KR102015546B1 - Wireless sound converting system - Google Patents

Abstract

The present invention relates to a wireless sound transducing system capable of respectively setting a sink mode and a source mode, and also capable of function conversion between wireless sound transducing devices paired through Bluetooth communication. According to the present invention, the wireless sound transducing system composed of first and second wireless sound transducing devices paired by Bluetooth communication comprises: a first wireless sound transducing device including a first input unit to obtain a mode conversion input, a first communication unit to perform Bluetooth communication, and a first data processor to perform a stored operation mode; and a second wireless sound transducing device including a second communication unit to perform Bluetooth communication and a second data processor performing a stored operation mode different from the operation mode performed by the first data processor. The operation mode is one of the source mode or sink mode. Mode conversion for the operation mode performed by the first data processor is performed according to the mode conversion input from the first input unit. By transmitting a second mode conversion message to the second wireless sound transducing device through the first communication unit, mode conversion in the second wireless sound transducing device is performed.

Description

Wireless acoustic conversion system {WIRELESS SOUND CONVERTING SYSTEM}

The present invention relates to a wireless acoustic conversion system, and in particular, a sink mode and a source mode can be set, and a wireless acoustic conversion system capable of converting functions between paired wireless acoustic conversion devices through Bluetooth communication. It is about.

In recent years, the use of Bluetooth has become commonplace. Bluetooth uses the same ISM band, 2.45GHz frequency as 802.11b / g, which is a wireless LAN standard.Bluetooth devices can perform wireless communication by searching, selecting, and authenticating Bluetooth devices in the vicinity. have.

Bluetooth has begun to be popularized with the addition of the Enhanced Data Rate (EDR) standard at the 2.0 version, which ensures a certain level of communication quality, and as the use of Bluetooth has become more common, the use of mobile devices with Bluetooth functions has become more common. have. In particular, short-range data communication using Bluetooth is becoming common, for example, listening to music wirelessly through Bluetooth communication with a Bluetooth headset.

In order to listen to music wirelessly through a mobile terminal and a Bluetooth headset, a specific profile of Bluetooth is required, which includes an Advanced Audio Distribution Profile (A2DP) and an Audio Video Remote Control Profile (AVRCP). A2DP defines a portable terminal that transmits audio data as a source (SRC) and a Bluetooth headset that receives audio data as a sink (SNK). This profile supports audio data transmission from the source to the sink. AVRCP defines a mobile terminal as a controller (CT), a Bluetooth headset as a target (TG: Target), and the controller commands commands such as FF (FastFoward), REW (Rewind), Play, Pause, and playlist creation. command) is a profile that enables wireless control of audio data playback of a target by sending it to a target.

On the other hand, in the conventional case, the portable terminal stores only the profile related to the operation as a source in A2DP (or the profile related to the operation as a controller in AVRCP), and the Bluetooth speaker device (for example, a Bluetooth headset) is used as a sink in A2DP. Only the profile related to the operation (or the profile related to the operation as a target in the AVRCP) is stored. Therefore, in the related art, the mobile terminal operates only as a device for transmitting audio data (or command), and there is an inconvenience in that it cannot receive and reproduce audio data (or command) from another mobile terminal.

Republic of Korea Patent Publication No. 10-2011-0057968 "Audio playback device of the mobile terminal"

SUMMARY OF THE INVENTION An object of the present invention is to provide a wireless acoustic conversion system capable of setting a sink mode and a source mode, and also capable of converting functions between paired wireless acoustic conversion devices through Bluetooth communication.

The wireless acoustic conversion system including the first and second wireless acoustic conversion devices paired by the Bluetooth communication of the present invention performs a first input unit for acquiring a mode conversion input, a first communication unit for performing Bluetooth communication, and a stored operation mode. A first wireless acoustic conversion device comprising a first data processor, a second communication unit performing Bluetooth communication, and a second data processor performing a stored operation mode different from an operation mode performed by the first data processor. 2 is a wireless acoustic conversion device, the operation mode is one of a source mode and a sink mode, and performs a mode conversion for the operation mode being performed by the first data processor according to the mode conversion input from the first input unit. Transmits the second mode conversion message to the second wireless acoustic conversion device through the first communication unit. The mode conversion in the second wireless acoustic conversion apparatus is performed.

