CN201315630Y - DVB-S set top box with standby touch key - Google Patents
DVB-S set top box with standby touch key Download PDFInfo
- Publication number
- CN201315630Y CN201315630Y CNU200820213522XU CN200820213522U CN201315630Y CN 201315630 Y CN201315630 Y CN 201315630Y CN U200820213522X U CNU200820213522X U CN U200820213522XU CN 200820213522 U CN200820213522 U CN 200820213522U CN 201315630 Y CN201315630 Y CN 201315630Y
- Authority
- CN
- China
- Prior art keywords
- top box
- standby
- touch
- touched
- process chip
- Prior art date
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model relates to a set top box with a standby touch key, which comprises a standby contact, a touch processing chip connected with the standby contact for outputting a high or low level according to the touch state, and a processor connected with the touch processing chip for controlling the standby state of the set top box according to the high or low level. The conventional DVB-S set top box using mechanical key has inconvenience in operation. The set top box having the standby touch key as the substitute of the conventional mechanical key has much convenience in operation.
Description
Technical field
The utility model relates to set-top box, more particularly, relates to a kind of DVB-S set-top box with standby touch key-press.
Background technology
The set-top box application of DVB-S standard is extensive, and it adopts built-in middleware Technology and browser, and multiple multimedia service function can be provided.Touching technique extensive use in various fields at present is a mechanical key and general DVB-S set-top box is all also used, and this mechanical type button will certainly bring the inconvenience on the certain operations.
The utility model content
The technical problems to be solved in the utility model is, uses mechanical key and the defective of making troubles at the above-mentioned set-top box of prior art, and a kind of DVB-S set-top box with standby touch key-press is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of set-top box with standby touch key-press, it comprises the standby contact, be connected with described standby contact and be used for being connected according to the touch process chip of its touch condition output high-low level and with described touch process chip the processor that is used for according to described high-low level controller top box holding state.
In set-top box described in the utility model, described touch process chip comprises inductance capacitance Cx, external modulation capacitor C
Mod, constant-current source, low pass filter, comparator, 16 digit counters, oscillator and data processor.
In set-top box described in the utility model, the time line length of the timeline when described standby contact is touched when not being touched.
In set-top box described in the utility model, output was low level when described touch process chip was touched, and output is not high level when being touched.
Implement the set-top box with standby touch key-press of the present utility model, have following beneficial effect: with the traditional mechanical type button of touch standby button agency, for bringing many convenience in the operation.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the system block diagram of set-top box of the present utility model;
Fig. 2 is the schematic diagram of the touch process chip of set-top box of the present utility model;
Fig. 3 is the voltage schematic diagram of the standby contact two states of set-top box of the present utility model;
Fig. 4 is the schematic diagram of the partial circuit of set-top box of the present utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be understood that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, there is shown the set-top box that the utlity model has the standby touch key-press.According to the utility model, shown set-top box comprises standby contact 1, touches process chip 2 and processor 3.Wherein, touch process chip 2 and be connected with standby contact 1, be used for according to its touch condition output high-low level, processor 3 touches process chip 2 and connects, and is used for according to above-mentioned high-low level controller top box holding state.Only show standby contact 1 among the figure, touch process chip 2 and processor 3, the circuit of other function of set-top box also is not shown on this.The utility model is with the traditional mechanical type button of touch standby button agency, for bringing many convenience in the operation.
As shown in Figure 2, machine touch process chip 2 of the present utility model comprises inductance capacitance Cx, external modulation capacitor C
Mod, constant-current source, low pass filter (LPF), comparator, 16 digit counters (16-bit Counter), oscillator (Oscillator) and data processor (Data Processing).The inter-process block diagram of touch process chip as shown in Figure 2, when the standby contact is not touched, be equivalent to a constant-current source and give capacitor C mod charging, send into comparator through a low pass filter, the output of comparator is sent into 16 digit counters again and is counted, and the result with counter handles in data processor then.When the standby contact is touched, be equivalent to touch the inductance capacitance of handling a chip exterior and a last Cx, Φ 1 and Φ 2 close a switch, and the result of this hour counter will be different, touch process chip and export different high-low levels to processor according to different results.
As shown in Figure 3, the timeline of the timeline when shown standby contact is touched when not being touched is long, touches process chip and just can judge whether carried out touch action according to the length of judging timeline.The impedance R of above-mentioned Cx when as can be seen from the figure, the contact is touched
CXReduce, cause starting voltage V
FingerReduce, the Cx charging interval is extended.
As shown in Figure 4, the physical circuit of set-top box of the present utility model shown in the figure.When standby contact S6207 is touched, touch process chip ADA03 and judge that the generation of touch is arranged, its 1 pin STANDBY will output low level so.Output was not exactly the high level of 3.3V when the contact was touched, and the STANDBY pin is connected to the I/O mouth of processor (not shown), and processor determines according to high-low level whether the STANDBY time takes place then.Wherein, the span of R6242 is generally got its representative value 500k ohm at 300k to 650k, and the C6243 representative value is 1.2nF.C6241 is equivalent to external modulation capacitor C shown in Figure 2
Mod, this trimmer has determined the sensitivity that touches, and therefore selects the representative value 180pf of 3.3V, this value is adjustable in 180pf to 800pf scope.C6242 is equivalent to inductance capacitance Cx shown in Figure 2, and this trimmer is chosen as 2pF at this.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; any modification of being done within every spirit of the present utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1, a kind of set-top box with standby touch key-press, it is characterized in that, comprise standby contact (1), be connected with described standby contact (1) and be used for being connected the processor (3) that is used for according to described high-low level controller top box holding state according to the touch process chip (2) of its touch condition output high-low level and with described touch process chip (2).
2, set-top box according to claim 1 is characterized in that, described touch process chip (2) comprises inductance capacitance Cx, external modulation capacitor C
Mod, constant-current source, low pass filter, comparator, 16 digit counters, oscillator and data processor.
3, set-top box according to claim 1 is characterized in that, the time line length of the timeline of described standby contact (1) when being touched when not being touched.
4, set-top box according to claim 1 is characterized in that, what described touch process chip (2) was exported when being touched is low level, and output is not high level when being touched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820213522XU CN201315630Y (en) | 2008-11-12 | 2008-11-12 | DVB-S set top box with standby touch key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820213522XU CN201315630Y (en) | 2008-11-12 | 2008-11-12 | DVB-S set top box with standby touch key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315630Y true CN201315630Y (en) | 2009-09-23 |
Family
ID=41127434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820213522XU Expired - Fee Related CN201315630Y (en) | 2008-11-12 | 2008-11-12 | DVB-S set top box with standby touch key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315630Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437846A (en) * | 2011-10-20 | 2012-05-02 | 泉芯电子技术(深圳)有限公司 | Touch switch control circuit |
| CN103237253A (en) * | 2013-05-15 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | DVB-S (digital video broadcasting-satellite) set top box compatible with various audio video signal interfaces and having standby mode |
| CN110138373A (en) * | 2019-05-24 | 2019-08-16 | 深圳市谷粒科技有限公司 | Key information processing equipment and method |
-
2008
- 2008-11-12 CN CNU200820213522XU patent/CN201315630Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437846A (en) * | 2011-10-20 | 2012-05-02 | 泉芯电子技术(深圳)有限公司 | Touch switch control circuit |
| CN103237253A (en) * | 2013-05-15 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | DVB-S (digital video broadcasting-satellite) set top box compatible with various audio video signal interfaces and having standby mode |
| CN103237253B (en) * | 2013-05-15 | 2015-12-23 | 海安欣凯富机械科技有限公司 | Compatible multiple audio-video signal interface also has the DVB-S Set Top Box of standby mode |
| CN110138373A (en) * | 2019-05-24 | 2019-08-16 | 深圳市谷粒科技有限公司 | Key information processing equipment and method |
| CN110138373B (en) * | 2019-05-24 | 2023-12-15 | 深圳市谷粒科技有限公司 | Key information processing apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014000543A1 (en) | Method and device for text input and display of intelligent terminal | |
| CN102868392B (en) | Portability key circuit | |
| CN103686464B (en) | Apparatus control method, device and electronic equipment | |
| CN201315630Y (en) | DVB-S set top box with standby touch key | |
| CN102478974B (en) | Electromagnetic pen for electronic whiteboard and control method thereof | |
| CN201639564U (en) | Capacitance induction type key | |
| CN101488047A (en) | Keyboard with power on/off function | |
| CN206180986U (en) | Trigger circuit and earphone restore to throne | |
| CN207304514U (en) | Low-power consumption touch sensible wakes up system | |
| CN102236415A (en) | Keyboard with fingerprint power-on device | |
| CN101783669A (en) | Capacitance type touch press key and judging method thereof | |
| CN204258758U (en) | A kind of power down does not produce the reset circuit of reset signal | |
| CN202889317U (en) | Capacitance type touch key circuit | |
| CN105227188B (en) | A kind of more key press detecting circuits | |
| CN216052683U (en) | MCU long press reset disaster prevention circuit | |
| CN211128113U (en) | Earphone in-ear detection chip circuit | |
| CN213279618U (en) | On-off device of capacitive touch key | |
| CN203278792U (en) | Structure capable of realizing switching function of mechanical key by means of capacitive touch detection chip | |
| CN202094866U (en) | Capacitor touch switch and sensing plate | |
| CN202798060U (en) | Cell energy saving device and electronic equipment | |
| CN103164008A (en) | Complementary metal oxide semiconductor (CMOS) password eliminating circuit | |
| CN202210787U (en) | Transplantable button circuit | |
| CN206532281U (en) | Can a key enter reforestation practices E-book reader | |
| CN207010646U (en) | Button assembly and electronic equipment | |
| CN206249156U (en) | A kind of computer mistaken collision preventing switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20111112 |