Abstract: A video routing system including a plurality of video routers VR(0), VR(1), VR(NR−1) coupled in a linear series. Each video router in the linear series may successively operate on a digital video stream. Each video router provides a synchronous clock along with its output video stream so a link interface buffer in the next video router can capture values from the output video stream in response to the synchronous clock. A common clock signal is distributed to each of the video routers. Each video router buffers the common clock signal to generate an output clock. The output clock is used as a read clock to read data out of the corresponding link interface buffer. The output clock is also used to generate the synchronous clock that is transmitted downstream.

Abstract: An interface for a graphics system includes simple yet powerful constructs that are easy for an application programmer to use and learn. Features include a unique vertex representation allowing the graphics pipeline to retain vertex state information and to mix indexed and direct vertex values and attributes; a projection matrix value set command; a display list call object command; and an embedded frame buffer clear/set command.

Abstract: A graphics controller for high speed transmission for memory read commands. The memory controller chip includes a logic circuit coupled to a first memory. The logic circuit is adapted to respond to a first issued command from a CPU by determining whether the condition that a first command is a memory read command is true. If the condition is true, the logic circuit causes the memory controller chip to store the first command in the first memory and to begin carrying out the first command. If the condition is false, the logic circuit causes the memory controller chip to check whether the memory controller chip is ready to carry out the first command. If the memory controller chip is not ready to carry out the first command, the logic circuit causes the memory controller chip to continue checking and to send a signal to the CPU indicating that the memory controller chip is ready to receive a second command from the CPU.

Abstract: A high performance graphics controller. The graphics controller includes a logic circuit adapted to respond to a first issued command from the CPU by checking whether the memory controller chip is ready to carry out the first command and, if not, to continue checking while sending a signal to the CPU indicating that the memory controller chip is ready to receive a second command from the CPU.

Abstract: A computer implemented method cross-fades intensities of a plurality of overlapping images by identifying pixels in a target image that are only produced by a first source image. The weights of all the corresponding pixels in the first source image are set to one. Pixels in a second source images contributing to the target image are similarly identified and set to one. the weight of each remaining pixel in the first and second images is inversely proportional to a distance to a nearest pixel having a weight of one. Then, the first and second source image can be projected to form the target image.

Abstract: The method of global rendering allows a three dimensional scene to be rendered accurately and viewed correctly from multiple angles and directions at once. The method includes the steps of placing an object representing a multidimensional texture map into a database, replacing the object with a bounding geometry that completely encloses the object, sampling the bounding geometry with a sample of interest, extracting pixel information from the sample of the bounding geometry, and displaying the rendered object using the extracted pixel information.

Abstract: A method for coloring handwriting locus of handwriting input device comprises: (a) Setting the values of the three original colors (red-green-blue, RGB) at the starting point of a handwriting locus as a set of reference values; (b) Choosing the value of one of the original colors as a variable, which is decreased or increased by degrees to thereby obtain a plurality of RGB combinations to be taken as the RGB values of the ensuing locus points until the variable is decreased down to 0 or increased up to 255, and resetting the RGB values of the last combination as a restart set of reference values; (c) Judging whether the locus input action is ceased or not; if “true”, the step is quitted to exit, or continue to the next step if “false; and (d) Choosing the value of another original color as a variable and repeating step (b), except the variable is decreased or increased by degrees in directions reverse to that in step (b), then returning to step (c).

Abstract: A method for adding coloring information to a solid model of an actual object includes the steps of acquiring a solid model for forming a surface shape of the object from a set of multiple planes, and estimating coloring information at the plane, wherein the estimating step comprises the steps of regularly arranging multiple coloring points on the plane, and calculating coloring information of the coloring point as a constant in a predetermined function based on photo-image data photographed of the object illuminated by a light source and photography information of the photo-image data, and storing the calculated constants as a two-dimensional array corresponding to an arrangement of the coloring point.

Abstract: In outputting of image data, the image data is converted into color space data suitable for outputting means, and thereby a color reproducing capability of the outputting means is utilized. Thus, the image data is read, the image data is converted into first color space data, the image data is converted into second color space data, the first color space data is outputted to first outputting means, and the second color space data is outputted to second outputting means.

