JP2009159447A - Cap with bone conduction speaker and wireless communication system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap with a bone conduction speaker making music reproduction and speech communication compatible without damaging design and enabling the cap side to perform a variety of operation including switches between the music reproduction and the communication over the phone. <P>SOLUTION: The cap 1 is provided with: a cap 1 with a collar which has a plurality of pockets 7 and 8 provided outside at the back of or inside of a cap body 2 covering a head part; a communication-control unit 10 which is stored in any of the pockets, establishes wireless communication with external equipment to receive a music signal, or to send and receive a speech communication signal; bone conduction speakers 12 and 13 which are fitted inside the cap body 2, convert the music signal or the speech communication signal output from the communication-control unit into acoustic vibration and directly communicate it to a head part of a cap wearer; an operation part 14 which is fitted to a lower surface of a collar 3 and receives a switch instruction and the like for switching reception of the music signal and transmission/reception of the speech communication signal with respect to the communication-control unit; and a microphone 15 which is fitted to the lower surface of the collar 3 and collects sounds. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bone conduction speaker cap provided with a bone conduction speaker in a cap body, and a wireless communication system capable of playing music and talking using the cap.

  Conventionally, a headband and a cap with a built-in handset that uses bone conduction are known (see, for example, Patent Document 1).

  The headband is composed of a thin and long elastic plate-like body formed in an arc shape along the shape of the head, and presses the both ends of the plate-like body in the longitudinal direction against the head surface. A bone conduction speaker that outputs an input signal as an audio signal is attached to at least one of the portions. Furthermore, a microphone and a transmitter for collecting sound are attached to the central portion of the elastic plate-like body.

  On the other hand, in the cap, a microphone that collects sound is attached to the front lower surface of the heel, and the bone conduction speaker that outputs the input signal as a sound signal to the lower edges of both sides of the cap body covering the head. Is mounted in contact with the side surface of the head.

In addition, a unitized transmitter and a power source are attached to the rear edge of the lower edge of the cap body.
JP 2006-229373 A

  However, since the above-described conventional headband using bone conduction is a headband type that uses an elastic plate-like body formed in an arc shape on the head, it is difficult to say that it can be used regardless of gender. Moreover, since the shape is special, it is unsuitable at the time of exercise | movement, and there exists a fault that wearing is conspicuous.

  On the other hand, in a cap using bone conduction, since a bone conduction speaker, a microphone, or the like is attached to the cap, it can be worn without a sense of incompatibility compared to the headband. Moreover, even if it is applied to a golf cap for sports, for example, there is no unnaturalness and there is an advantage that it can be used regardless of gender.

  However, when the above-described cap using bone conduction is used not only for calls but for various purposes, specifically, in order to be able to listen to music other than calls, a sound source such as a CD or MD is used as a cap. There is a problem that not only the cap becomes heavier but also the design is degraded.

  The present invention has been made in consideration of the problems in the conventional bone conduction headband and cap as described above, and can achieve both music playback and telephone conversation without impairing the design, and music on the cap side. A cap with a bone conduction speaker and a wireless communication system capable of performing various operations including switching between reproduction and call are provided.

  The bone conduction speaker cap according to the present invention includes a cap with a hook provided with a plurality of pockets on the rear outer surface or inner surface of the cap body that covers the head, and is stored in one of the pockets, A communication / control unit that establishes wireless communication to receive music signals or sends / receives call signals, and is attached to the inner surface of the cap body, and the music signals or call signals output from the communication / control units are acoustically vibrated. The bone conduction speaker that is directly transmitted to the head of the cap wearer with the heel and is attached to the lower surface of the heel and switches between reception of music signals and transmission / reception of call signals to the communication / control unit. An operation unit for inputting a switching instruction and the like, and a microphone that is attached to the lower surface of the bag and collects sound are provided.

  The cap with a hook in the present invention indicates a cap in which a eave (projection) protrudes from the front side of the cap body covering the head, as represented by a baseball cap.

  In the present invention, the music signal means a signal recording music, and the call signal means a signal including a voice signal at the time of a call, a call signal before a call is established, a busy signal, and the like.

  In the bone conduction speaker cap, the pocket is preferably made of a mesh material. Thereby, the heat generated by the device stored in the pocket can be effectively dissipated.

  In addition, if an amplifier with a power supply is interposed between the communication / control unit and the bone conduction speaker, and the pocket is stored in a pocket different from the pocket in which the communication / control unit is stored, the bone conduction speaker is desired. It is possible to vibrate at a sound volume of 5 and a weight balance in the cap body can be achieved.

  Further, it is preferable that the operation unit and the microphone are assembled and integrated on a sheet-like support and are detachably mounted on the bottom surface of the tip of the bag. If the operation unit is arranged on the lower surface of the bag, it is possible to perform centralized operations on the cap side for music playback and call operations.

  In addition, if the opening is formed opposite to the sliding portion provided around the hem of the cap body and the vibration surface of the bone conduction speaker is exposed from each opening, the acoustic vibration of the bone conduction speaker is obtained. Can be effectively transmitted to the cap wearer's head.

