JPH1139957A - Transmission cable, transmission cable-connected jack and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit signals of both methods and to enhance the operation of information signal dubbing by dealing with the input and output of a digital signal through the tip hole portion of a plug center protrusion, dealing with the input and output of an analog signal through a terminal portion on the side face of the hole portion, and unifying a digital signal transmission line and an analog signal transmission line. SOLUTION: A hole portion 3 inputting and outputting a digital signal such as an optical signal and a terminal portion 4 on the side face thereof inputting and outputting an analog signal are formed at one end portion of a transmission cable 1 first plug 2. The digital signal transmission line 5a of an optical cable and an analog signal transmission line 5b are unified and connected to the other end of the first plug 2. For example, an optical signal from a laser diode via the hole portion 3 is detected by the photodetector of the jack of a first plug 2-connected recording device. The terminal portion 4 is composed of an Lch terminal 6, an Rch terminal 7, and a GND terminal 8 made of conduction material and having insulation portions 9 between the same.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission cable for transmitting an analog signal and a digital signal, a jack to which the transmission cable is connected, and a recording device in which the transmission cable and the jack are connected to perform recording on a recording medium. Related to the device.

[0002]

2. Description of the Related Art Conventionally, information signals such as audio signals are
When dubbing a recording medium stored in a recording / reproducing apparatus, dubbing is performed by electrically connecting the reproducing apparatus to the recording apparatus and transmitting an information signal such as an audio signal. At this time, the recording device and the reproducing device transmit and receive information signals using a transmission cable for transmitting information signals such as audio signals. As described above, when dubbing an audio signal or the like, the transmission cable connecting the electronic devices includes an analog cable for transmitting an analog signal, a digital cable for transmitting a digital signal, and a digital optical signal. Optical cables are used.

When dubbing a signal from a read-only first optical disc to a recordable / reproducible second optical disc using such an analog cable, digital cable, or optical cable, the first optical disc is loaded. First
The first electronic device is connected to the second electronic device on which the second optical disk is mounted by connecting each of the above cables to the first electronic device.
From the first electronic device to the second electronic device.

At this time, when dubbing a signal from the first optical disk to the second optical disk, it is possible to dub the signal to the second optical disk in a digital manner. However, dubbing of a digital signal from a second optical disc to a third optical disc capable of recording and reproduction is restricted, and diving cannot be performed. That is, digital dubbing to the first generation is permitted, but digital dubbing to the second generation is
Forbidden due to copyright issues. If the user desires digital dubbing to the second generation, only dubbing in the analog system is permitted.

Therefore, the second electronic device is required to be capable of transmitting and receiving digital signals and analog signals. In the first electronic device, when a signal is transmitted to the second electronic device and the signal recorded on the first optical disk is dubbed to the second optical disk, some users may digitally copy the signal to the second optical disk. In some cases, the user prefers not to perform dubbing and prefers to dub to the second optical disc in an analog manner. Therefore, the first electronic device also needs to be able to transmit and receive digital signals and analog signals.

[0006]

As described above, the second
The second electronic device on which the optical disk is mounted must be capable of transmitting and receiving digital signals and analog signals. Therefore, the second electronic device includes:
A jack capable of transmitting and receiving digital signals and analog signals is provided. In this jack, plugs provided at the ends of a digital cable, an analog cable, and an optical cable have the same shape, and can be connected to a digital cable and an analog cable. As described above, the second electronic device is provided with jacks suitable for each system, and thus can contribute to miniaturization of the device itself. This jack has two types, one for signal input and one for signal output, and has one type of mechanical structure. However, it has a laser diode for transmitting an optical signal for signal output, and an optical signal for signal input. It has a photodetector for receiving.

