JP2003284015A - Cellular phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional cellular phone requires a user to have a headset nearby for alltimes for implementing TV telephone operation, which is burdensome to the user to carry it. <P>SOLUTION: A folding type cellular phone 10 is made available to conduct TV telephone operation because it is mounted with a camera 12, and can conduct a TV telephone call when the other party station is mounted with a camera. When the phone is opened by 90°, a metal terminal 22a and a metal terminal 22b located within a hinge section 20 are brought into contact condition, and a control section in the cellular phone 10 determines that the opening angle is approximately 90° according to the condition. Subsequently, the control section transits to a hands-free mode, when it determines that the phone is in communication condition of TV telephone. In the hands-free mode, as for voice at the own station, a microphone 17 goes to a high sensitivity mode and received voice of the other party station is outputted from a speaker 18. Since the phone is in communication condition TV telephone, the handsfree operation can be established without burdensome operations, by just making the opening angle to 90°. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone,
In particular, it relates to a mobile phone equipped with a camera and realizing a videophone.

[0002]

2. Description of the Related Art In order to realize a videophone by mounting a camera on a mobile phone, it is necessary to transmit the image and sound of the user to the other party at the same time. Need to see. Therefore, while using a headset (with earphone and microphone) as a conventional mobile phone, projecting your own image on the camera equipped with it, while transmitting your voice from the headset microphone to the other party, Can be displayed on the display unit of the mobile phone, and the voice of the other party can be heard through the earphones of the headset.

[0003]

However, the above-mentioned conventional portable telephone has a problem that the user has to carry the headset at all times, which is very troublesome to carry around.

The present invention has been made in view of the above points,
An object of the present invention is to provide a mobile phone that can be used hands-free without performing a troublesome operation during a communication state of a TV phone.

Another object of the present invention is to combine a function of a TV phone and a hands-free function, and in a folding type portable telephone, a "hinge mechanism" which is a mechanically greatest feature is to detect a folding angle of the portable telephone. It is to provide a mobile phone that realizes a hands-free mode by providing the function of

[0006]

In order to achieve the above object, a first aspect of the present invention includes a first casing portion having at least an input portion and a microphone, and a first casing portion having at least a camera, a display portion and a receiver. The second housing portion is movably coupled to each other, and the relative movement of the first and second housing portions causes the input portion to be completely covered by the second housing portion. In the mobile phone used in either one of the fully opened states in which the input unit is exposed from the second casing unit and is usable, in the first casing unit and the second casing unit, A speaker for ringing a ring tone, an opening / closing detection means for detecting whether or not a predetermined opening / closing state is provided between the fully closed state and the fully opened state, which is provided on either one of them, and the camera is operated to use. Image signal of a person is transmitted and the received image of the other party is displayed on the display unit The TV telephone determining means for determining whether or not the V telephone is in the communication state, and the TV telephone determining means for determining that the TV telephone is in the communication state when the open / close detecting means detects the predetermined open / closed state. And a first mode setting means for setting a hands-free mode in which the transmitted voice is picked up by the microphone and the received voice is pronounced by the speaker, and the open / close detection means detects that the open / closed state is not the predetermined open / closed state. Or the second mode, which is the close-talk mode of the normal voice call in which the transmission voice is picked up by the microphone and the reception voice is sounded by the receiver when it is determined by the TV telephone determination means that the communication state of the TV telephone is not established. The configuration includes setting means.

According to the present invention, the hands-free mode is set when the open / close detecting unit detects that the predetermined open / close state is set and when the TV telephone determining unit determines that the TV telephone is in the communication state. As a result, a hands-free videophone can be realized without carrying a headset.

In order to achieve the above object, the second invention is such that, when the handsfree mode is set by the first mode setting means, the close mode of the normal voice call is set by the second mode setting means. As compared with the case of setting, the configuration further comprises a variable amplification means for amplifying a transmission voice signal obtained by picking up sound by a microphone to a relatively large level. According to the present invention, since the transmitted voice signal can be amplified to a larger level in the hands-free mode than in the close-talk mode of the normal voice call, the transmitted voice can be made highly sensitive.

In order to achieve the above-mentioned object, a third aspect of the present invention is to provide a headset terminal provided on either one of the first housing portion and the second housing portion and to the headset terminal. Headset detection means for detecting the presence / absence of wearing of the headset, and only when the wearing of the headset is detected by the headset detecting means, the microphone of the headset collects the transmitted voice and the receiver of the headset. Further has a third mode setting means for setting a headset mode in which the received voice is produced. In the headset mode, videophone communication is performed when the camera is operating, and normal voice communication is performed when the camera is not operating. Is characterized by.

