CN1722631A - Wireless audio transmission/reception system and using method therefor - Google Patents
Wireless audio transmission/reception system and using method therefor Download PDFInfo
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- CN1722631A CN1722631A CNA2005100847269A CN200510084726A CN1722631A CN 1722631 A CN1722631 A CN 1722631A CN A2005100847269 A CNA2005100847269 A CN A2005100847269A CN 200510084726 A CN200510084726 A CN 200510084726A CN 1722631 A CN1722631 A CN 1722631A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- Signal Processing (AREA)
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- Acoustics & Sound (AREA)
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Abstract
A wireless audio transmission/reception system is provided. The transmission/reception system includes an FM detector for detecting an occupied channel among radio FM channels, a microprocessor for selecting a using channel that is greatly different in frequency from the detected occupied channel and thus does not interfere therewith, an FM transmitter built in an audio replay system to transmit/receive an audio signal over the using channel, and an external audio system for receiving and outputting the audio signal from the FM transmitter.
Description
Technical field
The present invention relates to ANTENN AUDIO transmission/receiving system and wherein radio frequency (RF) method to set up, particularly, relate to ANTENN AUDIO transmissions/receiving system and use allows the user to pass through radio thus, the method for listening to audio from audio playback system.More specifically, when the present invention relates to ANTENN AUDIO transmission/receiving system and can work as the audio signal of reproducing by audio playback system thus be sent to external audio system, by the using method that accurate transmission/receive frequency strengthens user's convenience and satisfaction is set by the FM transmitter.
Background technology
When audio playback system (for example MP3 player) and external audio system (for example automobile audio system) are separated from one another, the FM transmitter passes through radio, to send to independent external audio system by the audio signal that audio reproducing system reappears, allow user's listening to audio in convenient and comfortable environment thus.
Because the FM transmitter is based on wireless equipment, it uses specific FM frequency.This FM transmitter must only use the predeterminated frequency section that is used for countries and regions according to the international convention of using about radio frequency.Equally, generic radio broadcasting is used and is distributed to each national predeterminated frequency section.In the case, the frequency band that is used for the radio communication of FM transmitter may be close to the radio frequency section.Therefore, the frequency signal that is probably used by the FM transmitter disturbs the frequency signal that is used by generic radio broadcasting.
For solving this shortcoming, the zone that the FM transmitter is placed according to device is provided with available channel and has the different channel that is used for radio communication.Yet the user is difficult to select the channel of expectation from available channel.
For addressing this problem, can in the FM transmitter, set in advance the radio frequency section of the radio frequency section that can avoid being used for the specific region.Yet radio frequency signals not only comprises the predeterminated frequency signal of use, also is included in the signal in the different frequency section that can disturb original frequency.Therefore, this method does not meet the requirements.
For example the device of audio playback system is placed in the building, particularly in the room.Thereby, in radio signal, by the signal of building reflection with owing to the interference between the electromagnetic wave signal of other nearby electron equipment influences this device significantly.Therefore, audio playback system being placed in the building, is problematic by transmission of preset radio frequency and received audio signal.
Therefore, need a kind of method, wherein, selected automatically according to the current time and the current location of system in audio playback system and the employed frequency of the wireless transmission between the external audio system carried out via ANTENN AUDIO transmission/receiving system.
Summary of the invention
Therefore, the present invention relates to ANTENN AUDIO transmission/receiving system, and the using method of therefore avoiding one or more problems that cause owing to the limitation and the unfavorable factor of this area in fact.
Target of the present invention provides ANTENN AUDIO transmission/receiving system, and the using method that therefore can obtain optimal audio transmission/receive frequency expediently.
Another target of the present invention provides ANTENN AUDIO transmission/receiving system, and the using method that therefore optimum frequency can be set expediently.
Another target of the present invention provides ANTENN AUDIO transmission/receiving system, and the using method that therefore best transmission/receive frequency can be set expediently.
Other advantage, target and characteristic of the present invention will partly be described in the following description, and partly to when examining hereinafter, the personnel with the common knowledge in this area become clear, maybe can be to grasping the application of the present invention.Target of the present invention and other advantages can be realized and obtained by the description of being put down in writing and its claim and accompanying drawing specifically noted structure.
