JP2013214860A - Regeneration apparatus, regeneration process, terminal device, and regeneration system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regenerate program information when the desired program information is broadcast.SOLUTION: The regeneration apparatus includes an acquisition section that acquires analysis information characterizing a broadcast signal corresponding to desired broadcast information, and a control section that compares an analysis result obtained by analyzing a broadcast signal during reception in background with the analysis information and reproduces broadcast information corresponding to a broadcast signal during the reception when similarity of the analysis result to the analysis information is detected.

Description

  The present disclosure relates to a playback device, a playback method, a terminal device, and a playback system.

  Techniques have been proposed for preventing broadcast information such as traffic information and sports programs broadcast on radio broadcasts from being missed. For example, Patent Document 1 described below describes a radio device that stores a broadcast signal suitable for a keyword such as traffic information or baseball in a memory so that the broadcast signal stored in the memory can be reproduced later.

Japanese Patent Laid-Open No. 10-028068

  In order to appropriately search for broadcast information desired by the user, the user has to set the details of the keyword in detail, which is troublesome. Furthermore, there is a problem that the keyword set by default does not necessarily match the user's preference.

  Therefore, one of the objects of the present disclosure is to provide a playback device, a playback method, a terminal device, and a playback system that reliably play back broadcast information desired by a user without requiring keyword settings.

In order to solve the above-described problem, the present disclosure provides, for example,
An acquisition unit for acquiring analysis information characterizing a broadcast signal corresponding to desired broadcast information;
When the analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and it is detected that the analysis result and the analysis information are similar, the broadcast signal being received And a control unit that reproduces broadcast information corresponding to.

The present disclosure, for example,
Obtain analysis information that characterizes the broadcast signal corresponding to the desired broadcast information,
When the analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and it is detected that the analysis result and the analysis information are similar, the broadcast signal being received This is a playback method in a playback device that plays back broadcast information corresponding to the.

The present disclosure, for example,
An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background with the analysis information;
When it is detected as a result of the comparison that the analysis result and the analysis information are similar, a control unit that controls the playback target to be played back by the playback device to be broadcast information corresponding to the broadcast signal being received And a terminal device.

The present disclosure, for example,
Comprising at least one terminal device and a playback device connected to the terminal device;
The terminal device
An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background with the analysis information;
As a result of the comparison, when it is detected that the analysis result and the analysis information are similar, the first control is performed so that the playback target played back by the playback device is broadcast information corresponding to the broadcast signal being received. With a control unit of
Playback device
A receiver for receiving broadcast signals;
And a second control unit that reproduces broadcast information corresponding to the broadcast signal being received by the receiving unit in response to control by the first control unit.

  According to at least one embodiment, it is possible to reliably reproduce broadcast information desired by a user without requiring the setting of a keyword.

It is a block diagram which shows an example of a structure of the reproducing | regenerating apparatus in 1st Embodiment. It is a flowchart which shows an example of the flow of a registration process in 1st Embodiment. It is a flowchart which shows an example of the flow of the process which switches a source in 1st Embodiment. It is a block diagram which shows an example of a structure of the system in 2nd Embodiment. 10 is a flowchart illustrating an example of a flow of processing performed on the playback device side in the registration processing of the second embodiment. It is a flowchart which shows an example of the flow of the process performed by the portable terminal side in the registration process of 2nd Embodiment. 12 is a flowchart illustrating an example of a flow of processing performed on the playback device side in processing of switching sources according to the second embodiment. It is a flowchart which shows an example of the flow of the process performed by the portable terminal side in the process which switches the source of 2nd Embodiment. It is a flowchart which shows the other example of the flow of the process which switches a source. It is a flowchart which shows the other example of the flow of the process which switches a source. It is a flowchart which shows the other example of the flow of the process which switches a source. It is a figure for demonstrating the modification of the structure of DSP.

Hereinafter, embodiments and modifications of the present disclosure will be described with reference to the drawings. The description will be given in the following order.
<1. First Embodiment>
<2. Second Embodiment>
<3. Modification>
Note that the embodiments and modifications described below are suitable specific examples of the present disclosure, and the content of the present disclosure is not limited to these embodiments and modifications.

<1. First Embodiment>
"Configuration of playback device"
FIG. 1 shows an example of the configuration of a playback apparatus according to the first embodiment. A playback device 100 illustrated in FIG. 1 is configured as, for example, a playback device mounted on a vehicle or a stationary playback device installed in a home or the like.

  The playback device 100 includes a control unit 10. A DSP (Digital Signal Processor) 11, a tuner 12, a memory 13, and a display unit 14 are connected to the control unit 10. The display unit 14 functions as, for example, the touch panel 15 and can be operated by the user on the touch panel 15. A tuner 12, an audio source 16, and an amplifier 17 are connected to the DSP 11. A speaker 18 is connected to the amplifier 17. An antenna 19 is connected to the tuner 12. Hereinafter, each unit of the playback apparatus 100 will be described.

  The control unit 10 is composed of, for example, a CPU (Central Processing Unit) and controls each unit of the playback device 100. As processing performed by the control unit 10, the tuner 12 is tuned to a predetermined frequency and a broadcast signal of a predetermined frequency is received, processing according to an operation signal or trigger signal supplied from the touch panel 15, Examples include processing for instructing the start of analysis processing, processing for acquiring analysis information and analysis results from the DSP 11, processing for writing analysis information into the memory 13, and display control processing for performing predetermined display on the display unit 14. Is done.

  The DSP 11 executes various signal processes on the intermediate frequency signal (IF signal: Intermediate Frequency) generated by the tuner 12 and the audio signal supplied from the audio source 16. Signal processing includes FFT (Fast Fourier Transform) processing, digital filtering processing, deinterleaving processing, decoding processing, level control processing, DAC (Digital to Analog Converter) that converts these digital signals to analog signals ) Processing, timing processing and the like. An analog audio signal is formed by processing by the DSP 11. An analog audio signal is supplied to the amplifier 17.

  The DSP 11 has, for example, an analysis function 11a and a source switching function 11b in addition to the illustrated signal processing function. The analysis function 11a is a function for analyzing (acoustic) characteristics of a broadcast signal supplied from the tuner 12. For broadcast information, processing for analyzing frequency characteristics, processing for analyzing tone and tempo, processing for twelve-tone analysis for extracting beats, chord progressions, music structures, instrument sounds, etc., processing combining these processing, etc. As a result, the characteristics of broadcast information are analyzed. A known method can be applied as a method of analyzing the characteristics of these broadcast signals.

  The source switching function 11b is a function for switching the source reproduced from the speaker 18. By executing the source switching function 11b, for example, broadcast information corresponding to a broadcast signal and an audio source other than the broadcast information (hereinafter sometimes simply referred to as an audio source) are switched. In FIG. 1, the source switching function 11b is illustrated as a switch, but it is not necessary to provide a hardware switch. For example, the source can be switched by signal processing for setting the level of one source to substantially zero.

  In addition, the control part 10 and DSP11 may be comprised integrally. For example, it may be configured as a one-chip microcomputer having functions of the control unit 10 and the DSP 11.

  The tuner 12 amplifies an RF (Radio Frequency) signal supplied from the antenna 19, a tuning circuit that selects a desired broadcast station frequency signal from the amplified RF signal, and a frequency signal from a local oscillator. The mixer includes a mixer that mixes (mixes) with the RF signal and generates an IF signal, and an ADC (Analog to Digital Converter) circuit that converts the IF signal from an analog signal to a digital signal as appropriate. A part of the function of the tuner 12 may be included in the control unit 10 or the DSP 11.

  The memory 13 is composed of a nonvolatile memory, for example. The memory 13 stores analysis information obtained by analysis processing by the DSP 11 and frequency information of broadcast signals to be analyzed. A program executed by the control unit 10 may be stored in the memory 13. The area where the program is stored is an area that cannot be rewritten. The memory 13 may be used as a work area when the control unit 10 executes the program. The memory 13 may be incorporated in the control unit 10.

  The display unit 14 includes an LCD (Liquid Crystal Display) panel, an organic EL (Electroluminescence) panel, and the like. The display unit 14 displays, for example, a map based on a car navigation system, information about a radio broadcast station, and information about an audio source. For example, a registration button is displayed on the display unit 14. The registration button is displayed when a broadcast signal having a predetermined frequency is received and broadcast information corresponding to the broadcast signal is reproduced from the speaker 18. If the source to be played is an audio source 16 other than broadcast information, the registration button is not displayed.

  The display unit 14 is configured as, for example, the touch panel 15. By touching a predetermined position of the display unit 14, an operation (user operation) by the user is performed. An operation signal is generated in response to a user operation. An operation signal is supplied to the control unit 10. The control unit 10 performs processing according to the supplied operation signal. Note that the playback apparatus 100 may include an operation unit other than the touch panel 15. For example, the playback apparatus 100 may include an operation unit such as a button, a switch, or a dial.

  The audio source 16 is a generic term for audio sources other than broadcast information. As the audio source 16, audio content (music) corresponding to an audio signal stored in a CD (Compact Disc) or a semiconductor memory, audio content corresponding to an audio signal supplied via a network, a portable terminal or a tablet type The audio content corresponding to the audio signal held in the computer is exemplified.

  For example, a predetermined audio signal is read from the audio source 16 in response to a user operation for selecting an audio source. Predetermined signal processing by the DSP 11 is performed on the read audio signal. The audio signal that has undergone predetermined signal processing is amplified by the amplifier 17, and the amplified audio signal is supplied to the speaker 18. Audio content corresponding to the audio signal is reproduced from the speaker 18.

  Examples of broadcast signals received by the playback device 100 include broadcast signals of analog radio broadcasts such as AM (Amplitude Modulation) broadcasts and FM (Frequency Modulation) broadcasts. By applying to analog radio broadcasting, the playback device 100 can be used in a wide area, and the manufacturing cost of the playback device 100 can be reduced. Of course, broadcast signals other than analog broadcasting may be used. The broadcast signal received by the playback apparatus 100 may be a digital television broadcast audio signal.

  The amplifier 17 amplifies the broadcast signal supplied from the DSP 11 and the audio signal supplied from the DSP 11 with a predetermined amplification factor. The amplifier 17 may be configured by a digital amplifier. Broadcast information or the like amplified by the amplifier 17 is supplied to the speaker 18.

  The speaker 18 reproduces the signal supplied from the amplifier 17. For example, broadcast information corresponding to the broadcast signal is reproduced from the speaker 18. For example, audio content corresponding to the audio signal is reproduced from the speaker 18.

  When the playback apparatus 100 is mounted on the vehicle, the speaker 18 is, for example, a speaker (center) attached near the center of the dashboard and four speakers (front right, front left, rear right, Rear left). Of course, the arrangement mode of the speaker is not limited to the illustrated mode, and can be appropriately changed according to the size and shape of the vehicle.

  The broadcast information is actually listened to by the user, such as a talk program, a music program, and a commercial. Among broadcast information, there is broadcast information that is repeatedly broadcast. Examples of such broadcast information include at least one of traffic information, weather information, and news information.

"Operation of the playback device"
An example of the operation of the playback apparatus 100 will be described. The reproduction apparatus 100 receives a broadcast signal having a predetermined frequency. The predetermined frequency is, for example, a frequency assigned to a broadcast station that the user desires to listen to. The user selects a broadcasting station that he / she wishes to listen to, for example, using the touch panel 15. An operation signal corresponding to the selection operation is supplied to the control unit 10. The controller 10 tunes the tuner 12 to the frequency indicated by the supplied operation signal. The tuner 12 receives a broadcast signal having a frequency assigned to a broadcast station that the user desires to listen to.

  Broadcast signals received by the antenna 19 and the tuner 12 are supplied to the DSP 11. The broadcast signal is subjected to signal processing by the DSP 11 or the like, and broadcast information corresponding to the broadcast signal is reproduced from the speaker 18.

  When the user desires to listen to an audio source other than broadcast information, for example, the audio source 16 is selected using the touch panel 15. A selection signal corresponding to the selection operation is supplied to the control unit 10. The control unit 10 generates a control signal for switching the source to the audio source 16 according to the selection signal, and supplies the generated control signal to the DSP 11. The DSP 11 executes the source switching function 11b according to the supplied control signal, and switches the source to be reproduced from the broadcast information to the audio source 16. As described above, the user listens to the broadcast information or the audio source 16.

  When broadcast information is listened to, a trigger operation for generating a trigger signal is possible. Examples of the trigger operation include an operation of touching a registration button displayed on the display unit 14. When a trigger operation is performed, an operation signal (trigger signal) based on the trigger operation is supplied to the control unit 10. In response to the supply of the trigger signal, the control unit 10 generates a control signal for operating the analysis process. A control signal is supplied to the DSP 11.

  The DSP 11 executes the analysis function 11a according to the control signal and performs an analysis process. The DSP 11 performs analysis processing for analyzing the characteristics of the broadcast signal supplied from the tuner 12. The analysis process is performed, for example, for a preset time (for example, several minutes). After the analysis process is started, the analysis process may be performed until a silent section longer than a predetermined time (for example, several seconds) is detected. An analysis result is obtained by the analysis process. The DSP 11 supplies the analysis information and the frequency of the broadcast signal to be analyzed to the control unit 10. The control unit 10 stores the analysis information and frequency information supplied from the DSP 11 in the memory 13.

  After the analysis process is performed, the source to be played is switched from the broadcast information to the audio source 16 by a user operation. The audio source 16 is reproduced from the speaker 18. The control unit 10 reads frequency information and analysis information from the memory 13. Then, the control unit 10 tunes the tuner 12 to the frequency indicated by the frequency information. A broadcast signal having a frequency indicated by the frequency information is received. Further, the control unit 10 controls the DSP 11 so as to perform analysis processing on the broadcast signal. The DSP 11 analyzes the broadcast signal in the background under the control of the control unit 10. Analyzing in the background includes analyzing the broadcast signal without reproducing the broadcast information based on the broadcast signal being received.

  An analysis result is obtained by analysis processing in the background of the DSP 11. The DSP 11 supplies the analysis result to the control unit 10. The control unit 10 compares the analysis information read from the memory 13 with the analysis result supplied from the DSP 11. As a result of the comparison, when it is detected that both are similar within a predetermined range, the control unit 10 generates a control signal for switching the reproduction target. It should be noted that the similarity between the two within a predetermined range includes that they are completely coincident.

  A control signal generated by the control unit 10 is supplied to the DSP 11. The DSP 11 executes the source switching function 11b in accordance with the supplied control signal. By executing the source switching function 11b, the reproduction target is switched to broadcast information corresponding to the broadcast signal being received from the audio source 16 in the background.

"Process to register desired broadcast information"
Next, an example of a flow of processing for registering desired broadcast information (hereinafter, simply referred to as registration processing) will be described. FIG. 2 is a flowchart for explaining an example of the flow of registration processing.

  In step S1, a broadcast signal having a predetermined frequency is received. For example, a broadcast signal having a frequency corresponding to a broadcast station selected by the user is received. The broadcast signal received by the antenna 19 and the tuner 12 is subjected to predetermined signal processing by the DSP 11 and the amplifier 17. Broadcast information corresponding to the broadcast signal subjected to the signal processing is reproduced from the speaker 18. A registration button is displayed on the display unit 14. Then, the process proceeds to step S2.

  In step S2, it is determined whether or not a trigger operation is performed. Trigger operation is operation which touches the registration button displayed on the display part 14, for example. The trigger operation is performed when certain broadcast information is reproduced and the user desires to listen to the broadcast information again. For example, traffic information that is an example of broadcast information is reproduced from the speaker 18. The traffic information is broadcast repeatedly, and the next broadcast at a predetermined timing is scheduled. When the user desires to listen to traffic information broadcast at the next timing, the user performs a trigger operation.

  If the trigger operation is not performed in step S2, the process returns to step S2, and the determination of whether the trigger operation is performed is repeated. If a trigger operation is performed in step S2, the process proceeds to step S3.

  In step S3, a trigger signal is generated according to the trigger operation. The generated trigger signal is supplied from the display unit 14 (touch panel 15) to the control unit 10. Then, the process proceeds to step S4.

  In step S4, the control unit 10 generates a control signal for instructing the DSP 11 to analyze the broadcast signal in accordance with the supplied trigger signal. The generated control signal is supplied from the control unit 10 to the DSP 11. Then, the process proceeds to step S5.

  In step S5, the DSP 11 starts analyzing the broadcast signal supplied from the tuner 12 in accordance with the supplied control signal. The analysis process is performed, for example, for a preset time (for example, several minutes). In this example, since the trigger operation is performed when the traffic information is listened to, the broadcast signal when the traffic information is broadcast is analyzed. The traffic information includes, for example, a voice component of a speaker who announces traffic information and a BGM component. In the analysis processing by the DSP 11, for example, the characteristics of the speaker's voiceprint and the characteristics of the BGM are analyzed. Then, the process proceeds to step S6.

  In step S6, it is determined whether or not the analysis processing of the broadcast signal is finished. For example, it is determined whether the time for performing the analysis process has elapsed. If the broadcast signal analysis process does not end, the process returns to step S6, and the determination in step S6 is repeated. When the broadcast signal analysis process ends, the process proceeds to step S7.

  In step S <b> 7, the DSP 11 supplies analysis information as a result of the analysis processing to the control unit 10. The analysis information is information that characterizes a broadcast signal when traffic information is broadcast. Then, the process proceeds to step S8.

  In step S <b> 8, the control unit 10 stores the analysis information supplied from the DSP 11 and the frequency of the broadcast signal being received in the memory 13. Then, the registration process ends.

"Process using analysis information"
Next, an example of the flow of processing using analysis information will be described. Using the analysis information, for example, a source switching process for automatically switching the source to be reproduced is performed.

  FIG. 3 is a flowchart illustrating an example of the flow of source switching processing. In step S11, a broadcast signal having a predetermined frequency is received. Broadcast information corresponding to the received broadcast signal is reproduced from the speaker 18. That is, in step S11, the reproduction target source is set to radio broadcasting. The predetermined frequency in step S11 may be the same frequency as the predetermined frequency in step S1 of the registration process, or may be a different frequency. Then, the process proceeds to step S12.

  In step S12, it is determined whether or not there is an operation for switching the source to be reproduced. For example, it is determined whether or not the source to be reproduced has an operation of switching from the broadcast information of the radio broadcast to the audio source 16. The operation of switching the source is performed using the touch panel 15, for example. If there is no operation for switching the source, the process returns to step S12, and the determination in step S12 is repeated. If there is an operation to switch the source to be reproduced, the process proceeds to step S13.

  In step S <b> 13, an operation signal corresponding to an operation for switching the source to be reproduced is supplied from the touch panel 15 to the control unit 10. The control unit 10 generates a control signal for switching the source to be reproduced according to the supplied operation signal. The generated control signal is supplied from the control unit 10 to the DSP 11. In response to the supplied control signal, the DSP 11 executes the source switching function 11b and switches the source to be reproduced from the radio broadcast to the audio source 16. In this example, the audio source 16 will be described as audio content recorded on a CD.

  The audio signal recorded on the CD is read out. Predetermined signal processing by the DSP 11 is performed on the read audio signal. The audio signal subjected to the signal processing is amplified by the amplifier 17. Audio content corresponding to the audio signal to be amplified is reproduced from the speaker 18. Then, the process proceeds to step S14.

  In step S14, the control unit 10 reads the frequency information stored in the memory 13 by the registration process. The control unit 10 sets the tuning frequency of the tuner 12 to a frequency indicated by the frequency information. A broadcast signal having a frequency indicated by the frequency information is received. The broadcast signal to be received is supplied to the DSP 11. Then, the process proceeds to step S15.

  In step S15, the control unit 10 generates a control signal that causes the DSP 11 to start analyzing the broadcast signal. The generated control signal is supplied to the DSP 11. The DSP 11 analyzes the broadcast signal according to the supplied control signal. The analysis process is performed periodically, for example, every predetermined time (several minutes). By the analysis process, for example, the characteristics of the voiceprint of the speaker and the characteristics of the BGM are analyzed. As described above, audio content is reproduced from the speaker 18. Then, the process proceeds to step S16.

  In step S <b> 16, the DSP 11 supplies the analysis result obtained by the analysis process to the control unit 10. Then, the process proceeds to step S17.

  In step S <b> 17, the control unit 10 compares the analysis result supplied from the DSP 11 with the analysis information stored in the memory 13. For example, processing for comparing voiceprints and processing for comparing frequency characteristics of BGM are performed. Then, the process proceeds to step S18.

  In step S18, the control unit 10 determines whether the analysis result and the analysis information are similar. For example, if the respective voiceprints are similar with a predetermined similarity and the frequency characteristics of the respective BGM are similar with a predetermined similarity, it is determined that the analysis result and the analysis information are similar. If the analysis result does not include a voiceprint or BGM, the similarity is substantially 0, and it is determined that the analysis result and the analysis information are not similar. Note that the predetermined similarity is appropriately set according to the analysis processing time and the like.

  If it is determined in step S18 that the analysis result is not similar to the analysis information, the process returns to step S15. Then, an analysis process for the broadcast signal, a process for comparing the analysis result of the analysis process with the analysis information, and the like are performed again. If broadcast information is selected as the source to be played back during the processing of steps S15 to S18, the analysis processing for the broadcast signal, the processing for comparing the analysis result with the analysis information, and the like are stopped. You may make it do.

  If it is determined in step S18 that the analysis result is similar to the analysis information, the process proceeds to step S19. When it is determined that the analysis result and the analysis information are similar, this means that broadcast information registered as broadcast information that the user desires to listen to is broadcast. As a specific example, it means that traffic information that the user wants to listen to is broadcast. Therefore, the control unit 10 generates a control signal for switching the source to be reproduced from the audio content recorded on the CD to the broadcast information corresponding to the broadcast signal being received. The generated control signal is supplied from the control unit 10 to the DSP 11. Then, the process proceeds to step S20.

  In accordance with the supplied control signal, the DSP 11 executes the source switching function 11b and switches the input signal to the DSP 11. By executing the source switching function 11b, the source to be reproduced is switched from the audio content recorded on the CD to broadcast information (radio broadcast) based on the broadcast signal. Traffic information that the user desires to listen to is reproduced from the speaker 18.

  Thus, even when broadcast information that the user desires to listen to is broadcast during playback of the audio content of the audio source 16, the source to be played back can be automatically switched. For this reason, it is not necessary for the user to perform an operation of switching the source at the next timing when the traffic information is broadcast. For example, when the playback device 100 is mounted on a vehicle, it is not necessary for the user to perform an operation of switching the source, so that driving safety can be improved.

  Furthermore, broadcast information desired to be listened to can be registered by a simple operation. For example, it is not necessary to set keywords and user preference information in advance.

  Further, in order to analyze a broadcast signal, for example, the present disclosure can be applied to a system in which metadata is not added to the broadcast signal.

<2. Second Embodiment>
Next, a second embodiment will be described. In the second embodiment, an external device has a part of the functions of the playback device 100 in the first embodiment. Examples of the external device include a mobile terminal such as a smartphone, a tablet computer, and a personal computer. In the following description, an external device is described as a mobile terminal.

"System Configuration"
FIG. 4 shows an example of a system configuration in the second embodiment. The system includes, for example, a playback device 200 and a mobile terminal 300. In the playback apparatus 200, the same components as those of the playback apparatus 100 are denoted by the same reference numerals, and redundant description is omitted.

  The playback device 200 and the portable terminal 300 are connected by, for example, USB (Universal Serial Bus), and control commands can be exchanged between the two devices. For example, the source played back by the playback device 200 can be controlled in accordance with operations and processes executed on the mobile terminal 300.

  Furthermore, the output terminal (line out) of the playback device 200 and the input terminal (line in) of the mobile terminal 300 are connected. In FIG. 4, the output terminal of the playback device 200 and the input terminal of the mobile terminal 300 are not shown. For example, a broadcast signal received by the playback device 200 can be supplied to the mobile terminal 300. The connection method between the playback device 200 and the portable terminal 300 may be wired or wireless. In the case of wireless, for example, communication based on a Bluetooth (registered trademark) standard or a method based on Wi-Fi (registered trademark) can be used.

"Configuration of playback device"
An example of the configuration of the playback device 200 will be described. The playback apparatus 200 has a configuration that is substantially the same as the configuration of the playback apparatus 100 in the first embodiment. The control unit 20 performs substantially the same function as the control unit 10 except that the process of comparing the analysis result and the analysis information is not performed. The analysis information is stored in the mobile terminal 300 without being stored in the memory 13. The DSP 21 has substantially the same function as the DSP 11 except that the analysis process is not performed. Note that the source switching function of the DSP 21 is appropriately referred to as a source switching function 21a.

