TWI390426B - An audio signal source selecting means and an audio signal source selecting method - Google Patents

Description

Audio signal source selection device and audio signal source selection method

The present invention relates to a source selection device and a source selection method.

In the prior art, a source device for outputting an audio signal has a radio receiving device that receives radio broadcasting such as an FM method or an AM method, and a recording device to be recorded on a cassette, a compact disc (CD), a mini disc (registered trademark) (MD), or the like. A media reproduction device that records sound data on a medium to be reproduced. Then, the acoustic signals obtained from the source devices are selected, and the selected audio signals are supplied to the speakers through an equalizer, an amplifier, or the like, and the sound is output from the speakers.

Thus, in the case of a plurality of source types (for example, FM broadcast, AM broadcast, CD, MD, etc.) provided by one or a plurality of source devices, the source selection device that selects one source category from the plurality of source types is independently set or Set in an electronic machine.

In the case of such a source selection device, the predetermined source device is connected to the source selection device, and the source species of the predetermined source device is indicated by printing on the surface of the frame. In the vicinity thereof, when the source type is selected, an operation unit operated by the user is often provided.

Therefore, in the prior art, considering the convenience of the user, the following patent is proposed: a source type that is currently selected in the sound output (for example, refer to Patent Document 1), and a source type selected as a CD player. In the case of a CD, if the CD player is in a non-operating state, the error is indicated (for example, refer to Patent Document 2), and it is possible to select FM broadcast and AM broadcast as different source types in radio broadcasting (refer to Patent Document 3). The player who can easily operate the roadside belt (for example, refer to Patent Document 3), and when the operation unit uses the knob, the operation unit is formed into a shape that cannot be rotated beyond the first and last selection legs (for example, refer to Patent Document 4). .

[Patent Document 1] JP-A-2002-209284 (PTL 0035, 0040, pp. 2 to 5, etc.) [Patent Document 2] Utility New Publication No. 2578545 (Instruction) [Patent Document 3] No. 3-24822 (Patent Document 4), JP-A-63-077233 (Picture)

However, in the above-described conventional source selection device, there are the following problems regarding the convenience of the user.

In the above-described conventional source selecting device, although it is selected that the source type in the sound output can be confirmed by the user, it is difficult to confirm the first selected source type when shifting to the power source in the standby state.

Further, in the above-described conventional source selecting device, it is difficult to confirm that the source type of the tape playback is in the middle and return to the end of the tape playback.

Further, in recent years, radio broadcasting stations (especially FM stations) have been increasing in various places, and it has been difficult to easily select a station by dividing the source type only by the modulation method of FM broadcasting or AM broadcasting. Although there is a function of presetting a plurality of FM broadcasting stations into a plurality of groups, even in this case, it is necessary to first select a group after selecting an FM as a source type, and then select a broadcasting station in the group.

Further, in the above-described conventional source selecting device, the operation portion having the end portion of the listed source type is selected by using the operation portion having the special mechanical structure, and the operability is improved. However, from the viewpoint of the cost of the device, a widely-used operation unit that can continuously rotate, such as a rotary encoder that does not have a mechanical engagement structure at the end, has recently been used. In the case of using such a wide-ranging operation portion that can be continuously rotated, since the operation portion is not mechanically engaged, it is difficult to select the operation of selecting the end portion. For example, when the operation unit is not operated and the operation is not performed, it is not sure whether or not the selection foot selected today is selected during the rotation.

In view of the above, it is an object of the present invention to provide a source selection device and a source selection method for improving user operability.

That is, an object of the present invention is to provide a source selection device and a source selection method. When the transfer to the power source is started, the source type initially selected can be confirmed in the standby state, and after the end of the listening of the tape playback, etc. The source type can be confirmed by the user, and the user can simply select the desired play station from a plurality of play stations, and even if the general operation unit is used again, the selection foot of the end can be simply selected.

In order to solve the above problems, the present invention is disclosed as follows.

One of the source selection devices of the present invention comprises: a display device respectively displaying a plurality of source types of one or more source devices; and a state transition device for causing the source selection device or the device incorporating the source selection device to operate The state is switched between a stand-by state and a power-on state; a memory device, in the power-on state, memorizes source type information indicating the selected source type; The type display control device controls the display device in a standby state, and displays, in the plurality of source types, a source type indicated by the source type information memorized by the memory device; and a source type selection device, One of the plurality of source types is selected, and when the operation state is switched from the standby state to the power-on state, the source type indicated by the source type information stored in the memory device is selected.

One of the source selection devices of the present invention comprises: a display device respectively displaying a plurality of source types of one or more audio signal output devices; a state conversion device for causing the source selection device or the audio containing the source selection device The operating state of the device is switched between the standby state and the power-on state; a memory device, in the power-on state, memorizes the source type information indicating the selected source type; a source type display control device in the standby state And controlling the display device to display, in the plurality of source types, a source type indicated by the source type information memorized by the memory device and a source type of the remaining audio signal output device; and selecting a source type The device selects one of the plurality of source types, when the action state is changed from the standby state When changing to the power-on state, select the source type indicated by the source type information stored in the above memory device.

Further, the source selecting device of the present invention is the one or more of the plurality of audio signal output devices in the source selecting device, wherein the recording medium is pluggable, and the sound stored in the recording medium is read. And outputting an audio signal from the audio data, wherein the memory device memorizes source type information indicating a source type of the media playback device and source type information indicating a source type selected by one of the source types; When the source type control device detects the exit of the recording medium when the source type of the media playback device is displayed, the source type control device controls the display device to stop the media regeneration by referring to the source type information in the memory device. The display of the source type of the device and the source type selected by one of the source types of the media reproduction device.

Further, in the source selecting device of the present invention, in the source selecting device, the source type selecting means stores, in a standby state, source type information of the media reproducing device in which the recording medium exits is stored in the memory device. In the case where the state transition device switches the operating state from the standby state to the power-on state, the source selected from one of the source types of the media reproducing device is selected based on the source type information stored in the memory device. kind.

Further, in the source selecting device of the present invention, in the source selecting device, the source type display control device specifies an audio signal for a source type of the plurality of audio signal output devices in a state where the power source is activated. Whether the number can be output or not, and the display device is controlled to display the source type selected by the source type selection means in the first state and the remaining source type as the first state in the source type of the outputtable audio signal. Different second forms, or the source type of the audio signal that cannot be output.

Further, the source selecting device of the present invention is the source selecting device described above, further comprising an operating portion that is freely rotatable and depressible, a first operation detecting device that detects a pressing operation of the operating portion, and detecting the operation a second operation detecting device of the rotation operation of the portion, wherein when the first operation detecting device detects the pressing operation of the operation portion, the state switching device causes the operation state of the source selection device or the audio device to be in a standby state The power-on state is alternately switched; the display device is disposed in the circumferential direction around the operation portion, and has a state of turning on and off, and indicates a source type by lighting for each source type; the source type selection device In the state where the power is turned on, one of the source types from which the audio signal can be output is selected corresponding to the rotation operation detected by the second operation detecting means.

Further, the source selecting device of the present invention is the above-mentioned source selecting device, wherein the plurality of audio signal output devices include a broadcast receiving device of an FM radio broadcast or an AM radio broadcast, and a compact disc or a mini disc (mini) Disc) A media reproduction device as a recording medium.

Further, in the source selecting device of the present invention, the source type display control device controls the display device when an automatic seek operation of the broadcast receiving device in the plurality of audio signal output devices is performed. The source type of the object to be automatically searched is displayed in different states in the display state of the source type in the power-on state and the display state of the source type in the standby state.

One of the source selection devices of the present invention comprises: a display device respectively displaying a plurality of source types including one or more audio signal output devices of the broadcast receiving device; and a source type selection device for selecting the plurality of source types a source type; a memory device that memorizes the source type information of the source type selected by the source type selection device; and a specific purpose operation unit that is listened to when the content having a specific purpose is started and ended The operation, wherein when the listening start operation corresponding to the specific purpose operation portion is detected, the display device is controlled to listen to the source type indicated by the source type information memorized by the memory device at the start operation, and before the start operation The different states indicate that, after detecting the end of the listening operation corresponding to the specific purpose operation unit, the display device is controlled to listen to the source type indicated by the source type information memorized by the memory device at the start operation. The same appearance table as before listening to the start operation .

Moreover, the source selecting device of the present invention further includes a state converting device for causing the source selecting device or the device having the source selecting device to operate between a standby state and a power-on state. Performing the conversion; the memory device memorizes the source type information selected in the power-on state; and the source-type display control device detects the start of the listening operation in the power-on state, and listens to the start operation by the memory The type of source indicated by the source type information memorized by the device is expressed in a different form from that before the start of the operation, and then, when the end of the listening operation is detected, the source type information memorized by the memory device at the start operation is heard. The type of the source is indicated in the same manner as before the start of the operation, and in the standby state, when the above-described listening start operation is detected, the display of all the source types is stopped until the end of the listening operation is detected.

Further, in the source selecting device of the present invention, in the source selecting device, the playback receiving device of the plurality of audio signal output devices plays a content having a specific purpose, and can receive a predetermined modulation method and a predetermined one. Frequency information transmission of traffic information.

One of the source selection devices of the present invention includes: a source type display unit, wherein the plurality of play stations of the same modulation mode that can be received by the playback receiving device are preset to a plurality of groups, for the above-mentioned playback The receiving device respectively displays the individual groups in the preset plurality of groups as one source category, and displays the plurality of the source categories, and displays a plurality of source types listed by the source type display unit. one of them.

