JP2003044095A - Voice recording and reproducing device and remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make omissible the number of input terminals required for a device in a comparatively simple structure. SOLUTION: In a player mode dedicated to voice reproduction, a jack 102 is functioned as a remote control jack and in a recorder mode in which recording is enabled, the jack 102 is functioned as a microphone jack.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio recording / reproducing apparatus having an input terminal for connecting an external device such as a headphone or an external microphone, and a remote having a function of remotely operating such an audio recording / reproducing apparatus. Regarding the operation device.

[0002]

2. Description of the Related Art Conventionally, in a voice recording / reproducing apparatus for recording a voice input through a microphone on a recording medium such as a memory card and reproducing the voice recorded on such a recording medium, an external device such as headphones or an external microphone is used. A device that can be connected to a device is widely used.

In such a flow, for example, Japanese Patent Laid-Open No. 7-1
As disclosed in Japanese Patent No. 53244, a headphone and a remote control device (hereinafter, referred to as a remote control) for operating a voice recording / reproducing device are integrated,
There has also been developed a device which can easily operate the audio recording / reproducing apparatus without operating the operation button of the audio recording / reproducing apparatus main body.

[0004]

However, even in an audio recording / reproducing apparatus that uses headphones integrated with such a remote controller, the audio recording / reproducing apparatus has an input terminal for a microphone and a dedicated headphone. It is necessary to provide a dedicated input terminal for each of the input terminals and the input terminal dedicated to the remote controller, which requires a space for the input terminal, which causes a problem in downsizing the device.

The present invention has been made in view of the above circumstances, and has a relatively simple structure, and the number of input terminals required for the device can be omitted. As a result, the device can be downsized. It is an object of the present invention to provide a voice recording / reproducing device and a remote control device capable of performing the above.

[0006]

In order to achieve the above object, the audio recording / reproducing apparatus according to the present invention inputs a control signal for controlling the operation of the audio recording / reproducing apparatus from the outside. And a control means for controlling the operation of the audio recording / reproducing apparatus based on the control signal received by the receiving means.

In order to achieve the above-mentioned object, the audio recording / reproducing apparatus according to the present invention has a recorder mode which is an operation mode capable of recording and reproducing sound, and a recording which cannot record sound. In a sound recording / reproducing apparatus having a player mode which is an operation mode capable of reproducing the reproduced sound, input means for inputting an input signal from an external device, and in the recorder mode, the input means. Recording means for recording an audio signal input to the means or an audio signal obtained by a built-in microphone on a recording medium, and the audio recording based on the input signal input to the input means in the player mode. And a control means for controlling the operation of the reproducing apparatus.

Further, in order to achieve the above object, the remote control device of the present invention comprises a connecting means connected to an audio signal input section of the audio reproducing device and a control for generating an operation control signal of the audio recording / reproducing device. It is characterized by comprising signal generating means and control signal supplying means for supplying the operation control signal generated by the control signal generating means to the audio signal input section of the audio recording / reproducing apparatus through the connecting means.

That is, according to the audio recording / reproducing device and the remote control device of the present invention, an external microphone for inputting an audio signal,
Since one input terminal can also be used as a remote operation device capable of operating the audio recording / reproducing apparatus, the number of input terminals required for the apparatus can be omitted, and the number of input terminals of the apparatus itself can be reduced. Miniaturization can be expected.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 is a block diagram showing the arrangement of an audio recording / reproducing apparatus according to the first embodiment.

First, in the audio recording / reproducing apparatus, each block will be described along the flow of signals when audio is recorded. In this specification, the term "voice" is used.
Is not limited to a human voice, but is used to include all audio information including, for example, a cry of birds and animals, and music.

The audio recording / reproducing apparatus of this embodiment is internally provided with
Built-in microphone 101 for converting input voice into electric signal
And a jack 102 for inputting a signal from an external microphone or a remote controller. Jack 102
It functions as a remote controller jack during the player mode described later, and functions as a microphone jack during the recorder mode described later. It should be noted that the audio recording / reproducing apparatus of the present embodiment inputs at the time of recording by the built-in microphone 101 and the jack 1.
In each of the No. 02, the input is a monaural with one audio channel.

The input selector switch 103 basically selects the built-in microphone side 103a when the plug is not inserted in the jack 102, and is switched to the jack side 103b when the plug is inserted. It is a mechanical switch.

Therefore, when a remote control plug is inserted in the jack 102, a signal from the remote control is transmitted via the input changeover switch 103 to the A / D of the control circuit (CPU) 116 composed of a microcomputer or the like.
It is input to the input terminal. At this time, the CPU 116 changes the level of the signal input through the remote controller,
Move to each operation mode (play, fast forward, etc.). The A / D input terminal is pulled up to a predetermined voltage by a pull-up resistor 130 to detect the level of an input signal from the remote controller.

On the other hand, the built-in microphone 101 or the external microphone voice signal selected by the input changeover switch 103 is input to the preamplifier 104 and amplified by a predetermined amplification factor. The control of the amplification factor of the preamplifier 104 or the power supply is controlled by the CPU 116 which is a control circuit for controlling the overall operation of the audio recording / reproducing apparatus. Therefore, when the remote control plug is inserted in the jack 102, the power supply to the preamplifier 104 is cut off and the signal from the remote control is amplified. A method of detecting which one of the remote control plug and the external microphone plug is inserted in the jack 102 will be described later.

The audio signal amplified by the preamplifier 104 is input to the input amplifier 105a of the stereo codec 105 for converting a signal between an analog audio signal and a digital signal. The audio signal is amplified again here and then input to each of the A / D converter R105b and the A / D converter L105c that convert the analog audio signal into a digital signal. Here, the audio signal is converted into a digital audio signal and input to the digital filter 105d. In addition, stereo codec 1
05 itself supports conversion of analog signals into digital signals and conversion of digital signals into analog signals with respect to stereo signals, so the A / D converter also has 105b and 105c for the right channel and the left channel.
However, in the recorder mode, since the input from the built-in microphone 101 or the jack 102 is a monaural input, one input signal is input to each of the A / D converters 105b and 105, as described above.
The configuration is such that both are input to c.