In order to achieve the above object, a fourth aspect of the present invention is a state change detecting means for detecting a state change of a headset terminal, and the state change detecting means detects that there is a state change, and When the headset detection means detects the wearing of the headset, the fourth mode setting means for setting the headset mode and the state change detection means detect the state change, and the headset detection means detects the head. When the mounting of the set is not detected, the open / close detection unit detects that the set is in the predetermined open / closed state, and the TV phone determination unit determines that the communication is the TV phone, the hands-free mode is set. The fifth mode setting means and the state change detection means detect that there is a state change, and the headset detection means When the mounting of the set is detected, when the open / close detection unit detects that the predetermined open / closed state is not established, or when the TV phone determination unit determines that the TV phone is not in the communication state, a close talk of a normal voice call is performed. The sixth mode setting means for setting the mode is further provided.

According to the present invention, when the state of the headset terminal changes during normal voice communication or videophone communication, it is determined whether the headset is attached or not.
In addition, depending on whether or not it is in a predetermined open / closed state, it is possible to set to a hands-free mode, a normal voice close-talk mode, or a headset mode.

In order to achieve the above object, a fifth aspect of the present invention detects a state change detecting means for detecting a state change of a headset terminal and the presence or absence of a change in the open / closed state detected by the open / close detecting means. The open / closed state change detection means and the state change detection means detect that there is no state change, the open / closed state change detection means detects that there is a change in the open / closed state, and the headset detection means detects the headset. When the wearing is detected, the seventh mode setting means for setting the headset mode and the state change detecting means detect that there is no state change, and the open / close state change detecting means changes the open / closed state. It is detected that the headset is not detected by the headset detection means, and the opening / closing detection means is in a predetermined open / closed state. When it is issued and the videophone determination means determines that the videophone is in the communication state, the eighth mode setting means for setting the handsfree mode and the state change detection means detect that there is no state change. When the open / closed state change detecting means detects that the open / closed state has changed, and the headset detecting means does not detect the wearing of the headset, the open / close detecting means detects that the open / closed state is not the predetermined open / closed state. When or T
When the V telephone determination means determines that the communication state of the TV telephone is not established, the ninth mode setting means for setting the close talk mode of the normal voice call is further provided.

According to the present invention, when it is detected that there is no change in the state of the headset terminal and there is a change in the open / closed state during normal voice communication or videophone communication, whether the headset is attached or not. Depending on whether or not
The hands-free mode, the normal voice close-talk mode, or the headset mode can be set depending on whether or not the predetermined open / close state is set.

Further, in order to achieve the above-mentioned object, a sixth aspect of the invention is that the first casing part is a lower casing part provided with at least an input part and a microphone on the inner side surface thereof, and the second casing part is provided. The section is an upper housing section on which at least a camera, a display section, and a receiver are provided on the inner side surface. One end of each of the lower housing section and the upper housing section is rotatably coupled by a hinge section, and the lower housing section is connected. Any one of a fully closed state in which the inner surfaces of the body and the upper housing face each other in close contact, and a fully open state in which the inner surfaces of the lower housing and the upper housing are separated by a predetermined angle or more. In the foldable mobile phone used in, the open / close detection means determines whether or not a predetermined open / closed state between the fully closed state and the fully opened state is integrated with the rotation of the upper casing part and the lower casing part. The structure is such that it is detected by a mechanical switch in the hinge part that rotates in the direction.

According to the present invention, the hinge portion, which is the greatest feature of the foldable portable telephone, has a built-in mechanical switch for detecting the opening angle (folding angle) between the upper casing portion and the lower casing portion, It is possible to detect whether the mechanism switch is in the fully open state, the fully closed state, or a predetermined open / closed state in between.

In Japanese Patent Laid-Open No. 8-294030 (invention title: "cellular phone integrated video camera"), a video camera section consisting of a lens and an image pickup device in a housing, a video display section, and a mobile phone function are provided. It is disclosed that, in a mobile phone integrated video camera equipped with a mobile phone, when using it as a hands-free phone, the face of the talker can be captured by the camera and monitored by a liquid crystal display.

However, when this is used as a hands-free telephone, the camera housing is rotated so that the camera head is on the same side as the liquid crystal display arranged on the front surface of the housing. In addition to the mechanical realization method of the folding type mobile phone and the sliding type mobile phone, which has become a trend of the mobile phone in recent years, the present invention including the circuit operation has a configuration. Totally different.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 (a) to 1 (c) are perspective views showing an appearance of a mobile phone according to an embodiment of the present invention in various usage states, and a structural explanatory view of a hinge mechanism which is a main part, FIG.
(D) is an external perspective view of a mobile phone according to an embodiment of the present invention when a headset is used.