Further, in the source selecting device of the present invention, in the source selecting device, the source display unit sets a first FM station group preset by a predetermined number of FM stations to a broadcast receiving device that receives FM broadcast and AM broadcast. The second FM station group preset by the predetermined number of other FM stations and the AM station group preset by the predetermined number of AM stations are respectively displayed as the source type.

One of the source selection devices of the present invention includes: an operation portion that can continuously perform a plurality of rotations; a rotation operation detecting device that detects a rotation operation corresponding to the operation portion; and a source type display portion that has one or more a plurality of source types of the source device are arranged in the circumferential direction around the operation unit, and a source type selection device is selected and displayed by the source type display unit in response to a rotation operation detected by the rotation operation detecting device. In one of the source types, when the rotation operation amount detected by the rotation operation detecting device exceeds the rotation operation amount of the first or last source type selected in the source type arrangement, the arrangement of the source type is selected corresponding to the rotation operation direction. The initial or final source of the species.

Further, the source selecting device of the present invention further includes a determining device for determining whether source signals of each source type can be outputted by the source selecting device, wherein the source type display portion is determined according to the judgment device. Only the source type from which the source signal can be output is displayed in the peripheral direction around the operation portion.

Further, in the source selecting device of the present invention, in the source selecting device described above, the rotating operation detecting device has a rotary encoder that is mechanically coupled to the operating portion.

One of the source selection methods of the present invention includes the steps of: memorizing the source type information of the selected source type in the state in which the power is turned on in the plurality of source types of the one or more source devices in the source selection device In a predetermined memory device, the operation state of the source selection device or the device in which the source selection device is built is switched from a power-on state to a standby state; in the standby state, in the plurality of source types, the memory is stored in the memory The source type indicated by the source type information of the device is displayed by a predetermined display device; the operation state of the source selection device or the device having the source selection device is switched from the standby state to the power-on state; corresponding to the standby state to the power source In the switching of the on state, among the plurality of source types, the source type indicated by the type information stored in the predetermined memory device is selected.

One of the source selection methods of the present invention includes the steps of: memorizing the source type information of the source type selected from a plurality of source types including one or more audio signal output devices of the receiving device in a predetermined memory device. ???detecting a listening start operation corresponding to a specific purpose operation portion that is operated at the start and end of the broadcast of the content having the specific purpose; and detecting the start of the operation corresponding to the specific purpose operation portion During operation, the source type indicated by the source type information memorized by the memory device at the start of operation is listened to, and is displayed by a predetermined display device different from the state before the start of the operation; and the operation unit corresponding to the specific purpose is detected. Listening to the end operation; and when detecting the end of the listening operation corresponding to the specific purpose operation unit, the source type indicated by the source type information memorized by the memory device at the start operation is heard to be the same as before the start operation The state is displayed by a predetermined display device.

One of the source selection methods of the present invention includes the following steps: in the case where the plurality of play stations of the same modulation method that can be received by the playback receiving device are preset to a plurality of groups, respectively, for the above-mentioned broadcast receiving device An individual group of the preset plurality of groups is displayed as a source category, and a plurality of the above-mentioned source categories are displayed; and one of the plurality of source categories displayed is selected.

One of the source selection methods of the present invention includes the steps of: continuously performing a plurality of rotations and detecting a rotation operation corresponding to the operation portion; and multiplexing a plurality of source types of one or more source devices around the operation portion Displayed in a circumferential direction; one of the displayed source types is selected corresponding to the above-described rotation operation, and when the detected rotational operation amount exceeds the rotational operation amount of the first or last source type selected in the source type arrangement, The first or last source type of the arrangement of the source types is selected corresponding to the direction of the rotational operation.

According to the present invention, a source selection device and a source selection method for improving the operability of a user can be obtained.

That is, according to the present invention, a source selection device and a source selection method can be obtained, and the source type initially selected when the transfer to the power source is activated can be confirmed in the standby state; or the source of the return after the end of the listening operation such as the tape playback. The type can be confirmed by the user; or the user can simply select the desired playing station from a plurality of playing stations; or even if the general operating unit is used again, the selection of the end can be simply selected.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

Hereinafter, embodiments of the present invention will be described based on the drawings.

Embodiment 1

Fig. 1 is a front elevational view showing an acoustic device incorporating a source selection device according to a first embodiment of the present invention. Fig. 2 is a block diagram showing the structure of the acoustic device 1 of Fig. 1.

The audio device 1 is a device for vehicle mounting, and includes two source reproduction devices, a radio transmission/reception device, and two media reproduction devices of a CD and an MD. Further, in the first embodiment, the user interface (UI) unit 31 and the control unit 33 in Fig. 2 constitute a source selection device.

In the first drawing, the source selection UI unit 11 has a source type display unit that displays the source species in accordance with the state of the acoustic device 1, and an operation unit that operates when the source type is selected.

In order to insert a CD into the CD reproducing unit 51, the medium insertion opening 12 is an opening formed in the front surface of the housing of the acoustic device 1. The exit button 13 is an operation unit that operates when the inserted CD is ejected (discharged). The exit button 13 is a part of the CD operation unit 42 of Fig. 2 . Further, the CD operation unit 42 is an operation unit that performs operations such as reproduction, selection, and stop of the CD, and the drawings other than the exit button 13 are omitted here.

In order to insert the MD into the MD reproducing unit 52, the medium insertion port 14 is an opening formed in the front surface of the casing of the acoustic device 1. The exit button 15 is an operation unit that operates when the inserted MD is ejected (discharged). The exit button 15 is a part of the MD operation unit 43 of Fig. 2 . Further, the MD operation unit 43 is an operation unit that performs operations such as reproduction, selection, and stop of the CD, and the drawings other than the exit button 15 are omitted here.

The exit buttons 13, 15 each have a button element and electrically detect a push switch for the push down operation of the button element.

The tuning operation unit 16 is an operation unit that operates when the reception frequency of the radio broadcast receiving unit 53 is changed and when traffic information is received from a specific broadcast station. In the first embodiment, the tuning operation unit 16 is a cylindrical operation unit, and has a rotary encoder that optically or electrically detects a rotation operation and a push switch that electrically detects a depression operation, at the reception frequency. When it is changed, it is rotated, and it is pressed at the beginning and the end of receiving traffic information.

The preset station selection operation unit 17 is an operation unit that operates when a predetermined broadcast station is selected for the currently selected source type (here, "FM1", "FM2" or "AM"). In the first embodiment, the preset stage selection operation unit 17 has six button elements and the same number of push switches that electrically detect the depression operation in response to the button elements.

The volume adjustment operation unit 18 is an operation unit that operates when the amplitude of the acoustic signal input to the amplifier 56 is adjusted. In the first embodiment, the volume adjustment operation unit 18 has a cylindrical rotation operation unit and a rotary encoder that detects a rotation operation corresponding to the rotation operation unit.

The display device 19 has a display panel such as a liquid crystal, and a device that appropriately displays various states of the acoustic device in characters, figures, and the like.

Further, the sound setting button 20 is an operation unit that operates when the reverberation time is adjusted. The equalizer button 21 is an operation unit that operates when a filter (not shown) disposed in the front stage of the amplifier 56 is used/not used and frequency characteristics are set. The display color setting button 22 is an operation unit that operates when the display color of the display device 19 is changed. In the first embodiment, the buttons 20 to 22 each have a button element and a push switch that detects a pressing operation corresponding to the button element.

As described above, the UI unit 31 including the operation unit and the display unit is disposed on the front panel of the acoustic device 1.

Then, the acoustic device 1 has therein an acoustic sound reproducing unit 32 that outputs an acoustic signal from any of the acoustic signal output devices, and a control unit 33 that controls the inside of the acoustic device 1.

First, the sound reproducing unit 32 includes a CD reproducing unit 51 as an audio signal output device, an MD reproducing unit 52, a radio broadcast receiving unit 53, a source selector 54, an electronic volume meter 55, and an amplifier 56.

The CD reproducing unit 51 is a media reproducing device that reads audio data from a CD as a recording medium and outputs it as a digital or analog audio signal.

The CD reproducing unit 52 is a media reproducing device that reads audio data from an MD as a recording medium and outputs it as a digital or analog audio signal.

Further, the CD reproducing unit 51 and the MD reproducing unit 52 are pluggable recording media, and read the audio data stored in the recording medium and reproduce the audio signal from the audio data to output the media reproducing device. Then, the CD reproducing unit 51 and the MD reproducing unit 52 are source devices that provide source types "CD" and "MD", respectively, and are audio signal output devices that output audio signals.

The radio broadcast receiving unit 53 is a broadcast receiving device that is connected to an antenna and modulates an electromagnetic wave or a radio wave induced by the antenna to output a digital or analog audio signal.

Further, the radio broadcast receiving device 53 is an audio signal output device that supplies source devices of the source types "FM1", "FM2", and "AM" and outputs an audio signal. Here, "FM1" constitutes a source for a group including a predetermined number of FM radio stations, and "FM2" constitutes a source for another group including a predetermined number of FM radio stations. However, when "FM1" or "FM2" is selected as the source type, the reception frequency can be changed to a frequency other than the "FM1" or "FM2" broadcast station by operating the tuning operation unit 16. Further, "AM" is a group including a predetermined number of AM radio stations, and the tuning operation unit 16 is operated to change the reception frequency to a frequency other than the "AM" broadcasting station.

