CN2297763Y - TV Study drawing board with voice function - Google Patents
TV Study drawing board with voice function Download PDFInfo
- Publication number
- CN2297763Y CN2297763Y CN 97221280 CN97221280U CN2297763Y CN 2297763 Y CN2297763 Y CN 2297763Y CN 97221280 CN97221280 CN 97221280 CN 97221280 U CN97221280 U CN 97221280U CN 2297763 Y CN2297763 Y CN 2297763Y
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- drawing board
- board
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Abstract
The utility model relates to a TV study drawing board with voice function, comprising a board main body and a drawing pen, wherein, a pen input board made of special rubber sheets, a plurality of function selecting keys, an input confirming key, a power switch, a reset key, an A/V output port and an extending interface are arranged on the board main body for drawing. The input of a central processing unit of a main control circuit in the board main body is connected with an interface circuit of the drawing board, and the output of the central processing unit of the main control circuit is connected with a video output interface and a voice output interface. The central processing unit is also connected with a memory circuit and an expanding port circuit. The pen input board is made of two layers of the special rubber sheets printed with conducting wires. Wire lines of the two layers of the rubber sheets are vertically crossed and stacked. Except a cross point, the rubber sheets are glued by insulating glues. The cross point does not contact with conduction, and a hard board is arranged below the rubber sheets for fixing. The utility model displayed by a TV or a monitor has the function of instant drawing, edit, voice prompt, education, entertainment, etc.
Description
The utility model relates to a kind of study drawing board with phonetic function that utilizes televisor as display device.
Existing electronic palette system is based on computer system more.Utilize mouse, keyboard or writing board for computer cooperate certain mapping software to realize not having the paper mapping, revise graphics operations.It is easy to use, and clear picture has improved work efficiency greatly.Therefore but it must utilize computer system, costs an arm and a leg, and is bulky, and the not too suitable general common people family that enters especially is not suitable as a kind of exploitation infant intelligence of family expenses, the instrument of education, amusement.
The purpose of this utility model be exactly provide at the deficiency of prior art a kind of have phonetic function, cost lower, multiple functional, utilize the multi-functional TV drawing board of televisor as display device.It both can be used to carry out the drafting of figure, revise, show, have phonetic function again, cooperate corresponding software to realize education, amusement function, be particularly suitable as and a kind of the child carried out intelligence development, the instrument of knowledge education also is applicable to scientific and technical personnel, and the industrial art personnel are used for drawing varied engineering drawing and design drawing or the like.
The purpose of this utility model is achieved in that a kind of TV study drawing board with phonetic function, and it comprises plate body and paintbrush; Wherein said drawing board body is provided with a tablet of being made by special purpose film, a plurality of function selecting keys, input validation key, reset key, power switch, A/V output port and expansion interface; The input of governor circuit central processing unit connects the drawing board interface circuit, and output connects video output interface and audio output interface; Central processing unit also is connected to main memory circuit, the Extended Capabilities Port circuit; Tablet is made by the two-layer special purpose film that is printed on lead; It is relative that two films are pressed circuit surface, stacks with the circuit square crossing, and bonding with insulating gel except that the point of crossing between the film, the point of crossing does not contact conducting, and attached hard plate is fixed under the film.
Described central processing unit output also can connect a speech processing circuit, and speech processing circuit connects the sound amplifying circuit to audio output interface.
By NS01, form by the Y direction input latch circuit that 74LS138 forms by one group of 4021 directions X sweep circuit of forming and one group for described drawing board input circuit.
The central processing unit of described drawing board can adopt 8 micro computer master chip UM6576 or UM6561.
The utility model advantage is: simple in structure, easy to use, and stable performance, function is more, and price is cheap, is suitable for average family and uses.
Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.
Fig. 1 is an outward appearance front view of the present utility model.
Fig. 2 is a drawing board structural representation of the present utility model.
Fig. 3 is that system of the present utility model constitutes block diagram.