As shown in FIGS. 1A to 1D, the foldable mobile phone 10 includes an upper casing 11 and a lower casing 1.
5 has a structure in which one end portions of 5 are rotatably coupled by a hinge portion 20. In FIG. 5A, the opening angle between the upper housing portion 11 and the lower housing portion 15 is 170 degrees to 180 degrees. In the fully open state, FIG. 6B shows the state where the opening angle is 90 degrees, and FIG. 7C shows the state in which the opening angle is 0 degrees, that is, the external perspective view of the fully closed state (folded state) and the hinge mechanism 20. Shows the structure of.

The upper housing portion 11 has a camera 12 on its inner surface, which operates during a videophone call, a receiver 13 for outputting the voice of the other party when a close talk (a state in which a user brings his or her ear close) in a normal voice call, and A display unit 14 that performs various displays is provided. In addition, the lower housing portion 15 is provided with a key input portion 16 for inputting various information and a microphone 17 for collecting a user's voice on the inner surface thereof, and
On its side, there is a speaker 18 for outputting the sound of the other party in the ringing upon receiving an incoming call or a hands-free mode for a videophone, and a headset terminal 19 for inserting a headset having an earphone and a microphone. FIG. 1D shows a state in which the headset 40 is connected to the head terminal 19 of the foldable mobile phone 10 in the fully opened state.

Further, as shown in FIGS. 1 (a) to 1 (c),
Inside the hinge portion 20, the first switch movable portion 21 that rotates integrally with the lower housing portion 15 around the shaft 23a.
a and a second switch movable part 21b that rotates integrally with the upper housing 11 around the shaft 23b are arranged so that the shafts 23a and 23b are located on the same straight line, and Metal terminals 22a and 22b are provided on the surfaces of the switch movable portions 21a and 21b that face each other. Metal terminal 22a and metal terminal 22b
Is the switch movable part 21a with respect to the switch movable part 21a.
When b is rotated by 90 degrees, the metal terminals 22a and 22b come into contact with each other as shown in FIG. 1B, and in other fully opened and folded states, as shown in FIG.
It is installed in a non-contact position as shown in (c).

FIG. 2 is a block diagram of a main part of an embodiment of a mobile phone according to the present invention. In the figure, the same components as those in FIG. 1 are designated by the same reference numerals. In FIG. 2, the control unit 201 is connected to each block of the present embodiment via a signal, and comprehensively controls the operation of the present embodiment according to a flowchart described later. The control unit 201 sends an analog signal (audio signal) “RECou” to the receiver 13.
t "is output, and an analog signal (ring tone or voice signal)" SPKout "is output to the speaker 18.

The control unit 201 also controls the pull-up resistor 2
While connected to the power supply Vdd 202 via 03, it is also connected to the switch 204. The control signal “MODE” is input to the control unit 201 by the switch 204 and the pull-up resistor 203. The switch 204 is shown in FIG.
Switch movable part 21a in the hinge part 20 shown in (c)
And 21b and metal terminals 22a and 22b.

Further, in FIG. 2, the microphone 17 is connected to the control unit 201 via the variable amplifier 205.
The variable amplifier 205 is capable of gain control, and the switches 20b and 20 inside the variable amplifier 205 are controlled by the logic of the control signal "GAINsel" output from the control unit 201.
c can be switched and the signal from the microphone 17 is amplified by the amplifier 205a and output, or
It is possible to switch between bypassing a and outputting without amplification. The analog signal (audio signal) output from the variable amplifier 205 is connected to “MICin” of the control unit 201.

Here, the switch 204 detects whether the opening angle between the upper casing 11 and the lower casing 15 shown in FIG. 1 is "90 degrees" or "other than 90 degrees", and " 90 degrees "
When the control signal "MODE" is detected, the control signal "MODE" is output at the L level, and when "other than 90 degrees" is detected.
When the control signal "MODE" is at H level, the control unit 20
1 is a control signal "GAINse" for transmitted voice.
By outputting "1" and selecting the input side of the variable amplifier 205 to be directly connected (through) side, the input audio signal of the microphone 17 is directly input to the control unit 201 (this state is referred to as "speech: microphone normal mode"). "). As for the received voice, "REC" output from the control unit 201.
The "out" signal is supplied to the receiver 13 to output the other party's voice (receive: output by the receiver 13).

