摘要:
A multiple primary color display device includes a plurality of pixels located in a matrix including a plurality of rows and columns. The pixels are each formed of at least four sub pixels for displaying different primary colors, which can be sorted into n number of virtual pixels, and use each of the n number of virtual pixels as a minimum color display unit for providing display. The sub pixels which form each of the virtual pixels include a sub pixel common to another of the virtual pixels. When a line having a width corresponding to the n number of virtual pixels is displayed, two sub pixels which are located at both of two ends, in a width direction, of the line and display a certain identical primary color to each other have a luminance lower than the original luminance that the two sub pixels.
摘要:
This multi-primary-color display device (100) includes a multi-primary-color display panel (10) and a signal converter (20). The display device assigns a plurality of subpixels that form each pixel to a plurality of virtual pixels and is able to conduct a display operation using each of the plurality of virtual pixels as a minimum color display unit. The signal converter (20) includes: a low-frequency multi-primary-color signal generating section (21) which generates a low-frequency multi-primary-color signal; a high-frequency luminance signal generating section (22) which generates a high-frequency luminance signal; and a rendering processing section (23) which performs rendering processing on the plurality of virtual pixels based on the low-frequency multi-primary-color signal and the high-frequency luminance signal. The signal converter (20) further includes a magnitude of correction calculating section (24) which calculates, based on an input image signal, the magnitude of correction to be made on the high-frequency luminance signal during the rendering processing.
摘要:
Provided is an image processing apparatus that obtains an effect of improving perceived definition even when an input image signal does not include much of a high range component. The image processing apparatus (10) includes a high-pass filter (1) that extracts a mid-high range component from the input image signal; a nonlinear processing unit (2) that performs nonlinear processing on an output signal from the high-pass filter (1); an addition unit (3); a threshold value determination unit (4) that determines an upper threshold value and lower threshold value for clipping processing based on the maximum value and minimum value of the pixel values in the input image signal in the range thereof that was subjected to processing by the high-pass filter (1); a clipping unit (5) that performs clipping processing using the upper threshold value and lower threshold value; a high-pass filter (6) for an output signal from the clipping unit (5); a non-linear processing unit (7) that performs non-linear processing on an output signal from the high-pass filter (6); and an addition unit (8) that adds an output signal from the non-linear processing unit (7) and the output signal from the clipping unit (5).
摘要:
An image processing apparatus where noise in a dark region indicated by an input image signal may be reduced and perceived fineness of texture may be enhanced is provided. It includes: a high pass filter (11) that extracts a high frequency component from an input image signal; a sign determining unit (12) that determines the sign of the high frequency component; a brightness value calculator (14) that determines the brightness value of the input image signal; and a parameter determining unit (gain value determining unit) (13) that determines a parameter (for example, a gain) to be used in the image processing for the high frequency component processor based on the brightness value and the sign information. The parameter determining unit (13) determines the parameter such that the degree to which shoot in the high frequency component is reduced when the sign information indicates positive is larger than the degree to which shoot in the high frequency component is reduced when the sign information indicates negative if the brightness value of the input image signal is not greater than a predetermined value.
摘要:
When a throttle is fully open, a maximum torque set value is corrected based on the ratio between the maximum air volume set value under fully-open throttle conditions and the actual maximum air volume detected by an intake air volume meter such as an air flow sensor. Based on the corrected maximum torque set value, both the relation between the degree of accelerator opening and target torque and the relation between the target torque (target air volume) and the degree target throttle opening are corrected. Thus, even when various types of disturbances relating to torque error are generated, such as variations in air density generated in association with variations in temperature or altitude, variations over time such as contaminations of throttle chambers, or difference between machines such as engine bodies or auxiliary machines, it is possible to generate actual torque with respect to a target torque with a high degree of accuracy, while maintaining a desired relation between the degree of accelerator opening and the throttle opening.
摘要:
The invention provides an engine controller, which can determine a deterioration mode (gain deterioration or response deterioration) of an air/fuel (A/F) ratio sensor, can detect a degree of the deterioration with high accuracy, and can optimize A/F ratio feedback control in accordance with the diagnosis result. The controller includes a unit for computing frequency response characteristics in a range from an A/F ratio adjusting unit to the A/F ratio sensor, and it diagnoses the A/F ratio sensor based on a gain characteristic and a response characteristic given by the computed frequency response characteristics. In accordance with the diagnosis result, parameters (P- and I-component gains) used in A/F ratio feedback control (PI control) are optimized.
摘要:
An internal combustion engine controller for automobiles which realizes torque increasing performance and exhaust gas purifying performance in a well-balanced manner even when a high-response torque increase is demanded in uniform charge stoichiometric combustion which is operated at a value close to the theoretical air-fuel ratio in torque base type engine control. The internal combustion engine controller comprises target torque computation means for computing the target torque based on the demand torque of the internal combustion engine such as the operation quantity of an accelerator, means of computing the target throttle angle based on the target torque, and torque assist control means for assisting torque based on the state of the target torque and the operation state of the internal combustion engine. The above torque assist control means carries out torque assist control by increasing the quantity of fuel when a torque increase is demanded.
摘要:
In a system which applies a torque-based control to a direct injection engine with a turbocharger and is capable of switching between stoichiometric running and lean-burn running in accordance with a driving state, in order to provide a means for obtaining preferred exhaust performance and driveability, a turbo lag index is computed on the basis of supercharged pressure information or air intake pipe pressure information which are obtained directly or indirectly, and then a throttle opening or a fuel injection quantity is corrected on the basis of the above-described turbo lag index to obtain desired torque and exhaust characteristics. As a result, it is possible to prevent a torque variation, a change in torque characteristics, exhaust deterioration, or the like in a transient time, which are generated due to a turbo lag.
摘要:
A diagnostic device and method of an engine exhaust purifying system, which perform active control of an air-fuel ratio and can make diagnosis of air-fuel ratio sensors, catalysts, etc. in the engine exhaust purifying system with high accuracy and reliability while avoiding a worsening of exhaust emissions, an increase of revolution variations, etc. The diagnostic device comprises an exhaust air-fuel ratio control unit for performing control to keep an air-fuel ratio of exhaust gas flowing into a main catalyst near a stoichiometric ratio in accordance with outputs of downstream air-fuel ratio sensors, a rich/lean switching unit for switching over an air-fuel ratio in each of the cylinder groups to be rich or lean, thereby making diagnosis of each downstream air-fuel ratio sensor, a response detecting unit for detecting a response of the downstream air-fuel ratio sensor when the rich/lean switching of the air-fuel ratio in each cylinder group is performed, and a downstream sensor deterioration determining unit for determining a deterioration of the downstream air-fuel ratio sensor based on the detected response.
摘要:
A CCD type solid state imaging device including a plurality of vertically arranged light receiving elements, a plurality of vertical charge transfer electrodes associated with the light receiving elements and transfer channels through which signal electrical charges stored in the light receiving elements are readout and transferred in the charge transfer direction by the transfer electrodes. The present invention features that unlike the conventional CCD type solid state imaging device, the boundary line between at least a part of the vertical charge transfer electrodes and a part of the vertical charge transfer electrodes adjacent thereto is held aslant with respect to the transfer channels so that the vertical transfer efficiency of the device is increased without incurring a reduction in the amount of signal charges being handled and the readout of the signal charges stored in the light receiving elements to the transfer channels is performed more smoothly than the conventional device.