Fig. 4 is one of a kind of preferred embodiment CPU (central processing unit) circuit theory diagrams of the present utility model.
Fig. 5 is a kind of preferred embodiment drawing board input processing module Y direction latch cicuit schematic diagram of the present utility model.
Fig. 6 is a kind of preferred embodiment drawing board input processing module directions X sweep circuit schematic diagram of the present utility model.
Fig. 7 is a kind of preferred embodiment circuit control interface of the present utility model, power supply, reset circuit schematic diagram.
Referring to Fig. 1, the utility model is made up of drawing board main body 1 and paintbrush 2, and drawing board main body 1 is provided with drawing board input film 3, function selecting key 4, input validation key 5, expansion interface 6, video output 7, audio frequency output 8, power input hole 9, pencil box 10, power light 11, reset key 12 parts such as grade.In 1 indoor design of drawing board main body governor circuit is arranged, drawing board input film, drawing board input interface circuit, external expansion interface circuit etc.
Referring to Fig. 2, the utility model is two customized films by the input film of drawing board main body 1.A slice is printed on 60 parallel exposed circuits, and a slice is printed on 80 parallel exposed circuits.It is relative that two films are pressed circuit surface, stacks with the circuit square crossing.Bonding with insulating gel except that the point of crossing between the film, do not contact conducting with the point of crossing and be as the criterion.Below two films (being the drawing board back side) lining with smooth abundant needle plate or plastic plate, above (being the drawing board front) be an input field.When with paintbrush contact drawing board, the X of corresponding coordinate point and Y direction line conduction, the TV screen relevant position promptly demonstrates the image of paintbrush; When pressing the input validation key, then on screen, draw a point; By paintbrush continuous moving onboard, and press acknowledgement key simultaneously always, can realize the drafting of line segment.
Shown in Fig. 3,4,7, the input of the central processing unit of the utility model governor circuit connects the drawing board interface circuit, and output connects video output interface and audio output interface; Central processing unit also is connected to main memory circuit, the Extended Capabilities Port circuit.
The central processing unit of a preferred embodiment of the present utility model adopts by the integrated micro computer master chip UM6576 of 65 serial central processing units, speech processing circuit and the video processor of 8 bits.CPU adopts 6576 the master chip include 8 bit processors and video processor PPU, can carry out the duplex operation of program and image simultaneously, and interface control circuit is carried out the control to expansion interface, drawing board input processing circuit under the control of CPU.Two 74LS157 do address extension, connect the interface of program card, can finish the compatibility of recreation and learning software.Central processor CPU output also can meet a speech processing circuit MSP50X33, and speech processing circuit MSP50X33 meets sound amplifying circuit LM386 again, to audio output interface.The utlity model has abundant voice suggestion or functions thereby make.
Referring to Fig. 5,6, the input processing circuit of drawing board of the present utility model is divided into directions X and Y direction two parts.
On the Y direction, design is by by 1 74LS138 and 8 input latch circuits that the cycle counter chip is formed.CPU provides two address ports and three address wires of A0-A2.What this circuit mainly was responsible for 80 lines of film directions X follows position, position and Protection Counter Functions.Wherein Fig. 5 is the schematic diagram of the TV drawing board drawing board input processing module Y of system direction input circuit of the present utility model.8 chips that are denoted as NSO are counting and decoding follower among the figure.74S138 is a 3-8 line code translator.CPU is AO by the address is hanged down 3, A1, and the assignment of A2 circulates and makes 8 counters carry out counting operations, passes through the output of 8 counters afterwards to 1
*10
*The 8 line cycle set of totally 80 directions Xs.Counter also is provided with CLR zero clearing port, and CPU realizes 10 by making an address port and cooperating of 74LS138 corresponding counter O reset output
*Article 8, the circulation of circuit is clear.
