CN1719486B - Circuit and interface for remote controller with hold key - Google Patents
Circuit and interface for remote controller with hold key Download PDFInfo
- Publication number
- CN1719486B CN1719486B CN 200510082581 CN200510082581A CN1719486B CN 1719486 B CN1719486 B CN 1719486B CN 200510082581 CN200510082581 CN 200510082581 CN 200510082581 A CN200510082581 A CN 200510082581A CN 1719486 B CN1719486 B CN 1719486B
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- resistor
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- gauge tap
- maintained switch
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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Abstract
A remote control with a two-wire interface has a plurality of control keys with associated resistors. The resistance value that can be measured between the terminals of the two-wire interface is translated into a command by the interface circuit of the device to be controlled. A hold switch is arranged such that a DC path is always present independent of the position of the hold switch. The interface circuit of the device to be controlled is designed such that even when the device is in a low-power or off-mode and the hold switch is activated the operation of a control key can be detected and a message or indication can be issued. The user is thus informed about the status of the hold key.
Description
Technical field
The present invention relates to be used for the telepilot of electronic installation, relate in particular to the wire remote control devices that is used in the portable set.
Background technology
Requirement is used for having several buttons such as the remote control unit of the device of portable audio system, presses any one button and can be detected by this device, and can be used for controlling the operation of this system.For example, the remote control unit that is used for audio system can have the button that improves and reduce volume, changes tone, left and right sides balance etc.
A kind of known way that is used between remote control unit and controlled device setting up communication comprises the use of microcontroller and common data bus, but for realizing, will be complicated and the cost height.
The another kind of known less mode of cost will be used the wired connection between remote control unit and the controlled device, wherein during the button in pressing remote control unit, control the change in impedance value between metal wire.Remote control unit in this case comprises the network of resistor, via push-button switch this resistor is connected to the control metal wire.
A kind of known switch resistance device circuit is R-2R resistor ladder (ladder) network.In this network, be worth for the resistor of R and connect mutually, last resistor is connected to a control line of remote control unit.Value is connected to an end of each resistors in series for an end of the resistors in parallel of 2R separately.By single-pole double throw switch the other end of each resistors in parallel is connected to ground or supply voltage.Change along with the combination of switch in this circuit at the voltage on the output line, described switch activates by the button of remote control unit.The shortcoming of this circuit is that it need use expensive double throw switch.
Another known resistor network is so-called dual network, and it is parallel with one another that wherein resistor is crossed over two control lines, and each resistor is connected with corresponding single pole single throw switch.As by this network title hinted, resistor has that to be in ratio be 1: 2: 4: the value of 8: 16 grades.Use for some, the advantage of this circuit is that it can detect any combination of pressing switch simultaneously.Yet, limit the maximum quantity that this circuit can clear and definite detector switch by the tolerance limit of resistor values and variation, voltage drift, electrical noise or the like.
In some applications, such as example given above, the user should not operate more than a switch at every turn and control agent set.Described device must similarly be discerned a plurality of buttons and press simultaneously and ignore.In this case, which button described device can be discerned and be pressed dispensable simultaneously.Yet, for the tolerance limit of given resistor values and the drift of supply voltage, still need to make the quantity maximization of switch.
All above-mentioned telepilots can be furnished with maintained switch or button, and it stops unwanted operation of equipment.Usually, maintained switch is the series connection single-pole switch, when it is activated, and in the series connection one pole switch interrupts control line one.If press any one control button when keeping button to be activated, then impedance will keep infinite height, and this is owing to interrupted DC channel.Therefore stoped unwanted operation.
Yet the user may forget and activate the maintenance button, has perhaps unconsciously activated the maintenance button.Then, if the user wants operating equipment, may mislead the user so and think that this equipment can not correctly work or fault is arranged.
In Fig. 1, show telepilot according to prior art.During standard operation, closed maintained switch 11.Disconnect gauge tap 2,4,7 and 9.Each that disposes gauge tap 2,4,7 and 9 respectively connected with control resistor 1,3,6 and 8.In the time of one in user's operation- control switch 2,4,7 or 9, between terminal 12 and 13, there is corresponding resistance value.The relevant interface electric circuit inspection of controlled plant and estimation resistance value are also carried out and the corresponding corresponding order of resistance value.When disconnecting maintained switch 11, interrupt DC channel.If the user operates any one gauge tap 2,4,7 and 9 now, there is not DC current to flow through so.Can between terminal 12 and 13, the measured impedance value keep infinite height, and can not detect and operated the control button.
Telepilot or controlled plant or both often are equipped with display, the message that this display can the display text numeral.In this case, when activating the maintenance button, wish when pressing the control button, to notify the user to activate the maintenance button.
Yet portable electric appts often requires the minimum power consumption of possibility to prolong the serviceable life of battery as far as possible.So when turn-offing portable electric appts, display also is turned off.When described equipment is turned off and keep button to be activated, can start this equipment, notify the subscriber-related current maintenance button that activates so that on display, give out information.
Summary of the invention
So expectation provides a kind of telepilot, it allows to change the power mode of the electronic equipment of operating conditions or connection, especially from low power standby to higher operation level, so that notify the current state of subscriber-related maintenance button.Below, use the term power mode that the operating conditions of " breaking " or " leading to " is described.Yet, also can imagine according to equipment of the present invention to propose two or more power modes, for example, the secondary power pattern, it only considers that connecting display gives out information.Also expectation provides a kind of remote controller interface that is used for telepilot of the present invention.Finally, expectation provides a kind of method of using telepilot of the present invention and interface to come the remote controller interface of operating equipment.
Realize above-mentioned purpose by the remote control unit that provides as claim 1.Interface circuit by the telepilot that provides as claim 5 is realized second purpose of the present invention.Realize the 3rd purpose of the present invention by the method that uses a teleswitch operating equipment that provides as claim 9.Show the embodiment that further expands and replace of the present invention in the corresponding dependent claims.
The invention provides a kind of remote control unit, it has and is furnished with respective terminal (12,13) two leads and one or more control resistor (1,3,6,8), described one or more control resistor (1,3,6,8) and be connected corresponding gauge tap (2,4 between the lead, 7,9) being associated, is the corresponding function or the order of controlled plant with the impedance transformation between two terminals (12,13) of remote control unit wherein, wherein gauge tap (2,4,7,9) operating influence terminal (12, the existence of the respective impedance 13), and wherein said remote control unit also has the maintained switch (11) of the operation that is used for suppression equipment, keeps resistor (14) to be associated with maintained switch (11), it is characterized in that: when activating and control resistor (1,3,6,8) gauge tap (2,4 that is associated, 7,9) time, irrespectively there is DC channel with the open of maintained switch (11), wherein, select the resistance value of control resistor and maintenance resistor, make and always distinguish the combination that keeps resistor and any control resistor.
In addition, the invention provides a kind of method of the operating equipment that uses a teleswitch, wherein described telepilot is connected to controlled plant by the two-terminal connection, wherein this equipment has first and second power modes at least, and this method may further comprise the steps: during second power mode, measure two terminals (12,13) impedance between, wherein, when in the described second power mode manipulate gauge tap (2,4,7,9) time, operated gauge tap (2 is depended in this impedance, 4,7,9); Operation into being carried out by described equipment is deciphered in measured impedance, made described equipment executable operations; Wherein, described telepilot has the maintained switch (11) of the operation that is used to suppress described equipment, and keep resistor (14) to be associated with maintained switch (11), select the resistance value of control resistor and maintenance resistor, make and always distinguish the combination that keeps resistor and any control resistor, keep resistor during first power mode, to be held switch activator, thereby make must by described equipment carry out operate in first power mode during be under an embargo, this method is further comprising the steps of: during described first power mode, detection is caused by the activation of the gauge tap that is associated with control resistor, DC channel between two terminals (12,13); If detect DC channel, then activate described equipment, thereby enter described second power mode; When at the described second power mode manipulate maintained switch (11), operation failure into being carried out by described equipment is deciphered in measured impedance, send signal and operated maintained switch (11) to user notification, and described equipment undo.
Telepilot of the present invention has two-wire-interface, so that communicate with controlled plant.This telepilot also shows one or more buttons or has the switch of corresponding associated resistance device.When action button or switch, at the two-wire-interface place, promptly between two metal line, can measure the value of corresponding resistor.Described resistor also can combine work with the resistor that is built in described controlled plant, forms voltage divider.All these determine that the method for the value of corresponding resistance value should be included in the principle of the present invention.Different resistor values is associated with the different switches of telepilot clearly, and therefore is associated with the difference in functionality of controlled plant.Configuration keeps button or switch in circuit in the following manner, that is, if press or operate any one control button, then DC channel always is independent of the position of maintained switch and exists.Telepilot of the present invention is characterised in that: when in addition when in low-power or shutdown mode, considering to make things convenient for the user to connect, be in low power consumpting state when keeping button activating.
In first embodiment, the series connection single-pole switch is used as maintained switch, and it is to being parallel to the maintenance resistor bypass of maintained switch.When activating the maintenance button, switch disconnects.Can measured impedance control corresponding resistor and the series connection that keeps resistor have been increased if press any one control button.By suitably selecting to keep the value of resistor, can discern the maintenance button of activation clearly.Because have DC channel when operating any control button, so electric current can be used for changing the power mode of the equipment of operation level from standby to higher, for example, it allows display message on display.Under the situation that described equipment has been operated, unnecessary change power mode.
In the second embodiment of the present invention, when bypass keeps resistor, activate the maintenance button.So, select the resistance value that is associated with control corresponding button or button.
In the third embodiment of the present invention, when activating the maintenance button, keep button to cause electric current.For example, keeping button is the one pole maintained switch, and it is with the maintenance resistor in series and be connected between two metal line of remote controller interface.Therefore, selecting the electric current in the maintenance pattern and keep resistor, is too little for changing power mode,, when not operating described equipment, starts controlled plant that is.If keeping any control button of pattern manipulate, then total impedance is formed by the maintenance resistor that is connected in parallel with the key associated resistor of control.The enough height of electric current that produced by the parallel connection of two resistors change power mode,, start the equipment that is connected that is.In being equal to the power mode of operator scheme, the described impedance of the Equipment Inspection that is connected, and this impedance compared with the value that is associated of control button with all.If the coupling between the resistance value that does not detect the measured impedance value and the allowed tabulation, hypothesis has been operated the maintenance button so.Therefore, give out information.
Select the resistance value of control resistor and maintenance resistor, always distinguish the combination that keeps resistor and any control resistor thus.By using the suitable resistance value, whether serial or parallel connection is not important to control resistor to keep resistor.
The interface that detects the control button operation when activating the maintenance button detects electric current by telepilot, and the control circuit in controlled plant sends signal.Control circuit changes the power mode of controlled plant in the power mode that is being equal to " shutoff ", and the message of the present situation of the subscriber-related maintenance button that makes an announcement.If operated this equipment, then testing circuit detects the impedance at remote controller interface place and with the impedance that detected and comparing with the related impedance of control function of being stored.If coupling not between the measured impedance and the impedance that is used for control function of being stored, then hypothesis activation keeps button.The message of the present situation of subscriber-related maintenance button makes an announcement.
A kind of method that is used for by the telepilot operating equipment, wherein telepilot has maintained switch, and this maintained switch stops the operation of equipment when activating, and the method comprising the steps of: operation into being carried out by this equipment is deciphered in the impedance that is detected.This method also comprises: detect DC channel between the terminal of telepilot, change the power mode of this equipment and send signal when breaking down, so that operation into carrying out is deciphered in measured impedance.
Description of drawings
With reference now to accompanying drawing, mode by example, will further specify the present invention, wherein
Fig. 1 shows the known telepilot of prior art;
Fig. 2 shows first embodiment of telepilot of the present invention;
Fig. 3 shows second embodiment of telepilot of the present invention;
Fig. 4 shows the 3rd embodiment according to telepilot of the present invention;
Fig. 5 shows the 4th embodiment according to telepilot of the present invention; With
Fig. 6 shows the synoptic diagram according to the interface circuit of telepilot of the present invention.
Embodiment
In the description of prior art with reference to Fig. 1, so no longer be elaborated.
First embodiment of telepilot of the present invention has been shown among Fig. 2.During normal running, maintained switch 11 closed and bypassed resistors 14.Disconnect gauge tap 2,4,7 and 9.Each of gauge tap 2,4,7 and 9 is configured to respectively connect with control resistor 1,3,6 and 8.When one of user's operation- control switch 2,4,7 and 9, between terminal 12 and 13, there is corresponding resistance value.The relevant interface electric circuit inspection of controlled plant and estimation resistance value are also carried out corresponding to the order of resistance value separately.Can select resistance value, thereby make interface circuit can detect the closure of a plurality of gauge tap simultaneously.When disconnecting maintained switch 11, keep resistor 14 and control resistor 1,3,6 and 8 to be connected in series.Yet, as long as neither one closure in the gauge tap 2,4,7 and 9 does not have DC current to flow.If the user operates any one gauge tap 2,4,7 and 9 now, DC current flows so.Can be between terminal 12 and 13 the measured impedance value add the impedance that keeps resistor corresponding to the impedance of the control resistor that is associated with operating switch.DC current has been allowed described device detection operation control button is although maintained switch is effective.Make that now the interface circuit of the impedance of existence can detect the inhibition or the operation of any gauge tap between detection and the estimation terminal 12 and 13, and determine to have operated maintained switch simultaneously.The control circuit of the equipment by telepilot control can be issued message or any other indication that maintained switch is activated now and give the user, and abandons and control key associated order.If described equipment is in low-power or standby mode before any gauge tap operation, flows through control resistor so and keep the DC current of resistor can be used for starting described equipment.Can finish by a start-up control logic at first and to start described equipment, described steering logic control display or other are used to notify user's device.Should be noted that the accompanying drawing that runs through all, the quantity of all resistors illustrated in the accompanying drawings is not limited to 4.The resistor of any other suitable quantity is possible, and this resistor is required the equipment of control linkage.
Second embodiment of telepilot of the present invention has been shown among Fig. 3.In the figure, a plurality of control resistors 1,3 and 6 each connect with gauge tap 2,4 and 7 respectively.Control resistor and gauge tap be configured in parallel coupled between two lines, described two lines are connected to terminal 12 and 13.When the operation of any gauge tap, the associated impedances between can measurement terminal 12 and 13.Keep resistor 14 and maintained switch 11 to be configured to be connected in series.Keep the configuration of resistor and maintained switch to be coupled in parallel to control resistor and gauge tap.When operation maintained switch 11, between terminal 12 and 13, can measure the impedance that keeps resistor.Keep impedance not correspond to any control resistor, so will not keep impedance to decipher order into described equipment.If operate any gauge tap, the control resistor parallel coupled that is associated with corresponding switch then.Select control resistor and keep the resistance value of resistor, thus control resistor and keep resistor anyly be connected in parallel that not deciphered be order.
Fig. 4 has described the 3rd embodiment according to telepilot of the present invention.In the figure, control resistor 1,3 and 6 is configured to be connected in series.When terminal 12 is watched, gauge tap 2,4 and 7 is coupling in after each control resistor.According to the gauge tap of operation, can be between terminal 12 and 13 measured impedance corresponding to the summation that is configured in the single impedance in the closed subsequently circuit.Keep resistor 14 and maintained switch 11 to be configured to be connected in series and cross over the last gauge tap 7 of gauge tap line and be coupled.When operation during maintained switch 11, can cross over terminal 12 and 13 resulting impedances of measuring and comprise all control resistors 1,3 and 6 and keep resistor 14.Therefore, when the operation maintained switch, between terminal 12 and 13, always there is DC channel.The interface circuit of deciphering resistance value can determine to have operated the maintained switch of telepilot now, and wherein this resistance value can be measured when any gauge tap is operated.Any impedance variation between the terminal 12 and 13 that detection is caused by the operation of gauge tap.The control circuit that is coupled to interface can be abandoned the order related with measured resistance value now, and notifies the user to operate maintained switch.As previous example, notify the state of subscriber-related maintained switch or to send the visual indication that maybe can listen and to realize by display message on display.
Another embodiment of telepilot of the present invention has been shown among Fig. 5.This circuit corresponds essentially to circuit shown in Figure 4.Control resistor 1,3,6 and 8 series coupled, and when when terminal 12 is watched, gauge tap 2,4,7 and 9 is configured in after each control resistor.Last gauge tap in the gauge tap line is connected to last control resistor, thus can be when last gauge tap 9 operation the measured impedance value equal the summation of the resistance value of all control resistors.As in Fig. 4, explaining, operation-control switch produce can be between terminal 12 and 13 value that measure, that be associated with control resistor.During normal running, closed maintained switch 11, bypass keeps resistor 14.If disconnect maintained switch 11, then keep resistor 14 and control resistor series coupled.Therefore, when gauge tap is operated, measurable resulting impedance increases the value that keeps resistor between terminal 12 and 13.The steering logic that is used for measurement terminal 12 and 13 s' impedance can detect the existence of the impedance between terminal and order into controlled plant is deciphered in this impedance.Select the resistance value of control resistor and maintenance resistor, thereby keep resistor and being connected in series of any one control resistor will cause determining to have operated maintained switch.Therefore, control circuit will send the indication of having operated maintained switch to the user, and abandon otherwise the order that will decipher.
Fig. 6 shows according to example interface circuit of the present invention.Interface circuit shown in the figure is applicable to the telepilot of Fig. 4.The terminal 12 of the telepilot of Fig. 4 is connected to terminal RKEY.Terminal 13 ground connection of the telepilot of Fig. 4 do not illustrate in the drawings.Suppose maintained switch is operated and maintained switch 14 can be measured between terminal RKEY and ground.Select impedance, so that the impedance over the ground and the maintenance resistor that exist by closed maintained switch are not enough to transistor Q701 is introduced conducting state.If operate any one gauge tap, control resistor that then is associated and maintenance resistor are by parallel coupled.Total impedance is lower than the impedance of single maintenance resistor.Resistance value is enough low now, thereby transistor Q701 is introduced conducting state.Yet this is converted to conducting state with transistor Q700.Transistor Q700 sends the signal EN that can be used for starting power supply.In case power supply is activated, there are voltage VG and DDVCC so.Transistor Q703 is in conducting state now.With the impedance phase ratio of control resistor and maintenance resistor, the impedance of transistor Q703 is less.Now, can measure substantially unchangeably at the terminal REMOCON place of interface circuit can by to interface circuit RKEY input, at the terminal 12 of telepilot and the resistance value of 13 measurements.Even when operation kept button and equipment to be in the stand-by state of shutdown mode, interface circuit of the present invention was also allowed the power supply of starting outfit therefore.
Claims (13)
1. remote control unit, have be furnished with respective terminal two leads of (12,13) and one or more control resistor (, 1,3,6,8), described one or more control resistor (1,3,6,8) and be connected corresponding gauge tap (2,4 between the lead, 7,9) being associated, is the corresponding function or the order of controlled plant with the impedance transformation between two terminals (12,13) of remote control unit wherein, wherein gauge tap (2,4,7,9) operating influence terminal (12, the existence of the respective impedance 13), and wherein said remote control unit also has the maintained switch (11) of the operation that is used for suppression equipment, keeps resistor (14) to be associated with maintained switch (11), it is characterized in that: when activating and control resistor (1,3,6,8) gauge tap (2,4 that is associated, 7,9) time, irrespectively there is DC channel with the open of maintained switch (11)
Wherein, select the resistance value of control resistor and maintenance resistor, make and always distinguish the combination that keeps resistor and any control resistor.
2. remote control unit according to claim 1 is characterized in that: when maintained switch (11) was closed, the maintenance resistor (14) that is associated with maintained switch (11) was by bypass.
3. remote control unit according to claim 2 is characterized in that: when not having closed gauge tap (2,4,7,9), do not have DC channel.
4. according to the interface circuit of the remote control unit of claim 2, wherein said interface circuit comprises the parts that are used to estimate the impedance that exists between two input terminals, it is characterized in that: the parts that are used for following operation are provided, described being operating as: detect any impedance variation between two input terminals that the operation by gauge tap causes, impedance that is detected and the impedance that is associated with control function of being stored are compared, if and do not detect the impedance that is detected and the impedance of being stored with control function is associated between coupling, then abandon the order that is associated with this gauge tap.
5. according to the interface circuit of the remote control unit of claim 1, wherein keep resistor and maintained switch to be configured to be connected in series, control resistor and gauge tap are configured to be connected in series, the configuration of maintenance resistor and maintained switch is coupled in parallel to the configuration of control resistor and gauge tap, described interface circuit comprises the parts that are used to estimate the impedance that exists between two input terminals, it is characterized in that: the parts that are used for following operation are provided, described being operating as: detect any impedance variation between two input terminals that the operation by gauge tap causes, impedance that is detected and the impedance that is associated with control function of being stored are compared, if and do not detect the impedance that is detected and the impedance of being stored with control function is associated between coupling, then abandon the order that is associated with this gauge tap.
6. according to the interface circuit of the remote control unit of claim 1, wherein control resistor (1,3,6) be configured to be connected in series, when from terminal (12) gauge tap (2 when watching, 4,7) be coupled in each control resistor (1,3,6) afterwards, keep resistor (14) and maintained switch (11) to be configured to be connected in series and cross over last gauge tap (7) and be coupled, described interface circuit comprises the parts that are used to estimate the impedance that exists between two input terminals, it is characterized in that: the parts that are used for following operation are provided, described being operating as: detect that maintained switch by closure forms, DC channel setting up between two input terminals, any impedance variation between two input terminals that detection is caused by the operation of gauge tap, and after detecting described DC channel, abandon the order that is associated with measured resistance value.
7. according to the described interface circuit of any one claim in the claim 4 to 6, it is characterized in that: described circuit also comprises the parts of the message of the open that is used to make controlled plant send relevant maintained switch.
8. interface circuit according to claim 7 is characterized in that: the described parts that are used to controlled plant is initiated a message comprise the parts that are used for activating power.
9. portable set comprises according to the described interface circuit of any one claim in the claim 4 to 6 formerly.
10. the method for the operating equipment that uses a teleswitch wherein is connected to controlled plant by the two-terminal connection with described telepilot, and wherein this equipment has first and second power modes at least, and this method may further comprise the steps:
During second power mode, measure the impedance between two terminals (12,13), wherein, when in the described second power mode manipulate gauge tap (2,4,7,9), operated gauge tap (2,4,7,9) is depended in this impedance;
Operation into being carried out by described equipment is deciphered in measured impedance, made described equipment executable operations;
Wherein, described telepilot has the maintained switch (11) of the operation that is used to suppress described equipment, and keep resistor (14) to be associated with maintained switch (11), select the resistance value of control resistor and maintenance resistor, make and always distinguish the combination that keeps resistor and any control resistor, keep resistor during first power mode, to be held switch activator, thus make must by described equipment carry out operate in first power mode during be under an embargo, this method is further comprising the steps of:
During described first power mode, detect the DC channel between that activation by the gauge tap that is associated with control resistor causes, two terminals (12,13);
If detect DC channel, then activate described equipment, thereby enter described second power mode;
When at the described second power mode manipulate maintained switch (11), operation failure into being carried out by described equipment is deciphered in measured impedance, send signal and operated maintained switch (11) to user notification, and described equipment undo.
11. method according to claim 10 is characterized in that: described first power mode is standby or shutdown mode, and described second power mode is an operator scheme.
12. method according to claim 10 is characterized in that: described signal is a differentiable signal visually or on the sound sensation.
13. method according to claim 10 is characterized in that: described visually differentiable signal is the text message that is presented on the display.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04300435A EP1615188A1 (en) | 2004-07-09 | 2004-07-09 | Circuit and interface for remote control with hold key |
| EP04300435.7 | 2004-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719486A CN1719486A (en) | 2006-01-11 |
| CN1719486B true CN1719486B (en) | 2011-09-21 |
Family
ID=34931704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510082581 Expired - Fee Related CN1719486B (en) | 2004-07-09 | 2005-07-11 | Circuit and interface for remote controller with hold key |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1615188A1 (en) |
| CN (1) | CN1719486B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101409596B1 (en) * | 2012-12-11 | 2014-06-20 | 삼성전기주식회사 | Power Supply Unit and control method thereof |
| CN103000017B (en) * | 2012-12-17 | 2016-06-22 | 深圳Tcl新技术有限公司 | The moveable remote control unit of button and remote controller |
| RO132882A2 (en) | 2017-04-05 | 2018-10-30 | Preh Gmbh | System and method of simultaneous reading of a plurality of buttons or sensors using a single analogue pin of a microcontroller |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1172232A (en) * | 1966-05-24 | 1969-11-26 | Coal Industry Patents Ltd | Remote Control Circuits for Electric Motors |
| JPS6058795A (en) * | 1983-09-09 | 1985-04-04 | Toshiba Corp | Wired remote control device |
-
2004
- 2004-07-09 EP EP04300435A patent/EP1615188A1/en not_active Withdrawn
-
2005
- 2005-07-11 CN CN 200510082581 patent/CN1719486B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1719486A (en) | 2006-01-11 |
| EP1615188A1 (en) | 2006-01-11 |
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Granted publication date: 20110921 Termination date: 20160711 |