JP5266968B2 - Audio signal processing device, speaker device, video display device, communication device, and audio system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio signal processor, a speaker device, a picture display device, a communication device, and an audio system in which a user can recognize a control value easily in controlling by a remote manipulation as well. <P>SOLUTION: In the audio system, a sound is made according to an audio signal Sin reproduced in a portable audio device of a communication device 20 from a sound making part of a speaker device 10. A user changes a volume value by a manipulation in a manipulation part of the communication device 20 and a manipulation in a manipulation part of the speaker device 10, thereby changing the volume of the audio signal Sin for making a sound. Since either manipulation causes a display part of the communication device 20 to display in response to the present volume value after the change, the user can recognize the present volume value easily in the communication device 20 near at hand. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a technique for improving operability in a communication device such as a remote control device for remotely operating an electric device.

A remote control device for remotely operating an electric device or the like is controlled according to the operation by operating the remote control device. For example, the wireless headset disclosed in Patent Document 1 has a function of a remote control device that can control the volume value of the audio device main body that is remotely operated.
JP 2003-259475 A

  As disclosed in Patent Document 1, when a remote control device that controls the volume controls the volume value of the audio equipment main body, it responds to an instruction to increase or decrease the value based on the currently set volume value. Therefore, in order to recognize the set volume value itself, the user must confirm by, for example, display on a display provided in the audio device main body.

  On the other hand, in the case of a remote control device in which the volume value itself can be designated and set in the audio equipment body, the volume value can be recognized at the time of operation of the remote control device. However, when the volume value is changed in the audio equipment main body, it is necessary to check the display in the audio equipment main body in the same manner as described above in order to recognize the currently set volume value. Therefore, for example, if you want to increase the volume from the current level, you must check the display on the audio device body to recognize the current volume value, and then operate the remote control device to specify the volume value you want to set. was there.

  The present invention has been made in view of the above-described circumstances, and an audio signal processing device, a speaker device, a video display device, a communication device, and an audio system that allow a user to easily recognize a control value even in remote control. The purpose is to provide.

In order to solve the above-described problem, the present invention provides a receiving unit that receives an audio signal from an external device by wireless communication at a predetermined interval, a storage unit that stores setting information indicating a parameter of signal processing, and the receiving unit. Signal processing means for performing signal processing on the received audio signal according to the setting information stored in the storage means and outputting the signal, and setting information indicating a parameter of the signal processing by the receiving means Is set by the setting information receiving means, the setting information receiving means for receiving from the external device by wireless communication, the instruction means for instructing the change of the parameter indicated by the setting information stored in the storage means, and the setting information receiving means When the information is received, the setting information stored in the storage means is received by the setting information receiving means. When a change of the parameter indicated by the setting information is instructed by the instruction means and the first updating means for updating in accordance with the constant information, the setting information stored in the storage means is updated in accordance with the instruction When the inquiry signal is received by the second update means, the inquiry signal receiving means for receiving the inquiry signal from the external device at predetermined intervals by wireless communication, and the inquiry signal receiving means, the storage means A response signal transmitting means for transmitting a response signal to the external device by wireless communication when it is determined whether the setting information stored in is updated after receiving the previous inquiry signal; a transmission request receiving means for receiving a transmission request signal transmitted from the external device in response to the reply signal by wireless communication, a transmission request signal by the transmission request receiving means is received, the Providing an audio signal processing apparatus characterized by comprising a transmitting means for transmitting by wireless communication setting information stored in 憶 means to the external device.

  In another preferred embodiment, the instructing unit instructs to change a parameter indicated by setting information stored in the storage unit in accordance with an operation of an operator.

  In another preferred embodiment, the parameter indicated by the setting information stored in the storage unit is a parameter indicating an amplification factor, and the signal processing performed on the audio signal by the signal processing unit is the storage unit. Signal processing that amplifies at an amplification factor related to the setting information stored in.

  In another preferred aspect, the apparatus further comprises detection means for detecting the strength of communication radio waves from the external device, and the signal processing means stores the audio signal received by the reception means in the storage means. Signal processing is performed according to the stored setting information and the intensity of the communication radio wave detected by the detection means, and output.

  The present invention also provides a speaker device comprising the above-described audio signal processing device and sound emitting means for emitting an audio signal output from the signal processing means.

  In addition, the present invention includes the above-described speaker device and display means for displaying on a display screen, the acquisition means further acquires a video signal, and the display means is acquired by the acquisition means. There is provided a video display device characterized by performing display in accordance with a video signal and setting information stored in the storage means.

The present invention also shows an acquisition unit for acquiring an audio signal, a transmission unit for transmitting the audio signal acquired by the acquisition unit to an external device at predetermined intervals by wireless communication, and a parameter for signal processing. Storage means for storing setting information, inquiry signal transmitting means for transmitting an inquiry signal to the external device at a predetermined interval by wireless communication, and setting information stored in the external device is the previous inquiry signal. A response signal receiving means for receiving a response signal transmitted from the external device when updated after reception by wireless communication; and when the response signal is received by the response signal receiving means, a transmission request signal is sent to the external device a transmission request signal transmitting means for transmitting by wireless communication, the transmitted according to the transmission request signal, setting information indicating a parameter of the signal processing, or the external device Receiving means for receiving by wireless communication; operating means for instructing to change a parameter indicated by the setting information stored in the storage means; and a display for performing display according to the setting information stored in the storage means And a first updating means for updating the setting information stored in the storage means according to the setting information received by the receiving means when the setting information is received by the receiving means, and the operation When the change of the parameter indicated by the setting information is instructed by the means, the second updating means for updating the setting information stored in the storage means in response to the instruction, and the setting stored in the storage means Setting information transmission means for transmitting information to the external apparatus by wireless communication during a period in which no audio signal is transmitted by the transmission means; Providing a communication apparatus characterized.

  In another preferred embodiment, the acquisition means for acquiring the audio signal, the transmission means for transmitting the audio signal acquired by the acquisition means to the external device by wireless communication, and acquired by the acquisition means Signal processing means for performing signal processing on the audio signal according to setting information stored in the storage means and outputting the signal is further provided.

  In addition, the present invention includes the audio signal processing device described above and the communication device described above, and the audio signal processing device receives the audio signal and the setting information from the communication device by wireless communication. An audio system is provided.

  According to the present invention, it is possible to provide an audio signal processing device, a speaker device, a video display device, a communication device, and an audio system that allow a user to easily recognize a control value even in remote control.

  Hereinafter, an embodiment of the present invention will be described.

<Embodiment>
The audio system 1 according to the embodiment of the present invention includes a speaker device 10 and a communication device 20 as shown in FIG. FIG. 1 is an explanatory diagram showing the configuration of the audio system 1. The communication device 20 is a portable audio device 21 and a communication module 25 connected to each other, and wireless communication is performed between the communication module 25 of the communication device 20 and the communication unit 150 of the speaker device 10. Hereinafter, configurations of the speaker device 10 and the communication device 20 will be described in order with reference to FIGS. 2 and 3. FIG. 2 is a block diagram illustrating a configuration of the speaker device 10. FIG. 3 is a block diagram illustrating a configuration of the communication device 20.

  As shown in FIG. 2, the speaker device 10 includes an audio signal processing device 100 and a sound emitting unit 120. The audio signal processing apparatus 100 includes a control unit 101, a power supply unit 102, an amplification unit 103, an operation unit 110, a storage unit 111, and a communication unit 150. The communication unit 150 includes a wireless communication unit 151 and a communication control unit 152 that operate upon receiving power supply.

  The wireless communication unit 151 establishes wireless communication at the physical level by searching for the communication device 20 that exists within the communication range corresponding to the intensity of the output radio wave (hereinafter, establishment of wireless communication is establishment at the physical level). Then, communication is performed with the communication device 20 that has established wireless communication under the control of the communication control unit 152. In addition, when the communication control unit 152 is controlled to connect to the communication device 20 as described later, the encoded audio signal Sin transmitted from the communication device 20 is received during the connected state. An audio signal Sin (in this example, stereo 2 channels) obtained by decoding is output.

  Similarly, in a period in which the speaker device 10 and the communication device 20 are in a connected state, the wireless communication unit 151 performs signal processing parameters (in this example, volume values (0, 1, 2,..., 255). The control signal Sc including the setting information indicating)) is also received and acquired from the communication device 20, and the acquired control signal Sc is output. That is, the state in which the speaker device 10 and the communication device 20 are connected is a state in which the audio signal Sin and the control signal Sc transmitted from the communication device 20 can be received and acquired by the speaker device 10. At this time, the channel through which the control signal Sc is communicated and the channel through which the audio signal Sin is communicated are the same channel (different frequency). Unlike the audio signal Sin, occupying another channel for the control signal Sc that is less frequently used is not preferable because the use efficiency of that channel deteriorates. Therefore, mixing in the channel reserved for the audio signal Sin and finding the gap of the audio signal Sin to be communicated and communicating the control signal Sc is more effective than providing another channel for the control signal Sc. Efficiency is good. In this example, the audio signal Sin is communicated at a predetermined interval, and the control signal Sc is communicated during a period in which the audio signal Sin is not communicated.

  In addition, the wireless communication unit 151 transmits a feedback signal Sf output from the control unit 101 to the communication device 20. As will be described later, the feedback signal Sf includes setting information indicating a volume value changed by operating the speaker device 10. The channel through which the feedback signal Sf is communicated may be the same channel as the channel through which the control signal Sc is communicated.

  The communication control unit 152 controls communication of the wireless communication unit 151. This control is performed, for example, by outputting a signal indicating the control content from the communication control unit 152 to the wireless communication unit 151. The communication control unit 152 performs control so that signals are transmitted / received to / from the communication device 20 in which wireless communication is established at the physical level by the wireless communication unit 151. As a result, when a predetermined connection condition is satisfied, the communication device The wireless communication unit 151 is controlled to start the connection with the wireless communication unit 20. Further, when the communication control unit 152 is in a connection state with the communication device 20 and satisfies a preset disconnection condition, the communication control unit 152 disconnects the connection and ends the connection. The connection condition and disconnection condition will be described later.

  Further, the communication control unit 152 outputs connection information indicating a connection status with the communication device 20 to the control unit 101. Thereby, the control part 101 can recognize whether the speaker apparatus 10 and the communication apparatus 20 are connected by radio | wireless communication. Note that the communication control unit 152 may change the communication range by changing the intensity of the radio wave output from the wireless communication unit 151 in accordance with an operation of an operation unit (not shown).

  The power supply unit 102 is a power source that supplies power to the amplification unit 103, and the start and stop of power supply are controlled by the control unit 101. Note that the power supply destination is not limited to the amplifying unit 103 and may include a processing circuit (not shown) (for example, a circuit that performs acoustic processing on the audio signal). Of these, the power supply unit 102 is controlled regardless of whether the power supply unit 102 starts or stops supplying power to the amplification unit 103. The power to be supplied may be generated inside the apparatus by having a battery or the like inside the apparatus, or may be taken from outside the apparatus using an outlet or the like. For example, if the outlet is connected to a power strip outside the apparatus and power is supplied, power is always supplied to the communication unit 150 and the control unit 101 that controls the power supply unit 102. You may do it. In addition, the supply of power to the communication unit 150 is not limited to the supply from the power supply unit 102, and may be supplied from a power supply unit provided separately from the power supply unit 102.

  When receiving the power supply from the power supply unit 102, the amplifying unit 103 is activated and initialized, and sets the input audio signal, that is, the audio signal Sin output from the wireless communication unit 151, to the control unit 101. The signal is amplified with the amplification factor and output as an audio signal Sout. It should be noted that, immediately after receiving power supply from the power supply unit 102 under the control of the control unit 101, a larger second amplification factor (a volume value described later) is obtained from the first amplification factor over a preset time. The amplification factor of the amplifying unit 103 may be set so as to gradually change to an amplification factor according to

  As shown in FIG. 1, the operation unit 110 includes operation elements 110 </ b> A and 110 </ b> B. When the operation elements 110 </ b> A and 110 </ b> B are operated, the operation unit 110 outputs an operation signal indicating the operated operation element to the control unit 101. In this example, the operation element 110A is an operation element that instructs a change to decrease the volume value by “1”, and the operation element 110B is an operation element that instructs a change to increase the volume value by “1”. The operation element is not limited to such an operation element, and may be a rotary encoder, a keyboard capable of inputting numerical values, or the like.

  The storage unit 111 is a storage unit such as a nonvolatile memory, and stores setting information indicating a volume value.

  The control unit 101 recognizes the connection state with the communication device 20 based on the connection information from the communication control unit 152, and when the wireless communication between the speaker device 10 and the communication device 20 is started, the power supply unit 102 Control is performed so that power supply to the amplification unit 103 is started. On the other hand, when the connection between the speaker device 10 and the communication device 20 is disconnected, the control unit 101 performs control so that the supply of power from the power supply unit 102 to the amplification unit 103 is stopped. In other words, in this example, power is supplied from the power supply unit 102 to the amplification unit 103 during a period from the start of connection to the communication device 20 until disconnection, and power supply is stopped during other periods. These controls are performed, for example, by outputting a signal indicating control contents from the control unit 101 to the power supply unit 102.

  Here, the timing at which power supply from the power supply unit 102 to the amplification unit 103 is started, which is controlled by the control unit 101, is the same as the timing at which connection between the speaker device 10 and the communication device 20 via wireless communication is started. Alternatively, the supply of electric power may be started after elapse of a preset time from the timing when the connection is started. On the other hand, the timing for stopping the supply of power may be the same as the timing at which the connection between the speaker device 10 and the communication device 20 through wireless communication is disconnected, or is set in advance from the timing at which the connection is disconnected. The supply of power may be stopped after a lapse of time.

