CN2807611Y - Non-mechanical inductive press-key of TV set and the TV set - Google Patents
Non-mechanical inductive press-key of TV set and the TV set Download PDFInfo
- Publication number
- CN2807611Y CN2807611Y CN 200520109818 CN200520109818U CN2807611Y CN 2807611 Y CN2807611 Y CN 2807611Y CN 200520109818 CN200520109818 CN 200520109818 CN 200520109818 U CN200520109818 U CN 200520109818U CN 2807611 Y CN2807611 Y CN 2807611Y
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- CN
- China
- Prior art keywords
- television set
- sensitive key
- detectable signal
- processing unit
- exploring electrode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses a press key which uses the electricity principle to replace the original mechanics principle of machinery. A user can control the inner functions of a TV from the outside through the press key. The press key is additionally provided with an exploring electrode which can sense the variation of charge migration at the inner side of a panel of an insulating body. Simultaneously, the variation is compared with a reference value which is preset, a user's operation for the corresponding press key is judged, and a chip of a corresponding peripheral circuit is combined to output a signal which can be identified by a microprocessor in the TV. After the user operates the press key, a signal can be emitted to tell the microprocessor in the TV to execute the corresponding function, and the goal of the user's operation is realized at last. The utility model also discloses a TV which adopts a non-mechanical sensing press key.
Description
Technical field
The utility model relates to the information input technology of television set, particularly relates to a kind of non-mechanical sensitive key and television set of television set.
Background technology
Along with society and scientific and technological progress, various consumption electronic products are universal day by day, and for example, television set is quite high in the popularity rate of family, school and amusement place and other places; Competition between each manufacturer and the distributors is also fierce day by day.
At present, the operation push-button of general television set all is mechanical, and the user makes button interior metal reed contact conducting by apply certain pressure on the television set button, thereby connects related circuit, realizes corresponding feature operation.This kind button substantially all is to do intermediary by some structure smallclothes when using, promptly the user actual what push is the structure smallclothes supporting with TV shell, pressure is transmitted on the mechanical type button by these structure smallclothes then.The quality that these structure smallclothes design and produce, directly have influence on the use feel of television set function button, and because the difference in size of adult, child's hand is bigger, various buttons trigger required pressure and stroke size and have nothing in common with each other again, make the mechanical type button be difficult to satisfy simultaneously the use experience of all types of user.
The utility model content
The technical problem that the utility model solves is to provide a kind of non-mechanical sensitive key and television set of television set, can not need to apply external mechanical force and realizes operation to television set.
For this reason, the technical scheme of the utility model technical solution problem is: a kind of non-mechanical sensitive key of television set comprises:
Exploring electrode is arranged on the correspondence position of the function button on this television set, when the user touch or during near this function button its electric capacity change;
The detectable signal processing unit, its input connects this exploring electrode, is used for the microprocessor that capacitance variations according to this exploring electrode generates corresponding button triggering signal and exports this television set to;
Power subsystem is connected to this detectable signal processing unit, for this detectable signal processing unit provides working power.
The utility model also provides a kind of television set, comprising: be positioned at the insulator panel and the microprocessor that is positioned at movement of shell, described insulator panel is provided with function button; Also comprise aforementioned non-mechanical sensitive key; Described microprocessor is realized corresponding keypress function according to the button triggering signal of this non-mechanical sensitive key output.
Preferably, function button position in the appointment of television set insulation crust, the electrode that portion or inboard setting in the enclosure can the detection sensor charge migration changes, then with this electrode detection to variation be transferred to and can handle this variation and necessarily judge the chip of making certain action, this chip can compare variation that receives and the reference value that has configured in advance, the result that will compare is by showing in conjunction with the certain level of peripheral circuit output then, and this level can be transferred to the I/O mouth of the microprocessor MCU regulation of television set, MCU judges the level of I/O mouth input from then on, thereby carry out the function corresponding operation, reach the purpose that realizes corresponding keypress function with electrical principles.
With respect to prior art, the beneficial effects of the utility model are: thus because can changing by the perception charge migration, the device that the utility model adopts at television set on-mechanical formula induction touch press-key circuit makes trigger action, therefore the function button that as long as the user touches or close (reaching within the requirement distance) makes with the insulator panel, can realize the effect of corresponding function operation, that is to say, thereby can change the device of making trigger action by the perception charge migration by application in circuit is a kind of, the utilization electrical principles substitutes original Mechanics of Machinery principle, realize that the user is from external control television set built-in function, so realizing user's basic operation, when reaching basic purpose, for the user provides humanized operation interface, make user's operation lighter, satisfied, satisfy the comfortable demand of the potential serious hope of user and enjoy.
Description of drawings
Fig. 1 is the block diagram of television set of the present utility model;
Fig. 2 is the circuit diagram of the embodiment of television set non-mechanical sensitive key of the present utility model.
Embodiment
See also Fig. 1, television set of the present utility model comprises insulator panel 800, non-mechanical sensitive key 100 and television set microprocessor (MCU) 900.