However, a user who uses an electronic device equipped with such a jack has, for example, both an optical cable and an analog cable, and records, for example, on a first optical disk mounted on the first electronic device. When dubbing the input signal to a second optical disk mounted on a second electronic device by a digital signal, an optical cable is inserted into a jack and dubbing is performed. On the other hand, when dubbing a signal recorded on the first optical disk with an analog signal, it is necessary to replace the optical cable with an analog cable. That is, the user needs to replace the cable when selecting a digital system or an analog system when dubbing.

Further, when dubbing from the first optical disk to the second optical disk in an analog system, it is necessary to simultaneously dub additional information such as digital character information recorded on the first optical disk. There is an inconvenience of not being able to do so.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above situation, and has a transmission cable capable of transmitting an analog signal and a digital signal, and a jack to which the transmission cable is connected. , And a recording device.

[0010]

A transmission cable according to the present invention, which solves the above-mentioned problems, has a hole formed at the tip of a projection arranged at the center and a side surface of the hole for inputting and outputting digital signals. A plug having a terminal for outputting an analog signal, a digital signal transmission line for transmitting a digital signal input / output from the hole, and an analog signal transmission line for transmitting an analog signal input / output from the terminal. So that it can transmit analog signals,
Digital signals can also be transmitted.

[0011] The jack according to the present invention comprises a first plug for inputting and outputting a digital signal and an analog signal;
A second plug having substantially the same shape as the first plug and inputting / outputting only an analog signal is selectively connected to a third plug inputting / outputting only a digital signal. An analog signal input / output unit, a digital signal input / output unit for inputting / outputting a digital signal output from the first plug, and one of the first plug, the second plug, and the third plug inserted therein. Since it is provided with an identification means for identifying whether or not the digital signal is transmitted, it is possible to transmit and receive an analog signal and also to transmit and receive a digital signal.

Further, the recording apparatus according to the present invention comprises: a first plug for inputting and outputting a digital signal and an analog signal;
A second plug having substantially the same shape as the first plug and inputting / outputting only an analog signal, and a third plug selectively inputting / outputting only a digital signal; An analog signal input unit to which an analog signal input / output from the first plug or the second plug is input, and a digital signal input to input the digital signal input / output from the first plug or the third plug Unit, identification means for identifying whether one of the first plug, the second plug and the third plug is connected, and a signal input according to the identification result of the identification means is recorded on a recording medium. Since there are provided a converting means for converting the recording signal into a recording signal and a recording means for recording the recording signal converted by the converting means on a recording medium, the analog signal can be transmitted and the digital signal can be transmitted. No. it can also be input and output. Therefore, this recording apparatus can record a signal input to a recording medium regardless of whether an analog signal or a digital signal is input.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A transmission cable according to the present invention, a jack to which the transmission cable is connected, and a recording apparatus will be described below with reference to the drawings.

The transmission cable according to the present invention is used when dubbing an information signal recorded on a recording medium mounted on one recording device to a recording medium stored on the other recording device. Things.

As shown in FIG. 1, a transmission cable 1 according to the present invention includes a plug 2 connected to a jack of a recording apparatus at one end. The plug 2 includes a hole 3 formed at one end for inputting / outputting a digital signal, and a terminal 4 disposed on a side surface of the hole 3 for inputting / outputting an analog signal.

The transmission cable 1 has a digital signal transmission line 5a for transmitting a digital optical signal and an analog signal transmission line 5b for transmitting an analog signal at the other end of the plug 2. The digital signal transmission line 5a and the analog signal transmission line 5b are unified and connected to the other end of the plug 2. As the digital signal transmission line 5a, an optical cable capable of transmitting digital optical signals is used. Further, the digital signal transmission line 5a may be one that can transmit a modulated radio wave.

The hole 3 is formed substantially at the center of a projection formed at one end of the plug 2. This hole 3
Are configured to emit digital optical signals by being connected to an optical cable. This hole 3
Is an optical signal emitted from the laser diode, and is detected by a jack photodetector described later in a state where the plug 2 is connected to the jack.