  Furthermore, when the control unit 101 acquires the control signal Sc from the wireless communication unit 151, the control unit 101 sets the volume value of the setting information stored in the storage unit 111 so that the volume value indicated by the setting information included in the control signal Sc is obtained. Update.

  Further, when the control unit 101 acquires the operation signal from the operation unit 110, the control unit 101 updates the volume value of the setting information stored in the storage unit 111 according to the operation signal. That is, if the acquired operation signal indicates the operation element 110A, the control unit 101 decreases the volume value of the setting information stored in the storage unit 111 by “1”, and the acquired operation signal becomes the operation element 110B. Is updated by increasing the volume value of the setting information stored in the storage unit 111 by “1”. At this time, the increase / decrease amount may be changed according to the volume value of the setting information stored in the storage unit 111. For example, when the volume value is “0” to “122”, it may be increased or decreased by “1”, and when it is “123” to “255”, it may be increased or decreased by “5”.

  Then, the control unit 101 sets an amplification factor for the amplification unit 103 according to the volume value indicated by the setting information stored in the storage unit 111. Further, the control unit 101 outputs a feedback signal Sf including setting information stored in the storage unit 111 to the wireless communication unit 151. Here, the output of the feedback signal Sf is performed in response to an inquiry about a state change from the communication device 20, as will be described later.

  The sound emitting unit 120 includes speakers for the L channel and the R channel, and emits the signal of each channel of the audio signal Sout output from the amplifying unit 103 from the speaker for each channel. The above is the description of the configuration of the speaker device 10.

  Next, the configuration of the communication device 20 will be described. The communication device 20 includes a portable audio device 21 and a communication module 25 as shown in FIG. The portable audio device 21 includes a control unit 211, a storage unit 212, an operation unit 213, a display unit 214, an audio output unit 215, and an interface 216, which are connected via a bus 210, and are not shown. Battery). The communication module 25 includes an interface 251, a wireless communication unit 252, and a communication control unit 253.

  The portable audio device 21 and the communication module 25 are connected by interfaces 251 and 216. In this example, the communication module 25 is supplied with power from the power supply unit (not shown) of the portable audio device 21 via the interfaces 251 and 216 by connection with the portable audio device 21. Therefore, when the communication module 25 is detached from the portable audio device 21 and the connection is released, the function of each part of the communication module 25 is stopped. Note that the communication module 25 may include a battery that supplies power to each unit inside the communication module 25.

  The control unit 211 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU controls each part of the portable audio device 21 via the bus 210 by reading the control program from the ROM into the RAM and executing it. The details of control in the control unit 211 will be described later.

  The storage unit 212 is a large-capacity storage unit such as a hard disk or a nonvolatile memory, and stores data indicating an audio signal and a video signal. Also, setting information indicating the volume value is stored.

  The operation unit 213 includes an operation element for a user to perform an operation. When the user operates the operation unit 15, an operation signal indicating the operation content is output to the control unit 211. In this example, the operation element has an operation element that can be rotated, and the clockwise rotation of the operation element when the display unit 214 displays according to the setting information as described later is as follows. A change for increasing the volume value is instructed, and a counterclockwise rotation indicates a change for decreasing the volume value.

  The display unit 214 is a display device such as a liquid crystal display that displays video, and performs display in accordance with a video signal and an image signal input by the control of the control unit 211.

  The audio output unit 215 has a connection terminal for connecting sound emission means such as headphones, and supplies an audio signal input by the control of the control unit 211 to the connected sound emission means.

  The interface 216 is a connection terminal for connecting to an external device and inputting / outputting various data. In this example, the communication module 25 is connected to the interface 216, and the audio signal Sin and the control signal Sc are output to the connected communication module 25 under the control of the control unit 211. The interface 216 receives a feedback signal Sf from the connected communication module 25 and outputs the feedback signal Sf to the control unit 211.

  For example, the control unit 211 reads out and reproduces data indicating the audio signal stored in the storage unit 212 in accordance with the selection and reproduction operation by the user of the operation unit 213, for example, 16-bit 48 kHz sampling × 2 ch audio signal It is output to the audio output unit 215 and the interface 216 as Sin. In addition, when the setting information is updated, that is, when the user operates the operation unit 213, the control unit 211 outputs a control signal Sc including the setting information stored in the storage unit 212 to the interface 216. . Further, the control unit 211 may output the control signal Sc including the setting information stored in the storage unit 212 even when the communication device 20 and the speaker device 10 are connected.

  At this time, the control unit 211 acquires information indicating whether or not the speaker device 10 and the communication device 20 are in the connected state from the communication control unit 253, and outputs the audio signal Sin to the audio output unit 215 in the connected state. Or the output of the audio signal Sin and the control signal Sc to the interface 216 may be stopped when the connection state is not established. When outputting the audio signal Sin to the audio output unit 215, the control unit 211 may adjust the output level of the audio signal Sin according to the volume value indicated by the setting information stored in the storage unit 212. However, the output level of the audio signal Sin output to the interface 216 is not adjusted. This is because sound quality degradation such as keeping the SN ratio high can be reduced by not adjusting the output level of the audio signal Sin before transmission to the speaker device 10.

  In addition, the control unit 211 generates an image signal indicating an image corresponding to the volume value indicated by the setting information stored in the storage unit 212 and outputs the image signal to the display unit 214, thereby causing the display unit 214 to respond to the setting information. Display. This display is performed, for example, by representing the volume value indicated by the setting information as shown in FIG. 1 and the volume value as a bar graph.

  Further, when acquiring the feedback signal Sf from the interface 216, the control unit 211 updates the volume value of the setting information stored in the storage unit 212 in accordance with the setting information included in the feedback signal Sf.

  In addition, the control unit 211 displays the volume value indicated by the setting information stored in the storage unit 212 in accordance with the operation signal acquired from the operation unit 213 when the display unit 214 performs display according to the setting information. Update as you increase or decrease. That is, if the acquired operation signal indicates clockwise rotation, the control unit 211 increases the volume value of the setting information stored in the storage unit 212, and the acquired operation signal rotates counterclockwise. Is updated by decreasing the volume value of the setting information stored in the storage unit 111. Here, the amount of increase or decrease of the volume value may be determined according to the amount of rotation of the operation element, and the volume value may be changed by “1” for each preset rotation angle. . Then, the control signal Sc may be output every time the volume value changes.

  When the volume value indicated by the setting information stored in the storage unit 212 is updated in this way, the display on the display unit 214 changes in accordance with the update. For example, when the volume value displayed on the display unit 214 is 135 and the volume value is updated so as to decrease by “1”, the volume value indicated by the setting information stored in the storage unit 212 is “135. To “134”, the volume value displayed on the display unit 214 also changes to “134”.

  The interface 251 is a connection terminal for connecting to an external device and inputting / outputting various data. In this example, the portable audio device 21 is connected to the interface 251, and the audio signal Sin and the control signal Sc output from the interface 216 of the portable audio device 21 are output to the wireless communication unit 252. Further, the interface 251 outputs the feedback signal Sf output from the wireless communication unit 252 to the interface 216 of the portable audio device 21.