Abstract: When printing image data obtained by an input device, the present invention is intended to effectively utilize the color reproduction area of the printer. An image data processing method of the present invention comprises the steps of scale-down shifting a first color space point outside a maximum color reproduction area of an output unit to a second color space point within the maximum color reproduction area of the output unit; computing an amount of shift by which the first color space point is shifted to the second color space point; converting the second color space point to a third color space point within a color reproduction area smaller than the maximum color reproduction area of the output unit; and outputting an image to the output unit using image data obtained by scale-up shifting the third color space point to a fourth color space point within the maximum color reproduction area of the output unit based on the computed shift amount.

Abstract: An originally non-georeferenced raster map, which may have resulted from scanning and storing a non-georeferenced paper map, is georeferenced with reference to a georeferenced map, such as a vector map. Points denoting common features, such as road intersections, on each map are captured as point-pairs. When two point-pairs have been captured, a computer system calculates two functions, one converting the x,y coordinates of the raster map to the lat,lon coordinates of the vector map, the other converting lat,lon to x,y. Thereafter, the maps may be viewed simultaneously—top-and-bottom, side-by-side—or quasi-simultaneously, for example, toggling rapidly back and forth. The georeferencing functions are used by the system to effect manipulation of one map as the other map is manipulated. Thus, any manipulation of the vector map—scrolling, zooming, etc,—by a user is mimicked by the raster map.

Abstract: A method and system for providing a disc media photo album having a physical data structure including a video title set, a video object set for title containing at least one video object and a plurality of cells is provided in which the disc media is backward compatible. The physical data structure can include at least one picture unit for each cell. Each picture unit can have at least one video object unit containing a photo album picture to be displayed. Moreover, each picture unit can include additional multimedia data such as audio, video or subpicture information to be displayed with the photo album picture. In addition, a plurality of menus can be embedded within the data structure to permit direct user access to individual photo album pictures through the menus.

Abstract: A method, apparatus, and system for determining a true horizontal resolution of an analog video signal arranged to display a number of features having associated feature edges on a display each of which were created with a true pixel clock is described. For a test horizontal resolution, if it is determined that substantially all of the feature edges have substantially the same phase relationship to a test pixel clock, then the test horizontal resolution is the true horizontal resolution.

Abstract: The process allows a moving audience to view a film or digital projection without distortion caused by the angle of the audience relative to the projection screen. The skewing of the image to accommodate for the distortion resulting from the audience's angle to the screen is distinctly different from the alternative method of “squinching”, a two-dimensional pixel manipulation method. Skewing accomplishes the necessary visual compensation at the virtual set stage, rather than a post process of the filmed final image. The process covers audience motion not in a plane tangent to the earth's surface or fixed surfaces. Distorting the three-dimensional geometry before rendering results in superior image resolution to the two-dimensional pixel manipulation approach. In the manipulation approach, an image is rendered from the audience point of view and the resulting pixels are mapped into corresponding positions in the film image.

Abstract: A system is described for displaying images of a virtual three-dimensional book having one or more virtual pages. The system comprises a display system capable of executing a display program wherein images of the virtual three-dimensional book are produced on the display system. The display system may include a magnification function producing a virtual magnifier moveable over the virtual pages. The display system may also include a the “stretchy page” display method wherein one section of the page is directly magnified, while other adjacent sections may be directly magnified in a horizontal or vertical direction, but not both directions. Moreover, a virtual page may also be tilted about a central axis of the virtual page to accommodate viewing of a desired section on the display system. Finally, a computer program product comprising a computer usable medium having computer readable code embodied therein for producing images of a virtual three-dimensional book is also disclosed.

Abstract: An information display apparatus is able to easily read a large amount of information even on a compact-sized display unit by improving a display mode in the display unit. In displaying characters on a liquid crystal display panel used for an information display apparatus, characters, such as “w”, “i”, and “n”, are given different widths by amounts such as five dots, one dot, and four dots, respectively. Even with the above amount of dots, the characters are sufficiently legible. Accordingly, characters are displayed with only minimal widths required for identifying them, and furthermore, only a limited space is interposed within the characters. Further, in displaying English words, a word is not broken across two lines to begin a new line. A fixed display method is used when an amount of information to be displayed is not greater than the number of lines in one frame.

Abstract: An improved apparatus and method for scrolling through text contained in windows on a graphical user interface is disclosed. The invention determines whether the user is holding down a command button while the mouse pointer is either placed over the slider on a scroll bar or over one of the directional buttons. If the pointer is on the vertical slider, the invention ignores left and right mouse movements. If the pointer is on the horizontal slider, the invention ignores up and down mouse movements. If the pointer is on one of the four directional arrows, the invention ignores all mouse movements. The invention will continue along these guidelines until the command button is released. By performing these tasks, the invention eliminates the possibility that a user will inadvertently move the pointer off of the scroll bar or off of the directional buttons.

Abstract: A method and apparatus for lighting a display screen that comprises fully illuminating a relevant portion of the display screen, and using reduced illumination on a remaining portion of the display screen. As a result, power consumption is decreased compared to full lighting of the entire display screen.

Abstract: Timing information may be embedded along with other display control information in a signal using a pulse width modulation (PWM) mechanism to controllably drive a display (e.g., a plurality of display elements forming an array of display elements). In one embodiment, a non-uniform pulse interval clock may be generated from a uniform pulse interval clock in response to the timing information having pulse interval values. Using the non-uniform pulse interval clock, the width, and optionally the amplitude, of a drive signal may be modulated in order to controllably drive one or more display elements of an array of display elements. For example, while using video data with the non-uniform pulse interval clock to adjust the duration of the drive signal directed to each display element of the array of display elements, calibration data may be simultaneously used to adjust the magnitude of the drive signal.

Abstract: A method and apparatus for providing an improved interactive menu structure for an on-screen program guide within an interactive information distribution system. The menu structure is generated in service provider equipment and delivered to subscriber equipment as a digital video bitstream. The menu structure enables a viewer to view program schedules in an interactive manner with substantially no latency when switching from one program guide page to another. A mask and reveal technique is used to provide an interactive environment through which a viewer can identify programming, preview programming, launch multi-media programming for viewing, and cause other events within an information distribution system to occur.

Abstract: A video processing environment includes a user interface and processing shell from which various video processing ‘plug-in’ programs are accessed. The shell insulates the plug-ins from the intricacies of reading various file formats. The user interface allows an operator to load a video sequence, define and view one or more video objects on any one or more frames of the video sequence, edit existing video object segmentations, view video objects across a series of video frames, and encode video objects among a video sequence in a desired format. Various encoding parameters can be adjusted allowing the operator to view the video sequence encoded at the various parameter settings. The user interface includes a video window, a time-line window, a zoom window, a set of menus including a menu of plug-in programs, and a set of dialogue boxes, including encoding parameter dialogue boxes.

Abstract: The management of files, folders, and other data is facilitated. When a user inputs a character string (tag), which is desired to be retrieved, to a retrieval character input space and operates a retrieval button on a screen, retrieval is started, and a screen (file) corresponding to the input character string is displayed. This makes it possible for the user to fetch a desired file as required. That is, the user is able to manage and control files without using folders.

Abstract: A computer-user interface facilitates interaction between the user and the computer in a manner which enables the computer to assist the user in accomplishing desired goals. Based upon a particular task to be performed, the computer interviews the user to obtain the information pertinent to that particular task. Once the information is provided to the computer, it works with the user to automatically perform desired tasks in response to triggering events designated by the user. In addition, the computer can notify the user whenever a task is being carried out. Any executable function can be designated by the user as the object of a task. The initiation of this task can be carried out in response to any programmatically detectable event, or trigger, which is also designated by the user. As a further feature, the user has the ability to select from among a number of different types of notification to be provided whenever the task is being performed.

Abstract: A method for video editing software to display a preview of a video in real-time includes (a) retrieving one or more frames to be displayed at a current time into a system RAM of a computer; (b) applying one or more effects to the one or more frames to form a new frame; (c) displaying the new frame on a monitor without saving the new frame on a storage medium of the computer; and (d) repeating the actions (a) to (c) for subsequent times. The method may include reducing the resolution of the one or more frames after retrieving the one or more frames. The displaying of the new frame on a screen may include using a multimedia programming interface, such as DirectX, to copy the new frame in the system RAM to a RAM of a display card of the computer and using the multimedia programming interface to refresh the display card to display on a monitor the new frame.

Abstract: A moving image processing apparatus gives an ID to a video segment obtained by dividing moving image data, and stores information for associating a section of each video segment with the ID as video segment section information. Here, meta-data corresponding to each video segment is managed by associating the meta-data with the ID given to each video segment. In editing operations, editing in units of a video segment is performed, and an arrangement of video segment IDs is manipulated. Therefore, even if the editing is performed, there arises no inconsistency in referring to meta-data information so that it is equivalent to having the meta-data updated in synchronization with the moving image editing. Thus, it is possible to have virtual editing of the moving image automatically followed by an update of the meta-data and also alleviate a burden of reediting the meta-data of an editor.

