CN100382658C - Portable terminal wireless microphone apparatus and method - Google Patents
Portable terminal wireless microphone apparatus and method Download PDFInfo
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- CN100382658C CN100382658C CNB2004100369489A CN200410036948A CN100382658C CN 100382658 C CN100382658 C CN 100382658C CN B2004100369489 A CNB2004100369489 A CN B2004100369489A CN 200410036948 A CN200410036948 A CN 200410036948A CN 100382658 C CN100382658 C CN 100382658C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Abstract
To provide a magnetic recording medium having good electromagnetic conversion characteristics and stable traveling durability by applying a substance having dispersion power to an underlayer nonmagnetic layer of the magnetic recording medium.The underlayer nonmagnetic layer containing at least inorganic powder and carbon black and a magnetic layer are successively disposed on a nonmagnetic support and at least one among the polyene polycarboxylic acid expressed by formula (1) and a derivative in its carboxylic group and their salts are incorporated into the underlayer nonmagnetic layer as a dispersant. In the formula, n expresses an integer from 0 to 5 and m an integer of 1 or 2. (C)2004,JPO&NCIPI.
Description
Technical field
The present invention relates to the wireless microphone additional function of portable terminal device, particularly a kind of radio microphone device of portable terminal device and method, after being chosen as the work of wireless microphone pattern, the transmission frequency of microphone radio section is tuned to consistent with the receive frequency of wireless microphone, with the voice-grade signal of this wireless transmission high-quality.
Background technology
Portable terminal device (MS:MOBILE STATION) is a kind of most advanced and sophisticated signal equipment, and the individual can communicate when carrying, moving, and moves freely in the service area of the mobile communication system that networks, and communicates whenever and wherever possible with after the other side's wireless connections.
The above-mentioned this easy-to-use signal equipment that when moving, communicates with the other side's wireless connections whenever and wherever possible, it is actually used in the time less of communication, most of the time is to carry with communication standby (STANDBY) state, and the time used of portable terminal device or utilization rate are extremely low.
For utilization or the utilization rate that improves above-mentioned mobile communication portable terminal device, the mobile communication service provider has been developed the value-added service of various mobile communication system, for example services such as recreation or Wi-Fi (Wireless Internet Access), short message transmission, the transmission of image note offer the user and use when collecting certain communication cost.In addition, terminal manufacturer has also been developed the additional function of multiple portable terminal device, such as telephone directory book record, memorandum record, Message Record, schedule management, recreation, camera function, calculator function, prompting function etc., these additional functions are built in the portable terminal device, and the user need not to pay the communication line usage charges and just can use voluntarily.
Above-mentioned value-added service is owing to be connected with mobile communication system, take respective channel, so channel occupancy takes place to be taken, above-mentioned additional function is to use the built-in additional function of portable terminal device self, so the channel occupancy expense does not take place, but there is the limitation that can't directly use in the real life in additional function major part in the past about communication.
Therefore, as the additional function of the portable terminal device that is applied to above-mentioned real life, add the radio microphone function that is connected with wireless microphone in above-mentioned portable terminal device, this exploitation is necessary.
With reference to the accompanying drawings, portable terminal device additional function under the conventional art is described.
Fig. 1 is the general utility functions pie graph of mobile communication system, and Fig. 2 is the portable terminal device using method flow chart under the conventional art, and both all are used to illustrate conventional art.
Constitute by following several sections as mobile communication system above-mentioned shown in Figure 1, general: portable terminal device (MS) (10), it can move in the service area of the mobile communication system that networks automatically, carries out wireless connections with the other side whenever and wherever possible and also communicates by letter; Base station (BS:BASE STATION) (20), it and above-mentioned portable terminal device (10) carry out wireless connections, receive to send signal of communication, and form service area; Mobile switching centre (MSC:MOBILE SWITCHING CENTER) (30), it is connected with above-mentioned base station (20), analyze the call connection request signal and exchange (SWITCHING), with this communication path is set, transmission respective communication signal monitors and controls the overall operation of mobile communication system simultaneously.
Describe the mobile communication system that as above constitutes below in detail.Above-mentioned base station (20) forms certain service area, in the service area of above-mentioned formation, receives the transmission signal of communication with a plurality of portable terminal devices (10), many above-mentioned this base stations (20) are adjacent one another are, and link together, they spread all over the country, and make the whole nation form the mobile communication service area.