  The wireless communication unit 252 searches for the speaker device 10 existing within the communication range corresponding to the strength of the output radio wave, establishes wireless communication at a physical level, and the communication control unit 253 with the speaker device 10 that has established wireless communication. Communication is performed under control. When the connection between the speaker device 10 and the communication device 20 is started by wireless communication with the wireless communication unit 151 of the speaker device 10 as described above, the wireless communication unit 252 is in a period until the connection is disconnected. The audio signal Sin output from the interface 251 is encoded and transmitted to the speaker device 10.

  Here, the transmission of the audio signal Sin may be performed only when the speaker device 10 and the communication device 20 are in the connected state, or the audio signal Sin is transmitted regardless of the connected state, and the connected state. If not, the audio signal Sin may not be acquired in the speaker device 10.

  Similarly, in a period in which the speaker device 10 and the communication device 20 are in a connected state, the wireless communication unit 252 also transmits a control signal Sc output from the interface 251 to the speaker device 10. Further, the wireless communication unit 252 receives the feedback signal Sf from the speaker device 10 and outputs it to the interface 251.

  The communication control unit 253 controls communication of the wireless communication unit 252. This control is performed by, for example, outputting a signal indicating the control content from the communication control unit 253 to the wireless communication unit 252. The communication control unit 253 performs control so as to transmit and receive signals to and from the speaker device 10 for which wireless communication has been established at the physical level by the wireless communication unit 252, and as a result, in the same manner as the communication control unit 152 of the speaker device 10, When the set connection condition is satisfied, the wireless communication unit 252 is controlled to start connection with the speaker device 10. Further, when the communication control unit 253 is in a connection state with the speaker device 10 and satisfies a preset disconnection condition, the communication control unit 253 disconnects the connection and ends the connection. Note that the communication control unit 253 may change the communication range by changing the intensity of the radio wave output from the wireless communication unit 252 according to an operation of an operation unit (not shown). The above is the description of the configuration of the communication device 20.

  Next, operations of the speaker device 10 and the communication device 20 in the audio system 1 will be described with reference to FIGS. 4 and 5. FIG. 4 is an explanatory diagram of wireless communication between the speaker device 10 and the communication device 20. FIG. 5 is an explanatory diagram of the operation of the speaker device 10 and the communication device 20 when the speaker device 10 and the communication device 20 are connected by wireless communication.

  Here, the speaker device 10 is installed in advance and the communication device 20 is carried by the user. After the user enters the communication range from outside the communication range of the speaker device 10, the operation unit 213 is operated. Assume that the user is instructed to change the volume value and moves away from the communication range. In the portable audio device 21 of the communication device 20, it is assumed that an audio signal is reproduced by a user operation. The wireless communication performed between the speaker device 10 and the communication device 20 in this case will be described.

  As shown in FIG. 4, first, in a state where the speaker device 10 and the communication device 20 are outside the communication range, a communication partner that can establish wireless communication with each other is searched. At this time, power is not supplied to the amplification unit 103 of the speaker device 10. When the user moves and the communication device 20 enters the communication range of the speaker device 10, the speaker device 10 and the communication device 20 detect a communication partner, and the wireless communication unit 151 and the communication device of the speaker device 10 are detected. The 20 wireless communication units 252 establish wireless communication with each other at the physical level.

  When the wireless communication is established, the wireless communication unit 151 controls the communication control unit 152 of the speaker device 10 so that the wireless communication unit 151 requests the connection with the communication device 20 and the identification information for identifying the own device (for example, device ID, A connection request signal including a group ID, product information, manufacturer information, and the like is transmitted to the communication device 20. The speaker device 10 transmits a connection request signal and waits for a determination as to whether or not the connection condition is satisfied. In this example, the connection condition is that the speaker device 10 receives a connection response signal indicating connection permission transmitted from the communication device 20 in response to the connection request signal.

  When the communication device 20 receives the connection request signal transmitted from the speaker device 10 by the wireless communication unit 252, the communication control unit 253 evaluates the identification information and determines whether to connect to the speaker device 10. The determination based on the evaluation of the identification information may be performed as follows, for example. The identification information in the speaker device 10 is defined as a group ID (for example, groups 1, 2, and 3), and this group ID can be set by operating means (not shown) such as a DIP switch. On the other hand, in the communication module 25 of the communication device 20, similarly, the group ID of the communication module 25 can be set by operating means (not shown) such as a DIP switch.

  In such a configuration of the speaker device 10 and the communication device 20, when the connection request signal including identification information indicating the group ID transmitted from the speaker device 10 is received by the wireless communication unit 252 of the communication device 20, the communication control unit 253. May determine whether the group ID indicated by the identification information matches the group ID set in the communication module 25. In this way, since a pair of connectable speaker device 10 and communication device 20 can be easily set, when a plurality of speaker devices 10 are installed, the group ID of each speaker device 10 is set. By setting, the speaker device 10 connected to the communication device 20 by wireless communication can be easily set.

  When the communication device 20 determines to connect to the speaker device 10, the communication device 20 transmits a connection response signal indicating connection permission to the speaker device 10. Further, when it is determined that the speaker device 10 is not connected, a connection response signal may not be transmitted, or a connection response signal indicating that connection is not permitted may be transmitted.

  When the communication control unit 152 of the speaker device 10 receives a connection response signal indicating connection permission by the wireless communication unit 151, the communication control unit 152 determines that the connection condition described above is satisfied, and connects the speaker device 10 and the communication device 20 by wireless communication. Start and connect. As a result, the audio signal Sin, the control signal Sc, and the feedback signal Sf can be transmitted and received between the speaker device 10 and the communication device 20. In addition, the control unit 101 supplies power from the power supply unit 102 to the amplification unit 103.

  Here, the communication control unit 152 of the speaker device 10 continues to determine the connection condition for a certain period, but when the connection response signal indicating connection permission is not received by the wireless communication unit 151 within the period, A communication device capable of establishing wireless communication by searching for whether or not another communication device 20 exists within the communication range by maintaining a state in which wireless communication is established without performing connection with the communication device 20 If 20 exists, the connection with the communication device 20 is attempted as described above. A search is started to determine whether another communication device 20 exists within the communication range.

  Next, the operation of the speaker device 10 and the communication device 20 after the connection by the wireless communication between the speaker device 10 and the communication device 20 is started will be described with reference to FIG. When the control unit 101 of the speaker device 10 supplies power from the power supply unit 102 to the amplification unit 103, the control unit 101 sets an amplification factor in the amplification unit 103 according to the volume value indicated by the setting information stored in the storage unit 111. . After the amplification factor is set, the amplification unit 103 starts amplification processing of the input audio signal Sin and output to the sound emission unit 120. Here, the setting information stored in the storage unit 111 is updated according to the setting information included in the first control signal Sc transmitted from the communication device 20. As shown in the figure, the first control signal Sc may be a control signal Sc transmitted from the communication device 20 after the start of connection, or may be transmitted when the operation unit 213 of the communication device 20 is operated. Control signal Sc may be used. Thereby, the audio signal Sin reproduced in the portable audio device 21 is emitted from the sound emitting unit 120 of the speaker device 10 at a volume corresponding to the volume value indicated by the setting information.

  Thereafter, the communication device 20 attempts to receive the feedback signal Sf by making an inquiry to poll the setting information related to the speaker device 10 at a predetermined interval. Specifically, it is performed as follows. First, the communication device 20 transmits an inquiry signal indicating whether the setting information has been updated from the previous inquiry by the operation of the operation unit 110 from the wireless communication unit 252 to the speaker device 10 under the control of the communication control unit 253. . When the inquiry signal is received by the speaker device 10, the control unit 101 of the speaker device 10 is stored in the storage unit 111 by the operation of the operation unit 110 between the reception of the previous inquiry signal and the current inquiry signal. If the updated setting information is updated, a response signal indicating that is output to the wireless communication unit 151 to be transmitted to the communication apparatus 20.

  When the communication device 20 receives the response signal, the wireless communication unit 252 transmits a transmission request signal indicating a request for transmitting the setting information related to the speaker device 10 to the speaker device 10 under the control of the communication control unit 253. When the transmission request signal is received by the speaker device 10, the control unit 101 of the speaker device 10 reads the setting information stored in the storage unit 111 and sends a feedback signal Sf including the setting information to the wireless communication unit 151. To be transmitted to the communication device 20. As described above, when the operation unit 110 of the speaker device 10 is operated, the communication device 20 receives the feedback signal Sf in response to a polling inquiry performed at a predetermined interval. This is merely an example, and the feedback signal Sf may be output in response to the inquiry signal regardless of whether or not the operation unit 110 is operated.

  Returning to the description of FIG. After the audio signal Sin is emitted from the sound emitting unit 120 of the speaker device 10, when the user operates the operation unit 110 of the speaker device 10 to instruct a change in the volume value, the control unit 101 displays the storage unit. The volume value indicated by the setting information stored in 111 is updated so as to be a volume value corresponding to the instruction. In addition, the control unit 101 sets an amplification factor in the amplification unit 103 according to the updated volume value. Thereby, the volume of the audio signal Sin emitted from the sound emitting unit 120 changes. In addition, the control unit 101 outputs a feedback signal Sf including setting information indicating the updated volume value to the wireless communication unit 151 in response to a polling inquiry from the communication device 20 and causes the communication device 20 to transmit the feedback signal Sf.

  When the communication device 20 receives the feedback signal Sf, the control unit 211 changes the volume value indicated by the setting information stored in the storage unit 212 of the communication device 20 to the volume value indicated by the setting information included in the feedback signal Sf. Update as follows. Thereby, the display according to the volume value indicated by the updated setting information is displayed on the display unit 214 under the control of the control unit 211, and the user operates the operation unit 110 of the speaker device 10 and stores it in the storage unit 111. Even if the volume value indicated by the setting information, that is, the current volume value in the speaker device 10 changes, the changed volume value can be recognized by the display on the display unit 214 of the communication device 20.

  Next, when the user operates the operation unit 213 of the communication apparatus 20 and instructs to change the volume value, the control unit 211 uses the volume value indicated by the setting information stored in the storage unit 212 as an instruction. Update the volume value to match. In addition, the control unit 211 outputs a control signal Sc including setting information indicating the updated volume value to the communication module 25 to be transmitted to the speaker device 10. At this time, the user can operate the operation unit 213 while confirming that the display of the volume value on the display unit 214 changes according to the operation of the operation unit 213. Can be specified accurately.

  When the speaker device 10 receives the control signal Sc, the control unit 101 changes the volume value indicated by the setting information stored in the storage unit 111 of the speaker device 10 to the volume value indicated by the setting information included in the control signal Sc. Update to be. In addition, the control unit 101 sets an amplification factor in the amplification unit 103 according to the updated volume value. Thereby, the volume of the audio signal Sin emitted from the sound emitting unit 120 changes.

  As described above, the audio signal Sin reproduced in the portable audio device 21 is emitted from the sound emitting unit 120 of the speaker device 10 at a volume corresponding to the volume value indicated by the setting information. The volume value can be changed by operating the operation unit 213 of the communication device 20 or the operation unit 110 of the speaker device 10. In either operation, the volume value can be changed on the display unit 214 of the communication device 20. The display according to the current volume value can be made later. That is, it is possible to synchronize the volume value that specifies the amplification factor to be set in the amplification unit 103 in the speaker device 10 and the volume value that specifies the display content of the display unit 214 in the communication device 20.

  In addition, when the speaker device 10 starts connection with the communication device 20, the speaker device 10 continues to determine whether or not the disconnection condition is satisfied. In this example, the disconnection condition is that the communication device 20 moves out of the communication range or the communication module 25 is removed from the portable audio device 21 so that wireless communication cannot be established.

  If the user carrying the communication device 20 further moves and moves outside the communication range of the speaker device 10, wireless communication between the speaker device 10 and the communication device 20 cannot be established, and the communication control unit 152 of the speaker device 10, communication The communication control unit 253 of the device 20 determines that the disconnection condition described above is satisfied, and disconnects the connection between the speaker device 10 and the communication device 20. Then, the control unit 101 of the speaker device 10 stops the power supply from the power supply unit 102 to the amplification unit 103, and the wireless communication unit 252 does not acquire the audio signal Sin. Sound emission from the sound emission unit 120 stops.

  Thus, in the audio system 1 according to the embodiment of the present invention, when the user carrying the communication device 20 moves into the communication range of the speaker device 10, the speaker device 10 and the communication device 20 are wirelessly communicated. The audio signal Sin reproduced in the portable audio device 21 of the communication device 20 is emitted from the sound emitting unit 120 of the speaker device 10 connected. At this time, the user can change the volume of the audio signal Sin to be emitted by changing the volume value by operating the operation unit 213 of the communication device 20 or the operation unit 110 of the speaker device 10. In either case, since the display unit 214 of the communication device 20 displays according to the changed current volume value, the current communication device 20 can easily recognize the current volume value. it can.

  As mentioned above, although embodiment of this invention was described, this invention can be implemented in various aspects as follows.

<Modification 1>
In the embodiment described above, the volume value indicated by the setting information stored in the storage unit 111 of the speaker device 10 and the volume value indicated by the setting information stored in the storage unit 212 of the communication device 20 are the same. Both values range from “0” to “255”, but they may be different. For example, in the communication device 20, the volume value is designated in 256 steps from “0” to “255”, and in the speaker device 10, the volume value is designated in 52 steps from “0” to “51”. Also good.

  In this case, the control unit 101 of the speaker device 10 stores a conversion table indicating the relationship between reception parameters and conversion parameters as shown in FIG. When the control unit 101 acquires the control signal Sc received from the communication device 20, the control unit 101 refers to the conversion table, treats the volume value indicated by the setting information included in the control signal Sc as a reception parameter, and sets the corresponding conversion parameter. The volume value indicated by the setting information stored in the storage unit 111 is updated so that the indicated volume value is obtained.

