WO2004105388A1

WO2004105388A1 - Imageprocessing device and image processing method

Info

Publication number: WO2004105388A1
Application number: PCT/JP2004/007234
Authority: WO
Inventors: Shinichiro Miyazaki
Original assignee: Sony Corporation
Priority date: 2003-05-21
Filing date: 2004-05-20
Publication date: 2004-12-02
Also published as: JP2004349949A

Abstract

An image processing device and an image processing method which can display smoothly moving characters along with still images with a simple processing in an index display mode. A control unit (172) controls a memory controller (192) to store additional information read from an additional information memory (173) in an additional information storing region of a display image memory (174), and directly overwrites additional information stored in the additional information storing region into an index image-use still image storing region. Since additional information is overwritten on a still image in the index image-use still image storing region after the overwriting, additional information is overwritten on still images in the index image-use still image storing region read by being moved one line or several lines at a time when the user performs a scroll operation to allow additional information such as a channel number to be smoothly moved for displaying along with respective still images displayed by scrolling. This invention is applicable to TV receivers.

Description

Specification

Image processing apparatus and image processing method

The present invention relates to an image processing apparatus and an image processing method, and in particular, moves or enlarges (adjusts the size of) information added to a displayed image, and smoothly moves or enlarges the information. The present invention relates to an image processing device and an image processing method capable of displaying a reduced image. Background art

FIG. 1 is a diagram showing an external configuration of a conventional television receiver 1.

The television receiver 1 is provided with a display unit 12 constituted by, for example, a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display). The user performs an operation input using the remote commander 2, and the remote commander 2 transmits a signal indicating the user's operation input to the television receiver 1 by infrared rays. In the television receiver 1, when the infrared receiver 11 receives the signal transmitted by the remote commander 2, the broadcast of the channel selected by the user is displayed on the display 12 by the display method specified by the user. Can be displayed.

In such a television receiver, there is a technique for displaying images of a plurality of different channels on one display screen (for example, a technique described in Japanese Patent No. 3082216).

According to the technique described in Japanese Patent No. 3082222, the selected channel is learned, the learning result is stored as priority data, and when a plurality of video display operations are performed, The stored priority data is read out, and images of different channels are displayed on a plurality of display areas configured by dividing one display screen in accordance with the priority data. Therefore, the user can quickly find the channel broadcasting the desired program, and the usability is improved. I have.

As an example of displaying images of a plurality of different channels on one display screen, a program being viewed is displayed on a main screen, and so-called counter-programs other than the program are sequentially displayed on a sub-screen, and a desired screen is displayed. There is an index display that allows you to check whether the program is being broadcast as a counterprogram. For example, as shown in FIGS. 2 and 3, the display screen of the display unit 12 for executing the index display includes a main image display area 21 for displaying a main image, and a broadcast on a plurality of channels. Scroll index display area that displays a part of the still images of the back program, and allows the user to input an operation to scroll through the displayed still images and display the still image of the desired channel 2 2 And can be composed of

In FIG. 2, a still image corresponding to channel # 4, channel 6, channel 8, and channel 10 is displayed in scroll index display area 22. In this state, if the user performs a scroll operation using the remote commander 2 to view the screen displayed at the bottom of the scroll index display area 22, the scroll index display area 22 shown in FIG. As shown in Fig. 3, part of the still image corresponding to channel 4 displayed at the top of the screen is out of the scroll index display area 22 and the channel 1 is displayed at the bottom of the scroll index display area 22. Part of the still image corresponding to 2 is displayed.

As described above, in the scroll index display area 22, the still image is continuously scrolled up and down according to the user's operation input, and the still image of the channel not currently displayed can be displayed. At this time, in order to notify the user which still image displayed in the scroll index display area 22 is a still image corresponding to a program being broadcast on which channel, each still image is displayed. Characters indicating the channel number of the corresponding program must be inserted in the image. However, since the still image in the scroll index display area 22 moves continuously, it is difficult to insert a normal OSD (On Screen Display). If the channel number is entered after image processing as described above, it is necessary to change the entry position of the channel number for each frame, which is displayed in the scroll index display area 22 It was very difficult to smoothly move the display position of the character indicating the channel number in conjunction with the movement of the still image.

FIG. 4 shows a conventional television receiver 1 having a scroll index display function, in which a channel number can be smoothly moved together with a still image displayed by being scrolled. FIG. 3 is a block diagram showing a configuration. The system controller 41 receives, for example, the tuner 43-1 or the tuner 43-2 based on the signal received by the infrared receiving unit 11 and indicating the operation input performed by the user using the remote commander 2. It controls the selection of a broadcast and the processing executed by the image processing unit 45.

The tuner 43-1, based on the control of the system controller 41, transmits a broadcast wave of a channel designated as a channel to be displayed on the main screen such as the main image display area 21 via the antenna 42-1. Receives and supplies to Y / C separation and chroma decoding unit 44-1. Under the control of the system controller 41, the tuner 43-2 receives the broadcast wave of the channel designated as the channel to be displayed on the sub screen such as the scroll index display area 22 via the antenna 42-2. And supplies it to the Y / C separation and chroma decoding unit 44_2. In the display mode with only one sub-screen, such as two-screen display, the tuner 4 3-2 receives only the broadcast wave of the channel specified as the sub-screen. , The broadcast waves of all the channels that may be displayed in the scroll index display area 22 are sequentially received.

The video signal supplied to the YZC separation and chroma decoding section 44-1 or the Y / C separation and chroma decoding section 44-1 is supplied with the hue (phase angle) and saturation (subcarrier that transmits color). It consists of a chroma signal (c) composed of, and a bright S signal (Y). Υ / C separation and chroma decoding unit 4 4 1 1 and YZ C separation and coupling The ma-decoding unit 44-12 separates the chroma signal from the supplied video signal and the luminance signal, decodes the separated chroma signal, and outputs the luminance signal (Y), color signal (U), and color signal. (V), and supplies it to the image processing unit 54.

The image processing unit 45 executes a process of converting or synthesizing the supplied image data into image data corresponding to the image displayed on the display unit 12 under the control of the system controller 41. FIG. 5 is a block diagram showing a detailed configuration of the image processing unit 45 in FIG.

The AD converter 61-1 receives the supply of analog component signals from the Y / C separation and chroma decoding unit 44-1, converts it into a digital signal, and performs the main image data enlargement / reduction processing unit of the screen division processing unit 62. 9 1 to supply. The control unit 63 includes a screen division processing unit 62, a high-speed switch IC 65, and an OSD processing microcomputer 64 (hereinafter, referred to as an OSD microcomputer 64) based on a control signal supplied from the controller 41. ) And controls the operation of OSD69.