Insulator panel 800 can be acrylic, glass, plastics, pottery or timber etc.
Non-mechanical sensitive key 100 comprises exploring electrode 110, detectable signal processing unit 120 and power subsystem 130; Exploring electrode 110 is connected to the input of detectable signal processing unit 120, and power subsystem 130 is connected to the power end of detectable signal processing unit 120, and for detectable signal processing unit 120 provides working power, acquisition of signal processing unit 120 also comprises earth terminal.
Wherein, described exploring electrode 110 can be positioned at inside or the inboard as the insulator panel 800 of housing of TV set.
The output of detectable signal processing unit 120 is connected to the push button signalling input of the microprocessor 900 of television set.Usually, at the input of microprocessor 900 pull-up resistor 140 is set and draws high level.
Because human body is equivalent to the electric capacity of hundreds of pico farad corresponding to environment, during when user's finger 700 touches or near (reaching within the requirement distance) insulator panel 800, exploring electrode 110 can produce charge inducing, the charge migration variation that is produced is sent to detectable signal processing unit 120, detectable signal processing unit 120 is through judging, send corresponding push button signalling enters Core of TV set by output and pull-up resistor 140 microprocessor 900, microprocessor 900 is made corresponding reaction according to push button signalling, thereby realizes corresponding keypress function.
That is to say, the utility model is in the function button position of television set insulation crust appointment, the exploring electrode 110 that portion or inboard setting in the enclosure can the detection sensor charge migration changes, then exploring electrode 110 detected change in electrical charge are transferred to and handle this variation and necessarily judge the detectable signal processing unit 120 of making certain action, the variation that detectable signal processing unit 120 can will receive compares with the reference value that has configured in advance, the result that will compare is by showing in conjunction with the certain level of peripheral circuit output then, and this level can be transferred to the I/O mouth of microprocessor 900 regulations of television set, the level of 900 pairs of I/O mouth inputs from then on of microprocessor is judged, thereby carry out the function corresponding operation, reach the purpose that realizes corresponding keypress function.
Seeing also Fig. 2, is the embodiment of the on-mechanical formula button of a television set, and this embodiment comprises six press keys.
Chip U1, the U2 of detectable signal processing unit, U3 can adopt the chip of same model, and 2 detectable signal input port Cin1, Cin2 and 2 signal output Out1, Out2 are respectively arranged, and can support 2 keypress functions.
Exploring electrode TP1, TP2, TP3, TP4, TP5 and TP6 are connected respectively to detectable signal input port Cin1, the Cin2 of chip U1, U2, U3.
The power pins VDD of chip U1, U2, U3 (4 pin, 9 pin) is directly connected to power vd D; Power pins VDD (9 pin) is also by capacitor C L ground connection.
The ground wire pin GND of chip U1, U2, U3 (1 pin, 3 pin) is ground connection directly.
The pin Rb1 of chip U1, U2, U3 (8 pin) and pin Rb2 (6 pin) are respectively by resistance R b1 and resistance R b2 ground connection.
The signal output Out1 of chip U1, U2, U3 (10 pin) is connected respectively to the base stage of triode Q1, Q3, Q5.
The emitter of triode Q1, Q3, Q5 is connected to power supply by LED and resistance R L.The grounded collector of triode Q1, Q3, Q5.
The base stage of triode Q1, Q3, Q5 is connected respectively to the end of resistance R 2, R4, R6; The other end of resistance R 2, R4, R6 is connected to the 2nd pin of socket JP1 by a diode among the double diode D4.
The 2nd pin of socket JP1 connects pull-up resistor R1 simultaneously, and the 1st pin directly connects power supply, the 3rd pin ground connection.
The signal output Out2 of chip U1, U2, U3 (7 pin) is connected respectively to the base stage of triode Q2, Q4, Q6.
The emitter of triode Q2, Q4, Q6 is connected to power supply by LED and resistance R L.The grounded collector of triode Q2, Q4, Q6.
The base stage of triode Q2, Q4, Q6 is connected respectively to the end of resistance R 3, R5, R7; The other end of resistance R 3, R5, R7 is connected to the 2nd pin of socket JP1 by another diode among the double diode D4.
Below, to realize that the MENU keypress function is the operation principle that example illustrates present embodiment.
When user 700 triggers the MENU button, the signal that exploring electrode TP1 senses enters the 2nd pin (Cin1) of U1 chip, chip U1 is through after relatively judging, make the open collector of its 10th pin (Out1) outlet internal, so produce dividing potential drop at socket JP1 the 2nd pin by pull-up resistor R1 and one of them diode of double diode D4, resistance R 2, triode Q1, be input to the microprocessor 900 of Core of TV set inside, microprocessor 900 is made corresponding action then, and on television screen function menu.Simultaneously, because the conducting of triode Q1 makes LED luminous, begun to start to control in order to indication MENU function button.
Need to prove that the concrete parameter of the circuit in the present embodiment and each components and parts is looked the difference of Core of TV set microprocessor 900 and television set functional requirement (as whether the light-emitting diode of indication usefulness will be arranged) and difference.
In sum, the utility model television set of a kind of non-mechanical sensitive key being provided and having adopted this non-mechanical sensitive key.Television set function button by scheme realization of the present utility model, the user uses hardly in use the television set function button is applied great power, only with hand contacts the position of corresponding function button gently, even need not apply any external mechanical force (as long as near within certain distance), just can reach the purpose of television set being carried out corresponding operating.
Therefore, the utility model can improve the use feel of existing television set function button, satisfies in all types of user use a kind of potential comfortable demand of serious hope of television set function button.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1. the non-mechanical sensitive key of a television set is characterized in that, comprising:
Exploring electrode is arranged on the correspondence position of the function button on this television set, when the user touch or during near this function button its electric capacity change;
The detectable signal processing unit, its input connects this exploring electrode, is used for the microprocessor that capacitance variations according to this exploring electrode generates corresponding button triggering signal and exports this television set to;
Power subsystem is connected to this detectable signal processing unit, for this detectable signal processing unit provides working power.
2. the non-mechanical sensitive key of television set according to claim 1 is characterized in that: also comprise pull-up resistor, be arranged on the signal output part of this detectable signal processing unit.
3. the non-mechanical sensitive key of television set according to claim 2, it is characterized in that: described detectable signal processing unit comprises the chip and the peripheral circuit thereof of the change in electrical charge that can handle this exploring electrode; Described chip compares aforementioned variation and reference value, and shows the level signal of comparative result in conjunction with peripheral circuit output.
4. the non-mechanical sensitive key of television set according to claim 3, it is characterized in that: the detectable signal input port of described chip connects this exploring electrode; Signal output is connected to the base stage of triode; The emitter of this triode is connected to working power, grounded collector; The base stage of this triode is also connected to an end of resistance; The other end of this resistance is connected to the input pin of socket by diode; The input pin of this socket connects described pull-up resistor simultaneously.
5. the non-mechanical sensitive key of television set according to claim 4 is characterized in that: also comprise light-emitting diode, be connected between the emitter and working power of triode.
6. the non-mechanical sensitive key of television set according to claim 5, it is characterized in that: the detectable signal input port of described chip is at least one, and the number of signal output is identical with the detectable signal input port.
7. the non-mechanical sensitive key of television set according to claim 1, it is characterized in that: the position of described exploring electrode setting specifically is the inside or the inboard of the insulator panel of this television set.
8. one kind comprises the television set as each described non-mechanical sensitive key of claim 1 to 7, also comprises insulator panel that is positioned at shell and the microprocessor that is positioned at movement, and described insulator panel is provided with function button; Described microprocessor is realized corresponding keypress function according to the button triggering signal of this non-mechanical sensitive key output.
9. television set according to claim 8 is characterized in that, the material of described insulator panel is acrylic, glass, plastics, pottery or timber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109818 CN2807611Y (en) | 2005-06-14 | 2005-06-14 | Non-mechanical inductive press-key of TV set and the TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109818 CN2807611Y (en) | 2005-06-14 | 2005-06-14 | Non-mechanical inductive press-key of TV set and the TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807611Y true CN2807611Y (en) | 2006-08-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109818 Expired - Lifetime CN2807611Y (en) | 2005-06-14 | 2005-06-14 | Non-mechanical inductive press-key of TV set and the TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807611Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376155A (en) * | 2010-08-13 | 2012-03-14 | 深圳市同方多媒体科技有限公司 | Circuit for controlling electric apparatus functions |
| CN103366427A (en) * | 2012-03-01 | 2013-10-23 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Portable identification transmitter for a passive access system of a motor vehicle |
| CN105141301A (en) * | 2015-08-31 | 2015-12-09 | 昆山龙腾光电有限公司 | Keying circuit and display device comprising keying circuit |
-
2005
- 2005-06-14 CN CN 200520109818 patent/CN2807611Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376155A (en) * | 2010-08-13 | 2012-03-14 | 深圳市同方多媒体科技有限公司 | Circuit for controlling electric apparatus functions |
| CN103366427A (en) * | 2012-03-01 | 2013-10-23 | 胡夫·许尔斯贝克和福斯特有限及两合公司 | Portable identification transmitter for a passive access system of a motor vehicle |
| CN105141301A (en) * | 2015-08-31 | 2015-12-09 | 昆山龙腾光电有限公司 | Keying circuit and display device comprising keying circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qingdao Jiaonan Haier Electronic Co., Ltd. Assignor: Qingdao Haier Electronics Co., Ltd.|Haier Group Company Contract record no.: 2010370000158 Denomination of utility model: Non-mechanical sensitive key for television and television Granted publication date: 20060816 License type: Exclusive License Record date: 20100422 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150614 Granted publication date: 20060816 |