CN1157519A - Circuit for controlling panel lamps in flip-type cellular telephone - Google Patents
Circuit for controlling panel lamps in flip-type cellular telephone Download PDFInfo
- Publication number
- CN1157519A CN1157519A CN96116764A CN96116764A CN1157519A CN 1157519 A CN1157519 A CN 1157519A CN 96116764 A CN96116764 A CN 96116764A CN 96116764 A CN96116764 A CN 96116764A CN 1157519 A CN1157519 A CN 1157519A
- Authority
- CN
- China
- Prior art keywords
- overturn cover
- power supply
- panel light
- overturn
- control circuit
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
- H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Disclosed is a panel light of a box type telephone with overturn cover, and the lightening and extinguishing of the panel light controlled by the overturn cover status of <on/off>. The control circuit of the panel light includes a power supply providing constant voltage, an overturn cover state checking circuit which is used to check the <on/off> state of the overturn-cover and create overturn-cover state detection signal, a control circuit which is powered by the power supply and can generate control signal for the lightening and extinguishing of the light bulb according to the overturn-cover state detection signal, and a driving circuit which supplies power to switch on the panel light by responding to the ON control signal from the control circuit output, or cuts off the power to switch off the panel light by responding to the OFF control signal..
Description
The present invention relates to the control circuit of telephone ' s faceplate lamp, more particularly, relate to the control circuit that is used for controlling flip-type cellular telephone back lighting lamp.
In most of the cases, the boxlike telephone set has a plurality of Panel lights (or back lighting lamp), and these lamps are installed in the bottom of key panel, with the convenience that provides use night.When using telephone set, Panel light is opened in the given time, illuminates key panel to make things convenient for the user.
The boxlike telephone set that particularly has overturn cover comprises a drive circuit, and this circuit comes the control panel lamp by the opening that detects overturn cover.Overturn cover is widely used for protecting key panel in order to avoid the embedding of external influence or exterior materials.And then overturn cover makes telephone set be easy to carry.
In common flip-type cellular telephone, when opening overturn cover, Panel light is lighted, even at this moment close overturn cover, Panel light still keeps illuminating state within the predetermined time, and this time is determined by the RC time constant, or controlled by timer.
Therefore,, close immediately again then when the user by mistake opens overturn cover, the cancellation dialing, Panel light still keeps illuminating state within the predetermined time, thereby causes the unnecessary consumption of boxlike telephone set battery.
An object of the present invention is to provide a kind of flip-type cellular telephone, this telephone set has the circuit that reduces the Panel light battery consumption.
Another object of the present invention provides a kind of flip-type cellular telephone, and this telephone set has according to the opening of the overturn cover/state of closing lights or extinguish the circuit of Panel light.
According to an aspect of the present invention, having the power supply of the constant voltage of providing and the boxlike telephone ' s faceplate lamp control circuit of overturn cover comprises: be used for detecting overturn cover and open/close state and produce the testing circuit of overturn cover state detection signal; Response overturn cover state detection signal, by the power supply power supply produce the control bulb bright/control circuit of the signal that goes out; And drive circuit, the response of this circuit is lighted Panel light for Panel light provides power supply from the control signal of turning on light of control circuit output, or the turn off the light power supply of control signal sever supply Panel light of response extinguishes Panel light.
By means of below in conjunction with the detailed description of accompanying drawing to exemplary embodiment, above and other purposes of the present invention, feature and advantage will be clearer.Here:
Fig. 1 is the block diagram of panel lamps in flip-type cellular telephone control circuit according to an embodiment of the invention.
Fig. 2 is Panel light control circuit detail circuits figure according to an embodiment of the invention.
Referring to Fig. 1, boxlike telephone ' s faceplate lamp control circuit comprises according to an embodiment of the invention: the power supply 12 that constant voltage is provided; Be switched on or switched off power supply so that produce the overturn cover switch of overturn cover state detection signal according to the opening of overturn cover (among the figure do not have the show)/state of closing; Controller 16, this controller by power supply power supply, be used for responding the overturn cover state detection signal that overturn cover switch 14 produces and produce bulb bright/control signal of going out; And lamp drive circuit, the response of this circuit is lighted Panel light for Panel light provides power supply from the control signal of turning on light of control circuit output, or the turn off the light power supply of control signal sever supply Panel light of response is closed Panel light.
In the drawings, the overturn cover switch is a magnetic switch, and when the magnetisable material of a certain ad-hoc location was near this switch on being installed in overturn cover, magnetic switch was energized.Controller 16 is made of chip microprocessor or a plurality of logic combination circuit.Notice that what narrate below is the situation that is made of controller 16 microprocessor.
Referring to Fig. 2 shown according to Panel light control circuit detail circuits figure of the present invention, it has represented overturn cover switch 14, how controller 16 is connected with lamp driver 18.
In the drawings, label 16 is represented controller, and label 14 representative is as the overturn cover switch of being made up of magnetic switch described in Fig. 1.The middle part of going up of overturn cover 20 is equipped with magnetisable material M, makes that magnetisable material M nestles up the overturn cover switch when overturn cover 20 closures.Lamp drive circuit 18 comprises a plurality of lamps that are connected between switch element and the power supply V2, and wherein switch element is a diode, and lamp is light-emitting diode (LEDs).
Referring again to Fig. 1 and Fig. 2, will be described in detail opened/closed below, the work of lamp D1-D8 corresponding to overturn cover 20.
If the user opens overturn cover 20 and uses telephone set now, the magnetisable material M that is installed on the overturn cover 20 leaves overturn cover switch 14, then overturn cover switch 14 disconnects, the port P2 of controller 16 is offered the port P2 of controller 16 owing to having used pullup resistor R5 to become logic " height " level state by the power supply V3 of power supply 12 supplies between this port P2 and power supply V3.
According to the height of the voltage of port P2, controller 16 produces output voltage on port P1.According to most preferred embodiment of the present invention, when overturn cover 20 was opened, controller 16 produced logic " height " level state on port P1.
At this moment, logic " height " level state at echo port P1 place, its base stage is connected to the transistor T R1 conducting of port P1 through resistor R 1.Therefore as a result, the transistor T R2 conducting that its base stage links to each other with the emitter of transistor T R1 forms current path between the collector electrode of TR2 and emitter.Thereby the lamp D1-D8 that is connected between the collector electrode of the power supply V2 that provided by power supply 12 and transistor T R2 is all lighted.As previously mentioned, lamp D1-D8 be installed in the boxlike telephone key below, be that the user provides convenience to illuminate button.
Under the control of controller 16, extinguish automatically behind one section preset time of lamp D1-D8 continuity.For example, surpassed preset time if overturn cover 20 is opened during user's conversation, controller 16 produces logic " low " level at port P1, automatically lamp D1-D8 is extinguished.
On the contrary, if before preset time overturn cover 20 closures, then therefore the magnetisable material M of overturn cover 20 utilizes magnetic force that overturn cover switch 14 is connected near overturn cover switch 14.
At this moment, from drawing voltage V3 to be bypassed to ground on the power supply 12 through resistance R 5 devices and overturn cover switch 14, the port P2 of controller 16 becomes logic " low " level state, and controller 16 produces logic " low " level according to logic " low " level state of the port P2 that detects at port P1 place.
Transistor T R1 ends.Equally, its base stage is ended with the transistor T R2 that the emitter of transistor T R1 links to each other.As a result, blocked from the power supply V2 of power supply 12 and the current path between the ground, D1-D8 extinguishes with lamp.That is, the anode of LEDs links to each other with power supply V2, and is blocked between the negative electrode of LEDs and the ground, thereby has blocked current path.
In a word,,, therefore reduced current drain, saved battery so overturn cover closure panel lamp extinguishes because the opening of the panel control circuit of the present invention response overturn cover/state of closing is controlled back lighting.
Although at length narrated most preferred embodiment of the present invention above, yet obviously, for the professional and technical personnel, can make a lot of variation and modifications based on basic conception of the present invention described here, and these variations and modification spirit all according to the invention, and within the scope of the present invention of attached claim defined.
Claims (4)
1. comprise the Panel light control circuit of the boxlike telephone set of the power supply that the constant voltage power supply is provided, it is characterized in that comprising:
Overturn cover that can open and close, described overturn cover is installed on the described boxlike telephone set;
The overturn cover condition checkout gear, what be used for detecting described overturn cover opens/closes state, and produces the overturn cover state detection signal;
By the control device of described power supply power supply, it responds described overturn cover state detection signal and produces the ON/OFF control signal of lamp; And
Driving lamp, the response of this device is lighted Panel light for described Panel light provides described power supply from the described control signal of turning on light of described control circuit output, or responds described described power supply of turning off the light control signal sever supply Panel light Panel light is closed.
2. according to the Panel light control circuit of claim 1, its characteristics are: described overturn cover comprises magnetisable material.
3. according to the Panel light control circuit of claim 2, its characteristics are: described overturn cover condition checkout gear comprises the magnetic switch that is installed in corresponding to the magnetisable material place, and is switched on or switched off magnetic switch by magnetisable material.
4. comprise the drive control signal of the Panel light control circuit of boxlike telephone set of the power supply that the constant voltage power supply is provided and response input and with a plurality of Panel lights that on every side illuminate of described power supply power supply, it is characterized in that comprising button:
Overturn cover that can open and close, described overturn cover is installed on the described boxlike telephone set;
The overturn cover condition checkout gear, what be used for detecting described overturn cover opens/closes state, and produces the overturn cover state detection signal;
Therefore can respond the described overturn cover state detection signal of the described overturn cover closure state of representative, extinguish described Panel light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950067800A KR0162838B1 (en) | 1995-12-30 | 1995-12-30 | Panel lamp control circuit for flip type portable telephone set |
| KR67800/95 | 1995-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1157519A true CN1157519A (en) | 1997-08-20 |
Family
ID=19447892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116764A Pending CN1157519A (en) | 1995-12-30 | 1996-12-30 | Circuit for controlling panel lamps in flip-type cellular telephone |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR0162838B1 (en) |
| CN (1) | CN1157519A (en) |
| GB (1) | GB2308939B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101516229B (en) * | 2006-09-29 | 2012-09-05 | 姜昌焕 | Storage case |
| CN103630149A (en) * | 2012-08-20 | 2014-03-12 | 艾默生过程控制流量技术有限公司 | Method of transmitter for controlling light-emitting unit of transmitter |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100318711B1 (en) * | 1998-06-18 | 2002-02-19 | 윤종용 | Digital handheld phone with character recognition in function mode and its method |
| GB2345410A (en) * | 1998-12-31 | 2000-07-05 | Nokia Mobile Phones Ltd | User interface control in portable device; battery saving |
| JP3028954B1 (en) * | 1999-01-05 | 2000-04-04 | 埼玉日本電気株式会社 | Mobile phone equipment |
| GB2356760B (en) * | 1999-11-23 | 2004-06-23 | Nokia Mobile Phones Ltd | A radiotelephone handset |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175759A (en) * | 1989-11-20 | 1992-12-29 | Metroka Michael P | Communications device with movable element control interface |
| JPH0774691A (en) * | 1993-08-31 | 1995-03-17 | Sanyo Electric Co Ltd | Portable telephone set with folding mechanism |
-
1995
- 1995-12-30 KR KR1019950067800A patent/KR0162838B1/en not_active IP Right Cessation
-
1996
- 1996-12-24 GB GB9626917A patent/GB2308939B/en not_active Expired - Lifetime
- 1996-12-30 CN CN96116764A patent/CN1157519A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101516229B (en) * | 2006-09-29 | 2012-09-05 | 姜昌焕 | Storage case |
| CN103630149A (en) * | 2012-08-20 | 2014-03-12 | 艾默生过程控制流量技术有限公司 | Method of transmitter for controlling light-emitting unit of transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0162838B1 (en) | 1998-12-01 |
| KR970055990A (en) | 1997-07-31 |
| GB2308939A (en) | 1997-07-09 |
| GB2308939B (en) | 1998-08-05 |
| GB9626917D0 (en) | 1997-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |