CN1120207A

CN1120207A - Image synthesis device and method

Info

Publication number: CN1120207A
Application number: CN 94115281
Authority: CN
Inventors: 徐世斌
Original assignee: United Microelectronics Corp
Current assignee: United Microelectronics Corp
Priority date: 1994-09-16
Filing date: 1994-09-16
Publication date: 1996-04-10
Anticipated expiration: 2014-09-16
Also published as: CN1063858C

Abstract

An image synthesizing apparatus includes: a start and end location register; a horizontal and a vertical shift register; first and second adders; a horizontal position display device; a position comparator; an image display control device; a memory; a memory reading device; the method is that after the frame data is read from the memory, corresponding to each scanning line, the memory reading device generates a memory address according to a base position, the screen vertical position and the vertical displacement of the frame data to automatically read in the horizontal starting position and the horizontal ending position of the scanning line, and outputs a position indication signal after passing through the position comparator to generate graphic output.

Description

Image synthesis device and method

本发明涉及一种图像合成装置及方法。The invention relates to an image synthesis device and method.

目前，一般电视游戏机内的图像产生器都是将图形数据存放在存储器内，再由图像产生器读出图形数据，并且输出显示在电视屏幕上，因此若欲得到较好且较生动的图像效果，则需要使用容量较大的存储器。但是对于一些简单的图像，例如为了改变屏幕显示区大小的遮没图形或是爆炸产生的图形光圈等，这些图像均相当单纯，没有复杂的图形颜色，所以若将这些图像以一般图形影像的方式储存在存储器中，则会占据太多的存储器空间，使得成本相对地提高。为了改进这种缺点，可利用图像的外框数据来显示图像，如此便可不必储存整个图像的图形数据，而仅存图像的外框数据，藉以节省所需的存储器容量。然而这种方法在图形不变的情况下，若要移动图形的位置，仍须改写存储器内所有的外框数据，而影响到即时显示的效果。At present, the image generator in the general TV game machine is to store the graphics data in the memory, and then the image generator reads the graphics data, and the output is displayed on the TV screen. Therefore, if you want to get a better and more vivid image effect, you need to use a larger capacity memory. However, for some simple images, such as masking graphics for changing the size of the screen display area or graphic apertures produced by explosions, these images are quite simple without complex graphic colors, so if these images are used in the form of general graphic images If it is stored in the memory, it will occupy too much memory space, which will relatively increase the cost. In order to improve this shortcoming, the frame data of the image can be used to display the image, so that it is not necessary to store the graphic data of the entire image, but only the frame data of the image, thereby saving the required memory capacity. However, in this method, under the condition that the graphics remain unchanged, if the position of the graphics is to be moved, all the frame data in the memory must be rewritten, which affects the real-time display effect.

有鉴于此，为改进其缺点，本发明的一个目的是提供一种图像合成装置及方法，其可利用图像的外框数据来显示图像，藉以减少所需的存储器容量，降低图像合成装置的制造成本。In view of this, in order to improve its shortcomings, an object of the present invention is to provide an image synthesis device and method, which can use the frame data of the image to display the image, thereby reducing the required memory capacity and reducing the manufacturing cost of the image synthesis device. cost.

本发明的另一个目的是提供一种图像合成装置及方法，其可使所显示的图像可自由移动，藉以增加显示画面的变化。Another object of the present invention is to provide an image synthesizing device and method, which can freely move the displayed image, thereby increasing the variation of the displayed image.

