JP2006072745A - Input processing unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input processing unit capable of improving operability more than conventional. <P>SOLUTION: An information reproduction unit 10 includes a CPU 13 for executing application programs, etc., and a mouse 19 as a pointing device. By inputting a position from the mouse 19, the CPU 13 determines an input angle by the mouse 19 on the basis of the position input from the mouse 19 at predetermined time intervals, and executes video frame feeding forward or backward with the number of frames corresponding to the determined input angle by the mouse 19. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an input processing apparatus that executes a process according to an input by a pointing device.

A conventional input processing device displays a graphical user interface (hereinafter referred to as “GUI”) with buttons corresponding to processing such as frame advance, frame reverse, and fast forward of video information and audio information, and is moved by a pointing device. When the clickable button on the pointing device is pressed when a possible cursor is positioned on a button that supports frame advance, frame reverse, fast forward, etc., the frame advance, frame reverse, fast forward, etc. processing is executed. (For example, refer to Patent Document 1).
JP 2002-247504 A (6th page, FIG. 12)

  However, in the conventional input processing apparatus, when performing frame-by-frame playback of video information and audio information, it is necessary to select a button with a pointing device as many times as the number of frames in frame-by-frame advance, which is very complicated. There was a problem.

  The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide an input processing apparatus that can improve the operability as compared with the prior art.

  An input processing apparatus according to the present invention includes a position input unit that inputs a position from a pointing device, and an input angle determination that determines an input angle by the pointing device based on the position that is input by the position input unit at predetermined time intervals. And a process execution means for executing a process associated with the input angle determined by the input angle determination means.

  With this configuration, the input processing apparatus according to the present invention can execute processing according to the input angle by the pointing device, so that operability can be improved as compared with the prior art.

  The input processing apparatus according to the present invention includes a state display unit that displays an input state by the pointing device based on the input angle determined by the input angle determination unit.

  With this configuration, the input processing device of the present invention can make the user visually recognize the input state by the pointing device, so that the operability compared to the case where the user cannot visually recognize the input state by the pointing device. Can be improved.

  Moreover, the input processing device of the present invention has a configuration in which the input angle determining means determines the input angle based on at least three positions input by the position input means.

  With this configuration, the input processing device of the present invention can improve the degree of freedom of the position that can be used for determining the input angle, so that the operability can be further improved.

  Further, the input processing device of the present invention includes association changing means for changing the association between the input angle and the processing, and the processing is at least one of frame advance and frame return of information, and the input angle is , And a frame number corresponding to at least one of the frame advance and the frame return.

  With this configuration, the input processing device of the present invention can allow the user to change the number of frames in at least one of frame advance and frame return associated with the input angle, so that operability can be further improved. .

  In the input processing apparatus of the present invention, the processing is reproduction of an MPEG video, and the status display means indicates that the frame being reproduced by the processing execution means is an I frame, a B frame, or a P frame. Whether or not there is an input state is displayed with the same graphic.

  With this configuration, the input processing apparatus of the present invention can make the user recognize whether the frame being operated is an I frame, a B frame, or a P frame, together with the input state by the pointing device.

  The input processing program of the present invention includes a position input unit that inputs a position from a pointing device, and an input that determines an input angle by the pointing device based on the position that is input by the position input unit at predetermined time intervals. The computer functions as an angle determination unit and a process execution unit that executes a process associated with the input angle determined by the input angle determination unit.

  With this configuration, the input processing program according to the present invention can cause the computer to execute processing according to the input angle by the pointing device, so that the operability of the computer can be improved as compared with the conventional case.

  The present invention can provide an input processing device capable of improving the operability as compared with the prior art.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the input processing device according to the present embodiment will be described.

