KR200186226Y1 - Apparatus for called switching of mobile wireless telephone - Google Patents

Abstract

The present invention provides a mobile cordless telephone which automatically switches when the incoming signal of the mobile cordless telephone is detected while the user listens to the audio played by the cassette tape recorder through the earphone. Regarding incoming call transfer device,

A feature of the present invention is an incoming call switching device of a mobile radiotelephone having first, second and third interfacing portions for interfacing a mobile radiotelephone with a cassette tape recorder, the incoming call of the mobile radiotelephone transmitted to the first interfacing portion. A mode switching control unit for outputting a mode switching control signal according to the signal and the audio signal transmitted from the cassette tape recorder connected to the second interfacing unit, and an audio mode and a mobile terminal according to the mode switching control signal transmitted from the mode switching control unit. A switching unit for selectively switching modes, a mode switching switch for transmitting a switching signal for switching an audio mode selectively switched by the switching unit to a mobile terminal mode, and a mode switching switch connected to the mobile radio telephone; 1 Incoming signal transmitted through the interfacing unit And a microphone for outputting a voice signal to the mode switching controller and a variable resistor for varying an audio signal and an incoming signal input to the third interfacing unit connected to the earphone through the switching unit.

As such, the present invention has the advantage of being able to perform a telephone call with the caller through a separate microphone by automatically switching when a call is received while listening to audio with a cassette tape recorder.

Description

Call switching device of mobile cordless telephone {Apparatus for called switching of mobile wireless telephone}

The present invention relates to an incoming call switching device of a mobile wireless telephone, and more particularly, when an incoming signal of a mobile wireless telephone is detected while a user is listening to audio played on a cassette tape recorder through an earphone, The present invention relates to an incoming call switching device of a mobile wireless telephone, which enables a telephone call with a caller through a microphone.

In general, the market for mobile cordless phones is expanding, and the number of users of personal communication systems (PCS) or cellular phones using Code Division Multiple Access (CDMA) is increasing rapidly. Such mobile phones, cassette tape recorders, radios, and CD players are increasing. The use of multifunctional mobile cordless telephones which connect and use audio reproducing apparatuses is increasing.

1 is a block diagram showing an incoming call switching device for a mobile radiotelephone according to the prior art.

1, the first and second interfacing portions 11 and 12 of the call transfer device 10 are connected to the mobile radio telephone 20 and the cassette tape recorder 30, respectively, and the earphone 40 is connected to the telephone. It is connected to the third interface 18 of the incoming call switching device 10. When the mobile phone 20 and the cassette tape recorder 30 are operated, the user puts the earphone 40 on the ear and adjusts the playback operation of the cassette tape recorder 30. The audio recorded on the recording medium is played. Here, the first and second interfacing units 11 and 12 are plugs connected to the earphone jacks mounted on the mobile radio telephone 20 and the cassette tape recorder 30, and the third interfacing unit 18 is the earphone 40 It is a plug configured to insert the earphone jack of).

When the cassette tape recorder 30 performs a reproducing operation, the reproduced audio signal is input to the switching unit 14 through the second interfacing unit 12. At this time, the switching unit 14 is switched to the output line of the second interfacing unit 18. The audio signal reproduced by the cassette tape recorder 30 is output to the earphone 40 through the second interfacing unit 12, the switching unit 14, and the third interfacing unit 16, so that the user reproduces the audio signal. To listen. The sensing unit 15 continuously detects whether an incoming signal of the mobile radio telephone 20 is received through the antenna and transmits the sensing signal to the switching unit 14.

On the other hand, when the incoming signal of the mobile radio telephone 20 is detected through the sensing unit 16, the sensing unit 16 notifies the user of the incoming signal through the light emitting diode (LED).

When the switching unit 14 is switched, the voice signal of the caller input through the mobile wireless terminal 20 is transferred to the earphone 40 through the first interface 11, the switching unit 14, and the third interface 16. One of the earphones is output. The amplifier 13 amplifies a user's voice signal and transmits the voice signal to the mobile wireless telephone 20 through the first interface 11. That is, one of the first earphone or the second earphone of the earphone 40 is used as an earphone which is an original function to listen to the caller's voice signal, and the other earphone is used as a microphone for inputting the user's voice signal.

When the telephone call is completed or the telephone call is forcibly interrupted during the telephone call, the switching unit 14 is switched to switch the audio signal.

By the way, according to the prior art call switching device of the mobile radio telephone, the following problems occur.

When the user detects an incoming call while listening to audio through the cassette tape recorder, the call is switched to make a call with the caller.Because the mobile phone and the cassette tape recorder are simply connected and interfaced, the user can easily receive a call while listening to the audio. It was not possible to check it, and it was inconvenient for the user to select one of the earphones and replace it with a microphone.

Therefore, the present invention is to solve such a problem, an object of the present invention is when the incoming call signal from the mobile wireless telephone is detected while the user is listening to the audio transmitted from the cassette tape recorder using the earphone, An object of the present invention is to provide an incoming call switching device for a mobile wireless telephone that automatically switches modes so that a call can be made to a caller through a separate microphone while blocking the transmitted audio signal.

