CN1078034C

CN1078034C - Method of displaying specific characters or image on TV screen

Info

Publication number: CN1078034C
Application number: CN98111842A
Authority: CN
Inventors: 郑光清; 陈宁; 张继涛; 贾汇东; 陈涛
Original assignee: CHANGHONG ELECTRONIC GROUP CORP SICHUAN
Current assignee: CHANGHONG ELECTRONIC GROUP CORP SICHUAN
Priority date: 1998-01-26
Filing date: 1998-01-26
Publication date: 2002-01-16
Anticipated expiration: 2018-01-26
Also published as: CN1199985A

Abstract

The present invention relates to the field of TV set screen display. The traditional TV set remote control is usually to realize directly related functions with TV remote control, such as displaying the change of TV channel numbers, the condition of volume change, etc. The present invention fully utilizes the potential functions of a CPU, a CGROM and an EEPROM in the TV set, and screen display is applied to a new field, namely that specific characters and images are displayed. The present invention has two display forms which are fixed content display and variable content display. If necessary, a user can self call for display at any time by utilizing a remote controller or keys of the TV set.

Description

The method that shows specific character or image on a kind of video screen

The present invention relates to the screen display field of colour TV, specifically refer to a kind of method that shows specific character or image.

In daily life, television set one of the household supplies that are absolutely necessary.Whenever celebrate a festival or run into the celebrating thing of marriage year after year, people always like carrying out request program by TV station.TV station produces the speech of congratulation according to program request person's requirement and mixes the beautiful in addition song of celebrating picture and play back by propagation ducts, is presented on huge numbers of families' the video screen, makes in program request person's the family and brims with dense celebrating atmosphere.Yet the staff who makes these specific characters or image and be TV station is made specially by specific caption production device, considerably wastes time and energy, and the some singer must pay the purpose that certain expense just can reach requesting song to TV station simultaneously.And other are not put the singer, TV station is play this type of program but lose interest in, but but have no way out.So, a kind of method can be arranged, allow TV user just can produce the speech of congratulation and the picture that shows celebrating happy blessing and so on easily on can the video screen in the own home by button operation simply.Like this, neither can influence other TV user, can reach celebrating effect again, and without defrayment.

The purpose of this invention is to provide a kind of video screen and show the specific character or the method for image; The objective of the invention is to make TV user can save expenditure, and can not influence other people, can not disturbed again by other people; The present invention also aims to make the TV user specific character or the image of the displaying contents of selection oneself needs on video screen easily; Purpose of the present invention shows on video screen after being to make TV user can select specific character or image to be made up easily again.

The object of the present invention is achieved like this.At first selected be commonly used to represent celebrating, wish, the everyday character and the expression of blessing and so on are subordinate to, the address of kinship is made into specific character with word, will be commonly used to represent celebrating and so on mascot and have the logo of specific meanings to be made as specific image.Produce these specific characters or image is stored in its curing in the character pattern memory (CGROM) by programming, the address of specific character is stored in that electricity can be wiped and programmable read only memory (EEPROM) in.When needs show, send call instruction with the new function key of remote controller or with this machine button, central processing unit (CPU) in the television set is read the address of calling character or image according to the instruction of calling from EEPROM, and finds corresponding character or image according to this address in CGROM.By the character generator device, produce character R, G, B signal, again through apparatus for processing of video signals, character or image are presented on the screen.

Fig. 1 is a circuit diagram of the present invention

Fig. 2 is a character displaying principle circuit block diagram of the present invention

Fig. 3 is the width of cloth screen picture schematic diagram that the embodiment of the invention 1 shows immobilized substance

Fig. 4 is another width of cloth screen picture schematic diagram that the embodiment of the invention 1 shows immobilized substance

The present invention is described in further detail below in conjunction with accompanying drawing of the present invention.

When specific character or image were the content of set form, its storage call method was: 1. the specific character that will make by programming or image solidify and are stored in the character pattern memory (CGROM); 2. when needs call, the user only needs to send call instruction with certain the specific X key or the corresponding button of this machine of remote controller, CPU in the television set reads the address of calling character or image according to call instruction from EEPROM, and finds corresponding character or image according to this address in CGROM.By the character generator device, produce character R, G, B signal, again through apparatus for processing of video signals, character or image are presented on the screen.

When specific character or image are the free content of user, the method that its storage is called is: 1. the specific character that will make by programming or image solidify and are stored in the character pattern memory (CGROM), the address of specific character is stored in that electricity can be wiped and programmable read only memory (EEPROM) in.2. when needs called, the user only need start new function key menu in the television set by the X key, shows candidate character or image on the screen; And instructs cursor appears; 3. after selected content, central processing unit (CPU) is stored in the address of selected character or image among the EEPROM; When 4. needing to call, the central processing unit (CPU) in the television set is read be called character or image according to the instruction of calling from EEPROM address, and in CGROM, find corresponding character or image according to this address.By the character generator device, produce character R, G, B signal, again through apparatus for processing of video signals, character or image are presented on the screen.

The character that television set is shown is stored among the CGROM (Character Generate Rom character pattern generation memory)." display key " on using a teleswitch (hereinafter to be referred as the D key) is when calling this Presentation Function, central processing unit is through after handling the signal that remote control transmitter sent, identify this call instruction, from CGROM, take out relevant character then, by shielding character generation device, produce character R, G, B signal,, on picture tube, show by apparatus for processing of video signals.Synchronizing signal V among Fig. 1 (vertical synchronizing signal) and H (horizontal-drive signal) provide necessary sequential for the demonstration of character.When specific character or image were the free content of user, the selected character of user oneself all can be stored among the EEPROM in the address of CGROM.When needing to show, then find corresponding character by its address.

For example: following four characters and its address in CGROM:

Character: wish that you are happy

Address: 01H 0BH 1AH 1FH

After the user keys in above four words, 01H will be stored among the EEPROM to four addresses of 1FH, and when needs show, central processor CPU will be read this four addresses from EEPR0M, and find corresponding character to be presented on the screen in view of the above in CGROM.

The character displaying principle is as described below.

Fig. 2 is a character displaying principle block diagram.Character display random access memory district (VRAM) divides character logic viewing area and Liang Da district, character attibute memory block.Character physics viewing area on the corresponding video screen in character logic viewing area, and the property store district stores foreground, background colour, size and other the feature code etc. of current demonstration row's character.The dot array data of all characters has been solidified in character pattern data ROM district (CGROM).Property control circuit (Attribute Control) is decoded to the attribute codes in VRAM property store district or the logic viewing area.CPU writes to corresponding address, logic viewing area by internal bus (Internal Bus) to be needed the CGROM of character display address or writes attribute codes to the property store district.CGROM deciphers according to the address of logic viewing area store character among the VRAM, take out the dot array data of respective symbols then, serial is sent in the Alphabetic Shift register, and the code of the intercharacter attribute change of storing in attribute codes that the current demonstration that the property control circuit is stored VRAM property store district is arranged or the logic viewing area is decoded, both in character three primary colors combinational circuit (RGBL Composition) carries out a series of logical operations, characterize character color thereby produce, the primary colour signal RGB of features such as size and brightness blanking signal Blanking thereof, handling the primary colours RGB of back output character and blanking pulse signal through italic/priority control circuit (Italic/PolarityControl) again, to remove to drive picture tube CRT apparent.The character clock phase-locked loop of being made up of jointly character phase demodulation, character clock voltage controlled oscillator (Oscillation Circuit), line synchronizing signal (Horizontal Synchronization Signal) and filter (FILT) (PLL) produces the character pattern generation clock that is synchronized with line frequency.This clock is given the basic signal of VRAM, RGBL combinational circuit, Alphabetic Shift circuit and italic/when priority control circuit etc. provides character synchronous, so that character can be stablized, synchronously be presented on the screen.

Embodiment 1

Show the specific character or required remote controller or this machine function key of image of immobilized substance, a certain particular key is referred to as the X key herein.Its operation and showing below.