  On the other hand, when the control unit 101 acquires an operation signal by operating the operation unit 110, the volume value indicated by the setting information stored in the storage unit 111 is updated according to the operation signal, as in the embodiment. Then, the control unit 101 treats the volume value indicated by the setting information stored in the storage unit 111 as a conversion parameter, and recognizes the volume value indicated by the corresponding reception parameter as the volume value indicated by the setting value of the feedback signal Sf.

  Here, when the conversion parameter is “2”, the volume value indicated by the corresponding reception parameter is a plurality of volume values indicated by the corresponding reception parameter, as in the case where the volume value is indicated by “6” to “10”. Is set in advance so that one of the values is selected. In this example, a median value “8” from “6” to “10” is selected. . Note that this selection may be set so as to be changed depending on the update mode. That is, when the control unit 101 is updated to increase the volume value indicated by the setting information stored in the storage unit 111 in response to the operation signal, for example, the lowest value (“6” in the above example) is set. When selected and updated to decrease the volume value, for example, the maximum value (“10” in the above example) may be selected.

  In this way, even when the range and step in which the change of the volume value in the operation unit 213 of the communication device 20 can be instructed is different from the range and step in which the change of the volume value in the operation unit 110 of the speaker device 10 can be instructed. The user can give an instruction to change the volume value by an operation without feeling uncomfortable.

<Modification 2>
In the above-described embodiment, the audio signal Sin is transmitted from the communication device 20 to the speaker device 10 and is acquired by receiving the audio signal Sin by the wireless communication unit 151 of the speaker device 10. However, the audio signal Sin is acquired. May be performed by another method. In this case, as shown in FIG. 7, the speaker device 10 </ b> A including the audio signal processing device 100 </ b> A having the input unit 105 that acquires an audio signal and inputs the audio signal to the amplification unit 103 may be used. The input unit 105 may have an input terminal to which the audio signal Sin is input, and may acquire the audio signal Sin input from the input terminal, or a musical sound generating means (not used) for generating the audio signal Sin. In this case, the audio signal Sin may be acquired from the musical sound generating means.

  In this way, the portable audio device 21 of the communication device 20 does not need to output the audio signal Sin, and when the user carrying the communication device 20 has moved within the communication range of the speaker device 10, The audio signal Sin acquired by the input unit 105 of the speaker device 10 is emitted from the sound emitting unit 120. In this case, the user can use the communication device 20 like a remote control that can change the sound volume to be emitted.

<Modification 3>
In the embodiment described above, the speaker device 10 that emits the audio signal Sin is used. However, as shown in FIG. 8, the speaker device 10 may be a video display device 10B such as a television that further includes a display unit 130. Hereinafter, the configuration of the video display device 10B will be described.

  The display unit 130 has a display screen such as a liquid crystal display or an organic EL display. When power is supplied from the power supply unit 102, the display unit 130 displays on the display screen according to the input video signal. When the control unit 101 controls the power supply unit 102 to start and stop the supply of power to the amplification unit 103, the control unit 101 similarly starts and stops the supply of power to the display unit 130. That is, when the video display device 10B and the communication device 20 are connected, power is supplied to the display unit 130. In addition, the control unit 101 outputs a video signal Gf indicating a video corresponding to the volume value indicated by the setting information stored in the storage unit 111 (for example, a video displayed with a numerical value indicating the volume value) to the display unit 130. . The period for outputting the video signal Gf may be a certain period after the volume value indicated by the setting information stored in the storage unit 111 is updated, for example.

  Then, the wireless communication unit 151 acquires the video signal Gin from the communication device 20 together with the audio signal Sin, and outputs the video signal Gin to the display unit 130. When the display unit 130 acquires the video signal Gin and the video signal Gf, the display unit 130 performs display according to these signals. For example, the display corresponding to the video corresponding to the video signal Gin is superimposed on the video corresponding to the video signal Gf.

  In addition, the storage unit 212 of the communication device 20 stores data indicating a video signal together with data indicating an audio signal. When reading the data indicating the audio signal, the control unit 211 of the communication device 20 also reads and reproduces the data indicating the video signal, and outputs it to the display unit 214 and the interface 216 as the video signal Gin. Thereby, the video signal Gin is transmitted from the wireless communication unit 252 together with the audio signal Sin. At this time, the control unit 211 acquires information indicating whether or not the video display device 10B and the communication device 20 are in the connected state from the communication control unit 253, and outputs the video signal Gin to the display unit 214 in the connected state. The video signal Gin to the interface 216 may be stopped when not connected. Other configurations are the same as those in the embodiment, and thus the description thereof is omitted.

  As described above, the present invention can be applied not only to an audio device that emits sound like the speaker device 10 but also to a display device that displays an image such as the image display device 10B.

<Modification 4>
In the embodiment described above, the speaker device 10 includes the audio signal processing device 100, and the amplification unit 103 of the audio signal processing device 100 amplifies the audio signal Sin at an amplification factor according to the volume value indicated by the setting information. However, the signal processing unit is not limited to the amplification unit 103, and performs signal processing (for example, equalizing processing, reverberation processing, etc.) on the audio signal Sin according to the parameter indicated by the setting information when receiving power supply. There may be. For example, when performing equalizing processing as signal processing, the parameter indicated by the setting information only needs to indicate frequency characteristics, and when performing reverberation processing, the parameter indicated by the setting information is a reverberation time or the like. I just need it.

<Modification 5>
In the embodiment described above, when the connection between the speaker device 10 and the communication device 20 by wireless communication is started, the volume value indicated by the setting information included in the control signal Sc transmitted from the communication device 20 first is used as a reference. The volume value indicated by the setting information stored in the storage unit 111 of the speaker device 10 is updated so that the volume value becomes the same, but the setting information stored in the storage unit 111 of the speaker device 10 indicates With reference to the volume value (volume value at the time of connection by wireless communication), the feedback signal Sf is transmitted from the speaker device 10 even if no inquiry signal is received, and is stored in the storage unit 212 of the communication device 20. The volume value indicated by the setting information may be updated. In other words, if the correspondence value such that the volume value that specifies the amplification factor to be set in the amplification unit 103 in the speaker device 10 and the volume value that specifies the display content of the display unit 214 in the communication device 20 are synchronized is synchronized. Good.

<Modification 6>
In the embodiment described above, when the wireless communication between the speaker device 10 and the communication device 20 is disconnected, the volume value indicated by the setting information stored in the storage unit 111 of the speaker device 10 is set to a preset volume. It may be updated to a value. Similarly, the volume value indicated by the setting information stored in the storage unit 212 of the communication device 20 may be updated to a preset volume value.