When the control signal "MODE" is at the L level, the control unit 201 sets the mobile phone to the hands-free mode in the current communication state of the TV telephone and the control signal "GAINsel" for the transmission voice. Is output, and the variable amplifier 205 selects the side that passes through the amplifier 205a, amplifies the input audio signal of the microphone 17 with the amplifier 205a, and inputs it to the control unit 201 (this state is referred to as “sending: microphone high sensitivity”). "Mode"). Regarding the received voice, “SPKou” output from the control unit 201.
The t "signal is supplied to the speaker 18, and the voice of the other party is sounded from this (receiving: output from the speaker 18). At this time, the microphone 17 of the voice of the own station is in the high sensitivity mode and the voice of the other station is generated. The voice is produced from the speaker 18, and the TV
Since the telephone is in communication, hands-free is possible.

Next, the operation of this embodiment will be described in more detail with reference to the flowchart of FIG. Immediately after an outgoing call or an incoming call is made from the foldable mobile phone 10 (own station side), the place where the communication state has started is started (step 301).

First, the case where the headset is not attached in the communication state of the videophone (image communication + voice communication) in the open state shown in FIGS. 1A and 1B will be described. Since the foldable mobile phone 10 (own station side) has the camera 12, it can be used as a TV phone, and when the partner station side is also equipped with a camera, it can be used as a TV phone.

The control unit 201 determines whether or not the communication state of the TV telephone (image communication + voice communication) is satisfied (step 30).
2). Since the own station has a camera 12, it is possible to make a videophone call. However, if the other party has a camera,
It is determined whether or not the videophone communication is possible and the videophone communication is actually in progress.

In the communication state of the TV phone, the image signal obtained by photographing the face of the user of the mobile phone 10 (own station) with the camera 12 and the transmitted voice of the user are transmitted to the microphone 17 or the headset 40. A transmission voice signal obtained by picking up a sound from a headset microphone is multiplexed and modulated by a radio unit (not shown in FIGS. 1 and 2) into a radio frequency band for transmission, while an image of a face image of the other party is transmitted. The signal and the transmitted voice signal of the other party are received at the local station, demodulated by the wireless unit, the face image of the other party is displayed on the display unit 14, and the transmitted voice of the other party is the received voice. As a signal, it is supplied to the speaker 18 or the headset receiver of the headset 40 to be sounded.

Therefore, when the TV telephone is in the communication state, the control unit 201 uses the camera 12 (ON) (step 303). On the other hand, when the communication state of the TV phone is not established, the control unit 201 sets the camera 12 to the nonuse (OFF) state (step 304). Following the processing of step 303 or 304, the control unit 201 checks whether or not the headset 40 is attached to the headset terminal 19 (step 305). Here, since it is not attached, the control unit 201 determines whether the control signal "MODE" is at the L level or the H level (step 306). As described above, the control signal “MODE” is a detection signal indicating whether or not the opening angle of the foldable mobile phone 10 is “90 degrees”.

In the fully open state shown in FIG. 1A, the metal terminals 22a and 22b inside the hinge portion 20 are in a non-contact state (open) and the switch 204 in FIG. 2 is turned off. Therefore, the control signal “M” of the control unit 201
The power supply voltage from the power supply Vdd202 is supplied to the ODE "input terminal through the pull-up resistor 203, and the control signal"
MODE ″ = H level. As a result, the control unit 20
1 determines that the opening angle is "other than 90 degrees".

In this case, the control unit 201 controls the step 3
Go to 09, switch to the close talk mode of the normal voice call state,
The control signal “GAINsel” output from the control unit 201 is selected so that the input / output of the variable amplifier 205 is directly connected (through), and the input voice signal of the microphone 17 is directly input to the control unit 201 (“Transmission: Microphone”). Normal mode "),
Further, the control unit 201 supplies the reception voice signal “RECout” which is received and demodulated by a radio unit (not shown) and is input to the receiver 13 to perform electro-acoustic conversion to generate a reception voice of the other party (reception: receiver 13 Output).

On the other hand, when it is in the state of being opened 90 degrees as shown in FIG. 1B, the metal terminal 2 inside the hinge portion 20.
2a and the metal terminal 22b are in contact with each other (short circuit), as shown in FIG.
Since the switch 204 is turned on, the control signal “MODE” input terminal of the control unit 201 is connected to the power supply Vdd 202 via the pull-up resistor 203, but is grounded via the switch 204 to control the control unit 201. Signal "M
The voltage of the ODE "input terminal becomes GND level and the control signal" MODE "becomes L level, whereby the control unit 201 determines that the opening angle is" about 90 degrees ".

In this case, the control unit 201 determines whether or not the communication state of the TV phone is set (step 307), and T
If it is not in the V telephone communication state, the close talk mode of the normal voice call in step 309 is set. However, if it is determined that the TV telephone is in the communication state, the process proceeds to step 308 and shifts to the hands-free mode.

