CN206833915U - A kind of remote control, FM Receiver and K song systems - Google Patents
A kind of remote control, FM Receiver and K song systems Download PDFInfo
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- CN206833915U CN206833915U CN201720188425.9U CN201720188425U CN206833915U CN 206833915 U CN206833915 U CN 206833915U CN 201720188425 U CN201720188425 U CN 201720188425U CN 206833915 U CN206833915 U CN 206833915U
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Abstract
The utility model belongs to audio signal processing technique field, there is provided a kind of remote control, FM Receiver and K song systems.Remote control includes：Sound collection processing module, signal modulation module and signal emission module；The output end of sound collection processing module and the input of signal modulation module are connected, and signal emission module input is connected with signal modulation module output end；Sound collection processing module obtains voice signal, and voice signal is amplified and amplitude limiting processing；Signal modulation module by through amplification and amplitude limiting processing after voice signal be modulated into radiofrequency signal, signal emission module is by emission of radio frequency signals to FM Receiver；Radiofrequency signal is used for：FM Receiver is demodulated to radiofrequency signal, decode and signal enhanced processing after export corresponding audio signal to television set, so as to realize K song functions, large-scale receiving platform need not be configured, solves the problems, such as that cost existing for existing KTV systems is high and space-consuming is big.
Description
Technical field
The utility model belongs to audio signal processing technique field, more particularly to a kind of remote control, FM Receiver and K songs
System.
Background technology
It is greatly improved with continuous progressive and development, the people's living standard of social science, people are raw to spirit
Living to propose higher requirement, numerous entertainment way enriches the life of people, KTV as a kind of common entertainment way,
Set of K song system is mainly made up of song-order machine, display screen and sound equipment, the set of K songs system of increasing domestic installation,
For family's amusement and recreation, TV is as the most frequently used household electrical appliance, it is desirable to provide more amusement functions are to meet people's
It is required that such as offer K song functions.But microphone all in existing K songs system uses wireless microphone, wireless wheat mostly
Gram wind is substantially all using 800M/900M modulation systems, needs to configure a bulky receiving platform in this way, then
Receiving platform is linked into the audio input port of system, therefore existing KTV systems have that cost is high and space-consuming is big asks
Topic.
Utility model content
The purpose of this utility model is to provide a kind of remote control, FM Receiver and K song systems, it is intended to solves existing
KTV systems the problem of cost is high and space-consuming is big be present.
The utility model provides a kind of remote control, and the remote control includes：Sound collection processing module, signal modulation mould
Block and signal emission module；
The output end of the sound collection processing module is connected with the input of the signal modulation module, the signal hair
Module input is penetrated to be connected with the signal modulation module output end；
The sound collection processing module obtains voice signal, and the voice signal is amplified and amplitude limiting processing；
The signal modulation module will be modulated into radiofrequency signal by amplifying with the voice signal after amplitude limiting processing, and the signal launches mould
Block is by the emission of radio frequency signals to FM Receiver；
The radiofrequency signal is used for：The FM Receiver is demodulated to the radiofrequency signal, decode and signal is put
Corresponding audio signal is exported to television set after big processing.
The utility model additionally provides a kind of FM Receiver, is connected with television set, and the FM Receiver includes：
Signal receiving module, signal processing module and signal output module；
The output end of the signal receiving module is connected with the input of the signal processing module, the signal transacting mould
The output end of block is connected with the input of the signal output module；
The signal receiving module receives the radiofrequency signal transmitted by the remote control of the television set, the signal transacting mould
Block is demodulated to the radiofrequency signal, decode and signal enhanced processing after obtain corresponding audio signal, the signal output
Module exports the audio signal to the television set.
The utility model additionally provides a kind of K songs system, including television set, and this K song systems also include above-mentioned remote control
With above-mentioned FM Receiver.
Remote control, FM Receiver and K song systems provided by the utility model, by setting sound collection in remote control
Processing module, signal modulation module and signal emission module, voice signal is obtained by sound collection processing module, and to this
Voice signal be amplified with after amplitude limiting processing, then by signal modulation module will through amplification and amplitude limiting processing after sound letter
Number radiofrequency signal is modulated into, by signal emission module by the signal receiving module of the emission of radio frequency signals to FM Receiver,
The signal processing module of FM Receiver is demodulated to the radiofrequency signal received, decode and signal enhanced processing after obtain
Corresponding audio signal, finally the audio signal is exported to television set via signal output module, so as to realize K song functions,
Large-scale receiving platform need not be configured, solves the problems, such as that cost existing for existing KTV systems is high and space-consuming is big.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation for the remote control that the utility model embodiment one provides；
Fig. 2 is the structural representation for the remote control that the utility model embodiment one provides；
Fig. 3 is the electrical block diagram for the remote control that the utility model embodiment one provides；
Fig. 4 is the structural representation for the FM Receiver that the utility model embodiment two provides；
Fig. 5 is the electrical block diagram for the FM Receiver that the utility model embodiment two provides；
Fig. 6 is the structural representation for the K song systems that the utility model embodiment three provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
It should be noted that term " comprising " in specification and claims of the present utility model and they are any
Deformation, it is intended that cover non-exclusive include.Such as system, product or the equipment comprising a series of units are not limited to
The unit listed, but alternatively also include the unit do not listed, or alternatively also include consolidating for these products or equipment
The other units having.In addition, term " first ", " second " and " the 3rd " etc. is to be used to distinguish different objects, not for description
Particular order.
The utility model embodiment in order to solve the problems, such as existing for existing KTV systems that cost is high and space-consuming is big,
A kind of remote control, FM Receiver and K song systems are provided, by setting sound collection processing module, signal in remote control
Modulation module and signal emission module, voice signal is obtained by sound collection processing module, and the voice signal is carried out
Amplification and amplitude limiting processing after, then by signal modulation module will through amplification and amplitude limiting processing after voice signal be modulated into radio frequency
Signal, by signal emission module by the signal receiving module of the emission of radio frequency signals to FM Receiver, FM Receiver
Signal processing module the radiofrequency signal received is demodulated, decode and signal enhanced processing after obtain corresponding audio letter
Number, finally the audio signal is exported to television set via signal output module, K just can be realized without configuring large-scale receiving platform
Function is sung, efficiently solves the problem of cost existing for existing KTV systems is high and space-consuming is big.
In order to illustrate above-mentioned remote control, FM Receiver and K song systems, carried out below in conjunction with specific embodiment detailed
Describe in detail bright：
Embodiment one：
Fig. 1 show the utility model embodiment one provide remote control structure, for convenience of description, illustrate only with
The related part of the embodiment of the present invention, details are as follows：
Remote control 10 includes：Sound collection processing module 110, signal modulation module 120 and signal emission module 130.
The output end of sound collection processing module 110 is connected with the input of signal modulation module 120, signal emission module
130 inputs are connected with the output end of signal modulation module 120.
Sound collection processing module 110 obtains voice signal, and voice signal is amplified and amplitude limiting processing；Signal is adjusted
Molding block 120 by through amplification and amplitude limiting processing after voice signal be modulated into radiofrequency signal, signal emission module 130 is by radio frequency
Signal is launched to FM Receiver 20.
Radiofrequency signal is used for：FM Receiver is demodulated to radiofrequency signal, decode and signal enhanced processing after export
Corresponding audio signal is to television set.
Further, as shown in Fig. 2 tut acquisition processing module 110 is included at sound collection unit 111 and sound
Manage unit 112.
Sound collection unit 111 is connected with the input of sound processing unit 112, the output end of sound processing unit 112
For the output end of sound collection processing module 111；Sound collection unit 111 is acquired to sound and exports corresponding sound letter
Number, voice signal is amplified sound processing unit 112 and amplitude limiting processing.
Specifically, tut collecting unit 111 can be microphone or sound pick-up in the utility model embodiment,
It can be the element that other can gather sound.
It should be noted that the remote control 10 that the utility model embodiment provides can carry out traditional remote control to TV and grasp
Make, and can obtains voice signal by sound collection processing module 110, and the voice signal is amplified and amplitude limiting processing
Afterwards, radiofrequency signal will be modulated into the voice signal after amplitude limiting processing by amplifying by signal modulation module 120, then passes through letter
The emission of radio frequency signals to FM Receiver 20 is realized transmitting and the voice signal phase collected by number transmitter module 130
The function for the radiofrequency signal answered.
Exemplary, above-mentioned remote control 10 can include a master remote controller and a sub remote controller, master remote controller are used for
Realize and traditional straighforward operation is carried out to TV and voice signal is acquired, handle and modulated, sub remote controller is used to realize
Radiofrequency signal after modulation is launched.
Fig. 3 shows the circuit structure for the remote control 10 that the utility model embodiment one provides, and for convenience of description, only shows
The part related to the utility model embodiment is gone out, details are as follows：
As shown in figure 3, as the embodiment of the utility model one, sound processing unit 111 includes：
First resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6,
Seven resistance R7, the 8th resistance R8, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5,
Six electric capacity C6, the first NPN type triode Q1, the first diode D1 and the second diode D2.
First resistor R1 first end be sound processing unit 112 input, first resistor R1 the second end and first
Electric capacity C1 first end connection, the first electric capacity C1 the second end ground connection, the of the second electric capacity C2 first end and the first electric capacity C1
One end is connected, and the second electric capacity C2 the second end ground connection, second resistance R2 first end is connected with the second electric capacity C2 first end, the
Two resistance R2 the second end is connected with the first NPN type triode Q1 colelctor electrode, 3rd resistor R3 first end and second resistance
R2 first end connection, 3rd resistor R3 the first termination dc source VCC, 3rd resistor R3 the second end and the 4th resistance R4
First end connection, the 4th resistance R4 the second end is connected with the 5th electric capacity C5 the second end, the first diode D1 negative electrode and
4th resistance R4 first end connection, the first diode D1 plus earth, the second diode D2 anode and the first diode
D1 negative electrode connection, the second diode D2 minus earth, the 3rd electric capacity C3 first end connect with first resistor R1 first end
Connect, the 3rd electric capacity C3 the second end is connected with the 5th resistance R5 first end, the 5th resistance R5 second the first NPN type three of termination
Pole pipe Q1 colelctor electrode, the 4th electric capacity C4 first the first NPN type triode Q1 of termination base stage, the 4th electric capacity C4 first end
First end also with the 5th resistance R5 is connected, the 4th electric capacity C4 the second end ground connection, the first NPN type triode Q1 emitter stage with
6th resistance R6 first end connection, the 6th resistance R6 the second end ground connection, the 5th electric capacity C5 first the first NPN type three of termination
Pole pipe Q1 colelctor electrode, the 5th electric capacity C5 the second the 7th resistance R7 of termination first end, the 8th resistance R8 first end and the
Seven resistance R7 first end connection, the 6th electric capacity C6 the first the 8th resistance R8 of termination first end, the second of the 6th electric capacity C6
End ground connection, the 7th resistance R7 the second end and the output end that the 8th resistance R8 the second end is sound processing unit 112.
Signal modulation module 120 includes：First switch S1, second switch S2, the 3rd switch S3, the 4th switch S4, the 5th
Switch S5, the 7th electric capacity C7, the 8th electric capacity C8, the first crystal oscillator Y1, the 9th electric capacity C9, the tenth electric capacity C10, the 9th resistance R9, the
Ten resistance R10, the first inductance L1 and signal modulation chip U1.
Signal modulation chip U1 the first input pin INL and the second input pin INR collectively forms signal modulation module
120 input, first switch S1 first end are connected with signal modulation chip U1 the first frequency-selecting pin SW1, first switch
S1 the second end ground connection, second switch S2 first end are connected with signal modulation chip U1 the second frequency-selecting pin SW2, and second opens
S2 the second end ground connection is closed, the 3rd switch S3 first end is connected with signal modulation chip U1 the 3rd frequency-selecting pin SW1, and the 3rd
S3 the second end ground connection is switched, the 4th switch S4 first end is connected with signal modulation chip U1 the 4th frequency-selecting pin SW4, the
Four switch S4 the second end ground connection, the 5th switch S5 first end are connected with signal modulation chip U1 the 5th frequency-selecting pin SW5,
5th switch S5 the second end ground connection；7th electric capacity C1 first the first crystal oscillator Y1 of termination first end, the of the first crystal oscillator Y1
One termination signal modulation chip U1 the first crystal oscillator pin CK1, the 7th electric capacity C7 the second end ground connection, the first of the 8th electric capacity C8
Terminate the first crystal oscillator Y1 the second end, the first crystal oscillator Y1 the second termination signal modulation chip U1 the second crystal oscillator pin CK2,
Eight electric capacity C8 the second end ground connection；9th resistance R9 the first termination signal modulation chip U1 the first filtering pin RC1, the 9th
Resistance R9 the second the 9th electric capacity C9 of termination first end, the 9th electric capacity C9 the second end ground connection, the tenth electric capacity C10 first end
It is connected with the 9th resistance R9 first end, the tenth electric capacity C10 the first termination signal modulation chip U1 the second filtering pin
RC2；Tenth resistance R10 first end and the second end are anti-with signal modulation chip U1 the first feedback pin MPX1 and second respectively
Present pin MPX2 connections, the first inductance L1 first end and the second end the first voltage-controlled pin with signal modulation chip U1 respectively
The voltage-controlled pin VCO2 connections of VCO1 and second；Signal modulation chip U1 the first output pin OUT1 and the second output pin OUT2
Collectively form the output end of signal modulation module.
Signal emission module 130 includes：Second inductance L2, the 11st electric capacity C11, the 12nd electric capacity C12, the 13rd electric capacity
C13, the 14th electric capacity C14, the 11st resistance R11, the inductance L3 of the second NPN type triode Q2 the 3rd, the 4th inductance L4, the 15th
Electric capacity C15, the 16th electric capacity C16 and first antenna Y2.
Second inductance L2 first end and the second end are the input of signal emission module 130, the of the 11st electric capacity C11
One the second inductance L2 of termination first end, the 11st electric capacity C11 the second end ground connection, the 12nd electric capacity C12 the first termination the
11 electric capacity C11 first end, the 12nd electric capacity C12 the second end ground connection, the 13rd electric capacity C13 electricity of the first termination the 12nd
Hold C12 first end, the 13rd electric capacity C13 the second end ground connection, the of the 14th electric capacity C14 first the second inductance L2 of termination
Two ends, the 14th electric capacity C14 the second the 11st resistance R11 of termination first end, the 11st resistance R11 the second termination second
NPN type triode Q2 colelctor electrode, the 14th electric capacity C14 the second end are connected with the second NPN type triode Q2 base stage, and second
NPN type triode Q2 grounded emitter, the 3rd inductance L3 the first termination power VCC and with the first of the 13rd electric capacity C13
End connection, the second end of the 3rd inductance L3 the second the 11st resistance of termination, the 15th electric capacity C15 the first the 3rd inductance of termination
L3 the second end, the 4th inductance L4 the first termination first antenna Y2, the 15th electric capacity C15 the second the 4th inductance L4's of termination
Second end, the 16th electric capacity C16 the first the 4th inductance L4 of termination the second end, the 16th the second ends of electric capacity C16 ground connection.
Above-mentioned remote control 10 is described further below in conjunction with operation principle and Fig. 3：
It should be noted that sound collection unit 111 uses the small microphone of electret, there is the characteristics of high sensitivity, can be with
Collect faint sound.First resistor R1 provides Dc bias so that the small microphone of above-mentioned electret for the small microphone of above-mentioned electret
Work.
The voice signal that the small microphone of electret collects by the 3rd electric capacity C3 couple and the 5th resistance R5 matching after input
To the first triode Q1 base stage, processing is amplified to the voice signal by the first triode Q1, the first diode D1 and
Second diode D2 reverse parallel connections, the function of double limiting is realized, due to the first diode D1 and the second diode D2 conducting
Voltage is 0.7V, if signal voltage will be shunted more than 0.7V by the first diode D1 and the second diode D2 conductings, therefore,
The amplitude of voice signal can be limited.
First switch S1, second switch S2, the 3rd switch S3, the 4th switch S4, the 5th switch S5 are Frequency Band Selection selections
Switch, working frequency range can be selected by above-mentioned switch.First crystal oscillator Y1, the 7th electric capacity C7 and the 8th electric capacity C8 composition signals are adjusted
Coremaking piece U1 oscillating circuit, 7.6Mhz reference clock is provided for signal modulation chip U1.9th electric capacity C9, the tenth electric capacity
C10, the 9th resistance R9 are signal modulation chip U1 low-pass filter circuit, and the tenth resistance R10 is feedback resistance, become the by receiving
Ten resistance R10 resistance can realize regulation to the size of volume and regulation to the modulation degree of radiofrequency signal, the first inductance
L1 connections signal modulation chip U1 simultaneously forms a complete voltage controlled oscillator, the first electricity with the internal circuit of signal modulation chip
Sense L1 must use wire-wound inductor or air core inductor.Signal modulation chip U1 is by by amplifying and the voice signal after amplitude limiting processing
It is modulated into radiofrequency signal.
Second inductance L2 is that the signal emission module 130 is powered, and the 14th electric capacity C14 is coupled capacitor, the second triode
Q2 and the 11st resistance R11 forms a rf power amplifier circuit, and the 4th inductance L4 is first antenna Y2 matching inductance, the
15 electric capacity C15 are RF-coupled electric capacity, there is a direct-to-ground capacitance between the 15th electric capacity C15 and the 4th inductance L4, i.e.,
16 electric capacity C16.For different first antenna Y2, it is necessary to adjust the 15th electric capacity C15 and the 4th inductance L4 value to reach
Optimal launching effect.
The remote control 10 that the utility model embodiment one provides by the collected sound signal of sound collection unit 111, via
The voice signal collected is amplified sound processing unit 112 and amplitude limiting processing, then will be passed through by signal modulation chip U1
Voice signal after amplification and amplitude limiting processing is modulated into radiofrequency signal, finally by signal emission module 130 by emission of radio frequency signals
To FM Receiver 20 so that FM Receiver 20 radiofrequency signal is demodulated, decode and signal enhanced processing after it is defeated
Go out corresponding audio signal to television set, realize K song functions.
Embodiment two：
Fig. 4 shows that the utility model embodiment two provides the structure of FM Receiver 20, for convenience of description, only shows
The part related to the embodiment of the present invention is gone out, details are as follows：
FM Receiver 20, it is connected with television set 30, FM Receiver 20 includes：
Signal receiving module 210, signal processing module 220 and signal output module 230.
The output end of signal receiving module 210 is connected with the input of signal processing module 220, signal processing module 220
Output end be connected with the input of signal output module 230.
Signal receiving module 210 receives the radiofrequency signal transmitted by the remote control 10 of television set 30, signal processing module 220
Radiofrequency signal is tuned, obtains corresponding audio signal, signal output module after frequency-selecting, decoding and signal enhanced processing
230 export audio signal to television set 30.
Specifically, in the utility model embodiment, FM Receiver 20 passes through data-interface and audio output earphone
Plug is connected with the data-interface and audio input earphone interface of television set 30, is connect specifically, above-mentioned data-interface can be USB
Mouthful.
Fig. 5 shows the circuit structure for the FM Receiver 20 that the utility model embodiment two provides, for the ease of saying
It is bright, the part related to the utility model embodiment is illustrate only, details are as follows：
As shown in figure 5, signal receiving module 210 includes：Second antenna Y3, the 17th electric capacity C17, the 5th inductance L5 and
18 electric capacity C18.
Second antenna Y3 is connected with the 17th electric capacity C17 first end and the 18th electric capacity C18 first end, the 17th electricity
The second end for holding C17 is connected with the 5th inductance L5 first end, the 5th inductance L5 the second end ground connection, the 18th electric capacity C18's
Second end is the output end of signal receiving module 210.
Signal processing module 220 includes：Signal processing chip U2, USB interface J1, the 19th electric capacity C19, the 20th electric capacity
C20, voltage stabilizing chip U3, the 21st electric capacity C21, the 22nd electric capacity C22, the 6th switch S6, the 12nd resistance R12, lighted
Diode D3, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 7th switch S7,
8th switch S8, the 9th switch S9, the tenth switch S10, the 23rd electric capacity C23, the 24th electric capacity C24 and the second crystal oscillator
Y4。
USB interface J1 output pin OUT meets the 19th electric capacity C19 first end, USB interface J1 grounding pin GND
Ground connection, the 19th electric capacity C19 the second end ground connection, the 20th electric capacity C20 the first the 19th electric capacity C19 of termination first end,
20th electric capacity C20 the second end ground connection, voltage stabilizing chip U3 input pin IN are connected with the 20th electric capacity C20 first end,
Voltage stabilizing chip U3 grounding pin GND ground connection, the of voltage stabilizing chip U3 the first output pin OUT1 and the 21st electric capacity C21
One end connects, the 21st electric capacity C21 the second end ground connection, the 22nd electric capacity C22 first end and the 21st electric capacity C21
First end connection, the 22nd electric capacity C22 the second end ground connection, voltage stabilizing chip U3 the second output pin OUT2 opens with the 6th
S6 first end connection is closed, the 6th switch S6 the second end is connected with signal processing chip U2 power pins PWR, the 12nd electricity
The first end for hindering R12 is connected with the 6th switch S6 the second end, the 12nd resistance R12 the second end and light emitting diode D3 sun
Pole connects, light emitting diode D3 minus earth.
13rd resistance R13 first end, the 14th resistance R14 first end, the 15th resistance R15 first end and
16th resistance R16 first end connects jointly, the 13rd resistance R13 the second termination signal process chip U2 the first volume
Controlling switch VOL1, the 7th switch S7 the first the 13rd resistance R13 of termination the second end, the 7th switch S7 the second termination
Ground, the 14th resistance R14 the second termination signal process chip U2 the second volume controlling switch VOL2, the of the 8th switch S8
One the 14th resistance R14 of termination the second end, the 8th switch S8 the second end ground connection, the 15th resistance R15 the second termination letter
Number process chip U2 first frequency controlling switch CH1, the 9th switch S9 the first the 15th resistance R15 of termination the second end,
9th switch S9 the second end ground connection, the 16th resistance R16 the second termination signal process chip U2 second frequency control are drawn
Pin CH2, the tenth switch S10 the first the 16th resistance R16 of termination the second end, the tenth switch S10 the second end ground connection, signal
Process chip U2 frequency range pin BAND ground connection.
23rd electric capacity C23 first end is connected with signal processing chip U2 the first crystal oscillator pin CK1, and the 23rd
Electric capacity C23 the second end ground connection, the 24th electric capacity C24 first end and signal processing chip U2 the second crystal oscillator pin CK2
Connection, the 24th electric capacity C24 the second end ground connection, the second crystal oscillator Y4 the first the 23rd electric capacity C23 of termination first end,
Second crystal oscillator Y4 the second the 24th electric capacity C24 of termination the second end.
Signal processing chip U2 signal input pin IN be signal processing module 220 input, signal processing chip
U2 the first sound channel output pin OUTL and second sound channel output pin OUTR collectively form the output of signal processing module 220
End.
Signal output module 230 includes：6th inductance L6, the 7th inductance L7, the 17th resistance R17, the 18th resistance R18
And headset plug J2.
6th inductance L6 first end and the input that the 7th inductance L7 first end is signal output module 230, the 6th
Inductance L6 the second end is connected with the 17th resistance R17 first end, and the 17th resistance R17 the second end is with headset plug J2's
First sound channel pin IN1 connections, the 7th inductance L7 the second end are connected with the 18th resistance R18 first end, 16 resistance R16
The second end be connected with headset plug J2 second sound channel pin IN2, headset plug J2 grounding pin GND ground connection.
Above-mentioned FM Receiver 20 is described further below in conjunction with operation principle and Fig. 5：
It should be noted that signal processing chip U2 is integrated with tuning frequency selection circuit, stereo decoding circuit, stereo sound
Frequency amplifying circuit.
Received by the signal receiving module 210 of the second antenna Y3, the 17th electric capacity C17, the 5th inductance L5 compositions by electricity
Depending on the radiofrequency signal transmitted by the remote control of machine, then it is input to signal processing chip U2's after the 18th electric capacity C18 couplings
Signal input pin IN, the radiofrequency signal of input is tuned by signal processing chip U2, frequency-selecting, produced after Frequency mixing processing
Intermediate-freuqncy signal, the intermediate-freuqncy signal export stereo audio letter after the wave detector inside signal processing chip U2 carries out detection
Number, stereo audio signal exports corresponding audio after the low-frequency amplifier circuit inside signal processing chip U2 is amplified
Signal, by the 6th inductance L6, the 7th inductance L7, the 17th resistance R17, the 18th resistance R18 and headset plug J2 composition
Signal output module 230 outputs signal to television set.
Second crystal oscillator Y4, the 23rd electric capacity C23 and the outside oscillating circuit of the 24th electric capacity C24 compositions, are produced
32.768kHZ frequency of oscillation.7th switch S7 and the 8th switch S8 are used to adjust the size of volume, exemplary, press the
Seven switch S7 can turn down volume, and volume can be improved by pressing the 8th switch S8, and the 9th switch S9 and the tenth switch S10 are used for
Lower frequency-selecting, it is exemplary, next frequency range of current frequency range can be selected by the 9th switch S9, pressing the tenth switch S10 can select
Select a upper frequency range for current frequency range.Due to, signal processing chip U2 frequency range pin BAND ground connection, as zero level, therefore, letter
The frequency-selecting of number process chip is 87-109MHz.When the 6th switch S6 closures, above-mentioned signal processing chip energization work, now
Its working frequency given tacit consent to is 107.8MHZ.
The FM Receiver 20 that the utility model embodiment provides, received by signal receiving module 210 come to TV
The radiofrequency signal that the remote control 10 of machine 30 sends over, then by the signal processing chip U2 of signal processing module 220 to receiving
To signal be tuned, exports audio signal after frequency-selecting, decoding and enhanced processing, it is finally defeated via signal output module 230
Go out above-mentioned audio signal to television set 30, realize K song functions.
Embodiment three：
Fig. 6 show the utility model embodiment three provide K song system structure, for convenience of description, illustrate only with
The related part of the embodiment of the present invention, details are as follows：
K sings system, including television set 30, and this K song systems also include remote control 10 and FM Receiver 20.
It should be noted that FM Receiver 20 is connect by the USB of USB interface and headset plug respectively with television set 30
Mouth connects with audio input earphone interface.
Above-mentioned K sings system, and sound collection processing module 110, signal modulation module 120 and signal are set in remote control 10
Transmitter module 130, voice signal is obtained by sound collection processing module 110, and the voice signal is amplified and amplitude limit
After processing, then by signal modulation module 120 will through amplification and amplitude limiting processing after voice signal be modulated into radiofrequency signal, by
Signal emission module 130 is by the signal receiving module 210 of the emission of radio frequency signals to FM Receiver 20, FM Receiver
20 signal processing module 220 is demodulated to the radiofrequency signal received, decode and signal enhanced processing after obtain it is corresponding
Audio signal, finally the audio signal is exported to television set 30 via signal output module 230, so as to realize K song functions, nothing
Large-scale receiving platform need to be configured, solves the problems, such as that cost existing for existing KTV systems is high and space-consuming is big.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of remote control, it is characterised in that the remote control includes：Sound collection processing module, signal modulation module and
Signal emission module；
The output end of the sound collection processing module is connected with the input of the signal modulation module, and the signal launches mould
Block input is connected with the signal modulation module output end；
The sound collection processing module obtains voice signal, and the voice signal is amplified and amplitude limiting processing；It is described
Signal modulation module will be modulated into radiofrequency signal by amplifying with the voice signal after amplitude limiting processing, and the signal emission module will
The emission of radio frequency signals is to FM Receiver；
The radiofrequency signal is used for：The FM Receiver is demodulated to the radiofrequency signal, decode and signal amplification at
Corresponding audio signal is exported after reason to television set.
2. remote control according to claim 1, it is characterised in that the sound collection processing module includes sound collection list
Member and sound processing unit；
The sound collection unit is connected with the input of the sound processing unit, and the output end of the sound processing unit is
The output end of the sound collection processing module；
The sound collection unit is acquired to sound and exports corresponding voice signal, and the sound processing unit is to described
Voice signal is amplified and amplitude limiting processing.
3. remote control according to claim 2, it is characterised in that the sound processing unit includes：
First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance,
First electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the first NPN type triode, the one or two
Pole pipe and the second diode；
The first end of the first resistor be the sound processing unit input, the second end of the first resistor with it is described
The first end connection of first electric capacity, the second end ground connection of first electric capacity, the first end of second electric capacity and described first
The first end connection of electric capacity, the second end ground connection of second electric capacity, the first end of the second resistance and second electric capacity
First end connection, the second end of the second resistance is connected with the colelctor electrode of first NPN type triode, and the described 3rd is electric
The first end of resistance is connected with the first end of the second resistance, the first termination dc source of the 3rd resistor, and the described 3rd
Second end of resistance is connected with the first end of the 4th resistance, and the of the second end of the 4th resistance and the 5th electric capacity
Two ends are connected, and the negative electrode of first diode is connected with the first end of the 4th resistance, the anode of first diode
Ground connection, the anode of second diode are connected with the negative electrode of first diode, the minus earth of second diode,
The first end of 3rd electric capacity is connected with the first end of the first resistor, the second end and the described 5th of the 3rd electric capacity
The first end connection of resistance, the colelctor electrode of the second termination first NPN type triode of the 5th resistance, the 4th electricity
The base stage for the first termination first NPN type triode held, the first end of the 4th electric capacity also with the 5th resistance
First end connects, the second end ground connection of the 4th electric capacity, the emitter stage of first NPN type triode and the 6th resistance
First end connection, the second end ground connection of the 6th resistance, the first termination pole of the first NPN type three of the 5th electric capacity
The colelctor electrode of pipe, the first end of the second termination the 7th resistance of the 5th electric capacity, the first end of the 8th resistance with
The first end connection of 7th resistance, the first end of the first termination the 8th resistance of the 6th electric capacity, the described 6th
The second end ground connection of electric capacity, the second end of the 7th resistance and the second end of the 8th resistance are the sound processing unit
Output end.
4. remote control according to claim 1, it is characterised in that the signal modulation module includes：
First switch, second switch, third switch, the 4th switch, the 5th switch, the 7th electric capacity, the 8th electric capacity and first are brilliant
Shake, the 9th electric capacity, the tenth electric capacity, the 9th resistance, the tenth resistance, the first inductance and signal modulation chip；
The first input pin and the second input pin of the signal modulation chip collectively form the defeated of the signal modulation module
Enter end, the first end of the first switch is connected with the first frequency-selecting pin of the signal modulation chip, the first switch
Second end is grounded, and the first end of the second switch is connected with the second frequency-selecting pin of the signal modulation chip, and described second
The second end ground connection of switch, the first end of the 3rd switch are connected with the 3rd frequency-selecting pin of the signal modulation chip, institute
The second end ground connection of the 3rd switch is stated, the first end and the 4th frequency-selecting pin of the signal modulation chip of the 4th switch connect
Connect, the second end ground connection of the 4th switch, the first end of the 5th switch and the 5th frequency-selecting of the signal modulation chip
Pin connects, the second end ground connection of the 5th switch；
The first end of first the first crystal oscillator of termination of the 7th electric capacity, the first termination signal modulation of first crystal oscillator
First crystal oscillator pin of chip, the second end ground connection of the 7th electric capacity, the first termination described first of the 8th electric capacity are brilliant
The second end to shake, the second crystal oscillator pin of the second termination signal modulation chip of first crystal oscillator, the 8th electric capacity
The second end ground connection；
First filtering pin of the first termination signal modulation chip of the 9th resistance, the second end of the 9th resistance
Connect the first end of the 9th electric capacity, the second end ground connection of the 9th electric capacity, the first end of the tenth electric capacity and described the
The first end connection of nine resistance, the second filtering pin of the first termination signal modulation chip of the tenth electric capacity；
The first end of tenth resistance and the second end are anti-with the first feedback pin of the signal modulation chip and second respectively
Present pin connection, the first end of first inductance and the second end respectively with the first voltage-controlled pin of the signal modulation chip and
Second voltage-controlled pin connection；
The first output pin and the second output pin of the signal modulation chip collectively form the defeated of the signal modulation module
Go out end.
5. remote control according to claim 1, it is characterised in that the signal emission module includes：
Second inductance, the 11st electric capacity, the 12nd electric capacity, the 13rd electric capacity, the 14th electric capacity, the 11st resistance, the second NPN type
Triode, the 3rd inductance, the 4th inductance, the 15th electric capacity, the 16th electric capacity and first antenna；
The first end of second inductance and the second end are the input of the signal emission module, the of the 11st electric capacity
The first end of one termination second inductance, the second end ground connection of the 11st electric capacity, the first end of the 12nd electric capacity
Connect first end, the second end ground connection of the 12nd electric capacity of the 11st electric capacity, the first termination of the 13rd electric capacity
The first end of 12nd electric capacity, the second end ground connection of the 13rd electric capacity, the first termination institute of the 14th electric capacity
State the second end of the second inductance, the first end of the second termination the 11st resistance of the 14th electric capacity, the described 11st
The colelctor electrode of second termination second NPN type triode of resistance, the second end and the 2nd NPN of the 14th electric capacity
The base stage connection of type triode, the grounded emitter of second NPN type triode, the first termination power of the 3rd inductance
And be connected with the first end of the 13rd electric capacity, the second end of the second termination the 11st resistance of the 3rd inductance,
Second end of the first termination the 3rd inductance of the 15th electric capacity, described first day of the first termination of the 4th inductance
Line, the second end of the second termination the 4th inductance of the 15th electric capacity, described in the first termination of the 16th electric capacity
Second end of the 4th inductance, the second end of the 16th electric capacity ground connection.
6. a kind of FM Receiver, is connected with television set, it is characterised in that the FM Receiver includes：
Signal receiving module, signal processing module and signal output module；
The output end of the signal receiving module is connected with the input of the signal processing module, the signal processing module
Output end is connected with the input of the signal output module；
The signal receiving module receives the radiofrequency signal transmitted by the remote control of the television set, the signal processing module pair
The radiofrequency signal is tuned, frequency-selecting, obtains corresponding audio signal, the signal output after decoding and signal enhanced processing
Module exports the audio signal to the television set.
7. FM Receiver according to claim 6, it is characterised in that the signal receiving module includes：
Second antenna, the 17th electric capacity, the 5th inductance and the 18th electric capacity；
Second antenna is connected with the first end of the 17th electric capacity and the first end of the 18th electric capacity, and the described tenth
Second end of seven electric capacity is connected with the first end of the 5th inductance, the second end ground connection of the 5th inductance, and the described 18th
Second end of electric capacity is the output end of the signal receiving module.
8. FM Receiver according to claim 6, it is characterised in that the signal processing module includes：
Signal processing chip,
USB interface, the 19th electric capacity, the 20th electric capacity, voltage stabilizing chip, the 21st electric capacity, the 22nd electric capacity, the 6th open
Pass, the 12nd resistance, light emitting diode, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the 7th open
Pass, the 8th switch, the 9th switch, the tenth switch, the 23rd electric capacity, the 24th electric capacity and the second crystal oscillator；
The output pin of the USB interface connects the first end of the 19th electric capacity, and the grounding pin of the USB interface is grounded,
The second end ground connection of 19th electric capacity, the first end of the first termination the 19th electric capacity of the 20th electric capacity, institute
The second end ground connection of the 20th electric capacity is stated, the input pin of the voltage stabilizing chip is connected with the first end of the 20th electric capacity,
The grounding pin ground connection of the voltage stabilizing chip, the first output pin of the voltage stabilizing chip and the first of the 21st electric capacity
End connection, the second end ground connection of the 21st electric capacity, the first end of the 22nd electric capacity and the described 21st electricity
Appearance first end connection, the 22nd electric capacity the second end ground connection, the second output pin of the voltage stabilizing chip with it is described
The first end connection of 6th switch, the second end of the 6th switch are connected with the power pins of the signal processing chip, institute
The first end for stating the 12nd resistance is connected with the second end of the described 6th switch, the second end and the hair of the 12nd resistance
The anode connection of optical diode, the minus earth of the light emitting diode；
The first end of 13rd resistance, the first end of the 14th resistance, the first end of the 15th resistance and
The first end of 16th resistance connects jointly, and the first of the second termination signal processing chip of the 13rd resistance
Volume controlling switch, the second end of the first termination the 13rd resistance of the 7th switch, the second of the 7th switch
End ground connection, the second volume controlling switch of the second termination signal processing chip of the 14th resistance, the described 8th opens
Second end of the first termination the 14th resistance closed, the second end ground connection of the 8th switch, the 15th resistance
The first frequency controlling switch of the second termination signal processing chip, the first termination the 15th electricity of the 9th switch
Second end of resistance, the second end ground connection of the 9th switch, the second termination signal processing chip of the 16th resistance
Second frequency controlling switch, the second end of the first termination the 16th resistance of the tenth switch, the tenth switch
The second end ground connection, the signal processing chip frequency range pin ground connection；
The first end of 23rd electric capacity is connected with the first crystal oscillator pin of the signal processing chip, and the described 23rd
The second end ground connection of electric capacity, the first end of the 24th electric capacity connect with the second crystal oscillator pin of the signal processing chip
Connect, the second end ground connection of the 24th electric capacity, the first of the first termination the 23rd electric capacity of second crystal oscillator
End, the second end of the second termination the 24th electric capacity of second crystal oscillator；
The signal input pin of the signal processing chip be the signal processing module input, the signal processing chip
The first sound channel output pin and second sound channel output pin collectively form the output end of the signal processing module.
9. FM Receiver according to claim 6, it is characterised in that the signal output module includes：
6th inductance, the 7th inductance, the 17th resistance, the 18th resistance and headset plug；
The first end of 6th inductance and the input that the first end of the 7th inductance is the signal output module, it is described
Second end of the 6th inductance is connected with the first end of the 17th resistance, the second end and the earphone of the 17th resistance
The first sound channel pin connection of plug, the second end of the 7th inductance is connected with the first end of the 18th resistance, described
Second end of 18 resistance is connected with the second sound channel pin of the headset plug, the grounding pin ground connection of the headset plug.
10. a kind of K sings system, including television set, it is characterised in that the K songs system is also included as claim 1-5 is any one
Remote control described in and the FM Receiver as described in claim 6-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188425.9U CN206833915U (en) | 2017-02-28 | 2017-02-28 | A kind of remote control, FM Receiver and K song systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188425.9U CN206833915U (en) | 2017-02-28 | 2017-02-28 | A kind of remote control, FM Receiver and K song systems |
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| Publication Number | Publication Date |
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| CN206833915U true CN206833915U (en) | 2018-01-02 |
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| CN201720188425.9U Active CN206833915U (en) | 2017-02-28 | 2017-02-28 | A kind of remote control, FM Receiver and K song systems |
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| CN (1) | CN206833915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068162A (en) * | 2018-08-06 | 2018-12-21 | 中新科技集团股份有限公司 | The method that smart television and smart television with K song function realize K song function |
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2017
- 2017-02-28 CN CN201720188425.9U patent/CN206833915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068162A (en) * | 2018-08-06 | 2018-12-21 | 中新科技集团股份有限公司 | The method that smart television and smart television with K song function realize K song function |
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