The source selector 54 is a device that supplies a control signal, selects any one of a plurality of inputs corresponding to the control signal, and outputs the selected input signal. In the first embodiment, the source selector 54 selects one of the audio signals from the CD reproducing unit 51, the MD reproducing unit 52, and the radio broadcast receiving unit 53 in response to the control signal from the MPU 62, and outputs the selected audio signal. .

Further, the electronic volume meter 55 is a circuit that supplies a control signal and adjusts the amplitude of the acoustic signal in response to the control signal. The amplifier 56 increases the amplitude of the audio signal and outputs it to a circuit such as a speaker.

On the other hand, the control unit 33 includes a source control unit 61, an MPU 62, and a state storage unit 63.

The source control unit 61 controls the CD reproduction unit 51, the MD reproduction unit 52, and the radio broadcast reception unit 53 while controlling the supply of the control signals by the CD reproduction unit 51, the MD reproduction unit 52, and the radio reception unit 53. The various states of the CD reproducing unit 51, the MD reproducing unit 52, and the radio broadcast receiving unit 53 are detected.

The micro processing unit (MPU) 62 is a program in the calculation unit, and executes a program stored in a memory medium such as a ROM or a flash memory (not shown), and is based on the CD reproduction unit 51, the MD reproduction unit 52, and the radio broadcast reception unit 53. The state and the operation of the UI unit 31 by the user, etc., control the UI unit 31, and indirectly, directly or via the source control unit 61. At the same time as the sound reproduction unit 32, the information processing in the control unit 33 is executed.

The MPU 62 has a function of a state transition device that switches the operation state of the entire acoustic device 1 including the source selection device between the standby state and the power-on state.

In the standby state, the UI unit 31 and the control unit 33 (or the control unit 33 only) are supplied with power from the power source, but the CD reproduction unit 51, the MD reproduction unit 52, and the radio broadcast reception unit from the sound reproduction unit 31. 53 does not output the status of the audio signal. In the first embodiment, even if the power is supplied to the CD reproduction unit 51 and the MD reproduction unit 52 in the standby state, the CD reproduction unit 51 and the MD reproduction unit 52 can be used to exit the CD and the MD. Further, in the first embodiment, the power supply to the electronic volume meter 55 and the amplifier 56 is stopped in the standby state.

On the other hand, in the power-on state, power from the power source is supplied to all of the UI unit 31, the sound reproducing unit 32, and the control unit 33, and at least one of the CD reproducing unit 51, the MD reproducing unit 52, and the radio broadcast receiving unit 53 can output. The status of the audio signal or the audio signal being output. That is, if the audio signal is being output, the power is turned on, and during the search by the broadcast station, the user temporarily stops the operation, and even if the audio signal is not output temporarily, the power is turned on if the device is in the active state.

Then, in the acoustic device 1 of the first embodiment, for example, if the start button is located at the auxiliary device position (ACC), it is in the standby state. In the standby state, when the predetermined operation unit of the audio device 1 is operated (in the first embodiment, the rotation operation unit 11f of the source selection UI unit 11 to be described later), the MPU 62 electrically detects the operation via the source control unit. 61 or directly control the sound reproducing unit 32 to switch to the power-on state. In the power-on state, when the predetermined operation unit of the audio device 1 is operated (in the first embodiment, the rotation operation unit 11f of the source selection UI unit 11 to be described later), the MPU 62 electrically detects the operation via the operation. The source control unit 61 directly controls the sound reproducing unit 32 to switch to the standby state. Further, the MPU 62 also switches the operation state of the control unit 33 between the standby state and the power-on state, and changes the display mode of the source type of the source selection UI unit 11 in accordance with the state.

The state storage unit 63 is a circuit or device that stores information on the current and/or past states of the UI unit 31, the sound reproduction unit 32, and the control unit 33. In the first embodiment, the state storage unit 63 stores a series of pieces of information of the history of the source type selected now and/or in the past. In the standby state, the state memory unit 63 memorizes the source type information of the source type selected in the past according to the selection order, and in the power-on state, the source type information of the currently selected source type is first recorded and memorized, after the second bit. The source type information of the source type selected in the past is stored in the order of selection. Further, a volatile or non-volatile memory, a magnetic recording medium, or the like is applied to the state memory unit 63.

Fig. 3 is a front elevational view showing the detailed structure of the source selection UI unit 11 in Fig. 1. Fig. 4 is a perspective view showing a detailed structure of the source selecting unit 11 in Fig. 1.

As shown in FIG. 3 and FIG. 4, in the source selection UI unit 11, a display indicating the state (selection, selection, and non-selectability) of each source type is arranged on the ring-shaped source type display unit. In the windows 11a to 11e, a cylindrical rotary operation portion 11f is rotatably disposed inside the annular source type display portion. In the annular source type display portion, only the display windows 11a to 11e are transparent, and the other portions are colored, and the light penetrating from the inside to the surface is blocked. Each display window 11x (x=a, b, c, d, e) has a shape of a character string indicating the source type, and corresponds to the source types "CD", "MD", "FM1", "FM2", "AM". "."

Then, a light-emitting element such as a light-emitting diode (LED) is disposed in each of the display windows 11x (x = a, b, c, d, e), and a rotary encoder and a push-on mechanism are provided on the rotary operation portion 11f. Connected to the ground.

Fig. 5 is a detailed circuit diagram showing the electrical configuration of the source selection UI unit 11 and its drive circuit in Fig. 1. Further, the circuit shown in FIG. 5 is only an example, and other circuits may be used in the same manner as the other circuits.

In Fig. 5, the light-emitting diodes LEDr1, LEDg1 are red and green light-emitting elements that enter light toward the display window 11a. The light-emitting diodes LEDr2 and LEDg2 are red and green light-emitting elements that enter light toward the display window 11b. The light-emitting diodes LEDr3 and LEDg3 are red and green light-emitting elements that enter light toward the display window 11c. The light-emitting diodes LEDr4 and LEDg4 are red and green light-emitting elements that enter light toward the display window 11d. The light-emitting diodes LEDr5 and LEDg5 are red and green light-emitting elements that enter light toward the display window 11e.

Further, the transistors Qr1 and Qg1 are switching elements that respectively turn on or off the light-emitting diodes LEDr1 and LEDg1. The transistors Qr2 and Qg2 are switching elements that respectively turn on or off the light-emitting diodes LEDr2 and LEDg2. The transistors Qr3 and Qg3 are switching elements that respectively turn on or off the light-emitting diodes LEDr3 and LEDg3. The transistors Qr4 and Qg4 are switching elements that respectively turn on or off the light-emitting diodes LEDr4 and LEDg4. The transistors Qr5 and Qg5 are switching elements that respectively turn on or off the light-emitting diodes LEDr5 and LEDg5.

The transistors Qr1 to Qr5 and Qg1 to Qg5 are all connected to the MPU 62. It is ON/OFF corresponding to the level of the control signal from the MPU 62. In the circuit of Fig. 5, the transistors Qr1 to Qr5 and Qg1 to Qg5 are N-type (NPN type) semiconductors, the emitters of which are grounded, and the collectors of which are connected to the corresponding light-emitting diodes (LEDr1 to LEDr5, LEDg1~). The cathode of LEDg5). Further, the anodes of the LEDs LEDr1 to LEDr5 and LEDg1 to LEDg5 are connected to the power source line Vcc via the resistor R1.

On the other hand, in the rotation operation portion 11f, the rotary encoder ENC is mechanically coupled to the push switch SW. The rotation operation portion 11f is rotatable in a clockwise direction or a counterclockwise direction, and is non-mechanically engaged at a predetermined rotation angle. The rotary encoder ENC is an element that outputs a pulse signal, and the pulse signal includes a number of pulse signals proportional to the rotation angle of the rotational operation portion 11f, and the push switch SW is ON/OFF corresponding to the depression operation of the rotational operation portion 11f. element. The output line of the rotary encoder ENC is connected to the MPU 62. Further, one end of the push switch SW is grounded, and the other end is pulled up to the power supply voltage via the resistor R2, and is connected to the MPU 62 at the same time. Further, between the push switch SW and the MPU 62, a waveform trimming circuit can be provided in order to accurately detect the pressing operation.

Next, the operation of the above device will be described.

Fig. 6 is a block diagram showing the operation of the acoustic device 1 incorporated in the source selecting device of the first embodiment. Fig. 7 is a view showing a control mode in which the MPU 62 controls the light-emitting diodes LEDri and LEDgi (i = 1, ..., 5) in the first embodiment. Fig. 7(A) shows the control mode in the standby state, and Fig. 7(B) shows the control mode in the power-on state.

First, when the audio device 1 is electrically connected to, for example, a power source of a battery for a vehicle, the MPU 62 is activated to start execution of a predetermined program, and the operation state of the audio device 1 is in a standby state (step S1).

Next, the MPU 62 reads the source type information stored in the state storage unit 63, and displays the source type indicated by the source type information as the source type automatically selected when switching to the power-on state, and is displayed by the source selection UI unit 11 ( Step S2). At this time, as shown in FIG. 7(A), the MPU 62 lights up the green light-emitting diode LEDgj corresponding to the source type, corresponding to the green light-emitting diode LEDgk(k≠j) of other source types, and makes all The red LEDs LEDr1~LEDr5 are extinguished.

Further, when the state storage unit 63 does not store the source type information, the MPU 62 selects a predetermined source type (for example, "AM") as the source type that is automatically selected when the power is turned on, and memorizes the source type in the state memory. At the same time as the portion 63, the source selection UI unit 11 is also displayed.

