CN101064800A

CN101064800A - Method for displaying special sign on screen

Info

Publication number: CN101064800A
Application number: CNA2006100262828A
Authority: CN
Inventors: 田潇闻; 张曙阳
Original assignee: DONGJIE ELECTRICAL (CHINESE) Co Ltd; EAST KIT ELECTRIC (SHANGHAI) Co Ltd
Current assignee: DONGJIE ELECTRICAL (CHINESE) Co Ltd; EAST KIT ELECTRIC (SHANGHAI) Co Ltd
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-10-31

Abstract

The invention provides a method to display LOGO on screen, which includes following steps: provides LOGO with BMP format; LOGO with BMP format is converted into letter-library file; letter-library file is stored in EEPROM of television; when boot-strap starts, the program will read the letter-library file from EEPROM automatically, and the image data of letter-library file is displayed on screen according to lattice regulation. The invention uses the EEPROM besides main IC to store the LOGO display information, so it needs not to change the software of IC for different LOGO labels, and it is convenient to realize the version compatibility, and reduces the workload of designer.

Description

The method that on screen, shows special sign

[technical field]

The present invention relates to a kind of display packing, relate in particular to a kind of method of in the EEPROM of electronic equipment, storing the display message of special sign (as the LOGO of manufacturer) and on display screen, showing this special sign.

[background technology]

Present many electronic equipment manufacturer wishes that the own television set of being produced, computer etc. have the product of display device when states such as start, no signal blue screen, screen protection; the sign (LOGO) that can show this manufacturer or this brand; this sign may be a literal; also may be picture, or the combination of literal and picture.

With the television set is example, for the method that under some particular demands, on television screen, shows the LOGO of manufacturer, existing way is with the LOGO of the required demonstration mode by described point, is recorded in the character library of TV set software, directly calls demonstration and get final product when needs show.But this way exists following shortcoming:

1, loaded down with trivial details poor efficiency, the LOGO picture that general recommendation is used that is to say as the resolution of 96*40, need retouch into 3840 points, just can finish the making of a LOGO, and can not guarantee its correctness fully.

2, the wasting of resources

At a new LOGO, must revise the character library in the software, the software of promptly upgrading one time, and the software of use Different L OGO can't be compatible.This will cause the waste of designer's work resource, and the waste greatly of software version resource.

[summary of the invention]

The objective of the invention is at above-mentioned the deficiencies in the prior art, a kind of method that shows special sign on screen is provided, reducing designer's workload, and realize compatible at the software version of Different L OGO.

For achieving the above object, the present invention adopts following technical scheme: the method for the present invention's show label (LOGO) on screen comprises the steps: to provide the LOGO picture of a BMP form; Convert the LOGO picture of this BMP form to a font file; Again this font file is stored among the EEPROM of television set; When the starting up, program can read the font file among the EEPROM automatically, then the view data in the font file is presented on the screen according to the dot matrix rule.

Above-mentioned font file is meant a DRCS character set file, and it is the 12*10 dot array data that is made of 32 characters.This dot array data is made up of hexadecimal number, and in each hexadecimal number, high eight-bit writes down back eight pixels, low eight the first eight pixels of record, and digital 0 and 1 represent respectively foreground and background colour one of them.

Above-mentioned BMP format picture is by bitmap file head (bitmap-file header), message bit pattern head (bitmap-information header), color table (color table), and four parts of the array of bytes of definition bitmap are formed.

The step that described LOGO picture with this BMP form converts a font file to further comprises: step a. reads in the file header and the information header of this BMP picture; Step b. judges whether it is BMP file monochromatic, that do not have compression according to the file header and the information header that read in; Step c is selected the character library type according to the chip model of television set; Steps d. according to the character library type of being imported the BMP formatted data is changed into the hexadecimal DRCS data that are used to show that television set chip uses; And the DRCS data of step e. after with above-mentioned conversion export the file of suffix BIN by name to.

Step among the described EEPROM that this font file is stored in television set further comprises: the fixed area among the burned EEPROM of DRCS data file that the demonstration LOGO that is generated is required.

The step that described Automatic Program reads the font file among the EEPROM further comprises: Automatic Program reads the DRCS data file among the EEPROM, and is stored to the XDATA fixed area of main IC.

Described view data in the font file is comprised further that according to the step that the dot matrix rule is presented on the screen DRCS character with 32 12*10 dot matrix is presented on the screen according to rule.

Compared with prior art, the present invention can discern the BMP file automatically, and convert thereof into needed font file, use main IC erasable memory device (as EEPROM) in addition to store the LOGO display message subsequently, need not to revise software, accomplish edition compatibility, significantly reduced designer's workload.