The digital filter 105d performs a process of removing unnecessary quantization noise called aliasing noise generated when the above audio signal is converted into a digital signal from the digital audio signal. And the digital audio signal from which the quantization noise is removed is
It is transferred to the digital signal processing unit (DSP) 114.

Under the control of the CPU 116, the DSP 114 encodes (compresses and converts) the input digital audio signal frame by frame in accordance with a predetermined format to generate encoded data. This audio recording / playback device
tal Speech Standard method (hereinafter referred to as DSS method,
The encoded data file encoded by the DSS method is converted into DS
It is referred to as an S file. ) Is used.

The encoded data generated in this way is stored in the memory card 117 as an encoded data recording means.
Transferred to. The memory card 117 is composed of a semiconductor memory such as a flash memory having a card shape that can be attached to and detached from the audio recording / reproducing apparatus. Specifically, there is Smart Media (registered trademark) or the like, and this voice recording / reproducing apparatus uses this. The encoded data is
CPU 11 via bidirectional bus transceiver IC 115
Under the control of No. 6, the data is sequentially written in predetermined addresses in the memory card 117. The encoded data written in the memory card 117 is handled as a file unit. In addition, since the recording of the sound by this sound recording / reproducing apparatus is performed in monaural, the right A
Only the encoded data of the digital audio signal output from the / D converter R105b side is recorded in the memory card 117.

Next, the function of each block will be described along the signal flow when reproducing the encoded data recorded in the memory card 117.

First, from the memory card 117, the DSP 1
The encoded data is sequentially transferred to 14. The encoded data transferred to the DSP 114 is under the control of the CPU 116.
It is decoded (expansion conversion) into a digital audio signal in a predetermined frame unit. As will be described later, the memory card 117
In addition, encoded data other than DSS files can be recorded. Therefore, in the DSP114, the memory card 1
It determines which coding method is used for the coded data sent from 17, and decodes the coded data according to the coding method. The audio recording / reproducing apparatus in this embodiment is a Windows Media (registered trademark) system of Microsoft Corporation (registered trademark) (hereinafter, WMA).
The coded data file encoded by the WMA method is referred to as a WMA file. ), Motion Picture E
xperts Groupe-1 Audio Layer3 method (hereinafter referred to as MP3 method, an encoded data file encoded by the MP3 method is referred to as an MP3 file) and the DSS method 3
It shall be possible to perform decoding of coded data of different types. The decoded digital audio signal is transferred to the stereo codec 105.

The transferred digital audio signal is subjected to removal of unnecessary quantization noise in the digital filter 105d in the stereo codec 105. After that, the D / A converters R105e and D
/ A converter L105f performs conversion from a digital audio signal to an analog audio signal, and outputs an output amplifier R
The signal is amplified by 105g and the output amplifier L105h, and output from the stereo codec 105. In addition,
When the original encoded data is monaural data, the same signal is input to both the left and right channels, the above-mentioned processing is performed, and then the data is output.

The output destinations of the left and right channel audio signals output from the stereo codec 105 are switched by the output selector switches 106 and 107 which are interlocked with each other. Two output destinations of the audio signal are a headphone jack R111 and a headphone jack L112 for connecting an external headphone or the like to reproduce the audio signal by using an external reproducing device, and a speaker 113 provided in the audio recording / reproducing apparatus. It is prepared.

When the output selector switches 106 and 107 are switched to the 106a and 107a sides, respectively, the headphone jack R111 and the headphone jack L112 are selected as the output destinations. Then, the headphone amplifier R108 and the headphone amplifier L109 amplify the audio signal at an amplification rate according to the output from both headphone jacks, and output the left and right channels.

When the output selector switches 106 and 107 are switched to the 106b and 107b sides, respectively, the speaker 113 is selected as the output destination. In addition,
Since only one speaker 113 is built in the present audio recording / reproducing apparatus, the audio signal is synthesized from the left and right channel signals, and then the speaker amplifier 110 outputs the speaker 11 to the speaker 11.
It is amplified by a proper amplification factor to 3 and output from the speaker 113.

Further, the CPU 116 is connected with some circuits in addition to the above-mentioned ones. Display 11
Reference numeral 9 is composed of a two-color LED and a liquid crystal display (LCD) having a backlight, and displays the operating state of the audio recording / reproducing apparatus. In addition, the display drive circuit 1
Reference numeral 18 drives the display unit 119 to display under the control of the CPU 116.

Although the details of the operation switch group 120 will be described later, they are operation switches provided on the exterior of the audio recording / reproducing apparatus for controlling various functions of the audio recording / reproducing apparatus. Button, play button, rewind button, fast forward button,
It is composed of an erase button, an index button, a menu button, a folder button, a main switch, an operation mode switch, a microphone sensitivity switch, a hold switch and the like.

The power supply circuit 121 is a circuit for supplying electric power for driving the audio recording / reproducing apparatus, and controls the power supply such as a battery, a battery check circuit, a power-on reset circuit, a step-up circuit, a step-down circuit and an external power supply circuit. Including the circuit.

The built-in memory 122 is composed of an EEPROM, which is a rewritable nonvolatile memory built in the audio recording / reproducing apparatus, and is used to select and set a user ID and a recording mode (standard mode / long-time mode). BEEP
Various settings, parameters, etc., which are desired to be recorded even when power is not supplied to the CPU 116, such as sound (ON / OFF) selection settings and data reproduction positions, are recorded.

The audio recording / reproducing apparatus can be connected to an external device such as a personal computer (PC).
The audio recording / reproducing apparatus is connected to an external apparatus and performs bidirectional communication to transfer, for example, an encoded data file recorded in a hard disk of a PC to the memory card 117 or vice versa. The coded data file recorded in 117 is transferred to a recording medium on the PC side, or the audio signal input from the built-in microphone 101 is converted into a digital audio signal by the stereo codec 105 and encoded by the DSP 114. Such as recording the encoded data directly on the recording medium on the PC side,
In addition to this, various processes can be performed.
In order to communicate with an external device such as a PC, the audio recording / reproducing device according to the present embodiment has a Universal Serial Bus (U
It is configured to connect to an external device via an interface called SB). USB connection terminal 124
Is a connection terminal for connecting to a USB cable,
It is controlled by the USB driver 123 and is connected to the CPU 116 via an internal bus (not shown).