The terminal portion 4 is formed on the outer peripheral side of the above-mentioned hole portion and includes an Lch terminal 6, an Rch terminal 7, and a GND terminal 8, and these Lch terminal 6, Rch terminal 7, GND terminal 8
An insulating section 9 is provided between them. This Lch terminal 6, R
The ch terminal 7 and the GND terminal 8 are made of a conductive material, and transmit an analog signal transmitted from an analog signal transmission line to the jack when connected to the jack. The plug 2 has an Lch terminal 6, an Rch terminal 7, and a GN
An insulating portion 9 made of an insulating material is provided for electrical insulation between the D terminals 8.

The transmission cable 1 thus configured is
Since the plug 2 having the hole 3 for outputting a digital optical signal and the terminal 4 for outputting an analog signal is provided, the analog signal can be transmitted and the digital signal can be transmitted. Therefore, according to the transmission cable 1, there is no need to use two cables, a cable for transmitting a digital signal and a cable for transmitting an analog signal, as in the related art.
Digital signal transmission and analog signal transmission can be performed with this transmission cable.

Next, a jack to which the above-described transmission cable is connected will be described.

In the following description of the jack, the plug 2 constituting the above-described transmission cable 1 is referred to as a first plug 2, and has substantially the same shape as the first plug 2 and transmits only analog signals. The plug that constitutes the second
Of the transmission cable for transmitting only digital optical signals is referred to as a third plug 1.
No. 1. And the jack described below is the first
Plug 2, second plug 10 and third plug 11 can be selectively inserted. These first plug 2, second plug 10 and third plug 1
Signal transmission is performed by inserting one of the ones.

The second plug 10 is, as shown in FIG.
The first plug 2 is configured in substantially the same manner as the first plug 2 and includes an Lch terminal 10a, an Rch terminal 10b, and a GND terminal 10c.
0b, the insulating part 9 is arranged between the GND terminals 10c.
This second plug 10 is different from the first plug 2,
No hole 3 for inputting / outputting an optical signal is provided. That is,
The second plug 10 can transmit only an analog signal.

The third plug 11 includes the Lch terminals 6 and 10a and the Rch terminals 7 of the first plug 2 and the second plug.
A portion corresponding to 10b and the GND terminals 8 and 10c is a non-conductive portion. Like the first plug 2, the third plug 11 has a hole formed at the tip end so that an optical signal can be input and output from the hole.

Jack 2 to which such a plug is connected
0, as shown in FIG. 3, includes an analog signal input unit 21 to which an analog signal is input, and a digital signal input unit 22 to which a digital signal including a photodetector is input. The jack 20 has a GND terminal 23 arranged to be in contact with the insertion slot 20a. In the case where the jack 20 outputs an optical signal, a photodiode may be arranged at a position where the photodetector 22 is arranged.

Such a jack 20 has substantially the same shape as the plug 2 constituting the transmission cable 1 and has a second terminal for outputting an analog signal from a terminal disposed on the side surface of the projection.
It can be connected to a plug. Therefore, the jack 20 includes an identification mechanism 24 for identifying whether the first plug 2 or the second plug 10 is inserted. As shown in FIG. 2, the identification mechanism 24 includes a plurality of detection units described later, and identifies the type of the plug inserted into the jack 20. These detection units are composed of, for example, terminals, are brought into contact with the inserted plugs, detect electrical signals, and transmit these signals to a recording device described later.

Here, this jack 20 is
As the plug of the transmission cable connected to a, one of the three types of plugs of the first, second, and third plugs 10, 11, and 12 described above is inserted. The first plug 2, the second plug 10, and the third plug 11 have substantially the same outer shape. That is, they are formed so that they can be correctly inserted and connected to the insertion port 20a in FIG. Second plug 10 and third plug
The plug 11 is basically composed of two parts. The first portion corresponds to a region A in FIG. 2 and is a portion formed to have a relatively small diameter and a tapered tip side. On the other hand, the second portion is a region B, a region C,
It corresponds to the region D, and is formed in a cylindrical shape having a uniform diameter larger than the portion in the region A.