本发明的图像合成装置包括：一起始位置暂存器，用以储存图像外框的起始位置数据；一终止位置暂存器，用以储存图像外框的终止位置数据；一水平位置产生装置，用以对应于屏幕扫描线所在的水平位置而产生一水平位置信号；一位置比较器，用以比较前述图像外框的位置数据和前述水平位置信号；一水平位移暂存装置，用以储存水平位移数据，此水平位移数据可在位置比较器进行比较之前，先分别和前述起始位置数据及终止位置数据相加或是先和前述水平位置信号相加；一垂直位移暂存装置储存垂直位移数据；一图像显示控制装置，用以依据前述位置比较器的比较结果，控制输出的图像数据；一存储器读取装置，其利用一屏幕垂直位置及垂直位移数据作为索引以读取存储器内的外框数据；及一存储器，用以储存外框数据。其中，前述起始位置暂存器及终止位置暂存器内的外框数据可由中央处理器直接写入或从存储器中读入。如此，软件设计人员可选择使用较大的存储器或是利用较多的程序执行时间去执行较复杂的程序，以获得同样的效果，当然在实施上这种选择是可省略的。The image synthesis device of the present invention includes: a starting position register for storing the starting position data of the image outer frame; an end position register for storing the end position data of the image outer frame; a horizontal position generating device , used to generate a horizontal position signal corresponding to the horizontal position of the screen scanning line; a position comparator, used to compare the position data of the aforementioned image frame with the aforementioned horizontal position signal; a horizontal displacement temporary storage device, used to store Horizontal displacement data, the horizontal displacement data can be added to the aforementioned start position data and end position data or first added to the aforementioned horizontal position signal before the position comparator is compared; a vertical displacement temporary storage device stores vertical Displacement data; an image display control device, used to control the output image data according to the comparison result of the aforementioned position comparator; a memory reading device, which uses a screen vertical position and vertical displacement data as an index to read the memory. frame data; and a memory for storing frame data. Wherein, the outer frame data in the aforementioned start position register and end position register can be directly written by the central processing unit or read in from the memory. In this way, software designers can choose to use a larger memory or use more program execution time to execute more complex programs to obtain the same effect. Of course, this option can be omitted in implementation.

利用本发明的图像合成装置合成图像的方法是有下列几种操作模式，其因外框数据的产生及储存方式的不同而各有差异。第一种方式包括步骤如下：(1)存储器读取装置根据基底暂存器，屏幕垂直位置产生器及垂直位移暂存器产生一存储器位址；(2)存储器依前述的存储器位址将外框数据送至位置暂存器中；(3)将水平位移暂存器的内容加上位置暂存器的内容或一水平扫描线的水平位置；(4)接着再利用一位置比较器比较位置暂存器的内容及水平扫描线的水平位置，藉以产生一位置指示信号，并据以产生图形输出。在上述方法中，只要更改水平位移暂存器及垂直位移暂存器，便可移动图形。The image synthesis method of the image synthesis device of the present invention has the following operation modes, which are different due to the different ways of generating and storing the frame data. The first method includes the following steps: (1) the memory reading device generates a memory address according to the base temporary register, the screen vertical position generator and the vertical displacement register; The frame data is sent to the position register; (3) add the content of the horizontal displacement register to the content of the position register or the horizontal position of a horizontal scanning line; (4) then use a position comparator to compare the position The content of the temporary register and the horizontal position of the horizontal scanning line are used to generate a position indication signal, and to generate graphic output accordingly. In the above method, only the horizontal shift register and the vertical shift register can be changed to move the graphics.

第二种合成图像的方法和前述第一种方法类似，只是因为在此方法中存储器读取装置仅根据基底暂存器产生存储器位址，故欲移动图形，需在更换扫描线间重新改写存储器。The second method of synthesizing images is similar to the aforementioned first method, except that in this method, the memory reading device only generates the memory address according to the base temporary register, so to move the graphics, the memory needs to be rewritten between scanning lines .

第三种合成图像的方法包括下列步骤：(1)由一中央处理器直接将外框数据写入位置暂存器中；(2)将水平位移暂存器的内容加上位置暂存器的内容或一水平扫描线的水平位置；(3)接着再利用一位置比较器比较位置暂存器的内容及水平扫描线的水平位置，藉以产生一位置指示信号，并据以产生图形输出。在上述方法中，移动图形需要在换扫描线之间重新改写位置暂存器的内容。The method for the 3rd kind of synthetic image comprises the following steps: (1) by a central processing unit directly writing frame data in the position register; (2) adding the content of the horizontal displacement register to the position register content or the horizontal position of a horizontal scan line; (3) then use a position comparator to compare the content of the position register with the horizontal position of the horizontal scan line, so as to generate a position indicating signal, and generate graphic output accordingly. In the above method, moving the graphics needs to rewrite the content of the position register between scanning lines.