After that, the MPU 62 detects whether or not there is a power-on operation in the standby state (step S3), and monitors whether or not the exit of the recording medium is generated for the source type in the display of the source selection UI unit 11 (step S4).

The MPU 62 determines whether or not a power-on operation is generated based on the output voltage of the push switch SW of the source selection UI unit 11. Further, the MPU 62 determines whether or not the exit of the recording medium regarding the source type being displayed is generated based on the control signal detected by the source control unit 61 from the CD reproducing unit 51 or the MD reproducing unit 52.

Then, when the recording medium of the source type of the display is elapsed, the MPU 62 switches the display of the source type automatically selected when the power is turned on (step S5). At this time, the MPU 62 reads out the next source type information of the source type information of the source type before the display switching in the state memory unit 63, and uses the source type as the source type after the display switching. Further, the MPU 62 deletes the source type information indicating the source type before switching from the state storage unit 63, and displays the source type information of the source type after the switching as the first (step S6).

For example, in the state memory unit 63, the two source type information is stored in a new order in the order of "CD, "FM1", and when the source type "CD" is displayed in step S2, the CD is reproduced from the CD reproducing unit 51. When exiting, the MPU 62 turns off the light-emitting diode LEDg1 of the source type "CD", and turns on the light-emitting diode LEDg3 of the source type "FM1". Thereafter, the light-emitting diode LEDg3 is turned on in step S2.

Further, for example, in the state memory unit 63, the three source type information are stored in a new order in the order of "CD", "MD", and "FM1", and when the source type "CD" is displayed in step S2, When the CD is retracted from the CD reproducing unit 51, the MPU 62 turns off the light-emitting diode LEDg1 of the source type "CD", and turns on the light-emitting diode LEDg2 of the source type "MD". After the MD is retracted from the MD regeneration unit 52, the MPU 62 turns off the light-emitting diode LEDg2 of the source type "MD", and turns on the light-emitting diode LEDg3 of the source type "FM1". However, in the standby state, the three source type information is stored in the new order in the order of "CD", "MD", and "FM1", and the source type "CD" is displayed in step S2. In this case, when the recording medium (MD) of the source type "MD" that is not displayed is exited, the MPU 62 deletes the source type information of "MD" stored in the state memory unit 63. At this time, the MPU 62 continues to illuminate the light-emitting diode LEDg1 of the source type "CD".

Further, in the MPU 62, as shown in Fig. 7(A), when the exit of the recording medium is detected, the light-emitting diode LEDgi (i = 1, ..., for the source type of the recording medium is obtained until the exit operation is completed. 5) Extinguished.

As described above, in the standby state, the source type automatically selected when shifting to the power-on state is displayed based on the source type information stored in the cap storage unit 63.

In the standby state, the MPU 62 corresponds to the depression operation of the rotation operation portion 11f of the source selection UI unit 11 in accordance with the voltage of the output line of the push switch 11f in the source selection UI unit 11, that is, when the voltage start operation is determined. The operating state of the acoustic device 1 is switched to the voltage activated state (step S7). Thereby, electric power is supplied to the entire sound generation unit 32.

Moreover, when shifting to the power-on state, the MPU 62 changes the display mode of the source selection UI unit 11 from the standby state. In the power-on state, the MPU 62 displays the selected source category in the same state, and the selectable source category is displayed in the second state. In the first embodiment, the MPU 62, as shown in Fig. 7(B), causes the red light-emitting diode LEDr j (j = 1, ..., 5) of the source type to be selected in the power-on state. Bright, the green light-emitting diode LEDgk(k≠j) of the selected source type is lit, and the other light-emitting diodes LEDrp(p≠j) and LEDgq(q≠j) are extinguished. At this time, the MPU 62 specifies whether or not the CD insertion CD reproducing unit 51 can reproduce and whether the MD insertion MD reproducing unit 52 can reproduce it via the control unit 61, and determines whether or not the source types "CD" and "MD" are selectable source types. In other words, if the CD is inserted into the CD reproducing unit 51, the source type "CD" is judged to be selectable because the audio signal can be output, otherwise the source type "CD" is determined to be unselectable.

Then, the MPU 62 reads the source type information stored in the head of the state memory unit 63, and the source selector 64 selects the input of the audio signal output device corresponding to the source type indicated by the source type information (step S8). The source type selected at this time is the same as the source type displayed in step S2.

Further, the MPU 62 supplies the information of the type of the audio signal output device (and the source type according to the need) to the source control unit 61, and the source control unit 61 supplies the control signal to the audio signal output device to output the audio signal of the source type. (Step S9).

Thereby, the audio signal output from any of the audio signal output devices (either the CD reproduction unit 51, the MD reproduction unit 52, and the radio broadcast reception unit 53) is supplied from the source selector 54 to the electronic volume meter 55. The electronic volume meter 55 adjusts the amplitude of the audio signal corresponding to the control signal from the MPU 62. Further, the MPU 62 supplies the control signal to the electronic volume meter 55 in accordance with the amount of operation detected from the sound adjustment operation unit 18. Then, the audio signal output from the electronic volume meter 55 is amplified by the amplifier 56, and the amplified audio signal is output to the speaker or the like. Further, the filter and the effector (not shown) provided in the front stage of the amplifier 56 correspond to the operation of the acoustic characteristic setting button 20 and the equalizer button 21, and the solid line reverberation is based on the control signal from the MPU 62. Time characteristics and frequency characteristics.

As described above, when the power-on operation is detected, the MPU 62 automatically starts outputting the audio signal of the source type displayed on the source selection UI unit 11 in the standby state with respect to the sound reproduction unit 32.

In the power-on state, the MPU 62 monitors whether or not the source type switching operation (step S10) occurs, whether or not the recording medium is ejected (step S11), and whether or not the power-off operation (operation to shift to the standby state) occurs (step S12).

The MPU 62 determines whether or not the source type switching operation is generated based on the signal of the rotary encoder ENC of the source selection UI unit 11. The MPU 62 specifies an operation direction and an operation amount corresponding to the rotation operation of the rotation operation portion 11f of the source selection UI unit 11 based on the signal, and determines that the source type and other types in the current selection are selected corresponding to the operation direction and the operation amount. The source of the type of operation. The MPU 62 specifies the source type and other source types in the current selection in accordance with the operation direction and the operation amount of the source type conversion operation. At this point, the MPU 62 specifies only other source categories from the selectable source categories at this point in time.

When the source type conversion operation occurs, the MPU 62 first memorizes the source type information of the converted source type in the state storage unit 63 (step S13). At this time, the source type information is inserted into the state memory unit 63 to be memorized. In other words, the other existing source type information in the state storage unit 63 is neither written up nor deleted.

Next, the MPU 62 displays the converted source type in a different manner from the other selectable source types in the source selection UI unit 11, and the source selector 54 selects an input corresponding to the audio signal output device of the source category ( Step S14). In the first embodiment, the display of the source type selected after the conversion changes from green to red, and the display of the source type selected before the conversion changes from red to green.

Then, the MPU 62 supplies information corresponding to the audio source output device (and the source type according to the required source type) corresponding to the converted source type to the source control unit 61. The source control unit 61 stops the output of the audio signal of the source type before the conversion based on the information, and starts the output of the audio signal of the source type after the conversion (step S15).

Thereafter, the MPU 62 returns to the monitoring state of steps S10 to S12.

On the other hand, the MPU 62 determines whether or not the exit of the recording medium has occurred based on the control signal from the CD reproduction unit 51 or the MD reproduction unit 52 detected by the source control unit 61.

Then, when the recording medium exits, the MPU 62 deletes the source type information of the source type from which the exit occurred, from the state storage unit 63 (step S16). Further, the MPU 62 determines whether or not the source type of the exit is the reproduction (step S17). Moreover, when the exit occurs, the display of the source type is changed to a green dot when the exit is completed.

When the source type of the exit is the reproduction, the MPU 62 reads the source type information of the head from the state storage unit 63 (step S18). Further, in step S16, since the source type information of the source type in which the exit occurs is deleted, the source type information read in step S18 displays the source type selected by one of the source types from which the exit is generated.

Then, the MPU 62 displays the source type indicated by the source type information in the source selection UI unit 11, and the input of the audio signal output device corresponding to the source type is selected by the source selector 54 (step S14). In the first embodiment, the display of the newly selected source type is changed from green to red, and the source type of the exit is changed from red to extinguished.

Then, the MPU 62 supplies information corresponding to the audio signal output device (and the source type according to the demand) of the source type to the source control unit 61. The source control unit 61 stops the output of the audio signal of the source type of the exit based on the information, and starts outputting the audio signal of the newly selected source type (step S15).

Thereafter, the MPU 62 returns to the monitoring state of steps S10 to S12.

When the exit of the recording medium occurs, and the source type of the exit is not in the reproduction, the MPU 62 changes the display of the source selection UI unit 11 for the source type because the source type that is selectable before exiting becomes unselectable. Stop (step S19). In the first embodiment, when the source type is not regenerated, the display of the source type is changed from green display to no display (extinction).

Thereafter, the MPU 62 returns to the monitoring state of steps S10 to S12.

On the other hand, the MPU 62 determines whether or not a power-on operation has occurred based on the voltage of the output line of the push switch SW of the source selection UI unit 11 (step S12). In other words, when the power supply is activated, if the rotation operation unit 11f corresponding to the source selection UI unit 11 performs a depression operation, it is determined that the power supply is started.