In this hands-free mode, the control unit 20
By the control signal "GAINsel" output from 1, the variable amplifier 205 is selected to the side passing through the amplifier 205a,
The input voice signal of the microphone 17 is amplified by the amplifier 205a and input to the control unit 201 ("transmitting: microphone high-sensitivity mode"), and the receiving voice signal "SPKout" of the other party received and demodulated by the wireless unit (not shown). Is supplied to the speaker 18 for acoustic-electric conversion, and the received voice of the other party is sounded from the speaker 18 (receive: output by the speaker 18).

As described above, in the present embodiment, in the hands-free mode, the voice of the local station is in the high sensitivity mode of the microphone 17, the received voice of the remote station is output from the speaker 18, and the communication of the videophone is performed. Since it is in the state, it is possible to perform hands-free operation without performing a troublesome operation only by setting the opening angle to 90 degrees.

Next, the case where the videophone is not in the communication state (normal voice call) will be described. In this case, the control unit 20
1 is not in the communication state of the videophone (step 30)
2) After the camera 12 is not used (OFF) (step 304), the headset 40 is connected to the headset terminal 19.
Check if is installed (step 30)
5).

As shown in FIG. 1D, when the headset 40 is connected to the headset terminal 19, the headset mode is set, and the transmitted voice is input from the microphone part of the headset 40 and received. The sound is output from the headset receiver (earphone) of the headset 40 (step 310).

The headset 40 has the headset terminal 19
If not connected to the control signal 201,
It is detected whether the ODE "is at the H level or the L level (step 306). If" MODE "= L level, the process proceeds to step 307, but since the communication state of the TV telephone is not established, the process proceeds to step 309. "MODE" = H
Also in the case of the level, the process proceeds to step 309. That is, when the headset is not used, the process proceeds to step 309 regardless of the logic of the control signal "MODE".

In step 309, the above-mentioned normal voice call state is switched to the close talk mode, and the control signal "GAINsel" output from the control unit 201 is selected to directly connect (through) the input / output of the variable amplifier 205. , Microphone 1
The input voice signal of No. 7 is input to the control unit 201 as it is (“transmission: microphone normal mode”).
The received voice signal "RECout", which is received and demodulated by a radio unit (not shown), is supplied to the receiver 13 for electrical-acoustic conversion, and the received voice of the other party is generated (received: output by the receiver 13).

In the folded state (angle = 0 degree) shown in FIG. 1 (c), the metal terminals 22a and 22b inside the hinge portion 20 are in a non-contact state (open), and the state shown in FIG. Since the switch 204 is turned off, the control unit 2
The control signal “MODE” input terminal 01 is supplied with the power supply voltage from the power supply Vdd 202 via the pull-up resistor 203, and the control signal “MODE” = H level. As a result, the control unit 201 causes the opening angle to be "other than 90 degrees".
To judge.

In this case, the control unit 201 enters the headset mode when the headset 40 is connected to the headset terminal 19, but when the headset 40 is not connected to the headset terminal 19. The process proceeds to step 309, and the close-talking mode described above is entered. However, in reality, in the folded state (fully closed state) shown in FIG. 1C, the process of step 309 is performed, but since the folded state (fully closed state), the user does not use the microphone 17
Also, the receiver 13 cannot be used substantially (it may not be used in this state. A user who wants to make a voice call using the microphone 17 and the receiver 13 folds the foldable mobile phone 10 (fully closed). State) never, if the user is in this state, it is by the intention of the user.).

The switch 204 inside the hinge 20
1 (a) to 1 (c) so that the three states shown in FIG. 1 (a) can be identified, or a switch for opening / closing detection is separately provided, and the folded state shown in FIG. )
The process of step 309 may not be performed when is detected.

Next, the operation of the present embodiment when the headset 40 is attached or detached during normal voice communication or videophone communication will be described with reference to the flowcharts of FIGS. 4 and 5. First, the headset 40 is connected to the headset terminal 19 during the normal voice call in the close-talking mode described above.
The case of insertion into The control unit 201 checks whether or not the headset 40 is connected to the headset terminal 19 and the state change of the headset terminal 19 (step 402). In this case, since there is a state change, the control unit 201 determines whether or not the headset 40 is currently mounted (step 403), determines that the headset 40 is currently mounted, and determines that the mobile phone 10 is currently mounted. The headset mode is set (step 410). In the headset mode, the transmitted voice is input from the microphone section of the headset 40, and the received voice is output from the receiver (earphone) of the headset of the headset 40.