[description of drawings]

Fig. 1 is the corresponding relation schematic diagram between DRCS file and the BMP lattice file in one embodiment of the invention;

Fig. 2 is to be the flow chart of DRCS file with the BMP file conversion according to one embodiment of the invention; And

Thereby Fig. 3 calls DRCS data among the EEPROM show LOGO on screen flow chart according to one embodiment of the invention.

[embodiment]

The present invention mainly is after the LOGO picture that exists with the BMP form that provides according to manufacturer converts font file (BIN file) in the method that shows special sign on the screen, this font file is stored among the EEPROM (electricallyerasable ROM (EEROM)) of this machine, when the starting up, program can read out in the data that the starting stage that brings into operation will be stored among the EEPROM, and the image information according to the font file record shows the LOGO picture on screen then.

The present invention mainly comprises automatic identification BMP file and converts it to the step of BIN file, and with the step of BIN file storage in EEPROM.

Introducing above-mentioned in detail below in conjunction with a specific embodiment is the principle and the execution in step of BIN file with the BMP file conversion.

BMP (Bitmap-File) graphic file is the graphics file format that Windows adopts, and all imgae processing softwares that move under the Windows environment are all supported the BMP types of image file formats.Each image of Windows internal system is drawn operation all based on BMP.Generally speaking, the LOGO picture making is fixedly dot matrix (96*40 for example looks the difference of the character library of using and variation to some extent) the BMP picture of monochromatic (black and white).The BMP picture is made up of four parts: bitmap file head (bitmap-file header), message bit pattern head (bitmap-information header), color table (color table), and the array of bytes of definition bitmap.

The LOGO dot matrix that on screen, can show, to adopt the Philip TV chip UOC series of generally using at present to be example, it is with DRCS (Dynamically Re-definable CharacterS) representation of file, that is, LOGO dot matrix that can directly show on screen and the point-to-point file of DRCS have one-to-one relationship.DRCS is that a group of being provided of UOC series TV chip dynamically can redefine character set, and it has 32 characters, is generally the dot matrix of 12*10, can set in advance.When program start DRCS redefined function, this group character can be redefined.

See also shown in Figure 1, its demonstration be the relation of LOGO between demonstration dot matrix on the screen and DRCS character definition mode.Show LOGO as shown in Figure 1, its corresponding DRCS array (respectively with binary system and hexadecimal representation) is as follows, and wherein background colour is represented in the space, and X represents foreground.

Actual array 2 systems 16 systems

/* */ 00000000，00000000 0x00，0x00，

/* XXXXXXXXXXX*/ 11111111，00000111 0xFF，0x07，

/* XXXXXXXXXXXX*/ 11111111，00001111 0xFF，0x0F，

/* XXXXXXXXXXXXX*/ 11111111，00011111 0xFF，0x1F，

/* XXXXXXXXXXXXXX*/ 11111111，00111111 0xFF，0x3F，

Each word (WORD) writes down the every capable lattice information of this character: upper byte (BYTE) writes down 8 pixels behind this row, and low byte writes down preceding 8 pixels of this row, 1 expression foreground, 0 expression background colour, that is, and with 16 system array { 0x00,0x00,0xFF, 0x07,0xFF, 0x0F, 0xFF, 0x1F, 0xFF, 0x3F} can represent above dot matrix, the formed file of this 16 system array is hexadecimal DRCS file.

See also shown in Figure 2 again, desire is direct data presented on screen with the BMP file conversion, only need according to above-mentioned encoding law, view data in picture file part is got final product by the view data that certain rule is converted to DRCS file (hex file) use, and its execution in step is as follows:

Step 11, under CMD window (DOS environment), carry out the Bmp2Logo.exe file, the filename of prompting input one BMP formatted file, user-in file name;

Step 12, judge whether this document exists; If exist, then advance to step 13; If do not exist, then withdraw from after the execution in step 19;

Step 13, the file header that reads in this BMP picture and information header, wherein file header comprises file sign, file size, data-bias and information such as figure leaf length, width, and information header comprises information such as pixel figure place (color number), compression explanation, view data size, image level resolution and vertical resolution;

File header and information header that step 14, basis are read in judge whether it is BMP file monochromatic, that do not have compression, if, then advance to step 15, if not, then withdraw from after the execution in step 16;

Step 15, select the character library type according to the chip model of television set;

Step 16, prompting file error;

Step 17, the BMP formatted data is changed into the DRCS data that are used to show that television set chip uses according to the character library type of being imported;

Step 18, the DRCS data after the above-mentioned conversion are exported to the file of suffix BIN by name;

Step 19, prompting input error.