为了更清楚地说明本发明的方法、装置及特征，兹配合附图详细说明较佳实施例如后：In order to illustrate the method, device and features of the present invention more clearly, the preferred embodiments are described in detail below in conjunction with the accompanying drawings:

附图的简单说明：A brief description of the attached drawings:

图1是说明本发明的图像合成装置的一较佳实施例的方框图；FIG. 1 is a block diagram illustrating a preferred embodiment of the image synthesis apparatus of the present invention;

图2是说明本发明的图像合成装置的另一较佳实施例的方框图；2 is a block diagram illustrating another preferred embodiment of the image synthesis device of the present invention;

图3是说明本发明中的图像显示控制装置的方框图；Fig. 3 is a block diagram illustrating an image display control device in the present invention;

图4是说明本发明中存储器位址合成装置的方框图；Fig. 4 is a block diagram illustrating a memory address synthesizing device in the present invention;

图5a是显示实施本发明时的一时序信号图；Figure 5a is a timing signal diagram showing the implementation of the present invention;

图5b是显示实施本发明时的另一时序信号图。Fig. 5b is another timing signal diagram showing the implementation of the present invention.

本发明为一图像合成装置，其经由图像数据所包含的外框数据来产生图像，外框数据是包括图像数据在屏幕的各水平扫描线上的起始位置及终止位置。请参阅图1，本发明的图像合成装置包括：一起始位置暂存器10，用以储存前述外框在一水平扫描线上的起始位置数据；一终止位置暂存器20，用以储存前述外框在前述水平扫描线上的终止位置数据；一水平位移暂存装置30，用以储存一水平位移数据；一第一加法器41，用以接收前述起始位置数据及前述水平位移数据，并在相加后输出为一第一位置数据；一第二加法器42，用以接收前述终止位置数据及前述水平位移数据，并在相加后输出为一第二位置数据；一水平位置显示装置50，用以对应于前述扫描线的水平位置而产生一水平位置信号；一位置比较器60，用以比较前述水平位置信号是否介于前述第一位置数据及前述第二位置数据之间，并且依据比较结果输出一位置指示信号VLD；一图像显示控制装置70，用以接收前述位置比较器60输入的位置指示信号VLD，藉以控制输出的图像数据。The present invention is an image synthesis device, which generates an image through frame data included in the image data. The frame data includes the start position and end position of the image data on each horizontal scanning line of the screen. Referring to Fig. 1, the image synthesis device of the present invention includes: a starting position register 10 for storing the starting position data of the aforementioned outer frame on a horizontal scanning line; an end position register 20 for storing Termination position data of the aforementioned outer frame on the aforementioned horizontal scanning line; a horizontal displacement temporary storage device 30 for storing a horizontal displacement data; a first adder 41 for receiving the aforementioned starting position data and the aforementioned horizontal displacement data , and output as a first position data after addition; a second adder 42, used to receive the aforementioned end position data and the aforementioned horizontal displacement data, and output as a second position data after addition; a horizontal position The display device 50 is used to generate a horizontal position signal corresponding to the horizontal position of the aforementioned scanning line; a position comparator 60 is used to compare whether the aforementioned horizontal position signal is between the aforementioned first position data and the aforementioned second position data , and output a position indication signal VLD according to the comparison result; an image display control device 70 is used to receive the position indication signal VLD input by the position comparator 60, so as to control the output image data.