The OSD microcomputer 64, based on the control of the control unit 63, displays RGB character information and first character information as information corresponding to the channel number displayed on the still image of the scroll index and moved with the still image during scrolling. Generates a blanking signal (Y s) and supplies it to the high-speed switch IC 65. The high-speed switch IC 65 receives an analog component signal from the YZC separation and chroma decoding section 4412 and, based on the control of the control section 63, converts a part of the supplied analog component signal. The OSD microcomputer 64 executes processing for combining with the generated RGB character information and the first blanking signal (Y s). In other words, the high-speed switch IC 65 executes a process of replacing the pixel corresponding to the character part of the channel number in the supplied analog component signal with the information supplied from the OSD microcomputer 64.

The AD converter 61-2 receives the analog component signal with the channel number superimposed from the high-speed switch IC 65 and converts it into a digital signal. It is supplied to the sub-image data enlargement / reduction processing section 92 of the screen division processing section 62.

The main image data enlargement / reduction processing section 91 of the screen division processing section 62, based on the control of the control section 63, controls the size of the display image based on the supplied digital signal in the display mode instructed by the user. A process for changing the size according to the size of the main screen is executed and output to the screen synthesizing section 96 or supplied to the memory controller 95 via the memory bus 93 and stored in the memory 66.

The sub-image data enlargement / reduction processing unit 92 of the screen division processing unit 62 displays the size of the display image based on the supplied digital signal based on the control of the control unit 63 in accordance with the instruction given by the user. Executes the process of changing according to the size of the sub-screen in the mode and outputs it to the screen synthesizing unit 96, or supplies it to the still image extracting unit 94 via the memory bus 93, or The data is supplied to the memory controller 95 via 93 and stored in the memory 66. When the scroll index display mode is instructed, the sub-image data enlargement / reduction processing unit 92 converts the image data of all the channels that may be displayed in the scroll index display area 22 into one. Since the images are supplied sequentially, the size of the display screen is changed according to the size of the sub-screen, and the output process is sequentially performed on the supplied image data.

The still image extracting unit 94 obtains the image data that has been subjected to the scaling processing by the sub-image data scaling unit 92 via the memory bus 93, and obtains one frame every predetermined time (ie, The still image is extracted and supplied to the screen synthesizing unit 96 or to the memory controller 95 via the memory bus 93 and stored in the memory 66.

The memory controller 95 stores the supplied image data in a predetermined area of the memory 66, reads out the image data stored in the memory 66, and outputs the read image data to the screen composition unit 96. Execute

FIG. 6 shows a memory map of the memory 66.

The memory 66 has a main video signal storage area 101, a sub video signal storage area 102, and a plurality of index picture still image storage areas 103. Have been. In the index display mode, an area in which image data is being read from the index screen still image storage area 103 is referred to as a read area 104.

For example, as shown in FIG. 6A, of the still image storage area 103 for the index screen, the still image storage area 103-3-1 for the index screen to the still image storage area 103-3-4 for the index screen are stored. When read, still images corresponding to channel 4, channel 6, channel 8, and channel 10 are displayed in the scronole index display area 22 as described with reference to FIG. And In this state, when the user performs a scroll operation using the remote commander 2 to view the screen displayed at the bottom of the scroll index display area 22, the position of the data to be read is one line, Or, as shown in Fig. 6B, the reading area 104 is displaced by several lines, and the index screen still image storage area 104-3—from the middle of the index screen still image storage area 104 Data is read up to the middle of storage area 103-3-5. Accordingly, a part of the still image corresponding to the channel 4 displayed at the top of the scroll index display area 22 in FIG. 2 deviates from the scroll index display area 22 and As shown in FIG. 3, a part of the still image corresponding to channel 12 is displayed below scroll index display area 22. At this time, each still image in the index image still image storage area 103 to be read already contains the information corresponding to the channel number by the processing of the OSD microcomputer 64 and the high-speed switch IC 65. Therefore, the channel numbers are smoothly moved and displayed along with each still image that is scrolled and displayed.

Returning to the description of the image processing unit 45 in FIG.

The screen synthesizing unit 96 includes the image data supplied from the memory controller 95 via the memory bus 93, or the main image data enlarging / reducing processing unit 91, the sub image data enlarging / reducing processing unit 92, or The image data supplied from the still image extraction unit 94 Under the control of the control unit 63 based on the display mode specified by the user, and supplies the synthesized image data to the image quality adjustment unit 67.

The image quality adjustment unit 67 adjusts the image quality of the supplied composite image, and supplies the image to the composite unit 68. The OSD 69 outputs information to be superimposed on the display image to the OSD synthesis unit 68 under the control of the control unit 63. The 0.30 combining unit 68 combines the superimposition information output by the OSD 69 with the supplied image data and outputs the combined information.

Returning to the description of the television receiver 1 in FIG.

The image data processed by the image processing unit 45 is displayed on the display unit 12 for display such as an LCD (Liquid Crystal Display) or a PDP (plasma display panel), so that digital data can be displayed. In such a case, the data is directly output to the display unit 12 so that the display unit 12 can display analog data using, for example, a CRT (Cathode Ray Tube). If so, the data is output to the DA converter 46, converted to an analog signal, and then output to the display unit 12. The display unit 12 displays an image corresponding to the supplied image data.

As described above, in order to smoothly move the display position of the character indicating the channel number in conjunction with the movement of the scroll index display area 22, the OSD microcomputer 64 and the high-speed switch IC 65 are required. This was necessary, and was a factor in increasing costs.

Furthermore, the television receiver 1 described with reference to FIG. 4 receives only analog broadcast waves. However, with the generalization of digital terrestrial and satellite broadcasts, the television receiver 1 will be used in the future. Receivers will need to be able to receive not only analog broadcasts but also digital broadcasts. In a television receiver capable of receiving and displaying a digital broadcast, the display position of the character indicating the channel number is smoothly moved in accordance with the movement of the scroll index display area 22 in the manner described above. To achieve this, once the digital image data is converted to analog component signals, the OSD microcomputer 64 and the high-speed switch IC 6 After adding the information corresponding to the channel number to the analog component signal by using 5, it is necessary to convert it to a digital signal again and perform image processing. In this case, since the number of conversions of the image signal increases, a problem of image deterioration occurs. Disclosure of the invention

The present invention has been made in view of such a situation, and does not perform complicated processing such as that performed by the OSD microcomputer 64 and the high-speed switch IC 65 described above, and by repeating the conversion processing. In addition, the additional information corresponding to the image is smoothly moved and displayed following the movement of the image without deteriorating the image.

A first image processing device of the present invention includes: first storage means for storing information about an image to be displayed; and control means for controlling writing and reading of information to and from the first storage means. The first storage means has a first image storage area for storing image information corresponding to an image to be moved or scaled and displayed, and the control means includes an image to be moved or scaled and displayed. It is characterized in that the additional information added and displayed above is overwritten on a part of the image information stored in the first image storage area.

The first storage means may further include an additional information storage area for storing additional information, and the control means stores the additional information stored in the additional information storage area in the first image storage area. It is possible to overwrite a part of the stored image information.

