Abstract: In an alcohol concentration estimation apparatus for an engine, a first crank angular speed (?1) within a first predetermined interval overlapping with the compression top dead center is calculated, and a first variation amount (??1) is calculated by subtracting ?1 from an average engine speed. A second crank angular speed (?2) within a second predetermined interval overlapping with the combustion bottom dead center is calculated, and a second variation amount (??2) is calculated by subtracting ?1 from ?2. In a relationship between air fuel ratio A/F and an indicated mean effective pressure (IMEP)/charging efficiency (?c) of the engine when the engine is operated with a predetermined fuel injection map indicating a relationship between A/F and IMEP/?c for each desired alcohol concentration, IMEP/?c is substituted by ??2/??1 ratio to estimate an alcohol concentration in fuel. The alcohol concentration estimation apparatus eliminates requirement of sensors for detecting an intake air mass.

Abstract: A portable game system includes two display screens, at least one of which is touch-sensitive. A memory card is selectively connectable to the portable game system.

Abstract: A decorative image is disclosed. In at least one embodiment it is displayed in a decorative image display region and a decorative frame is displayed in a peripheral section of the decorative image so that the decorative frame has a width that is not less than onefold of the width of a frame structure. This makes it possible (i) to make the frame structure that is an actual part of a television receiver less conspicuous and (ii) also to display a decorative image as though the decorative image had a real frame. Consequently, it becomes possible to realize a television receiver that can be used as a part of an interior.

Abstract: A decorative image is displayed in a decorative image display region; a decorative frame is displayed in a peripheral section of the decorative image so that the decorative frame includes at least one color that is in a same range as a color of a frame structure. This makes it possible (i) to make the frame structure that is an actual part of a television receiver less conspicuous and (ii) also to display a decorative image as though the decorative image had a real frame. Consequently, it becomes possible to realize a television receiver that can be used as a part of an interior.

Abstract: A decorative image is displayed in a decorative image display region; in the decorative image, a decorative frame is displayed in a peripheral section of a decorative frame display region, and the decorative frame display region has a surface luminance higher than that of the decorative image display region.

Abstract: A portable game system includes two display screens, at least one of which is touch-sensitive. A memory card is selectively connectable to the portable game system.

Abstract: An inlet valve includes a valve head including a valve surface located at a circumferential edge portion, and a single annular circumferential edge groove disposed radially inside and close to the valve surface in the circumferential edge portion. When intake air (an airflow) proceeds along a surface of the valve head and reaches the circumferential edge portion, only a portion thereof (a partial airflow) enters the circumferential edge groove and the remaining thereof (remaining partial airflow) passes by the circumferential edge groove. As the intake air (the partial airflow) having entered the circumferential edge groove forms a turbulent flow, the intake air surrounds the circumferential edge portion of the valve head and reaches below the circumferential edge portion of the valve head, thereby achieving an increase in volume of air taken into a combustion chamber.

Abstract: A backlight (illumination device) of this invention includes a plurality of light source units (12) each including (i) at least one light source (5) and (ii) a light guide body (7) for surface-emitting light which has come from the at least one light source. In the light source unit (12), the light source is disposed at one end portion of the light guide body (7), and another end portion of the light guide body (7), opposite to the one end portion, has a thickness from 0.05 mm to 0.15 mm. As a result, it is possible to further improve luminance uniformity in an illumination device including a plurality of light guide bodies.

Abstract: A portable game system includes two display screens, at least one of which is touch-sensitive. A memory card is selectively connectable to the portable game system.

Abstract: A backlight (illumination device) 2 of the present invention includes light sources 5, optical guides 7 and 17 for causing a surface emission of light from the light sources 5, and a diffusing plate 8 for diffusing the light emitted via the optical guides 7 and 17. The diffusing plate 8 faces light-emitting surfaces of the optical guides 7 and 17, and is provided with a light-amount adjusting section 11 made from a transflective material and for causing a reduction in amount of light transmitted therethrough. The light-amount adjusting section 11 is provided to correspond to a region which causes a bright line due to the light from the light sources 5, i.e., so that its orthogonal projection to a light-emitting region defined by the light-emitting surfaces covers a boundary between the optical guides 7 and 17. By the above, an illumination device providing high luminance uniformity can be obtained.