Above-mentioned portable terminal device (10) moves freely in the service area that above-mentioned a plurality of base stations (20) form, whenever and wherever possible with the other side's wireless connections and communicate, Content of Communication mainly is the communication of voice level, as the value-added service that mobile communication system provides, also can use SMS (Short Message Service) based on literal and symbol; Above-mentioned mobile station (30) is connected with the other side's communication path by switch (SWITCHING) setting the call connection request signal-dialing signal of the portable terminal device (10) that inserts by base station (20).
The above-mentioned portable terminal device (10) that is provided with communication path utilizes the voice-grade signal to communicate, or carries out short message communication, image short message communication and realtime graphic communication, wireless internet connection, game on line as the data level of value-added service etc.
If the above-mentioned portable terminal device of unfavorable usefulness (10) is connected to base station (20), when using communication service that mobile communication system provides or value-added service, can use self built-in additional function, be telephone directory book record management, memorandum record, Message Record, schedule management, recreation, camera function, calculator function, prompting function etc., or keep holding state.
With reference to the accompanying drawings 2, the portable terminal device using method under the conventional art is described.It comprises following several steps:
The additional function pattern that the 1st step (S10), portable terminal device (10) have judged whether to select self to have is used; The 2nd step (S20), (S10) judges in above-mentioned steps, when using additional function, then shows the menu of all additional functions that portable terminal device provides at display part; The 3rd step (S30) judges whether to have selected one in the additional function that above-mentioned steps (S20) shows; The 4th step (S40), (S30) judges in above-mentioned steps, when non-selected additional function, then turns back to above-mentioned the 1st step (S10), when having selected additional function, then carries out corresponding additional function; The 5th step (S50) is judged in above-mentioned the 1st step (S10), when non-selected additional function pattern, judges whether to have selected communication pattern; The 6th step (S60), (S50) judges in above-mentioned steps, when having selected communication pattern, then uses the mobile communication service; The 7th step (S70) is judged in above-mentioned steps (S50), when non-selected communication pattern, then judges whether to have selected value-added service; The 8th step (S80) is judged in above-mentioned steps (S70), when non-selected value-added service, then turns back to above-mentioned the 1st step (S10), when having selected value-added service, then uses the corresponding value-added service of selecting.
With reference to the accompanying drawings, describe portable terminal device using method under the above-mentioned conventional art in detail.
Portable terminal device (10) judges whether to have selected the additional function pattern, uses built-in additional function (S10); Above-mentioned judgement (S10) result then shows the menu (S20) of all built-in additional functions if selected the additional function pattern in display part; Judged whether to select specific additional function (S30); Above-mentioned judgement (S30) result then uses selected corresponding additional function if selected specific additional function (S30), finishes then (S40).
In addition, judge, when non-selected additional function pattern in above-mentioned the 1st step (S10), then judge whether to have selected communication pattern (S50), above-mentioned judgement (S50) result then uses the mobile communication service if selected communication pattern, finishes then (S60).
In addition, judge in above-mentioned the 5th step (S50), when non-selected communication pattern, then judge whether in the multiple value-added service that mobile communication system provides, to have selected certain value-added service (S70), above-mentioned judged result is if above-mentioned the 1st step (S10) is then returned in non-selected value-added service, when certain value-added service of having selected mobile communication system to provide, then use corresponding value-added service (S80), finish then.
But, under above-mentioned conventional art, the additional function that portable terminal device (10) provides is mainly about communication, such as, prompting function of the camera function of the telephone directory book of record management the other side's telephone number commonly used, the memorandum function that need not the simple memorandum of record of paper pen, the Message Record that need not the making message of paper pen, the schedule management that is used for managing schedule, the recreation that carries, shooting and document image, the calculator function that carries out computing, notice temporal information or the like.
Therefore, there are the following problems for above-mentioned conventional art,, do not have necessary function in the daily life that is, particularly can not provide towards everybody deliver a speech or amusement in use send the radio microphone function of voice-grade signal to wireless microphone.
Summary of the invention
The object of the present invention is to provide a kind of radio microphone device and method of portable terminal device, additional function as portable terminal device, interpolation sends the radio microphone function of voice-grade signal to wireless microphone, receive frequency particularly automatic and wireless microphone carries out tuning, sends the voice-grade signal.