1 is a block diagram showing an incoming call switching device of a mobile radio telephone according to the prior art;

2 is a block diagram showing an incoming call switching device of the mobile radio telephone according to the present invention;

3 is a perspective view showing a connection state of a call switching device of the mobile wireless telephone shown in FIG. 2;

<Description of the code used in the main part of the drawing>

100: incoming call switching device 110: first interfacing unit

120: switching unit 130: mode switching control unit

140: mode switching switch 150: the second interface

160: third interfacing unit 200: mobile wireless telephone

300: cassette tape recorder 400: earphone

A feature of the present invention for achieving the above object is, in the incoming call switching device of the mobile radiotelephone having the first, second, and third interfacing unit for interfacing the mobile radiotelephone and the cassette tape recorder, the transmission to the first interfacing unit; A mode switching control unit for outputting a mode switching control signal according to an incoming signal of the mobile wireless telephone and an audio signal transmitted from the cassette tape recorder connected to the second interface unit, and a mode switching control signal transmitted from the mode switching control unit. A switching unit for selectively switching an audio mode and a mobile terminal mode according to the present invention, a mode switching switch for transmitting a switching signal for switching the audio mode selectively switched by the switching unit to the mobile terminal mode; A first interface connected to the mobile radiotelephone Corresponding to the receiving signal transmitted over to include a variable resistor for varying the microphone and the audio signal switching unit and the receiving signal received by the third interface unit is connected to the earphone through which output an audio signal to the mode switching control.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a block diagram illustrating an incoming call switching device of the mobile radio telephone according to the present invention, and FIG. 3 is a perspective view showing a connection state of the incoming call switching apparatus of the mobile radio telephone shown in FIG. 2.

2 and 3, the incoming call switching device 100 is connected to the mobile radio telephone 200, the cassette tape recorder 300, and the earphone 400 as shown in FIG. The first interfacing unit 110 constituting the incoming call switching device 100 is connected to the jack 202 inserted into the plug 201 of the mobile radio telephone 200 and connected to the plug 102 of the incoming call switching device 100. When switched to the mobile terminal mode connected to the jack 101 is inserted, the user's voice signal by the variable of the variable resistor (VR1, VR2) connected to the switching unit 120 is interfaced to the mobile radio telephone 200 and The voice signal of the caller input from the mobile radio telephone 200 is interfaced to the switching unit 120.

The variable resistors VR1 and VR2 connected to the switching unit 120 are controlled by the volume switch VS shown in FIG. 3, and the variable resistors VR1 and VR2 according to the switching operation of the switching unit 120. Selectively adjust

The second interfacing unit 150 is connected to the jack 302 inserted into the plug 301 of the cassette tape recorder 300 and connected to the jack 104 inserted into the plug 103 of the call transfer device 100. The audio signal transmitted from the cassette tape recorder 300 is interfaced to the switching unit 120. The plugs 103 and 301 and the jacks 104 and 302 connecting the second interface 150 and the cassette tape recorder 300 are larger in size than other plugs and jacks.

In addition, when the third interfacing unit 160 is connected to the earphone jack 106 of the earphone 400 inserted into the plug 105 of the incoming call switching device 100 and switches the switch SW to become an audio mode, the cassette When the audio signal transmitted from the tape recorder 300 is interfaced to the earphone 400 and the switch SW is switched to the mobile terminal mode, the voice signal input from the microphone MIC by pressing the send switch SEND SW. Is transmitted to the first interfacing unit 110 through the mode switching controller 130 and the switching unit 120. At this time, the incoming call switching device 100 has a form of a hanger (EA) so as to walk on the user's clothes as shown in FIG.

Meanwhile, when the incoming signal of the mobile wireless telephone 200 is transmitted to the first interfacing unit 110, the mode switching controller 130 connected to the first interfacing unit 110 outputs a mode switching control signal to the switching unit 120. ) And the second interfacing unit 150.

The switching unit 120 transmits the incoming signal interfaced by the first interface unit 110 to the third interface unit 160 according to the mode switching control signal of the mode switching controller 130 that is transmitted, and transmits the second interface unit 160 to the second interface unit 160. The unit 150 blocks the audio signal of the cassette tape recorder 300. In addition, when the playback signal of the cassette tape recorder 300 is interrupted in the audio mode and forced to switch to the mobile terminal mode, the mode switching switch 130 is pressed to generate the mode switching control signal by pressing the mode switching switch 140. .

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by the utility model registration claims as described below and equivalents to the utility model registration claims.

As such, the present invention has an advantage of automatically switching when a call is received while listening to audio with a cassette tape recorder, and performing a telephone call with a caller through a separate microphone.

Claims (1)

In the incoming call switching device of a mobile radiotelephone having a first, second, third interface for interfacing a mobile radiotelephone and a cassette tape recorder, A mode switching controller for outputting a mode switching control signal in accordance with an incoming signal of the mobile radio telephone transmitted to the first interfacing unit and an audio signal transmitted from the cassette tape recorder connected to the second interfacing unit; A switching unit for selectively switching an audio mode and a mobile terminal mode according to a mode switching control signal transmitted from the mode switching controller; A mode switching switch for transmitting a switching signal for switching the audio mode selectively switched by the switching unit to a mobile terminal mode, to the mode switching controller; A microphone for outputting a voice signal to the mode switching controller in response to an incoming signal transmitted through a first interfacing unit connected to the mobile radio telephone; And a variable resistor for varying an audio signal and an incoming signal input to the third interfacing unit connected to the earphone through the switching unit.