The information processing apparatus may further include second storage means for storing the additional information, wherein the control means stores the additional information stored in the second storage means in a first image storage area. Overwrites some of the image information.

A plurality of still images can be stored in the first image storage area, The control means may cause the additional information to overwrite a part of each of the plurality of still images stored in the first image storage area.

In the first image storage area, continuous frame image data can be sequentially stored, and the control means includes information on the blanking interval of the frame image data in the first storage means. During the writing process, additional information can be overwritten on a part of each frame image data.

The first storage means is further provided with a second image storage area for storing image information displayed in a display method different from the image information stored in the first image storage area. be able to.

Information about the image is stored, the writing and reading of the information are controlled, and the additional information that is added and displayed on the moving or scaled image is added to the moved or scaled image. It is overwritten on a part of the corresponding image information.

A first image processing method according to the present invention includes a storage step of storing image information corresponding to an image displayed by being moved or enlarged or reduced in an information storage area; An overwriting step of overwriting a part of the image information stored in the information storage area by the additional information to be added and displayed.

Image information corresponding to the image that is moved or enlarged or reduced is stored in the information storage area, and additional information that is added and displayed on the image that is moved or enlarged and displayed is stored in the information storage area. Is overwritten on a part of the displayed image information. A second image processing apparatus according to the present invention comprises: first storage means for storing information about an image; and control means for controlling writing and reading of information to and from the first storage means. Has a first image storage area for sequentially storing the continuous frame image data, and the control means stores the additional information added and displayed on the image corresponding to the frame image data in the first image. It is characterized by overwriting a part of each frame image data stored in the image storage area. The control means causes the additional information to be overwritten on a part of each frame image data during the process of writing the information of the blanking section of the frame image data to the first storage means. be able to

The first storage means may further include an additional information storage area for storing additional information, and the control means stores the additional information stored in the additional information storage area in the first image storage area. A part of each of the stored frame image data can be overwritten.

The information processing apparatus may further include a second storage unit for storing the additional information, wherein the control unit stores the additional information stored by the second storage unit in the first image storage area. Part of each frame image data can be overwritten.

The first storage means may further include a second image storage area for storing image information displayed in a display method different from the frame image data stored in the first image storage area. can do.

A first image storage area for storing information about an image, controlling writing and reading of the information, and sequentially storing the continuous frame image data, is provided, and is added to an image corresponding to the frame image data. The displayed additional information overwrites a part of each frame image data stored in the first image storage area.

A second image processing method according to the present invention includes a storage step of sequentially storing continuous frame image data in an information storage area, and a process of storing additional information added and displayed on an image corresponding to the frame image. And a step of overwriting a part of each frame image data stored in the information storage area.

Consecutive frame image data is sequentially stored in the information storage area, and additional information to be added and displayed on an image corresponding to the frame image is stored in a part of each of the frame image data stored in the information storage area. Will be overwritten. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing an external configuration of a television receiver and a remote commander.

FIG. 2 is a diagram for explaining the index display mode.

FIG. 3 is a diagram for explaining the index display mode.

FIG. 4 is a block diagram showing a configuration of a conventional television receiver capable of executing the index display mode.

FIG. 5 is a block diagram illustrating a configuration of the image processing unit in FIG.

FIG. 6A is a diagram for describing a memory map of the memory in FIG. FIG. 6B is a diagram for explaining a memory map of the memory in FIG. FIG. 7 is a block diagram showing a configuration of a television receiver to which the present invention is applied. FIG. 8 is a block diagram illustrating a configuration of the image processing unit in FIG.

FIG. 9A is a diagram for describing a memory map of the display image memory of FIG.

FIG. 9B is a diagram for describing a memory map of the display image memory of FIG.

FIG. 10 is a flowchart for explaining the scroll index display processing 1.

FIG. 11 is a flowchart for explaining the scroll index display processing 1.

FIG. 12 is a flowchart for explaining the additional information display processing for a moving image.

FIG. 13A is a diagram for explaining a different form of the memory map of the display image memory of FIG.

FIG. 13B is a diagram for describing a different form of the memory map of the display image memory of FIG. FIG. 14 is a flowchart for explaining the scroll index display processing 2.

FIG. 15 is a flowchart for explaining the scroll index display processing 2. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described. In order to clarify the correspondence between each means and each step of the invention described in the claims and the following embodiments, each means and each step are described. The following describes the features of the present invention by adding the corresponding embodiment (however, an example) in parentheses after the parentheses. However, of course, this description does not mean that each means and each step are limited to those described. The image processing device according to claim 1 (for example, the television receiver 15 1 in FIG. 7) includes a first storage unit (for example, a display image in FIG. 8) for storing information regarding an image to be displayed. A memory 174) and control means for controlling writing and reading of information to and from the first storage means (for example, the control section 172 of FIG. 8). A first image storage area for storing image information corresponding to an image that is moved or scaled and displayed (for example, a still image storage area 103 for an index screen in FIG. 9 or an index screen for an index screen in FIG. 13). The control means has a moving image storage area 2 1 1), and stores additional information (for example, a channel number, a logo mark, an EPG, and the like) added and displayed on an image which is moved or scaled and displayed. Stored in the first image storage area Characterized by overwriting the part of the image information. In the image processing apparatus described in claim 2, the first storage means stores an additional information storage area (for example, the additional information storage area 201 in FIG. 9 or FIG. 13) storing the additional information. Further, the control means overwrites part of the image information stored in the first image storage area with the additional information stored in the additional information storage area.

The image processing apparatus according to claim 3, wherein the second storage means for storing the additional information And a controller (for example, additional information memory 173 in FIG. 8), wherein the control means stores the additional information stored by the second storage means in the image information stored in the first image storage area. It is characterized by overwriting a part of them.

The image processing apparatus according to claim 4, wherein the first image storage area (for example, a still image storage area for index screen 1003 in FIG. 9) 1S stores a plurality of still images, The additional information is overwritten on a part of each of a plurality of still images stored in the first image storage area.

The image processing device according to claim 5, wherein consecutive frame image data is sequentially stored in a first image storage area (for example, a moving image storage area for index screen 2 1 1 in FIG. 13), The control means overwrites additional information on a part of each frame image data during a process of writing the information of the blanking section of the frame image data into the first storage means. And

The image processing apparatus according to claim 6, wherein the first storage means stores image information displayed by a display method different from the image information stored in the first image storage area. A second image storage area (for example, a main video signal storage area 101 in FIG. 9) is further provided.

The image processing method according to claim 7, further comprising: a storage step of storing image information corresponding to an image displayed after being moved or enlarged / reduced in an information storage area (for example, the processing of step S2 in FIG. 10). Or the processing of step S52 in FIG. 14) and the additional information added and displayed on the moving or scaled image are stored in the information storage area by the processing of the storage step. (For example, the processing in step S5 in FIG. 10 or the processing in step S55 in FIG. 14).