In the power-on state, the MPU 62 determines that the pressing operation corresponding to the rotation operation portion 11f of the source selection UI unit 11 occurs, that is, the power-on operation occurs, based on the voltage of the output line of the push switch 11f of the source selection UI unit 11. The operation state of the acoustic device 1 is switched to the standby state (step S1). Thereby, the output of the audio signal is stopped by the control of the MPU 62, and the display of the source type in the source selection UI unit 11 is also changed to the above-described display mode of the standby state.

Further, when the power is turned off (from the power-on state to the standby state), in the state memory unit 63, the source type information of the head is the source type selected until the power is turned off, and in the standby state, only the source The type is displayed by the UI unit 11, and in principle, the source type is automatically selected when switching to the next power-on state. However, the type of source selected before the power is turned off is the source type of the media playback device, and in the standby state, when the recording medium is extracted from the media playback device, the source type selected in the source category is selected. Further, since the previous selected source type is the media reproducing device and the recording medium is extracted from the media reproducing device, the source type selected again is selected.

As described above, the source type of the media playback device may be unselectable in the standby state, and at least one of the source type information of the source type other than the source type of the media playback device is preferably stored in the state storage unit 63.

As described above, the acoustic device 1 has an operation state of either the standby state or the power-on state, and changes the display mode of the source type of the source selection UI unit 11 in accordance with the operation state, and corresponds to the source of the media reproduction device. The type can be selected to dynamically change the display of the source category.

Here, an example of display change in the source type of the source selection UI unit 11 will be described in accordance with the source type switching operation and the exit of the recording medium. Fig. 8 is a view showing an example of display change in the source type of the source selection UI unit 11 in response to the source type conversion operation and the exit of the recording medium in the first embodiment.

The state 1 in Fig. 8 is a state in which the power is turned on, and the state of the previous source type is selected to detect the power-on start operation. In state 1, since the source type "FM1" is selected, the source type "FM1" is displayed, and LEDr3 is lit red. Further, in the state 1, since the CD is inserted, the source types "CD", "FM2", and "AM" are judged to be selectable and displayed, and the LEDs 1, 4, and 5 are lit green. At this time, since the MD is in an uninserted state, the source type "MD" is turned off.

Further, in the drawing, for the convenience of explanation, the bright red lamp is a thick-word writing body, the bright green lamp is a black-framed writing body, and the light-extinguishing person is represented by a black dotted frame outline. The drawings other than the 8th figure are also the same expression.

In the state 1, the rotation operation unit 11f selects the selectable source type "CD" adjacent to the "FM1" counterclockwise direction when the operation amount of the predetermined rotation angle portion is detected in the counterclockwise rotation direction. At this time, even if the rotation operation in the counterclockwise rotation direction is detected, since the source type "MD" is turned off and is not selectable, it is not selected.

Further, in this case, if the operation amount of the predetermined rotation angle is detected in the clockwise direction, the source type "FM2" is selected, and if the operation amount of the predetermined rotation angle is detected in the same direction, the selection of "FM2" is selected. Released, and the source type "AM" was selected.

In this manner, the MPU 62 selects the rotation operation amount corresponding to one of the source types displayed by the source selection UI unit 11 detected by the rotary encoder ENC. At this time, when the amount of rotation operation detected by the rotary encoder ENC exceeds the amount of rotation operation for selecting the first or last source type of the arrangement of the source type, the MPU 62 selects the arrangement of the source type corresponding to the rotation operation direction. The initial or final source category. In the first embodiment, in the state 1 of the eighth embodiment, the rotation operation portion 11f is rotated in the counterclockwise direction by a predetermined angle or more, and the source type "CD" of the end portion located on the display side of the source type is often selected. . Further, the rotation operation portion 11f is rotated in a clockwise direction at a predetermined angle or more, and the source type "AM" at the other end portion is often selected. Further, if the "CD" is not displayed and the "FM1", "FM2", and "AM" are displayed in the state 1, the "FM1" being selected is the end, regardless of the rotation operation portion 11f. Rotate counterclockwise a few times and "FM1" will continue to be selected.

Then, when the CD operation selection described above occurs in the state 1, the source selection UI unit 11 and the state memory unit 63 shift to the state 2.

In the state 2, the source type information at the head of the state memory unit 63 is "CD", and the next source type information is "FM1" selected under the state 1. Also in state 2, since the source type "CD" is selected, the source type "CD" is displayed, and LEDr1 is lit red. Further, in the state 2, it is determined that the source types "FM1", "FM2", and "AM" can be selected, so that the LEDs 3, 4, and 5 are lit green. At this time, since the MD is in an uninserted state, the source type "MD" is turned off.

In the state 2, when the CD is ejected, the source selection UI unit 11 and the state storage unit 63 shift to the state 3.

In the state 3, the source type "CD" is unselectable due to the CD exit, and the source type information of the "CD" is deleted from the state storage unit 63, and the source type information of the head in the state memory unit 63 becomes "FM1". Then, the source type "FM1" is selected. Therefore, in the state 3, since the source type "FM1" is selected and the source type "FM1" is displayed, the LEDr3 lights up in red. In state 3, the source types "FM2" and "AM" are judged to be selectable, and LEDg4 and 5 are lit green. At this time, both MD and CD are uninserted, and the source types are "CD" and "MD". Turn off the lights.

On the other hand, when the power-on operation is performed in the state 2, the source selection UI unit 11 and the state storage unit 63 shift to the state 4. Since the state 4 is in the standby state, the source type "CD" corresponding to the source type information of the head of the state memory unit 63 is displayed in green, and the other source types are not displayed.

Then, in the state 4, when the power-on operation is detected, the source selection UI unit 11 and the state memory unit 63 shift to the state 5. The state 5 is the power-on state, and the "CD" corresponding to the source type information of the head of the state memory unit 63, that is, the "CD" which is displayed in green in the standby state is automatically selected. In state 5, the source type "CD" is displayed in red, and the selectable "FM1", "FM2", and "AM" are displayed in green. At this time, the application is not inserted in the MD, so "MD" is not displayed.

On the other hand, in the state 4, when the exit of the CD is detected, the source selection UI unit 11 and the state storage unit 63 shift to the state 6. By the ejection of the CD, the source type information of "CD" in the state memory unit 63 is deleted, and the source type information of "FM1" becomes the leading. Since the state 6 is in the standby state, the source type "FM1" corresponding to the source type information of the head of the state memory unit 63 is displayed in green, and the other source types are not displayed.

As described above, according to the first embodiment, the source selection UI unit 11 as the display device displays a plurality of source types of one or a plurality of source devices, respectively. Further, the MPU 62 as the state transition device switches the operation state of the acoustic device 1 between the standby state and the power-on state. Further, the state storage unit 63 as a memory device memorizes the source type selected in the power-on state. Then, the MPU 62 as the source type selection means controls the source selection UI unit 11 in the standby state, and displays the source type indicated by the source type information stored in the state storage unit 63 among the plurality of source types. Further, the MPU 62 as the source type selection means selects one of a plurality of source selection types, and selects the source indicated by the source type information stored in the state storage unit 63 when the operation state is switched from the standby state to the power-on state. kind. In particular, in the standby state, the MPU 62 displays the source type indicated by the source type information stored in the state memory unit 63 in a plurality of source types and the source type of the remaining audio signal output devices.

Thereby, the source type initially selected at the time of power-on conversion can be simply confirmed in the standby state.

Further, according to the first embodiment, the state storage unit 63 stores the source type information indicating the source type of the media playback device and the source type information indicating the source type selected by the source type. Further, when the MPU 62 displays the source type of the media playback device in the standby state, if the exit of the recording medium is detected, the MPU 62 refers to the source type information in the state storage unit 63, and controls the source selection UI unit 11 to stop the recording. The display of the source type of the media playback device displays the previously selected source type of the source type of the media playback device.

Thereby, even if the source type originally selected at the time of power-on conversion is unable to be selected due to the exit of the recording medium, the alternative source type can be simply confirmed in the standby state.

Further, according to the first embodiment, when the source type information of the media playback device that has detected the exit of the recording medium in the standby state is stored in the state storage unit 63, when switching from the standby state to the power-on state, the MPU 62 is based on the MPU 62. The source type information stored in the state memory unit 63 selects the previously selected media type of the source type of the media playback device.

Thereby, even if the source type originally selected at the time of power-on conversion cannot be selected due to the exit of the recording medium, the alternative source type is automatically selected, and the alternative source type can be simply confirmed in the standby state.

Further, according to the first embodiment, the MPU 62 specifies whether or not the audio signal can be output for the source type of the plurality of audio signal output devices in the standby state, and controls the source selection UI unit 11 to select among the source types of the outputtable audio signals. The first state of the source type (here is a bright red light) is displayed, and the remaining source types are displayed in a second state different from the first state (here, a bright green light), and the audio signal cannot be output. The source type is not displayed.

Thereby, when the user selects a source type other than the source type in the current selection, the selection foot can be easily confirmed.

Further, according to the first embodiment, the push switch SW as the first operation detecting means is rotatable and detects the pressing operation for the depressible rotating operation portion 11f, and the rotary encoder ENC pair as the second operation detecting means The rotation operation portion 11f detects a rotation operation. When the push switch SW detects the depression operation by the push switch SW, the MPU 62 alternately switches the operation state of the acoustic device 1 between the standby state and the power-on state. In addition, the source type display unit of the source selection UI unit 11 is disposed in the peripheral direction in the rotation operation unit 11f, and is in a state of being turned on and off. The source type is displayed for each source type. Then, in the state where the power is turned on, the MPU 62 selects one of the source types that can output the acoustic output signal corresponding to the rotation operation detected by the rotary encoder ENC, thereby converting the power on state and the standby state. The operation unit for selecting the source type and the display of the source type in each operation state are concentrated in one position of the source selection UI unit 11, and the user can easily understand the meaning of the source type display in each state.

Further, according to the first embodiment, when a plurality of broadcast stations of the same modulation method that can be received by the broadcast receiving apparatus are preset to a plurality of groups, each group of the plurality of groups preset by the broadcast receiving apparatus is used as One source type, the source type display unit of the source selection UI unit 11, and a plurality of source types are displayed and displayed. In particular, in the first embodiment, the source selection UI unit 11 presets a predetermined number of FM stations to a first FM station group and a predetermined number of other FM station presets for the broadcast receiving device that receives the FM broadcast and the AM broadcast. The second FM station group and the predetermined number of AM stations are preset to be AM group groups and displayed as source types.

Thereby, the number of operations of the user's channel selection is reduced, and the user can simply select the desired station from a plurality of stations.

Further, according to the first embodiment, the rotary encoder ENC, which is the rotation operation detecting means, detects the rotation operation of the rotation operation portion 11f which can continuously perform the plurality of rotations. The source type display unit of the source selection UI unit 11 displays a plurality of source types of one or a plurality of source devices arranged in the peripheral direction around the rotation operation unit 11f. Then, the MPU 62 selects one of the source types displayed by the source type display portion corresponding to the rotation operation detected by the rotary encoder ENC, and the rotational operation amount detected by the transcoder ENC exceeds the arrangement of the selected source type. The initial or final source type of the source type is selected corresponding to the rotational operation direction when the amount of rotation of the initial or last source type is selected.

Thereby, since the selection leg of the end of one side of the arrangement of the source type is not directly moved to the end of the other side, even when the universal operation portion that can be continuously rotated is used, the selection end selection can be simply performed. Foot operation.

According to the first embodiment, the MPU 62 as the determination means determines whether or not each source device can output the source signal of each source type. The source selection display unit of the source selection UI unit 11 determines that only the source type of the source signal can be output. The periphery of the rotation operation portion 11f is displayed in the peripheral direction.

Thereby, even if the first or last source type of the arrangement of the source type is changed, if the amount of the rotation operation exceeds, the selection end selection can be simply performed because the source type is often selected at the beginning or the end. Foot operation.

Embodiment 2

The acoustic device according to the second embodiment of the present invention is a device that switches the display mode of the source selection UI unit 11 when listening to traffic information in addition to the configuration of the first embodiment. In the second embodiment, traffic information is not one of the source types. Further, the structure of the acoustic device of the second embodiment is the same as that of the first embodiment, but the control of the MPU 62 is changed from the first embodiment.

Next, the operation of the acoustic device when the traffic information is heard in the second embodiment will be described. Fig. 9 is a view showing a control form of the light-emitting diodes LEDri and LEDgi (i = 1, ..., 5) by the MPU 62 when the traffic information is heard in the second embodiment. The 9th (A) diagram shows the control mode in the power-on state, and the 9th (B) diagram shows the control mode in the standby state.

In the power-on state, when the MPU 62 selects any of the source types, if the depression operation corresponding to the tuning operation portion 16 is detected, the source selector 54 selects the input of the radio broadcast receiving portion 53, and the source control The unit 61 supplies an instruction to start listening to traffic information.

The source control unit 61 controls the radio broadcast receiving unit 53 based on the command, and sets the modulation method and the reception frequency to the modulation method and frequency determined by the traffic information broadcast station, and outputs an audio signal.

Thereby, the audio signal of the traffic information is output to the speaker.

Thereafter, when the depression operation corresponding to the tuning operation unit 16 is detected, the MPU 62 reads the source type information at the head of the state storage unit 63, and specifies the source type indicated by the source type information, and is selected by the source selector 54. Input from an audio signal output device of the source type.

Thereby, after the traffic information is heard, the source type before the traffic information selection is automatically selected, and the audio signal of the source type is output to the speaker or the like.

In the series of places, when the pressing operation of the tuning operation unit 16 corresponding to the start of listening to the traffic information is detected, the MPU 62 changes the display mode of the source selection UI unit 11 and starts to listen to the source type before the traffic information ( That is, the source type indicated by the source type information at the head of the state memory unit 63 is displayed in another form. Moreover, the source type before the traffic information is started is the source type after the traffic information is heard.

In the second embodiment, as shown in Fig. 9(A), the MPU 62 emits light emitting diodes ri, gi corresponding to both the red and green colors of the source type, and the source type is indicated by orange. Moreover, although other source types are not normally displayed, the source type corresponding to the recording medium is flashed with a green light during the CD or MD ejection.

On the other hand, if the depression operation corresponding to the tuning operation unit 16 is detected in the standby state, the MPU 62 selects the input from the radio broadcast receiving unit 53 by the source selector 64, and supplies the start of the traffic to the source control unit 61. Information instructions. The source control unit 61 controls the radio broadcast receiving unit 53 based on the command to output an audio signal of the traffic information.

Thereby, the audio signal of the traffic information is output to a speaker or the like.

After that, when the depression operation corresponding to the tuning operation unit 16 is detected, the MPU 62 stops the output of the acoustic signal from the radio broadcast receiving unit 53 via the source control unit 61, and shifts the operation state to the standby state.

In this way, after the traffic information is heard, it automatically returns to the standby state before the traffic information is heard.

In the series of places, when the pressing operation of the tuning operation unit 16 corresponding to the start of listening to the traffic information is detected, the MPU 62 changes the display mode of the source selection UI unit 11. After the traffic information is heard, the operation state of the audio device 1 returns to the standby state. As shown in the figure 9 (B), all the source types are not displayed until the traffic information is heard.

Here, an example of the display change of the source type of the source selection UI unit 11 will be described from the start of listening to the traffic information. In the second embodiment, in the case where the traffic information is heard in the power-on state, the display change of the source type of the source selection UI unit 11 is completed from the start of the listening of the traffic information. In the second embodiment, in the case where the traffic information is heard in the standby state, the display change of the source type of the source selection UI unit 11 is completed from the start of the listening of the traffic information.

In Fig. 10, in state 2, the source type "CD" is selected and displayed in red. The selectable "FM1", "FM2", and "AM" are displayed in green, and the unselectable "MD" is not displayed. .

In the state 2, when the operation of starting to listen to the traffic information is detected, the MPU 62 changes the display mode and switches the display state to the state 7. In state 7, the MPU 62 displays the selected "CD" in orange, and stops the display of other source types. Further, in Fig. 10, due to the limitation of the drawing, the source type of orange is the same as the source type of red, and the list of characters in bold is present (the same is true for other drawings).

Thereafter, in the state 7, when the operation of the traffic information listening is detected, the MPU 62 changes the display mode and switches the display state to the state 2. State 2 is the state before the traffic information is started.

On the other hand, in the state 7, in the case where the CD is ejected in the traffic information, the MPU 62 switches the display state of the source selection UI unit 11 to the state 8. In other words, the MPU 62 deletes the source type of the "CD" in the state memory unit 63, and then selects "FM1" indicated by the source type information in the head, and listens to the traffic information, "FM1". Expressed in orange.

Thereafter, in state 8, the MPU 62 changes the display mode when the traffic information is detected to be heard, and switches the display state to state 9. In state 9, the MPU 62 automatically selects the source type information indicating "FM1" in the state memory unit 63, and outputs the audio signal from "FM1" while indicating the "FM1" in red. Also, the selectable "FM2" and "AM" are shown in green.

On the other hand, in the state 4 in the standby state, the source type information at the head of the state memory unit 63 is "CD", "CD" is displayed in green, and other source types are not displayed.

In state 4, when detecting the above-described operation of starting to listen to traffic information, the MPU 62 changes the display mode and switches the display state to state 10. In state 10, all source categories are stopped.

Thereafter, in state 10, the MPU 62 changes the display mode and detects the display state to state 4 when detecting that the traffic information has been listened to. State 4 is the state before the traffic information is started.

On the other hand, in the state 10, in the case where the CD is ejected in the traffic information listening, the MPU 62 switches the display state of the source selection UI unit 11 to the state 11. That is, the MPU 62 deletes the source type information of "CD" in the state memory unit 63 in response to the CD ejection.

Thereafter, in the state 11, the MPU 62 changes the display mode and detects the display state to the state 12 when detecting that the traffic information has been listened to. In the state 12, the MPU 62 selects "FM1" indicated by the source type information at the head of the state memory unit 63, and in the standby state, "FM1" is indicated in green.

Further, since the other operation of the acoustic device of the second embodiment is the same as that of the first embodiment, the description thereof will be omitted.

As described above, according to the second embodiment, the source selection UI unit 11 as the display device displays a plurality of source types including one or a plurality of audio signal output devices of the broadcast receiving device. Further, the MPU 62 as the state transition means selects one of a plurality of source types. Further, the state storage unit 63 as the memory device memorizes the source type information indicating the source type selected by the MPU 62. Then, the rotation operation unit 11f as the specific purpose operation unit is operated when the start of the broadcast having the content of the specific purpose called the traffic information is heard and the listening is completed. Further, the modulation method of the broadcast station thus broadcast and the information of the broadcast frequency are stored in advance in the radio broadcast receiving unit 56 or the source control unit 61.