请再参阅图2，本发明的图像合成装置的另一较佳实施例包括：一起始位置暂存器10，用以储存前述外框在一水平扫描线上的起始位置数据；一终止位置暂存器20，用以储存前述外框在前述水平扫描线上的终止位置数据；一水平位移暂存装置30，用以储存一水平位移数据；一水平位置显示装置50，用以对应于前述扫描线的水平位置而产生一水平位置信号；一加法器43，用以接收前述水平位移暂存装置30输入的水平位移数据及前述水平位置显示装置50输入的水平位置信号，并在相加后输出为一第三位置数据；一位置比较器60，用以比较前述第三位置数据是否介于前述起始位置数据及前述终止位置数据之间，并且依据比较结果输出一位置指示信号VLD；一图像显示控制装置70，用以接收前述位置比较器60输入的位置指示信号，藉以控制输出的图像数据。Please refer to Fig. 2 again, another preferred embodiment of the image synthesizing device of the present invention comprises: a starting position register 10, in order to store the starting position data of aforementioned outer frame on a horizontal scanning line; Temporary register 20, in order to store the end position data of aforementioned outer frame on aforementioned horizontal scanning line; A horizontal displacement temporary storage device 30, in order to store a horizontal displacement data; A horizontal position display device 50, in order to correspond to aforementioned The horizontal position of the scanning line generates a horizontal position signal; an adder 43 is used to receive the horizontal displacement data input by the aforementioned horizontal displacement temporary storage device 30 and the horizontal position signal input by the aforementioned horizontal position display device 50, and after adding The output is a third position data; a position comparator 60 is used to compare whether the aforementioned third position data is between the aforementioned initial position data and the aforementioned end position data, and output a position indicating signal VLD according to the comparison result; The image display control device 70 is used for receiving the position indication signal input by the position comparator 60, so as to control the output image data.

在前述的较佳实施例中，前述位置比较器60包括：一起始位置比较器61；一终止位置比较器62；一逻辑运算装置65，可为一及闸或其它等效的逻辑电路，用以将前述起始位置比较器61及终止位置比较器62的输出转变成一位置指示信号VLD。且在图1的实施例中，起始位置比较器61是用以比较前述第一位置数据及水平位置信号，终止位置比较器62是用以比较前述第二位置数据及水平位置信号。而在图2的实施例中，起始位置比较器61用以比较前述第三位置数据及起始位置数据，终止位置比较器62则用以比较前述第三位置数据及终止位置数据。In the aforementioned preferred embodiment, the aforementioned position comparator 60 includes: a starting position comparator 61; an end position comparator 62; a logic operation device 65, which can be an AND gate or other equivalent logic circuits, for In order to convert the output of the aforementioned start position comparator 61 and end position comparator 62 into a position indication signal VLD. In the embodiment shown in FIG. 1 , the start position comparator 61 is used for comparing the aforementioned first position data and the horizontal position signal, and the end position comparator 62 is used for comparing the aforementioned second position data and the horizontal position signal. In the embodiment shown in FIG. 2 , the start position comparator 61 is used to compare the aforementioned third position data with the start position data, and the end position comparator 62 is used to compare the aforementioned third position data with the end position data.

请参阅图3，前述图像显示控制装置70包括：复数个暂存器71至73，用以分别存放一颜色代码信号、一透明颜色代码信号及一反白控制信号REV；一信号合成装置74，用以接收前述反白控制信号REV及由前述位置比较器输出的位置指示信号VLD，并且在将其合成为一选择控制信号CC后输出；一颜色代码选择器76，可为一及闸或其它逻辑电路所所组成的线路，用以接收前述颜色代码信号及透明颜色代码信号，并受前述选择控制信号CC控制以输出一颜色代码或透明颜色代码；一透明判断装置78，可为一与非门(NAND)，用以判断颜色是否为透明，同时并可输出一透明指示信号。前述颜色代码及透明指示信号均输出至下一级的权位/混色电路(未显示于图中)。其中，前述复数个暂存器71至73的内容均由一中央处理器直接写入。Please refer to Fig. 3, the aforementioned image display control device 70 includes: a plurality of temporary registers 71 to 73 for respectively storing a color code signal, a transparent color code signal and a reverse white control signal REV; a signal synthesis device 74, It is used to receive the above-mentioned reverse white control signal REV and the position indicator signal VLD output by the above-mentioned position comparator, and output it after synthesizing it into a selection control signal CC; a color code selector 76, which can be an AND gate or other The circuit formed by the logic circuit is used to receive the aforementioned color code signal and the transparent color code signal, and is controlled by the aforementioned selection control signal CC to output a color code or a transparent color code; a transparent judging device 78 can be a NAND The gate (NAND) is used to judge whether the color is transparent, and can output a transparent indication signal at the same time. The aforementioned color code and transparency indication signal are both output to the weighting/color mixing circuit of the next stage (not shown in the figure). Wherein, the contents of the aforementioned plurality of registers 71 to 73 are directly written by a central processing unit.