The bidirectional bus transceiver IC 115 is provided on the bus line in order to disconnect the connection between the CPU 116 and the USB connection terminal 124 from the connection terminal on the audio recording / reproducing device side (not shown) of the memory card 117. It is a thing. This is the USB connection terminal 124
If the memory card 117 is inserted while the cable is connected and the CPU 116 is communicating with an external device, an electrical short circuit will occur between the bus lines, causing the memory card 117 and the CPU 116 to operate. This is to prevent damage or the like. Therefore,
The memory card 117 is not loaded and the CPU 116
Is communicating with an external device via the USB connection terminal 124, the bidirectional bus transceiver IC 115 is connected to the connection terminal of the memory card 117 on the audio recording / reproducing device side.
It is configured to cut off the connection with the CPU 116.

The operation mode of the audio recording / reproducing apparatus will be described below. This audio recording / reproducing apparatus has two operation modes. One is built-in microphone 101 and jack 1.
A first mode (hereinafter referred to as a recorder mode) capable of recording the voice input from the No. 02 and reproducing the recorded voice, and the other is a recording mode. Instead, it is the second mode (hereinafter referred to as the player mode) specialized for reproducing the encoded data file recorded on the recording medium. The encoding system in the recorder mode of the audio recording / reproducing apparatus according to the present embodiment is mainly intended for use in message memos, dictations, conference recordings, etc., and uses a DSS system suitable for long-term recording with high compression. There is. On the other hand, the encoding method in the player mode is presumed to listen to music mainly, and the WMA method and the MP method capable of reproducing with high sound quality.
Three types of encoding are used.

Next, the external appearance of the audio recording / reproducing apparatus will be described with reference to FIGS. FIG. 2 is a diagram of the external appearance of the audio recording / reproducing apparatus according to the present embodiment as seen obliquely from the front, and FIG. 3 is a diagram as viewed from the diagonal rear.

On the front of the audio recording / reproducing apparatus main body 201,
A display window 202 of the LCD of the display unit 119 is arranged. The display window 202 is composed of an LCD display device and can perform various displays such as a battery level, a recording mode, a file number, a user ID, various time displays, and an operation status display. Further, the backlight is lit for several seconds when each operation button is operated.

Next, the operation switch group 120 described above will be described.

The record button 203 is a button for instructing the start of voice recording. The recording button 203 can be operated only in the recorder mode. When operated in the player mode, a warning sound is emitted and the recording start instruction is ignored.

The stop button 204 is a button for instructing to stop those operations when the audio recording / reproducing apparatus is in operation such as recording and reproducing.

The playback button 205 is a button for instructing to start playback of the encoded data file recorded in the memory card 117.

The fast-reverse button 206 performs fast-reverse of the encoded data file being reproduced, decrements the file number when selecting the encoded data file to be reproduced, and decrements the parameter when setting the menu. It is a button for doing.

The fast-forward button 207 performs fast-forward reproduction of the encoded data file being reproduced, increments the file number when selecting the encoded data file to be reproduced, and increments the parameter when setting the menu. It is a button for doing. The fast-return button 206 and the fast-forward button 207 are integrally configured, and are so-called seesaw switches.

The delete button 208 is a button for deleting the coded data file selected by using the fast-return button 206 or the fast-forward button 207 from the memory card 117.
Specifically, when the coded data file to be deleted is selected and the delete button 208 is pressed once, the coded data file to be deleted is displayed in blinking on the display window 202. The operation of pressing the delete button 208 again is performed. Thereby, the desired encoded data file can be erased from the memory card 117.

The index button 209 is a button whose function is different between the recorder mode and the player mode.
In the recorder mode, the index mark is added to the encoded data file being recorded. The maximum number of index marks that can be recorded is 16 per file. In the case of the player mode, several kinds of frequency characteristics suitable for the music to be reproduced (5 kinds of normal, pops, jazz, classical music, and user-defined in this voice recording / reproducing apparatus) are prepared in advance, and a desired one is selected from them. This button is for selecting the frequency characteristic of and changing the reproduced sound.

The index mark is a mark given to a typist when he or she wants to give an instruction to the typist in dictation recording or the like. It's designed to be able to record.

The menu button 210 is for setting the recording mode,
Buttons for performing various settings related to the audio recording / reproducing apparatus such as setting of a clock and setting of a user ID. Further, in the player mode, it is possible to switch between a surround effect and a special effect such as bass amplification.

The folder button 211 has a different function in the recorder mode and the player mode. In the recorder mode, a plurality of folders are prepared in the memory card 117 for storing the encoded data files, but these folders function as buttons for switching between them. In the player mode, it functions as a button for setting the reproduction mode. In the case of this audio recording / reproducing apparatus, all coded files handled in the player mode are sequentially played only once (normal playback mode), only one file is repeatedly played (one-track repeat playback mode), and codes handled in the player mode. Repeated playback of all encoded files in sequence (all-track repeat playback mode), random playback of coded files handled in player mode (random repeat playback mode), and coded files handled in player mode once in random order You can select from playback (random playback mode).

The various operation buttons are push button switches, and the switch state is assumed to be turned on by the pressing operation.

The operation mode switch 212 is a switch for switching the operation mode of the audio recording / reproducing apparatus between the recorder mode and the player mode.

The microphone sensitivity switch 213 is a switch for setting the input level of the built-in microphone 101, and can be switched between high sensitivity (conference mode) and low sensitivity (dictation mode).

The hold switch 214 sets and cancels a so-called hold function that invalidates the operation input of the push button switch and shifts the operation mode of the audio recording / reproducing apparatus to the power saving mode when the operation is stopped. It is a switch to do.