"Configuration of mobile device"
An example of the configuration of the mobile terminal 300 will be described. For example, the mobile terminal 300 includes a control unit 30, an operation unit 31, and a memory 32. The control unit 30 is constituted by a CPU, for example, and controls each unit of the mobile terminal 300. Further, the control unit 30 has a function of analyzing a broadcast signal supplied from the playback device 200. The function of analyzing the broadcast signal of the control unit 30 is appropriately referred to as an analysis function 30a.

  The operation unit 31 can be operated by the user. For example, a trigger operation for registering broadcast information that the user desires to listen to can be performed. The operation unit 31 may be configured as a touch panel.

  The memory 32 is composed of, for example, a nonvolatile memory. The memory 32 stores analysis information obtained by the analysis process of the control unit 30. Other information may be stored in the memory 32. The memory 32 may be incorporated in the control unit 30.

  The configuration of the mobile terminal 300 is an example, and is not limited to the configuration described above. For example, an audio signal may be stored in the memory 32, and a configuration for reproducing the stored audio signal may be added to the mobile terminal 300. A configuration for connecting to a network such as the Internet may be added to the mobile terminal 300. A configuration for performing a call function may be added to the mobile terminal 300. A known configuration can be appropriately added to the mobile terminal 300.

"Process to register desired broadcast information"
Next, an example of the flow of registration processing in the second embodiment will be described. FIG. 5 is a flowchart for explaining an example of the processing flow on the playback device 200 side in the registration processing.

  In step S25, the reproduction apparatus 200 receives a broadcast signal having a predetermined frequency. For example, a broadcast signal of a broadcast station selected by the user is received. The broadcast station is selected by the user using the operation unit 31 of the mobile terminal 300, for example. An operation signal based on the operation of the operation unit 31 is supplied to the control unit 30. The control unit 30 supplies a control command based on the operation signal to the control unit 20 of the playback device 200. The control unit 20 performs control to tune the tuner 12 to the frequency indicated by the control command. The control unit 30 stores the frequency of the broadcast signal of the broadcast station selected by the user in the memory 32 as frequency information.

  Predetermined signal processing by the DSP 21 is performed on the received broadcast signal. The broadcast signal subjected to the signal processing is amplified by the amplifier 17. Broadcast information is reproduced from the speaker 18 in the amplified broadcast signal. Then, the process proceeds to step S26.

  In step S <b> 26, the broadcast signal that has been subjected to signal processing by the DSP 21 is supplied to the output terminal of the playback device 200. The broadcast signal is supplied to the input terminal of the mobile terminal 300 via the output terminal. The broadcast signal is supplied to the control unit 30 of the mobile terminal 300. Note that the signal processing by the DSP 21 may be performed on the mobile terminal 300 side.

  FIG. 6 is a flowchart for explaining an example of a process flow on the mobile terminal 300 side in the registration process. In step S31, a broadcast signal is supplied from the playback device 200. Then, the process proceeds to step S32.

  In step S32, it is determined whether or not a trigger operation is performed. The trigger operation is an operation on the operation unit 31, for example. The trigger operation is performed when certain broadcast information is reproduced and the user desires to listen to the broadcast information again. For example, traffic information is reproduced as an example of broadcast information. The traffic information is broadcast repeatedly, and the next broadcast at a predetermined timing is scheduled. When the user desires to listen to traffic information broadcast at the next timing, the user performs a trigger operation.

  In step S32, when the trigger operation is not performed, the process returns to step S32, and the determination as to whether the trigger operation is performed is repeated. If a trigger operation is performed in step S32, the process proceeds to step S33.

  In step S33, a trigger signal is generated according to the trigger operation. The generated trigger signal is supplied from the operation unit 31 to the control unit 30. Then, the process proceeds to step S34.

  In step S34, the control unit 30 starts analysis processing of the broadcast signal supplied from the playback device 200 in accordance with the supplied trigger signal. The analysis process is performed, for example, for a preset time (for example, several minutes). In this example, since the trigger operation is performed when the traffic information is listened to, the broadcast signal is analyzed when the traffic information is broadcast. The traffic information includes, for example, a voice component of a speaker who announces traffic information and a BGM component. In the analysis processing by the control unit 30, for example, the characteristics of the speaker's voiceprint and the characteristics of the BGM are analyzed. Then, the process proceeds to step S35.

  In step S35, it is determined whether or not the analysis process of the broadcast signal is finished. For example, it is determined whether the time for performing the analysis process has elapsed. If the broadcast signal analysis process does not end, the process returns to step S35, and the determination in step S35 is repeated. When the broadcast signal analysis process ends, the process proceeds to step S36.

  In step S <b> 36, the control unit 30 stores analysis information obtained by the analysis process in the memory 32. The analysis information is information that characterizes a broadcast signal when traffic information is broadcast. The memory 32 stores analysis information and frequency information. Then, the registration process ends.

"Process using analysis information"
Next, a source switching process for automatically switching the source to be reproduced using the analysis information will be described.

  FIG. 7 is a flowchart illustrating an example of a process flow on the playback device 200 side in the source switching process. In step S41, the playback apparatus 200 receives a broadcast signal having a predetermined frequency. Broadcast information corresponding to the received broadcast signal is reproduced from the speaker 18. That is, in step S41, radio broadcast is set as a source to be played. The predetermined frequency in step S41 may be the same as or different from the predetermined frequency in step S25 of the registration process. Then, the process proceeds to step S42.

  In step S <b> 42, it is determined whether the source switching command and the frequency information generated based on the operation for switching the source to be played are supplied from the mobile terminal 300. The operation of switching the playback target source is, for example, an operation of switching the playback target source from the broadcast information of the radio broadcast to the audio source 16. The operation of switching the playback target source is performed using the operation unit 31 of the mobile terminal 300.

  When the source switching command and the frequency information are not supplied from the mobile terminal 300, the process returns to step S42, and the determination in step S42 is repeated. When the source switching command and the frequency information are supplied from the mobile terminal 300, the process proceeds to step S43.

