JP6873824B2 - Communication equipment and control method - Google Patents

Description

This application relates to a communication device and a control method.

Conventionally, there is a communication device. The communication device is, for example, a mobile phone for using a telephone service provided by a telecommunications carrier and a simple radio device using VHF (Very High Frequency) and IP (Internet Protocol) from PHS (Personal Handyphone System). And so on.

Japanese Unexamined Patent Publication No. 2013-187554

It is desired to improve the convenience of the above-mentioned communication device.

The communication device according to one aspect includes a housing, a first microphone, a second microphone, a receiver, a speaker, a third microphone, and a processor. The housing is formed by joining the front case and the back case. The first microphone is a voice transmission during a call and a voice transmission during a call by the first call function that provides a service for a telephone that requires a predetermined operation in advance to transmit the voice transmission during a call. Collects the transmitted voice during a call by the second call function that provides a telephone service that does not require a predetermined operation to transmit. The second microphone collects the transmitted voice during a call by the second call function. The receiver outputs the received voice during the call by the second call function. The speaker outputs the received voice during a call by the first call function and the received voice during a call by the second call function. The third microphone collects the sound used for the noise canceling process during a call. The processor performs processing related to the call. The communication device uses the first microphone and the second microphone so that the distance between the mouthpiece of the first microphone and the speaker hole is longer than the distance between the mouthpiece of the second microphone and the speaker hole. The positional relationship between the microphone and the speaker is adjusted so that the first microphone, the second microphone, and the speaker are provided in the front case, and the third microphone is provided in the rear case. When the processor uses the receiver to output the received voice during a call by the second call function, the processor collects the transmitted voice using the second microphone and receives the receiver based on the input of the third microphone. Executes the noise canceling process of the received voice output from. When the processor executes a call using the speaker to output the received voice during a call by the second call function, the processor collects the transmitted voice using the first microphone and based on the input of the third microphone. Executes noise canceling processing for the received voice output from the speaker. When executing a call by the first call function, the processor collects the transmitted sound by using either the first microphone or the second microphone, and outputs the received sound from the speaker based on the input of the third microphone. Performs the noise canceling process of.

The communication device according to one aspect is based on a processor that executes a voice transmission during a call by the first call function that provides a service for a radio and a second call function that provides a service for a telephone, and a second call function. It includes a receiver that outputs the received voice during a call, a receiver that outputs the received voice during a call by the first call function, and a speaker that outputs the received voice during a call by the second call function. The processor executes the first noise canceling process when executing a call using the receiver to output the received voice during the call by the second call function. When the processor executes a call using the speaker for the output of the received voice during the call by the second call function, the processor executes the second noise canceling process. The processor executes a third noise canceling process when executing a call by the first call function.

The control method according to one aspect is a control method executed by a communication device including a housing, a first microphone, a second microphone, a receiver, a speaker, and a third microphone. The housing is formed by joining the front case and the back case. The first microphone is a voice transmission during a call and a voice transmission during a call by the first call function that provides a service for a telephone that requires a predetermined operation in advance to transmit the voice transmission during a call. Collects the transmitted voice during a call by the second call function that provides a telephone service that does not require a predetermined operation to transmit. The second microphone collects the transmitted voice during a call by the second call function. The receiver outputs the received voice during the call by the second call function. The speaker outputs the received voice during a call by the first call function and the received voice during a call by the second call function. The communication device uses the first microphone and the second microphone so that the distance between the mouthpiece of the first microphone and the speaker hole is longer than the distance between the mouthpiece of the second microphone and the speaker hole. The positional relationship between the microphone and the speaker is adjusted so that the first microphone, the second microphone, and the speaker are provided in the front case, and the third microphone is provided in the rear case. The control method is based on the input of the third microphone by collecting the transmitted voice using the second microphone when executing a call using the receiver to output the received voice during the call by the second call function. When executing the step of executing the noise canceling process of the received voice output from the receiver and the call using the speaker for the output of the received voice during the call by the second call function, the first microphone is used for transmission. When executing the noise canceling process of the received voice that collects the voice and outputs it from the speaker based on the input of the third microphone, and when executing the call by the first call function, the first microphone and the second microphone This includes a step of collecting the transmitted voice using any one of the above and executing a noise canceling process of the received voice output from the speaker based on the input of the third microphone.