In addition, after receiving the mode conversion message through the second communication unit, the second data processor may convert the operation mode being performed to another operation mode and store the same, and operate in the converted operation mode.

In addition, the first data processor may convert the operation mode being performed to another operation mode and store the same, and operate in the converted operation mode.

Also, the first data processor transmits the first conversion complete message to the second wireless acoustic conversion device through the first communication unit while performing the converted operation mode, or the second data processor performs the second conversion while performing the converted operation mode. Preferably, the completion message is transmitted to the first wireless acoustic conversion apparatus through the second communication unit.

In addition, when the first data processor does not receive the second conversion complete message, it returns to the previously performed operation mode, or when the second data processor does not receive the first conversion complete message, the previously performed operation mode It is preferable to return to.

In addition, the first data processor returns to the operation mode previously performed, and transmits the first return message to the second wireless acoustic conversion apparatus through the first communication unit, or the second data processor returns to the operation mode previously performed. And, it is preferable to transmit the second return message to the first wireless acoustic conversion device through the second communication unit.

Also, when the first data processor receives the second return message while performing the converted operation mode, the second data processor returns to the previously performed operation mode or the first data processor returns to the first operation mode. When receiving a message, it is desirable to return to the previously performed mode of operation.

The present invention can be set in each of a sink mode for receiving and reproducing data (such as a sound source) and a source mode for transmitting data (for a sound source, etc.) in paired wireless acoustic conversion devices. There is an effect to enable the function conversion between the paired wireless acoustic conversion device through.

1 is a block diagram of a wireless acoustic conversion system composed of wireless acoustic conversion devices according to the present invention.
FIG. 2 is a flowchart illustrating a mode conversion process between a sink mode and a source mode in the wireless acoustic conversion system of FIG. 1.

Hereinafter, the present invention will be described in detail with reference to the embodiments and drawings. However, it is not intended to limit the present invention to specific embodiments, but it should be understood to include various modifications, equivalents, and / or alternatives of the embodiments of the present invention. In connection with the description of the drawings, similar reference numerals may be used for similar components.

In this document, expressions such as "have", "may have", "include", or "may contain" include the presence of a corresponding feature (e.g., numerical, functional, operational, or component such as a component). Does not exclude the presence of additional features.

In this document, expressions such as "A or B", "at least one of A or / and B", or "one or more of A or / and B" may include all possible combinations of items listed together. . For example, "A or B", "at least one of A and B", or "at least one of A or B" includes (1) at least one A, (2) at least one B, Or (3) both of cases including at least one A and at least one B.

Expressions such as "first," "second," "first," or "second," as used herein, may modify various components, regardless of order and / or importance, and may modify one component to another. It is used to distinguish a component and does not limit the components. For example, the first user device and the second user device may represent different user devices regardless of the order or importance. For example, without departing from the scope of rights described in this document, the first component may be called a second component, and similarly, the second component may be renamed to the first component.

One component (such as a first component) is "(functionally or communicatively) coupled with / to" to another component (such as a second component) or " When referred to as "connected to", it should be understood that any component may be directly connected to the other component or may be connected through another component (eg, a third component). On the other hand, when a component (e.g., a first component) is said to be "directly connected" or "directly connected" to another component (e.g., a second component), the component and the It may be understood that no other component (eg, a third component) exists between the other components.

The expression "configured to" used in this document is, for example, "suitable for", "having the capacity to" depending on the situation. It may be used interchangeably with "designed to", "adapted to", "made to", or "capable of". The term "configured to" may not necessarily mean only "specifically designed to" in hardware. Instead, in some situations, the expression "device configured to" may mean that the device "can" along with other devices or components. For example, the phrase “processor configured (or set up) to perform A, B, and C” may execute a dedicated processor (eg, an embedded processor) to perform the operation, or one or more software programs stored in a memory device. By doing so, it may mean a general-purpose processor (for example, a CPU or an application processor) capable of performing the corresponding operations.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. The terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Among the terms used in this document, terms defined in the general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless it is clearly defined in this document, in an ideal or excessively formal meaning. Not interpreted. In some cases, even if terms are defined in the specification, they may not be interpreted to exclude embodiments of the present disclosure.