Inside the jack 20, a first detector 25 is disposed at a position corresponding to the area A, and a second detector 26 is disposed at a position corresponding to the area B. A third detecting unit 27 and a fourth detecting unit 28 are arranged at a position corresponding to the region C, and a fifth detecting unit 27 is disposed at a position corresponding to the region C.
Are disposed. The signal detected by each detection unit is supplied to a system controller (hereinafter, referred to as a CPU) 50 of the printing apparatus described later.

When the first plug 2 or the second plug 10 is inserted into the jack 20, the output from the Lch terminals 6 and 10a from the first detector 25 is input to the CPU 50 as the first output A. Then, from the second detection unit 26, Rc
The output from the h terminals 7 and 10b is used as a second output B as CP
Input to U50. These first and second detectors 25,
The signal output from 26 is an analog information signal, and when it is determined by the identification mechanism 24 that an analog signal has been input, the information signal is output by the first and second detectors 25 and 26. Is detected. A predetermined voltage Vc is applied to the third detector 27 via a resistor 31. The fourth detection unit 28 is grounded,
Is output. The fourth detection unit 28 is movable, and when the plug is inserted into the insertion port 20a, the fourth detection unit 28 is pressed against the region C and comes into contact with the sixth detection unit 30. 20a
When it is pulled out from the, the contact with the sixth detection unit 30 is released. The signal detected by the sixth detection unit 30 is output as a fifth output E, and the resistance 32
The voltage Vc is applied via the. The fifth detector 29 is configured to output a signal from the area D as a sixth output F, and the voltage Vc is applied via the resistor 33.

As a result, when a plug is inserted into or removed from the insertion port 20a, the fourth output D to the sixth output F change as shown in Table 1.

[0030]

[Table 1]

Note that "L" in Table 1 indicates that the signal output from each detection unit is approximately 0, and "H" in Table 1 indicates that the signal output from each detection unit is a constant voltage Vc. Is shown.

That is, when the first plug 2 or the second plug 10 is inserted into the insertion port 20a, the third detecting section 27 is pressed by the region C which is a conductive section, so that the fourth detecting section 27 is pressed. , The logic L is output from the fourth output D. Further, the fourth detection unit 28
Comes into contact with the fifth detection unit 29, so that the sixth detection unit 30
Is also detected at the fifth output E, which is connected to the fifth output E. Further, the fifth detection unit 29 is connected to the region D, and since the region D is a conductive portion and is integrally formed as in the region C, the fifth detection unit 29 is grounded via the fourth detection unit 28,
The logic L is also detected at the sixth output F connected to the fifth detector 29.

Next, when the third plug 11 is inserted into the insertion port 20a, since the regions B to D are constituted by non-conductive portions, the third detecting portion 27 is in a floating state, and The voltage Vc is output from the output D of the fourth device via the resistor 31, and the signal of logic H is output from the fourth output D. Further, the fourth detection unit 28 is pressed by the non-conductive portion in the region B, and the sixth detection unit 30
, A logic L is output from the fifth output E. Further, the fifth detection unit 29 comes into a floating state because it comes into contact with the non-conductive portion, and the voltage Vc is output from the sixth output F via the resistor 33. As a result, logic H is output from the sixth output.

On the other hand, when the plug is not inserted into the insertion port 20a, the third detection unit 27 is in a floating state, and a signal of logic H is output from the fourth output. At this time, since the fourth detection unit 28 is not pressed by the plug, it is separated from the sixth detection unit 30, the voltage Vc is applied to the fifth output E via the resistor 32, and the fifth output E Also outputs a signal of logic H. Further, since the fifth detector 29 is in a floating state,
Is applied to the output F via the resistor 33, and a signal of logic H is output.