For achieving the above object, feature of the present invention is to be made of following several sections: audio portion, and it is the voice-grade conversion of signals that the signal of telecommunication is imported, and electrical signal conversion is exported for the voice-grade signal; Control part, it is connected with above-mentioned audio portion, according to corresponding selection, controls the voice-grade signal path output of above-mentioned audio portion; The microphone radio section, it is connected with above-mentioned control part, becomes the voice-grade conversion of signals of input the wireless microphone frequency to send; Mobile communication wireless portion, it is connected with above-mentioned control part, and to distribute to the frequency of mobile communication, wireless receiving sends the voice-grade signal.
Another feature of the present invention is to be made of following several steps: the beginning step, when portable terminal device being chosen as the use of wireless microphone pattern, judge whether the microphone radio section is identical with the wireless microphone frequency; Aligning step in above-mentioned steps, when the receive frequency untuned of transmission frequency that is judged as portable terminal device and wireless microphone, is then imported the receive frequency of wireless microphone, the microphone radio section of tuning portable terminal device; Send the words step,, then use as wireless microphone when when the audio portion of the tuning portable terminal device of above-mentioned process has been imported the voice-grade signal.
Description of drawings
Fig. 1 is the general utility functions pie graph of mobile communication system,
Fig. 2 is the portable terminal device using method flow chart under the conventional art,
Fig. 3 is the radio microphone device function constitution map of portable terminal device of the present invention,
Fig. 4 is the detailed functions pie graph of microphone radio section of the present invention,
Fig. 5 is the wireless speech transmitting method flow chart of portable terminal device of the present invention.
Embodiment
The radio microphone device and the method for portable terminal device of the present invention are described with reference to the accompanying drawings.
Fig. 3 is the radio microphone device function constitution map of portable terminal device of the present invention, and Fig. 4 is the detailed functions pie graph of microphone radio section of the present invention, and Fig. 5 is the wireless speech transmitting method flow chart of portable terminal device of the present invention, and above-mentioned accompanying drawing all is used to illustrate the present invention.
As above-mentioned Fig. 3 and shown in Figure 4, the radio microphone device of portable terminal device of the present invention (100) is made of following several sections: audio portion (110), be used for the voice-grade conversion of signals is become signal of telecommunication input, become electrical signal conversion the voice-grade signal to export;
Control part (120), it is connected with above-mentioned audio portion (110), according to corresponding selection, control the voice-grade signal path output of above-mentioned audio portion (110), when being chosen as a portable terminal device (100), then make the voice-grade signal of above-mentioned audio portion (110) input output to above-mentioned microphone radio section (130) as wireless microphone;
Microphone radio section (130), it is connected with above-mentioned control part (120), in order to become the voice-grade conversion of signals of input the wireless microphone frequency to send, carries out tuningly with the wireless receiving frequency that inserts from the external wireless loudspeaker, and the wireless transmission frequency is set.It is made of following several sections again: local oscillation portion (132), and its effect is to utilize voltage control, input signal is generated the local oscillation frequency signal that is converted to the wireless transmission frequency; Frequency mixer portion (134), its effect is that the voice-grade signal to the frequency of above-mentioned local oscillation portion (132) and input carries out mixing; Radio section (136), its effect are the signal inputs that receives above-mentioned frequency mixer portion (134), carry out wireless transmission after converting thereof into the receive frequency of wireless microphone; Frequency comparing section (138), its effect are that the transmission frequency of above-mentioned radio section (136) and external wireless loudspeaker receive frequency are compared, output and both difference control signal corresponding;
Mobile communication wireless portion (140), it is connected with above-mentioned control part (120), receives with the frequency wireless of distributing to mobile communication and sends the voice-grade signal.
In addition, above-mentioned local oscillation portion (132) adjusts generated frequency according to the voltage control signal that receives from said frequencies comparing section (138).
With reference to the accompanying drawings, describe the portable terminal device radio microphone device that as above constitutes that has of the present invention in detail.
Portable terminal device (100) can be according to selection, is wireless microphone pattern as one of additional function from the communication pattern state exchange, uses as wireless microphone.After control part (120) identified above-mentioned selection, the voice-grade signal that cuts off audio portion (110) input led to the path of mobile communication wireless portion (140), and the respective paths that it is inserted above-mentioned wireless microphone portion (130) is set.
Above-mentioned microphone radio section (130) inserts frequency mixer portion (134) to the voice-grade signal of input under the control of control part (120), in above-mentioned frequency mixer portion (134), also inserted local oscillation frequency from local oscillation portion (132).
Above-mentioned frequency mixer portion (134) carries out mixing to the voice-grade signal and the local oscillation frequency of input respectively, signal after the modulation is inserted radio section (136), above-mentioned radio section (136) is adjusted into appropriate frequency to the signal of input, carries out wireless output by respective antenna.