Next, the case where the headset 40 is removed from the headset terminal 19 during the voice communication in the headset mode will be described. In this case, the state change of the headset terminal is judged (step 402), and since there is a change, the process proceeds to step 403. Since the headset is not currently mounted in step 403, the control unit 201 detects whether the control signal "MODE" is at the H level or the L level (step 404), and if "MODE" = L level, the TV is set.
It is determined whether or not the telephone is in communication (step 405).

Here, since the voice call is in progress and the videophone is not in the communication state, the control unit 201 turns off the camera 12 (step 407) and then sets the close-talk mode as described above, and the transmission voice is the microphone normal mode. The received voice is output by the receiver 13 (step 409). Also, when it is determined in step 404 that "MODE" = H level, the camera is immediately turned off in step 407, and then the process proceeds to step 409 to set the close-talk mode.

Next, a case will be described in which the headset 40 is detached from the headset terminal 19 at the same time as the voice call in the headset mode, and a videophone call is performed with the opening angle being 90 degrees. In this case, the control unit 201
Determine the change in the status of the headset terminal (step 40
2), since there is a change, go to step 403. Since the headset is not currently mounted in step 403, the control unit 201 detects whether the control signal "MODE" is at the H level or the L level (step 404).

Here, since the opening angle is 90 degrees,
Since the control signal “MODE” of L level is input to the control unit 201, it is determined to be L level in step 404, and then it is determined whether or not the communication state of the TV phone is set (step 40).
5). Here, since the communication state of the TV phone is set, the control unit 201 turns on the camera 12 (step 40).
6) The mobile phone 10 is set to the hands-free mode, the transmission voice is set to the microphone high sensitivity mode, and the reception voice is set to the speaker 1.
8 is pronounced (step 408).

Next, the operation when the opening angle is opened from 90 degrees to 180 degrees during the hands-free mode TV telephone communication will be described. In this case, the control unit 201 determines the state change of the headset terminal (step 40).
2) Since there is no change, go to step 411 in FIG. At step 411, the control signal "MODE" is at H level or L
It detects whether it is a level.

Here, since the opening angle is opened from 90 degrees to 180 degrees, the control signal "MODE" changes from L level to H level.
Since the level has changed, the control unit 201 determines that “the state has changed”, and then determines whether or not the current headset 40 is attached to the headset terminal 19 (step 412 in FIG. 5). ), If it is attached, the mode is set to "headset mode" (step 419 in FIG. 5), and if it is not attached, the current state of the control signal "MODE" is determined (step 413 in FIG. 5).

Here, since the opening angle is 180 degrees, the control unit 201 determines that the control signal "MODE" is at the H level and turns off the camera 12 (step 4 in FIG. 5).
16) Set the close-talk mode and use the microphone normal mode for the transmitted voice.
The received voice and the received voice are output by the receiver 13 (step 418 in FIG. 5).

If the headset 40 is not attached or detached and there is no change in the state of the opening angle, steps 402 and 42.
0, the process proceeds to step 411, and ends only by performing the determination process (communication state switching operation, camera 12 on / off, audio bus switching, etc. are not performed). If the user does not wear the headset 40 and makes a videophone call while maintaining the opening angle of 90 degrees, step 402,
Proceeding to step 417 via 411 to 415, the voice transmission in the hands-free mode is set to the microphone high-sensitivity mode,
The received voice can be sounded from the speaker 18 to make a videophone call.

Next, another embodiment of the present invention will be described. FIG. 6 shows a block diagram of a main part of another embodiment of a mobile phone according to the present invention. In the figure, the same components as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 6, the present embodiment is characterized in that the switch 204 is grounded via the pull-down resistor 206 and is connected to the control signal “MODE” input terminal of the control unit 201.

As a result, as in the fully opened state or the folded state (fully closed state) shown in FIGS. 1 (a) and 1 (c),
Metal terminal 22a and metal terminal 22b are in non-contact state (open)
6, the switch 204 is turned off in FIG. 6, and the control signal “MODE” input terminal is pulled down by the pull-down resistor 2
Since it is grounded via 06, the GND potential is a control signal "
MODE becomes “MODE” = L level. At this time, the control unit 201 determines that the opening angle is “other than 90 degrees”.

On the other hand, when the metal terminals 22a and 22b are in contact with each other (short circuit) like the opening angle of 90 degrees shown in FIG. 1B, the switch 20 shown in FIG.
4 is turned on, and the control signal "MODE" input terminal is connected to the power supply Vdd202 via the switch 204, so that the control signal "MODE" becomes the voltage of Vdd and "M".
ODE ”= H level. At this time, the control unit 201 determines that the opening angle is“ other than 90 degrees ”.