  In step S <b> 43, the source switching command and frequency information are supplied to the control unit 20. The control unit 20 generates a control signal for switching the reproduction target from the broadcast information to the audio source 16 in accordance with the supplied source switching command. The generated control signal is supplied from the control unit 20 to the DSP 21. In response to the supplied control signal, the DSP 21 executes the source switching function 21a and switches the source to be reproduced from the broadcast information to the audio source 16. In this example, the audio source 16 will be described as audio content recorded on a CD.

  The audio signal recorded on the CD is read out. Predetermined signal processing by the DSP 21 is performed on the read audio signal. The audio signal subjected to the signal processing is amplified by the amplifier 17. Audio content corresponding to the audio signal is reproduced from the speaker 18. Then, the process proceeds to step S44.

  In step S <b> 44, the control unit 20 sets the tuning frequency of the tuner 12 to a frequency indicated by the frequency information supplied from the mobile terminal 300. By this processing, a broadcast signal having a frequency stored in the memory 32 is received. The received broadcast signal is supplied to the DSP 21. Predetermined signal processing by the DSP 21 is performed on the received broadcast signal. Note that signal processing performed on the broadcast signal may be performed by the mobile terminal 300. Then, the process proceeds to step S45.

  In step S <b> 45, a broadcast signal that has been subjected to predetermined signal processing by the DSP 21 is supplied to the mobile terminal 300. Although details will be described later, analysis processing by the mobile terminal 300 is performed on the broadcast signal. Then, the process proceeds to step S46.

  In step S46, it is determined whether or not a source switching command based on the comparison process executed by the portable terminal 300 is supplied. If the source switching command based on the comparison process is not supplied, the process returns to step S46, and the determination in step S46 is repeated. If a source switching command based on the comparison process is supplied, the process proceeds to step S47.

  In step S47, the control unit 20 generates a control signal for switching the source to be reproduced from the audio content to broadcast information corresponding to the broadcast signal being received. A control signal is supplied to the DSP 21 and an instruction to switch an input signal to the DSP 21 is given. Then, the process proceeds to step S48.

  In accordance with the supplied control signal, the DSP 21 executes the source switching function 21a. The source to be played is switched to broadcast information corresponding to the broadcast signal being received from the audio content. That is, traffic information that the user desires to listen to is reproduced from the speaker 18.

  FIG. 8 is a flowchart illustrating an example of a process flow on the mobile terminal 300 side in the source switching process. In step S51, it is determined whether or not there is an operation for switching the source to be reproduced. For example, it is determined whether or not there is an operation for switching the source to be reproduced from broadcast information to audio content. The operation of switching the source is performed using the operation unit 31, for example. If there is no operation for switching the source, the process returns to step S51, and the determination in step S51 is repeated. If there is an operation for switching the source to be reproduced, the process proceeds to step S52.

  In step S <b> 52, an operation signal corresponding to an operation for switching the source to be reproduced is supplied from the operation unit 31 to the control unit 30. The control unit 30 generates a source switching command for switching the source to be reproduced in accordance with the supplied operation signal. Further, the control unit 30 reads out frequency information stored in the memory 32. The control unit 30 supplies the source switching command and the frequency information to the playback device 200. In response to the source switching command, the playback apparatus 200 plays back the audio content recorded on the CD. Then, the process proceeds to step S53.

  In step S <b> 53, the broadcast signal received by the playback device 200 is supplied to the control unit 30 of the mobile terminal 300. The control unit 30 executes the analysis function 30a and starts an analysis process for the supplied broadcast signal. The analysis process is performed periodically, for example, every predetermined time (several minutes). By the analysis process, for example, the characteristics of the voiceprint of the speaker and the characteristics of the BGM are analyzed. Then, the process proceeds to step S55.

  In step S55, the control unit 30 compares the analysis result obtained by the analysis process with the analysis information stored in the memory 32. For example, processing for comparing voiceprints and processing for comparing frequency characteristics of BGM are performed. Then, the process proceeds to step S56.

  In step S56, the control unit 30 determines whether the analysis result and the analysis information are similar. Note that the similarity between the analysis result and the analysis information includes that the analysis result and the analysis information completely match. For example, if the respective voiceprints are similar with a predetermined similarity and the frequency characteristics of the respective BGM are similar with a predetermined similarity, it is determined that the analysis result and the analysis information are similar. If the analysis result does not include a voiceprint or BGM, the similarity is substantially 0, and it is determined that the analysis result and the analysis information are not similar. Note that the predetermined similarity is appropriately set according to the analysis processing time and the like.

  If it is determined in step S56 that the analysis result is not similar to the analysis information, the process returns to step S54. Then, analysis processing for the broadcast signal, processing for comparing the analysis result with the analysis information, and the like are performed again. If radio broadcast is selected as the source to be played back during the processing of step S54 to step S56, the analysis processing for the broadcast signal, the processing for comparing the analysis result with the analysis information, etc. are stopped. You may make it do.

  If it is determined in step S56 that the analysis result is similar to the analysis information, the process proceeds to step S57. When it is determined that the analysis result and the analysis information are similar, it means that broadcast information registered as broadcast information desired by the user is broadcast. As a specific example, it means that traffic information that the user wants to listen to is broadcast. Therefore, the control unit 30 generates a source switching command for switching the source to be reproduced to broadcast information corresponding to the broadcast signal being received from the audio content. A source switching command is supplied to the control unit 20 of the playback device 200.

  In the playback device 200, the above-described processing of step S47 and step S48 is performed according to the source switching command, and broadcast information corresponding to the broadcast signal being received is played back from the speaker 18. That is, traffic information that the user desires to listen to is reproduced from the speaker 18.

  Thus, by adopting a configuration in which an external device has a part of the functions of the playback device, the configuration of the playback device can be simplified, and the manufacturing cost of the playback device can be reduced. By using an external device as a mobile terminal, a trigger operation can be performed without being constrained by the location of the touch panel of the playback device.

  A plurality of terminals may be connectable to the playback device. Then, a trigger operation may be performed for each terminal.

<3. Modification>
Although a plurality of embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and various modifications can be made. Hereinafter, modified examples will be described.