The image processing apparatus according to claim 8 (for example, the television receiver 15 1 in FIG. 7) includes first storage means (for example, a display image memory 17 in FIG. 8) for storing information related to an image. 4) and control means for controlling writing and reading of information to and from the first storage means (for example, the control unit 172 of FIG. 8). A first image storage area for sequentially storing successive frame image data (for example, a main video signal storage area 101 in FIG. 9 or FIG. 13 or a sub video signal storage area in FIG. 9 or FIG. 13) It has a storage area 102 or an index screen moving image storage area 211 1) shown in FIG. 13, and the control means controls the additional information ( For example, a channel number, a logo mark, an EPG, etc.) is overwritten on a part of each frame image data stored in the first image storage area.

The image processing apparatus according to claim 10, wherein the first storage means stores an additional information storage area (for example, the additional information storage area 201 in FIG. 9 or FIG. 13) for storing additional information. The control means overwrites the additional information stored in the additional information storage area with a part of each frame image data stored in the first image storage area. .

The image processing apparatus according to claim 11 further includes second storage means (for example, additional information memory 173 in FIG. 8) for storing the additional information, and the control means includes: The additional information stored by the means is overwritten on a part of each frame image data stored in the first image storage area.

The image processing device according to claim 12, wherein the first storage unit stores image information displayed by a display method different from the frame image data stored in the first image storage area. It is characterized by further including a second image storage area (for example, a still image storage area for index screen 103 in FIG. 9).

13. The image processing method according to claim 13, wherein a storing step of sequentially storing continuous frame image data in an information storage area (for example, the processing of step S22 in FIG. 12) and a frame image Overwriting part of each frame image data stored in the information storage area by the processing of the storage step with the additional information added and displayed on the image to be processed (for example, FIG. Step S25).

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 7 is a block diagram showing a configuration of a television receiver 151 to which the present invention is applied.

Parts corresponding to those in the conventional case described with reference to FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

That is, the television receiver 15 1 in FIG. 7 to which the present invention is applied includes a system controller 16 1 instead of the system controller 41, and the image processing unit 1 instead of the image processing unit 45. A new tuner 4 for selecting digital broadcast waves to be received based on the control of the system controller 16 1 3-3 and tuner 4 3-4, as well as the decoding unit 16 2 -1 and the decoding unit 16 2 _ 2 that decode the received digital broadcast wave video signal It has basically the same configuration as the television receiver 1 described using FIG.

The display screen displayed on the display unit 12 in the scroll index display mode in the television receiver 15 1 is the same as the conventional screen described with reference to FIGS. Omitted.

In FIGS. 2 and 3, a vertically long scroll index display area 22 is provided beside the main image display area 21 so that the scroll index displayed in the scroll index display area 22 is displayed. Although the case of scrolling in the vertical direction has been described, for example, a horizontally long scroll index display area 22 is provided above or below the main image display area 21 so as to counter the program in the horizontal direction. A plurality of corresponding still images may be displayed side by side so that the scroll index displayed in the scroll index display area 22 can be scrolled in the horizontal direction.

The system controller 16 1, based on the signal received by the infrared receiving unit 11 and indicating the operation input performed by the user using the remote commander 2, for example, tuners 4 3-1 to 4 3-4, You can control the broadcast channel to receive, The processing executed by the processing unit 163 is controlled.

The tuner 43-3 is a digital broadcast of a channel designated as a channel to be displayed on the main screen such as the main image display area 21 via the antenna 42-3 under the control of the system controller 161-1. The wave is received and supplied to the decoding unit 162-1. The tuners 4 3-4 are controlled by the system controller 16 1, and are controlled by the antennas 4 2-4 via the antennas 4 2-4. The broadcast waves are received and supplied to the decoding unit 162-2. In a display mode with only one sub-screen, such as a two-screen display, the tuner 4 3—4 receives only digital broadcast waves of the channel specified as the sub-screen, but the scroll index display mode is instructed. Scroll index display error

22 Digital broadcast waves of all channels that may be displayed in 2 are sequentially received.

The decoding unit 162-1 and the decoding unit 162-2 receive the input of the digital broadcast signal, decode the signal into a predetermined format, and perform a process of descramble as necessary.

The image processing unit 163 executes a process of converting or combining the supplied image data into image data corresponding to the image displayed on the display unit 12 under the control of the system controller 161 . FIG. 8 is a block diagram showing a detailed configuration of the image processing unit 163 of FIG.

Parts corresponding to those in the conventional case described with reference to FIG. 5 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

That is, the image processing unit 163 is provided with a screen division processing unit 171 in place of the screen division processing unit 62, and a control unit 172 is provided in place of the control unit 63, and A display image memory 174 is provided in place of the memory 66, a new additional information memory 173 and a drive 175 are provided if necessary, and an OSD microcomputer 64 and a high-speed switch are provided. Basically, except that the IC 65 is omitted, It has the same configuration as 45.

In addition, the screen division processing unit 171 is provided with a memory controller 192 instead of the memory controller 95, and newly stores information in the additional information memory 173 and reads information. It basically has the same configuration as the screen division processing unit 62 in FIG. 5 except that a memory controller 191 for executing the function is provided.

The AD converter 61-1 receives the supply of analog component signals from the Y / C separation unit Chroma decode unit 44-1, converts it into a digital signal, and converts the main image data of the screen division processing unit 17 1 It is supplied to the scaling processor 91. Further, the main image data enlargement / reduction processing section 91 receives supply of the image data decoded in the decoding section 162-1. The AD converter 61-2 receives the analog component signal from the Y / C separation and chroma decoding unit 44-12, converts it into a digital signal, and enlarges the sub-image data in the screen division processing unit 17 1 It is supplied to the reduction processing section 92. Further, the sub-image data enlargement / reduction processing section 92 receives the supply of the image data decoded in the decoding sections 162-212.

The control unit 172 controls the operations of the screen division processing unit 171 and the OSD 69 based on the control signal supplied from the controller 161. The control unit 172 controls, for example, the memory controller 192 of the screen division processing unit 171 and a predetermined area of the display image memory 174 (an additional information storage area described later with reference to FIG. 9). The information stored in 201) is written to the information stored in another area of the display image memory 174 (still image storage area 103 for index screen described later with reference to FIG. 9). Processing can be executed.

A drive 17 5 is connected to the controller 17 2 as necessary, and an optical disk 18 1, a magnetic disk 18 2, and a magneto-optical disk 18 mounted on the drive 17 5 are connected. Information is exchanged with 3, or semiconductor memory 184.

The main image data enlargement / reduction processing part 91 of the screen division processing part 17 1 Based on the control of 2, the processing for changing the size of the display image based on the supplied digital signal in accordance with the size of the main screen in the display mode specified by the user is executed, and the processing is performed by the screen synthesis unit 96. It is output or supplied to the memory controller 192 via the memory bus 93 and stored in the display image memory 174.