The main switch 215 is a switch for turning ON / OFF the operation of the audio recording / reproducing apparatus. Also,
The main switch 215 mechanically engages with the eject knob 222 in the ON state, and the memory card 11
It is configured so that 7 cannot be taken out. The above corresponds to the operation switch group 120.

The headphone jack 216 is for outputting an audio signal to headphones, an external speaker or an external audio processing device, and the headphone jack R1 is used.
11 and a headphone jack L112 are integrally configured. Also, the reproduced sound can be output from the speaker 113. The reproduction output switching mechanism outputs a reproduction signal from the headphone jack 216 if a plug is inserted in the headphone jack 216, and outputs a reproduction sound from the speaker 113 if the plug is not inserted in the headphone jack 216. Is configured to. In addition, these headphone jack 2
From 16 and the speaker 113, a warning signal or a warning sound can also be generated.

The jack 102 is a jack having two functions, that is, a microphone jack and a remote control jack as described above. The built-in microphone 101 is arranged next to the jack 102.

The indicator 218 mainly displays the state of reproduction or recording operation, and uses a two-color LED which is a part of the display section 119. It is configured so that it lights up in green during reproduction and lights up in red during recording. Further, the indicator 218 is also used for warning display, and when a warning is given to the user for some reason, a blinking red display is provided.

The volume knob 219 is for adjusting the output level from the headphone jack 216 and the speaker 113.

The recording medium insertion port 220 is used for the memory card 1
It is an opening for inserting 17.

The power jack 221 is for connecting to an external power source and receiving power from the outside. The eject knob 222 is for taking out the memory card 117 inserted in the recording medium insertion port 220. The battery lid 223 is a lid that covers an electric field chamber (not shown).

The USB connection terminal cover 224 is connected to an external device such as a PC to communicate with the USB terminal 124.
Is a lid that covers.

Next, how data is recorded in the memory card 117 used in the audio recording / reproducing apparatus will be described with reference to FIG.

An encoded data file 41, a music order data file 42, DSS file folders 43, 44 and 45, and a system folder 54 are recorded in the root directory of the memory card 117.

The encoded data file 41 has an extension "mp3" or "wma", and these are M
It indicates that the file is a music data file encoded by the P3 system or the WMA system. These are encoded data files that can be reproduced in the player mode.

The song order data file 42 is a file that has, as table data, the playback order of the encoded data file that can be played back in the player mode.
If you want to change the playback order of the encoded data file in the player mode, use the song order data file 42 as a CP.
Rewrite under the control of U116.

DSS file folders 43, 44, 45
Is a folder for storing the DSS file. In the recorder mode, three folders A, B and C are provided to organize the DSS files, and D folder
The SS file folders 43, 44 and 45 correspond to these folders A, B and C, respectively. DSS file folder 4
DSS files 46 and 4 are assigned to 3, 4, and 45, respectively.
7 and 48 are stored, and these can be reproduced in the recorder mode.

At the time of recording, a DSS file is created in any of these DSS file folders 43, 44 and 45. The reproduction order of the DSS files 46, 47, 48 is recorded in the reproduction order data files 51, 52, 53 as table data for each folder. In consideration of the display capability of the display window 202, user friendliness, etc., in the audio recording / reproducing apparatus according to the present embodiment, the number of recordable files per folder in the recorder mode is 199, which is 5 in total.
There are 97 cases.

In the DSS file folder 43, a folder name data file 49 and a recovery data file 50 are recorded in addition to the above-mentioned files. In this audio recording / reproducing apparatus, the DSS file folder A43,
B44 and C45 can be changed to display names in the display window 202. The folder name data file 49 is
Its display name and DSS folder files 43, 44, 45
Data for associating with is recorded. The recovery data file 50 is a file in which data for recovering data is recorded when the data in the DSS file folders 43, 44, and 45 is destroyed for some reason.

The system folder 54 is a folder for storing codec files 55 and 56 of encoded data files reproduced in the player mode. The first 3 characters of the file names of the codec files 55 and 56 are
The extension of the corresponding encoded data file is used.
The extension of these codec files is "img".
Is used. The codec file for recording and reproducing in the recorder mode is stored in the ROM (not shown) in the CPU 116.

FIG. 5A shows the above headphone jack 2
It is a figure which shows the electric constitution of the remote control (remote operation device) connected to the headphone inserted in 16 and the said jack 102.

That is, the line R connected to the + terminal of the right speaker (R) of the headphones and the + of the left speaker (L).
The line L connected to the terminal and the line COM connected to the-terminals of both speakers are connected to the corresponding conductive members in the headphone plug 501 inserted into the headphone jack 216. Therefore, when the headphone plug 501 is inserted into the headphone jack 216, the conductive member connected to the line R comes into contact with the headphone jack R111, and the speaker (R) and the headphone amplifier R108 are connected. Similarly,
The conductive member connected to the line L is brought into contact with the headphone jack L112 to connect the speaker (L) and the headphone amplifier L109.

The remote control plug 502 inserted into the jack 102 is provided with conductive members that come into contact with the jack 102 and a ground line (not shown), and the remote control resistor _RA ,
R _B , R _C , R _D and R are connected in series. Thus, when the remote control plug 502 is inserted into the jack 102, the voltage Vr appears in the input voltage VAD at the A / D input terminal of the CPU 116. Therefore, depending on whether or not this voltage Vr is detected, the CPU 116 determines whether or not the remote controller is inserted in the jack 102.
It can be determined whether it is an external microphone. The voltage Vr is the pull-up voltage at the A / D input terminal,
Resistance of 0 and a remote control resistor _{R A, R B, R C} , the divided value by the sum of the resistance values of _{R D} and R.

An operation switch is provided between each remote control resistor and the ground line. By turning on the operation switch, the input voltage VAD at the A / D input terminal of the CPU 116 is V1. , V2, V3
Alternatively, one of the voltages V4 appears. Therefore, the CPU 116 can determine which switch is turned on by detecting the input voltage VAD. Therefore, each operation switch is replaced by a playback switch (PLA
Ysw) 503, fast forward switch (FFsw) 504, fast reverse switch (REWsw) 505, and stop switch (S)
Each operation switch is formed on the remote controller main body 500 so as to be used as the TOPsw) 506.

Here, it goes without saying that the headphone and the remote controller may be separately configured, but in the present embodiment, as shown in FIG. 5B, headphones with a remote controller are integrated. Shall be configured as. However, when the headphone plug 501 and the remote control plug 502 of the headphone plug unit 507 with a remote controller are inserted into the jacks 216 and 102 of the audio recording / reproducing apparatus main body 201 in the case of such an integral structure,
It is preferable to provide a mechanism capable of preventing reverse insertion of the plug. 6 to 9 are examples thereof.

That is, in the example of FIG. 6, a projection 508 is provided on the headphone plug unit 507 with a remote controller, and a hole 225 for inserting the projection 508 is provided at a position corresponding to the projection 508 of the main body 201 of the audio recording / reproducing apparatus. It is provided. With such a configuration, the projection 508 of the remote control headphone plug unit 507 is inserted in the direction of entering the hole 225 of the audio recording / reproducing apparatus, so that the headphone plug 501 and the remote control plug 502 of the remote control headphone plug unit 507 are connected. Are properly inserted into the corresponding jacks 216 and 102. On the other hand, if the protrusion 508 is not inserted into the hole 225 when it is inserted in the opposite direction, the protrusion 508 hits the exterior of the audio recording / reproducing apparatus main body 201 and the plug 50
Prevent full insertion of 1,502. From this, it can be seen that the user was trying to insert the plugs 501 and 502 in reverse.

In addition to this, by providing a step portion 509 in the headphone plug unit with remote controller 507 as in the example of FIG. 7, when the headphone plug unit with remote controller 507 is inserted in the correct direction, the step portion 509 is When the headphone plug unit 507 with a remote controller is inserted reversely, the step portion 509 hits the main body 201 (for example, the recording medium insertion port 220) of the audio recording / reproducing apparatus, and the plug of the plug is engaged. The structure may be such that insertion cannot be performed.

Further, as in the example of FIG. 8, the headphone jack 216 and the jack 102 of the main body 201 of the audio recording / reproducing apparatus are color-coded (green and red in this example), and the headphone plug 501 of the headphone plug unit with a remote controller. And a remote control plug 502 corresponding thereto to color the headphone plug 501 green and the remote control plug 502 red to prevent reverse insertion of the plug, and as shown in the example of FIG. Headphones plug unit 5 with main body 201 side and remote control
Marks 226 and 510 for preventing reverse insertion on the 07 side, respectively
In order to prevent the reverse insertion of the plug, it is conceivable that the plug is inserted and the plugs are inserted by aligning these marks.

Next, using the flowchart of FIG.
The main operation of the audio recording / reproducing apparatus according to the present embodiment will be described.

First, the main switch 215 is operated,
When the audio recording / reproducing apparatus is activated, the RAM (not shown) in the CPU 116 is initialized (step S1).
1). Next, the CPU 116 determines the current state of the operation mode switch 212 (step S12), and starts the operation in the player mode or the recorder mode according to the result.

First, the operation of the audio recording / reproducing apparatus in the player mode will be described. When the user operates the various operation buttons in the player mode, the operation of the various operation buttons described above is started.

First, the CPU 116 determines whether or not the recording button 203 of the main body 201 is turned on (step S13).
A), when it is determined that the record button 203 is turned on,
Since the audio recording / reproducing apparatus cannot perform the recording operation in the player mode, it sounds a warning sound and does not perform the recording operation (step S14A).

Next, the CPU 116 causes the reproduction button 205 of the main body 201 to be turned on, or the remote control PRAWsw 503.
It is determined whether is turned on (step S15A). The operation buttons of the remote controller are discriminated by the magnitude of the A / D input voltage VAD as described above. Whether the PLAYsw 503 is ON indicates whether the A / D input voltage VAD voltage is V1. Determine by whether or not. When a reproduction instruction is given by turning on the reproduction button 205 or the PLAYsw 503, the CPU 116 performs the above-described reproduction operation (step S16A).

Next, the CPU 116 turns on the fast-forward button 207 of the main body 201 or turns off the FFsw 504 of the remote controller.
It is determined whether or not N has been performed (step S17A). In this case, ON of the FFsw 504 of the remote controller is determined by whether the A / D input voltage VAD is the voltage V2. When the fast-forward button 207 or the fast-forward instruction is issued by the FF sw 504, the CPU 116 performs the fast-forward operation or the increment operation described above (step S18A).

Next, the CPU 116 determines whether the fast-return button 206 of the main body 201 is turned on or the remote controller REWsw 505 is turned on (step S19A). ON of REWsw505 of remote control is A / D input voltage VAD
Is determined to be voltage V3. Rewind button 206
Alternatively, when the rewind instruction is issued by the REWsw 505, the CPU 116 performs the above-described rewind operation or decrement operation (step S20A).

Further, the CPU 116 determines that the stop button 204 of the main body 201 is ON or the remote control STOPsw 506.
It is determined whether is turned on (step S21A). ON of STOPsw506 of remote control is A / D input voltage V
It is determined by whether or not AD is the voltage V4. Stop button 2
When 04 or STOPsw506 is turned on,
The CPU 116 performs the above-mentioned stop operation (step S22).
A).

Further, the CPU 116 determines whether or not the menu button 210 of the main body 201 is turned on (step S2).
3A). When the menu button 210 is turned on, CP
U116 displays a menu on the display window 202, and can switch special effects such as surround effect and low-pitched sound amplification by operating each operation button, and can set various settings of the audio recording / reproducing apparatus such as clock setting. The mode is shifted to (step S24A).

Next, the CPU 116 determines whether the erase button 208 of the main body 201 has been turned on (step S25).
A). When the delete button 208 is turned on, the mode shifts to a mode in which the encoded data file can be deleted (step S26A).