  In the source switching process described above, a process of returning the source to be reproduced from the broadcast information corresponding to the broadcast signal being received to the audio source 16 may be performed. FIG. 9 is a flowchart illustrating an example of the flow of the source switching process in the modification. In FIG. 9, the process from step S11 to step S20 is the same process as the process demonstrated in FIG. In step S20, the playback target source is switched from the audio content recorded on the CD to the broadcast information. Then, the process proceeds to step S61.

  In step S61, it is determined whether or not a silent section longer than a predetermined time (for example, about 1 second) in the broadcast signal is detected. The silent section is detected by the DSP 11, for example. If a silent section is not detected, the process returns to step S61, and the process of step S61 is repeated. If a silent section is detected, the process proceeds to step S62.

  In step S62, the source to be played is switched from broadcast information to CD audio content. In radio broadcasting, a silent section occurs when broadcast information is switched. By detecting this silent section, it is possible to determine that the traffic information that the user wishes to listen to is terminated and the broadcast information is switched from the traffic information to another broadcast information. Since the traffic information ends, a process for returning the source to be reproduced to the audio content is performed. The user can listen to the audio content again.

  Note that the playback position of the CD in step S20 may be held. In step S62, the audio signal recorded on the CD may be reproduced from the reproduction position.

  FIG. 10 is a flowchart illustrating another example of the flow of the source switching process in the modification. In FIG. 10, the process from step S11 to step S20 is the same process as the process demonstrated in FIG. In step S20, the source to be reproduced is switched from the audio content recorded on the CD to the broadcast information corresponding to the broadcast signal being received. Then, the process proceeds to step S65.

  In step S65, the control unit 10 determines whether or not the reproduction time of the broadcast information is equal to or longer than a predetermined time. The predetermined time can be set as appropriate. For example, the predetermined time is set to 3 minutes. If the reproduction time of the broadcast information is not 3 minutes or longer, the process returns to step S65, and the determination in step S65 is repeated. If the reproduction time of the broadcast information is 3 minutes or longer, the process proceeds to step S66.

  In step S66, the reproduction target source is switched from the broadcast information of the radio broadcast to the audio content recorded on the CD. That is, the control unit 10 supplies a control signal for switching the source to be reproduced to the DSP 11. The DSP 11 executes the source switching function 11b in accordance with the supplied control signal, and switches the source to be reproduced from the broadcast information to the audio content. Usually, traffic information, news, and weather information are completed in about a few minutes, so it is not necessary to reproduce broadcast information for more than this time. That is, it is possible to appropriately switch the source to be reproduced without reproducing broadcast information more than necessary.

  You may combine the process of FIG. 9 and FIG. For example, when a silent section is detected, the source to be played back is returned to the audio content recorded on the CD. Furthermore, when the silent section is not detected, the source to be reproduced may be returned to the audio signal when the broadcast information is reproduced for a predetermined time or longer.

  The trigger operation may be performed a plurality of times, and a plurality of pieces of analysis information may be stored in the memory 13. As shown in step S <b> 67 of FIG. 11, it may be determined whether there is other analysis information in the memory 13. If there is other analysis information in the memory 13, the process returns to step S15 so that the analysis result obtained by analyzing the broadcast signal is compared with the other analysis information. Good. With this process, for example, when traffic information is broadcast at a certain timing, the source to be reproduced can be switched, and when the news is broadcast at another timing, the source to be reproduced can be switched. .

  When the source to be reproduced is switched from the audio content to the traffic information, a part of the voice of the traffic information may be lost due to the time required for the source switching process, and the head may be cut off. Therefore, as shown in FIG. 12, for example, the DSP 11 may be provided with a buffer memory 11c having a certain capacity to store broadcast signals for a predetermined time. The buffer memory 11c is provided in the broadcast signal supply path. By supplying the broadcast signal stored in the buffer memory 11c to the amplifier 17, it is possible to prevent the traffic information from being cut off.

  The above-described embodiments and modifications can be further modified as follows.

  You may make it analyze at least one of the characteristic of a speaker's voiceprint, and the characteristic of BGM. Furthermore, when one of the features of the speaker's voiceprint and the BGM is similar, it may be determined that the analysis result and the analysis information are similar. Thereby, for example, when the next traffic information is broadcast, it is possible to accurately determine that the traffic information is broadcast even when one of the speaker who announces the traffic information and the BGM of the traffic information is changed.

  In the analysis process performed in response to the trigger operation, when information indicating time is included in the broadcast signal, the source to be reproduced may be switched from the audio content to the broadcast information at that time. For example, in the analysis process performed in response to the trigger operation, when the voice “Next traffic information is around 2 o'clock” is recognized, the source to be played is read from the audio content at 2 o'clock or around 2 o'clock. You may make it switch to broadcast information. When the information indicating the time is not recognized, at least one of the voice print characteristic of the speaker and the BGM characteristic may be analyzed.

  The trigger operation may be an operation using sound. For example, the reproduction apparatus 100 is provided with a sound collection unit such as a microphone. A trigger operation may be performed by inputting a specific term to the sound collection unit. For example, a trigger operation may be performed by uttering a sound “I want to hear this again” toward the sound collection unit. Further, a gesture operation may be performed as a trigger operation.

  The external device may be a memory only. The analysis information may be supplied from an external device to the playback device. That is, acquiring the analysis information is not limited to acquiring the analysis information by performing an analysis process, but reading and acquiring the analysis information stored in the memory or being supplied from an external device Including obtaining analysis information.

  The audio source 16 does not necessarily have to be played after the registration process based on the trigger operation is performed. For example, when it is determined that traffic information is broadcast in a state where the audio source 16 is not played back, radio broadcasting may be automatically turned on and the traffic information may be played back from the speaker 18. .

  The source to be played back may be switched by crossfade processing. By switching the source to be reproduced, it is possible to prevent the user from feeling uncomfortable. In this case, a buffer memory as shown in FIG. 12 is provided in order to prevent the traffic information from being inaudible during a low volume period, and broadcast from a timing before a predetermined time from the timing at which the traffic information is broadcast. It is desirable to reproduce the information.

  In addition to the apparatus, the present disclosure can be realized by a method, a program, a recording medium on which the program is recorded, and the like. Furthermore, the present disclosure can be applied to a so-called cloud system in which the exemplified processing is distributed and processed by a plurality of devices. For example, the present disclosure may be realized as a system that executes all of the exemplified processes and that performs a part of the processes.