The sub-image data enlargement / reduction processing section 92 of the screen division processing section 171, based on the control of the control section 172, displays the size of the display image by the supplied digital signal in the display mode instructed by the user. Of the sub-screen in accordance with the size of the sub-screen, and outputs the result to the screen synthesizing unit 96, or the force supplied to the still image extracting unit 94 via the memory path 93, or the memory bus 93 Is supplied to the memory controller 192 via the, and is stored in the display image memory 1774. When the scroll index display mode is commanded, the sub-image data enlargement / reduction processing section 92 receives supply of image data of all the channels that may be displayed in the scroll index display area 22. For the supplied image data, the size of the display screen is sequentially changed according to the size of the sub-screen, and the process of outputting is performed.

The still image extracting unit 94 acquires the image data that has been subjected to the enlargement / reduction processing by the sub-image data enlargement / reduction processing unit 92 via the memory bus 93, and acquires one frame every predetermined time, that is, A still image is extracted and supplied to the screen synthesizing section 96 or to the memory controller 192 via the memory bus 93 and stored in the display image memory 174.

The memory controller 192 stores the supplied image data in a predetermined area of the display image memory 174 or processes the additional information memory 173 through the memory controller 191 via the memory bus 93. Upon receiving the supply of the read additional information, it is stored in a predetermined area of the display image memory 174, or the image data stored in the display image memory 174 is read, and the image data is stored in the screen combining section 96. Execute the output process.

The additional information memory 173 contains images to be displayed, such as a channel number, a logo mark indicating a broadcast station, and an EPG (Electric Program Guide) indicating program contents. Information to be added to the surface and displayed is stored.

The memory controller 191 stores information in the additional information memory 173 or reads information stored in the additional information memory 173 based on the control of the control unit 172, The processing to be supplied to the memory controller 192 via the memory bus 93 is executed.

FIG. 9 shows a memory map of the display image memory 174.

In addition to the main video signal storage area 101, the sub video signal storage area 102, and the multiple index screen still image storage areas 103, the display image memory 174 is added. An additional information storage area 201 for storing additional information read from the information memory 173 is provided. The main video signal storage area 101 stores, for example, image data displayed on the main screen such as the main image display area 21. The sub video signal storage area 102 stores, for example, image data displayed on a single sub screen in a two-screen display mode or the like. In the index screen still image storage area 103, image data to be displayed on a sub-screen composed of a plurality of images such as a scroll index display area 22 is stored. In the still image storage area 103 for the index screen, an area from which image data is read is referred to as a read area 104.

The control unit 172 controls the memory controller 192 to store additional information memory such as a channel number, a logo mark indicating a broadcast station, an EPG indicating program content, etc. in the additional information storage area 201. In addition to storing the additional information read from the additional information storage area, the image information stored in the index screen still image storage area 103 among the information stored in the additional information storage area The corresponding additional information is directly overwritten at a predetermined position corresponding to the position to be displayed on the sub-screen in the index image still image storage area 103. Therefore, after the overwriting process is completed, the index screen still image storage area 103 stores an index screen still image in which additional information such as a channel number has already been overwritten. For example, as shown in FIG. Of the still image storage area 103 for the data screen, the still image storage area 103-3 for the index screen included in the readout area 104 and the still image storage area 103-3 for the index screen are read. If so, it is assumed that the still images corresponding to channel 1, channel 3, channel 4, and channel 6 are displayed in the scroll index display area 22.

In this state, when the user performs a scroll operation using the remote commander 2 to view the screen displayed at the bottom of the scroll index display area 22, the scroll operation is included in the read area 104. The position of the read data is shifted by one line or several lines at a time, and the position of the read area 104 is shifted as shown in FIG. From the middle of 1, the still image storage area for index screen 1 0 3—5 is read. Therefore, a part of the still image corresponding to channel 1 displayed at the top of the scroll index display area 22 is displaced from the scroll index display area 22 and is located below the scroll index display area 22. In the section, a part of the still image corresponding to channel 8 is displayed.

At this time, since the additional information stored in the additional information storage area 201 is overwritten on each of the still images in the index screen still image storage area 103 to be read out, it is scrolled and displayed. Along with each still image, additional information such as channel number is smoothly moved and displayed.

By doing so, additional information corresponding to the still image for the index screen is transferred to the display image memory 174 without moving the index screen without performing complicated processing and without deteriorating the image. It is possible to store image data that can be smoothly moved following the image data.

Returning to the description of FIG. The screen synthesizing unit 96 includes the image data supplied from the memory controller 192 via the memory bus 93, or the main image data enlargement / reduction processing unit 91, the sub image data enlargement / reduction processing unit 92, or Combines the image data supplied from the still image extraction unit 94 based on the display mode specified by the user. Then, the image is supplied to the image quality adjustment unit 67.

The image quality adjustment unit 67 adjusts the image quality of the supplied composite image, and supplies the image to the 030 synthesis unit 68. The OSD 69 outputs information to be superimposed on the display image to the OSD synthesizing unit 68 based on the control of the control unit 172. The 030 synthesizing unit 68 synthesizes the superimposition information output by the OSD 69 with the supplied image data and outputs it.

The image data output from the OSD synthesizing unit 68 is displayed on the display unit 12 shown in FIG. 7 in the same manner as in the past, for example, using a digital display such as an LCD (Liquid Crystal Display) or If the data can be displayed, it is output directly to the display unit 12, and the display unit 12 can display analog data such as a CRT (Cathode Ray Tube). In such a case, the signal is output to the DA converter 46, converted into an analog signal, and then output to the display unit 12.The display unit 12 displays an image corresponding to the supplied image data. indicate.

In FIG. 8, even if some or all of the image quality adjustment unit 67, the 〇SD 69, or the OSD synthesis unit 68 is configured inside the screen division processing unit 172, Needless to say, it's good. For example, if the image quality adjustment unit 67, OSD 69, or OSD synthesis unit 68 is configured inside the screen division processing unit 172, processing from screen division to superimposition of OSD will be performed. It can be realized by one chip IC or LSI.

Next, the scroll index display processing 1 executed by the television receiver 15 1 to which the present invention is applied will be described with reference to the flowcharts of FIG. 10 and FIG.

In step S 1, the system controller 16 1 receives a scroll index display command from the remote commander 2 via the infrared receiver 11. In step S2, the control unit 172 of the image processing unit 163 stores the still image storage area 103 for the index screen in the display image memory 174 based on the control of the system controller 161, INDEX extracted by the processing of the screen division processing unit 17 1 The process of writing a still image for the screen is started. This processing is continued until it is determined in the processing of step S10 to be described later that the operation of ending the scroll index display has been received.

In step S3, the control unit 172 controls the memory controller 191 to read the additional information memory 173 from the additional information memory 173, for example, a channel number, a logo mark indicating a broadcast station, an EPG indicating the contents of a program, or the like. The additional information to be displayed together with the still image in the scroll index display area 22 is read.