Abstract: In each odd-numbered frame, a game image generated by a three-dimensional image processing unit 31 is supplied to a first LCD 11, and then a game image identical to the generated game image is stored in a first VRAM 21a. Also, a two-dimensional image processing unit 37 supplies the game image stored in the immediately-preceding even-numbered frame in a second VRAM 21b to a second LCD 12. On the other hand, in each even-numbered frame, a game image generated by the three-dimensional image processing unit 31 is supplied to the first LCD 12, and then a game image identical to the generated game image is stored in the second VRAM 21b. Also, the two-dimensional image processing unit 37 supplies the game image stored in the immediately-preceding odd-numbered frame in the first VRAM 21a to the first LCD 11.

Abstract: A portable game system includes two display screens, at least one of which is touch-sensitive. A memory card or other device is selectively connectable to the portable game system via in insertable connection port.

Abstract: A 2-cycle engine 1 is provided with an ignition device 8; an exhaust control valve 24; and a controller 40 for controlling the ignition device 8 and the exhaust control valve 24. The controller 40 controls spark ignition combustion by activating the ignition device 8 in a high load range, and controls self-ignition combustion of a mixture in the combustion chamber 10 by adjusting pressure in a cylinder chamber 3a with adjustment of the opening of the exhaust port 21 in a low load range. In a low load and low rotational speed range, moreover, there is formed a stratified mixture field, in which the air and the fuel are much distributed in the central portion 10c of the combustion chamber 10 and in which burned gas remaining in the combustion chamber 10 is much distributed in the outer side 10b of the central portion of the combustion chamber 10, so that the self-ignition combustion of the mixture may be performed by forming the stratified mixture field in the low load and low rotational speed range.

Abstract: An example portable, handheld game console includes a main body incorporating a first display screen, and a cover body incorporating a second display screen. The main body is hingedly connected to the cover body along adjacent forward and rearward edges, respectively, such that the cover body is movable between closed and open positions. The main body is provided with a plurality of control buttons and a pair of game card slots for receiving game cards of different dimensions.

Abstract: An example portable, handheld game console includes a main body incorporating a first display screen, and a cover body incorporating a second display screen. The main body is hingedly connected to the cover body along adjacent forward and rearward edges, respectively, such that the cover body is movable between closed and open positions. The main body is provided with a plurality of control buttons and a pair of game card slots for receiving game cards of different dimensions. One of the game cards is substantially square and comprises a substantially flat card body having a plurality of electrically conductive terminal strips adjacent the forward edge. One of the side edges of the card has a single continuous step configuration along substantially the entire length dimension of the card.

Abstract: The present invention provides a display device which can provide bright display by both of reflective display and transmissive display without having a multi-gap structure and which can reduce a difference in response time between the reflective region and the transmissive region. The display device of the present invention is a display device including: a pair of substrates; a display medium interposed between the pair of substrates; and a pixel having a reflective region for performing reflective display and a transmissive region for performing transmissive display, wherein the display device includes a pixel electrode and a common electrode on one of the pair of substrates, a voltage is applied to the display medium through the pixel electrode and the common electrode, the pixel electrode is provided with a slit, and a shield electrode is arranged between the pixel electrode and the common electrode in the reflective region.

Abstract: The present invention provides a display device which can provide bright display by both of reflective display and transmissive display without having a multi-gap structure and which can reduce a difference in response time between the reflective region and the transmissive region.

Abstract: The present invention is a display device which can provide bright display by both of reflective display and transmissive display without having a multi-gap structure and which can reduce a difference in response time between the reflective region and the transmissive region.

Abstract: A display capable of bright display by both reflection display and transmission display without providing a multi-gap structure and exhibiting a reduced difference in response time between the reflection and transmission regions. The display comprises a pair of substrates and a display medium held between the substrates. In each pixel, a reflection region for reflection display and a transmission region for transmission display are formed. Pixel electrodes and common electrodes are provided on one substrate, and a voltage is applied to the display medium by using the pixel and common electrodes. Each pixel electrode has a slit, and the width of the slit in the transmission region is larger than that in the reflection region.

Abstract: A 2-cycle engine 1 is provided with an ignition device 8; an exhaust control valve 24; and a controller 40 for controlling the ignition device 8 and the exhaust control valve 24. The controller 40 controls spark ignition combustion by activating the ignition device 8 in a high load range, and controls self-ignition combustion of a mixture in the combustion chamber 10 by adjusting pressure in a cylinder chamber 3a with adjustment of the opening of the exhaust port 21 in a low load range. In a low load and low rotational speed range, moreover, there is formed a stratified mixture field, in which the air and the fuel are much distributed in the central portion 10c of the combustion chamber 10 and in which burned gas remaining in the combustion chamber 10 is much distributed in the outer side 10b of the central portion of the combustion chamber 10, so that the self-ignition combustion of the mixture may be performed by forming the stratified mixture field in the low load and low rotational speed range.