请参阅图1及图2，其中，起始位置暂存器10及终止位置暂存器20的内容可由中央处理器直接写入或由存储器90中读取，故前述起始位置暂存器10可包含一第一暂存器12及一第三暂存器11，前述终止位置暂存器20可包含一第二暂存器21及一第四暂存器22。且前述第一暂存器12及第二暂存器21的内容乃是从存储器90中读出的，而前述第三暂存器11及第四暂存器22的内容则是由中央处理器直接写入的。因为起始位置暂存器10及终止位置暂存器20均各包含复数个暂存器，故必须使用一起始位置选择器15及一终止位置选择器25从复数个暂存器中选择输出一起始位置及一终止位置。Please refer to Fig. 1 and Fig. 2, wherein, the content of initial position temporary register 10 and end position temporary register 20 can be directly written into by central processing unit or read in memory 90, so aforementioned initial position temporary register 10 It may include a first register 12 and a third register 11 , and the aforementioned end position register 20 may include a second register 21 and a fourth register 22 . And the contents of the aforementioned first temporary register 12 and the second temporary register 21 are read from the memory 90, while the contents of the aforementioned third temporary register 11 and the fourth temporary register 22 are read by the central processing unit. written directly. Because the start position register 10 and the end position register 20 each comprise a plurality of registers, a start position selector 15 and an end position selector 25 must be used to select and output from the plurality of registers. a starting position and an ending position.

当起始位置暂存器10及终止位置暂存器20的内容为从存储器90中读出时，请参阅图1及图2，其更包括一存储器读取装置80及一存储器90。存储器读取装置80是经由一位址总线81及一数据总线91和存储器90连接，并且在水平扫描线开始扫描之前先读取存储器90内储存的外框数据。其读取的方式则是利用存储器读取装置80内的一位址合成装置产生一存储器位址，并且经由位址总线81将此位址送至存储器90中，然后存储器90便依据接收到的位址将其对应的外框数据经由数据总线91送出。请参阅图4，图4显示前述位址合成装置的结构，其包括：一基底暂存器82，用以储存外框数据在存储器上的基底位置；一屏幕垂直位置产生装置84，可为一计数器，用以相对于扫描线目前的位置而产生一垂直位置数据；一垂直位移暂存器86，用以储存使图像垂直移动的一垂直位移量；一运算装置85，用以对前述垂直位置数据以及前述垂直位移量执行相加或相减的运算；一位址产生装置88，用以将前述基底暂存器82以及前述运算装置85的输出合并以产生一存储器位址。其中，前述运算装置85可执行加和减运算，藉以产生镜面(Mirror)的显示效果。而前述位址产生装置88对基底暂存器82及运算装置85的输出的合并方式可为相加、串接(cascade)或选择其中一个输出。When the contents of the initial position register 10 and the end position register 20 are read from the memory 90 , please refer to FIGS. 1 and 2 , which further include a memory reading device 80 and a memory 90 . The memory reading device 80 is connected to the memory 90 via an address bus 81 and a data bus 91 , and reads the frame data stored in the memory 90 before the horizontal scanning line starts scanning. The way of reading is to use an address synthesis device in the memory reading device 80 to generate a memory address, and send this address to the memory 90 via the address bus 81, and then the memory 90 is based on the received memory address. The address sends out its corresponding frame data via the data bus 91 . Please refer to Fig. 4, Fig. 4 shows the structure of aforementioned address synthesizing device, and it comprises: a base register 82, in order to store the base position of outer frame data on memory; A screen vertical position generation device 84, can be a A counter is used to generate a vertical position data relative to the current position of the scanning line; a vertical displacement register 86 is used to store a vertical displacement amount for moving the image vertically; The data and the aforementioned vertical displacement are added or subtracted; an address generating device 88 is used to combine the outputs of the aforementioned base register 82 and the aforementioned computing device 85 to generate a memory address. Wherein, the aforesaid computing device 85 can perform addition and subtraction operations, so as to generate a mirror (Mirror) display effect. The address generation device 88 may combine the outputs of the base register 82 and the operation device 85 by adding, cascading, or selecting one of the outputs.