Then, when the MPU 62 as the source type display control means detects the start of the listening operation corresponding to the rotation operation portion 11f, the source selection UI unit 11 is controlled so that the source of the state memory portion 63 is memorized when the start of the listening operation is detected. The type of the source indicated by the genre information is displayed in a different state before the detection start operation, and then, when the listening operation corresponding to the rotation operation unit 11f is detected, the memory is detected in the state memory unit when the start of the listening operation is detected. The source type indicated by the source type information of 63 is displayed in the same state as before the detection starts to listen to the operation.

Thereby, the user can confirm the source type after the listening to the broadcast (for example, the roadside broadcast) having the content of the specific purpose called traffic information in the broadcast listening.

Further, according to the second embodiment, the state memory unit 63 memorizes the source type information indicating the source type selected in the power-on state, and when the power-on state detects the start of the listening operation, the MPU 62 starts listening. When the operation is detected, the source type indicated by the source type information stored in the state storage unit 63 is displayed in a different state before the detection start operation, and then, when the start of the listening operation is detected, when the start of the listening operation is detected The source type indicated by the source type information stored in the state memory unit 63 is displayed in the same manner as before the detection start listening operation. On the other hand, in the standby state, when the operation to start listening is detected, the MPU 62 stops the display of all the source types until the detection of the listening operation is completed.

Therefore, if a broadcast having a specific purpose called traffic information (for example, a roadside broadcast) is in a power-on state before the start of listening, the source type selected in the power-on state is displayed, and before the start of listening, In the standby state, the responsibility source type is not displayed. Therefore, the user can confirm that if the standby state is before the start of listening, the user returns to the standby state after the hearing is completed, that is, the state of no sound.

Embodiment 3

The acoustic device according to the third embodiment of the present invention is a device that switches the display mode of the source selection UI unit 11 when the auto seek operation of the broadcast station is added, in addition to the configuration of the first or second embodiment. Further, the structure of the acoustic device of the third embodiment is the same as that of the first or second embodiment, but the control of the MPU 62 is changed from the first or second embodiment.

In addition, when one of the source types "FM1", "FM2", and "AM" of the radio broadcast is selected, the automatic search operation is started by operating a predetermined operation unit, and the modulation method corresponding to the source type being selected is used. The frequency is sequentially changed within a predetermined bandwidth, and the station that can be received is tested, and the station that receives the received signal above the predetermined electric field strength automatically performs the preset action. For example, as shown in FIG. 1 , in the case where six sets of P1 to P6 can be preset in one source type, six sets are preset for each of FM1, FM2, and AM. In this case, a station with a strong electric field strength can be preset in "FM1", and a station with a weak electric field strength is preset in "FM2". In addition, when automatic search is performed when "FM1" or "FM2" is selected, the found stations can be preset for both "FM1" and "FM2" of the same modulation method, or only One of the "FM1" and "FM2" will be used as a preset. In addition, it is also possible to preset the found stations for all source types "FM1", "FM2", and "AM" of the radio broadcast. Such a function makes it easy to pre-set the stations in the area when visiting other areas.

In the third embodiment, when the MPU 62 detects an operation (automatic search operation) in which an automatic search operation is performed in response to a predetermined operation unit (not shown), the MPU 62 supplies an automatic search command to the source control unit 61. The source control unit 61 controls the radio broadcast receiving unit 53 to perform an automatic search operation based on the command.

At the time of the automatic search operation, the MPU 62 changes the display mode of the source selection UI unit 11. When the automatic search operation is performed, the MPU 62 displays the source type of the object to be automatically searched for, and the source type or the selectable source type in the selection is displayed in a different state. In the third embodiment, the source type that is the target of the automatic search operation is displayed in orange during the period from the start of the automatic search to completion.

Fig. 12 is a view showing an example of display change of the source type of the source selection UI unit 11 in the third embodiment after the automatic search is started.

In Fig. 12, the state 13 is a state in which "FM2" is selected in the power-on state. In the state 13, when the automatic search operation is detected, the MPU 62 changes the display mode of the source selection UI unit 11, and switches the display state to the state 14, and the "FM1" and "FM2" which are the automatic search targets are "AM" is displayed in orange. At this time, the "CD" selectable in the state 13 is still displayed in green in the state 14.

Thereafter, when the automatic search operation is completed, the display mode of the source selection UI unit 11 returns from the state 14 to the original state 13.

On the other hand, when the "CD" selection operation is detected in the state 14, the MPU 62 selects "CD", and the source selector 54 selects the audio signal from the CD reproduction unit 51 and switches the display state to the state 15 . In the source selection UI unit 11, "CD" is indicated in red, and "FM1", "FM2", and "AM" are continued in orange. After the automatic search operation is completed, the MPU 62 switches the display state of the source selection UI unit 11 from the state 15 to the state 16, and the selected "CD" continues to be displayed in red, and the selectable "FM1", "FM2", and "" AM" is shown in green.

At this time, when the "CD" selection operation is detected in the state 14, the automatic search operation is ended and the state 14 is directly switched to the state 16.

Further, the other operation of the acoustic device according to the third embodiment is the same as that of the first embodiment or the second embodiment, and thus the description thereof will be omitted.

As described above, according to the third embodiment, the MPU 62, which is a function of the source type display control device, controls the source selection UI unit 11 as the display device when the automatic search operation of the broadcast receiving device in the plurality of audio signal output devices is performed. The source type of the automatic search target is displayed in a different state (here, orange) from the display mode of the source type in the power-on state and the display mode of the source type in the standby state.

Thereby, the user can visually recognize that the audio signal of the source type to be automatically searched is not caused by the automatic search. Therefore, the reduction is mistaken for a malfunction due to being in a silent state.

Embodiment 4

According to the fourth embodiment of the present invention, any one of the above-described first to third embodiments is applied to an AV device that operates an audio signal and a video signal. In the fourth embodiment, the AV device converts the audio signal and the video signal or the signal from the source device output only by using the video signal as the source signal, depending on the source type.

The source type in the fourth embodiment may be, for example, a source type "DVD" of a DVD reproduction unit as a media reproduction device, a source type "TV" of a television broadcast receiving unit, and a source type "PC" of a personal computer having a communication device. For example, in the source selection UI unit 11, source types such as "DVD", "TV", and "PC" are displayed. The source type "TV" can be a plurality of source types such as "UHF" and "VHF".

Further, in the fourth embodiment, the source type is different from the first to third embodiments, and the structure of the source selection device can be the same as any of the above-described first to third embodiments. Therefore, the description of the source selection device and the AV device is omitted here.

As described above, according to the fourth embodiment, the present invention is not limited to the audio device, and the same effects as those of the first to third embodiments can be obtained even in the case of the AV device that operates the video signal.

Further, the above-described embodiments are preferred embodiments of the present invention, and the present invention is not limited thereto, and various modifications and changes can be made without departing from the spirit and scope of the invention.

Further, in each of the above-described embodiments, the cancer type "FM1", "FM2", "AM", and "TV" in the radio broadcast receiving unit 53 are selectable when they are not automatically searched, but are periodically scanned. If the predetermined bandwidth of the source type of FM1", "FM2", "AM", and "TV" is not available, and one of the receivable stations is not available, it may be unselectable.

Further, in each of the above embodiments, the UI unit 31 and the sound reproduction unit 32 are provided in the same casing, and the UI unit 31 may be provided in a casing different from the sound reproduction unit 32 or in the remote controller. Further, the audio signal output device and the video device are not integrated, and the signal from the audio signal output device is input to the source selection device in the audio device 1.

Further, in each of the above embodiments, the source type selected when the power is turned on is displayed while the other source type is not displayed during standby, and instead, the power source can be switched to during standby. The source type selected in the state is displayed in the same state, and the other source types are displayed in the second state different from the first state.

Further, in each of the above embodiments, the source type selected is displayed in red, and the source type selectable in the power-on state and the source type automatically selected when the power source is switched on are displayed in green, and the traffic information is returned after returning. The source type and the source type of the object to be automatically searched are displayed in orange, and the colors may be other colors. Further, a plurality of colors are displayed without using a plurality of colors, and a plurality of duty ratios of the full-brightness and the full-duration light-emitting diodes are realized, and the combination of the load ratios and the plurality of colors may be realized.

Further, in the above embodiments, when "FM1", "FM2", and "AM" are selected, the station that was previously listened to is automatically selected, and the audio signal received from the station is outputted. . Also, for "CD" and "MD", by means of the resume function, playback can be automatically started from the place where it was previously listened.

Further, in the above-described respective embodiments, the data structure in the state storage unit 63 has a configuration in which the source type information is sequentially arranged as described above, but the data structure is not limited thereto, and other configurations may be employed. For example, the state in which each source type is in the selection state and whether it is the selectable state may be separately managed by a flag value, and the order of selection of the source types may be memorized. In this case, the value of the selection order, for example, the value of the source category being selected now is 1, the value of the source category of the previous selection is 2, and the value of the source category of the first n selections is (n+1). In this case, in the standby state, among the selectable source types, the selection order can select the latest display, and in the power-on state, the selected source type and the selectable source type are displayed according to the flag value.

Further, in each of the above embodiments, two types of "FM1" and "FM2" are provided for the source type of the FM broadcast, and three or more source types may be provided for the broadcast of the same modulation method.

[Possibility of industrial use]

For example, the present invention is applicable to a car mounted audio device.