1 is a block diagram of a wireless acoustic conversion system composed of wireless acoustic conversion devices according to the present invention. The wireless acoustic conversion system communicates with the first wireless acoustic conversion device 10 and the first wireless acoustic conversion device 10 via Bluetooth communication, and may be paired by Bluetooth communication. It is composed of

First, the first wireless acoustic conversion apparatus 10 includes a microphone 1 (or a microphone) for acquiring an external sound, a speaker 2 for receiving an electric signal and emitting sound, and an input unit 3 for acquiring a user's input. ), A display unit 4 for visually and / or audibly displaying information to the user, at least a communication unit 5 for performing Bluetooth communication, a power supply unit 6 for supplying necessary power, and the microphone 1 described above. And control the speaker 3, the input unit 3, the display unit 4, and the communication unit 5 to perform a preset or stored operation mode among the sink mode and the source mode, and between the sink mode and the source mode. It consists of a data processor 9 which performs a mode conversion process to enable different modes of operation. However, in the case of the display unit 4 and the power supply unit 6, the description is merely a technique naturally recognized by those skilled in the art to which the present invention belongs, and the description thereof is omitted.

In detail, the microphone 1 obtains an external sound, generates an analog electric signal, and applies it to the data processor 9.

The speaker 2 receives an analog electric signal from the data processor 9 and performs sound emission.

The input unit 3 is configured to acquire a command from a user (for example, a pairing input, a mode conversion input, a mode selection input, etc.) and apply the same to the data processor 9, for example, a push switch, a touch switch, or a toggle. The switch may be implemented in various forms. The pairing input corresponds to an input for performing a pairing operation by searching for another wireless acoustic conversion apparatus that the user can communicate within a communication distance. The mode conversion input corresponds to an input for causing the data processor 9 to perform a mode conversion process in order for the user to convert the current operating mode of the first wireless acoustic conversion device 10 to another operation mode. In addition, the mode selection input corresponds to an input for informing the data processor 9 of an operation mode (eg, sink mode, source mode) selected by the user during the mode conversion process.

The communication unit 5 communicates with the second wireless acoustic conversion device 20 through at least Bluetooth communication, and is provided as a communication module capable of performing pairing, coding and decoding functions.

The data processor 9 controls the pairing operation with the second wireless acoustic conversion device 20 by controlling at least one of the microphone 1, the speaker 3, the input unit 3, the display unit 4, and the communication unit 5. A processor that performs a preset or stored operation mode among a sink mode and a source mode after a pairing operation, and performs a different mode of operation by performing a mode conversion process between the sink mode and the source mode. (E.g., CPU, DSP, etc.) and storage space (e.g., ROM, RAM, etc.) for storing data (e.g., sound source, music, movie, etc.).

Next, the second wireless acoustic transducer 20 is composed of the same or equivalent components as the first wireless acoustic transducer 10. That is, the microphone 11 is the same as the microphone 1, the speaker 2 is the same as the speaker 12, the input unit 13 is the same as the input unit 3, and the display unit 14 is the display unit 4. The communication unit 15 is identical to the communication unit 5, the power supply unit 16 is identical to the power supply unit 6, and the data processor 19 is identical to the data processor 9.

First, the pairing operation and the result process of the operation mode at the pairing operation will be described.

The pairing operation is similar to a pairing operation performed through a general Bluetooth communication, and each of the data processor 9 and the data processor 19 is wireless sound capable of Bluetooth communication according to a pairing input input from each of the input unit 3 and the input unit 13. The converter is searched and paid. Alternatively, the NFC tag is approached to each of the first and second wireless acoustic transducers 10 and 20 to transmit the MAC address embedded in the NFC tag, and each of the data processors 9 and 19 is a communication unit 5. ) And (15) may be used for receiving and storing the pairing method.