本发明中相关的时序信号显示于图5a及图5b，其中，图5a表示反白控制信号REV为低电位的情形，而图5b表示反白控制信号为高电位的情形。请参阅图5a，起始位置信号START是表示起始位置比较器10输出的比较结果，终止位置信号END是表示终止位置比较器20的输出的比较结果，VLD则为START信号和END信号在经过逻辑运算装置65运算后输出的位置指示信号，用以指出图像外框在水平扫描线上的起始点及终止点，COLOR表示由颜色代码选择器76输出的颜色代码，TRANSPARENCY表示由透明判断装置78输出的透明指示信号，其中，当TRANSPARENCY为高电位时表示其为透明。图5b类似于图5a，只是因反白控制信号不同而造成透明指示信号反相，并导致输出颜色代码数据改变。The timing signals related to the present invention are shown in FIG. 5a and FIG. 5b, wherein FIG. 5a shows the situation where the reverse white control signal REV is low, and FIG. 5b shows the situation when the reverse white control signal is high. Please refer to Fig. 5 a, the start position signal START is the comparison result of the output of the start position comparator 10, the end position signal END is the comparison result of the output of the end position comparator 20, VLD is the START signal and the END signal after the The position indication signal outputted by the logical operation device 65 after the operation is used to point out the starting point and the end point of the image frame on the horizontal scanning line, COLOR represents the color code output by the color code selector 76, and TRANSPARENCY represents the color code output by the transparent judging device 78. The output transparent indication signal, wherein, when TRANSPARENCY is high potential, it means that it is transparent. Fig. 5b is similar to Fig. 5a, except that the transparency indication signal is inverted due to the difference in the anti-white control signal, and the output color code data is changed.

虽然本发明以较佳实施例说明如上，然其并非用以限定本发明，因此本发明的保护范围当视后附的权利要求范围所界定者为准。Although the present invention is described above with preferred embodiments, it is not intended to limit the present invention, so the protection scope of the present invention should be defined by the appended claims.

Claims

1, a kind of image synthesizer can synthesize this image according to the outer frame data of an image, and via a horizontal scanning mode image is shown on the screen, it is characterized in that, comprising:

One initial position working storage is in order to store the start position data of aforementioned housing on a horizontal scanning line;

One final position working storage is in order to store the final position data of aforementioned housing on the aforementioned levels sweep trace;

One horizontal shift apparatus for temporary storage, the horizontal shift data that image level moved in order to storage;

One first adder in order to receiving aforementioned start position data and aforementioned levels displacement data, and is output as primary importance data after addition;

One second adder in order to receiving aforementioned final position data and aforementioned levels displacement data, and is output as a second place data after addition;

One horizontal level generation device is in order to produce a horizontal level signal corresponding to the horizontal level of aforementioned sweep trace;

One position comparer whether between aforementioned primary importance data and aforementioned second place data, and is exported a position indicative signal according to comparative result in order to comparison of aforementioned horizontal level signal;

One image display control apparatus in order to receive the position indicative signal of aforementioned location comparer input, is used the view data of control output.

2, a kind of image synthesizer can synthesize this image according to the outer frame data of an image, and via a horizontal scanning mode image is shown on the screen, it is characterized in that, comprising:

One horizontal shift apparatus for temporary storage is in order to store the horizontal shift data that image level is moved;

One totalizer in order to the horizontal shift data of reception aforementioned levels displacement apparatus for temporary storage input and the horizontal level signal of aforementioned levels position generation device input, and is output as one the 3rd position data after addition;

One position comparer whether between aforementioned start position data and aforementioned final position data, and is exported a position indicative signal according to comparative result in order to comparison of aforementioned the 3rd position data;

One image display control apparatus is in order to receive the position indicative signal of aforementioned location comparer input, so as to the view data of control output.