For the first time press the X key, image will occur as Fig. 3

For the second time press the X key, the image of Fig. 4 then occurs

Press the X key for the third time, all images disappears

Embodiment 2

The specific character of demonstration immobilized substance or image manipulation are with embodiment 1, and its difference is can show the picture that three width of cloth are different by four reduction of X key.

According to same principle, can make the image of the above immobilized substance of 4 width of cloth, only need the support of hardware, be to realize in theory, when practical application, should take all factors into consideration cost, profit and user's ability to bear.

Embodiment 3

The interface system schematic diagram that shows free content

The function key volume increasing-and-decreasing key (V-/V+) of the remote controller that one screen display is required, program fluctuation key (P-/P+), above quadruple linkage in the character library display menu, control the moving direction of cursor on screen.The direction of its control is: V-(left side)/V+ (right side), P+ (on)/P-(descending).Display key (hereinafter to be referred as the D key) is used for the storage of selected term and calls.On remote controller, increase " new function " key (also can utilize the expanded application of original button),, when showing character library, turn over the usefulness of screen for showing the key of using of new function menu accent on the screen.

Two operations and demonstration

Below to show that " happy birthday to wish daughter " is the example explanation.

In " new function " menu, design " selection term " option, video screen is as follows:

New function

Select term

Moving cursor is selected to importing term, and it is as follows to enter a character library display frame:

Wish and happily congratulate newly

The auspiciousness happiness birthday wedding of making a good deal of money

Having longevity, everything is just fine

Daughter son father brother

During beginning, the background colour cursor is just in time on " wishing " word.After pressing the D key, promptly selected the font address of " wishing " word.Key in P-then, cursor is moved down into " woman " word.By that analogy, till selecting all words of input, by " new function " key, withdraw from input system then.Press the D key afterwards again, on the fluorescent screen if any following demonstration:

Wish daughter happy birthday that this brief note will continue to show, until press the D key again, till the elimination screen display.This opening character library can comprise Chinese character commonly used and letter etc. as far as possible.And, when stored word symbol one screen can't show, can be by " new function " key, under this state, this key will make character library down turn over a screen.

The present invention does not influence the normal play of former TV programme when showing specific character or image.

Adopt the television set of the method manufacturing that shows specific character or image on a kind of video screen of the present invention, literal or image that TV user can be selected oneself to like at home easily are presented on the video screen, so just can not use TV station just can realize and the request program similar effects, promptly reduce expenses, can not disturb other people again.If the TV of every family can both have these functions, so just can not disturbed by other people request program, this has also just realized purpose of the present invention.

Like this, the user just can utilize the content that remote controller or this machine button is selected oneself at any time to be needed according to the needs of oneself, is presented on the video screen.

The present invention can make the character or any position of framing on television screen of being done by design remote control software.Its employed programming language can be the programming language that the CPU in the television set can use.The CPU that realizes this function has bigger character memory space and the screen display function that enriches and will select the character address of input to be stored among the EEPROM.

Adopt television set of the present invention, the character of the content of its specific curing and the quantity of image can be according to the memory capacity decisions of the CGROM in the television set.

According to same principle, in the VCD machine, can utilize CPU, CGROM, EEPROM and remote controller or corresponding button in the former machine to adopt above similarly method, can realize character or the image that demonstration is specific on the television set of above Presentation Function not possessing.

Claims

1. show the method for specific character or image on the video screen, it is characterized in that described specific character or image user can be free, the method that its storage is called is:

1. make by programming, expression is celebrating, wish, the specific character of blessing and so on or image solidify and be stored in the character pattern memory, with its address be stored in electricity can wipe with programmable read only memory in;

2. when the required content of needs input user oneself, the user only need start respective menu in the television set by editing key, demonstrates candidate character or image on the screen, and instructs cursor occurs;

3. behind user's chosen content, central processing unit the address of selected character or image be stored in electricity can wipe with programmable read only memory in;

4. when needs show, new function key or this machine button with remote controller send call instruction, central processing unit can be wiped the address of reading selected character or image with programmable read only memory according to the instruction of calling from electricity in the television set, and finds corresponding character or image according to this address in the character pattern memory; By the character generator device, produce character R, G, B signal, again through apparatus for processing of video signals, character or image are presented on the screen.