During the pairing operation or after the pairing operation is performed, each of the data processor 9 and the data processor 19 determines and stores the operation mode of the sink mode or the operation mode of the source mode according to a predetermined determination criterion. The predetermined decision criterion is that when either one of the data processor 9 and the data processor 19 sets the sink mode as the default operation mode, the other data processor determines and operates as the source mode. On the contrary, when one of the data processor 9 and the data processor 19 sets the source mode to the default operation mode, the other data processor determines to operate in the sink mode. In this case, the data set in the blank operation mode by notifying the mode in which the data processor in which the default operation mode is set is to operate with the data processor set in the blank operation mode (that is, the operation mode other than the default operation mode). The operation mode may be determined as the mode in which the processor should operate.

 Alternatively, the predetermined determination criterion is that when the data processor 9 and the data processor 19 are set to different operation modes as the default operation mode, the data processor 9 and the data processor 19 may have their respective default operation modes (stored as Operation mode).

Next, a mode conversion process performed by each of the first and second wireless acoustic conversion apparatuses 10 and 20 operating in different operation modes is described in detail in FIG. 2.

FIG. 2 is a flowchart illustrating a mode conversion process between a sink mode and a source mode in the wireless acoustic conversion system of FIG. 1. Before the data processor 9 or the data processor 19 receives the mode conversion input, it performs the set or stored operating modes, respectively. In this flowchart, the data processor 9 is operating in the sink mode, the data processor 19 is operating in the source mode, and the data processor 9 obtains the mode conversion input from the input unit 3.

In step S1, it is determined whether the data processor 9 has obtained a mode conversion input from the input unit 3. If the data processor 9 acquires the mode conversion input, the process proceeds to step S3. Otherwise, the data processor 9 operates in the sink mode, which is the operation mode currently being performed, and repeatedly performs the step S1.

In step S3, the data processor 9 starts the conversion mode of the operation mode, generates a mode conversion message and transmits it to the second wireless acoustic conversion device 20 through the communication unit 5. Here, the mode conversion message is a message that causes the second wireless acoustic conversion apparatus 20 to start the conversion mode as the first wireless acoustic conversion apparatus 10 performs the conversion mode.

In step S5, the data processor 9 displays an operation mode (that is, a sink mode) which is a previously stored operation mode and is currently being performed, and receives an operation mode to be converted through the input unit 3. Converts the current operation mode to another operation mode (ie, source mode). The data processor 9 performs step S5 and proceeds to step S7.

In step S7, the data processor 9 stores the converted operating mode in step S5, performs a reboot and starts operating in the converted operating mode (i.e., source mode). The data processor 9 performs step S7 and proceeds to step S9.

In step S9, the data processor 9 transmits the setting completion message to the second wireless acoustic conversion apparatus 20 through the communication unit 5. Here, the conversion complete message corresponds to a message for notifying that the paired first Acoustic Converter 10 has completed the conversion mode.

In step S11, it is determined whether the data processor 9 has received a conversion complete message from the second radio acoustic conversion device 20 through the communication unit 5. However, the data processor 9 repeatedly performs step S11 for a predetermined reference time after performing step S9. Alternatively, since the second wireless acoustic conversion device 20 may have changed the operation mode earlier, the data processor 9 may perform the preset reference time after performing step S9 after step S3. It may be determined whether a conversion complete message is received. If the conversion completion message is received before step S11, the data processor 9 receives and stores the conversion completion message, and when performing step S11, the data processor 9 does not start the step S13 according to the received conversion completion message. Proceed to If a conversion complete message is received before step S11 or at the time of performing step S11, the process proceeds to step S13, otherwise proceeds to step S15.

In step S13, since the operation conversion of the second wireless acoustic conversion device 20 is completed, the data processor 9 continues to operate in the converted operation mode. The data processor 9 proceeds to step S1 while performing the converted operation, and repeatedly performs step S1.