3, device as claimed in claim 1 is characterized in that, wherein, the aforementioned location comparer be in order to a horizontal level relatively whether between the reference position and final position of housing, comprising:

One initial position comparer is in order to comparison of aforementioned primary importance data and aforementioned levels position signalling;

One final position comparer is in order to comparison of aforementioned second place data and aforementioned levels position signalling;

One logical calculation device is transformed into a position indicative signal in order to the output with aforementioned reference position comparer and final position comparer.

4, device as claimed in claim 2 is characterized in that, wherein, the aforementioned location comparer be in order to a horizontal level relatively whether between the reference position and final position of housing, it comprises:

One initial position comparer is in order to comparison of aforementioned start position data and aforementioned the 3rd position data;

One final position comparer is in order to comparison of aforementioned final position data and aforementioned the 3rd position data;

5, device as claimed in claim 1 or 2 is characterized in that, wherein, aforementioned image display control apparatus comprises: a plurality of working storages, in order to deposit a color code signal, a transparent color code signal and an anti-white control signal respectively; One signal synthetic apparatus, in order to the position indicative signal that receives aforementioned anti-white control signal and export by the aforementioned location comparer, and after it being synthesized a selection control signal, export, one color code selector switch, in order to receiving aforementioned color code signal and aforementioned transparent color code signal, and be subjected to aforementioned selection control signal control to export a color code or a transparent color code.

6, device as claimed in claim 5 is characterized in that, more comprises a transparent judgment means, in order to when receiving aforementioned transparent color code, exports a transparent indicator signal.

7, device as claimed in claim 1 or 2, it is characterized in that, wherein, aforementioned reference position working storage comprises one first working storage, aforementioned final position working storage comprises one second working storage in order to store the start position data that reads from a storer, in order to store the final position data that read from aforementioned memory.

8, device as claimed in claim 7 is characterized in that, more comprises: a storer, in order to the outer frame data of store images; One address synthesizer, the housing memory of data address of desiring to read in order to generation; One address bus is sent in the aforementioned memory in order to the storer address that aforementioned address synthesizer is produced; One data bus is sent to aforementioned first working storage in order to the outer frame data that will produce corresponding to being sent to the storer address in the aforementioned memory by aforementioned address bus.

9, device as claimed in claim 8 is characterized in that, wherein, aforementioned address synthesizer comprises: a substrate working storage, in order to store the substrate location of outer frame data; One screen upright position generation device is in order to produce upright position data with respect to the present position of sweep trace; One perpendicular displacement working storage makes a perpendicular displacement amount of image vertical moving in order to storage; One arithmetic unit is in order to the computing that aforementioned upright position data and aforementioned perpendicular displacement amount are carried out addition or subtracted each other; One address generation device merges to produce a storer address in order to the output with aforementioned substrates working storage and aforementioned arithmetic unit.

10, device as claimed in claim 7 is characterized in that, wherein, aforementioned reference position working storage more comprises one the 3rd working storage, in order to store the start position data that is write direct by a central processing unit; Aforementioned termination working storage then more comprises one the 4th working storage, in order to store the final position data of being write direct by central processing unit.

11, device as claimed in claim 10, it is characterized in that, more comprise an initial position selector, in order to the start position data of selecting aforementioned first working storage or the start position data of aforementioned the 3rd working storage and by an initial choice of location signal controlling with the start position data of exporting aforementioned first working storage or the start bit data of aforementioned the 3rd working storage; An and final position selector switch, in order to selecting the content of aforementioned second working storage and aforementioned the 4th working storage, and select signal controlling with the final position data of exporting aforementioned second working storage or the final position data of aforementioned the 4th working storage by a final position.

