JP4702046B2 - Recording and / or reproducing device, control device and control method - Google Patents

Description

The present invention relates to a recording and / or reproducing apparatus, a control apparatus, and a control method , such as a portable HDD recording / reproducing apparatus.

  FIG. 12 is a schematic diagram showing the configuration and connection state of a conventional CD system device 110 and portable HDD recording / reproducing device 111. The common parts of the CD system device 10 and the portable HDD recording / reproducing device 12 described in the best mode of the present invention to be described later are designated by the same reference numerals, their descriptions are omitted, and only the main points are described.

  The CD system device 110 and the portable HDD recording / reproducing device 111 are connected to each other by two 4-pole stereo mini-cables 115 and 116, and recorded on the HDD 18 of the portable HDD recording / reproducing device 111 under the control of the CD system device 110. The playback sound of the music being played is output from a speaker (not shown) of the CD system device 110, or the music data of the CD in the CD system device 110 is sent from the CD system device 110 to the portable HDD recording / reproducing device 111, to the HDD 18. Recording has been proposed or publicly known. The user records the music data from the CD system device 110 on the HDD 18 of the portable HDD recording / reproducing device 111, then disconnects the portable HDD recording / reproducing device 111 from the CD system device 110, carries it, and records it in the HDD 18 while carrying it. The music can be appropriately reproduced on the portable HDD recording / reproducing device 111 and the reproduced sound can be heard from the headphones of the portable HDD recording / reproducing device 111.

  When the music recorded on the HDD 18 of the portable HDD recording / reproducing device 111 is reproduced on the speaker of the CD system device 110, the portable HDD is connected from the CD system device 110 via the line C (control signal line) of the 4-pole stereo mini cable 116. A reproduction request control signal is transmitted to the recording / playback device 111, and the music reproduction signal is portable via the line L (left audio signal line) and the line R (right audio signal line) of the 4-pole stereo mini cable 116. The data is transmitted from the HDD recording / reproducing device 111 to the CD system device 110.

  When recording CD music in the CD system device 110 on the HDD 18 of the portable HDD recording / reproducing device 111, a recording request is made from the CD system device 110 to the portable HDD recording / reproducing device 111 via the line C of the 4-pole stereo mini cable 116. On the other hand, when the portable HDD recording / reproducing device 111 is capable of recording, the portable HDD recording / reproducing device 111 transmits the CD system device via the line C of the 4-pole stereo mini cable 115. 110, the CD system device 110 transmits the music playback signal to the portable HDD recording / playback device 111 via the audio signal lines L and R of the 4-pole stereo mini cable 115. To do.

  The 4-pole stereo mini cable has only one control signal transmission line, and the audio signal transmission lines L and R are one-way transmissions. In the HDD recording / reproducing apparatus 111, two four-pole stereo mini cables 115 and 116 are required.

Patent Document 1 discloses a mobile phone in which a commercially available plug can be used when an audio device is connected to a mobile phone and a reproduced sound from the audio device is recorded in a storage device in the mobile phone (Patent). Reference 1 paragraph 0017). In the telephone, when recording the reproduction sound from the audio device to the storage device in the telephone, the audio device is connected to the earphone / microphone connection jack, and at the time of calling or reproducing the audio of the storage device of the telephone The connection between each terminal of the earphone microphone connection jack and each amplifier is switched when recording the reproduction sound from the audio device (the earphone microphone connection jack 2 and the amplifier 14A in FIG. 1 etc. of Patent Document 1). ~ 14E and switch circuit 12).
JP 2004-56485 A

Since the conventional 4-pole stereo cable has only one control signal transmission line, for example, the control signal line is used to send a control signal instructing to prepare recording from the portable HDD recording / reproducing device 111 from the CD system device 110. In the case of transmission, a response signal notifying that preparation has been completed can not be transmitted .

  In Patent Document 1, a common terminal of an earphone microphone connection jack of a mobile phone is used for audio output when an earphone microphone is connected (FIG. 2 of Patent Document 1), and when an audio device is connected (Patent Document 1). FIG. 1) only discloses use for audio input. The mobile phone of Patent Document 1 can record the playback sound from the audio device to the storage device when the audio device is connected, but transmits the audio of the storage device in the mobile phone to the audio device when the audio device is connected. Thus, it is not designed to be played back by the audio device.