  The wireless communication system of the present invention can be composed of the bone conduction speaker cap having the above configuration and a mobile phone having a music playback function as the external device.

  As a mobile phone in the wireless communication system, a Bluetooth (registered trademark) compatible mobile phone can be used. Bluetooth may be built in a mobile phone, or a dedicated adapter may be connected to the mobile phone to perform wireless communication with Bluetooth from the communication / control unit.

  According to the bone conduction speaker cap and the wireless communication system using the same according to the present invention, it is possible to achieve both music reproduction and telephone conversation without impairing design, and the cap side can switch between music reproduction and telephone conversation. It has an advantage that various operations can be performed.

  Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

  FIG. 1 shows an embodiment of a bone conduction speaker cap according to the present invention, wherein (a) is a left side view, (b) is a rear view, and (c) is a bottom view.

  In these drawings, a bone conduction speaker cap (hereinafter abbreviated as “cap”) 1 has a hemispherical cap body 2 and a collar 3 extending from the front side of the bottom of the cap body 2. A notch 4 is formed at the rear of the main body 2.

  An adjustment belt 5 is provided so as to connect both lower ends of the cutout portion 4, and the cap 1 is fitted to the head by adjusting the folding length L of the adjustment belt 5 from the buckle 6. Can be done.

  A pair of pockets 7 and 8 are provided side by side on the outer surface of the rear portion of the cap 1. One pocket 7 houses a small amplifier unit 9 having a power supply, and the other pocket 8 has communication and control. A Bluetooth unit 10 as a unit is stored. The pockets 7 and 8 can also be provided on the inner surface of the rear portion of the cap 1.

  The small amplifier unit 9 is driven by using a button battery as a power source. For example, model number CR2032 manufactured by Matsushita Electric Industrial Co., Ltd. can be used.

  The Bluetooth unit 10 is composed of a type wirelessly connected to a Bluetooth-equipped mobile phone and a microcomputer chip for controlling signals, and operates with a lithium polymer rechargeable battery (3.7 V, 230 mAH). It has become.

  The pockets 7 and 8 are made of a mesh material and can dissipate heat generated from the equipment stored in the pocket.

  Opening portions 11a and 11b are formed at positions facing the left and right direction in the belt-like slip portion 11 provided in an annular shape inside the skirt portion of the cap body 2, and the bone for the right channel is formed from the opening portion 11a. The vibration surface of the conduction speaker 12 is exposed, and the vibration surface of the bone conduction speaker 13 for the left channel is exposed from the opening 11b.

  The names of the right channel and the left channel are described based on the wearer of the cap 1.

  The bone conduction speakers 12 and 13 are composed of laminated piezoelectric actuators in which thin film layers and electrode layers of piezoelectric ceramics are alternately laminated. By converting sound signals into acoustic vibrations and directly transmitting them to the cap wearer's head. You can hear sound.

  By considering the weight balance and disposing each device in the cap 1 as described above, the cap 1 that does not get tired even when worn for a long time is realized.

  An operation unit 14 is detachably mounted on the lower surface of the front edge of the collar 3 by internal insertion.

  The operation unit 14 includes a power button 14a, a volume up button 14b, a volume down button 14c, a music selection button 14d, a play / stop button 14e, and music playback for turning on / off the power of the small amplifier unit 9 and the Bluetooth unit 10. A switching button 14f for switching between a telephone call and a microphone 15 used for a telephone call are integrally arranged on a sheet-like support.

  In addition, each said button 14a-14f can be attached to the collar 3 without conspicuous by using a thin membrane switch.

  Further, by attaching a symbol to the surface of each button, for example, by attaching a symbol such as “●” for the power button 14a, “+”, “−” for the volume up and volume down buttons 14b and 14c, The operation can also be confirmed visually.

  The operation unit 14 may be provided with operation functions other than those described above, for example, “fast forward” and “fast reverse” buttons used during music reproduction, an LED indicator indicating an operation state, and the like.

  FIG. 2 is a block diagram showing a configuration of a wireless communication system using the cap 1.

  In the figure, a Bluetooth-compatible mobile phone 20 is used as a partner for transmitting and receiving signals to and from the Bluetooth unit 10.

  The mobile phone 20 is also provided with a music playback function, which transmits a music signal to the Bluetooth unit 10 during music playback, and transmits / receives a call signal to / from the Bluetooth unit 10 during a call.

  In addition, for music playback and calls, the operation from the operation unit 14 of the cap 1 is also accepted.

  When receiving the music signal, the Bluetooth unit 10 amplifies the music signal through the small amplifier unit 9 and outputs the music signal to the bone conduction speakers 12 and 13 in stereo.

  The bone conduction speakers 12 and 13 are not limited to stereo outputs, and may be monaural outputs.

  The bone conduction speakers 12 and 13 convert the input music signals into acoustic vibrations and transmit them directly to the cap wearer's head.