1. . . Audio device

11a to 11e. . . Display window

12. . . Media insertion port

11f. . . Rotary operation unit (operation unit)

13. . . Exit button

14. . . Media insertion port

15. . . Exit button

17. . . Preset station selection operation unit

18. . . Volume adjustment operation unit

19. . . Display device

20. . . Audio setting button

twenty one. . . Equalizer button

twenty two. . . Color setting button

32. . . Acoustic sound reproduction department

33. . . Control department

41. . . Radio operation department

42. . . CD operation department

43. . . MD operation department

54. . . Source selector

55. . . Electronic volume meter

56. . . Expansion machine

61. . . Source control department

63. . . State memory (memory device)

Qrj, Qgj (j=1,...,5). . . Transistor

16. . . Tuning operation unit (specific purpose operation unit)

SW. . . Push switch (first operation detecting device)

31. . . User interface (part of the source selection device)

LEDri, LEDgi (i=1,...,5). . . Light-emitting diode

11. . . Source selection UI unit (display device, source type display unit, operation unit)

ENC. . . Rotary encoder (second operation detecting device, rotating operation detecting device)

51. . . CD reproduction unit (source device, audio signal output device, media reproduction device)

52. . . MD regeneration unit (source device, audio signal output device, media reproduction device)

53. . . Radio broadcast receiving unit (audio signal output device, source device, broadcast receiving device)

62. . . MPU (state transition device, source type display control device, source type selection device, determination device)

Fig. 1 is a front elevational view showing an acoustic device incorporating a source selection device according to a first embodiment of the present invention.

Fig. 2 is a block diagram showing the structure of the acoustic device of Fig. 1.

Fig. 3 is a front elevational view showing the detailed structure of the source selection UI unit of Fig. 1.

Fig. 4 is a perspective view showing a detailed structure of the source selection UI unit of Fig. 1.

Fig. 5 is a circuit diagram showing a detail of the source selection UI unit and the electrical structure of the drive circuit of Fig. 1.

Fig. 6 is a flow chart for explaining the operation of the acoustic device incorporating the source selection device in the first embodiment.

7(A) to 7(B) are schematic views showing the control form of the MPU-controlled light-emitting diode in the first embodiment.

Fig. 8 is a view showing an example of display change in the source type of the source selection UI unit in accordance with the source type conversion operation and the exit of the recording medium in the first embodiment.

9(A) to 9(B) are diagrams showing the control mode of the light-emitting diode controlled by the MPU when the traffic information is heard in the second embodiment.

Fig. 10 is a view showing an example of display change of the source type of the source selection UI unit from the start of the traffic information to the completion of the traffic information in the state where the power is turned on in the second embodiment.

In the second embodiment, in the case of listening to the traffic information in the standby mode, the display change of the source type of the source selection UI unit is completed from the start of the traffic information to the completion of the traffic information.

Fig. 12 is a view showing an example of display change of the source type of the source selection UI unit from the start to the end of the automatic search operation in the third embodiment.

1. . . Audio device

11. . . Source selection UI

16. . . Tuning operation department

17. . . Preset station selection operation unit

18. . . Volume adjustment operation unit

19. . . Display device

32. . . Acoustic sound reproduction department

33. . . Control department

41. . . Radio operation department

42. . . CD operation department

43. . . MD operation department

51. . . CD reproduction department

52. . . MD Regeneration Department

53. . . Radio reception department

54. . . Source selector

55. . . Electronic volume meter

56. . . Expansion machine

61. . . Source control department

62. . . MPU

63. . . State memory

31. . . User interface (part of the source selection device)

Claims (11)

An audio signal source selecting device includes: a display device respectively displaying a plurality of source types of one or more audio signal output devices; and a state converting device for causing the audio signal output device or the sound device having the audio signal output device The operating state of the device is switched between the standby state and the power-on state; a memory device memorizing the source type information of the source type that has been selected in the power-on state; and a source type display control device in the standby state Controlling the display device to display, in the plurality of source types, a source type indicated by the source type information memorized by the memory device and a source type of the remaining audio signal output device; and a source type selection device When one of the plurality of source types is selected, and the operation state is changed from the standby state to the power-on state, selecting a source type indicated by the source type information stored in the memory device; wherein the plurality of audio signals are One of the output devices or a plurality of media reproduction devices, wherein the recording medium is pluggable, and the audio data stored in the recording medium is read and the audio signal is reproduced from the audio data, and the memory device is used to memorize the source of the media reproduction device. Source type information of the species, and source type information indicating the source type of the previous selected source of the source type; the source type control device is In the standby state, when the source of the media playback device is displayed, if the exit of the recording medium is detected, the display device is controlled by referring to the source type information in the memory device, and the display of the source type of the media playback device is stopped. And displaying the previous selected source type of the source type of the media reproduction device. The audio signal source selecting device according to claim 1, wherein the source type selecting device stores, in a standby state, source type information of the media reproducing device that is detected by the recording medium from being memorized in the memory device. In the case where the state transition device switches the operating state from the standby state to the power-on state, the selected source type of the source type of the media reproducing device is selected based on the source type information stored in the memory device. . The audio signal source selection device according to claim 1, wherein the source type display control device specifies whether the audio signal can be output or not for the source type of the plurality of audio signal output devices in a power-on state. The display device indicates, in the source type of the outputtable audio signal, the source type selected by the source type selection means as the first state, and the remaining source type as the second mode different from the first state Or, the source type of the audio signal that cannot be output is not displayed. The audio signal source selecting device according to claim 1, further comprising an operating portion that is freely rotatable and depressible, a first operation detecting device that detects a pressing operation of the operating portion, and the detecting the operating portion a second operation detecting device of the rotating operation, wherein when the first operation is performed When the detecting device detects the pressing operation of the operation unit, the state switching device alternately switches the operation state of the source selection device or the audio device between the standby state and the power-on state; the display device is in the operation portion The periphery is arranged in the circumferential direction, and has a state of lighting and turning off the light, and the source type is indicated by lighting for each source type; the source type selecting device is detected by the second operation detecting device in a state where the power is turned on. For the rotation operation, select one of the source types that can output the audio signal. The audio signal source selecting device according to claim 1, wherein the plurality of audio signal output devices comprise a broadcast receiving device of an FM radio broadcast or an AM radio broadcast, and a compact disc or a mini disc (mini) Disc) A media reproduction device as a recording medium. The audio signal source selecting device according to claim 1, wherein the source type display control device controls the display device during an auto seek operation of the broadcast receiving device in the plurality of audio signal output devices The source type of the object to be automatically searched is displayed in different states in the display state of the source type in the power-on state and the display state of the source type in the standby state. The audio signal source selecting device according to claim 1, wherein: the one or more audio signal output devices comprise a broadcast receiving device; and the specific purpose operating portion listens to the start and end of the content having a specific purpose. When operated, When the listening start operation corresponding to the specific purpose operation unit is detected, the display device is controlled to listen to the source type indicated by the source type information memorized by the memory device at the start operation, which is different from before the listening start operation. The mode indicates that, after detecting the end of the listening operation corresponding to the specific purpose operation unit, the display device is controlled to listen to the source type indicated by the source type information memorized by the memory device at the start operation, and listen to The same pattern representation before starting the operation. The audio signal source selecting device according to claim 7, wherein the source type display control device listens to the source type information memorized by the memory device when the start operation is detected in the power-on state. The type of source indicated is expressed in a different form from that before the start of the operation, and then, when the end of the listening operation is detected, the source type indicated by the source type information memorized by the memory device at the start operation is heard. The same state representation is displayed before the start operation, and in the standby state, when the above-described listening start operation is detected, the display of all source types is stopped until the end of the listening operation is detected. The audio signal source selecting device according to claim 7, wherein the broadcast receiving device in the plurality of audio signal output devices plays content having a specific purpose, and can receive the predetermined modulation mode and the predetermined Frequency information transmission of traffic information. An audio signal source selection method includes the following steps: in a plurality of source types of one or more audio signal output devices, the source type information of the selected source type displayed in the power-on state is memorized in the source selection device. In an established memory device; Converting an operation state of the audio signal output device or the device incorporating the audio signal output device from a power-on state to a standby state; and in a standby state, among the plurality of source types, a source type stored in the memory device The source type indicated by the information is displayed on a predetermined display device; the operation state of the audio signal output device or the device incorporating the audio signal output device is switched from the standby state to the power-on state; corresponding to the standby state to the power-on state Converting, in the plurality of source types, selecting a source type represented by the source type information of the predetermined memory device; wherein one of the plurality of audio signal output devices or a plurality of the plurality of audio signal output devices is Inserting and extracting audio data stored in the recording medium and outputting an audio signal from the audio data, and outputting the source type information indicating the source type of the media playback device and indicating the source type One of the sources of the selected source category In the standby state, when the source type of the media playback device is displayed, if the exit of the recording medium is detected, the source type control device controls the display device and stops by referring to the source type information in the memory device. The display of the source type of the media playback device displays the selected source type of the source type of the media playback device. The method for selecting an audio signal source according to claim 10, wherein the one or more audio signal output devices comprise a broadcast receiving device, the method comprising the following steps: A listening start operation corresponding to a specific destination operation unit that is operated when listening to the start and end of the broadcast of the content having the specific purpose is detected; when the listening start operation corresponding to the specific purpose operation portion is detected At the same time, the source type indicated by the source type information memorized by the memory device at the start of operation is listened to, and is displayed by a predetermined display device different from the state before the start of the operation; and the listening operation corresponding to the specific target operation portion is detected. End operation; and when detecting the end operation of the operation corresponding to the specific purpose operation unit, the source type indicated by the source type information memorized by the memory device at the start operation is heard to be the same as before the start operation Displayed by a given display device.