FIG. 1 is a perspective view showing the appearance of the communication device according to the embodiment. FIG. 2 is a six-view view showing the appearance of the communication device according to the embodiment. FIG. 3 is a front view showing the inner wall surface side of the front case before mounting the speaker according to the embodiment. FIG. 4 is a perspective view showing the inner wall surface side of the front case according to the embodiment. FIG. 5 is an assembly drawing showing the assembly around the speaker according to the embodiment from the outer wall surface side. FIG. 6 is a front view showing the inner wall surface side of the front case after mounting the speaker according to the embodiment. FIG. 7 is a partially enlarged view of a perspective view showing the inner wall surface side of the front case according to the embodiment. FIG. 8 is an enlarged view showing a cross section taken along the line II of FIG. 2 according to the embodiment. FIG. 9 is an enlarged view showing a cross section taken along line II-II of FIG. 2 according to the embodiment. FIG. 10 is a diagram showing an example of the functional configuration of the communication device according to the embodiment. FIG. 11 is a flowchart showing a flow of processing by the communication device according to the embodiment. FIG. 12 is a flowchart showing the flow of processing by the communication device according to the embodiment.

The embodiments according to the present application will be described in detail with reference to the drawings. In the following description, similar components may be designated by the same reference numerals. Further, duplicate description may be omitted.

The appearance of the communication device according to the embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing the appearance of the communication device according to the embodiment. FIG. 2 is a six-view view showing the appearance of the communication device according to the embodiment. The six views shown in FIG. 2 are a plan view V1 of the communication device 1, a left side view V2 of the communication device 1, a front view V3 of the communication device 1, a right side view V4 of the communication device 1, and a rear view V5 of the communication device 1. , The bottom view V6 of the communication device 1.

As shown in FIGS. 1 and 2, the communication device 1 according to the embodiment has a rectangular parallelepiped housing 300 in which a front case 100 and a back case 200 are joined. The front case 100 is an example of a front case, the back case 200 is an example of a back case, and the housing 300 is an example of a housing.

As shown in the front view V3, the communication device 1 includes a microphone 2A, a receiver 7, a keypad 3, a display 4, a proximity sensor 5, and an LED (Light-Emitting Diode) 21. The keypad 3 and the display 4 are arranged on the front case 100 so as to be adjacent to each other along the longitudinal direction (y-axis direction shown in FIG. 1) of the housing 300. The microphone 2A, the receiver 7, the proximity sensor, and the LED 21 are arranged on the upper side of the display 4 (the positive direction side of the y-axis shown in FIG. 1). The microphone 2A collects voice during a call, voice for voice recognition processing, and the like.

Further, as shown in the front portion V3, the front case 100 is provided with an opening 110 of the microphone 2A and the receiver 7, and a speaker hole 120 which is an opening leading to the speaker 11. The surface of the front case 100 shown in the front view V3 is a surface that faces or contacts the user who uses the communication device 1, and is described as an "outer wall surface" in the following description. On the contrary, the back surface of the "outer wall surface" of the front case 100, which does not appear in the front view V3, is referred to as "inner wall surface" in the following description.

As shown in the left side view V2, the communication device 1 has a transmission key 22 operated to transmit the voice during a call by the service for the wireless device to the housing 300, and a volume control for adjusting the voice during the call and the like. It includes a key 23. Further, as shown in the left side view V2, the housing 300 is provided with an opening 130a of a through hole leading to the speaker 11 housed inside the communication device 1. The transmission key 22 is an example of a transmission key.

As shown in the right side view V4, the communication device 1 has an emergency notification key 24 in the housing 300. Further, as shown in the right side view V4, the housing 300 is provided with an opening 130b of a through hole leading to the speaker 11 housed inside the communication device 1.

As shown in the plan view V1, the communication device 1 has an accessory mounting portion 210 in the housing 300. Various accessories manufactured according to the communication device 1 are attached to the accessory attachment portion 210.

The communication device 1 has a microphone 2B as shown in the bottom view V6. The microphone 2B collects voice during a call, voice for voice recognition processing, and the like.

As shown in the rear view V5, the communication device 1 has a microphone 2C, a camera 12, and a flash 25. The microphone 2C is used, for example, in a noise canceling process that reduces ambient noise during a call.

As shown in the front portion V3 and the bottom view V6, the distance between the microphone 2A (the mouthpiece) and the speaker hole 120 is larger than the distance between the microphone 2B (the mouthpiece) and the speaker hole 120. The microphone 2A, the microphone 2B, and the speaker 11 are provided on the front case 100 by adjusting the positional relationship between the microphone 2A, the microphone 2B, and the speaker 11 so as to be longer. As shown in the rear view V5, the microphone 2C is provided in the rear case 200 away from the microphone 2A and the microphone 2B.