Next, the operation of the audio recording / reproducing apparatus in the recorder mode will be described. When various operation buttons are operated by the user in the recorder mode, the operation of the various operation buttons described above is started. In the present embodiment,
In this recorder mode, the operation by the remote control is not accepted.

First, the CPU 116 determines whether or not the recording button 203 of the main body 201 is turned on (step S13).
B). When it is determined that the recording button 203 is turned on, recording processing is performed (step S14B). Here, as described above, when some plug is inserted in the jack 102, the changeover switch 103 is switched so that the jack side 103b is prioritized instead of the built-in microphone side 103a. . That is, when the plug is inserted in the jack 102, recording with the built-in microphone 101 cannot be performed, and recording with the external microphone is only possible. However, the case where an external microphone plug is inserted into the jack 102 and the remote control plug 5
02 may be inserted. Therefore, in the present embodiment, as the recording process, an operation as shown in FIG. 11 is executed.

That is, first, the CPU 116 determines whether or not the A / D input voltage VAD is the above Vr in order to determine whether the connected one is an external microphone or a remote controller (step S111A). ). Here, when the remote controller is not connected, that is, when the external microphone is connected, or when neither is connected, the A / D input voltage VAD does not become Vr. Therefore, when the A / D input voltage VAD is not Vr,
The CPU 116 starts the above-described recording operation using the external microphone or the built-in microphone 101 by switching the changeover switch 103 (step S112A). On the other hand, when the A / D input voltage VAD is Vr, it is determined that the remote controller is connected, a warning sound is emitted (step S113A), and control is performed not to perform the recording operation. . Therefore, the user knows from this warning that the remote control is connected, and the remote control plug 5
02 can be removed from the jack 102 to enable recording with the built-in microphone 101, or an external microphone can be connected to enable recording with the external microphone.

Next, the CPU 116 determines whether or not the reproduction button 205 of the main body 201 is turned on (step S15).
B). When the play button 205 is turned on, the CPU 11
6 performs the above-mentioned reproduction operation (step S16B).

Next, the CPU 116 determines whether or not the fast-forward button 207 of the main body 201 is turned on (step S17).
B). When the fast-forward button 207 is turned on, the CPU 11
6 performs the above-described fast-forward operation or increment operation (step S18B).

Next, the CPU 116 sets the fast return button 206 to the O
It is determined whether N has been done (step S19B). Rewind button 2
When 06 is turned on, the CPU 116 performs the above-described fast return operation or decrement operation (step S20).
B).

Further, the CPU 116 determines whether or not the stop button 204 of the main body 201 is turned on (step S21).
B). When the stop button 204 is turned on, the CPU 11
6 performs the above-mentioned stop operation (step S22B).

Further, the CPU 116 determines whether or not the menu button 210 of the main body 201 is turned on (step S2).
3B). When the menu button 210 is turned on, CP
U116 displays a menu on the display window 202, and shifts to a mode in which various settings of the audio recording / reproducing apparatus such as clock settings can be performed by operating each operation button (step S24B).

Next, the CPU 116 determines whether or not the erase button 208 of the main body 201 has been turned on (step S25).
B). When the delete button 208 is turned on, the mode shifts to a mode in which the encoded data file can be deleted (step S26B).

After finishing the above operations, the audio recording / reproducing apparatus returns to step S12 and forms the main loop.

[Second Embodiment] A second embodiment of the present invention will be described with reference to FIG. The present embodiment is a modification of the first embodiment, and in the recorder mode, a recording operation can be performed even if the remote controller is connected to the audio recording / reproducing apparatus.

That is, as shown in FIG. 12A, the audio recording / reproducing apparatus according to the present embodiment has the preamplifier 1 through the changeover switch 103 in the circuit of FIG.
04, the built-in microphone 101 configured to be connected to 04 is connected to the preamplifier 104 via the switch a (SWa) 125, and the jack 102 is connected to the A / D input terminal of the CPU 116. Further, the built-in microphone 101 and the jack 102 are connected to the input selector switch 1
03 and a switch b (SWb) 126 to connect to the preamplifier 104.

FIG. 12B is a flow chart showing the details of the recording process of step S14B in the case of such a configuration.

That is, the CPU 116 determines whether or not the remote controller is connected by determining whether or not the input voltage VAD at the A / D input terminal is a predetermined Vr (step S111B).

If it is determined that the remote controller is not connected (VAD is not Vr), SWa125
Is turned off and SWb126 is turned on (step S11
2B), recording is started (step S114B). As described above, the input selector switch 103 is the jack 10
When some plug is inserted into 2, the jack side 103b is mechanically switched.
Since it is determined in 11B that the remote control is not connected, if it is connected, it is an external microphone. Therefore, the signal from the external microphone is supplied to the preamplifier 104 via the input changeover switch 103 and the SWb 126 to be recorded. Alternatively, if nothing is inserted in the jack 102,
Since the changeover switch 103 selects the built-in microphone side 103a, even if the SWa 125 is turned off, the signal from the built-in microphone 101 is supplied to the preamplifier 104 via the input changeover switch 103 and SWb 126. , Will be recorded.

On the other hand, when it is determined in step S111B that the remote controller is connected (VAD is Vr), the CPU 116 turns on SWa125 and turns on SWa125.
b126 is turned off (step S113B), and recording is started (step S114B). That is, in this case, by the control of the SWa125 and SWb126,
A signal line from the built-in microphone 101 to the preamplifier 104 via the SWa 125 is formed, and the input changeover switch 1
The signal line from 03 to the preamplifier 104 via the SWb 126 is disconnected. Therefore, the signal from the remote controller is given to the SWb 126 via the input selector switch 103, but since the SWb 126 is turned off,
The signal is not supplied to the preamplifier 104. Only the signal from the built-in microphone 101 via the SWa 125 is supplied to the preamplifier 104, and this is recorded.

Therefore, with such a structure, when the remote controller is connected, the built-in microphone 10
Since it is possible to record by using 1, it is possible to accept the operation by the remote controller even in the recorder mode.

[Third Embodiment] The third embodiment is an example in which the built-in microphone 101 can record sound even when the remote control is connected, as in the second embodiment.

That is, in this embodiment, a mechanical switch (RMsw) 127 is provided inside the hole 225 of the main body 201 of the audio recording / reproducing apparatus described with reference to FIG. That is, in the above-described example of FIG. 6, when the headphone plug unit 507 with a remote controller is connected to the audio recording / reproducing apparatus, the protrusion 508 is fitted into the hole 225, and at this time, the protrusion 225 is inserted. The RMsw 127 is switched by the pressing force of.

A circuit diagram of a portion corresponding to this is shown in FIG. That is, the input selector switch 103 is the R switch as described above.
The Msw 127 is connected to the preamplifier 104 via the Normal side, and the input selector switch 10 is also provided.
The built-in microphone 101 configured to be connected to the preamplifier 104 via the RMsw12
7 is also connected to the preamplifier 104 via the RM side. Here, the RMsw 127 is
Normally, the Normal side is selected, and when the protrusion 508 is fitted into the hole 225 as described above, it is switched to the RM side.

Therefore, when nothing is inserted in the jack 102, the signal from the built-in microphone 101 causes the input selector switch 10 that selects the built-in microphone side 103a.
3 and the RMsw 127 which selects the Normal side, and is supplied to the preamplifier 104 to be recorded.

When the headphone plug with remote control is connected, that is, when the remote control plug 502 of the headphone plug unit 507 with remote control as shown in FIG. 6 is inserted into the jack 102 and the headphone jack 216, the RMsw 127 is set to Normal. Side to RM side. Therefore, the signal from the built-in microphone 101 is RM
Preamplifier 1 via RMsw127 selecting the side
It will be supplied to 04 and recorded. At this time, the signal from the remote controller is A / D of the CPU 116 by the input changeover switch 103 selecting the jack side 103b.
Although it is supplied to the input end, it is not supplied to the preamplifier 104 because the RMsw 127 is switched to the RM side.

[Fourth Embodiment] The fourth embodiment is also an example in which recording can be performed by the built-in microphone 101 even when the remote control is connected, as in the second and third embodiments. The audio recording / reproducing apparatus according to the present embodiment has a main body 2
01 is provided with a switch (not shown) which is manually operated by the user according to the remote control connection state.

FIG. 14 is a diagram showing a circuit configuration of a portion corresponding to it. That is, the RMswa128 provided as a switch manually operated by the user is the Norma
It has two positions, l side and RM side.
On the side, the input selector switch 103 is connected to the preamplifier 104, and on the RM side, the built-in microphone 101 and the preamplifier 104 are connected. Also, inside the main body 201, RMs that switch in conjunction with this RMswa128
wb129 is provided. That is, this RMswb1
29 also has two positions, a Normal side and an RM side. On the RM side, the jack 102 is connected to the A / D input end of the CPU 116, and on the Normal side, the C side is connected.
Nothing is connected to the A / D input terminal of the PU 116.

According to such a configuration, the jack 102
When nothing is connected to the user, the user selects RMswa1
Since 28 is set to the Normal side, the built-in microphone 10
The signal from 1 is supplied to the preamplifier 104 via the input changeover switch 103 and the RMswa 128 which are set on the built-in microphone side 103a because nothing is inserted into the jack 102, and is recorded. At this time,
Since the RMswb 129 is linked to the RMswa 128, it is set on the Normal side.
Nothing is supplied to the 16 A / D inputs. Also, when the plug of the external microphone is inserted in the jack 102, the user sets the RMswa 128 to the Normal side. Therefore, in this case, since the input selector switch 103 is switched to the jack side 103b by inserting the plug into the jack 102, the signal from the built-in microphone 101 is supplied to the preamplifier 104 by both the input selector switch 103 and the RMswa 128. Separated from. Then, from the external microphone, jack 102
The signal input via the input switch 10
3 and RMswa128, and is supplied to the preamplifier 104 and recorded. At this time, the RMswb 129 is set to the Normal side because it interlocks with the RMswa 128, so that nothing is supplied to the A / D input terminal of the CPU 116.

Then, when the remote control plug 502 is inserted into the jack 102, the user is required to use the RMswa12
Switch 8 to the RM side and operate. As a result, the signal from the built-in microphone 101 is supplied to the preamplifier 104 through the RMswa 128, although the line through the input changeover switch 103 is cut, so that recording can be performed. And the signal from the remote control is RMs
Since the wb 129 is switched to the RM side in conjunction with the RMswa 128, it is supplied to the A / D input terminal of the CPU 116. Further, the remote control signal via the input changeover switch 103 is blocked by the RMswa 128, so that it is not transmitted to the preamplifier 104.

Since the RMswa 128 is a manually operated switch, in the recorder mode, even if an external microphone is connected, the user mistakenly selects the RMswa 128.
There is a case where the wa128 is switched to the RM side. If the mode is switched to the RM side in this way, the built-in microphone 101 will record sound even though an external microphone is connected. At this time, the CPU 116 uses the RMsw.
Since it is possible to determine whether the remote control or the external microphone is connected as described above via b129, if the connected one is the remote control or the external microphone, sound a warning sound during recording. Can alert the user.

In the present embodiment, RMswa12
Although 8 has been described as a switch manually operated by the user,
RMswb129 is such a manually operated switch,
The RMswa 128 may be configured as a switch interlocking with the RMswb 129. Further, the main body 201 is provided with another operation member, and these RMs are linked with the operation.
The swa128 and RMswb129 may be switched.

Although the present invention has been described based on the embodiments above, the present invention is not limited to the above-mentioned embodiments, and various modifications and applications are possible within the scope of the gist of the present invention. Of course.

Here, the summary of the present invention includes the following in addition to those described in the claims.

(1) The audio recording / reproducing apparatus according to claim 2, wherein the recording means records the input signal supplied in an analog format on a recording medium after encoding the input signal.

(2) Recorder mode, which is an operation mode capable of recording and reproducing sound, and player mode, which is an operation mode in which sound cannot be recorded, but recorded sound can be reproduced. And a remote control signal reception for receiving a remote control signal for controlling the operation of the audio recording / reproducing apparatus through a microphone input terminal for inputting an audio signal in the player mode. An audio recording / reproducing apparatus comprising means.

(3) First connecting means connected to the audio signal output section of the audio recording / reproducing apparatus, second connecting means connected to the audio signal input section of the audio recording / reproducing apparatus, and the first Audio output means for converting an audio signal supplied from the audio recording / reproducing apparatus into audio and outputting through the connecting means, control signal generating means for generating an operation control signal of the audio recording / reproducing apparatus, and the control And a control signal supply means for supplying an operation control signal generated by a signal generation means to the audio recording / reproducing apparatus via the second connecting means.

(4) The first connecting means and the second
The remote control device according to claim (3), characterized in that the connection means of (1) is integrally configured.

(5) The integrated portion has a display showing the correct connection direction together with the display drawn near the audio output section and the audio input section of the audio recording / reproducing apparatus. (4) The remote control device according to (4).

(6) The first plug connected to the audio signal output jack of the audio recording / reproducing apparatus, the second plug connected to the audio signal input jack of the audio recording / reproducing apparatus, and the audio recording / reproducing apparatus. Control signal generating means for generating an operation control signal; control signal supplying means for supplying the control signal to the audio recording / reproducing apparatus via the second plug; and the first plug of the audio recording / reproducing apparatus. When trying to insert into the above audio signal input jack and /
Or, when the second plug is about to be inserted into the audio signal output jack of the audio recording / reproducing apparatus,
A reverse insertion preventing mechanism for preventing the first plug and / or the second plug from being completely inserted into the audio signal input jack and / or the audio signal output jack. Operating device.

[0121]

As described in detail above, according to the present invention,
Since an external microphone that inputs an audio signal and a remote control device that can operate the audio recording / playback device can be connected together by using one input terminal, the number of input terminals required for the device can be reduced. It can be omitted, and miniaturization of the device itself can be expected.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an audio recording / reproducing apparatus according to a first embodiment.

FIG. 2 is an external view of the audio recording / reproducing apparatus according to the first embodiment when viewed obliquely from the front.

FIG. 3 is an external view of the audio recording / reproducing apparatus according to the first embodiment when viewed obliquely from the rear.

FIG. 4 is a diagram for explaining data recorded in a memory card.

FIG. 5 is a circuit configuration diagram and an external view of headphones with a remote controller as a remote control device according to the first embodiment of the present invention.

FIG. 6 is a diagram illustrating a first example of a mechanism for preventing reverse insertion of headphones with a remote controller.

FIG. 7 is a diagram for explaining a second example of a mechanism for preventing reverse insertion of headphones with a remote controller.

FIG. 8 is a diagram illustrating a third example of a mechanism for preventing reverse insertion of headphones with a remote controller.

FIG. 9 is a diagram for explaining a fourth example of a mechanism for preventing reverse insertion of headphones with a remote controller.

FIG. 10 is a diagram showing a flowchart for explaining a main operation of the audio recording / reproducing apparatus according to the first embodiment.

FIG. 11 is a diagram showing a flowchart for explaining a recording process in the recorder mode according to the first embodiment.

FIG. 12 is a diagram showing a circuit configuration and an operation flow chart of a recording process in the second embodiment.

FIG. 13 is a diagram showing a circuit configuration according to a third embodiment.

FIG. 14 is a diagram showing a circuit configuration according to a fourth embodiment.

[Explanation of symbols]

101 Built-in microphone 102 Jack 103 Input selector switch 113 speakers 116 Control circuit (CPU) 117 memory card 120 operation switch group 125 switch a (SWa) 126 Switch b (SWb) 127 switch (RMsw) 128 switch a (RMswa) 129 Switch b (RMswb) 201 Audio recording / reproducing apparatus main body 210 menu button 212 Operation mode switch 215 Main switch 216 headphone jack 225 holes 226 Mark 500 remote control body 501 headphone plug 502 remote control plug 503 playback switch (PLAYsw) 504 Fast-forward switch (FFsw) 505 Rewind switch (REWsw) 506 Stop switch (STOPsw) 507 Headphone plug unit with remote control 508 protrusion 509 step 510 landmarks

Claims (5)

[Claims] 1. A receiving means for receiving a control signal for controlling the operation of the audio recording / reproducing apparatus from an input terminal for inputting an audio signal from the outside, and based on the control signal received by the receiving means. An audio recording / reproducing apparatus comprising: a control unit for controlling the operation of the audio recording / reproducing apparatus. 2. A recorder mode, which is an operation mode capable of recording and reproducing audio, and a player mode, which is an operation mode in which audio recording is not possible but recorded audio can be reproduced. In an audio recording / reproducing apparatus having ,, an input unit for inputting an input signal from an external device, and an audio signal input to the input unit or an audio signal obtained by a built-in microphone in the recorder mode. Recording means for recording on a recording medium, and control means for controlling the operation of the audio recording / reproducing apparatus based on an input signal input to the input means in the player mode. Audio recording and playback device. 3. A detection means for detecting whether or not a remote operation device is connected to the input means, and the detection means detects that the remote operation device is connected to the input means. In this case, the audio recording / reproducing apparatus according to claim 2, further comprising: a prohibiting unit that prohibits the recording operation of the audio signal by the recording unit. 4. A detecting means for detecting whether or not a remote control device is connected to the input means, and the detecting means for detecting whether or not the remote control device is connected. The audio recording / reproducing device according to claim 2, further comprising: a selecting device that selects an audio signal obtained from the built-in microphone when the audio signal is recorded by the recording device. apparatus. 5. A connection means connected to an audio signal input section of an audio recording / reproducing apparatus, a control signal generating means for generating an operation control signal of the audio recording / reproducing apparatus, and an operation control generated by the control signal generating means. A control signal supplying means for supplying a signal to the audio signal input section of the audio recording / reproducing apparatus via the connecting means.