Abstract: A method for transmitting a stream of multi-media content from provider server to a user device includes transmitting multi-media content from the provider server to the user device via a communication network and outputting the multi-media content from the user device to a user via an output on the user device such that the multi-media content is delivered from the provider server to the user in real-time. A degree of attention that the user directs to the output of the user device is continuously determined during the transmission and a parameter adjusting module at the provider server adjusts a parameter of the multi-media content in response to the degree of attention.

Abstract: A method and system for an active cell rendering engine, including a web server, a rendering engine, an application layer, and a data layer. The application layer includes cell applications. The data layer has data sources corresponding to the cell applications. One of the cell application is started pursuant to a request from the rendering engine, and returns formatted data, based on the data source in the data layer, to the rendering engine. The rendering engine, responsive to a copy request, provides a copy of one of the cell applications to the another page. The copied cell application includes a reference back to the page, so that modifications to the page appear in the copied cell application in a real-time fashion. Users can thus copy cells to pages, and construct pages utilizing copied cells, in order to keep real-time updated content in a cell on a page. The application layer and data layer can be provided in a configuration separate from the web server and rendering engine.

Abstract: Supplying relevant content to a media consumer includes analyzing a play list of media titles and a profile of the media consumer, and modifying the play list by inserting a reference to content into the play list, the content selected according to the media consumer profile and at least one of a first media title immediately preceding the reference to the content in the play list, and a second media title immediately following the reference to the content in the play list. Insertion of the relevant content may be accepted by the media consumer in return for value.

Abstract: An agent system (21) which provides information for a user, displaying a character, comprises at least: an agent program (22) provided in a user computer connectable to a communication channel network (2); a user information storage part (29) which stores user information; and a character display data storage part (32) which stores character display data for determining a display form of the character. The agent program (22) performs processing of collecting the user information and information selected by the user information, processing of creating a key word specific to the user based on the user information and the selected information, and processing of providing information, varying the display form related to the character from the selected information and the character display data, for every item of information.

Abstract: A method, system and program for tracking user availability are provided. Time estimates of a user availability are compiled for a separate user from among multiple users for participation in a messaging session. Then, the compiled time estimates of user availability are specified for output to at least one other user from among the multiple users, such that the at least one other user is enabled to track user availability for the separate user. In particular, compiled time estimates may be specified according to graphical, audio, video, or textual output preferences for the at least one other user. In addition, the compiled time estimates may be specified according to a current time zone for the at least one other user.

Abstract: A system and method are disclosed for accessing, generating, presenting and manipulating Internet and non-Internet related information, data and content, including information netcast over the Internet. The system is also capable of controlling operatively connected, privately networked devices. A number of graphical user interfaces are utilized to facilitate user access, manipulation and control of information, data and content and networked devices. Some of the graphical user interfaces are time and topic oriented, are customizable by the user, and allow for the manipulation of information, data, content and operatively connected networked devices from the graphical interfaces themselves. The system is preferably enhanced through the use of an intelligent, dynamically updated user profile that is fully integrated with the system.

Abstract: The invention relates to data structures for use with an environment based data driven test engine for computer programs which have a graphical user interface (GUI). The data structures are used in connection with a scriptable GUI test tool. The tool generates a GUI map (or includes a utility which generates a GUI map), at least one environment definition (parameter) file, at least one test data (driver) file, and an automated test engine. A separate environment definition file is provided for each feature of the GUI. Each environment definition file provides the abstract details required by the test engine in order to support common processes for different applications. The test data file is organized into rows of data where each row defines a single test and each column represents a parameter. The automated test engine is composed of a plurality of library modules written in the scripting language of the scriptable GUI test tool.

Abstract: A method, system and apparatus for managing a bookmark folder are provided. In an embodiment of the invention, when a user accesses a Web page using an embedded link from a displayed bookmarked Web page, the user may, if so desires, replace the bookmarked Web page by simply bookmarking the accessed Web page. The replacement is done automatically. In another embodiment of the invention, when a user wants to bookmark a Web page, the URL of the Web page is compared with the URLs of all bookmarked Web pages. If the URL of one of the bookmarked Web pages is similar with the URL of the Web page to be bookmarked, the user may, again if so desires, replace the bookmarked Web page by the bookmark of the new page. Similarity may be determined by user defined rules such as subject matter or differences in URL branches.