In step S15, the data processor 9 does not receive the conversion completion message from the second wireless acoustic conversion device 20 even though the first wireless acoustic conversion device 10 has completed the conversion of the operation mode. It is determined that the operation mode of the radio acoustic conversion device 20 is not completed (that is, a mode conversion failure). Accordingly, the data processor 9 proceeds to return to the operation mode (i.e., sink mode) before the converted operation mode, saves the previous operation mode, reboots, and starts operation in the previous operation mode. The data processor 9 performs step S15 and proceeds to step S17.

In step S17, the data processor 9 transmits a return message indicating the return to the previous operation mode to the second wireless acoustic conversion device 20 through the communication unit 5 while performing the previous operation mode. . The data processor 9 performs step S17 and proceeds to step S1 while performing the previous operation mode.

Next, in response to the operation of the data processor 9, a process in which the data processor 19 of the second wireless acoustic conversion device 20 performs a conversion mode is described.

In step S21, the data processor 19 receives the mode conversion message from the first wireless acoustic conversion device 10 paired via the communication unit 15 while performing the set or stored operation mode (ie, the source mode). Determine whether or not received. If the mode conversion message is received, the process proceeds to step S23. Otherwise, step S21 is repeatedly performed while performing the current operation mode.

In step S23, the data processor 19 starts the conversion mode in response to the mode conversion message, converts the current operation mode to store the converted operation mode (i.e., sink mode), performs a reboot, and converts. Start operation in the configured operation mode. The data processor 19 performs step S23 and proceeds to step S25.

In step S25, since the data processor 19 completes the conversion mode in step S23, the data processor 19 generates a conversion completion message for notifying the transmission mode and transmits the converted completion message to the first wireless acoustic conversion device 10 through the communication unit 15. . The data processor 19 performs step S25 and proceeds to step S27.

In step S27, it is determined whether the data processor 19 has received a conversion complete message from the first radio acoustic conversion device 10 through the communication unit 15. However, the data processor 19 repeatedly performs step S27 for a predetermined reference time after performing step S25. Alternatively, since the first radio acoustic conversion apparatus 10 may have converted the operation mode earlier, the data processor 19 may perform the preset reference time after performing step S25 after step S23. It may be determined whether a conversion complete message is received. If the conversion completion message is received before step S27, the data processor 19 receives and stores the conversion completion message, and when performing step S27, the data processor 19 finally starts the step S29 according to the received conversion completion message. Proceed to If a conversion complete message is received before step S27 or at the time of performing step S27, the data processor 19 proceeds to step S29, otherwise proceeds to step S31.

In step S29, the data processor 19 has also completed the operation conversion of the first radio acoustic conversion device 10, and thus operates in the converted operation mode. The data processor 19 proceeds to step S21 while performing the converted operation, and repeatedly performs step S21.

In step S31, the data processor 19 does not receive the conversion completion message from the first wireless acoustic conversion device 10 even though the second wireless acoustic conversion device 20 has completed the conversion of the operation mode. It is determined that the operation mode of the radio acoustic conversion device 10 is not completed (that is, a mode conversion failure). Accordingly, the data processor 19 proceeds to return to the operation mode before the converted operation mode (that is, the source mode), saves the previous operation mode, reboots, and starts operation in the previous operation mode. The data processor 19 performs step S31 and proceeds to step S33.

In step S33, the data processor 19 transmits a return message indicating the return to the previous operation mode to the first wireless acoustic conversion device 10 through the communication unit 15 while performing the previous operation mode. . The data processor 19 performs step S33, and proceeds to step S21 while performing the previous operation mode.

When the data processor 19 receives the return message from the first radio acoustic conversion device 10 through the communication unit 15 by the above-described step S17, the data processor 19 performs the step in step S27. If the process does not proceed to S31 or step S29 or S21, the operation mode of the first wireless acoustic conversion device 10 and the operation mode of the second wireless acoustic conversion device 20 are the same. Confirm that you are done. Therefore, upon receiving the return message, the data processor 19 proceeds to return to the previous operation mode (that is, the source mode) before the converted operation mode, stores the previous operation mode, reboots, and operates in the previous operation mode. Starts and proceeds to step S21.

