JP4068550B2 - Portable wireless phone - Google Patents

Description

  The present invention relates to a portable radio telephone, and more particularly to a portable radio telephone having a function of enabling voice input / output from both the front and rear surfaces of the telephone and enabling two people to talk with each other using both sides.

  Conventionally, this type of wireless mobile phone has been configured and handled as a one-to-one call between callers. It is also possible to talk with an unspecified number of people by using a speaker on the receiving side and increasing the sensitivity of the microphone on the transmitting side. In this case, there is an advantage that the caller can talk hands-free without having a handset, and can move freely within a range where the microphone can collect sound.

  In addition, there is a “phone microphone for a mobile phone that can be used for an interpreter system and a translation system” disclosed in Patent Document 1 as a system that intervenes an interpreter when words cannot be communicated between parties. FIG. 6 is a diagram showing an example of use of the cellular phone phone microphone.

This uses a branching phone microphone F having a plurality of phone microphones 65 that can listen to the received voice of the mobile phone 61 from the listening unit 63 and utter the voice from the microphone unit 64 through the mobile phone 61. . A branch phone microphone F is connected to the connection portion 62 of the mobile phone 61 so that a call can be made with the interpreter A via the mobile phone 61, and one phone microphone 65A of the branch phone microphone F needs to be translated. The person B is attached to the interpreter C who receives the interpretation of the other phone microphone 65B, and the mobile phone 61 allows the three persons A, B, and C to talk at the same time.
Japanese Patent Laid-Open No. 10-32893

  However, the above-described method of making a call with an unspecified number of hands-free mobile phones needs to increase the sound collection sensitivity of the microphone, and is inevitably weak against noise. Moreover, since the speaker unit is also suitable for an unspecified number of people, it is unsuitable when only two people who need to protect privacy are used together.

  On the other hand, the above-mentioned “phone microphone for a mobile phone that can be used for an interpreting system and a translation system” makes a call by connecting the branching phone microphone F to the connection unit 62 of the mobile phone 61. It is necessary to always carry F. Moreover, the wire of the branch type phone microphone F at the time of use is also troublesome. In addition, since multiple phone microphones are used, it may be necessary to adjust the microphone sensitivity, and the function to operate the microphone sensitivity is not a function provided in all mobile phones, so there is a problem that it is not versatile. there were.

  The present invention has been made in view of the above points, and is provided with a function that allows voice input / output from both the front and back surfaces of a portable wireless telephone so that two persons can talk together with each other. An object is to provide a wireless telephone.

In order to solve the above-mentioned problem, the invention described in claim 1 comprises one fixed part and two movable parts, and the movable parts are respectively provided on the front side and the back side of the lower end of the fixed part. Through the hinge mechanism, it is attached so as to be able to be bent in the shape of "<" in opposite directions, and a speaker that outputs a reception sound is attached to both the front surface and the back surface of the fixed portion, and each of the two movable portions is attached. a microphone for inputting a transmission sound attached to the well as configured to engage the party via both microphone and both speakers, dial keys perform dial operation on a front surface of the fixing portion, the operation display and information display indicator, and a changeover switch is provided, said switching the said speaker microphone mounted to the movable portion attached to the rear surface side of the lower end portion of the speaker and the fixed portion attached to the rear surface of the fixed portion and the microphone by the operation of the switch In mobile radio telephone, characterized by being configured so that it can be disconnected from the driving circuit for driving.

According to the first aspect of the present invention, the two movable parts are attached to the front side and the back side of the lower end part of the fixed part, respectively, via the hinge mechanism so as to be able to be bent in the shape of "<". The speaker that outputs the reception sound is attached to both the front and back of the fixed part, the microphone that inputs the transmission sound is attached to each of the two movable parts, and the other party communicates via both microphones and both speakers. Since it is configured so that the microphone can be brought close to the user's mouth and the sound collecting effect is improved, two people can talk together with the other party, and the usability is improved . In addition, the speaker mounted on the back surface of the fixed portion and the microphone mounted on the movable portion attached to the back surface of the lower end portion of the fixed portion are disconnected from the driving circuit for driving the speaker and the microphone by operating the changeover switch provided on the fixed portion. since it is configured to be able to release, an effect that a speaker and microphone mounted on the back surface side can be used like a conventional mobile phone is inoperative can be obtained.

  Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are views showing the appearance of a portable radio telephone according to the present invention. FIG. 1 (a) is a diagram showing a front surface, FIG. 1 (b) is a diagram showing a back surface, and FIG. b) is a view showing a side surface. As shown in the figure, the mobile radio telephone 1 according to the present invention includes a fixed portion 10 and two movable portions 11 and 11 positioned below the fixed portion 10. The movable portions 11 and 11 are bent in directions opposite to each other around the hinge mechanism.

  A speaker 2, a display 6, a function key 7, and a dial key 8 are arranged and mounted on the front surface (front surface) of the fixed portion 10, and a transmission / reception antenna 9 is mounted on the top. In addition, the speaker 3 is disposed and mounted on the back surface of the fixed portion 10. A microphone 4 is disposed and mounted on the front surface of the movable unit 11 on the front surface side. A microphone 5 is disposed and mounted on the front surface portion of the movable portion 11 on the back surface side.

  The speaker 2 converts the received signal into sound and outputs it. The display 6 performs operation display and information display at the time of transmission / reception, the function key 7 is a key such as a changeover switch 7-1 of the speaker 3 and the microphone 5, a mode switching key, and the dial key 8 is a key for performing a dial operation. is there.

  The speaker 3 and the microphone 5 can be turned on / off by a changeover switch 7-1 as will be described in detail later. Further, as shown in FIG. 2 (b), the movable parts 11 and 11 are bent into a "<" shape in opposite directions around the hinge mechanisms 12 and 12, and the microphone 4 is moved to the user's mouth on the front side. The microphone 5 can be brought close to the user's mouth on the back side to increase the sound collecting effect.

  FIG. 3 is a diagram showing a circuit configuration of the voice input unit of the portable radio telephone 1. As shown in the figure, the speaker 2, the speaker 3, the microphone 4, and the microphone 5 of the voice input unit are connected to the communication unit 21 and the control unit 20 via the calling LSI 22.

The received signal is amplified by the amplifier 22-3 from the communication unit 21 and output to the speaker 2, and the voice input signal input from the microphone 4 is amplified by the amplifier 22-5 and transmitted to the communication unit 21. The received signal is amplified from the communication unit 21 through the switch 22-1 by the amplifier 22-4 and output to the speaker 3. The audio input signal input from the microphone 5 is amplified by the amplifier 22-6 and transmitted to the communication unit 21 via the switch 22-2. The on / off control of the switch 22-1 and the switch 22-2 is operated from the changeover switch 7-1 via the control unit 20.

  As described above, according to the mobile radio telephone 1 having the above configuration, the speakers 2 and 3 are disposed and mounted on the front and back surfaces of the fixed portion 10, and the microphone 4 is disposed and mounted on the front surface of the movable portion 11 on the front surface side. Since the microphone 5 is arranged and mounted on the front surface of the movable portion 11 on the side, it is possible to talk with the other party together from two sides. Further, by providing the movable part 11 with the microphone 4 and the microphone 5, the sound collecting effect is increased and the usability is improved. Further, when used alone, the back switch 3 and the microphone 5 are turned off by the changeover switch 7-1, so that it can be used in a noisy place in the same manner as a conventional portable radio telephone.

  FIG. 4 is a side view showing another appearance of the portable radio telephone 1 according to the present invention. As shown in the figure, in the portable radio telephone 1, an appropriate speaker 3 and microphone 5 are provided on the back surface, and a shielding plate 30 that shields the front surface of the speaker 3 and microphone 5 is rotatably provided by a hinge mechanism 31. Yes. Thereby, when the portable radio telephone 1 is used alone, the reception sound is output from the back surface or noise is input to the microphone 5 by covering the front surfaces of the speaker 3 and the microphone 5 with the shielding plate 30. There is no.

  Further, in the mobile radio telephone 1 shown in FIG. 4, an audio hole is provided on the back surface of the mobile radio telephone 1 in place of the speaker 3 and the microphone 5, and the speaker 2 and the microphone 4 mounted on the front surface through the audio hole from the back surface are shared. By doing so, it is possible to easily and inexpensively realize a portable radio telephone having a function capable of making a call from both sides.