Abstract: A method of updating a route currently being executed by an animated state machine is disclosed. The animated state machine is associated with a graphical object and comprises a plurality of states each of which corresponds to a mode of rendering the graphical object. Each of the states has an associated state transition representing a transition of the graphical object between the states. The route comprises a first sequential plurality of the state transitions. The method removes any previously executed state transitions from the currently executing route and selects a second sequential plurality of remaining state transitions to represent a new route between a current state of the graphical object and a destination state.

Abstract: A document navigation system that facilitates efficient identification and display of a document by using navigation parameters is described. Using navigation parameters, users can easily scroll through documents from a single document window. Moreover, size information provides additional information regarding the association of stored documents with the currently displayed document. The method includes providing a document window for displaying all or a portion of one or more of the documents. The method provides a control item comprising a plurality of selectable time-based navigation parameters. Input commands setting the navigation parameters to define time-based document selection criteria are received. A closest-fit document having identification parameters that most closely correspond to the document selection criteria is identified. The method displays all or a portion of the closest-fit document in the document window.

Abstract: Systems and methods for providing a user with increased flexibility and control over the appearance and behavior of objects on a user interface are described. Sets of objects can be grouped into themes to provide a user with a distinct overall impression of the interface. These themes can be switched dynamically by switching pointers to drawing procedures or switching data being supplied to these procedures. To buffer applications from the switchable nature of graphical user interfaces according to the present invention, colors and patterns used to implement the interface objects are abstracted from the interface by, for example, pattern look-up tables.

Abstract: An image processing apparatus comprises: a boundary line designating unit which designates a boundary line for dividing a screen into a plurality of regions; and a region selecting unit which selects either one of the inside and the outside of the boundary line designated by the boundary line designator as a region to be processed in which an image is to be processed. The boundary line designating unit designates a region surrounded by a freehand line input via an inputting unit. As a result, it is possible to easily and accurately designate a region which a user desires to subject to an image processing, so as to readily subject the desired region to the image processing.

Abstract: In a computer system having a display device with a display surface, a portion of the display surface is reserved for an exclusive use by a program, to allow contents rendered by the program to be persistently visible. In one embodiment, the reservation is accomplished through reducing the width and height of a shared portion of the display surface managed by a window manager, corresponding to a graphics resolution. In one embodiment, the exclusive use is to render advertisements in the reserved portion by an advertising rendering program. The advertisements are HTML pages received from an advertisement web server through the Internet. The HTML pages are rendered in the reserved portion through a direct draw component. The direct draw component is provided with the unreduced width and height as the width and height of the surface area to support direct drawing of displays. A cursor control device driver also supports monitoring of movements of a cursor control device and of occurrences of cursor events.

Abstract: A switching system that incorporates a user interface allowing the operator to see all levels of a multi-level menu simultaneously is disclosed. In particular, the user interface includes a rotary knob, an alphanumeric display and one or more keypad switches or push-buttons. The alphanumeric display of the system includes one or more lines arranged one above the other, thereby allowing all levels of a menu to be simultaneously visible. In addition, the keypad switches are arranged so that each switch is associated with one line of the display.

Abstract: An information list generation apparatus and a program thereof visibly display important information in recorded information constantly in a high priority display position in a listing. That is, a server searches a message board database at a request of a member to display data on a message board, and edits display screen data of a groupware system based on the recorded data extracted in the search. Then, the server transmits the edited display screen data as a Web page to a client terminal. On the display of the message board, an article specified as a resident article is displayed in the highest priority display position in the display window regardless of the lapse of the recording date and time in the message board database. The resident article is followed by a predetermined number of normal articles having the latest recording dates and times.

Abstract: The present invention provides a system and method for disguising the depth of tree menus via popup options. In architecture, the system includes a display device that displays a top menu, and an input device to enable a user to select an option. A graphical user interface displays a second level menu on the display device in response to the option selection, and leaves a portion of the top menu visible to the user. The present invention can also be viewed as a method for disguising the depth of tree menus. The method operates by displaying a top menu on a display device and enabling a user to select an option. A second level menu is then displayed in response to the option selection, wherein the second level menu leaves a portion of the top menu visible to the user.

Abstract: A data processing system, which includes a processor and a memory, is equipped with a system resource monitor, executable by the processor and stored in the memory, that displays a multi-level tree structure in which each level includes a textual identification for a respective one of multiple features in the data processing system. The features are monitored by the system resource monitor for information regarding the status of the features. This information further indicates a normal status or a notification status. If the information indicates a notification status, the system resource monitor also displays a notification indicia. If the monitored status includes more than one attribute, the placeholder icon and notification indicia are displayed in a window adjacent to the tree structure.

Abstract: The present invention is directed to a system for and a method of enabling screen saver programs to establish a communications link to a remote server upon utilization. In addition, the present invention comprises, within the screen saver images, selectable portions, that when selected, connect the computer user to a corresponding internet site through a web server. This selection is typically performed through movement of a mouse or similar tracking device and selection of the selectable area.

Abstract: A laminating method of forming a pre-press proof (200) which comprises the steps of forming a lamination sandwich (210); placing lamination sandwich (210) at the entrance to a laminator (10) such that the lamination sandwich (210) passes through a nip portion (220) formed by a first lamination roller (120) and a second lamination roller (130) and, wherein at least one of the first lamination roller (120) or second lamination roller (130) comprises a substantially solid core (330), a first deformable layer (250) having a 60-80 durometer and surrounding the substantially solid core (330), and a second deformable layer (260) having a 20-60 durometer and surrounding the first deformable layer (250).

Abstract: A recording apparatus is equipped with a recorder for performing recording on a conveyed recording medium by discharging liquid from a discharge opening array, and comprises a conveyor for conveying the recording medium, and a recording medium floating prevention member for preventing floating of the recording medium, wherein the floating prevention member includes a floating prevention area between the recording medium and the recording means, only on an upstream side, in the conveyance direction of the recording medium, of the discharge opening array of the recorder used in non-margin recording of performing the recording throughout the width of the recording medium. Thus, collision of the recording medium and the recording head can be prevented in both margin recording and the non-margin recording, without lowering recording speed and deteriorating recording quality.

Abstract: An at least two-pass acoustic printing system uses an acoustic printhead having an array of ejectors arranged in rows and columns. Operation of each ejector is individually controllable. To minimize cross-talk errors a first selected ejector in a selected row is identified as an odd ejector of the selected row. Thereafter a first firing sequence of the first selected ejector is generated based on the first selected ejector being identified as odd. Then a second ejector, immediately adjacent the first ejector, is selected and is identified as an even ejector. Thereafter a second firing sequence is generated for the second selected ejector based on the selector being identified as even. The first and second firing sequences result in the first ejector and the second ejector being active during non-concurrent time periods. When a defective ejector of the array is detected, an operable ejector firing to the same substrate area is determined.

Abstract: This specification discloses an ink jet recording head in which discharge energy is imparted from a plurality of discharge energy generating elements formed on an element substrate and ink in an ink flow path is discharged from a nozzle, characterized in that a driving element for driving the discharge energy generating elements and also having the function as a temperature sensor and formed as a member discrete from the element substrate is mounted on the element substrate. The specification also discloses a recording apparatus having signal transmitting means for driving the ink jet recording head.

Abstract: The present invention provides an ink jet printing apparatus and method that can print a high-grade image without being affected by a variation in moving speed of a printing head. To accomplish this, an encoder is used which outputs a pulse each time a printing head and a printing medium are moved a specified amount relative to each other. Driving timings with which ink is ejected from the printing head are adjusted depending on the time interval between the pulses.

Abstract: The invention is to prevent problems due to the feeding of an OHT sheet for ink jet, such as damaging of the fixing device or deterioration of the image, as well as damaging of the fixing device due to the feeding of a sheet with a thickness exceeding a regular thickness, and to give related information to the user, so as to provide an image forming apparatus which reliability and usability of the image forming apparatus can be enhanced.

Abstract: Prompt ink-temperature control can be performed without increasing the capacity of a power supply. In an ink-jet recording apparatus performing recording by causing an ink-jet recording head for performing recording by discharging ink to perform scanning on a recording medium, the temperature of ink is raised to a predetermined temperature by applying a pulse so short as not to cause ink discharge to a discharge heater for discharging the ink, and using a sub-heater for heating the ink. Parameters (short-pulse conditions) of a short pulse to be applied to the discharge heater are changed in accordance with the states of operations of a carriage motor for causing the recording head to perform scanning, and a sheet feeding motor for conveying the recording medium.