In order to obtain these targets and other advantages, and according to target of the present invention, as implementing at this and briefly describing, ANTENN AUDIO transmission/receiving system is provided, comprise: the FM detector, be used for from radio FM channel, detecting busy channel, microprocessor, be used for being chosen on the frequency significantly different with detected busy channel, thereby not with the use channel of its interference, be installed in the FM transmitter in the audio playback system, in order to pass through to use channel transmission/received audio signal, and external audio system, be used to receive and export audio signal from the FM transmitter.
In another aspect of this invention, ANTENN AUDIO transmission/receiving system is provided, comprise: audio playback system, comprise: the FM detector, be used for from radio FM channel, detecting busy channel, microprocessor, be used for automatically selecting not the use channel of interfering and being installed in FM transmitter in the audio playback system, in order to use transmission/received audio signal on the channel with detected busy channel by preset algorithm; And comprise the external audio system that is used for receiving and export from the FM receiver of the audio signal of FM transmitter.
In the present invention further on the other hand, ANTENN AUDIO transmission/receiving system is provided, comprise: external audio system, comprise: the FM detector, be used for from radio FM channel, detecting busy channel, microprocessor, be used for automatically selecting not the use channel and the loud speaker of interfering, be used for output audio signal with detected busy channel by preset algorithm; And comprise by using channel to send the audio playback system of the FM transmitter of audio signal.
In also one side of the present invention, ANTENN AUDIO transmission/receiving system is provided, comprise: audio playback system, comprise: the FM transmitter, be used for sending audio signal and microprocessor by the use channel of predeterminated frequency section, be used for selecting not the use channel and the external audio system of interfering with radio FM channel by preset algorithm, comprise: the FM receiver is used for detecting radio FM busy channel and receives audio signal from the FM transmitter; And loud speaker, be used for output audio signal.
In still another aspect of the invention, the method of using ANTENN AUDIO transmission/receiving system is provided, the method comprising the steps of: the radio FM busy channel of inquiry audio playback system, be chosen on the frequency significantly different with detected busy channel one or more may channels, from may selecting to use channel and send audio signal by using channel the channel at the FM of audio playback system transmitter, and externally audio system receives and exports this audio signal.
In still another aspect of the invention, the method of using ANTENN AUDIO transmission/receiving system is provided, the method comprising the steps of: the radio FM busy channel of inquiry audio playback system, send about the information of busy channel to audio playback system, select the use channel of interfering and send audio signal by using channel at the FM of audio playback system transmitter with busy channel, and externally audio system receives and exports this audio signal.
Therefore, can obtain best transmission/receive frequency expediently, and strengthen user's convenience thus.
It is exemplary and explanat should understanding aforesaid general description of the present invention and specific descriptions subsequently, is intended to provide further explanation of the present invention as requested.
Description of drawings
What comprised further understands the present invention in order to provide, and is incorporated in the accompanying drawing that this constitutes the application's part, and embodiments of the invention are described, and in order to explain the description of the principle of the invention.In the accompanying drawings:
Fig. 1 is the block diagram according to the ANTENN AUDIO transmission/receiving system of the first embodiment of the present invention;
Fig. 2 is the flow chart of explanation use according to the method for the ANTENN AUDIO transmission/receiving system of the first embodiment of the present invention;
Fig. 3 is the process of possibility channel is selected in explanation in according to the ANTENN AUDIO transmission/receiving system of the first embodiment of the present invention figure;
Fig. 4 is the block diagram of ANTENN AUDIO transmission/receiving system according to a second embodiment of the present invention; And
Fig. 5 is the flow chart that the method for the ANTENN AUDIO transmission/receiving system of using a third embodiment in accordance with the invention is described.
Embodiment
Now will be specifically with reference to the preferred embodiments of the present invention, the example is described in the accompanying drawings.Anywhere possible, run through accompanying drawing and use identical reference number to indicate same or similar parts.
First embodiment
Fig. 1 is the block diagram according to the ANTENN AUDIO transmission/receiving system of the first embodiment of the present invention.