FIG. 7 is a flow chart for explaining the operation of another embodiment of the present invention shown in FIG. 7, those processing steps that are the same as those corresponding processing steps in FIG. 3 are designated by the same reference numerals, and a description thereof will be omitted. In FIG. 7, in step 312, “MO
When DE "= L level, the process proceeds to step 309 and" M
When ODE "= H level, the process proceeds to step 307. That is, in the present embodiment, the logic of the control signal" MODE "is inverted as compared with the previous embodiments shown in FIGS. The only difference is that for other behaviors,
It is similar to the previous embodiment. Therefore, similarly to the previous embodiments, this embodiment also has an effect that the hands-free operation can be used without performing a troublesome operation when the videophone is in the communication state.

The present invention is not limited to the foldable portable telephones of the above-described embodiments, and for example, the first casing portion having at least the key input portion and the transmitter (microphone) on the upper surface thereof. Is inserted into the bottom surface or inside of the second housing portion having at least a camera, a display portion, and a receiver on the top surface to cover the key input portion, or is pulled out to the outside of the display housing portion. The present invention is also applicable to a slide type mobile phone that is used in any of the fully open states in which the key input unit is exposed and can be used.

In this case, the operation casing is in the process of being completely pulled out from the display casing (between the fully closed state and the fully opened state).
A mechanical switch that is turned on (or off) only at a certain slide position and turned off (or on) at any other slide position is provided, and the control signal described above corresponding to the on / off of the mechanical switch is provided. "MODE" is H
It may be a level or an L level.

Although the speaker 18 and the handset terminal 19 are provided in the lower casing 15 in the embodiment shown in FIG. 1, they may be provided in the upper casing 11, or one of them may be provided in the upper casing. 11 and the other may be provided in the lower housing portion 15. Further, the headset terminal 19 may not be provided (in this case, the headset mode cannot be performed).

Further, the variable amplifier 205 is the amplifier 205
It is a configuration for selecting amplification or non-amplification in a. However, it is not limited to this, and the gain when the handsfree mode is set is larger than the gain when the close talk mode of the normal voice call is set. A variable gain amplifier that is controlled so that when the hands-free mode is set, the transmission obtained by picking up the sound by the microphone 17 is more important than when the close-talk mode of a normal voice call is set. Any configuration may be used as long as the audio signal is amplified to a relatively large level.

[0062]

As described above, according to the present invention,
Since the hands-free mode is set when the open / close detection unit detects that the predetermined open / closed state and the TV phone determination unit determines that the communication is in the TV phone communication state. Without having to carry
Also, a hands-free videophone can be realized without any troublesome operation.

Further, according to the present invention, in the hands-free mode, the transmitted voice signal is amplified to a level higher than that in the close-talk mode of the normal voice communication, so that the transmitted voice has a high sensitivity. It is possible to realize a hands-free mode with almost no quality deterioration.

Further, according to the present invention, only when the headset is attached to the headset terminal, the microphone of the headset collects the transmitted voice and the receiver of the headset emits the received voice. In addition to the set mode, it is possible to perform videophone communication when the camera is operating and to make a normal voice call when the camera is not operating.

[Brief description of drawings]

FIG. 1 is an external perspective view in each usage state of an embodiment of the present invention and a structural explanatory view of a hinge mechanism which is a main part.

FIG. 2 is a block diagram of a main part of an embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of FIGS. 1 and 2.

FIG. 4 is a flowchart for explaining a detection operation of a state change due to attachment / detachment of a headset and a state change of a hinge part during normal voice call and videophone communication of the present invention (part 1).

FIG. 5 is a flowchart for explaining the detection operation of the state change due to the attachment / detachment of the headset and the state change of the hinge portion during the normal voice call and the communication of the videophone according to the present invention (No. 2).

FIG. 6 is a block diagram of a main part of another embodiment of the present invention.

7 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

10 Foldable mobile phone 11 Upper case part 12 cameras 13 receiver 14 Display 15 Lower housing 16 key input section 17 Mike 18 speakers 19 Headset terminal 20 Hinge part 21a, 21b Switch movable part 22a, 22b Metal terminals 23a, 23b axis 40 headset 201 control unit 202 power supply Vdd 203 pull-up resistor 204 switch 205 variable amplifier 206 pull-down resistor

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5C064 AA01 AB04 AC04 AC06 AC12                       AC16 AD08                 5K023 AA07 BB11 BB18 DD08                 5K027 AA11 BB02 DD16 HH04                 5K101 KK04 LL12

Claims (6)