  Note that the configurations and processes in the embodiments and the modifications can be appropriately deleted or changed within a range where no technical contradiction occurs. The order of processing can be changed as appropriate within the range where no technical contradiction occurs. Processing may be performed in parallel. Furthermore, the configurations and processes in the embodiments and the modified examples can be appropriately combined within a range where no technical contradiction occurs.

This indication can also take the following composition.
(1)
An acquisition unit for acquiring analysis information characterizing a broadcast signal corresponding to desired broadcast information;
The analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and when it is detected that the analysis result and the analysis information are similar, the reception And a control unit that reproduces broadcast information corresponding to the broadcast signal in the medium.
(2)
The controller is
Play an audio source other than broadcast information based on the broadcast signal being received,
The analysis result obtained by analyzing the broadcast signal being received during playback of the audio signal is compared with the analysis information,
The playback device according to (1), wherein when it is detected that the analysis result and the analysis information are similar, the playback target is switched from the audio source to broadcast information corresponding to the broadcast signal being received.
(3)
The reproduction device according to (2), wherein the control unit switches the reproduction target from the broadcast information to the audio source after reproducing the broadcast information.
(4)
The playback device according to (3), wherein the control unit switches the playback target from the broadcast information to the audio source after playing the broadcast information for a predetermined time.
(5)
The playback device according to (3), wherein the control unit switches the playback target from the broadcast information to the audio source when the broadcast information includes a silent section of a set time or longer.
(6)
The reproduction apparatus according to any one of (1) to (5), wherein analysis information characterizing the broadcast signal is obtained by analyzing the broadcast signal being received according to a predetermined operation.
(7)
The reproduction apparatus according to any one of (1) to (6), wherein the broadcast information is at least one of traffic information, news information, and weather information.
(8)
The playback device according to any one of (1) to (7), wherein at least one of a feature of background music included in the broadcast information and a feature of a voiceprint of an audio signal included in the broadcast information is analyzed.
(9)
The reproduction apparatus according to any one of (1) to (8), wherein the broadcast signal is a broadcast signal of an analog radio broadcast.
(10)
Obtain analysis information that characterizes the broadcast signal corresponding to the desired broadcast information,
The analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and when it is detected that the analysis result and the analysis information are similar, the reception A reproduction method in a reproduction apparatus for reproducing broadcast information corresponding to a broadcast signal in the medium.
(11)
An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result with the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background;
As a result of the comparison, when it is detected that the analysis result and the analysis information are similar, the playback target played back by the playback device is broadcast information corresponding to the broadcast signal being received. And a control unit that controls the terminal device.
(12)
Comprising at least one terminal device and a playback device connected to the terminal device;
The terminal device
An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result with the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background;
When it is detected as a result of the comparison that the analysis result and the analysis information are similar, the playback target played back by the playback device is broadcast information corresponding to the broadcast signal being received. And a first control unit for controlling
The playback device
A receiver for receiving broadcast signals;
A reproduction system comprising: a second control unit that reproduces broadcast information corresponding to a broadcast signal being received by the reception unit in response to control by the first control unit.

10 ... Control unit 11 ... DSP
12 ... Tuner 13 ... Memory 15 ... Touch panel 16 ... Audio source 20 ... Control unit 21 ... DSP
30 ... Control unit 31 ... Operation unit 32 ... Memory 100, 200 ... Playback device 300 ... Portable terminal

Claims (12)

An acquisition unit for acquiring analysis information characterizing a broadcast signal corresponding to desired broadcast information;
The analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and when it is detected that the analysis result and the analysis information are similar, the reception And a control unit that reproduces broadcast information corresponding to the broadcast signal in the medium. The controller is
Play an audio source other than broadcast information based on the broadcast signal being received,
The analysis result obtained by analyzing the received broadcast signal during reproduction of the audio data is compared with the analysis information,
The playback device according to claim 1, wherein when it is detected that the analysis result and the analysis information are similar, the playback target is switched from the audio source to broadcast information corresponding to the broadcast signal being received.   The playback apparatus according to claim 2, wherein the control unit switches the playback target from the broadcast information to the audio source after playing back the broadcast information.   The playback apparatus according to claim 3, wherein the control unit switches the playback target from the broadcast information to the audio source after playing the broadcast information for a predetermined time.   The playback device according to claim 3, wherein the control unit switches a playback target from the broadcast information to the audio source when the broadcast information includes a silent section longer than a set time.   The playback apparatus according to claim 1, wherein analysis information characterizing the broadcast signal is obtained by analyzing a broadcast signal being received according to a predetermined operation.   The playback apparatus according to claim 1, wherein the broadcast information is at least one of traffic information, news information, and weather information.   The playback apparatus according to claim 1, wherein at least one of a feature of background music included in the broadcast information and a feature of a voiceprint of an audio signal included in the broadcast information is analyzed.   The playback apparatus according to claim 1, wherein the broadcast signal is a broadcast signal of an analog radio broadcast. Obtain analysis information that characterizes the broadcast signal corresponding to the desired broadcast information,
The analysis result obtained by analyzing the broadcast signal being received in the background is compared with the analysis information, and when it is detected that the analysis result and the analysis information are similar, the reception A reproduction method in a reproduction apparatus for reproducing broadcast information corresponding to a broadcast signal in the medium. An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result with the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background;
As a result of the comparison, when it is detected that the analysis result and the analysis information are similar, the playback target played back by the playback device is broadcast information corresponding to the broadcast signal being received. And a control unit that controls the terminal device. Comprising at least one terminal device and a playback device connected to the terminal device;
The terminal device
An acquisition unit that acquires analysis information characterizing the broadcast signal by analyzing the broadcast signal received by the playback device according to a predetermined operation;
A comparison unit that compares the analysis result with the analysis result obtained by analyzing the broadcast signal being received by the playback device in the background;
When it is detected as a result of the comparison that the analysis result and the analysis information are similar, the playback target played back by the playback device is broadcast information corresponding to the broadcast signal being received. And a first control unit for controlling
The playback device
A receiver for receiving broadcast signals;
A reproduction system comprising: a second control unit that reproduces broadcast information corresponding to a broadcast signal being received by the reception unit in response to control by the first control unit.

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