  Patent Document 1 merely discloses switching the connection between each audio signal terminal of the earphone microphone connection jack in the mobile phone and each audio signal amplifier, and from one of the mobile phone and the audio device to the other. There is no mention of the switching relationship between the audio signal transmission line and the audio signal jack terminal based on the control signal and the response from the other device to the one device.

An object of the present invention is to enable bidirectional transmission of control signals and data between a recording and / or reproducing apparatus and a control apparatus, despite a cable having only one control line such as a 4-pole stereo mini cable. It is intended to provide a recording and / or reproducing device, a control device, and a control method .

The recording and / or reproducing apparatus of the present invention can be connected to the control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal. The recording and / or reproducing apparatus includes a determination unit that determines whether a control signal received from the control device via the first transmission line needs a response to the control device; A switching means for switching the second transmission line to a response line to the control device when it is determined to be necessary, a response transmission means for sending a response to the control device via the second transmission line,
And switching means for switching the second transmission line to transmission of an audio signal after transmitting a response to the control device via the second transmission line.

  Another recording and / or reproducing device of the present invention can be connected to the control device via a first transmission line for transmitting a control signal and a second transmission line for transmitting an audio signal. When the other recording and / or reproducing device receives a control signal from the control device via the first transmission line, the second transmission line is switched from the transmission of the audio signal to the response line for a predetermined time, and then the audio signal. If a response to the control device is required for the switching means for returning to the transmission and the control signal, a response is sent to the control device via the second transmission line being switched to the response line of the second transmission line. Response transmitting means for transmitting.

  The control device of the present invention can be connected to a recording and / or playback device via a first transmission line for transmitting a control signal and a second transmission line for transmitting an audio signal. Whether the control device needs to wait for a control signal transmitting means for transmitting a control signal to the recording and / or reproducing device via the first transmission line and a response from the recording and / or reproducing device to the control signal. And a switching means for switching the second transmission line from the recording and / or reproducing apparatus to the control line when the determination means determines that it is necessary to wait for a response, and a second transmission. Response receiving means for receiving a response from the recording and / or reproducing device via the second transmission line being switched to the response line, and from the recording and / or reproducing device via the second transmission line And switching means for switching the second transmission line to the transmission of the audio signal after receiving the response.

  Another control device of the present invention can be connected to a recording and / or reproducing device via a first transmission line for transmitting a control signal and a second transmission line for transmitting an audio signal. The other control device includes a control signal transmitting means for transmitting a control signal to the recording and / or reproducing device via the first transmission line, and a control signal to the recording and / or reproducing device via the first transmission line. And switching means for switching the second transmission line from the transmission of the audio signal to the response line within a predetermined time and then returning to the transmission of the audio signal, and via the second transmission line only within the predetermined time Response receiving means for receiving a response.

  The control method of the present invention is applied to a recording and / or reproducing apparatus that can be connected to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal. The The control method includes a step of determining whether a control signal received from the control device via the first transmission line requires a response to the control device, and the determination means determines that a response is required. A step of switching the second transmission line to a response line to the control device, a step of transmitting a response to the control device via the second transmission line, and a response to the control device via the second transmission line. And switching the second transmission line to the transmission of the audio signal after transmission.

  Another control method of the present invention provides a recording and / or reproducing apparatus that can be connected to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal. Applied. In another control method, when a control signal is received from the control device via the first transmission line, the second transmission line is switched from the transmission of the audio signal to the response line for a predetermined time, and then returned to the transmission of the audio signal. And if a response to the control device is required for the control signal, a step of transmitting a response to the control device via the second transmission line being switched to the response line of the second transmission line; It has.

  The control method of the present invention is applied to a control device that can be connected to a recording and / or playback device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal. The The control method transmits a control signal to the recording and / or reproducing device via the first transmission line, and determines whether or not it is necessary to wait for a response from the recording and / or reproducing device to the control signal. And when the determination means determines that it is necessary to wait for a response, the step of switching the second transmission line to the response line from the recording and / or reproducing device to the control device, and the response line of the second transmission line Receiving a response from the recording and / or reproducing device via the second transmission line during switching, and after receiving a response from the recording and / or reproducing device via the second transmission line, And switching the two transmission lines to the transmission of the audio signal.