  As shown in FIG. 1, an information reproducing apparatus 10 as an input processing apparatus according to the present embodiment stores programs such as an operating system (hereinafter referred to as “OS”) and application programs, and graphic data for display used in the GUI. A stored hard disk storage device (hereinafter referred to as “HDD”) 11, a ROM (Read Only Memory) 12 storing a part of the OS and the like, system control according to the OS stored in the HDD 11 or ROM 12, and storage in the HDD 11 A CPU (Central Processing Unit) 13 that executes the application program, and a RAM (Ran) that stores input / output data for the CPU 13 such as a program read from the HDD 11 for execution by the CPU 13 and data calculated by the CPU 13 An input / output interface (I / O) for transmitting / receiving information to / from another computer connected via a LAN (local area network) or the like. The om Access Memory (om Access Memory) 14, the CRT (Cathode Ray Tube) 15 that displays information, and the like. O) 16, a CD / DVD drive 17 for reading various information from a CD or DVD by loading a CD (Compact Disc) or DVD (Digital Versatile Disc), and a keyboard 18 for inputting character information, an operation instruction to the CPU 13, etc. And a mouse 19 as a pointing device for inputting operation commands, characters, numerical values, etc. related to the information displayed at the designated position by designating a specific position on the display screen of the CRT 15. It is constituted by a computer. Note that the input processing program for GUI is included in the OS and application programs.

  Here, the CPU 13 inputs a position from the mouse 19 and constitutes a position input means. Further, the CPU 13 determines an input angle by the mouse 19 based on a position input from the mouse 19 at predetermined time intervals, and constitutes an input angle determination means. Further, for example, the CPU 13 executes a process of frame advance or frame return of an MPEG (Motion Picture Experts Group) image based on the determined input angle, and constitutes a process execution means. The CPU 13 changes the number of frames for frame advance or frame return associated with the input angle by the mouse 19 and constitutes an association changing means.

  The CRT 15 displays the input state by the mouse 19 based on the input angle by the mouse 19 determined by the CPU 13, and constitutes a state display means.

  Next, the operation of the information reproducing apparatus 10 will be described.

  When the CPU 13 starts executing the GUI input processing program, the jog mode flag on the RAM 14 for storing whether the jog mode is on or off as shown in FIG. 2 is set to off. It is then determined whether there is an input from the mouse 19 (S22).

  When determining in S22 that there is no input from the mouse 19, the CPU 13 displays the initial figure shown in FIG. 3A on the display screen of the CRT 15 (S23), and returns to the process of S21.

  It should be noted that the CPU 13 executes the GUI input processing program at any time when the cursor of the mouse 19 is rotated by one turn, and the number of frames for frame advance or frame return (hereinafter referred to as “number of frames per turn”). ) Is input from the keyboard 18 by the user, the number of frames per rotation input from the keyboard 18 is stored in the HDD 11 and displayed in the area 31 shown in FIG. 3 on the display screen of the CRT 15. Here, in FIG. 3, 12 is displayed as the number of frames per rotation in area 31, but when a value other than 12 is set by the user as the number of frames per rotation, it is set by the user. A numerical value is displayed as the number of frames per round.

  When determining in S22 that there is an input from the mouse 19, the CPU 13 determines whether or not the jog mode is in the on state based on the jog mode flag on the RAM 14 (S24).

  When the CPU 13 determines that the jog mode is in the off state in S24, the CPU 13 determines whether or not the cursor of the mouse 19 is in the area 32 shown in FIG. 3A on the display screen of the CRT 15 (S25). If it is determined in S25 that the cursor is within 32, it is determined whether or not the button of the mouse 19 has been clicked (S26).

  When the CPU 13 determines in S26 that the button of the mouse 19 has been clicked, the CPU 13 sets the jog mode flag on the RAM 14 to ON (S27), and displays a graphic representing the start of the jog mode as shown in FIG. The information is displayed on the display screen of the CRT 15 (S28), and the process returns to S22. Note that the color of the region 33a in the region 33 shown in FIG. 3 is changed between when the jog mode is on and when it is off.

  When the CPU 13 determines in S25 that there is no cursor in the area 32, or when it determines in S26 that the mouse 19 button has not been clicked, the initial state graphic shown in FIG. The information is displayed on the display screen (S23), and the process returns to S21.

  If the CPU 13 determines that the jog mode is on in S24, the CPU 13 determines whether or not the button of the mouse 19 has been clicked (S29).

  When the CPU 13 determines in S29 that the button of the mouse 19 has been clicked, the initial state graphic shown in FIG. 3A is displayed on the display screen of the CRT 15 (S23), and the process returns to S21.