FIG. 3 is a front view showing the inner wall surface side of the front case before mounting the speaker according to the embodiment. FIG. 4 is a perspective view showing the inner wall surface side of the front case according to the embodiment. FIG. 5 is an assembly drawing showing the assembly around the speaker according to the embodiment from the outer wall surface side. FIG. 6 is a front view showing the inner wall surface side of the front case after mounting the speaker according to the embodiment.

As shown in FIG. 3, the front case 100 includes a speaker storage unit 140 for storing the speaker 11 on the inner wall surface side. Further, as shown in FIG. 4, the speaker storage unit 140 includes a contact surface 140a with which the speaker 11 abuts, and a step 140b that determines the distance between the speaker 11 and the inner wall surface of the front case 100. The speaker storage unit 140 is processed into a circular shape.

As shown in FIG. 5, the speaker 11 emits sound toward the inner wall surface side so as to face the contact surface between the front case 100 and the keypad 3 (minus direction of the z-axis shown in FIG. 4). , Attached to the speaker housing 140 and fixed by the fixing panel 150. The speaker 11 has, for example, a diaphragm having a conical or dome shape and a round shape, and the diaphragm has an effective radius of vibration φ of at least 18 mm. As shown in FIG. 6, the entire exposed surface of the speaker housing unit 140 is covered by the speaker 11 attached.

FIG. 7 is a partially enlarged view of a perspective view showing the inner wall surface side of the front case according to the embodiment. As shown in FIG. 7, the speaker accommodating portion 140 is an air chamber (FIGS. 8 and 9) formed between the speaker 11 and the inner wall surface of the front case 100 by attaching the speaker 11 to the speaker accommodating portion 140. (See), it has through holes 131a and 131b that communicate with the outside of the housing 300. The through holes 131a and 131b are on the opposite side of the center of the speaker 11 from the speaker hole 120, and are symmetrical to each other (passing through the center of the speaker 11 and line-symmetrical with respect to a straight line parallel to the y-axis). ).

FIG. 8 is an enlarged view showing a cross section taken along the line II of FIG. 2 according to the embodiment. FIG. 9 is an enlarged view showing a cross section taken along line II-II of FIG. 2 according to the embodiment.

As shown in FIG. 8, when the speaker 11 is attached to the speaker storage portion 140, an air chamber 500 is formed between the speaker 11 and the inner wall surface of the front case 100. The through holes 131a and 131b lead to the air chamber 500 from the outside of the housing 300. Further, as shown in FIG. 9, the speaker holes 120 provided in the front case 100 also communicate with the air chamber 500 from the outside of the housing 300, similarly to the through holes 131a and 131b.

The built-in speaker housed in a housing or the like may cause sound deviation and abnormal noise due to the occurrence of a rolling phenomenon in which the diaphragm vibrates unevenly. To prevent the rolling phenomenon from occurring, it is necessary to vibrate the diaphragm as uniformly as possible. In order to vibrate the diaphragm as uniformly as possible, it is preferable to provide a speaker hole directly above the diaphragm of the speaker and near the center. However, when the keypad 3, the display 4, and the speaker 11 having an effective vibration radius φ of 18 mm or more are mounted as in the communication device 1, the speaker 11 is true due to the restrictions on the housing design and the design. It is difficult to provide the speaker hole 120 on the top. Therefore, for example, as shown in FIG. 2, the communication device 1 is provided with the speaker hole 120 on the lower side of the keypad 3 (the negative direction side of the y-axis shown in FIG. 1). Since the position of the speaker hole 120 shown in FIG. 2 is not directly above the diaphragm of the speaker 11, the vibration of the diaphragm may become non-uniform as it is. Therefore, the communication device 1 provides through holes 131a and 131b in the speaker storage portion 140 to secure another through hole other than the speaker hole 120 as an escape hole for air from the air chamber 500. As a result, the communication device 1 can vibrate the diaphragm of the speaker 11 more uniformly as compared with the case where the air vent from the air chamber 500 is only the speaker hole 120. Further, by providing the through holes 131a and 131b in the speaker storage portion 140, the sound output from the speaker holes 120 to the outside is output not a little from the through holes 131a and 131b, so that the sound is surely output to the outside. The effect of making it is also expected.

In the examples shown in FIGS. 8 and 9, the communication device 1 is placed at a position symmetrical with each other (a position line-symmetrical with respect to a straight line passing through the center of the speaker 11 and parallel to the y-axis) from the air chamber 500 to the housing. It is provided with two through holes 131a and 131b leading to the outside of the 300, but is not limited to this example. For example, the communication device 1 may be provided with one through hole at a position opposite to the speaker hole 120 with the center of the speaker 11 interposed therebetween.

FIG. 10 is a diagram showing an example of the functional configuration of the communication device according to the embodiment. As shown in FIG. 10, the communication device 1 includes a microphone 2A, a microphone 2B, a microphone 2C, a keypad 3, a display 4, a proximity sensor 5, a communication unit 6, a receiver 7, and a storage 9. , The processor 10, the speaker 11, the camera 12, the connector 13, the LED 21, the transmission key 22, the volume control key 23, the emergency notification key 24, and the flash 25.

The microphone 2A collects the transmitted voice of a call using the first call function that provides a service for a radio that requires a predetermined operation in advance in order to transmit the transmitted voice during the call. The microphone 2A also collects the spoken voice during a call using the second call function that provides a telephone service that does not require a predetermined operation to transmit the spoken voice during the call. The microphone 2A can collect, for example, push-to-talk (Push-to-Talk, hereinafter appropriately referred to as “PTT”) transmitted voice and speaker call transmitted voice. The microphone 2A is an example of the first microphone.

Radio services include services using VoIP (Voice over Internet Protocol) such as PTT and POC (Push-to-talk Over Cellular), as well as FRS (Family Radio Service) and GMRS (General Mobile Radio). .. Telephone services include telephone services for mobile phones provided by telecommunications carriers.

The microphone 2B collects sound propagating to the inside of the housing 300 (air chamber 500), such as a transmitted voice during a call executed by using a telephone service or a voice for voice recognition processing. The microphone 2B is an example of the second microphone.

The microphone 2C collects sounds used in noise canceling processing that reduces ambient noise during a call. The microphone 2C is an example of a third microphone.

The keypad 3 includes a plurality of keys that receive operation input from the user. When the keypad 3 receives the operation input from the user, the keypad 3 notifies the processor 10 that the operation input has been accepted. The number of keys included in the keypad 3 may be any number. The keypad 3 may include a numeric keypad and a QWERTY key.

The display 4 is a display such as a liquid crystal display (LCD: Liquid Crystal Display), an organic EL display (OELD: Organic Electro-Luminence Display), or an inorganic EL display (IELD: Organic Electro-Luminence Display). The display 4 displays objects such as characters, images, symbols, and figures on the screen. The screen including the object displayed by the display 4 includes a screen called a lock screen, a screen called a home screen, and an application screen displayed while the application is being executed. The home screen may be called a desktop, a standby screen, an idle screen, a standard screen, an application list screen, or a launcher screen. The display 4 is an example of a display unit.

The proximity sensor 5 can detect the presence of a nearby object in a non-contact manner. The proximity sensor 5 detects the presence of an object based on a change in a magnetic field, a change in the feedback time of an ultrasonic reflected wave, or the like. The proximity sensor 5 may be used, for example, to detect that the user's face has approached the display 4. As the proximity sensor 5, the illuminance sensor may be used as the proximity sensor.

The communication unit 6 can communicate wirelessly. The communication unit 6 supports a wireless communication standard. The wireless communication standards supported by the communication unit 6 include, for example, cellular phone communication standards such as 2G, 3G, 4G, and 5G, and short-range wireless communication standards. Communication standards for cellular phones include, for example, LTE (Long Term Evolution), W-CDMA (Wideband Code Division Multiple Access), WiMAX® (registered trademark) (Worldwide Interoperability Mobile, CellPower) There are GSM (registered trademark) (Global System for Mobile Communications), PHS (Personal Handy-phone System) and the like. As short-range wireless communication standards, for example, IEEE802.11 (IEEE is an abbreviation for The Institute of Electrical and Electronics Engineers, Inc.), Bluetooth®, Infrared Data Association (Infrared Data Association), IrDA (Infrared Data Association). Field Communication), WPAN (Wireless Personal Area Network) and the like are included. Communication standards of WPAN include, for example, ZigBee (registered trademark), DECT (Digital Enhanced Cordless Telecommunications), Z-Wave, and WiSun (Willess Smart Utility Network). The communication unit 6 may support one or more of the above-mentioned communication standards.

The receiver 7 can output a sound signal transmitted from the processor 10 as sound. The receiver 7 can output, for example, the sound of a moving image played by the communication device 1, the sound of music, and the voice of the other party during a call.

The storage 9 can store programs and data. The storage 9 may be used as a work area for temporarily storing the processing result of the processor 10. The storage 9 may include any non-transitory storage medium such as a semiconductor storage medium and a magnetic storage medium. The storage 9 may include a plurality of types of storage media. The storage 9 may include a combination of a storage medium such as a memory card, an optical disk, or a magneto-optical disk, and a reader of the storage medium. The storage 9 may include a storage device used as a temporary storage area such as a RAM (Random Access Memory).

The program stored in the storage 9 includes an application executed in the foreground or the background, and a basic program that supports the operation of the application. The screen of the application is displayed on the display 4, for example, when it is executed in the foreground. The basic program includes, for example, an OS (Operating System). The application and the basic program may be installed in the storage 9 via wireless communication by the communication unit 6 or a non-transient storage medium.

The storage 9 can store the control program 9A, the telephone application 9B, the radio application 9C, the setting data 9Z, and the like.

The control program 9A can each provide a function for realizing processing related to various operations of the communication device 1. The function provided by the control program 9A includes a function of changing the brightness of the display 2A based on the detection result of the proximity sensor 5. The functions provided by the control program 9A are a function for realizing a call by controlling the microphones 2A, 2B, 2C, a communication unit 6, a receiver 7, a speaker 11, and the like, and noise for removing noise from the received voice during a call. Includes a function to execute canceling processing. The function provided by the control program 9A includes a function of controlling the shooting process of the camera 12. The function provided by the control program 9A includes a function of controlling communication with an external device connected via the connector 13.

The function provided by the control program 9A includes a function for realizing a call using a telephone service in cooperation with the telephone application 9B. Calls using the telephone service include a call in which the transmitted voice is collected by the microphone 2B and the received voice is sounded by the receiver 7 (hereinafter referred to as a normal call), and the transmitted voice is collected by the microphone 2B. And hands-free call in which the received voice is sounded by the speaker 11. In the following, what is described as a hands-free call corresponds to a call in which the received voice is pronounced by the speaker 11, and does not include a call executed by using a dedicated headset or the like.

The function provided by the control program 9A includes a function for realizing a call using the radio device service in cooperation with the radio device application 9C.

The function provided by the control program 9A is noise canceling of the received voice that collects the transmitted voice using the microphone 2B and outputs it from the receiver 7 based on the input of the microphone 2C during a normal call using the receiver 7. Includes functions for executing processing. The function provided by the control program 9A is a noise canceling of the received voice that collects the transmitted voice using the microphone 2A and outputs it from the speaker 11 based on the input of the microphone 2C during a hands-free call using the speaker 11. Includes functionality for performing ring processing. The function provided by the control program 9A is that during PTT, the transmitted voice is collected by using either the microphone 2A or the microphone 2B, and the noise of the received voice output from the speaker 11 based on the input of the microphone 2C. Includes a function to execute canceling processing.

The telephone application 9B can provide a call function for realizing a call by wireless communication. The radio application 9C can provide a call function for realizing a call using VoIP such as PTT.

The setting data 9Z is configured to include various data used for processing in the communication device 1.

The processor 10 can realize various functions by comprehensively controlling the operation of the communication device 1. The processor 10 includes an arithmetic processing unit. The arithmetic processing unit may include, for example, a CPU (Central Processing Unit), a System (System-on-a-Chip), an MCU (MicroControl Unit), an FPGA (Field-Programmable Gate Array), and a coprocessor. Not limited to these. The SoC may be integrated with other components such as the communication unit 6. The processor 10 is an example of a processor.

Specifically, the processor 10 executes an instruction included in the program stored in the storage 9 while referring to the data stored in the storage 9 as necessary. The processor 10 controls a functional unit according to data and instructions, thereby realizing various functions. The functional unit includes, but is not limited to, at least one of, for example, microphones 2A, 2B, 2C, display 4, communication unit 6, and speaker 11. The processor 10 may change the control according to the detection result of the detection unit. The detection unit includes, but is not limited to, at least one of, for example, microphones 2A, 2B, 2C, keypad 3, proximity sensor 5, and camera 12.

By executing the control program 9A, the processor 10 cooperates with the telephone application 9B to realize a call using the telephone service. By executing the control program 9A, the processor 10 cooperates with the radio device application 9C to realize a call using the radio device service.

By executing the control program 9A, the processor 10 collects the transmitted sound using the microphone 2B during a normal call using the receiver 7, and outputs the received sound from the receiver 7 based on the input of the microphone 2C. Achieves noise canceling processing. By executing the control program 9A, the processor 10 collects the transmitted sound using the microphone 2A during a hands-free call using the speaker 11, and outputs the received sound from the speaker 11 based on the input of the microphone 2C. Achieves noise canceling processing for audio signals. By executing the control program 9A, the processor 10 collects the transmitted sound by using either the microphone 2A or the microphone 2B at the time of PTT, and outputs the transmitted sound from the speaker 11 based on the input of the microphone 2C. Includes a function for executing noise canceling processing of the received voice signal.

The speaker 11 can output a sound signal transmitted from the processor 10 as sound. The speaker 11 may output, for example, a ringtone, music, a received voice during a speaker call, and the like.

The camera 12 can convert the captured image into an electric signal. The camera 12 may be mounted on the communication device 1 in a functionally and physically integrated state as a camera unit that can be used by switching between an in-camera and an out-camera.

The connector 13 is a terminal to which another device is connected. The connector 13 may be a general-purpose terminal such as USB (Universal Serial Bus), HDMI (registered trademark) (High-Definition Multimedia Interface), Light Peak (Thunderbolt (registered trademark)), and earphone / microphone connector. .. The connector 13 may be a dedicated terminal such as a Dock connector. Devices connected to the connector 13 include, but are not limited to, for example, external storage, speakers, and communication devices.

The LED 21 emits light in a predetermined pattern or color under the control of the processor 10. The transmission key 22 accepts an operation of transmitting the transmitted voice during a call using the radio service. The volume control key 23 accepts an operation for adjusting the volume of the sound output from the communication device 1, such as the received voice during a call. The emergency notification key 24 receives an operation of outputting a buzzer sound or the like for notifying the surroundings of an emergency situation or the like from the speaker 11 or the like. The flash 25 provides a flash that illuminates the subject when the camera 12 shoots, a light source that illuminates the user's hand, and the like.

The communication device 1 may include an illuminance sensor, a motion sensor, a GPS receiver, a vibrator, and the like, in addition to the functional units shown in FIG.

The illuminance sensor detects the illuminance. The illuminance is the value of the luminous flux incident on the unit area of the measurement surface of the illuminance sensor. The illuminance sensor can be used, for example, to adjust the brightness of the display 4. The motion sensor can detect various information for determining the operation of the user carrying the communication device 1. The motion sensor may be configured as a sensor unit including an acceleration sensor, an orientation sensor, a gyro sensor, a magnetic sensor, a pressure sensor, and the like. The GPS receiver receives radio signals in a predetermined frequency band from GPS satellites. The GPS receiver performs demodulation processing of the received radio wave signal and sends the processed signal to the processor 10. The GPS receiver supports arithmetic processing of the current position of the communication device 1. The communication device 1 may include a receiver capable of receiving signals of a positioning artificial satellite other than a GPS satellite, and may execute arithmetic processing of the current position. The vibrator vibrates a part or the whole of the communication device 1. The vibrator has, for example, a piezoelectric element, an eccentric motor, or the like in order to generate vibration. The communication device 1 is provided with a functional unit that is naturally used to maintain the function of the communication device 1, such as a battery, and a control unit that is naturally used to realize the control of the communication device 1. ..

An example of processing of the communication device according to the embodiment will be described with reference to FIGS. 11 and 12. 11 and 12 are flowcharts showing a flow of processing by the communication device according to the embodiment. The processes shown in FIGS. 11 and 12 are realized by the processor 10 executing the control program 9A. The processes shown in FIGS. 11 and 12 are executed when the call is started. 11 and 12 show a case where the call using the radio service is PTT.

As shown in FIG. 11, the processor 10 determines whether it is a hands-free call or PTT (step S101).

As a result of the determination, the processor 10 executes the input of the transmitted voice from the microphone 2A when it is a hands-free call or PTT (step S101, Yes) (step S102). Following the input of the transmitted voice, the processor 10 executes a noise canceling process of the received voice signal based on the input of the microphone 2C (step S103), and outputs the received voice from the speaker 11 (step S104). ..

Following the output of the received voice, the processor 10 determines whether or not the call has been terminated (step S105).

As a result of the determination, when the call is terminated (steps S105, Yes), the processor 10 terminates the process shown in FIG.

As a result of the determination, if the processor 10 has not finished the call (steps S105, No), the processor 10 returns to the determination in step S101.

In step S101, if the result of the determination is that the call is not hands-free or PTT (steps S101, No), the processor 10 executes the input of the transmitted voice from the microphone 2B (step S106). Following the input of the transmitted voice, the processor 10 executes a noise canceling process of the received voice signal based on the input of the microphone 2C (step S107), and executes the output of the received voice from the receiver 7 (step S108). .. After outputting the received voice, the processor 10 moves on to the determination in step S105.

In the example shown in FIG. 11, the case where the microphone that collects the transmitted voice during the hands-free call and the PTT is both the microphone 2A has been described. However, in the following, the hands-free call and the PTT will be described by using FIG. The case where the microphones that collect the transmitted voices are different from each other will be described.

As shown in FIG. 12, the processor 10 determines whether the call is hands-free (step S201).