[Claims] 1. A first device having at least an input unit and a microphone.
And a second housing portion including at least a camera, a display portion, and a receiver are relatively movably coupled to each other, and the first and second housing portions are relatively movable, Any one of a fully closed state in which the input unit is completely covered by the second housing unit and a fully open state in which the input unit is exposed from the second housing unit and is usable. In a mobile phone used in a state, a speaker for ringing a ringing sound, which is provided in one of the first casing part and the second casing part, and which has a fully closed state and a fully opened state. In the meantime, an opening / closing detection means for detecting whether it is in a predetermined opening / closing state, and transmitting an image signal of the user by operating the camera and displaying the received image of the other party on the display unit. TV to judge whether it is the communication status of the videophone
When the telephone open / close detecting means and the open / close detecting means detect the predetermined open / closed state, and when the TV phone determining means detects T
When it is determined that the V-phone is in the communication state, the hands-free mode in which the transmitted voice is collected by the microphone and the received voice is generated by the speaker is set.
When the mode setting means and the opening / closing detection means detect that the predetermined open / closed state is not established, or when the TV phone determination means determines that the TV phone is not in a communication state, the microphone transmits the transmitted voice. A mobile phone comprising: a second mode setting unit that sets a close-talk mode of a normal voice call in which a received voice is sounded by the receiver while sounding. 2. When the hands-free mode is set by the first mode setting means, the microphone is used by the microphone more than when the close talk mode of the normal voice call is set by the second mode setting means. 2. The mobile phone according to claim 1, further comprising variable amplification means for amplifying a transmitted voice signal obtained by collecting sound to a relatively large level. 3. A headset terminal provided on one of the first housing portion and the second housing portion, and a headset for detecting whether or not a headset is attached to the headset terminal. A detection unit and a head that picks up a transmission voice by a microphone of the headset and produces a reception voice by a receiver of the headset only when the wearing of the headset is detected by the headset detection unit. A third mode setting means for setting a set mode is further provided, and in the headset mode, videophone communication is performed when the camera is operating, and normal voice communication is performed when the camera is not operating. The mobile phone according to claim 1. 4. A state change detecting means for detecting a state change of the headset terminal, the state change detecting means detects that there is a state change, and the headset detecting means attaches the headset. When detected, the fourth mode setting means for setting the headset mode and the state change detecting means detect that there is a state change, and the headset detecting means detects the wearing of the headset. If not, and if the open / close detection means detects the predetermined open / closed state and the videophone determination means determines that the videophone is in the communication state, the handsfree mode is set. Of the mode setting means and the state change detecting means detect that there is a state change, and When the wearing of the headset is detected, when the open / close detection unit detects that the predetermined open / closed state is not established, or when the TV phone determination unit determines that the TV phone is not in the communication state, 4. The mobile phone according to claim 3, further comprising sixth mode setting means for setting the close talk mode of the normal voice call. 5. A state change detecting means for detecting a state change of the headset terminal, an open / close state change detecting means for detecting whether or not there is a change in the open / close state detected by the open / close detecting means, and the state change detecting means. Detects that there is no state change, the open / closed state change detection means detects a change in the open / closed state, and the headset detection means detects mounting of the headset, Headset mode 7th
Of the mode setting means and the state change detecting means detect that there is no state change, the open / close state change detecting means detects that there is a change in the open / closed state, and the headset detecting means When the wearing of the headset is not detected, the opening / closing detecting means detects the predetermined opening / closing state, and the TV telephone determining means determines that the TV telephone is in the communication state, Eighth mode setting means for the hands-free mode, the state change detecting means detects that there is no state change, and the open / close state change detecting means detects that there is a change in the open / closed state, and When the wearing of the headset is not detected by the headset detection means, the opening / closing detection means does not indicate the predetermined open / closed state. When it is detected or when it is determined by the TV telephone determination means that the communication state of the TV telephone is not established, a ninth mode setting means for setting the close talk mode of the normal voice call is further provided. The mobile phone according to item 3 or 4. 6. The first housing portion is a lower housing portion on which at least the input portion and the microphone are provided on an inner surface, and the second housing portion is formed on at least the camera and the microphone on an inner surface. An upper housing portion provided with a display portion and the receiver, one end portion of each of the lower housing portion and the upper housing portion being rotatably coupled by a hinge portion, and the lower housing portion and the upper housing portion. It is used in either one of a fully closed state in which the inner side surfaces of the body part are in close contact with each other and a fully open state in which the inner side surfaces of the lower housing part and the upper housing part are separated by a predetermined angle or more. In the foldable mobile phone, the open / close detection means determines whether or not a predetermined open / closed state between the fully closed state and the fully opened state is integrated with the rotation of the upper casing part and the lower casing part. The structure is such that it is detected by a mechanical switch in the hinge section that rotates in a mechanical manner. The mobile phone according to claim 1, wherein the mobile phone is a mobile phone.