International Business Machines Corporation

Nec Corporation

Au Optronics Corporation

Kazuo Sekiya

Tadashi Fukuzawa

Junya Shimizu

Hajime Nakamura

Hironao Sone

Hiroshi Ishikawa

Yoshihisa Kanada

Yuichi Shiraishi

Sanehiro Furuichi

Tadanobu Inoue

Yukio Yokoyama

Susumu Shimotono

Yoshinao Kobayashi

Noboru Kamijo

Toru Aihara

Yeong-Chang L Lien

Akihiro Kuroda

Kenji Takamoro

Yeong-Chang Lien

It is an object of the present invention to output a clear, expanded image wherein step-shapes or chain-shapes of oblique lines are reduced, distortion is eliminated and no constituent lines of fonts or graphics are missing. An image transform method, for transforming original input image data into image data expanded by a ratio represented by a rational number or an integer, comprises: a vertical and horizontal interpolation unit, for reducing correlation in the vertical and horizontal directions of interpolated image data linearly expanded from an original image data input unit, and for generating first expanded image data; an oblique interpolation unit, for performing linear interpolation, based on correlation with a target pixel constituting the original image data and neighboring pixels arranged in oblique directions, using the neighboring pixels to generate second expanded image data; and a final result generator for employing the first expanded image data and the second expanded image data to generate a final image.

Image transform method for obtaining expanded image data, image processing apparatus and image display device therefore

An optical link module of the present invention for connecting light beams by deflection and including light-emitting devices arranged in a planar manner; an optical fiber bundle that is an optical waveguide for receiving the light beams from the light-emitting devices, and an optical turn which includes a plurality of aspherical lenses which are disposed between the light-emitting devices and the optical fiber bundle and are formed while corresponding to the number of the light-emitting devices and the number of optical fibers.

Optical link module, optical interconnection method, information processor including the optical link module, signal transfer method, prism and method of manufacturing the prism

Image transform method for obtaining expanded image data, image processing apparatus and image display device therefor

A system (method and program for storing the method) for displaying an image, includes a motion object detector for detecting a motion object in image information inputted to the system, a recognizing device for recognizing a moving state in the motion object detected by the motion object detector, a modification information adder for adding modification information to the image information in regard to the motion object detected by the motion object detector based on the moving state recognized by the recognizing device, and a display device for displaying the image information having been added with the modification information by the modification information adder.

System for displaying image, method for displaying image and program thereof

A liquid crystal display drive circuit includes capacitance predicting section for predicting a capacitance value each pixel will reach at one refresh cycle later when applying a predetermined voltage for targeted brightness, a frame buffer for storing the predicted capacitance value, and overdrive voltage calculating section for calculating a voltage to be applied to each pixel based on targeted brightness at one refresh cycle later and the stored capacitance value in frame buffer.

Liquid crystal display device

An overdrive controller for driving a liquid crystal display includes a change rate Rst calculating section for comprehending a transition state from a present brightness to a targeted brightness for each of R, G and B sub-pixels, a select section for selecting the sub-pixel with the slowest transition and the other sub-pixels from the comprehended transition states, and an overdrive voltage calculating section for calculating a voltage to accelerate a transition of brightness for the sub-pixel with the slowest transition. The overdrive controller further includes, an effective brightness Yst' calculating section and Yst&#x2032; overdrive voltage calculating section for calculating a voltage to accelerate or to decelerate a transition of brightness for the other sub-pixels in order to coordination with each other, wherein the voltage is switched by a switchto be supplied.

It is one object of the present invention to obtain a clear scaled image, without impairing the rough shape of fonts or the like, on a graphics screen that is handled by an information display device such as an LCD panel or a projector, and that includes a lot of stepped edges like thin lines. According to the present invention, an image processing apparatus for applying a resolution conversion on original image data to generate a converted image scaled by rational number or integral number of times, comprises: an original image data input unit for inputting the original image; an algorithmic nonlinear processing unit for generating a first converted image data, wherein connect relations are maintained for a line width included in the original image data even after the resolution conversion; a multirate processing unit for generating a second converted image data, wherein the resolution conversion is performed on the original image data while maintaining a rough shape of the line width; and a mixing unit for mixing the first converted image data and the second converted image data according to the weighting by a weight determination unit

Image conversion method, image processing apparatus, and image display apparatus

According to the present invention, an image processing apparatus includes an original image data input unit for receiving the original low resolution image data; a connection detector for detecting a connection of a target pixel in the original image data and neighboring pixels; a rule application unit for employing a relationship between a coordinate position of a pixel in the original image data and a coordinate position of a resultant pixel in the expansion image data to define a plurality of types into which the relationship can be sorted, and for applying a specific rule for the plurality of types; and a results output unit for determining the value of the resultant pixel in accordance with the rule, and for outputting the expansion image data, wherein, when the connection detector ascertains that the target pixel constitutes a one-pixel width line, the rule application unit applies a rule that will maintain the one-pixel width even in the expansion image data.

To change the frequency of a video clock without adversely affecting a display quality. To lower the frequency of a video clock, following steps are executed, detecting an opportunity which causes the reduction of the frequency of the video clock; lowering the frequency of the video clock in a frequency range within which a circuit employing the video clock (for example, a PLL (Phase Lock Loop) circuit) can follow a change in the frequency; and iterating the step of lowering the frequency of the video clock until a predetermined frequency is attained. In addition, the following steps are also performed, detecting an opportunity which causes the reduction of the frequency of the video clock; lowering the frequency of the video clock to a predetermined frequency during a vertical blanking interval of a display device that employs the video clock; and maintaining the predetermined frequency of the video clock until change of the frequency is required. Furthermore, the following steps are performed, detecting an opportunity which causes the reduction of the frequency of the video clock; changing a display color on a screen of a display device to a color for which flickers are not outstanding; and lowering the frequency of the video clock.

Apparatus and method for a personal computer system providing non-distracting video power management

The object of the present invention is to balance power saving and useability in a computer system. According to a first aspect of the present invention, when predetermined activities of a device in a computer system, each of which occurs within a predetermined period t.sub.1 after the previous predetermined activity, succeed for a predetermined period t.sub.2 or longer, a substantial frequency of a central processing unit is raised. According to a second aspect of the present invention, a substantial frequency of the CPU is raised after a disk drive has been accessed, and if a predetermined activity performed by a device other than the disk drive occurs within a predetermined period t.sub.4 following the raise of the frequency, the substantial frequency of the CPU is lowered when a predetermined period t.sub.3, following the predetermined activity, has passed.

Computer system, device and operation frequency control method

Common electrode driving device in a liquid crystal display

To enable a computer system such that each local arbiter is supposed to output its own priority as the right to use the bus on a common arbitration bus through open-collector-type drivers to determine a winner in arbitration, to expand the bus by way of a channel different from bus signal lines. Certain representation features 73 and 79 having the functions of a local arbiter that represent the arbitration level of the other bus are provided in both a primary system and a secondary system linked via a channel in a signal transmission mode different from the signal transmission mode of the bus. Arbitration is first conducted on each of the buses of the primary and secondary system to determine winners in arbitration. Notification of the arbitration level of each winner is made through a channel to the representation feature on the other bus. After this notification, arbitration is conducted once again between a winner in arbitration on each bus and the representation feature representing the arbitration level of the other bus to determine a final winner.

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Tokyo-to, Japan

Kazuo Sekiya