  FIG. 5 is a diagram showing another appearance of the portable radio telephone according to the present invention. FIG. 5 (a) shows a state in which the sound hole is closed by the shielding plate, and FIG. 5 (b) shows the sound hole by shifting the shielding plate. Shows the exposed state. As shown in the figure, a slidable shielding plate 41 is provided on the back surface of the portable radio telephone 1 so that the front surface of the speaker 3 and the microphone 5 mounted on the back surface can be covered or opened by the shielding plate 41. Yes.

  A claw member 42 is attached to the back surface of the mobile radio telephone 1 so as to be rotatable about a fulcrum shaft 45, and the tip of the claw member 42 is inserted into a locking hole 43 provided in the shielding plate 41. And is always urged to press the back surface of the portable radio telephone 1 with a spring (not shown) or the like. A pressing member 47 projects from one side of the shielding plate 41, and the shielding plate 41 is biased by a coil spring 44 so as to slide in a direction to open the front surfaces of the speaker 3 and the microphone 5.

  When the front surfaces of the speaker 3 and the microphone 5 are covered with the shielding plate 41, the shielding plate 41 slides against the pulling force of the coil spring 44 by pressing the pressing member 47 against the speaker 3 and the microphone 5, and the shielding plate 41 is moved. The front end of the claw member 42 is inserted into the locking hole 43 in a state where the front surface of the speaker 3 and the microphone 5 is slid by a predetermined amount, and the shielding plate 41 is connected to the speaker 3 and the microphone as shown in FIG. Locked with the front of 5 closed. In order to open the front surfaces of the speaker 3 and the microphone 5, the rear end of the claw member 42 is released from the locking hole 43 by pressing the rear end of the claw member 42, and the shielding plate 41 is pulled by the coil spring 44 and slides. Then, the front surfaces of the speaker 3 and the microphone 5 are opened as shown in FIG.

  When the mobile radio telephone 1 has the configuration shown in FIG. 5, the same effects as the mobile radio telephone having the configuration shown in FIG. 4 can be obtained. If a voice hole is provided on the back side of the portable wireless telephone 1 in place of the speaker 3 and the microphone 5 and the speaker 2 and the microphone 4 mounted on the front side are shared through the voice hole from the back side, a function can be used from both sides. A portable wireless telephone can be easily realized at a low price.

  As described above, according to the embodiment of the present invention, since two persons can talk with each other from the front and back of the telephone, it is necessary to adjust the reception and transmission levels as in the conventional hands-free system. In addition, it can be used in a noisy place in the city like a conventional mobile phone. Moreover, the troublesomeness of connecting a conventional branch phone microphone is eliminated.

FIG. 1A is a front view and FIG. 1B is a rear view of an external appearance of a portable radio telephone according to the present invention. FIG. 2A is a side view showing a state in which a movable part is closed, and FIG. 2B is a side view showing a state in which the movable part is opened. It is a circuit diagram of the audio | voice input part of the portable radio telephone concerning this invention. It is a side view which shows the external appearance of the portable radio telephone concerning this invention. FIGS. 5A and 5B are views showing the appearance of a portable radio telephone according to the present invention, FIG. 5A is a back view showing a state in which the front surface of the speaker and the mask is covered with a shielding plate, and FIG. FIG. It is a figure which shows the usage example of the conventional phone microphone for mobile phones.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile radio telephone 2 Speaker 3 Speaker 4 Microphone 5 Microphone 6 Display 7 Function key 8 Dial key 9 Antenna 10 Fixed part 11 Movable part 20 Control part 21 Communication part 22 Communication LSI
30 shielding plate 31 hinge mechanism 41 shielding plate 42 claw member 43 locking hole 44 coil spring 45 fulcrum shaft 47 pressing member

Claims (1)

It has one fixed part and two movable parts, and each of the movable parts has a "<" shape in the opposite direction to each other via a hinge mechanism on the front and back sides of the lower end of the fixed part. A speaker that is attached to bendable and that outputs a reception sound is mounted on both the front surface and the back surface of the fixed portion, and a microphone that inputs a transmission sound is mounted on each of the two movable portions. together through the two speaker configured to allow voice communication with the other party, dial keys perform dial operation in front of the fixed portion, a display unit for the operation display and the information display, and a changeover switch is provided, by the operation of said switching switch as a microphone mounted to the movable portion attached to the rear surface side of the lower end portion of the speaker and the fixed portion attached to the rear surface of the fixing part can be disconnected from the driving circuit for driving the loudspeaker and the microphone Portable radio telephone, characterized in that form.

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