  Here, after the connection by the wireless communication between the speaker device 10 and the communication device 20 is started, before the volume value indicated by the setting information stored in the storage unit 212 of the communication device 20 is first updated. Is stored in the storage unit 212 as initial setting information, and when the wireless communication between the speaker device 10 and the communication device 20 is disconnected, the volume indicated by the setting information stored in the storage unit 212 is stored. The value may be updated to the volume value indicated by the initial setting information. In this way, after the connection by the wireless communication between the speaker device 10 and the communication device 20 is disconnected, the volume value before the start can be easily restored.

<Modification 7>
In the above-described embodiment, when an instruction to change the volume value is issued by operating the operation unit 213 of the communication device 20, the control signal Sc is transmitted and received, and the feedback signal Sf is transmitted by an inquiry polled by the communication device 20. As a result, when the correspondence between the volume value that specifies the amplification factor to be set in the amplification unit 103 in the speaker device 10 and the volume value that specifies the display content of the display unit 214 in the communication device 20 shifts, the control signal Sc The transmission / reception of the feedback signal Sf has been performed, but the transmission / reception timing is not limited to this. For example, while the speaker device 10 and the communication device 20 are connected by wireless communication, the control signal Sc and the feedback signal Sf may be transmitted and received at predetermined intervals.

<Modification 8>
In the embodiment described above, the wireless communication unit 151 of the speaker device 10 is provided with a detection unit that detects the strength of communication radio waves from the communication device 20, and the control unit 101 acquires the detection result and detects the detected communication radio wave intensity. Depending on, the amplification factor set in the amplification unit 103 may be changed. For example, as the detected communication radio wave intensity decreases, the distance between the speaker device 10 and the communication device 20 increases. Therefore, the amplification factor set in the amplifying unit 103 is changed to increase, and the distance is increased. The sound volume heard by the user carrying the communication device 20 may be kept small even when the user is away from the terminal. As described above, the control unit 101 sets the amplification factor for the amplification unit 103 according to the volume value indicated by the setting information stored in the storage unit 111 and the intensity of the communication radio wave detected by the detection unit. You may make it do.

  Note that the communication control unit 152 may determine whether or not to connect using a condition according to the strength of the communication radio wave detected by the detection unit as a connection condition and a disconnection condition. For example, the connection condition may be that the strength of the communication radio wave from the communication device 20 that has established the wireless communication is equal to or higher than a preset threshold value, and the connection condition is less than the preset threshold value. It may be a condition.

  In this way, the communication control unit 152 can increase or decrease the set threshold value in accordance with an operation of an operation unit (not shown) without changing the intensity of the radio communication radio wave, so that the speaker device 10 And the communication device 20 are connected by wireless communication, and the range from the speaker device 10 can be adjusted. If the control signal Sc can be transmitted and received even before the speaker device 10 and the communication device 20 start connection by wireless communication, the threshold value is increased or decreased according to the control signal Sc. You may do it. For example, the threshold value may be decreased as the volume value indicated by the setting information included in the control signal Sc increases, and the distance that the speaker device 10 and the communication device 20 can be connected by wireless communication may be increased.

<Modification 9>
In the embodiment described above, the operation unit 110 of the speaker device 10 instructs the change of the volume value by outputting an operation signal corresponding to the operation to the control unit 101. However, a connection terminal for connecting to an external device is provided. The change of the volume value may be instructed by outputting a signal for instructing the change of the volume value from the external device connected to the connection terminal to the control unit 101. Further, in the case of the configuration of the speaker device 10 as shown in the modification example 2, an external device that outputs the audio signal Sin acquired by the input unit 105 and an external device that outputs a signal instructing to change the volume value May be the same device.

<Modification 10>
In the above-described embodiment, the connection condition for starting connection by wireless communication between the speaker device 10 and the communication device 20 is transmitted from the communication device 20 in response to the connection request signal transmitted from the speaker device 10. However, other conditions may be used. For example, the connection condition may be that wireless communication is established between the speaker device 10 and the communication device 20 without performing transmission / reception of a connection request signal and a connection response signal.

  As another example, it is assumed that the connection relationship between the connection request signal and the connection response signal is reversed, and the communication device 20 transmits the connection request signal and receives it at the speaker device 10, and the speaker device 10 responds to it. Then, the connection response signal may be transmitted and received by the communication device 20. Then, the connection condition may be that the communication device 20 receives a connection response signal indicating connection permission. In this case, the communication control unit 253 of the communication device 20 may determine whether to connect depending on whether the connection condition is satisfied.

  On the other hand, regarding the disconnection condition, not only the wireless communication cannot be established but also other conditions may be used. For example, the disconnection condition may be that the audio signal Sin is not received from the communication device 20 connected by wireless communication for a preset time, for example, 10 minutes. In addition, in the control signal Sc transmitted from the communication device 20, the state of the portable audio device 21 such as information set in advance (for example, the remaining battery level of the portable audio device 21 is equal to or less than a predetermined amount or the sleep mode is entered). It is good also as a cutting condition that the control part 101 detected that the information which shows) was included.

<Modification 11>
In the embodiment described above, when the speaker device 10 and the communication device 20 are connected by wireless communication, the control unit 101 of the speaker device 10 starts supplying power from the power supply unit 102 to the amplification unit 103. However, after the speaker device 10 and the communication device 20 are connected by wireless communication, when the control signal Sc including information on the preset contents is further received from the communication device 20, the control unit 101 The supply of power from the supply unit 102 to the amplification unit 103 may be started.

  Here, the preset content information may indicate a volume value, for example, like the setting information in the embodiment, or playback generated by an operation of playing back an audio signal in the portable audio device 21. It may be information indicating an operation. In this way, even if the speaker device 10 and the communication device 20 are connected, the speaker device 10 is not used until the user performs a preset operation on the operation unit 213 of the portable audio device 21. Therefore, when the user carrying the communication device 20 only passes near the speaker device 10, the sound is not unnecessarily emitted. You can also.

<Modification 12>
In the embodiment described above, the determination based on the evaluation of the identification information in the communication control unit 253 of the communication device 20 is performed based on the group ID set in advance and the group ID indicated by the identification information included in the connection request signal received from the speaker device 10. However, another method may be used. For example, the following may be used.

  For example, the communication control unit 253 stores a list indicating connectable identification information in advance, compares the list with the identification information included in the connection request signal, and if there is matching identification information, Then, if there is no identification information that coincides with the determination, it may be determined that the connection is not established.

  Further, this determination may be performed by the user operating the operation unit 213 to determine whether or not to connect. In this case, the identification information included in the connection request signal is output to the portable audio device 21 via the interfaces 251 and 216, and a display according to the output identification information, for example, wireless communication is established and is a connection candidate. A display for specifying the speaker device 10, for example, a device ID or the like is displayed on the display unit 214. Then, the user confirms this display and operates the operation unit 213 to determine whether or not to connect to the speaker device 10 that is a connection candidate. Information indicating this determination is output to the communication module 25 via the interfaces 216 and 251 so that the communication control unit 253 may determine whether or not to connect to the speaker device 10.

<Modification 13>
In the above-described embodiment, the operation of the communication device 20 in the state where the portable audio device 21 and the communication module 25 are connected has been described, but when the portable audio device 21 and the communication module 25 are not connected. The communication module 25 does not operate, and even if the communication device 20 falls within the communication range of the speaker device 10, wireless communication is not established.

  When the portable audio device 21 and the communication module 25 are connected within the communication range of the speaker device 10, power is supplied from a power supply unit (not shown) in the portable audio device 21, and the wireless communication unit 252 in the communication module 25. Then, the communication control unit 253 starts operation, detects a communicable partner, establishes wireless communication between the speaker device 10 and the communication device 20, and thereafter, in the same manner as in the embodiment, Supply of power to the amplifying unit 103 is started, and the audio signal Sin reproduced by the portable audio device 21 is emitted from the speaker device 10.

  Thereafter, when the communication module 25 is removed from the portable audio device 21 and the mutual connection is released, the communication module 25 does not operate again. Therefore, wireless communication cannot be established, the disconnection condition is satisfied, the supply of power to the amplifying unit 103 of the speaker device 10 is stopped, and the sound emission from the speaker device 10 is stopped. In this way, by connecting and disconnecting the communication module 25 to and from the portable audio device 21, it is possible to perform the power operation of the speaker device 10 by only a sensory operation without any other operation.

It is explanatory drawing which shows the structure of the audio system which concerns on embodiment. It is a block diagram which shows the structure of the speaker apparatus which concerns on embodiment. It is a block diagram which shows the structure of the communication apparatus which concerns on embodiment. It is explanatory drawing of the wireless communication with the speaker apparatus and communication apparatus which concern on embodiment. It is explanatory drawing of the wireless communication at the time of the connection of the speaker apparatus and communication apparatus which concern on embodiment. It is explanatory drawing about the conversion table which concerns on the modification 1. FIG. FIG. 11 is a block diagram showing a configuration of a speaker device according to Modification 2. It is a block diagram which shows the structure of the video display apparatus concerning the modification 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Audio system 10, 10A ... Speaker apparatus, 10B ... Video display apparatus, 20 ... Communication apparatus, 21 ... Portable audio apparatus, 25 ... Communication module, 100, 100A ... Audio signal processing apparatus, 101 ... Control part, 102 ... Power supply unit 103 ... Amplification unit 105 ... Input unit 110 ... Operation unit 110A, 110B ... Operator, 111 ... Storage unit, 120 ... Sound emission unit, 130 ... Display unit, 150 ... Communication unit, 151 ... Wireless Communication unit 152 ... Communication control unit 210 ... Bus 211 ... Control unit 212 ... Storage unit 213 ... Operation unit 214 ... Display unit 215 ... Audio output unit 216 ... Interface, 251 ... Interface, 252 ... Wireless Communication unit, 253 ... Communication control unit

Claims (9)

Receiving means for receiving audio signals from an external device at predetermined intervals by wireless communication;
Storage means for storing setting information indicating signal processing parameters;
Signal processing means for performing signal processing on the audio signal received by the receiving means according to the setting information stored in the storage means and outputting the signal;
Setting information indicating parameters for signal processing; setting information receiving means for receiving wireless communication from the external device during a period in which no audio signal is received by the receiving means;
Instruction means for instructing a change of a parameter indicated by the setting information stored in the storage means;
When setting information is received by the setting information receiving means, a first updating means for updating the setting information stored in the storage means according to the setting information received by the setting information receiving means;
A second update unit that updates the setting information stored in the storage unit in response to the instruction when a change in the parameter indicated by the setting information is instructed by the instruction unit;
An inquiry signal receiving means for receiving an inquiry signal from the external device at predetermined intervals by wireless communication;
When an inquiry signal is received by the inquiry signal receiving means, it is determined whether or not the setting information stored in the storage means has been updated after receiving the previous inquiry signal. A response signal transmitting means for transmitting a response signal to the external device by wireless communication;
A transmission request receiving means for receiving a transmission request signal transmitted from the external device in response to the response signal by wireless communication;
An audio signal comprising: a transmission unit configured to transmit the setting information stored in the storage unit to the external device by wireless communication when a transmission request signal is received by the transmission request reception unit. Processing equipment. The audio signal processing apparatus according to claim 1, wherein the instruction unit instructs a change of a parameter indicated by setting information stored in the storage unit in accordance with an operation of an operator. The parameter indicated by the setting information stored in the storage means is a parameter indicating the amplification factor,
3. The signal processing performed on the audio signal by the signal processing means is signal processing that amplifies at an amplification factor related to setting information stored in the storage means. The audio signal processing apparatus described. Further comprising a detecting means for detecting the strength of communication radio waves from the external device,
The signal processing means performs signal processing on the audio signal received by the receiving means according to the setting information stored in the storage means and the strength of the communication radio wave detected by the detecting means and outputs the signal The audio signal processing device according to any one of claims 1 to 3, wherein The audio signal processing device according to any one of claims 1 to 4,
And a sound emitting means for emitting an audio signal output from the signal processing means. A speaker device according to claim 5;
A display means for displaying on the display screen,
The receiving means further acquires a video signal,
The video display apparatus, wherein the display unit performs display according to the video signal acquired by the receiving unit and the setting information stored in the storage unit. An acquisition means for acquiring an audio signal;
Transmitting means for transmitting the audio signal acquired by the acquiring means to the external device at predetermined intervals by wireless communication;
Storage means for storing setting information indicating signal processing parameters;
Inquiry signal transmission means for transmitting an inquiry signal to the external device at predetermined intervals by wireless communication;
A response signal receiving means for receiving, by wireless communication, a response signal transmitted from the external device when the setting information stored in the external device is updated after receiving the previous inquiry signal;
When a response signal is received by the response signal receiving means, a transmission request signal transmitting means for transmitting a transmission request signal to the external device by wireless communication;
Receiving means for receiving setting information indicating signal processing parameters transmitted in response to the transmission request signal from the external device by wireless communication;
Operation means for instructing a change of a parameter indicated by the setting information stored in the storage means by operation;
Display means for performing display according to the setting information stored in the storage means;
A first updating unit configured to update the setting information stored in the storage unit according to the setting information received by the receiving unit when setting information is received by the receiving unit;
A second updating unit that updates the setting information stored in the storage unit in response to the instruction when a change in the parameter indicated by the setting information is instructed by the operation unit;
A communication apparatus comprising: setting information transmission means for transmitting the setting information stored in the storage means to the external apparatus by wireless communication during a period in which no audio signal is transmitted by the transmission means. . 8. The apparatus according to claim 7, further comprising: a signal processing unit that performs signal processing on the audio signal acquired by the acquisition unit according to setting information stored in the storage unit and outputs the signal. Communication equipment. The audio signal processing device according to any one of claims 1 to 4,
A communication device according to claim 7 or claim 8,
The audio system, wherein the audio signal processing device receives the audio signal and the setting information from the communication device by wireless communication.

Images