As a result of the determination, the processor 10 executes the input of the transmitted voice from the microphone 2A when the call is hands-free (step S201, Yes) (step S202). Following the input of the transmitted voice, the processor 10 executes a noise canceling process of the received voice signal based on the input of the microphone 2C (step S203), and executes the output of the received voice from the speaker 11 (step S204). ..

Following the output of the received voice, the processor 10 determines whether or not the call has been terminated (step S205).

As a result of the determination, when the call is terminated (steps S205, Yes), the processor 10 terminates the process shown in FIG.

As a result of the determination, if the processor 10 has not finished the call (steps S205, No), the processor 10 returns to the determination in step S201.

In step S201, when the result of the determination is that the call is not hands-free (steps S201, No), the processor 10 determines whether it is PTT (step S206).

If the result of the determination is PTT (step S206, Yes), the processor 10 executes the input of the transmitted voice from the microphone 2B (step S207). Following the input of the transmitted voice, the processor 10 executes a noise canceling process of the received voice signal based on the input of the microphone 2C (step S208), and outputs the received voice from the speaker 11 (step S209). .. After outputting the received voice, the processor 10 moves to the determination in step S205.

In step S206, if the result of the determination is that the processor 10 is not PTT (step S206, No), it is a normal call, so the processor 10 executes the input of the transmitted voice from the microphone 2B (step S210). Following the input of the transmitted voice, the processor 10 executes a noise canceling process of the received voice signal based on the input of the microphone 2C (step S211), and outputs the received voice from the receiver 7 (step S212). .. After outputting the received voice, the processor 10 moves to the determination in step S205.

In the examples shown in FIGS. 11 and 12, the processor 10 uses the microphone 2A for hands-free calling and PTT, and uses the microphone 2B for normal calling. In this way, the communication device 1 can use a microphone for collecting the transmitted voice properly according to the method of calling. Further, in the examples shown in FIGS. 11 and 12, the processor 10 performs noise canceling processing of the received voice signal based on the input of the microphone 2C in any of the hands-free call, PTT, and normal call. To execute. Therefore, the communication device 1 can reduce the noise of the received voice regardless of the method of calling.

Conventionally, during a hands-free call, the sound output from the speaker is collected by the microphone due to the increase in the output volume of the speaker and the sensitivity of the microphone, resulting in an echo and a call. It is a hindrance. Therefore, in a conventional device such as a mobile phone equipped with a double microphone, for noise canceling processing provided on the surface opposite to the sound emitting surface of the speaker, for example, from the viewpoint of preventing echo during hands-free calling. The microphone is used to collect the transmitted sound during a hands-free call. Therefore, in the past, there was no choice but to sacrifice the noise canceling ring processing during hands-free calling.

On the other hand, according to the communication device 1 according to the embodiment, in the case of a hands-free call, the microphone 2A collects the transmitted voice and the microphone 2C collects the sound used for the noise canceling process. .. Further, in the communication device 1, the microphone 2A, the microphone 2B, and the speaker 11 are arranged so that the distance between the microphone 2A and the speaker hole 120 is longer than the distance between the microphone 2B and the speaker hole 120. The microphone 2A, the microphone 2B, and the speaker 11 are provided on the front case 100 by adjusting the positional relationship between them (see FIG. 2). The communication device 1 can reduce the echo during a hands-free call as much as possible by using the microphone 2A, which is farther from the speaker 11 than the microphone 2B, to collect the transmitted voice during the hands-free call. Further, since the communication device 1 can continuously use the microphone 2C as a microphone for collecting the sound for the noise canceling process during the hands-free call, the noise canceling process at the time of the hands-free call is sacrificed. It is not necessary to do so, and noise canceling processing during hands-free calling can be realized. As described above, the communication device 1 according to the embodiment can improve the convenience.

Further, during a hands-free call, the communication device 1 uses the microphone 2A provided on the outer wall surface side of the housing 300 to collect the transmitted voice during the call, and therefore collects the sound using the microphone 2B. Sound collection performance tends to improve rather than doing so.

As shown in FIG. 11, the communication device 1 can collect the transmitted voice uttered toward the housing 300 by the microphone 2A while operating the transmission key 22 at the time of PTT. Thereby, for example, it is possible to provide the user with a usage pattern similar to that of a radio that performs voice transmission by performing a predetermined key operation. On the other hand, as shown in FIG. 12, the communication device 1 can also collect the transmitted voice uttered toward the housing 300 by the microphone 2B while operating the transmission key 22 at the time of PTT. .. As a result, it is easy to deal with the usage mode of the user who has a strong tendency to pronounce toward the microphone 2B at the time of voice input.

In order to fully and clearly disclose the technology according to the attached claims, characteristic embodiments have been described. However, the accompanying claims are not limited to the above embodiments, and all modifications and alternatives that can be created by those skilled in the art within the scope of the basic matters set forth herein. It should be embodied in a possible configuration.

1 Communication device 2A Microphone 2B Microphone 2C Microphone 3 Keypad 4 Display 5 Proximity sensor 6 Communication unit 7 Receiver 9 Storage 9A Control program 9B Telephone application 9C Radio application 9Z Setting data 10 Processor 11 Speaker 12 Camera 13 Connector 21 LED
22 Transmission key 23 Volume control key 24 Emergency notification key 25 Flash

Claims (7)

A rectangular parallelepiped housing formed by joining the front case and the back case,
To transmit the voice during a call and the voice during a call by the first call function that provides a service for a radio that requires a predetermined operation in advance to transmit the voice during a call. A first microphone that collects the transmitted voice during a call by the second call function that provides a telephone service that does not require the predetermined operation, and a first microphone.
A second microphone that collects the transmitted voice during a call by the second call function, and
A receiver that outputs the received voice during a call by the second call function, and
A speaker that outputs the received voice during a call by the first call function and the received voice during a call by the second call function.
A third microphone that collects the sound used for noise canceling processing during a call,
Equipped with a processor that performs processing related to calls
The distance between the mouthpiece of the first microphone and the speaker hole, which is an opening leading to the speaker, is longer than the distance between the mouthpiece of the second microphone and the speaker hole. The positional relationship between the first microphone, the second microphone, and the speaker is adjusted, the first microphone, the second microphone, and the speaker are provided in the front case, and the third microphone is provided in the front case. Provided in the back case
The processor
When a call using the receiver is executed to output the received voice during a call by the second call function, the transmitted voice is collected by using the second microphone and based on the input of the third microphone. The noise canceling process of the received voice output from the receiver is executed.
When a call using the speaker is executed to output the received voice during a call by the second call function, the transmitted voice is collected by using the first microphone and based on the input of the third microphone. The noise canceling process of the received voice output from the speaker is executed.
When executing a call by the first call function, the transmitted voice is collected by using either the first microphone or the second microphone and output from the speaker based on the input of the third microphone. A communication device that executes noise canceling processing of the received voice. The communication device according to claim 1, wherein the diaphragm included in the speaker has an effective vibration radius of at least 18 mm or more. The communication device according to claim 1 or 2, further comprising a display unit in the housing. The housing is further provided with a transmission key for transmitting voice during a call in call processing using the first call function.
The processor
The communication device according to any one of claims 1 to 3, wherein the voice input during the continuation of the operation is simultaneously transmitted to a plurality of parties, provided that the operation on the transmission key is ongoing. The communication device according to any one of claims 1 to 4, further comprising an emergency notification button for executing emergency notification in the housing. The communication device according to any one of claims 1 to 5, wherein the housing includes an accessory mounting portion. A rectangular parallelepiped housing formed by joining the front case and the back case,
To transmit the voice during a call and the voice during a call by the first call function that provides a service for a radio that requires a predetermined operation in advance to transmit the voice during a call. A first microphone that collects the transmitted voice during a call by the second call function that provides a telephone service that does not require the predetermined operation, and a first microphone.
A second microphone that collects the transmitted voice during a call by the second call function, and
A receiver that outputs the received voice during a call by the second call function, and
A speaker that outputs the received voice during a call by the first call function and the received voice during a call by the second call function.
Equipped with a third microphone that collects the sound used for noise canceling processing during a call
The distance between the mouthpiece of the first microphone and the speaker hole, which is an opening leading to the speaker, is longer than the distance between the mouthpiece of the second microphone and the speaker hole. The positional relationship between the first microphone, the second microphone, and the speaker is adjusted, the first microphone, the second microphone, and the speaker are provided in the front case, and the third microphone is provided in the front case. It is a control method executed by the communication device installed in the rear case.
When a call using the receiver is executed to output the received voice during a call by the second call function, the transmitted voice is collected by using the second microphone and based on the input of the third microphone. And the step of executing the noise canceling process of the received voice output from the receiver.
When a call using the speaker is executed to output the received voice during a call by the second call function, the transmitted voice is collected by using the first microphone and based on the input of the third microphone. And the step of executing the noise canceling process of the received voice output from the speaker.
When executing a call by the first call function, the transmitted voice is collected by using either the first microphone or the second microphone and output from the speaker based on the input of the third microphone. A control method including a step of executing a noise canceling process of the received voice.

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