For the same reason, when the data processor 9 receives the return message from the second radio acoustic conversion apparatus 20 through the communication unit 5 by the above-described step S33, the data processor 9 performs the step S11. In step S15 or step S1, the operation mode of the first wireless acoustic conversion device 10 and the operation of the second wireless acoustic conversion device 20 are performed. Check that the modes are the same. Therefore, upon receiving the return message, the data processor 9 proceeds to return to the operation mode before the converted operation mode (that is, the sink mode), stores the previous operation mode, reboots, and operates in the previous operation mode. Starts and proceeds to step S1.

According to various embodiments of the present disclosure, at least a part of an apparatus (eg, a processor or functions thereof) or a method (eg, operations) may be, for example, stored in a computer-readable storage medium in the form of a program module. Can be implemented with stored instructions. When the instruction is executed by a processor, the one or more processors may perform a function corresponding to the instruction. The computer-readable storage medium may be, for example, a memory.

Computer-readable recording media include hard disks, floppy disks, magnetic media (e.g. magnetic tape), optical media (e.g. CD-ROM, Digital Versatile Disc), magnetic- Optical media (eg, floppy disks), hardware devices (eg, ROM, RAM, or flash memory, etc.), etc. In addition, program instructions may include those generated by a compiler. It may include not only machine code but also high-level language code that can be executed by a computer using an interpreter, etc. The hardware device described above may be configured to operate as one or more software modules to perform the operations of various embodiments. The reverse is also true.

According to various embodiments of the present disclosure, the processor or the functions of the processor may include at least one or more of the above-described components, some may be omitted, or may further include additional other components. Operations performed by a module, program module, or other component according to various embodiments of the present disclosure may be executed in a sequential, parallel, repetitive, or heuristic manner. In addition, some operations may be executed in a different order, may be omitted, or other operations may be added.

As described above, the present invention is not limited to the specific preferred embodiments described above, and any person having ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims. It is to be understood that such changes may be made, and such changes will fall within the scope of the claims.

1, 11: microphone 2, 12: speaker
3, 13: input section 4, 14: display section
5, 15: communication unit 6, 16: power unit
9, 19: data processor

Claims (7)

In a wireless acoustic conversion system composed of first and second wireless acoustic conversion devices paired by Bluetooth communication, the wireless acoustic conversion system includes:
A first wireless acoustic conversion device comprising a first input unit for acquiring a mode conversion input, a first communication unit for performing Bluetooth communication, and a first data processor for performing a stored operation mode;
A second wireless acoustic conversion device including a second communication unit performing Bluetooth communication and a second data processor performing a stored operation mode different from an operation mode performed by the first data processor,
The operation mode is one of a source mode and a sink mode.
In accordance with the mode conversion input from the first input unit, the mode conversion for the operation mode being performed by the first data processor is performed, and the second mode conversion message is transmitted to the second wireless acoustic conversion device through the first communication unit to transmit the second radio. Mode conversion in the acoustic transducer is performed,
After receiving the mode conversion message through the second communication unit, the second data processor converts and stores the operation mode being performed into another operation mode, and operates in the converted operation mode,
The first data processor converts and stores the operation mode being performed into another operation mode, operates in the converted operation mode,
The first data processor transmits the first conversion complete message to the second wireless acoustic conversion device through the first communication unit while performing the converted operation mode,
And the second data processor transmits the second conversion complete message to the first wireless acoustic conversion device through the second communication unit while performing the converted operation mode. delete delete delete The method of claim 1,
If the first data processor does not receive the second conversion complete message, it returns to the previously performed operation mode, or
If the second data processor does not receive the first conversion complete message, returning to the previously performed mode of operation. The method of claim 5,
The first data processor returns to the operation mode previously performed, and transmits the first return message to the second wireless acoustic conversion apparatus through the first communication unit;
And the second data processor returns to an operation mode previously performed, and transmits a second return message to the first radio acoustic conversion device through the second communication unit. The method of claim 6,
When the first data processor receives the second return message while performing the converted operation mode, it returns to the previously performed operation mode, or
When the second data processor receives the first return message while performing the converted operating mode, returns to the previously performed operation mode.

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