  Further, the Bluetooth unit 10 processes signals according to a signal (music signal or call signal) transmitted from the mobile phone (external device) 20 according to the flowchart shown in FIG.

  In the figure, when the power button 14a is turned on, a wireless connection is established between the mobile phone 20 and the Bluetooth unit 10 as an initial setting (step S1). However, it is assumed that the mobile phone 20 is powered on.

  Next, the Bluetooth unit 10 checks the state of the switch in the operation unit 14 (step S2).

  If the switching button 14f has been switched to music playback (step S3), the music signal from the mobile phone 20 is received, the received music signal is amplified by the small amplifier unit 9, and the acoustic conduction is generated from the bone conduction speakers 12 and 13. Output, that is, music reproduction is performed (step S4).

  Here, it is determined whether or not an operation for listening to music has been performed (step S5). If, for example, the music selection button 14d, volume up button 14b, volume down button 14c, or the like is pressed, music selection or volume adjustment is performed. Performed (step S6).

  Next, it is determined whether or not the switch button 14f has been pressed, that is, whether or not an operation for making a call has been made (step S7). If YES, music playback is temporarily stopped (step S8).

  Next, a dial-up call is made from the mobile phone 20 (step S9).

  At this time, the ringing tone from the mobile phone 20 and the call after the call is established are wirelessly transmitted to the cap 1, so that the wearer of the cap 1 can make a hands-free call.

  When the call is finished, music playback by the mobile phone 20 is resumed (step S10).

  Next, it is determined whether or not the music reproduction has ended (step S11). If YES, the music reproduction is stopped (step S12).

  If NO in step S7, that is, if an operation for making a call has not been made, the process moves to step S11, and music playback is continued if music playback has not ended.

  FIG. 4 is a flowchart showing the processing when there is an incoming call to the mobile phone 20 during music playback.

  If there is an incoming call during music playback, an interruption to the main routine is performed (step S21).

  Next, a ringing tone is transmitted to the Bluetooth unit 10 and transmitted to the head as an acoustic signal through the bone conduction speakers 12 and 13 (step S22).

  When the switch button 14f is pressed here (step S23), music playback is temporarily stopped (step S24).

  In this state, conversation through the microphone 15 becomes possible (step S25).

  When the call ends, the music playback that has been paused is resumed (step S26).

  As described above, according to the wireless communication system using the cap with bone conduction speaker of the present invention and the Bluetooth-compatible mobile phone having a music playback function, it is possible not only to make a hands-free call but also to touch the mobile phone. Accordingly, music switching and call switching operations, music listening operations, call transmission / reception operations, and the like can be performed from the cap side.

(a) is a left view of the cap with a bone conduction speaker according to the present invention, (b) is a rear view, and (c) is a bottom view. 1 is a block diagram showing a configuration of a wireless communication system according to the present invention. It is a flowchart which shows the control content of the Bluetooth unit shown in FIG. It is a flowchart which shows the process at the time of the incoming call in a wireless communication system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cap 2 Cap body 3 鍔 4 Notch 5 Adjustment belt 6 Buckle 7 Pocket 8 Pocket 9 Small amplifier unit 10 Bluetooth unit 11 Sliding part 11a, 11b Opening part 12 Bone conduction speaker 13 Bone conduction speaker 14 Operation part 14a Power button 14b Volume Up button 14c Volume down button 14d Song selection button 14e Play / stop button 14f Switch button 15 Microphone 20 Mobile phone

Claims (6)

A hooked cap provided with a plurality of pockets on the rear outer surface or inner surface of the cap body covering the head;
A communication / control unit that is stored in one of the pockets, establishes wireless communication with an external device, receives a music signal, or transmits and receives a call signal;
A bone conduction speaker that is attached to the inner surface of the cap body, converts a music signal or a call signal output from the communication / control unit into an acoustic vibration, and directly transmits the sound signal to the head of the cap wearer with the hook,
An operation unit that is attached to the lower surface of the bag and inputs a switching instruction for switching between reception of a music signal and transmission / reception of a call signal to the communication / control unit;
A microphone that is attached to the bottom surface of the bag and collects sound;
A bone conduction speaker-attached cap characterized by comprising:   The cap with a bone conduction speaker according to claim 1, wherein the pocket is made of a mesh material.   The amplifier with a power supply is interposed between the communication / control unit and the bone conduction speaker, and is stored in a pocket different from the pocket in which the communication / control unit is stored. Cap with bone conduction speaker.   The cap with a bone conduction speaker according to any one of claims 1 to 3, wherein the operation unit and the microphone are assembled and integrated on a sheet-like support body, and are detachably attached to the lower surface of the distal end of the heel. .   5. An opening is formed opposite to a slip portion provided on the inner side of the bottom of the cap body, and the vibration surface of the bone conduction speaker is exposed from each opening. The cap with a bone conduction speaker according to any one of the above.   A wireless communication system comprising: the bone conduction speaker-attached cap according to any one of claims 1 to 5; and a mobile phone having a music playback function as the external device.