The frequency of the voice-grade signal by the wireless output of radio section (136) is the frequency that wireless microphone can range of receiving (such as 20KHz to 50KHz scope) like this.
The frequency that above-mentioned wireless microphone receives is answered consistent or tuning (TUNING) with the frequency that above-mentioned microphone radio section (130) sends, above-mentioned tuning in order to carry out, frequency comparing section (138) receives from the receive frequency of external wireless loudspeaker input and the transmission frequency of importing from above-mentioned radio section (136), the above-mentioned frequency of input is respectively compared, to above-mentioned local oscillation portion (132) output and both difference control signal corresponding.
Above-mentioned local oscillation portion (132) proofreaies and correct according to the control signal that inserts from frequency comparing section (138), improve or reduce local oscillation frequency, make from the frequency signal of above-mentioned radio section (136) output consistent with the frequency that the said external wireless microphone receives, even not under the situation of said frequencies comparing section (138) input control signal, above-mentioned local oscillation portion (132) still continues the local oscillation frequency that output has been provided with.
Said frequencies comparing section (138) is at first in order to make the reception transmission frequency consistent with wireless microphone, the receive frequency of input wireless microphone, when the transmission frequency of above-mentioned radio section (136) output is consistent with the receive frequency of wireless microphone, then cuts off the receive frequency of above-mentioned wireless microphone and import.
From the step of above-mentioned wireless microphone input receive frequency is the corresponding connecting line that utilizes wireless microphone to have, and portable terminal device (100) also has the jack that is used to import the said frequencies signal.
Therefore, the portable terminal device of the invention described above (100) can as wireless microphone, when using a plurality of above-mentioned portable terminal devices (100), can use a wireless microphone in places such as meeting-place or classrooms simultaneously by selecting the wireless microphone pattern.
Below with reference to above-mentioned Fig. 5, the wireless speech transmitting method of portable terminal device of the present invention is described.It is made of following several steps:
The beginning step when portable terminal device (100) being chosen as the use of wireless microphone pattern, judges whether microphone radio section (130) and wireless microphone be tuning.This step comprises following several steps again: step 1 (S100), judge by control part (120) whether be chosen as wireless microphone pattern (MODE); Step 2 (SS10) is judged in above-mentioned steps (S100), and when having selected the wireless microphone pattern, whether the receive frequency of then judging microphone radio section (130) transmission frequency of portable terminal device (100) and wireless microphone tuning (TUNING);
Aligning step, in above-mentioned beginning step, when the receive frequency untuned (TUNING) of transmission frequency that is judged as portable terminal device (100) and wireless microphone, then import the receive frequency of wireless microphone, carry out tuning to the microphone radio section (130) of portable terminal device (100).This step comprises following several steps again: step 1 (S120), and input is used for the receive frequency of tuning wireless microphone; Step 2 (S130), whether the microphone radio section transmission frequency of judging the receive frequency of wireless microphone of above-mentioned steps (S120) input and portable terminal device tuning (TUNING); Step 3 (S140) is judged in above-mentioned steps (S130), when tuning, cuts off the receive frequency input of wireless microphone; Step 4 (S170), at above-mentioned steps (S130), when microphone radio section (130) the transmission frequency untuned of receive frequency that is judged as wireless microphone and portable terminal device (100), be benchmark with the wireless microphone receive frequency, proofread and correct above-mentioned microphone radio section (130) transmission frequency;
Send the words step: when from above-mentioned when tuning portable terminal device audio portion (110) has been imported the voice-grade signal, use as wireless microphone.This step comprises following several steps again: step 1 (S150) judges whether to have imported by the audio portion (110) of portable terminal device (100) and is used for the wireless voice-grade signal that send words; Step 2 (S160) is judged in above-mentioned steps (S150), is used for the wireless voice-grade signal that send words if imported, and then uses as wireless microphone, carries out wireless transmission by microphone radio section (130).
Below with reference to Fig. 5, describe the wireless speech transmitting method with the portable terminal device (100) that as above constitutes of the present invention in detail.
Judgement is to utilize mobile communication portable terminal device (100) as communication pattern, still is chosen as the wireless microphone pattern and uses (S100).In above-mentioned judgement, when being when being chosen as the wireless microphone pattern and using, tuning (TUNING) (S110) for the microphone radio section (130) of judging wireless microphone and portable terminal device.
That is the wireless frequency of judging wireless frequency signal that radio section (136) that above-mentioned portable terminal device (100) microphone radio section (130) has sends and wireless microphone reception tuning (TUNING) consistent (S110) whether.
In above-mentioned judgement (S110), when the transmission frequency of the receive frequency of wireless microphone and radio section (136) is tuned, carry out the above-mentioned words step (S150) of sending; When untuned, for tuning, the receive frequency (S120) of input wireless microphone, whether the transmission frequency of judging the receive frequency of above-mentioned input and radio section (136) tuning (S130).In above-mentioned judgement (S130), when untuned, the transmission frequency (S170) of correcting wireless portion (136) is returned (FEEDBACK) above-mentioned tuning determining step (S130) then.
In above-mentioned tuning determining step (S130),, then cut off the receive frequency (S140) of above-mentioned wireless microphone input when being judged as when tuned.
Portable terminal device (100) control part (120) judges whether to have imported voice-grade signal (S150) from above-mentioned audio portion (110) after the receive frequency of the transmission frequency of having confirmed above-mentioned microphone radio section (130) and wireless microphone is tuned.In above-mentioned judgement (S150), when having imported the voice-grade signal, then connect the path of audio portion (110) and microphone radio section (130), microphone radio section (130) utilizes the voice-grade signal of the above-mentioned input of respective transmit frequency wireless transmission.
According to the kind of wireless microphone, above-mentioned radio section (136) is variant slightly as the wireless transmission frequency of words of sending, such as in the scope of 20KHz to 50KHz.
The invention described above can be chosen as wireless microphone pattern (S100) to portable terminal device (100), make the transmission frequency of microphone radio section (130) and the receive frequency tuning (S110 to S140) of wireless microphone, through above-mentioned tuning after, the voice-grade signal of wireless transmission audio portion (110) input, portable terminal device (100) is used as wireless microphone (S150, S160), thus can be a plurality of portable terminal devices (100) simultaneously as the wireless microphone of same transmission frequency.
As above the present invention of Gou Chenging has a following result of use industrial, that is, by portable terminal device being used the simply and easily operation of model selection as the wireless microphone pattern, just can be where necessary portable terminal device effect wireless microphone.
Also has the convenient effect in the following use in addition, utilization is in the local oscillation portion of voltage control down conversion frequency of oscillation, detect difference with the receive frequency that inserts from wireless microphone, adjust the local oscillation frequency that local oscillation portion produces, thereby can utilize the good quality audio of transmission frequency transmission accurately level signal.
And, can be used as wireless microphone to a plurality of portable terminal devices simultaneously, so, need not prepare a plurality of wireless microphones in places such as meeting-place.
Claims (9)
1. the radio microphone device of a portable terminal device is characterized in that being made of following several sections:
Audio portion, it is the voice-grade conversion of signals that the signal of telecommunication is imported, and electrical signal conversion is exported for the voice-grade signal;
Control part, it is connected with above-mentioned audio portion, and according to being chosen as communication pattern or wireless microphone pattern, the audio signal output of controlling above-mentioned audio portion is to mobile communication wireless portion or microphone radio section;
The microphone radio section, it is connected with above-mentioned control part, becomes the voice-grade conversion of signals of input the wireless microphone frequency to send, and this microphone radio section comprises local oscillation portion, frequency mixer portion, radio section and frequency comparing section;
Mobile communication wireless portion, it is connected with above-mentioned control part, the frequency of this mobile communication wireless portion mobile communication of this control section dispensing, this mobile communication wireless portion wireless receiving sends the voice-grade signal.
2. the radio microphone device of portable terminal device according to claim 1 is characterized in that:
Above-mentioned microphone radio section carries out tuning to the wireless receiving frequency that inserts from the external wireless loudspeaker, the wireless transmission frequency is set.
3. the radio microphone device of portable terminal device according to claim 2 is characterized in that above-mentioned microphone radio section is made of following several sections:
Local oscillation portion adjusts the local oscillation frequency signal according to a control signal;
Frequency mixer portion carries out mixing to the frequency signal of above-mentioned local oscillation portion and the voice-grade signal of input;
Radio section receives the signal input of above-mentioned frequency mixer portion, carries out wireless transmission after converting thereof into the receive frequency of wireless microphone;
The frequency comparing section, transmission frequency and external wireless loudspeaker receive frequency to above-mentioned radio section compare, output and corresponding this control signal of both differences are given above-mentioned local oscillation portion, make this local oscillation portion adjust the local oscillation frequency signal according to this control signal.
4. the radio microphone device of portable terminal device according to claim 3 is characterized in that:
Above-mentioned local oscillation portion is according to inserting the frequency that voltage control signal is adjusted generation from the said frequencies comparing section.
5. the wireless speech transmitting method of a portable terminal device is characterized in that being made of following several steps:
The beginning step when portable terminal device being chosen as the use of wireless microphone pattern, judges whether the transmission frequency of microphone radio section and wireless microphone frequency be tuning;
Aligning step, in above-mentioned steps, when the receive frequency untuned of transmission frequency that is judged as the microphone radio section and wireless microphone, then import the receive frequency of wireless microphone, the transmission frequency of the microphone radio section of tuning portable terminal device is tuning consistent with the receive frequency of wireless microphone, when tuning, cut off the receive frequency input of wireless microphone;
Send the words step,, then use as wireless microphone when when the audio portion of the tuning portable terminal device of above-mentioned process has been imported the voice-grade signal.
6. the wireless speech transmitting method of portable terminal device according to claim 5 is characterized in that above-mentioned beginning step comprises following several steps:
Step 1 is judged by the portable terminal device control part, judges whether to be chosen as the wireless microphone pattern and uses;
Step 2 is judged in above-mentioned steps 1, when having selected the wireless microphone pattern, judges then whether the receive frequency of the microphone radio section transmission frequency of portable terminal device and wireless microphone is tuning.
7. the wireless speech transmitting method of portable terminal device according to claim 5 is characterized in that above-mentioned aligning step comprises following several steps:
Step 1, in above-mentioned beginning step, when with the wireless microphone untuned, input is used for the receive frequency of tuning wireless microphone;
Step 2 judges whether the microphone radio section transmission frequency of the receive frequency of wireless microphone of above-mentioned steps 1 input and portable terminal device is tuning;
Step 3 is judged in above-mentioned steps 2, when tuning, cuts off the receive frequency input of wireless microphone.
8. the wireless speech transmitting method of portable terminal device according to claim 7 is characterized in that also comprising as next procedure:
When the microphone radio section transmission frequency untuned of receive frequency that is judged as wireless microphone and portable terminal device, be benchmark with the wireless microphone receive frequency, proofread and correct above-mentioned microphone radio section transmission frequency.
9. the wireless speech transmitting method of portable terminal device according to claim 5 is characterized in that the above-mentioned words step of sending comprises following two steps:
Step 1 judges whether to have imported by the audio portion of portable terminal device and is used for the wireless voice-grade signal that send words;
Step 2 is judged in above-mentioned steps 1, is used for the wireless voice-grade signal that send words if imported, and then uses as wireless microphone, carries out wireless transmission by the microphone radio section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP0060888/2003 | 2003-09-01 | ||
| KR1020030060888A KR100641135B1 (en) | 2003-09-01 | 2003-09-01 | A method and a apparatus of operating wireless microphone by using mobile phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1592493A CN1592493A (en) | 2005-03-09 |
| CN100382658C true CN100382658C (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100369489A Expired - Fee Related CN100382658C (en) | 2003-09-01 | 2004-04-21 | Portable terminal wireless microphone apparatus and method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100641135B1 (en) |
| CN (1) | CN100382658C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454781C (en) * | 2005-03-11 | 2009-01-21 | 联想(北京)有限公司 | Method for implementing association between radio loudspeaker and radio sound source |
| CN102170607A (en) * | 2010-02-26 | 2011-08-31 | 嘉强电子股份有限公司 | Wireless voice amplification system and volume control method of wireless microphone and wireless voice amplification system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5982904A (en) * | 1998-01-22 | 1999-11-09 | Voice Communication Interface Corp. | Wireless headset |
| US6389297B1 (en) * | 1998-04-20 | 2002-05-14 | Alcatel | Radiocommunications terminal |
-
2003
- 2003-09-01 KR KR1020030060888A patent/KR100641135B1/en not_active IP Right Cessation
-
2004
- 2004-04-21 CN CNB2004100369489A patent/CN100382658C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5982904A (en) * | 1998-01-22 | 1999-11-09 | Voice Communication Interface Corp. | Wireless headset |
| US6389297B1 (en) * | 1998-04-20 | 2002-05-14 | Alcatel | Radiocommunications terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100641135B1 (en) | 2006-11-02 |
| CN1592493A (en) | 2005-03-09 |
| KR20050022453A (en) | 2005-03-08 |
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Granted publication date: 20080416 Termination date: 20110421 |