Next, execution is above-mentioned with the step of BIN file storage in EEPROM.After the step S18, the fixed area among the burned EEPROM of the DRCS data file that the demonstration LOGO that is generated is required (.BIN file), debug without any influence for the clear area of reservation and to other each project in this zone.

Fig. 3 has shown according to one embodiment of the invention, when start or no signal blue screen, shows the implementation of LOGO on screen.

After the start, execution in step 21, Automatic Program read the DRCS data file among the EEPROM, and are stored to XDATA fixed area (the XDATA fixed area of main IC recommend 1024BYTE as original position, but this position can be changed); Then, execution in step 22, judge according to the setting of television set whether start need show LOGO, if then advance to step 23, otherwise withdraw from flow process; The DRCS character of step 23,32 12*10 dot matrix that will read is presented on the screen according to rule; Afterwards, execution in step 24, judge that LOGO shows and whether meet the requirements of the time; If then advance to step 25, remove LOGO; Otherwise, then be back to step 23; After the step 25 execution in step 26, judge whether television set no signal blue screen state occurs, if the DRCS character of 32 12*10 dot matrix that then advance to step 27, will read is presented on the screen according to rule; Otherwise withdraw from flow process; Execution in step 28 after the step 27, judge whether that the signal of television image inserts,, then in step 29, remove LOGO, otherwise be back to step 27, continue to show LOGO if having.

To sum up, the invention provides and a kind ofly show that on screen the method for special sign is main, its LOGO picture by BMP form that manufacturer is provided converts to and is fit to the hexadecimal font file that shows, and this font file is stored among the EEPROM of this machine, when the starting up, program can be read the data among the EEPROM automatically, and the image information with this data record shows the LOGO picture according to a transformation rule of stipulating on screen then.

Advantage applies of the present invention exists: owing to adopted the External memory equipment EEPROM irrelevant with main IC, Therefore software version can be completely unified, so that the demonstration of LOGO and software are separate, need not for whenever One new LOGO and change software version can not cause the waste of version resource, has avoided simultaneously design The work of the repeatability that the developer is tediously long.

Claims

1. the method for a show label on screen (LOGO), it at first provides the LOGO picture of a BMP form; It is characterized in that: convert the LOGO picture of this BMP form to a font file; Again this font file is stored among the EEPROM of television set; When the starting up, program can read the font file among the EEPROM automatically, then the view data in the font file is presented on the screen according to the dot matrix rule.

2. as claimed in claim 1 on screen the method for show label (LOGO), it is characterized in that: described font file is meant a DRCS character set file.

3. as claimed in claim 2 on screen the method for show label (LOGO), it is characterized in that: described DRCS character set file is the 12*10 dot array data that is made of 32 characters.

4. as claimed in claim 3 on screen the method for show label (LOGO), it is characterized in that: described dot array data is made up of hexadecimal number, in each hexadecimal number, high eight-bit writes down back eight pixels, low eight the first eight pixels of record, and digital 0 and 1 represent respectively foreground and background colour one of them.

5. as claimed in claim 2 on screen the method for show label (LOGO), it is characterized in that: described BMP format picture is by bitmap file head (bitmap-file header), message bit pattern head (bitmap-information header), color table (color table), and four parts of the array of bytes of definition bitmap are formed.

6. as claimed in claim 5 on screen the method for show label (LOGO), it is characterized in that: the step that described LOGO picture with this BMP form converts a font file to further comprises:

Step a. reads in the file header and the information header of this BMP picture;

Step b. judges whether it is BMP file monochromatic, that do not have compression according to the file header and the information header that read in;

Step c is selected the character library type according to the chip model of television set;

Steps d. according to the character library type of being imported the BMP formatted data is changed into the hexadecimal DRCS data that are used to show that television set chip uses; And

The DRCS data of step e. after with above-mentioned conversion export the file of suffix BIN by name to.

7. as claimed in claim 6 on screen the method for show label (LOGO), it is characterized in that: the step among the described EEPROM that this font file is stored in television set further comprises: the fixed area among the burned EEPROM of DRCS data file that the demonstration LOGO that is generated is required.

8. as claimed in claim 2 on screen the method for show label (LOGO), it is characterized in that: the step that described Automatic Program reads the font file among the EEPROM further comprises: Automatic Program reads the DRCS data file among the EEPROM, and is stored to the XDATA fixed area of main IC.

9. as claimed in claim 2 on screen the method for show label (LOGO), it is characterized in that: described view data in the font file is comprised further that according to the step that the dot matrix rule is presented on the screen DRCS character with 32 12*10 dot matrix is presented on the screen according to rule.