  On the other hand, when the CPU 13 determines in S29 that the button of the mouse 19 has not been clicked, after executing a frame number determination subroutine for determining the number of frames for video frame advance or frame reverse (S30), for example, FIG. As shown in c), the figure in the area 33 is rotated and displayed on the display screen of the CRT 15 corresponding to the number of frames determined in S30 (S28), and the process returns to S22. Note that the rotation angle of the figure in the area 33 corresponding to one frame is an angle obtained by dividing 360 ° by the number of one-round frames stored in the HDD 11.

  Here, the frame number determination subroutine in S30 will be described in detail.

  As shown in FIG. 4, the CPU 13 reads out from the HDD 11 data (hereinafter referred to as “frame number calculation data”) used for calculation for determining the number of frames for frame advance or frame return. (S41).

  Here, the frame count calculation data includes the cursor position two periods before (hereinafter referred to as “previous position”), the cursor position one period before (hereinafter referred to as “previous position”), the previous position and the previous position. It consists of the slope of the straight line (hereinafter referred to as “previous slope”). For example, as shown in FIG. 5, when the cursor of the mouse 19 is moved at predetermined time intervals in the order of point 61, point 62, and point 63 and is currently at point 63, the frame number calculation data is , The coordinates of the point 61 that is the previous position, the coordinates of the point 62 that is the previous position, and the inclination of the straight line 64 that is the previous inclination passing through the points 61 and 62.

  After executing S41, the CPU 13 determines whether or not the position has been set two times before (S42).

  When the CPU 13 determines in S42 that the previous position is not set, the CPU 11 stores the same position as the current cursor position (hereinafter referred to as “current position”) in the HDD 11 as the previous position (S43), and determines the number of frames. Exit the subroutine. When the jog mode is changed from the off state to the on state and the frame number determination subroutine is executed for the first time, the position before the previous time and the previous position are not set.

  On the other hand, when the CPU 13 determines in S42 that the previous position has been set, it determines whether or not the previous position has been set (S44).

  Then, when determining in S44 that the previous position is not set, the CPU 13 stores the same position as the previous position in the HDD 11 as the previous position (S45), and based on the previous position stored in the HDD 11 and the current position. Then, the inclination of the straight line passing through the previous position and the current position (hereinafter referred to as “current inclination”) is obtained (S46). For example, as illustrated in FIG. 5, the CPU 13 determines the inclination of the straight line 65 that is the current inclination passing through the point 62 and the point 63 based on the coordinates of the point 62 that is the previous position and the coordinates of the point 63 that is the current position. Ask for.

  After the execution of S46, the CPU 13 stores the previous position stored in the HDD 11 in S45, the current position, and the current inclination obtained in S46 in the HDD 11 as a new previous position, a previous position, and a previous inclination, respectively (S47). ), The frame number determination subroutine is terminated.

  Further, when the CPU 13 determines in S44 that the previous position has been set, the CPU 13 determines the center position of the circumscribed circle passing through these three positions based on the previous-last position, the previous position, and the current position stored in the HDD 11. Obtain (S48). For example, as shown in FIG. 5, the CPU 13 passes through these three points based on the coordinates of the point 61 that is the previous position, the coordinates of the point 62 that is the previous position, and the coordinates of the point 63 that is the current position. A center position 67 of the circumscribed circle 66 is obtained.

  After executing S48, the CPU 13 passes through the center position and the previous position of the circumscribed circle based on the three positions including the previous position stored in the HDD 11, the current position, and the center position of the circumscribed circle determined in S48. An angle formed by the straight line and the straight line passing through the center position of the circumscribed circle and the current position is obtained (S49). For example, as shown in FIG. 5, the CPU 13 makes a straight line passing through the center position 67 and the point 62 based on the coordinates of the point 62 that is the previous position, the coordinates of the point 63 that is the current position, and the center position 67 of the circumscribed circle 66. An angle 71 formed by 69 and a straight line 70 passing through the center position 67 and the point 63 is obtained.