  Another control method of the present invention relates to a control device that can be connected to a recording and / or playback device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal. Applied. The another control method includes a step of transmitting a control signal to the recording and / or reproducing apparatus via a first transmission line, and a transmission of the control signal to the recording and / or reproducing apparatus via the first transmission line. Then, the second transmission line is switched from the transmission of the audio signal to the response line within a predetermined time, and then returned to the transmission of the audio signal, and the response is received via the second transmission line only within the predetermined time. And steps.

  According to the present invention, the second transmission line of the cable is temporarily switched from the data line to the response line, and the recording and / or reproducing apparatus responds to the control signal from the control apparatus to the recording and / or reproducing apparatus. If a response is required, the response can be transmitted from the recording and / or playback device to the control device via the second transmission line. As a result, the recording and / or reproducing apparatus and the control apparatus can be connected by a cable having only one control signal transmission line, thereby realizing transmission of the control signal, a response thereto, and an audio signal.

  FIG. 1 shows a connection state of the CD system device 10 and the portable HDD recording / reproducing device 12. Detailed configurations of the CD system device 10 and the portable HDD recording / reproducing device 12 are shown separately in FIGS.

  The portable HDD recording / reproducing device 12 has a size and weight that can be stored in a pocket of clothes and carried by a user. When the user listens to the music stored in the portable HDD recording / reproducing device 12, the user listens via headphones (not shown). The portable HDD recording / reproducing device 12 holds the data of the stored music as a file obtained by encrypting, for example, an MP3 or WMA file.

  In FIG. 1, lines L, R, G, and C in the four-pole stereo mini-cable 22 indicate a signal line for sound L (left), a signal line for sound R (right), a ground line, and a control line, respectively. L and R are data lines. The 4-pole stereo mini cable 22 transmits the audio signals L and R in both directions via the lines L and R. The 4-pole stereo mini-cable 22 also transmits a control signal in one direction from the CD system device 10 to the portable HDD recording / reproducing device 12 via a line C.

  In FIG. 1, the portable HDD recording / reproducing device 12 includes a switch 13, a microcomputer 14, an A / D 15, a D / A 16, a DSP 17, and an HDD 18.

  The microcomputer 14 sends a predetermined control signal to the switch 13 and the DSP 17 based on the control signal received from the CD system device 10 via the line C of the 4-pole stereo mini cable 22. The switch 13 connects the lines L and R to the A / D 15 or D / A 16 under the control of the microcomputer 14. The switch 13 also connects the microcomputer 14 to the line L only for a specific period based on the control from the microcomputer 14, and a control signal related to the response from the microcomputer 14 to the microcomputer 30 (FIG. 2) of the CD system device 10. To line L. The control signal related to the response of the microcomputer 14 can use the line R instead of the line L.

  The A / D 15 converts the analog signal from the switch 13 into a digital signal and sends it to the DSP 17. The D / A 16 converts the digital signal from the DSP 17 into an analog signal and sends it to the switch 13.

  The DSP 17 encodes the digital signal from the A / D 15 into digital data of a predetermined format and records it in the HDD 18. The DSP 17 reads the data of the designated music from the microcomputer 14 from the HDD 18, decodes it, and sends it to the D / A 16.

  2, the CD system device 10 includes a switch 27, a D / A 28, a DSP 29, and a microcomputer 30.

  The switch 27 connects the lines L and R of the 4-pole stereo mini cable 22 to the D / A 28 or a speaker amplifier (not shown) based on a control signal from the microcomputer 30. The switch 27 connects the line L of the 4-pole stereo mini cable 22 to the microcomputer 30 at a predetermined time based on the control signal of the microcomputer 30, and the control sent from the portable HDD recording / reproducing device 12 through the line L. A signal is sent to the microcomputer 30.

  When the DSP 29 records a CD song in the CD system device 10 on the HDD 18 of the portable HDD recording / reproducing device 12, the DSP 29 sends the song data read from the CD to the D / A 28. The D / A 28 converts the digital signal from the DSP 29 into an analog signal and sends it to the switch 27.

  When the music recorded on the HDD 18 of the portable HDD recording / reproducing device 12 is played back on the speaker of the CD system device 10, the microcomputer 30 of the CD system device 10 records the portable HDD recording via the line C of the 4-pole stereo mini cable 22. A reproduction request control signal is sent to the microcomputer 14 of the re-equipment 12. Upon receiving the control signal, the microcomputer 14 sends a control signal for connecting the D / A 16 to the lines L and R of the 4-pole stereo mini cable 22 to the switch 13 and processes data of a predetermined music from the HDD 18 to the DSP 17. Send a control signal.

  Based on the control signal from the microcomputer 14, the DSP 17 reads data related to a predetermined music from the HDD 18, decodes it, and sends it to the D / A 16. The D / A 16 converts the digital signal from the DSP 17 into an analog signal and sends it to the switch 13. The switch 13 sends the analog signal from the D / A 16 to the lines L and R of the 4-pole stereo mini cable 22.

  On the other hand, in the CD system device 10, the microcomputer 30 sends a control signal for reproduction request to the microcomputer 14 of the portable HDD recording / reproducing device 12, and then sends a corresponding control signal to the switch 27. As a result, the switch 27 connects the lines L and R of the 4-pole stereo mini cable 22 to the line on the speaker amplifier side, and from the portable HDD recording / reproducing device 12 via the lines L and R of the 4-pole stereo mini cable 22. The transmitted music playback signal is sent to the left and right speakers via the speaker amplifier. Thus, the playback sound of the music is output from the left and right speakers in the CD system device 10.

  FIG. 3 shows signal waveforms on the lines C and L of the 4-pole stereo mini-cable 22 when a CD music piece in the CD system device 10 is recorded on the HDD 18 of the portable HDD recording / reproducing device 12. Although the signal line L is used in FIG. 3, the signal line R can be used instead of the signal line L. With reference to FIG. 3, the operation of the CD system device 10 when recording music on a CD on the HDD 18 of the portable HDD recording / reproducing device 12 will be described.

  The microcomputer 30 transmits a recording request control signal to the microcomputer 14 of the portable HDD recording / reproducing device 12 via the line C of the 4-pole stereo mini cable 22 at time t1. The microcomputer 30 also sends an instruction to the switch 27 to connect the line L of the 4-pole stereo mini cable 22 to the microcomputer 30.

  When the microcomputer 14 receives the recording request control signal, the microcomputer 14 checks whether or not it is possible to add music data to the HDD 18. An instruction to connect the line L to the microcomputer 14 is issued. As a result, the line L of the 4-pole stereo mini cable 22 is connected to the microcomputer 14 at time t2. If the microcomputer 14 determines that it is difficult to add music data to the HDD 18, nothing is returned to the microcomputer 30, and the lines L, R, and D of the 4-pole stereo mini cable 22 in the switch 13 are returned. Maintain connection with / A16.

  The microcomputer 14 generates an understanding control signal at time t3, and the control signal is sent to the CD system device 10 via the line L of the 4-pole stereo mini cable 22. Thereafter, the microcomputer 14 promptly instructs the switch 13 to connect the lines L and R of the 4-pole stereo mini cable 22 to the A / D 15. Thus, at time t4, the lines L and R of the 4-pole stereo mini cable 22 are connected to the A / D 15.

  On the other hand, in the CD system device 10, the switch 27 connects the line L of the four-pole stereo mini-cable 22 to the microcomputer 30, so that the control signal from the microcomputer 14 is transmitted to the microcomputer 30. In response to this, the microcomputer 30 instructs the switch 27 to connect the lines L and R of the four-pole stereo mini-cable 22 to the D / A 28 and also instructs the DSP 29 to generate music data of the CD. .

  Thereafter, the music of the CD is generated as a predetermined digital signal in the DSP 29, and the digital signal is converted into an analog signal in the D / A 28. The analog signal is transmitted as a recording data signal to the portable HDD recording / reproducing device 12 through the switch 27 and the lines L and R of the 4-pole stereo mini-cable 22.

  The recording data signal transmitted to the portable HDD recording / reproducing device 12 through the lines L and R of the 4-pole stereo mini-cable 22 is sent to the A / D 15 via the switch 13 and converted into a digital signal at the A / D 15. . The DSP 17 encodes the digital signal from the A / D 15 in a predetermined format and records the encoded data on the HDD 18.

  If the microcomputer 30 does not receive an acknowledgment control signal from the microcomputer 14 even after a predetermined time has elapsed since the recording request control signal was transmitted to the microcomputer 14, the recording of the music from the CD system device 10 to the HDD 18 is not performed. It is determined that it is impossible, and the current recording process is stopped.

  Thus, the CD system device 10 and the portable HDD recording / reproducing device 12 are connected by only the 4-pole stereo mini-cable 22, and the music data of the portable HDD recording / reproducing device 12 is written from the CD system device 10 to the portable HDD 12. The reproduction of the music in the HDD 18 of the HDD recording / reproducing device 12 in the CD system device 10 is executed without any trouble.

  FIG. 4 is a block diagram of the recording and / or reproducing device 40. The technical matters common to the recording and / or reproducing device 40, the recording and / or reproducing device 46 (FIG. 5), the control device 55 (FIG. 6), and the control device 63 (FIG. 7), which will be described later, are recorded and / or These will be described together in the description of the playback device 40. The recording and / or reproducing device 40 (FIG. 4) and the control device 55 (FIG. 6), and the recording and / or reproducing device 46 (FIG. 5) and the control device 63 (FIG. 7) are the first and second. Can be connected to the control device 55 via a cable 50 including the transmission lines 51 and 52.

  An example of the recording and / or reproducing devices 40 and 46 is the portable HDD recording / reproducing device 12. An example of the control devices 55 and 63 is the CD system device 10. The recording and / or playback devices 40 and 46 are not limited to audio recording and / or playback devices, and may be other content recording and playback devices such as video. The control devices 55 and 63 may be system devices with a playback device for a disc other than a CD, or may be system devices with a tuner. When the control devices 55 and 63 are tuner-equipped system devices, data whose contents are radio or television broadcast contents are stored in storage devices (not shown) of the recording and / or playback devices 40 and 46. The storage device in the portable HDD recording / reproducing device 12 is the HDD 18.

  The recording and / or reproducing device 40 includes a determination unit 41, a switching unit 42, and a response transmission unit 43. The determination unit 41 determines whether or not a response to the control device 55 is necessary for the control signal received from the control device 55 via the first transmission line 51. If the determination by the determination unit 41 is positive, the switching unit 42 switches the second transmission line 52 to a response line from the recording / reproducing device 40 to the control device 55. The response transmission unit 43 transmits a response to the control device 55 via the second transmission line 52 as a response line. The switching unit 42 switches the second transmission line 52 to the data line after transmitting a response to the control device 55 via the second transmission line 52.

  An example of the cable 50 is a four-pole stereo mini cable 22. The cable 50 may be a non-mini four-pole stereo cable. An example of the first and second transmission lines 51 and 52 is the C line and the L line of the four-pole stereo mini cable 22, respectively. The second transmission line 52 may be the R line of the 4-pole stereo mini cable 22.

  A control signal that requires a response to the control devices 55 and 63 is, for example, a control signal that requests recording of content data from the control devices 55 and 63 to the storage device of the recording and / or reproducing devices 40 and 46. is there.

  In this way, the recording and / or reproducing device 40 controls the processing that requires a response from the recording and / or reproducing device 40 to the control device 55 in response to a control signal from the control device 55 to the recording and / or reproducing device 40. It is sufficient to connect to the device 55 with only one cable 50, and connection work and cable management can be rationalized.

  FIG. 5 is a block diagram of the recording and / or playback device 46. The recording and / or reproducing device 46 includes a switching unit 47 and a response transmission unit 48.

  When the switching means 47 receives the control signal from the control device 63 via the first transmission line 51, the switching means 47 switches the second transmission line 52 from the data line to the response line for a predetermined time, and then returns to the data line. If a response to the control signal is required for the control device 63, the response transmission means 48 transmits a response to the control device 63 via the second transmission line 52 that is being switched to the response line.

  In the recording and / or reproducing device 46, the one corresponding to the determination means 41 in the recording and / or reproducing device 40 (FIG. 4) can be omitted.

  FIG. 6 is a block diagram of the control device 55. The control device 55 includes a control signal transmission unit 56, a determination unit 57, a switching unit 58, and a response reception unit 59.

  The control signal transmission unit 56 transmits a control signal to the recording and / or reproducing apparatus 40 via the first transmission line 51. The determination unit 57 determines whether or not it is necessary to wait for a response from the recording and / or reproducing apparatus 40 to the control signal. If the determination by the determination unit 57 is positive, the switching unit 58 switches the second transmission line 52 to a response line from the recording / reproducing device 40 to the control device 63.

  The response receiving unit 59 receives a response from the recording and / or reproducing device 40 via the second transmission line 52 as a response line. The switching means 58 also switches the second transmission line 52 to the data line after receiving a response from the recording and / or reproducing device 40 via the second transmission line 52.

  As a result, the control device 55 can record content data such as a CD and the like without any trouble even though the control device 55 is connected to the recording and / or reproducing device 40 by only one cable 50. Can be sent to.

  FIG. 7 is a block diagram of the control device 63. The control device 63 includes a control signal transmission unit 64, a switching unit 65, and a response reception unit 66.

  The control signal transmission means 64 transmits a control signal to the recording and / or reproducing device 46 via the first transmission line 51. The switching unit 65 switches the second transmission line 52 from the data line to the response line within a predetermined time after transmitting the control signal to the recording and / or reproducing device 46 via the first transmission line 51, and thereafter Returns to the data line. The response receiving unit 66 receives a response via the second transmission line 52 only when there is a response from the recording and / or playback device 46 within the predetermined time.

  The control device 63 can omit the one corresponding to the determination means 57 of the control device 55 (FIG. 6).

  FIG. 8 is a flowchart of the recording / reproducing apparatus control method 70. The recording and / or reproducing apparatus control method 70 corresponds to the recording and / or reproducing apparatus 40 (FIG. 4), and technical matters applied to the recording and / or reproducing apparatus 40 are described in the recording and / or reproducing apparatus control method 70. Is also applicable.

  In S71, it is determined whether or not a control signal has been received from the control device 55 via the first transmission line 51. If the determination is positive, the process proceeds to S72. If not, the recording and / or reproducing device is determined. The control method 70 ends. In S72, it is determined whether or not a response to the control device 55 is required for the received control signal. If the determination is positive, the process proceeds to S73, and if not, the recording and / or playback device control method is determined. 70 is ended.

  In S73, the second transmission line 52 is switched to a response line from the recording / reproducing apparatus 40 to the control apparatus 55. In S74, a response is transmitted to the control device 55 via the second transmission line 52 as a response line. In S75, the second transmission line 52 is switched to the data line.

  FIG. 9 is a flowchart of the recording and / or reproducing apparatus control method 80. The recording and / or reproducing apparatus control method 80 corresponds to the recording and / or reproducing apparatus 46 (FIG. 5), and technical matters applied to the recording and / or reproducing apparatus 46 are described in the recording and / or reproducing apparatus control method 80. Is also applicable.

  When the control signal of the control device 63 is received via the first transmission line 51 (determination of S81 is positive), the second transmission line 52 is switched from the data line to the response line for a predetermined time, and then returned to the data line ( S82). In S83, if a response to the control device 63 is required for the control signal, the response is transmitted to the control device 63 via the second transmission line 52 within a predetermined time.

  FIG. 10 is a flowchart of the control device control method 90. The control device control method 90 corresponds to the control device 55 (FIG. 6), and technical matters applied to the control device 55 can also be applied to the control device control method 90.

  In S <b> 91, a control signal is transmitted to the recording and / or reproducing apparatus 46 via the first transmission line 51. In S92, it is determined whether or not it is necessary to wait for a response from the recording and / or reproducing device 46 with respect to the control signal. If the determination is positive, the process proceeds to S93. If not, the control device control method 90 is terminated. To do.

  In S93, the second transmission line 52 is switched to a response line from the recording / reproducing apparatus 46 to the control apparatus 55. When a response from the recording and / or reproducing device 46 is received via the second transmission line 52 as a response line (determination in S94 is positive), in S95, the second transmission line 52 is switched to the data line. In S94, if the determination of NO continues for a predetermined time or longer, it is possible to forcibly terminate S95 and proceed to S95.

  FIG. 11 is a flowchart of the control signal control method 100. The control signal control method 100 corresponds to the control device 63 (FIG. 7), and technical matters applied to the control device 63 can also be applied to the control signal control method 100.

  In S 101, a control signal is transmitted to the recording and / or reproducing apparatus 46 via the first transmission line 51. In S101, the switching of the second transmission line 52 to the response line is maintained within a predetermined time after the transmission of S101, and after the predetermined time has elapsed, the second transmission line 52 is returned to the data line. In S103, a response is received via the second transmission line 52 only within a predetermined time.

  Although the present invention has been described with respect to the best mode, the present invention is not limited to this, and each constituent element in the best mode can be modified and embodied without departing from the spirit of the invention. In addition, a plurality of constituent elements disclosed in the best mode are conveniently combined and added, or some constituent elements are deleted to form various inventions without departing from the gist of the invention. can do. Furthermore, various inventions can be formed by selecting predetermined components among a plurality of disclosed embodiments and combining them.

It is a figure which shows the connection state of CD system apparatus and portable HDD recording / reproducing apparatus. It is a block diagram of CD system apparatus. It is a figure which shows the signal waveform in each line C and L of a 4 pole stereo mini cable when recording the music of CD in CD system apparatus on HDD of portable HDD recording / reproducing apparatus. It is a block diagram of a recording and / or reproducing device. FIG. 6 is a block diagram of another recording and / or playback device. It is a block diagram of a control apparatus.

It is a block diagram of another control apparatus. It is a flowchart of a recording and / or reproducing apparatus control method. 10 is a flowchart of another recording and / or reproducing apparatus control method. It is a flowchart of a control device control method. It is a flowchart of another control signal control method. It is the schematic about the structure and connection state of the conventional CD system apparatus and portable HDD recording / reproducing apparatus.

Explanation of symbols

40: recording and / or playback device, 41: determination unit, 42: switching unit, 43: response transmission unit, 46: recording and / or playback unit, 47: switching unit, 48: response transmission unit, 50: cable, 51 : First transmission line, 52: second transmission line, 55: control device, 56: control signal transmission means, 57: determination means, 58: switching means, 59: response reception means, 63: control device, 64: Control signal transmitting means, 65: switching means, 66: response receiving means, 70: recording and / or reproducing apparatus control method, 80: recording and / or reproducing apparatus control method, 90: control apparatus control method, 100: control signal control Method.

Claims (11)

In a recording apparatus that can be connected to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
A determination unit that determines whether or not a response indicating whether or not recording to the control device is necessary with respect to a control signal related to recording received from the control device via the first transmission line;
Switching means for switching the second transmission line to a response line to the control device when the determination means determines that a response is required;
Response switching means for transmitting a response indicating whether or not recording is possible to the control device via the second transmission line after switching the second transmission line to the response line to the control device by the switching means;
The switching means for switching the second transmission line to transmission of an audio signal after transmitting a record availability response to the control device via the second transmission line;
A recording apparatus comprising: In a recording apparatus that can be connected to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
When a control signal related to recording is received from the control device via the first transmission line, switching means for switching the second transmission line from the transmission of the audio signal to the response line for a predetermined time and then returning to the transmission of the audio signal When,
If a response to the control device is required for the control signal, the switching means switches the second transmission line to a response line to the control device, and then to the response line of the second transmission line. Response transmitting means for transmitting a response indicating whether or not recording is possible to the control device via the second transmission line during switching,
A recording apparatus comprising: 3. The recording according to claim 1, wherein the first transmission line is a control line in a 4-pole stereo cable, and the second transmission line is a left or right audio transmission line in the 4-pole stereo cable. Equipment . Further comprising recording means for recording an audio signal received from the control device;
4. The control signal that requires a response indicating whether or not recording is possible to the control device is a control signal that instructs the recording unit to prepare for recording or to start recording. The recording device described in 1. The recording apparatus according to claim 1, wherein the control device includes a disk reproducing device . In a control device that can be connected to a recording device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
Control signal transmission means for transmitting a control signal relating to recording to the recording apparatus via the first transmission line;
A determination means for determining whether or not it is necessary to wait for a response indicating whether recording is possible from the recording device with respect to the control signal;
Switching means for switching the second transmission line from the recording device to the control device when it is determined that the determination unit needs to wait for a response;
After switching the second transmission line to the line of response from the recording apparatus by the switching unit, from the recording device via the second transmission line in the switching of the response line of the second transmission line Response receiving means for receiving a response indicating whether or not recording is possible,
The switching means for switching the second transmission line to transmission of an audio signal after receiving a response from the recording device via the second transmission line;
A control device comprising: In a control device that can be connected to a recording device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
Control signal transmission means for transmitting a control signal relating to recording to the recording apparatus via the first transmission line;
Switching the second transmission line from the transmission of the audio signal to the response line for a predetermined time after transmitting the control signal to the recording device via the first transmission line, and then switching back to the transmission of the audio signal Means,
Response receiving means for receiving a response indicating whether or not recording is possible via the second transmission line only within the predetermined time when the second transmission line is switched to a response line by the switching means;
A control device comprising: In a control method for a recording apparatus that is connectable to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
The control signal to a recording received from the control device via the first transmission line, a determining step of determining whether it is necessary to respond the recording possibility of the said control device,
A first switching step of switching the second transmission line to a response line to the control device when it is determined that a response is required in the determination step;
A response transmission step of transmitting a response indicating whether or not recording is possible to the control device via the second transmission line after switching the second transmission line to a response line to the control device in the first switching step; ,
A second switching step of switching the second transmission line to transmission of an audio signal after transmitting a record availability response to the control device via the second transmission line;
A control method for a recording apparatus , comprising: In a control method for a recording apparatus that is connectable to a control apparatus via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
When the control signal related to recording is received from the control device via the first transmission line, the switching step of switching the second transmission line from the transmission of the audio signal to the response line for a predetermined time and then returning to the transmission of the audio signal. When,
If a response to the control device is required for the control signal, the second transmission line is switched to a response line to the control device in the switching step, and then to the response line of the second transmission line. A response transmission step of transmitting a response indicating whether or not recording is possible to the control device via the second transmission line during switching,
A control method for a recording apparatus , comprising: In a control method of a control device that is connectable to a recording device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
A control signal transmission step of transmitting a control signal relating to recording to the recording apparatus via the first transmission line;
A determination step of determining whether or not it is necessary to wait for a response indicating whether recording is possible from the recording device with respect to the control signal;
A first switching step of switching the second transmission line to a response line from the recording device to the control device when it is determined that it is necessary to wait for a response in the determination step ;
After switching the second transmission line to the response line from the recording device in the switching step, the recording device passes through the second transmission line being switched to the response line from the recording device. A response receiving step for receiving a response indicating whether or not recording is possible;
A second switching step of switching the second transmission line to transmission of an audio signal after receiving a response from the recording device via the second transmission line;
The control method of the control apparatus characterized by the above-mentioned. In a control method of a control device that is connectable to a recording device via a first transmission line that transmits a control signal and a second transmission line that transmits an audio signal,
A control signal transmission step of transmitting a control signal relating to recording to the recording apparatus via the first transmission line;
Switching the second transmission line from the transmission of the audio signal to the response line for a predetermined time after transmitting the control signal to the recording device via the first transmission line, and then switching back to the transmission of the audio signal Steps,
A response receiving step of receiving a response indicating whether or not recording is possible via the second transmission line only within the predetermined time when the second transmission line is switched to a response line by the switching step;
The control method of the control apparatus characterized by the above-mentioned.

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