With reference to Fig. 1, ANTENN AUDIO transmission/receiving system comprises audio playback system 1 and external audio system 2.Audio playback system 1 be can plays back audio audio output system.For example, this audio playback system 1 can be MP3 player, display device, portable terminal, DVD player, video cassette recorder VCR, set top box, personal computer, game station, field camera, or other.External audio system 2 is spaced apart with audio playback system 1.External audio system 2 is the systems that are equipped with loud speaker, for example car audio, audio system, loud speaker and remote controllers.
Display device and remote controllers exemplarily have been described as audio playback system 1 and external audio system 2, to describe the present invention.
Hereinafter, ANTENN AUDIO transmission/receiving system of the present invention will more completely be described.
Audio playback system 1 comprises RF antenna 24, in order to receive RF signal, tuner 11 from the broadcasting station, in order to from the RF signal that receives by RF antenna 24, to select signal, the audio signal output unit of expectation, in order to from selected RF signal, extracting audio signal, vision signal output unit, in order to the outputting video signal and the controller of microprocessor 17 for example.
The audio signal output unit comprises audio process 12, in order to from by extracting audio signal, amplifier 13 the tuner 11 selected RF signals, in order to amplify audio signal, the internal loudspeaker 14 that extracts, be converted to sound and FM transmitter 15 in order to the audio signal of will be amplified, in order to be sent in the radio signal of FM frequency.FM transmitter 15 is sent to external audio system 2 with the FM frequency with audio signal, and the FM channel of microprocessor 17 control FM transmitters 15.
The vision signal output unit comprises video processor 20, in order under the control of microprocessor 17, vision signal, back-end system 21 that processing receives from tuner 11, operate and screen 22 in order to carry out for example to tilt and scan, in order to display video signal from the rear end of the vision signal of video processor 20.
Equally, provide user interface 23 to regulate the function of audio playback system 1 to the user.In addition, provide memory 19 with the needed data of the operation of storing audio playback system 1.
The operation of ANTENN AUDIO transmission/receiving system will be described now.
Export by audio signal output unit and vision signal output unit respectively by tuner 11 selected Voice ﹠ Video signals.Usually, by internal loudspeaker 14 output audio signals.Yet when the user wants audio signal with radio transmitting to external audio system 2, when using external audio system 2 output audio signals, the user can pass through user interface 23 operating audio playback systems 1.
That is, connect 23 so that audio signal is sent to external audio system 2 when the user operates the user, microprocessor 17 control audio processors 12 are with to FM transmitter 15 output audio signals.FM transmitter 15 is sent to the FM receiver 62 of external audio system 2 with audio signal, then with audio signal output to loud speaker output port 64.
In order to send and receive control signal, audio playback system 1 comprises second control signal communication dress device 16, and external audio system 2 comprises first control signal communication dress device 63.Control signal communication dress device 16 and 63 is connected to microprocessor 17 and 61, makes microprocessor 17 and 61 can receive control signal.
Control signal communication dress device 16 and 63 can be according to various communications protocols work.For example, IR module (infrared communication), bluetooth module or IEEE802.11b module can be used for control signal communication dress device 16 and 63.That is, the communication protocol of available any kind of sends and receives communicate by letter dress device 16 and 63 s' control signal of control signal.
The FM signal that the FM receiver 62 of external audio system 2 receives from the FM transmitter, and the FM channel that detects the broadcasting station.That is, FM receiver 62 can be carried out the function of FM detector.FM receiver 62 is sent to microprocessor 61 with the FM broadcast channel information, makes microprocessor 61 can select to be used for the suitable channel of the communication between audio playback system 1 and external audio system 2, and needn't disturb the FM broadcast channel.
At length, microprocessor 61 is selective channel between the FM broadcast channel, whether the selected channel of verification is adapted at the communication between audio playback system 1 and the external audio system 2, if use selected channel as the communication channel that is used for communication between audio playback system 1 and external audio system 2.By this communication channel, audio signal is sent to external audio system 2 (FM receiver 62) from audio playback system 1 (FM transmitter 15).Then, external audio system 2 is play the audio signal that receives to the user.
Fig. 2 is the flow chart of explanation use according to the method for the ANTENN AUDIO transmission/receiving system of the first embodiment of the present invention.
With reference to Fig. 2, when the ANTENN AUDIO transmission/receiving system of invention is started working, audio frequency output beginning (step S1), and determine whether to use FM transmitter 15 (step S2).At this moment, when the user did not want to use FM transmitter 15, output audio signal also can pass through internal loudspeaker 14 output audio signals, unless user command (step S12) is provided separately.
Want to use under the situation of FM transmitter 15 the user, further determine whether to be provided with automatically frequency (step S3).At step S3, when the user wanted manually to be provided with the use channel, the user was manually mated the frequency of FM transmitter 15 and the frequency of FM receiver 62, and checked from the audio signal of loud speaker output port 64 outputs, made suitable frequency (step S13) is set.
As the result of step S3, want to be provided with automatically under the situation of using channel the user, further carry out follow-up step.To specifically describe step S3 below.
At first, at FM receiver 62, carry out and survey busy channel, it is the FM channel, uses sky wave to carry out the step (step S4) of broadcasting by it in current location.With the busy channel information that detects be sent to control its 61 and be stored in memory 65 (step S5).Then, with reference to busy channel, controller 61 selects at least one to be suitably in the possible channel (step S6) that sends and receive between FM transmitter 15 and the FM receiver 62.Can may channel be set to take frequency by about core of the shared frequency band of a pair of busy channel.By like this, because reaching, the possibility channel has and the remarkable different frequency of busy channel, disturb the possibility that takes place very little.
Specifically describe the process of selection possibility channel with reference to Fig. 3.
With reference to Fig. 3, surveying channel to be 88.0,95.3,101.5, and 108.0MHz.By this state, can select channel to be the first possibility channel of 91.65MHz, it is the centre frequency in the 88.0-95.3MHz frequency band, the second possibility channel of 98.4MHz, it is that the 3rd of centre frequency in the 95.3-101.5MHz frequency band and 104.75MHz may channel, and it is the centre frequency in the 101.5-108.0MHz frequency band.Can show that from above-mentioned possible channel is farthest a frequency band in busy channel.Select frequency band farthest as mentioned above, the possibility that makes interference take place is very little.
Equally, possible channel has priority, and it can decide according to the degree of possibility channel away from busy channel.According to this degree and since first may channel away from busy channel 3.65MHz, first may have first priority by channel.Similarly and since the 3rd may channel away from busy channel 3.25MHz, the 3rd may have second priority by channel.Equally and since second may channel away from busy channel 3.10MHz, second may have the 3rd priority by channel.
According to this degree, the high likelihood that first may channel has the optimum frequency that is set to be used for radio transmitting/transmission, the 3rd may have secondly high possibility by channel, and second may have minimum possibility by channel.Therefore, can carry out the subsequent step of checking possibility channel by the order of the first possibility channel, the 3rd possibility channel and the second possibility channel.
After aforesaid selection possibility channel, carry out the step (step S7) of checking possibility channel.Particularly, can analyze the process of the noise of the frequency that receives, carry out the step of checking possibility channel by after the frequency band that FM receiver 62 is set to the possibility channel.In verification step, amplify, detect, the signal that rectification (rectify) and direct current-smooth (DC-planarized) receives from FM receiver 62 by default possibility channel.When the DC level of smooth (planarized) signal surpasses the preset reference DC level, judge and may have noise by channel, and therefore can not be as using channel.For example, when the DC level by first signal that may channel receives is 2V, and when being 1V with reference to DC level, judge first may channel it goes without doing uses channel.Multiple situation is arranged, and wherein the channel of selecting for the first time can not be used as the use channel.For example, although may include sky wave broadcasting by channel, when this broadcast singal was very weak, FM receiver 62 can not detect this signal.When disturbing wave occurring owing to local factor, the FM receiver can not correctly detect broadcast singal.Certainly, can use other method, but not analyze the method for noise, carry out the step of checking possibility channel by measuring DC level.
When not selecting first may channel be when using channel, to verify possible channel (step S14) with second priority.As mentioned above, can carry out the selection of the possible channel of the situation of example as shown in Figure 3 by the order of the first possibility channel, the 3rd possibility channel and the second possibility channel.
When in the process of checking possibility channel, when in the possible channel of checking at present, not finding noise (step S7), be provided with current may channel for using channel, its frequency of storage in memory 65, and also to be provided with current may channel be the use channel of FM receiver 62.
Subsequently, will be by the use channel information and the audio playback system 1 synchronous (step S9) of external audio system 2 settings.Synchronous process (step S9) comprising: at first control signal communication dress device 63, under the control of controller 17, to use channel information to be sent to second control signal communication dress device 16, to adorn device 16 in the second control signal communication, the use channel information that receives is delivered to controller 17 and at controller 17, the information stores of carrying in the memory 19 of audio playback system 1 and at controller 17, is provided with the information of carrying to FM transmitter 15.
Subsequently, FM transmitter 15 sends audio signal (step S10) by the frequency of using channel, and FM receiver 62 makes that from the information of FM transmitter 15 reception transmissions and the information that receives by 64 reproductions of loud speaker output port the user can listening to audio signal (step S11).
Because audio playback system 1 is a display device, the user can watch video and listening to audio signal by screen 22.
According to said method, the user can be provided with the required optimum frequency of FM transmitter operation automatically, and effort separately.
Second embodiment
Fig. 4 is the block diagram of ANTENN AUDIO transmission/receiving system according to a second embodiment of the present invention.
Except the setting of using channel is set by audio playback system 1, rather than by outside the external audio system 2, the second embodiment of the present invention is identical with first embodiment.The description of the part of therefore, not mentioning especially in a second embodiment identical with in first embodiment.Different parts is only described below.
Fig. 4 is the block diagram of ANTENN AUDIO transmission/receiving system according to a second embodiment of the present invention.
With reference to Fig. 4, audio playback system 1 further comprise be used for detection wireless electricity FM channel FM detector 18 and be used for radio signal is sent to the FM antenna 25 of FM detector 18.
By this structure, after will being delivered to the controller 17 of audio playback system 1 by the FM channel information that FM antenna 25 and FM detector 18 are surveyed, controller 17 selects to use channel.Equally, selected use channel information is delivered to external audio system 2, and externally audio system 2 is provided with this use channel information.
Certainly, be provided with and use the process of channel to comprise: select the possibility channel, and checking possibility channel.
Second embodiment can be applied to guarantee the operation stability of external audio system, and the situation that therefore can not carry out the selection course of using channel reliably.
The 3rd embodiment
Except differently carrying out in an embodiment the transmission/reception of the control signal between audio playback system and the external audio system, the 3rd embodiment is identical with second embodiment.
In first and second embodiment, one in audio playback system and the external audio system receives radio signals, detect the busy channel that is using, select to use the possible channel of busy channel, be provided with and be the use channel by channel, and will use the information of channel to be sent to another system about this.
Yet first embodiment is problematic, is that the external audio system with low capacity should carry out complex operations.Equally, second embodiment is problematic, is that audio playback system should additionally comprise FM detector 18 and FM antenna 25.
For addressing these problems, more preferably be applied in the high working capacity of the controller 17 in the audio playback system, and the query function that is installed in the FM receiver 62 in the external audio system.
Fig. 5 is the flow chart that the method for the ANTENN AUDIO transmission/receiving system of using a third embodiment in accordance with the invention is described.
With reference to Fig. 1 and 5, start audio frequency output (step S1), determine whether to use FM transmitter (step S2), and determine whether that frequency of utilization is provided with pattern (step S3) automatically.Subsequently, determine whether be stored in (step S100) in the external audio system 2 about busy channel information.
If busy channel information is not stored in the external audio system 2, by receiver 62 scanning busy channels (step S104).Information stores (step S106) in memory 65 about busy channel.
Subsequently, be sent to audio playback system 1 (step S102) by control signal communication dress device 16 and 62 busy channel information with storage.In this case, external audio system does not need the high power capacity microprocessor, because seldom carry out query manipulation by FM receiver 62.
Then, use busy channel information to select to use channel (step S108) in audio playback system 1.This channel selects step identical with the process of first and second embodiment.
In memory 19, store selected use channel, and this use channel is set at FM transmitter 15.Subsequently, by using channel to send audio signal (step S110).Then, externally audio system receives the audio signal that sends by FM receiver 62, then with its output (step S112).
At step S108, can automatically be sent to external audio system by audio playback system about the information of using channel.Certainly, can show by audio playback system 1 and use channel information, and can by the use channel information that shows the use channel be set manually by the user.
In this case, audio playback system 1 does not need to be used for the additional unit of frequency inquiry, therefore structurally simplifies and strengthens on operating reliability.
In another embodiment, when external audio system had big capacity and audio playback system and has low capacity, audio playback system can inquire about busy channel and external audio system can be used channel according to the Information Selection of occupied channel.
When in audio playback system 1 and/or external audio system 2, not having installation and control signal communication dress device 16 and 63, can not the Control on Communication signal.In this case, can be by in two systems, select using the display unit in that of channel to show the use channel information, and can by the user selected use channel information be set manually in another system according to shown use channel information.This also makes the best channel that uses can be set.
As another example, can may channel whether be what expect according to whether there being noise to verify in the audio signal of receiving by the possibility channel at step S7.
As mentioned above, ANTENN AUDIO transmission/receiving system according to the present invention can provide optimal audio transmission/accepting state.Equally, this optimum frequency can be set easily.Correspondingly, can further strengthen user's convenience.
Equally, can further improve the reliability of using channel, but because can verify may channel and because automatic or manual is provided with the use channel.
For those of ordinary skills, various improvement can be carried out in the present invention and distortion is conspicuous.Therefore, the invention is intended to comprise improvement of the present invention and distortion, if these improvement and distortion are within the scope of claims that added and equivalence thereof.
Claims (28)
1. ANTENN AUDIO transmission/receiving system comprises:
Be used for from radio FM channel, detecting the FM detector of busy channel;
Be used for being chosen on the frequency significantly different with the busy channel that is detected, and thus not with the microprocessor of the use channel of its interference;
Be installed in the audio playback system, in order to FM transmitter by described use channel transmission/received audio signal; And
Be used to receive and export external audio system from the audio signal of described FM transmitter.
2. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said use channel is selected by the checking of a plurality of possibility channels.
3. ANTENN AUDIO transmission/receiving system as claimed in claim 2, wherein said possibility channel is significantly different with the frequency band of described busy channel on frequency.
4. ANTENN AUDIO transmission/receiving system as claimed in claim 2 is wherein carried out described checking by noise analysis.
5. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said frequency of utilization are the about centre frequency sections between a pair of adjacent busy channel.
6. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said FM detector and described microprocessor are installed in the described audio playback system.
7. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said FM detector and described microprocessor are installed in the described external audio system.
8. ANTENN AUDIO transmission/receiving system as claimed in claim 7, wherein said FM transmitter receives the radio audio frequency signal from described FM transmitter.
9. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said FM detector are installed among in described audio playback system and the described external audio system one, and described microprocessor is installed in another.
10. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said audio playback system are in MP3 player, display device, portable terminal, DVD player, VCR, set top box, personal computer, game station and the field camera.
11. ANTENN AUDIO transmission/receiving system as claimed in claim 1, wherein said external audio system are one in automobile audio system, audio system, stand-alone loudspeaker and the remote controllers.
12. ANTENN AUDIO transmission/receiving system as claimed in claim 1 further comprises the control signal communication dress device that is used for transmission/reception control signal between described audio playback system and described external audio system.
13. ANTENN AUDIO transmission/receiving system as claimed in claim 12, wherein said control signal are the information about busy channel or use channel.
14. an ANTENN AUDIO transmission/receiving system comprises:
Audio playback system comprises:
Be used for from radio FM channel, detecting the FM detector of busy channel;
Be used for automatically selecting not the microprocessor of the use channel of interfering with the busy channel that detects by preset algorithm; And
Be installed in the audio playback system, in order to FM transmitter by described use channel transmission/received audio signal; And
Comprise the external audio system that is used to receive and export from the FM receiver of the audio signal of described FM transmitter.
15. ANTENN AUDIO transmission/receiving system as claimed in claim 14 further comprises the control signal communication dress device that is used for transmission/reception control signal between described audio playback system and described external audio system.
16. ANTENN AUDIO transmission/receiving system as claimed in claim 15, wherein said control signal comprises the information about described use channel.
17. an ANTENN AUDIO transmission/receiving system comprises:
External audio system comprises:
Be used for from radio FM channel, detecting the FM detector of busy channel;
Be used for automatically selecting not the microprocessor of the use channel of interfering with the busy channel that detects by preset algorithm; And
The loud speaker that is used for output audio signal; And
Comprise the audio playback system that is used for sending the FM transmitter of audio signal by described use channel.
18. ANTENN AUDIO transmission/receiving system as claimed in claim 17 further comprises the control signal communication dress device that is used for transmission/reception control signal between described audio playback system and described external audio system.
19. ANTENN AUDIO transmission/receiving system as claimed in claim 18, wherein said control signal comprises the information about described use channel.
20. an ANTENN AUDIO transmission/receiving system comprises:
Audio playback system comprises:
Being used for use channel by the predeterminated frequency section sends the FM transmitter of audio signal;
Be used for selecting not the microprocessor of the use channel of interfering with radio FM channel by preset algorithm; And
External audio system comprises:
Be used to detect radio FM busy channel and the FM receiver that receives from the audio signal of described FM transmitter; And
The loud speaker that is used for output audio signal.
21. a method of using ANTENN AUDIO transmission/receiving system, the method comprising the steps of:
The radio FM busy channel of inquiry audio playback system;
Be chosen in one or more possibility channels significantly different on the frequency with described busy channel;
May select to use channel the channel from described; And
At the FM of described audio playback system transmitter, send audio signal by described use channel, and externally audio system receives and exports described audio signal.
22. method as claimed in claim 21 wherein is set to described use channel according to priority checking described possibility channel and suitable channel.
23. method as claimed in claim 21 wherein when described noise level that may channel during less than preset value, describedly may be set to described use channel by channel.
24. method as claimed in claim 21, wherein said possibility channel are the centre frequency sections between a pair of busy channel.
25. method as claimed in claim 21 wherein obtains described busy channel, described possibility channel and described use channel from described external audio system.
26. method as claimed in claim 21 wherein obtains described busy channel, described possibility channel and described use channel from described audio playback system.
27. method as claimed in claim 21 is wherein inquired about described busy channel by described external audio system, and selects described possibility channel and described use channel by described audio playback system.
28. a method of using ANTENN AUDIO transmission/receiving system, the method comprising the steps of:
The radio FM busy channel of inquiry audio playback system;
To be sent to described audio playback system about the information of described busy channel;
Select not the use channel that disturbs with described busy channel; And
At the FM of described audio playback system transmitter, send audio signal by described use channel, and receive and export described audio signal in described external audio system.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040054137 | 2004-07-12 | ||
| KR1020040054137A KR101086187B1 (en) | 2004-07-12 | 2004-07-12 | Wireless listening system for television and control method thereof |
| KR1020050061420 | 2005-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1722631A true CN1722631A (en) | 2006-01-18 |
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ID=35912628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100847269A Pending CN1722631A (en) | 2004-07-12 | 2005-07-12 | Wireless audio transmission/reception system and using method therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101086187B1 (en) |
| CN (1) | CN1722631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255681A (en) * | 2010-05-18 | 2011-11-23 | 三星电子株式会社 | Fm transmitter, broadcast receiver, and method for transmitting audio |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101797202B1 (en) | 2009-11-13 | 2017-11-14 | 삼성전자주식회사 | Display apparatus and method for remotly outputting audio thereof and mobile device and method for outputting audio thereof |
-
2004
- 2004-07-12 KR KR1020040054137A patent/KR101086187B1/en not_active IP Right Cessation
-
2005
- 2005-07-12 CN CNA2005100847269A patent/CN1722631A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255681A (en) * | 2010-05-18 | 2011-11-23 | 三星电子株式会社 | Fm transmitter, broadcast receiver, and method for transmitting audio |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101086187B1 (en) | 2011-11-25 |
| KR20060005241A (en) | 2006-01-17 |
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