  Next, the CPU 13 obtains the number of frames according to “Equation 1” based on the number of frames per rotation read from the HDD 11 in S41 and the angle obtained in S49 (S50). In “Equation 1”, the number of frames per rotation read from the HDD 11 in S41 is X, and the angle obtained in S49 is Q. In [Formula 1], [] is a Gaussian symbol.

  Next, the CPU 13 determines whether or not the number of frames obtained in S50 is greater than 0 (S51). When the CPU 13 determines in S51 that the number of frames obtained in S50 is 0, the frame number determination subroutine is terminated. On the other hand, when the CPU 13 determines in S51 that the number of frames obtained in S50 is greater than 0, the CPU 13 obtains the current inclination based on the previous position and the current position stored in the HDD 11 (S52), and the current time obtained in S52. It is determined whether or not the inclination is smaller than the previous inclination read from the HDD 11 in S41 (S53).

  When the CPU 13 determines in S53 that the current inclination is smaller than the previous inclination, does the CPU 13 satisfy all three conditions that the current inclination is smaller than 0, the previous inclination is larger than 0, and the absolute value of the current inclination is larger than 1? It is determined whether or not (S54). When the CPU 13 determines in S53 that the current inclination is not smaller than the previous inclination, the current inclination is larger than 0, the previous inclination is smaller than 0, and the absolute value of the current inclination is smaller than 1. Whether or not (S55).

  If the CPU 13 does not satisfy at least one of the three conditions that the current inclination is smaller than 0, the previous inclination is larger than 0, and the absolute value of the current inclination is larger than 1 as in the situation 1 shown in FIG. When it is determined in S55 that all the three conditions, that is, the current inclination is larger than 0, the previous inclination is smaller than 0, and the absolute value of the current inclination is smaller than 1 are satisfied as in the situation 2 shown in FIG. Then, frame advance is determined (S56), and the previous position read from the HDD 11 in S41, the current position, and the current inclination obtained in S52 are stored in the HDD 11 as the new previous position, the previous position, and the previous inclination, respectively ( S47), the frame number determination subroutine is terminated.

  Further, the CPU 13 must satisfy at least one of the three conditions that the current inclination is larger than 0, the previous inclination is smaller than 0, and the absolute value of the current inclination is smaller than 1 as in the situation 3 shown in FIG. When it is determined in S55, it is determined in S54 that all three conditions of the current inclination being smaller than 0, the previous inclination being larger than 0, and the absolute value of the current inclination being larger than 1 are satisfied as in the situation 4 shown in FIG. When this is done, frame return is determined (S57), and the previous position read from the HDD 11 in S41, the current position, and the current inclination obtained in S52 are stored in the HDD 11 as new previous position, previous position, and previous inclination, respectively. (S47), and the frame number determination subroutine is terminated.

  As described above, the information reproducing apparatus 10 can execute frame advance or frame return with the number of frames corresponding to the input angle by the mouse 19, so that the operability can be improved as compared with the related art.

  Further, when the jog mode is on, the information reproducing apparatus 10 does not require a click operation of the mouse 19 for a frame advance or frame return operation with the mouse 19, and therefore uses the frame advance or frame return operation with the mouse 19. Can be easily performed by a person.

  Further, when the jog mode is on, the information reproducing apparatus 10 updates the graphic shown in FIG. 3 every time the CPU 13 detects the movement of the cursor. Can be visually recognized. Therefore, the information reproducing apparatus 10 can improve the operability compared to the case where the user cannot visually recognize the frame advance or frame return input state by the mouse 19.

  Further, in the information reproducing apparatus 10, since the CPU 13 determines the input angle based on the three positions of the last time position, the previous position, and the current position, the degree of freedom of the position that can be used to determine the input angle can be improved. The operability can be further improved. That is, when the jog mode is on, the information reproducing apparatus 10 can allow the user to use not only the area 32 shown in FIG. 3 but also the entire display screen of the CRT 15 as a range for determining the input angle. . Therefore, for example, as a result of simultaneously displaying the playback video and the area 32 on the display screen of the CRT 15, the information reproducing apparatus 10 moves the cursor accurately on the area 32 because the area 32 is small as the moving area of the cursor. Even if it is difficult for the user, the input angle can be determined by moving the cursor on the entire display screen of the CRT 15, so that the user can easily perform frame advance or frame return operation with the mouse 19. Can be made.

  In addition, the information reproducing apparatus 10 can allow the user to change the number of frames for frame advance or frame return corresponding to the input angle by the mouse 19 by setting the number of frames per rotation, so that the operability is further improved. be able to.

  Further, the information reproducing apparatus 10 is provided with a structure for receiving header information from the decoder, so that the MPEG frame being reproduced is an I frame, a B frame, or a P frame, and an input state by the mouse 19. May be displayed by the graphic shown in FIG. For example, the information reproducing apparatus 10 may display whether an MPEG frame being reproduced is an I frame, a B frame, or a P frame by the color of the graphic shown in FIG. The information reproducing apparatus 10 displays whether the MPEG frame being reproduced is an I frame, a B frame, or a P frame, and the input state by the mouse 19 by the graphic shown in FIG. In this case, the user can be made aware of whether the frame being operated is an I frame, a B frame, or a P frame together with the input state by the mouse 19.

  The information reproducing apparatus 10 performs frame advance or frame return according to the input angle with the mouse 19, but performs operations other than frame advance or frame return according to the input angle with the mouse 19. It may be like this. For example, the information reproducing apparatus 10 may be configured to perform a still operation according to an input angle with the mouse 19.

  In addition, the information reproducing apparatus 10 is configured to display an input state by the mouse 19 by a change in the shape and color of the graphic in the region 33 shown in FIG. 3, but the shape of the graphic in the region 33 shown in FIG. The input state by the mouse 19 may be displayed by a change in the shape of the figure other than a change in color or a change in color.

  In addition, the information reproducing apparatus 10 reproduces MPEG video, but may reproduce information other than MPEG.

  As described above, the input processing apparatus according to the present invention has an effect that the operability can be improved as compared with the prior art, and is useful as an information reproducing apparatus or the like that can perform variable speed reproduction operation of video information and audio information by a pointing device. It is.

The block diagram of the system configuration | structure of the information reproduction apparatus in one embodiment of this invention FIG. 1 is a flowchart of a GUI input processing program of the information reproducing apparatus shown in FIG. (A) An explanatory view showing an initial state of a graphic displayed on the CRT of the information reproducing apparatus shown in FIG. 1 (b) A state at the start of the jog mode of the graphic displayed on the CRT of the information reproducing apparatus shown in FIG. (C) Explanatory drawing which shows an example in the state in jog mode of the figure displayed on CRT of the information reproducing apparatus shown in FIG. Flow chart of the frame number determination subroutine of the input processing program shown in FIG. The figure which shows an example of operation with the mouse | mouth of the information reproduction apparatus shown in FIG. The figure which shows the relationship between the operation condition by the mouse | mouth in the information reproduction apparatus shown in FIG. 1, and the determination result by CPU.

Explanation of symbols

10 Information playback device (input processing device)
13 CPU (position input means, input angle determination means, process execution means, association change means)
15 CRT (status display means)
19 Mouse (pointing device)

Claims (6)

Position input means for inputting a position from a pointing device; input angle determination means for determining an input angle by the pointing device based on the position input at predetermined time intervals by the position input means; and the input angle determination means An input processing apparatus comprising: a process execution unit that executes a process associated with the input angle determined by the step. The input processing apparatus according to claim 1, further comprising a state display unit that displays an input state of the pointing device based on the input angle determined by the input angle determination unit. The input processing apparatus according to claim 1, wherein the input angle determination unit determines the input angle based on at least three positions input by the position input unit. An association changing means for changing the association between the input angle and the process;
The process is at least one of frame advance and frame return of information,
The input processing apparatus according to claim 1, wherein the input angle is associated with the number of frames of at least one of the frame advance and the frame return. The processing is reproduction of MPEG video,
The status display means displays whether the frame being reproduced by the processing execution means is an I frame, a B frame, or a P frame, and the input status by the same graphic. The input processing device according to claim 2. Position input means for inputting a position from a pointing device; input angle determination means for determining an input angle by the pointing device based on the position input at predetermined time intervals by the position input means; and the input angle determination means An input processing program for causing a computer to function as a process execution means for executing a process associated with the input angle determined by.

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