality of first divided regions, and a second region is divided into a plurality of second divided regions. When reading data constituting video signals from the first region and the second region, the CMOS sensor reads data by alternately scanning the first divided region at a position corresponding to the image for left-eye and the second divided region at a position corresponding to the image for right-eye. | 08-07-2014 |
20150084621 | CURRENT SENSOR - A current sensor includes a magnetic core with a gap in part of a circumference and formed in an annular shape, and a magneto-electric conversion element arranged in the gap, the magneto-electric conversion element detecting magnetic fluxes changing with a measurement target current passing through a hollow part of the magnetic core. The magnetic core is formed by laminating a plurality of materials in a direction except a circumferential direction, and is formed so that magnetic flux densities of two points in an area defined in advance as an area where a sensing part of the magneto-electric conversion element can exist (hereinafter referred to as a sensing part existence area) approximate to each other, the two points being away from each other with a distance in a laminating direction being a length of the sensing part in the laminating direction. | 03-26-2015 |