12, a kind of image combining method, can be according to synthetic this image of the outer frame data of an image, and image is shown on the screen via a horizontal scanning mode, it is applicable to an image synthesizer, this device comprises at least one group of reference position working storage, in order to store the reference position of aforementioned housing data; At least one group termination position working storage is in order to store the final position of aforementioned outer frame data; One horizontal shift working storage is in order to store the horizontal displacement of earlier figures picture; One perpendicular displacement working storage is in order to store the perpendicular displacement amount of earlier figures picture; First adder in order to receiving the output of an aforementioned reference position working storage and aforementioned levels displacement working storage simultaneously, and is output as one first data information after addition; Second adder in order to receiving the output of an aforementioned final position working storage and aforementioned levels displacement working storage simultaneously, and is output as a second place data after addition; One horizontal level generation device is in order to respect to the horizontal level of one scan line on the screen and produce a horizontal level signal; One position comparer, in order to comparison of aforementioned horizontal level signal whether between aforementioned primary importance data and aforementioned second place data; One image display control apparatus is in order to receive the comparative result of aforementioned location comparer, the view data of control output; One storer is in order to store aforementioned outer frame data; One storage reading apparatus, its utilize a screen upright position and perpendicular displacement amount as index reading the outer frame data in the aforementioned memory, and the reference position and the final position of outer frame data is stored in respectively in aforementioned reference position working storage and the aforementioned final position working storage; It is characterized in that this kind method can adopt following three kinds of operations respectively:

(I) in aforementioned memory, read when outer frame data, corresponding to each bar sweep trace, the aforementioned memory reading device is given birth to a storer address according to a substrate location, aforementioned screen upright position and the perpendicular displacement volume production of outer frame data, to read in horizontal reference position and the horizontal final position on this sweep trace automatically, again through the position comparer relatively after output one position indicative signal, and produce figure output according to this, under this pattern, as long as the content of change horizontal shift working storage and perpendicular displacement working storage just can make figure move;

(II) in aforementioned memory, read when outer frame data, and corresponding to each bar sweep trace, the aforementioned memory reading device produces a storer address according to a substrate location of outer frame data, to read in horizontal reference position and the horizontal final position on this sweep trace automatically, again through the position comparer relatively after output one position indicative signal, and produce figure output according to this, under this pattern, mobile graphics needs to rewrite again the outer frame data in the storer between sweep trace is changed;

(III) when outer frame data when a central processing unit writes direct working storage, through the position comparer relatively after the outgoing position indicator signal, and produce figure output according to this, under this pattern, mobile graphics need be rewritten aforementioned reference position working storage and final position working storage again between sweep trace is changed content.

13, a kind of image combining method, can be according to synthetic this image of the outer frame data of an image, and image is shown on the screen via a horizontal scanning mode, it is applicable to an image synthesizer, this device comprises at least one group of reference position working storage, in order to store the reference position of aforementioned outer frame data; At least one group termination position working storage is in order to store the final position of aforementioned outer frame data; One horizontal shift working storage is in order to store the horizontal displacement of earlier figures picture; One perpendicular displacement working storage is in order to store the perpendicular displacement amount of earlier figures picture; One horizontal level generation device is in order to respect to the horizontal level of one scan line on the screen and produce a horizontal level signal; One totalizer in order to the horizontal displacement that receives aforementioned levels displacement working storage output simultaneously and the horizontal level signal of aforementioned levels lever position indicator output, and is output as one the 3rd position data after addition; One position comparer, in order to comparison of aforementioned the 3rd position data whether between aforementioned start position data and aforementioned final position data; One image display control apparatus is in order to receive the comparative result of aforementioned location comparer, the view data of control output; One storer is in order to store aforementioned outer frame data; One storage reading apparatus, its utilize a screen upright position and perpendicular displacement amount as index reading the outer frame data in the aforementioned memory, and the reference position and the final position of outer frame data is stored in respectively in aforementioned reference position working storage and the aforementioned final position working storage; It is characterized in that this method can adopt following three kinds of operations respectively:

(II) in aforementioned memory, read when outer frame data, and corresponding to each bar sweep trace, the aforementioned memory reading device produces a storer address according to a substrate location of outer frame data, to read in horizontal reference position and the horizontal final position on this sweep trace automatically, again through the position comparer relatively after output one position indicative signal, and produce figure output according to this, under this pattern, mobile graphics needs to rewrite again the housing data in the storer between sweep trace is changed;

14, as claim 12 or 13 described methods, it is characterized in that, can add an initial position selector again, in order to from aforementioned at least one group of reference position working storage, to select one group of output; And a final position selector switch, in order to from the working storage of aforementioned at least one group termination position, to select one group of output.