On the Y direction, as shown in Figure 6, design is by the 8 4021 input scan circuit of forming.CPU provides data bus and an address end control line.This circuit mainly is responsible for the circulating sampling of 60 lines of film Y direction, is sent to the task of data bus.8 4021 is 8 bit shift register among the figure, and the P/S end is set to " 1 ", promptly is operated in parallel mode.CPU holds and the P/S end at appropriate gating 4021LLK on opportunity by two address ports, and circulation obtains Y direction 1
*8
* Article 10, the immediate status of line in conjunction with this directions X circuit set constantly and clear position situation, obtains the state of one group of coordinate of drawing board.
CPU promptly is under the support of above-mentioned drawing board input processing circuit, obtains the coordinate of corresponding moment paintbrush by the drawing board status information that difference is constantly fed back from X, Y direction, and offers CPU and carry out image output and handle.
Central processing unit that the utility model adopts integrated sound circuit module, it exports direct sending and receiving acoustic device, and makes the drawing board system by outside sound-producing device, when painting and moving all kinds of learning software, can send various as prompting, teach, differentiate voice messagings such as help, enriched systemic-function, it is easier that the user is operated, convenient, improved use interest.
TV drawing board of the present utility model by software design multiple function, and be defined in each function key.Select comprising paintbrush: carse, medium and small; Instrument is selected: rubber, scissors, stickup; Color is selected: graphic color, background color; The internal memory figure; Automatic mapping: draw circle, line, rectangle, functions such as triangle; The function that studies painting with the aid of pictures: the built-in multiple figure of drawing board, pattern faces mould for the user.
Output of the present utility model adopts audio/video to separate output, can directly meet other and use with the AV port of looking, listen equipment.The RF input end that also can an external radio-frequency modulator connects people's television equipment uses.
TV drawing board of the present utility model has also designed 60PIN peripheral hardware expansion interface and control circuit, can be used to the usefulness of external other external units or software and function or memory upgrade.
Claims (4)
1, a kind of TV study drawing board with phonetic function, it comprises plate body and paintbrush; It is characterized in that: described drawing board body is provided with a tablet of being made by special purpose film, a plurality of function selecting keys, input validation key, reset key, power switch, A/V output port and expansion interface; The input of governor circuit central processing unit connects the drawing board interface circuit, and output connects video output interface and audio output interface; Central processing unit also is connected to main memory circuit, the Extended Capabilities Port circuit; Tablet is made by the two-layer special purpose film that is printed on lead; It is relative that two films are pressed circuit surface, stacks with the circuit square crossing, and bonding with insulating gel except that the point of crossing between the film, the point of crossing does not contact conducting, and attached hard plate is fixed under the film.
2, the TV study drawing board with phonetic function according to claim 1, it is characterized in that: described central processing unit output also can connect a speech processing circuit, and speech processing circuit connects the sound amplifying circuit to audio output interface.
3, the TV study drawing board with phonetic function according to claim 1 is characterized in that: described drawing board input circuit by one group of 4021 directions X sweep circuit of forming and one group by NS01, the Y direction input latch circuit composition that 74LS138 forms.
4, the TV study drawing board with phonetic function according to claim 1, it is characterized in that: the central processing unit of described drawing board can adopt 8 micro computer master chip UM6576 or UM6561.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221280 CN2297763Y (en) | 1997-07-15 | 1997-07-15 | TV Study drawing board with voice function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221280 CN2297763Y (en) | 1997-07-15 | 1997-07-15 | TV Study drawing board with voice function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297763Y true CN2297763Y (en) | 1998-11-18 |
Family
ID=33936721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221280 Expired - Fee Related CN2297763Y (en) | 1997-07-15 | 1997-07-15 | TV Study drawing board with voice function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105407303A (en) * | 2015-10-27 | 2016-03-16 | 深圳创维数字技术有限公司 | Forced restart method for digital television receiving terminal and digital television receiving terminal |
-
1997
- 1997-07-15 CN CN 97221280 patent/CN2297763Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105407303A (en) * | 2015-10-27 | 2016-03-16 | 深圳创维数字技术有限公司 | Forced restart method for digital television receiving terminal and digital television receiving terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |