CN103051779A - Method for prompting incoming call/incoming message of mobile phone and device thereof - Google Patents
Method for prompting incoming call/incoming message of mobile phone and device thereof Download PDFInfo
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- CN103051779A CN103051779A CN2012105178919A CN201210517891A CN103051779A CN 103051779 A CN103051779 A CN 103051779A CN 2012105178919 A CN2012105178919 A CN 2012105178919A CN 201210517891 A CN201210517891 A CN 201210517891A CN 103051779 A CN103051779 A CN 103051779A
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Abstract
The invention discloses a method for prompting an incoming call/incoming message of a mobile phone and a device thereof. The method for prompting the incoming call/incoming message of the mobile phone comprises the following steps of: (1) interpolating an incoming call/incoming message prompting signal into an incoming call/incoming message ring audio file, and enabling a loudspeaker sound coil of the mobile phone to emit electromagnetic waves carrying a corresponding prompting signal while a ring is played by the mobile phone after the incoming call/incoming message is received; (2) sensing the prompting signal in the radiation range of the electromagnetic waves in the step (1) by using a prompting device which is independent of the mobile phone; and (3) enabling the prompting device to send a prompt of the incoming call/incoming message by taking the prompting signal obtained in the step (2) as a control signal for sending a prompt of the incoming call/incoming message. The method and the device have the characteristics of low cost, wide application range and small influence on the use of the mobile phone.
Description
Technical field
The present invention relates to a kind of cell phone incoming call/letter reminding method and device thereof.
Background technology
Along with the progress of technology, mobile phone is constantly toward lightening future development, therefore, the loud speaker of mobile phone, vibrating motor all must be chosen miniature device, brought the problem that volume is little, seismaesthesia is light, caused in recent years cell phone incoming call to miss ratio and raise all the more, the user has been caused very large puzzlement.
Chinese invention patent application prospectus CN200310122676.X discloses a kind of prompting device for cell phone coming call, this alarm set comprises radio signal launcher and radio signal receiving apparatus, wherein radio system and mobile phone split, be worn on it the user, radio signal launcher is plugged on the earphone jack of mobile phone by external plug, obtain the incoming call of mobile phone and come letter information with this, and sending to radio system by radio signal, radio system is according to incoming call or the corresponding warning reminding of making of letter situation.
Chinese invention patent application prospectus CN200410025236.7 discloses another kind of incoming call prompting device and method, this incoming call prompting device separates with mobile phone body, mobile phone sends incoming call and writes letters signal to this incoming call prompting device by the bluetooth communication mode, makes corresponding prompting to drive incoming call prompting device.
There is following shortcoming in above-mentioned incoming call prompting device:
The first, adopt wireless system to realize communicating by letter between mobile phone and the suggestion device, need to install radio transition equipment additional at mobile phone, mobile phone need to be powered to this equipment, and the stand-by time of mobile phone is affected with normal the use;
The second, adopt bluetooth approach to realize communicating by letter between mobile phone and the suggestion device, need to Bluetooth chip be set at suggestion device, cause the cost of suggestion device higher, and suggestion device can't be applied on the mobile phone of bluetooth enable not.
Summary of the invention
First purpose of the present invention provides a kind of cell phone incoming call/letter reminding method, its have low cost, applied widely, mobile phone is used the little characteristics of impact.
Second purpose of the present invention provides the device of implementing above-mentioned cell phone incoming call/letter reminding method.
First purpose of the present invention is to realize by following technical measures:
A kind of cell phone incoming call/letter reminding method is characterized in that described cell phone incoming call/letter reminding method may further comprise the steps:
(1) insert incoming call or letter cue in cell phone incoming call or letter the tinkle of bells audio file, when playing the tinkle of bells, the mobile phone speaker voice coil loudspeaker voice coil sends the electromagnetic wave that carries corresponding cue receiving incoming call or letter to make mobile phone;
(2) with being independent of suggestion device outside the mobile phone in the described cue of the described electromagnetic radiation scope internal induction of step (1);
(3) described suggestion device as the control signal of sending incoming call or letter prompting, makes suggestion device send the prompting of incoming call or letter with the cue of step (2) gained.
Wherein, in the effective operating frequency range of frequency at the mobile phone speaker voice coil loudspeaker voice coil of the incoming call described in the above-mentioned steps (1) or letter cue.
As a kind of improvement of the present invention, described cell phone incoming call/letter reminding method also adds following steps:
(4) make the mobile phone that is in silent mode when incoming call or letter, mobile phone speaker is play the audio frequency that only comprises incoming call or letter cue, the content of described cell phone incoming call or letter the tinkle of bells audio file is blank, and the frequency of described incoming call or letter cue is to exceed the audiorange that people's ear can be listened.
As one embodiment of the present invention, the method of suggestion device inductive hint signal is for responding to the electromagnetic wave signal of characteristic frequency in the described step (2) by frequency selection circuit is set, described incoming call or letter cue are binary digital FMcodef signal, and only " 0 " of this digital FMcodef signal modulation frequency digital or only " 1 " number of this digital FMcodef signal is within the passband of described suggestion device, thereby suggestion device is read the coded message of cue, so that suggestion device is made corresponding incoming call or letter prompting according to the content of this coded message.
Execution mode as the present invention's recommendation, the modulation frequency that " 0 " of described incoming call or letter cue is digital and " 1 " is digital is all more than 15kHz, in order to improve the interference free performance of cue, correspondingly, the passband of described suggestion device is also more than 15kHz, with arbitrary frequency representative " 0 " number in the passband of described suggestion device, carry out the binary digit FM encoding with arbitrary frequency representative " 1 " number more than the 15kHz and outside described passband; Perhaps, with arbitrary frequency representative " 1 " number in the described passband, carry out the binary digit FM encoding with arbitrary frequency representative " 0 " number more than the 15kHz and outside described passband.
As preferred implementation of the present invention, the passband of described suggestion device is in 16kHz to 20kHz, described incoming call or letter cue are with 15kHz frequency representative " 0 " number, select interior arbitrary frequency representative " 1 " number of described passband to carry out the binary digit FM encoding and form; Perhaps, with 15kHz frequency representative " 1 " number, select interior arbitrary frequency representative " 0 " number of described passband to carry out the binary digit FM encoding and form.Because 16kHz to 20kHz frequency is more than the band limits of most voice and musical instrument, suggestion device would not be disturbed by the electromagnetic wave signal of cell phone incoming call or the generation of letter the tinkle of bells itself sense of this 16kHz to 20kHz frequency electromagnetic wave signal, and the broadcast of this cue can not be heard for people's ear, can be fit to the normal answer mode of mobile phone or quiet answer mode.
As one embodiment of the present invention, described incoming call or letter cue can be with clear band representative " 0 " number, select interior arbitrary frequency representative " 1 " number of described passband to carry out the binary digit FM encoding and form; Perhaps, with clear band representative " 1 " number, select interior arbitrary frequency representative " 0 " number of described passband to carry out the binary digit FM encoding and form.
Second purpose of the present invention is to realize by following technical measures:
A kind of cell phone incoming call/letter suggestion device, comprise the signal receiving module, decoding driver module and the reminding module that connect successively, it is characterized in that described signal receiving module is frequency selection circuit, the electromagnetic radiation scope internal induction that described frequency selection circuit sends for the loudspeaker voice coil at mobile phone extracts cell phone incoming call or the letter cue of characteristic frequency, described decoding driver module then is used for cue decoding that frequency selection circuit is extracted, and drives described reminding module with decoded cue and send corresponding prompting.Cell phone incoming call of the present invention/letter suggestion device is independent of outside the mobile phone, special signalization sending module, but within the electromagnetic radiation scope that the loudspeaker voice coil that places mobile phone sends, the electromagnetic wave that the loudspeaker voice coil by mobile phone sends directly with mobile phone realization radio communication.
As one embodiment of the present invention, described frequency selection circuit comprises the LC antiresonant circuit, described decoding driver module comprises signal amplification circuit, is used for the decoding circuit that described cue is decoded and the drive circuit that is used for driving described reminding module work, and described LC antiresonant circuit, signal amplification circuit, decoding circuit, drive circuit are connected successively with reminding module.
In order to improve suggestion device to electromagnetic receiving ability, as a kind of improvement of the present invention, described frequency selection circuit has additional one or two described LC antiresonant circuit and is used for selecting the signal selecting circuit of strong input signal, the central axis direction of the magnetic induction coil of each LC antiresonant circuit is mutually vertical setting between any two, each described LC antiresonant circuit is connected respectively to the respective input of signal selecting circuit, the output of signal selecting circuit is connected to the input of described decoding circuit by described signal amplification circuit, exports to decoding circuit after the amplification that select-out signal is the strongest from the cue of each LC antiresonant circuit input of described signal selecting circuit.
As one embodiment of the present invention, described reminding module comprises buzzer, Light-Emitting Diode at least, vibrating motor is a kind of or the combination more than two kinds and be used for to show incoming call or come the display screen of signal code; Described buzzer, Light-Emitting Diode, vibrating motor and display screen are connected respectively to the corresponding output end of drive circuit.Suggestion device is made incoming call, letter prompting to the user simultaneously from sound, light, vibrations three aspects:, effectively reduces the miss rate of phone, letter.
Compared with prior art, the present invention has following beneficial effect:
First, the electromagnetic wave that the present invention produces when utilizing the work of mobile phone speaker voice coil loudspeaker voice coil sends the medium of cue to suggestion device as mobile phone, need not to install any equipment additional at mobile phone, therefore mobile phone need not to increase extra power consumption, can not affect the original work of mobile phone when incoming call, letter prompting;
Second, incoming call of the present invention or letter cue can be carried on the audio frequency of incoming call or letter the tinkle of bells by existing computer software or cell phone software, its applicability is strong, and the mobile phone of new old model all can be implemented, and is easy to realize applying and need not to increase user's use cost;
The 3rd, suggestion device of the present invention realizes that by frequency selection circuit its cost is extremely low to the reception of incoming call/letter cue, and by a plurality of LC antiresonant circuits and signal selecting circuit are set, makes suggestion device obtain higher receiving ability.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the theory diagram of the embodiment of the invention one;
Fig. 2 loads the incoming call prompting code signal for example at the tinkle of bells audio frequency;
Fig. 3 is the theory diagram of the embodiment of the invention two;
Fig. 4 is the circuit theory diagrams of the embodiment of the invention two suggestion devices.
Embodiment
Embodiment one
As shown in Figure 1, the electromagnetic wave that sent by direct induction mobile phone speaker voice coil loudspeaker voice coil by the suggestion device that is independent of outside the mobile phone of the cell phone incoming call of the embodiment of the invention one/letter reminding method is implemented incoming call/letter prompting.Wherein, all possesses the loud speaker that loudspeaker or receiver and so on are arranged on the existing mobile phone, and be provided with incoming ring tone audio frequency and letter the tinkle of bells audio frequency, when using cell phone incoming call of the present invention/letter suggestion device, only need application program real-time loading pre-loaded by computer software or by embedded in mobile phone, can make to add respectively in the incoming ring tone audio frequency of existing mobile phone and the letter the tinkle of bells audio frequency and plug incoming call required for the present invention/letter cue, comprise incoming call when mobile phone is silent mode/letter cue; Incoming call prompting signal in the present embodiment and letter cue all are with 15kHz frequency representative " 0 " number, carrying out the binary digit FM encoding with 20kHz frequency representative " 1 " number forms, their frequency is all in effective operating frequency range of mobile phone speaker voice coil loudspeaker voice coil, because playing, 20kHz frequency electromagnetic wave signal can not hear for people's ear, and the broadcast of 15kHz frequency electromagnetic wave signal also is unheard for most adults, therefore, even when mobile phone is in silent mode, also can be suitable for.By incoming call prompting signal and letter cue are carried out digital FMcodef, can be so that they have different contents, thereby after making cell phone incoming call of the present invention/letter suggestion device read the code signal of incoming call or letter cue, can make different incoming calls or letter prompting as control signal with it.Be illustrated in figure 2 as cue coding example, inserted one section incoming call prompting signal S2 with " 20kHz, 15kHz, 20kHz, 15kHz, 20kHz, 20kHz " sequential encoding at the tinkle of bells audio frequency S1.
When use is of the present invention, mobile phone is play incoming call or letter the tinkle of bells audio frequency when receiving incoming call or letter, accordingly, the mobile phone speaker voice coil loudspeaker voice coil sends the electromagnetic wave that carries incoming call or letter cue, cell phone incoming call of the present invention/letter suggestion device namely from this electromagnetic wave induction extract corresponding cue as the control signal of sending incoming call or letter prompting, make suggestion device send the prompting of incoming call or letter; For being in the mobile phone under the silent mode, in fact be adopt a content for blank audio file as above-mentioned cell phone incoming call the tinkle of bells audio frequency and letter the tinkle of bells audio frequency, because the audio frequency of inserting that present embodiment is selected is to exceed the audio frequency that people's ear can be listened or the adult is difficult to hear, the incoming call or the letter cue that are about to this frequency add in the cell phone incoming call the tinkle of bells audio frequency and letter the tinkle of bells audio frequency that is inserted in the content blank, then make mobile phone when incoming call or letter, mobile phone speaker voice coil loudspeaker voice coil reality is only sent the electromagnetic wave that incoming call or letter cue are arranged that this inserts, the cue that makes the present invention still can sense incoming call or letter in the quiet situation of mobile phone.
Suggestion device in the present embodiment is by the frequency selection circuit that is used for extracting incoming call and letter cue, signal amplification circuit, for the decoding circuit that cue is decoded, drive circuit and the reminding module composition of sending a telegram here/writing letters and pointing out for carrying out, wherein frequency selection circuit is the LC antiresonant circuit, the resonance frequency of LC antiresonant circuit is 20kHz, its upper limiting frequency and lower frequency limit are all close to resonance frequency, passband is very narrow, so that only send a telegram here and " 1 " the digital frequency of writing letters in the cue drop in the passband of LC antiresonant circuit, it has good selectivity to incoming call and letter cue; Reminding module is then by buzzer, Light-Emitting Diode, vibrating motor be used for realizing incoming call or coming the display screen of signal code to form, LC antiresonant circuit, signal amplification circuit, decoding circuit, drive circuit and reminding module are connected successively, buzzer, Light-Emitting Diode, concussion motor and display screen are connected respectively to the corresponding output end of drive circuit, and the LC antiresonant circuit realizes that with mobile phone radio communication is connected by the electromagnetic wave that voice coil loudspeaker voice coil gives off.
When using the cell phone incoming call of present embodiment/letter suggestion device, be placed in the electromagnetic radiation scope that the mobile phone speaker voice coil loudspeaker voice coil sends, when the letter such as cell phone incoming call or note or E-mail, the social software communication of mobile phone, cell phone software renewal, mobile phone is play respectively the corresponding the tinkle of bells audio frequency that is loaded with cue, principle of sound according to loud speaker, the voice coil loudspeaker voice coil of loud speaker produces the electromagnetic wave that carries corresponding cue information, and this electromagenetic wave radiation is outside mobile phone; Suggestion device extracts corresponding cue in this electromagnetic radiation scope, be that its LC antiresonant circuit is passed through the frequency-selecting amplification to the electromagnetic wave signal of this characteristic frequency of 20kHz, the inhibitory action that other frequency is comprised 15kHz frequency electromagnetic wave signal, produce corresponding to the induced voltage of incoming call or letter cue coding at two ends and export to decoding circuit, this cue is decoded and start drive circuit via decoding circuit, driving reminding module by drive circuit sends a telegram here according to this cue coded message content or writes letters prompting, it namely can be the sound horn prompting, the lumination of light emitting diode prompting, the vibrating motor vibration prompting, display screen shows incoming call, any one prompting in the letter number information prompting mode, perhaps any two above combination prompting.In addition, when the situation that is in silent mode at mobile phone issues from birth electricity or letter, because the incoming call prompting signal in the present embodiment and letter cue add in the cell phone incoming call the tinkle of bells audio frequency and letter the tinkle of bells audio frequency that is inserted in the content blank, mobile phone speaker is play this incoming call or letter audio frequency, so that suggestion device still is able to the incoming call/letter situation by incoming call or letter cue induction mobile phone, thereby can drive reminding module only points out with lumination of light emitting diode and vibrating motor vibrations, and the loud speaker of mobile phone is sounding not, makes mobile phone and suggestion device all can keep quiet.Cue coding example as shown in Figure 2, the LC antiresonant circuit of present embodiment receives incoming call prompting signal S2 by electromagnetic wave induction, its two ends produce the induced voltage of " high level, low level, high level, low level, high level, high level ", corresponding to " 1,0,1,0,1,1 " coding of this incoming call prompting signal S2.In like manner, can work out the letter cue and realize that induction receives, such as " 1,1,0,0,1,1 ".
Embodiment two
As shown in Figure 3, the embodiment of the invention two and embodiment one cell phone incoming call/the letter suggestion device is basic identical, its difference is: the frequency selection circuit in the present embodiment two has additional two LC antiresonant circuits and is used for selecting the signal selecting circuit of strong input signal, the central axis direction of the magnetic induction coil of three LC antiresonant circuits is mutually vertical setting between any two, namely snap to respectively the X of rectangular coordinate system, Y, Z axis, each LC antiresonant circuit is connected respectively to the respective input of signal selecting circuit, the output of signal selecting circuit is connected to the input of decoding circuit by signal amplification circuit, three LC antiresonant circuits respectively frequency-selecting receive the cue in the electromagnetic wave and export to signal selecting circuit, because electromagnetic magnetic axis directivity, the cue of three LC antiresonant circuit receptions has different signal strength signal intensities, exports to decoding circuit after the signal selecting circuit amplification that therefrom select-out signal is the strongest.
As shown in Figure 4, the X-axis LC antiresonant circuit A1 of present embodiment two is comprised of the capacitor C 10 that is in parallel and inductance L 1, metal-oxide-semiconductor Q2 and electric capacity, and Y-axis LC antiresonant circuit A2 is identical with the building form of X-axis LC antiresonant circuit A1 with Z axis LC antiresonant circuit A3; Signal selecting circuit A4 is by the relatively the strongest cue of input voltage select-out signal of three LC antiresonant circuits, and it adopts voltage comparator circuit form commonly used in the prior art; Signal amplification circuit A5 is comprised of operational amplifier U2A and peripheral circuit thereof; It is the decoding chip composition of PT-2272 that decoding circuit A6 selects model; Drive circuit is comprised of single-chip microcomputer U3 and peripheral circuit thereof, its cooperate corresponding program with the signal of decoding chip output as control signal, control respectively that Light-Emitting Diode LED1, LED2 and buzzer U5 make incoming call, letter is pointed out.Select the mobile phone with 0.5W voice-coil speaker as tested object, through test, the suggestion device of the embodiment of the invention two can be stablized the reception cue and make incoming call, letter prompting at least 0.5 meter scope.
In addition, Some technical measures among above-described embodiment one and the embodiment two is made change, do not affect the technique effect of enforcement and the generation of scheme: be arranged in the 16kHz to 20kHz such as the passband with cell phone incoming call/letter suggestion device, and select the arbitrary frequency in this passband to represent " 1 " number, namely be that above-mentioned incoming call prompting signal and letter cue all are with 15kHz frequency representative " 0 " number terrifically, carrying out the binary digit FM encoding with 16kHz frequency representative " 1 " number forms, and the resonance frequency of LC antiresonant circuit is set to 16kHz, and the technique effect that scheme produces is constant; Digital and " 1 " digital coding frequency exchange such as " 0 ", the technique effect that scheme produces is constant; Digital and " 1 " digital modulation frequency is all more than 15kHz such as " 0 " of incoming call or letter cue, the passband of suggestion device is also more than 15kHz, with arbitrary frequency representative " 0 " number in the passband of suggestion device, carry out the binary digit FM encoding with arbitrary frequency representative " 1 " number more than the 15kHz and outside passband; Perhaps, with the representative of the arbitrary frequency in the passband " 1 " number, arbitrary frequency representative " 0 " number with more than the 15kHz and outside passband carries out the binary digit FM encoding, and suggestion device can respond to equally to extract and sends a telegram here or write letters cue; With clear band representative " 0 " number such as incoming call or letter cue, selecting interior arbitrary frequency representative " 1 " number of described passband to carry out the binary digit FM encoding forms, perhaps, with clear band representative " 1 " number, select arbitrary frequency representative " 0 " number in the described passband to carry out the binary digit FM encoding and form, suggestion device can respond to equally to extract and sends a telegram here or write letters cue; And for example only set up a LC antiresonant circuit and signal selecting circuit among the embodiment two, perhaps the frequency selection circuit among embodiment one and the embodiment two selects RLC antiresonant circuit or RLC series resonant circuit or LC series resonant circuit etc. to have the frequency-selective network of selecting frequency characteristic, and frequency selection circuit can both be responded to proposition incoming call or letter cue from electromagnetic wave.
The present invention does not limit to and above-mentioned embodiment; according to foregoing; ordinary skill knowledge and customary means according to this area; do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite; the present invention can also make equivalent modifications, replacement or the change of other various ways; as long as the electromagnetic wave that produces when working with the mobile phone speaker voice coil loudspeaker voice coil all drops among protection scope of the present invention as the medium of mobile phone to the cue of suggestion device transmission incoming call/letter.
Claims (10)
1. cell phone incoming call/letter reminding method, it is characterized in that: described cell phone incoming call/letter reminding method may further comprise the steps:
(1) insert incoming call or letter cue in cell phone incoming call or letter the tinkle of bells audio file, when playing the tinkle of bells, the mobile phone speaker voice coil loudspeaker voice coil sends the electromagnetic wave that carries corresponding cue receiving incoming call or letter to make mobile phone;
(2) with being independent of suggestion device outside the mobile phone in the described cue of the described electromagnetic radiation scope internal induction of step (1);
(3) described suggestion device as the control signal of sending incoming call or letter prompting, makes suggestion device send the prompting of incoming call or letter with the cue of step (2) gained.
2. cell phone incoming call according to claim 1/letter reminding method is characterized in that: the frequency of the incoming call described in the step (1) or letter cue is in effective operating frequency range of mobile phone speaker voice coil loudspeaker voice coil.
3. cell phone incoming call according to claim 2/letter reminding method, it is characterized in that: described cell phone incoming call/letter reminding method also adds following steps:
(4) make the mobile phone that is in silent mode when incoming call or letter, mobile phone speaker is play the audio frequency that only comprises incoming call or letter cue, the content of described cell phone incoming call or letter the tinkle of bells audio file is blank, and the frequency of described incoming call or letter cue is to exceed the audiorange that people's ear can be listened.
4. according to claim 1 to 3 each described cell phone incoming call/letter reminding methods, it is characterized in that: the method for suggestion device inductive hint signal is for responding to the electromagnetic wave signal of characteristic frequency in the described step (2) by frequency selection circuit is set, described incoming call or letter cue are binary digital FMcodef signal, and only " 0 " of this digital FMcodef signal digital or only the digital modulation frequency in " 1 " of this digital FMcodef signal within the passband of described suggestion device, thereby suggestion device is read the coded message of cue.
5. cell phone incoming call according to claim 4/letter reminding method, it is characterized in that: " 0 " number of described incoming call or letter cue and the modulation frequency of " 1 " number are all more than 15kHz, the passband of described suggestion device is also more than 15kHz, with arbitrary frequency representative " 0 " number in the passband of described suggestion device, carry out the binary digit FM encoding with arbitrary frequency representative " 1 " number more than the 15kHz and outside described passband; Perhaps, with arbitrary frequency representative " 1 " number in the described passband, arbitrary frequency representative " 0 " number with more than the 15kHz and outside described passband carries out the binary digit FM encoding.
6. cell phone incoming call according to claim 5/letter reminding method, it is characterized in that: the passband of described suggestion device is in 16kHz to 20kHz, described incoming call or letter cue are with 15kHz frequency representative " 0 " number, select interior arbitrary frequency representative " 1 " number of described passband to carry out the binary digit FM encoding and form; Perhaps, with 15kHz frequency representative " 1 " number, select interior arbitrary frequency representative " 0 " number of described passband to carry out the binary digit FM encoding and form.
7. cell phone incoming call according to claim 4/letter reminding method, it is characterized in that: described incoming call or letter cue are with clear band representative " 0 " number, select interior arbitrary frequency representative " 1 " number of described passband to carry out the binary digit FM encoding and form; Perhaps, with clear band representative " 1 " number, select interior arbitrary frequency representative " 0 " number of described passband to carry out the binary digit FM encoding and form.
8. device that uses any cell phone incoming call of aforementioned claim 1 to 7/letter reminding method, comprise the signal receiving module that connects successively, decoding driver module and reminding module, it is characterized in that: described signal receiving module is frequency selection circuit, the electromagnetic radiation scope internal induction that described frequency selection circuit sends for the loudspeaker voice coil at mobile phone extracts cell phone incoming call or the letter cue of characteristic frequency, described decoding driver module then is used for cue decoding that frequency selection circuit is extracted, and drives described reminding module with decoded cue and send corresponding prompting.
9. cell phone incoming call according to claim 8/letter suggestion device, it is characterized in that: described frequency selection circuit comprises the LC antiresonant circuit, described decoding driver module comprises signal amplification circuit, is used for the decoding circuit that described cue is decoded and the drive circuit that is used for driving described reminding module work, and described LC antiresonant circuit, signal amplification circuit, decoding circuit, drive circuit are connected successively with reminding module.
10. cell phone incoming call according to claim 9/letter suggestion device, it is characterized in that: described frequency selection circuit has additional one or two described LC antiresonant circuit and is used for selecting the signal selecting circuit of strong input signal, the central axis direction of the magnetic induction coil of each LC antiresonant circuit is mutually vertical setting between any two, each described LC antiresonant circuit is connected respectively to the respective input of signal selecting circuit, the output of signal selecting circuit is connected to the input of described decoding circuit by described signal amplification circuit, exports to decoding circuit after the amplification that select-out signal is the strongest from the cue of each LC antiresonant circuit input of described signal selecting circuit.
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Application publication date: 20130417 |