In step S4, the control unit 172 controls the memory controller 192 to write the additional information read in step S3 in the additional information storage area 201 of the display image memory 174.

In step S5, the control unit 172 controls the memory controller 192 to scroll out of the additional information stored in the additional information storage area 201 of the display image memory 174. The information corresponding to the still image to be displayed in the task display area 22 is written into a predetermined portion of the index image still image storage area 103 stored in the display image memory 174 (overwrite). . This processing is continued until it is determined in the processing of step S10 to be described later that the operation of ending the scroll index display has been received. In other words, a new still image is written in the index screen still image storage area 103 at regular intervals by the process of step S2, so that additional information is overwritten each time with a new still image. Is done. In step S6, the control section 17 2 controls the memory controller 19 2 to store the additional image written still image storage area 10 0 in the display image memory 17 4 in which the additional information is written. Read the information to be displayed in the scroll index display area 2 of 3.

In step S7, the control unit 172 screen-synthesizes the information of the index screen still image storage area 103 in which the additional information is written, read in step S6, via the memory bus 93. Supply to part 96. The screen synthesizing unit 96 converts the supplied information of the index screen still image storage area 103 into the main image data scaling processing. The image data is combined with the image data to be displayed in the main image display area supplied from the control section 91 or the display image memory 174 and output to the image quality adjustment section 67.

In step S8, the image quality adjustment section 67 performs image quality adjustment on the supplied composite image, and outputs the resultant image to the OSD synthesis section 68. The synthesis unit 68 superimposes the information supplied from the OSD 69 on the supplied image as necessary.

In step S9, the display unit 12 outputs the digital image data output from the image processing unit 163 or the digital image data output from the image processing unit 163, and is converted into analog data by the DA converter 46. Receives the analog image data and displays a display screen consisting of the main screen and scroll indexes.

In step S 10, the system controller 16 1 determines whether or not the user has received an operation to end the scroll index display based on the signal supplied from the remote commander 2 via the infrared receiver 11. Judge.

If it is determined in step S10 that the operation of ending the scroll index display has not been received, in step S11, the system controller 161 transmits the command from the remote commander 2 via the infrared receiver 11 to the remote controller 2. Based on the supplied signal, it is determined whether or not the user has performed a scroll operation of the scroll index. If it is determined in step S11 that the operation of the scuronole index has not been performed, the process returns to step S10, and the subsequent processing is repeated.

In step S11, when it is determined that the operation of the skuronole index has been performed, in step S12, the control unit 172 controls the display image memory 1 based on the control of the system controller 161. Read the data to be read from the still image storage area 103 for the index screen of 7 4 one line or several lines shifted according to the user's operation input. After the processing in step S12 ends, the processing returns to step S7, and the subsequent processing is repeated.

If it is determined in step S10 that the operation for ending the scroll index display has been received, the process ends. By such a process, a simple microcomputer and a high-speed switch IC are not used to superimpose character information and the like on the analog image signal before the image processing as in the related art. In the processing, additional information to be displayed together with the still image in the scroll index display area 22 such as a channel number, a logo mark indicating a broadcast station, an EPG indicating the program content, and the like can be written into the digital image signal. it can.

Therefore, even when a broadcast wave of not only an analog signal but also a digital signal can be received by applying the present invention, an image obtained by converting a digital signal into an analog signal or an analog signal into a digital signal can be obtained. The information added to the moving image can be smoothly moved and displayed, following the movement of the image, without causing deterioration of the image. In addition, by using the configuration of the present invention, it is possible to omit a dedicated microphone port computer, a high-speed switch IC, and the like, which are used in the conventional device, and it is possible to reduce the size and cost of the device. Become.

In the above description, a case has been described in which, in the scroll index display mode, additional information associated with the display of the scroll index on the main screen is smoothly moved and displayed. The present invention is applicable to various cases in which additional information is smoothly moved and displayed along with information. Further, in the present invention, for example, in a two-screen mode or the like, when the size of one or both screens can be freely changed, the size of the additional information is changed according to the size of the screen. It is also applicable where it can be changed.

For example, one or both of the image data stored in the main video signal storage area 101 and the sub video signal storage area 102 of the display image memory 174 shown in FIG. Writes information such as channel numbers, logos indicating broadcast stations, EPGs indicating program contents, etc. stored in the additional information storage area 201, and enlarges or reduces the image data in which the information is written And display it. In the two-screen mode based on the image data stored in the main video signal storage area 101 and the sub video signal storage area 102, the size of one or both screens can be reduced. When it can be changed freely, the size of the additional information can be smoothly changed according to the size of the screen.

The present invention is also applicable to a case where additional information is displayed on a moving image displayed by image data stored in the main video signal storage area 101 or the sub video signal storage area 102. Applicable. The additional information stored in the additional information storage area 201 is stored in the main video signal storage area 101 or the sub-video signal storage area 102. By overwriting the data, additional information can be added to the moving image and displayed. In this case, not only a moving image whose size and display position are fixed, but also when the moving image is moved or displayed in a changed size, the moving image is displayed in accordance with the position and size of the screen. It is possible to display the moving image with additional information.

In other words, the control unit 172 controls the memory controller 192 to add, for example, a channel number, a logo mark indicating a broadcast station, an EPG indicating the content of the program, or the like to the additional information storage area 201. In addition to storing the additional information read from the information memory 173, the frame corresponding to the moving image data to be displayed in the main video signal storage area 101 or the sub video signal storage area 102 The image data is stored sequentially (one frame or several frames), and the process of reading out the written frame image data one frame at a time is executed.

Since the frame image data includes information on a blanking section that is not actually displayed, the control unit 172 stores the information in the additional information storage area 201 during the blanking section storage processing. Of the stored information, additional information corresponding to each of the frame image data stored in the main video signal storage area 101 or the sub video signal storage area 102 is displayed on the display screen. Directly overwrite the specified position corresponding to the position to be displayed. After the overwriting process for each frame is completed, the main video signal storage area 101 or the sub video signal storage area 102 stores, for example, a moving image in which additional information such as a channel number has already been overwritten. The frame image data to be composed is stored. Therefore, the displayed moving image includes the additional information.

Next, the additional information display processing for a moving image will be described with reference to the flowchart in FIG. Here, the additional information is displayed on the moving image displayed in the main image display area 21 by overwriting the additional information on the frame image data written in the main video signal storage area 101. The case will be described. By overwriting the frame image data written in the sub video signal storage area 102 with the additional information, for example, when the additional information is displayed on the sub image in the two-screen display, basically, Since the same processing is executed, the description is omitted.

In step S21, the system controller 161 receives a command to display additional information for a moving image displayed in, for example, the main image display area 21 from the remote commander 2 via the infrared receiver 11 .

In step S 22, the control section 17 2 of the image processing section 16 3 stores the main video signal storage area 101 of the display image memory 17 4 based on the control of the system controller 16 1. Then, a process of writing the frame image data constituting the moving image generated by the process of the screen division processing unit 171 is started.

In step S23, the control unit 172 controls the memory controller 191 so that, for example, a channel number, a logo mark indicating a broadcast station, an EPG indicating the content of the program, etc. The additional information to be added to the moving image displayed in the main image display area 21 and displayed is read.

In step S224, the control unit 172 controls the memory controller 192 to store the additional information read in step S23 in the additional information storage area 201 of the display image memory 174. Write.

In step S25, the control unit 172 controls the memory controller 192 Then, during the processing of the vertical blanking interval of the frame image data stored in the main video signal storage area 101, the additional information storage area 201 of the display image memory 174 is added. Of the frame image data in the main video signal storage area 1 1 (overwrite). This processing is continued for each frame until it is determined in the processing of step S30 to be described later that the operation of ending the display of the additional information on the moving image has been received. That is, since the continuous frame image data is sequentially written in the main video signal storage area 101, the additional information is overwritten on all the frame image data each time.

In step S 26, the control section 17 2 controls the memory controller 19 2 to store the main video signal storage area 10 in which the additional information is stored in the display image memory 17 4. Read the information of 1.

In step S 27, the control unit 17 2 combines the information of the video signal storage area 101 into which the additional information has been written, read in step S 26, via the memory bus 93. Supply to part 96. The screen combining unit 96 combines the supplied information of the main video signal storage area 101 with other image data as necessary, and outputs the combined information to the image quality adjusting unit 67.

In step S28, the image quality adjustment unit 67 performs image quality adjustment on the supplied combined image, and outputs the resultant image to the OSD combination unit 68. The synthesis unit 68 superimposes the information supplied from the OSD 69 on the supplied image as necessary.

In step S29, the display unit 12 converts the digital image data output from the image processing unit 163 or the digital image data output from the image processing unit 163 into analog data by the DA converter 46. In response to the supply of analog image data, a display screen with additional information added to the main image display area 21 is displayed.

In step S30, the system controller 161 receives an operation of ending the display of the additional information on the moving image from the user based on the signal supplied from the remote commander 2 via the infrared receiver 11. Is determined. If it is determined in step S30 that the operation of ending the display of the additional information on the moving image has not been received from the user, the process returns to step S25, and the subsequent processes are repeated. That is, the corresponding additional information is overwritten on the sequentially stored frame image data for displaying the moving image, and the frame image data overwritten with the additional information is read and displayed.

When the channel of the program to be displayed is changed, information such as the channel number corresponding to the program to be displayed, a logo mark indicating a broadcasting station, and an EPG indicating the content of the program are added by the processing in step S25. The information is read from the information storage area 201 and is overwritten on a predetermined portion of each frame image data in the main video signal storage area 101.

By such processing, the additional information stored in the additional information storage area 201 is stored in the main video signal storage area 101 or the moving image stored in the sub video signal storage area 102. Since each of the frame image data for display is overwritten, additional information can be added to the moving image to be displayed. In this case, not only the moving image whose size and display position are fixed, but also when the moving image is moved or displayed with its size changed, It is possible to add additional information to the image and display it.

When the tuners 43-2 and 43-3-4 in FIG. 7 can receive a plurality of broadcast signals or have a plurality of tuners for receiving sub-images, the display image memory As shown in FIG. 13, instead of the index screen still image storage area 103 of FIG. 9, an index screen moving image storage area 2 1 1 is provided in 1 7 4 By sequentially storing the frame image data and reading the frame image data in the read area 104 based on the user's instruction, the moving image can be displayed in the scroll index display area 22. Good.

Then, the corresponding additional information is overwritten on each frame image data stored in the index screen moving image storage area 211 on a frame-by-frame basis. Is also good. Since the frame image data includes information on a blanking section that is not actually displayed, the control unit 172 determines whether the additional information storage area 201 is stored during the blanking section storage processing. Of the information stored in the index screen moving image storage area 211, the additional information corresponding to each of the frame image data stored in the index screen moving image storage area 211 is stored in a predetermined position corresponding to the position to be displayed on the display screen. Let them overwrite directly.

Then, for example, by sequentially reading the image data included in the read area 104 from the frame image data constituting the moving image in which the additional information such as the channel number has already been overwritten, the scrolling is performed. Since additional information can be displayed on the moving image displayed in the data display area 22, scrolling is instructed on the display of the scroll index display area 22, and the display position of the moving image is changed. In such a case, the additional information can be smoothly moved and displayed together with the moving image.

Next, the scroll index display processing 2 when displaying a moving image in the scroll index display area 22 will be described with reference to the flowcharts of FIGS. 14 and 15.

In step S51, the system controller 161 receives a scroll index display command from the remote commander 2 via the infrared receiving section 11.

In step S52, the control section 172 of the image processing section 163 stores the video storage area 211 for the index screen in the display image memory 1774 based on the control of the system controller 161. A process of writing frame image data constituting a moving image for an index screen, which is extracted by the process of the screen division processing unit 171, is started. This process is continued until it is determined in the process of step S60 described later that the operation of ending the scroll index display has been received.

In step S53, the control unit 172 controls the memory controller 191 to output, for example, a channel number and a logo representing a broadcast station from the additional information memory 173. Read additional information to be displayed along with the moving image in the scroll index display area 22, such as marks and EPGs indicating the contents of the program.

In step S54, the control unit 172 controls the memory controller 192 to store the additional information read in step S53 in the additional information storage area 201 of the display image memory 174. Write.

In step S55, the control unit 172 controls the memory controller 192 to control the scroll index of the additional information stored in the additional information storage area 201 of the display image memory 174. Information corresponding to the moving image to be displayed in the display area 22 is stored in the index image moving image storage area 2 11 stored in the display image memory 1 74. During this, each frame image data is written into a predetermined portion (overwriting). This processing is continued until it is determined in the processing of step S60 described later that the operation of ending the scroll index display has been received. In other words, new frame image data is written into the index screen moving image storage area 2 1 1 at regular intervals by the processing of step S 52, so that additional information is also added to the new frame image data each time. Will be overwritten.

In step S56, the control unit 172 controls the memory controller 192 to store the index screen moving image storage area 2 1 in which the additional information is stored, which is stored in the display image memory 174. Read the information to be displayed in the scroll index display area 2 of 1.

In step S57, the control unit 172 transfers the information of the index screen moving image storage area 211 to which the additional information has been written read out in step S56 to the screen via the memory bus 93. It is supplied to the synthesis unit 96. The screen synthesizing unit 96 stores the supplied information of the index screen moving image storage area 211 in the main image data enlargement / reduction processing unit 91 or the main image display area supplied from the display image memory 174. The image data is combined with the image data to be displayed and output to the image quality adjustment unit 67.

In step S58, the image quality adjusting unit 67 adjusts the image quality of the supplied composite image. And outputs the result to the OSD synthesis unit 68. The combining unit 68 superimposes the information supplied from the OSD 69 on the supplied image as necessary.

In step S59, the display unit 12 converts the digital image data output from the image processing unit 163 or the digital data output from the image processing unit 163 into analog data by the DA converter 46. It receives analog image data and displays a display screen consisting of a main screen and scroll indices.

In step S 60, the system controller 16 1 determines whether or not the user has received an operation to end the scroll index display based on the signal supplied from the remote commander 2 via the infrared receiver 11. Judge.

If it is determined in step S60 that the operation of ending the scroll index display has not been received, in step S61, the system controller 161 supplies the remote commander 2 from the remote commander 2 via the infrared receiver 11. It is determined whether or not the user has performed a scroll operation of the scroll index based on the signal transmitted. If it is determined in step S61 that the operation of the skuronole index has not been performed, the process returns to step S60, and the subsequent processes are repeated.

If it is determined in step S61 that the scroll operation of the scroll index has been received, in step S62, the control unit 172 executes the display image memory 1 based on the control of the system controller 161. 74 Reads the data to be read from the index screen movie storage area 2 1 1 by one or several lines depending on the user's operation input. After the processing in step S62 ends, the processing returns to step S57, and the subsequent processing is repeated.

If it is determined in step S60 that the operation of ending the scroll index display has been received, the processing is ended.

By such processing, even when a moving image is displayed on the scroll index, the moving image moves without causing image deterioration due to conversion from a digital signal to an analog signal or from an analog signal to a digital signal. Attached to the statue The information to be added can be displayed by moving smoothly, following the movement of the image.

By the processing described above, simple processing can be performed without superimposing character information on analog image signals before image processing using a dedicated microcomputer or high-speed switch IC. Additional information to be displayed along with the display image, such as a channel number, a logo mark indicating a broadcast station, or an EPG indicating the content of a program, for example, in a digital image signal for displaying a moving image or still image during processing Can be written.

Therefore, even when a broadcast wave of not only an analog signal but also a digital signal can be received by applying the present invention, an image obtained by converting a digital signal into an analog signal or an analog signal into a digital signal can be obtained. Adds predetermined information to a moving image and displays it without causing deterioration of the image, and displays information added to a moving image by moving it smoothly by following the movement of the image be able to. In addition, by using the configuration of the present invention, it is possible to omit a dedicated microcomputer, a high-speed switch IC, and the like used in a conventional device, so that it is possible to reduce the size and cost of the device. .

The series of processes described above can be executed by software. The software is capable of executing various functions by installing a computer in which the program constituting the software is built into dedicated hardware or installing various programs. Installed from a recording medium to a personal computer.

As shown in FIG. 8, this recording medium is a magnetic disk 18 1 (including a flexible disk) on which the program is recorded and an optical disk 1 which are distributed separately from the computer in order to provide the program to the user. 8 2 (including CD-ROM (Compact Disk-Read Only Memory), DVD (Digital Versatile Disk)), magneto-optical disk 1 8 3 (including MD (Mini-Disk) (trademark)), or semiconductor memory It is composed of package media consisting of 184, etc. Further, in this specification, steps for describing a program recorded on a recording medium are not limited to processing performed in chronological order in the order described, but are not necessarily performed in chronological order. Alternatively, it also includes processing that is executed individually. Industrial applicability

As described above, according to the present invention, the additional information can be displayed together with the image. In particular, additional information that is added and displayed on an image that is moved or enlarged and displayed can be smoothly moved or enlarged and displayed together with the image.

According to another aspect of the present invention, additional information can be displayed together with an image. In particular, it is possible to add information to a moving image and display it.

Claims

The scope of the claims

1. a first storage means for storing information about the image to be displayed;

Control means for controlling writing and reading of information to and from the first storage means,

The first storage unit has a first image storage area for storing image information corresponding to an image displayed while being moved or scaled,

The control unit may include, as a part of the image information stored in the first image storage area, additional information that is added and displayed on the image that is moved or enlarged and displayed. Overwrite

An image processing apparatus comprising:

2. The first storage means further has an additional information storage area for storing the additional information,

The control means overwrites the additional information stored in the additional information storage area with a part of the image information stored in the first image storage area. 2. The image processing device according to item 1.

3. It further comprises second storage means for storing the additional information,

The control unit overwrites the additional information stored by the second storage unit with a part of the image information stored in the first image storage area. 2. The image processing apparatus according to claim 1, wherein:

4. The first image storage area stores a plurality of still images,

The control unit overwrites the additional information on a part of each of the plurality of still images stored in the first image storage area.

2. The image processing device according to claim 1, wherein:

5. In the first image storage area, continuous frame image data is sequentially stored,

The control means, during writing of the information of the blanking section of the frame image data into the first storage means, performs processing for each of the frame image data. Overwrite the additional information on some of the data

2. The image processing device according to claim 1, wherein:

6. The first storage means further includes a second image storage area for storing image information displayed in a display method different from the image information stored in the first image storage area.

2. The image processing device according to claim 1, wherein:

7. In an image processing method for executing a process of displaying information stored in an information storage area,

A storage step of storing image information corresponding to an image displayed by being moved or scaled in the information storage area;

An overwriting step of overwriting additional information which is added and displayed on the image displayed after being moved or enlarged and reduced to a part of the image information stored in the information storage area by the processing of the storing step When

An image processing method comprising:

8. An image processing device for processing information corresponding to an image to be displayed, comprising: first storage means for storing information on the image;

The first storage means has a first image storage area for sequentially storing continuous frame image data,

The control means may include additional information added and displayed on an image corresponding to the frame image data, a part of each of the frame image data stored in the first image image storage area. Overwrite

An image processing apparatus comprising:

9. The control means may include, during a process of writing the information of the blanking section of the frame image data into the first storage means, a part of each of the frame image data and the additional information. Overwrite 9. The image processing device according to claim 8, wherein:

10. The first storage means further has an additional information storage area for storing the additional information,

The control means overwrites the additional information stored in the additional information storage area on a part of each of the frame image data stored in the first image storage area.

9. The image processing device according to claim 8, wherein:

1 1. A second storage unit for storing the additional information is further provided.

The control unit overwrites the additional information stored by the second storage unit on a part of each of the frame image data stored in the first image storage area.

9. The image processing device according to claim 8, wherein:

12. The first storage means further includes a second image storage area for storing image information displayed in a display method different from the frame image data stored in the first image storage area.

9. The image processing device according to claim 8, wherein:

1 3. An image processing method for executing a process of displaying information stored in an information storage area,

A storage step of sequentially storing continuous frame image data in the information storage area;

An overwriting step of overwriting additional information added and displayed on the image corresponding to the frame image to a part of each of the frame image data stored in the information storage area by the processing of the storing step When

An image processing method comprising: