CN103401573A - Status adjusting method, adjusting device and audio receiver of audio receiving chip - Google Patents
Status adjusting method, adjusting device and audio receiver of audio receiving chip Download PDFInfo
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- CN103401573A CN103401573A CN2013103297960A CN201310329796A CN103401573A CN 103401573 A CN103401573 A CN 103401573A CN 2013103297960 A CN2013103297960 A CN 2013103297960A CN 201310329796 A CN201310329796 A CN 201310329796A CN 103401573 A CN103401573 A CN 103401573A
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Abstract
The invention relates to a status adjusting method, an adjusting device and an audio receiver of an audio receiving chip. The status adjusting method of the audio receiving chip comprises the following steps of outputting a first control signal according to a received channel selection signal; adjusting the audio receiving chip into a channel adjustment status according to the first control signal; timing a preset time when the channel selection signal is received, and outputting a second control signal if the channel selection signal is not received again within the preset time; and adjusting the audio receiving chip into a channel listening status according to the second control signal. By the status adjusting method of the audio receiving chip, when adjusting or listening channels, a user can enjoy the optimal allocation and obtain good user experience.
Description
Technical field
The present invention relates to audio frequency and receive technical field, relate in particular to a kind of state adjustment method and adjusting device of audio frequency receiving chip, and voice receiver.
Background technology
Broadcast receiver is a kind of by the widely used electronic product of people.The core that the wireless signal of tradition is processed is the audio frequency receiving chip.as shown in Figure 1, structural representation for prior art sound intermediate frequency receiving chip, this audio frequency receiving chip 10 comprises radio-frequency front-end processing module 12, analog to digital converter (Analog Digital Converter, hereinafter to be referred as: ADC) 15, digital signal processor (Digital Signal Processing, hereinafter to be referred as: DSP) 16, digital to analog converter (Digital Analog Converter, hereinafter to be referred as: DAC) 17 and control processing module 18, wherein, radio-frequency front-end processing module 12 comprises: low noise amplifier 121, local oscillator 122 and frequency mixing module 123.The processing procedure of this audio frequency receiving chip is as follows: after control processing module 18 receives channel selecting signal, at first control the frequency-selective circuit resonance of reception antenna 11 to target frequency, select the voltage signal of target frequency, output to radio-frequency front-end processing module 12 and carry out the signal processing, wherein, radiofrequency signal is amplified after processing and is outputed to frequency mixing module 123 through low noise amplifier 121, and the local oscillated signal that frequency mixing module 123 will be amplified radiofrequency signal and local oscillator 122 generations after processing carries out Frequency mixing processing and exports analog if signal; ADC15 is transformed into digital medium-frequency signal with analog if signal and outputs in DSP16 and carry out a series of signal and process, comprise that image frequency suppresses processing, frequency-selective filtering processing, FM or AM demodulation process and audio frequency filtering is processed, demodulate digital audio and video signals, this digital audio and video signals is transformed into simulated audio signal through DAC17, then output.Wherein, channel selecting signal can be by transferring platform knob 19 to send.
In order to make people can obtain good use impression when listening to program of radio station, the developer can carry out design chips by the needs when listening platform; But, the good impression in the time of can only guaranteeing like this to listen platform, and can not take into account the user when transferring platform, have same good use impression.
Summary of the invention
The invention provides a kind of state adjustment method and adjusting device of audio frequency receiving chip, and voice receiver,, in order to realize that the user when transferring platform or listening platform, can enjoy allocation optimum simultaneously, obtain the good impression of using.
The invention provides a kind of state adjustment method of audio frequency receiving chip, comprising:
, according to the channel selecting signal that receives, generate the first control signal;
According to described the first control signal, described audio frequency receiving chip is adjusted into the platform state;
Start default duration is carried out timing from receiving described channel selecting signal, when again not receiving described channel selecting signal in described default duration, generate the second control signal;
According to described the second control signal, described audio frequency receiving chip is adjusted into the platform state of listening.
The present invention also provides a kind of state adjusting device of audio frequency receiving chip, comprising:
Control module, be used for generating the first control signal according to the channel selecting signal that receives;
Adjusting module, be connected with described control module, is used for according to described the first control signal, and described audio frequency receiving chip is adjusted into the platform state;
Described control module also is used for starting default duration is carried out timing from receiving described channel selecting signal, when again not receiving described channel selecting signal in described default duration, generates the second control signal;
Described adjusting module also is used for according to described the second control signal, and described audio frequency receiving chip is adjusted into the platform state of listening.
The present invention also provides a kind of audio frequency receiving chip, comprise: radio-frequency front-end processing module, analog to digital converter ADC, digital signal processor DSP, digital to analog converter DAC and control processing module, described control processing module comprises the state adjusting device of aforesaid audio frequency receiving chip.
The present invention also provides a kind of voice receiver, comprising:
Transfer table apparatus, be used for generating channel selecting signal;
Anneta module, be used for received RF signal;
Aforesaid audio frequency receiving chip.
In the state adjustment method of audio frequency receiving chip of the present invention, control module, according to the channel selecting signal that receives, generates the first control signal; Adjusting module, according to described the first control signal, is adjusted into the platform state with described audio frequency receiving chip; Described control module starts default duration is carried out timing from receiving described channel selecting signal, when again not receiving described channel selecting signal in described default duration, generates the second control signal; Described adjusting module, according to described the second control signal, is adjusted into described audio frequency receiving chip the platform state of listening.Like this, when the user uses the method to transfer platform and broadcast listening program, the search effect while transferring the platform state to guarantee to transfer platform, audibility while listening the platform state can guarantee to listen platform, can allow the user under two kinds of different conditions, all can enjoy allocation optimum, obtain the good impression of using.
Description of drawings
Fig. 1 is the structural representation of prior art sound intermediate frequency receiving chip;
Fig. 2 is the schematic flow sheet of the state adjustment method embodiment of audio frequency receiving chip of the present invention;
Fig. 3 is the principle schematic of the state adjustment method of audio frequency receiving chip of the present invention;
Fig. 4 is the structural representation of the state adjusting device embodiment of audio frequency receiving chip of the present invention;
Fig. 5 is the first structural representation of the adjusting module in the state adjusting device of audio frequency receiving chip shown in Figure 4 in the state adjusting device embodiment of audio frequency receiving chip of the present invention;
Fig. 6 is the second structural representation of the adjusting module in the state adjusting device of audio frequency receiving chip shown in Figure 4 in the state adjusting device embodiment of audio frequency receiving chip of the present invention;
Fig. 7 is the structural representation of audio frequency receiving chip embodiment of the present invention;
Fig. 8 is the structural representation of voice receiver embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with specification drawings and specific embodiments.
As shown in Figure 2, the schematic flow sheet for the state adjustment method embodiment of audio frequency receiving chip of the present invention can comprise:
Channel selecting signal can be by transferring table apparatus to generate and export, and alternatively, this transfers table apparatus can be knob, button or touch-screen etc.
Alternatively, default duration is 500 milliseconds, and receives channel selecting signal at every turn and restart timing.
In the present invention, control module, according to the channel selecting signal that receives, generates the first control signal; Adjusting module, according to the first control signal, is adjusted into the platform state with the audio frequency receiving chip; Control module starts default duration is carried out timing from receiving channel selecting signal, when again not receiving channel selecting signal in default duration, generates the second control signal; Adjusting module, according to the second control signal, is adjusted into the audio frequency receiving chip platform state of listening.Like this, when the user uses the method to transfer platform and broadcast listening program, when transferring the platform state, search effect in the time of can guaranteeing to transfer platform, when listening the platform state, the audibility in the time of can guaranteeing to listen platform, the method can realize that the user is under two kinds of different conditions, all can enjoy allocation optimum, obtain the good impression of using.
For example, when transferring the platform state, the filtering speed of audio frequency receiving chip median filter be fast, like this can high-speed receiving to radio signals, and quick uppick program of radio station; When listening the platform state, the filtering speed of audio frequency receiving chip median filter, at a slow speed, can make the radio signals that receives more level and smooth like this.
Alternatively, adjusting module is adjusted into the platform state with the audio frequency receiving chip and is specially: adjusting module with the regulation of electrical circuit of audio frequency receiving chip for transferring the circuit of platform state; Adjusting module is adjusted into the audio frequency receiving chip to listen the platform state to be specially: adjusting module is with the circuit of the regulation of electrical circuit of audio frequency receiving chip for tin platform state.Alternatively, this regulation of electrical circuit can adopt following dual mode; First kind of way is that the audio frequency receiving chip contains two circuit, the one, transfer the platform circuit, the 2nd, listen the platform circuit, connect with a switch between two circuit, when the audio frequency receiving chip is while transferring the platform state, the adjusting module control switch is closed into transfers the platform circuit, and when the audio frequency receiving chip is while listening the platform state, the adjusting module control switch is closed into listens a platform circuit; The second way is that a kind of circuit is only arranged, but adjusting module can be by some components and parts in regulating circuit, as: voltage source, resistance or electric capacity, transfer the platform state or listen the platform state so that circuit is in, with respect to first kind of way, the multiplexing functions that this mode can realize transferring the platform state and listen the platform state, thus the facilitating chip structure reduces chip area.
Alternatively, adjusting module is adjusted into the platform state with the audio frequency receiving chip and is specially: adjusting module with the control parameter adjustment of audio frequency receiving chip for transferring the control parameter of platform state; Adjusting module is adjusted into the audio frequency receiving chip to listen the platform state to be specially: adjusting module is with the control parameter of the control parameter adjustment of audio frequency receiving chip for tin platform state.For example: the control parameter of audio frequency receiving chip can comprise the bandwidth of low pass filter: for example the bandwidth of low pass filter is set to 16Hz when transferring the platform state, when volume gain changes 10dB, the time used is about 10ms, the bandwidth of low pass filter is set to 3.2Hz when listening the platform state, and when volume gain changes 10dB, the time used is about 50ms; The bandwidth of filter has determined the settling time that volume gain changes; Automatic frequency is controlled (Automatic Frequency Control, abbreviation: AFC) function: open the AFC function when listening the platform state, close AFC function etc. when transferring the platform state.
Take the FM voice receiver as example, illustrate and how to implement this method, as shown in Figure 3, principle schematic for the state adjustment method of audio frequency receiving chip of the present invention, as the user during at the broadcast listening program, the state of audio frequency receiving chip is for listening a platform state, at this moment controls the allocation optimum of parameter when listening platform, so audibility is good; Transfer the platform knob in case rotation is regulated, control module is controlled adjusting module audio frequency receiving chip by the first control signal of output and is set to transfer the platform state, allocation optimum while at this moment controlling parameter for the accent platform, the user is in 500 milliseconds, transfer platform at turning knob always, the audio frequency receiving chip is in the platform state of transferring always, as the user in 500 milliseconds, rotate accent platform knob, control module is to listen a platform state with the audio frequency receiving chip from transferring the platform state-transition by the second control signal control adjusting module of output so.
As shown in Figure 4, be the structural representation of the state adjusting device embodiment of audio frequency receiving chip of the present invention, the state adjusting device of audio frequency receiving chip can comprise control module 181 and adjusting module 182, and adjusting module 182 is connected with control module 181.Control module 181 is used for generating the first control signal according to the channel selecting signal that receives; Adjusting module 182 is used for according to the first control signal, and the audio frequency receiving chip is adjusted into the platform state; Control module 181 also is used for starting default duration is carried out timing from receiving channel selecting signal, when again not receiving channel selecting signal in default duration, generates the second control signal; Alternatively, default duration is 500 milliseconds; Adjusting module 182 also is used for according to the second control signal, and the audio frequency receiving chip is adjusted into the platform state of listening.
In the present invention, control module 181 is used for generating the first control signal according to the channel selecting signal that receives; Adjusting module 182 is used for according to the first control signal, and the audio frequency receiving chip is adjusted into the platform state; Control module 181 also is used for starting default duration is carried out timing from receiving channel selecting signal, when again not receiving channel selecting signal in default duration, generates the second control signal; Adjusting module 182 also is used for according to the second control signal, and the audio frequency receiving chip is adjusted into the platform state of listening.Like this, when the user uses the state adjusting device of this audio frequency receiving chip to transfer platform and broadcast listening program, when transferring the platform state, search effect in the time of can guaranteeing to transfer platform, when listening the platform state, the audibility in the time of can guaranteeing to listen platform, the method can realize that the user is under two kinds of different conditions, all can enjoy allocation optimum, obtain the good impression of using.
For example, when transferring the platform state, the filtering speed of audio frequency receiving chip median filter be fast, like this can high-speed receiving to radio signals, and quick uppick program of radio station; When listening the platform state, the filtering speed of audio frequency receiving chip median filter, at a slow speed, can make the radio signals that receives more level and smooth like this.
Alternatively, as shown in Figure 5, for the first structural representation of the adjusting module in the state adjusting device of audio frequency receiving chip shown in Figure 4 in the state adjusting device embodiment of audio frequency receiving chip of the present invention, adjusting module 182 can comprise: the first adjustment unit 1821 and the second adjustment unit 1822.The first adjustment unit 1821 is used for according to the first control signal, with the circuit of the regulation of electrical circuit of audio frequency receiving chip for accent platform state; The second adjustment unit 1822 is used for according to the second control signal, with the circuit of the regulation of electrical circuit of audio frequency receiving chip for tin platform state.The regulation of electrical circuit can adopt following dual mode; First kind of way is that the audio frequency receiving chip contains two circuit, the one, transfer the platform circuit, the 2nd, listen the platform circuit, connect with a switch between two circuit, when the audio frequency receiving chip is while transferring the platform state, the first adjustment unit 1821 control switchs are closed into transfers the platform circuit, and when the audio frequency receiving chip is while listening the platform state, the second adjustment unit 1822 control switchs are closed into listens a platform circuit; The second way is that a kind of circuit is only arranged, but adjusting module 182 can be by some components and parts in regulating circuit, as: voltage source, resistance or electric capacity, transfer the platform state or listen the platform state so that circuit is in, with respect to first kind of way, the multiplexing functions that this mode can realize transferring the platform state and listen the platform state, thus the facilitating chip structure reduces chip area.
Alternatively, as shown in Figure 6, for the second structural representation of the adjusting module in the state adjusting device of audio frequency receiving chip shown in Figure 4 in the state adjusting device embodiment of audio frequency receiving chip of the present invention, adjusting module 182 can comprise: the 3rd adjustment unit 1823 and the 4th adjustment unit 1824.The 3rd adjustment unit 1823 is used for according to the first control signal, with the control parameter of the control parameter adjustment of audio frequency receiving chip for accent platform state; The 4th adjustment unit 1824 is used for according to the second control signal, with the control parameter of the control parameter adjustment of audio frequency receiving chip for tin platform state.The control parameter of audio frequency receiving chip can comprise the bandwidth of low pass filter: for example the bandwidth of low pass filter is set to 16Hz when transferring the platform state, when volume gain changes 10dB, the time used is about 10ms, the bandwidth of low pass filter is set to 3.2Hz when listening the platform state, and when volume gain changes 10dB, the time used is about 50ms; The bandwidth of filter has determined the settling time that volume gain changes; Automatic frequency is controlled (Automatic Frequency Control, abbreviation: AFC) function: open the AFC function when listening the platform state, close AFC function etc. when transferring the platform state.
As shown in Figure 7, structural representation for audio frequency receiving chip embodiment of the present invention, audio frequency receiving chip 70 can comprise radio-frequency front-end processing module 12, ADC15, DSP16, DAC17 and control processing module 18, control arbitrary module and unit in the state adjusting device embodiment that processing module 18 comprises aforementioned audio frequency receiving chip, do not repeat them here.
Alternatively, control processing module 18 be specifically as follows CPU (Central Processing Unit, be called for short: CPU) or micro-control unit (Micro Control Unit is called for short: MCU).
As shown in Figure 8, be the structural representation of voice receiver embodiment of the present invention, voice receiver can comprise transfers table apparatus 81, Anneta module 82 and audio frequency receiving chip 70.Audio frequency receiving chip 70 is connected with Anneta module 82 with transferring table apparatus 81.
Transfer table apparatus 61 to be used for generating channel selecting signal; Alternatively, transfer table apparatus can be knob, button or touch-screen etc.; Anneta module 82 is used for received RF signal; Audio frequency receiving chip 70 can, for audio frequency receiving chip shown in Figure 7, not repeat them here.
It should be noted that finally: above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. the state adjustment method of an audio frequency receiving chip, is characterized in that, comprising:
, according to the channel selecting signal that receives, generate the first control signal;
According to described the first control signal, described audio frequency receiving chip is adjusted into the platform state;
Start default duration is carried out timing from receiving described channel selecting signal, when again not receiving described channel selecting signal in described default duration, generate the second control signal;
According to described the second control signal, described audio frequency receiving chip is adjusted into the platform state of listening.
2. method according to claim 1, is characterized in that, describedly described audio frequency receiving chip is adjusted into the platform state is specially: with the regulation of electrical circuit of described audio frequency receiving chip for transferring the circuit of platform state;
Described described audio frequency receiving chip be adjusted into and listen the platform state to be specially: with the regulation of electrical circuit of described audio frequency receiving chip for listening the circuit of platform state.
3. method according to claim 1, is characterized in that, describedly described audio frequency receiving chip is adjusted into the platform state is specially: with the control parameter adjustment of described audio frequency receiving chip for transferring the control parameter of platform state;
Described described audio frequency receiving chip be adjusted into and listen the platform state to be specially: with the control parameter adjustment of described audio frequency receiving chip for listening the control parameter of platform state.
4. the state adjusting device of an audio frequency receiving chip, is characterized in that, comprising:
Control module, be used for generating the first control signal according to the channel selecting signal that receives;
Adjusting module, be connected with described control module, is used for according to described the first control signal, and described audio frequency receiving chip is adjusted into the platform state;
Described control module also is used for starting default duration is carried out timing from receiving described channel selecting signal, when again not receiving described channel selecting signal in described default duration, generates the second control signal;
Described adjusting module also is used for according to described the second control signal, and described audio frequency receiving chip is adjusted into the platform state of listening.
5. device according to claim 4, is characterized in that, described adjusting module comprises:
The first adjustment unit, be used for according to described the first control signal, with the circuit of the regulation of electrical circuit of described audio frequency receiving chip for accent platform state;
The second adjustment unit, be used for according to described the second control signal, with the circuit of the regulation of electrical circuit of described audio frequency receiving chip for tin platform state.
6. device according to claim 4, is characterized in that, described adjusting module comprises:
The 3rd adjustment unit, be used for according to described the first control signal, with the control parameter of the control parameter adjustment of described audio frequency receiving chip for accent platform state;
The 4th adjustment unit, be used for according to described the second control signal, with the control parameter of the control parameter adjustment of described audio frequency receiving chip for tin platform state.
7. audio frequency receiving chip, comprise: radio-frequency front-end processing module, analog to digital converter ADC, digital signal processor DSP, digital to analog converter DAC and control processing module, it is characterized in that, described control processing module comprises the state adjusting device of the arbitrary described audio frequency receiving chip of claim 4 to 6.
8. audio frequency receiving chip according to claim 7, is characterized in that, described control processing module is specially central processing unit CPU or micro-control unit MCU.
9. a voice receiver, is characterized in that, comprising:
Transfer table apparatus, be used for generating channel selecting signal;
Anneta module, be used for received RF signal;
The described audio frequency receiving chip of claim 7 or 8.
10. voice receiver according to claim 9, is characterized in that, described accent table apparatus is specially knob, button or touch-screen.
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| CN2013103297960A CN103401573A (en) | 2013-07-31 | 2013-07-31 | Status adjusting method, adjusting device and audio receiver of audio receiving chip |
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| CN2013103297960A CN103401573A (en) | 2013-07-31 | 2013-07-31 | Status adjusting method, adjusting device and audio receiver of audio receiving chip |
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Cited By (1)
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| WO2018103258A1 (en) * | 2016-12-08 | 2018-06-14 | 华为技术有限公司 | Radio antenna diagnostic circuit, and diagnostic method and apparatus |
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Address after: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Applicant after: KT MICRO, Inc. Address before: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Applicant before: Beijing Kunteng electronic Limited by Share Ltd. Address after: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Applicant after: Beijing Kunteng electronic Limited by Share Ltd. Address before: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Applicant before: KT MICRO Inc. (BEIJING) |
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Application publication date: 20131120 |