As described above, when the logic of E, which is the fifth output, is H, it is detected that no plug is inserted into the insertion port 20a. That is, the fifth
Is low, it is determined that the plug is inserted.

When any plug is inserted into the insertion port 20a, the determination is made as shown in Table 1 described above. That is, when the first plug 2 or the second plug 10 is inserted into the insertion port 20a, the logic of the fifth output E and the sixth output F becomes (L, L), and
When the plug 11 is inserted, the logic of the fifth output E and the sixth output F becomes (L, H), and the insertion port 20a
It is identified whether the plug inserted in the first plug 2 or the second plug 10 or the third plug 11 is inserted. Then, the jack 20 inputs, for example, the fifth output E and the sixth output F to the identification mechanism 24 to determine whether any of the first to third plugs 2, 10, 13 is inserted. Can be identified.

The jack 20 connects an Lch terminal and an Rch terminal of the first plug 2 to the first detection unit 25 and the second detection unit 26, thereby inputting an analog signal to the recording apparatus. I do. On the other hand, an optical signal output from the first plug 2 is detected by a photodiode and input to a recording device. Therefore, according to this jack 20, even if a transmission cable having the above-described first plug 2 or a transmission cable for transmitting only analog signals is inserted, signals from the inserted transmission cable can be transmitted to the recording device. Can be.

The above-described jack 20 is connected to a transmission cable for transmitting only an analog signal.
It cannot be determined whether the transmission cable having the plug 2 is inserted. As described above, if the identification of the first plug 2 and the second plug 10 cannot be determined, it becomes impossible to determine whether to receive the signal by the digital method or the analog method.

Therefore, a recording apparatus having the jack 20 employs a SCMS (Serial Copy Management System) and a PLL (Pha).
A "seLocked Loop" circuit is provided to determine whether a digital optical signal or an analog signal has been input. That is, in this recording apparatus, it is determined whether a digital signal or an analog signal is input as shown in Table 2 below.

[0040]

[Table 2]

That is, in this recording apparatus, when a digital optical signal is input from the jack 20,
Input to the PLL circuit. At this time, when the PLL circuit is locked by the input of the optical signal, the information signal does not include the prohibition code and the copy is not prohibited by the SCMS. As shown in Table 2, It is determined that a digital optical signal has been input. On the other hand, when the PLL circuit is not locked, it is determined that only analog transmission is being performed.
As shown in (1), it is determined that an analog signal is input.

Further, even if a digital information signal is input, a flag is set for a signal in which the digital information signal has already been dubbed to another recording medium once.
The PLL circuit can be locked, but not because copying to the second generation is prohibited. Therefore, such a signal is prohibited from being dubbed by the SCMS, but is prohibited from being digitally dubbed, and is input to the recording apparatus as an analog information signal. As described above, when the digital signal is flagged, it is determined that the digital signal is an analog signal, so that the recording apparatus can prohibit the dubbing using the digital information signal again.

As described above, by employing the SCMS and inputting the input signal to the PLL circuit, it is determined whether a digital signal or an analog signal has been input. Such a recording apparatus uses an SC signal to input digital signals.
When the MS prohibition code is included, it is possible to automatically switch to the recording of the analog system by making the determination as described above, thereby improving the operability. Further, according to this recording apparatus, when the SCMS prohibition code is not included in the input signal, a digital signal having better sound quality than an analog signal can be automatically selected.

As described above, the user may select an analog signal instead of a digital signal by operating the recording device 40 from the outside even when the digital signal is automatically selected as described above.

Further, as described above, this recording apparatus
Digital signals can be transmitted and received, and analog signals can also be transmitted and received.For example, if dubbing of digital signals is prohibited, character information can be dubbed with digital signals and information can be copied. The signal may be dubbed with an analog signal. Further, the recording apparatus may dub a digital signal as video information and dub as an analog signal as audio information.

Next, a recording apparatus having the above-described jack 20 and capable of dubbing a signal recorded on a recording medium accommodated in another recording apparatus to a recording medium accommodated therein will be described. I do. The recording device described below is a recording device on which a magneto-optical disk is mounted. However, the recording device is not limited to a magneto-optical disk, and any recording medium capable of recording and reproducing information signals can be used. Is also good.

As shown in FIG. 4, this recording device 40
When the signal input from the jack 20 is a digital signal, it is input to a D (digital) / A (analog) discriminating unit 41, a copy prohibition flag drawing unit 42, and a PLL discriminating unit 43. The D / A discriminating unit 41 includes a signal output from the identification mechanism 24 constituting the jack 20 and the photodetector 2 provided in the jack 20.
2 is input. The D / A discriminating unit 41 converts the signal input to the jack 20 into the logical operation unit 4
Enter 4 The digital optical signal input from the jack 20 is transmitted to the copy prohibition flag rendering unit 42. The copy prohibition flag rendering unit 42 extracts a copy prohibition flag from the input digital optical signal. The signal from the copy prohibition flag rendering unit 42 is input to the logical operation unit 44. The PLL determining unit 43
A digital optical signal input from the jack 20 is transmitted including an L circuit. This PLL determining unit 43
It is determined whether a flag is set in the transmitted optical signal. The signal output from the PLL determining unit 43 is supplied to a logical operation unit 44.

As described above, the recording device 40 includes the D / A discriminating unit 41, the copy prohibition flag drawing unit 42, and the PLL discriminating unit 4.
By providing 3, the logical operation unit 44 determines whether a digital signal or an analog signal has been input. The logical operation unit 44 switches the switch so that the switch circuit 45 is connected to the terminal b when it is determined that a digital signal is input, and is connected to the terminal a when it is determined that an analog signal is input. Output a signal. If the logical operation unit 44 determines that a digital signal has been input, the digital signal is output to the switch circuit 4.
5, and is input to the information signal compression / decompression circuit 46.

On the other hand, when it is determined that an analog signal has been input by the jack 20 or the logical operation unit 44, the switch circuit 45 is connected to the terminal a. The signal input from the jack 20 is connected to the resistor 47a,
The signal passes through 47b, is input to the volume control unit 48, and is input to the A / D conversion circuit 49. The signal input to the A / D conversion circuit 49 is converted from an analog signal to a digital signal, passed through the switch circuit 45, and input to the information signal compression / decompression circuit 46. Here, the signal input to the volume control unit 48 is a Mute control signal from the system controller (CPU) 50 as an FET.
It is controlled by inputting / outputting to / from the PC 51.

Next, the signal passed through the switch circuit 45 is input to the information signal compression / decompression circuit 46. Then, the information signal compression / decompression circuit 46 compresses the input signal and outputs it to the memory controller 52. The signal input to the memory controller 52 is once input to a random access memory (RAM) 53 and input to an error correction / correction unit 54 via the memory controller 52 in accordance with a signal from the CPU 50. The error correction / correction unit 54 is provided with a CIRC (Cross Interleaving).
An error correction system of the ve Reed Solomon Code (vehicle reed-solomon code) system is adopted, and a signal inputted by a modulation system called EFM (Eight to Fourteen Modulation) is encoded and decoded. The signal encoded by the error correction / correction unit 54 is input to a magnetic head driving unit 55,
On and off. The signal processed by the error correction / correction unit 54 is input to the CPU 50. Then, the signal input to the CPU 50 is input to the servo circuit 57.

The servo circuit 57 drives the spindle motor 58 in accordance with a signal input from the CPU 50 to drive the recording medium 59 to rotate at a predetermined rotation speed. The servo circuit 57 drives the optical head 61 to move in the radial direction of the recording medium 59 by driving the head feed mechanism 60, and drives the actuator to drive a predetermined track formed on the recording medium 59. The driving spot is displaced in the focusing direction and the tracking direction so that the beam spot of the light beam having a predetermined size is focused on and follows the beam spot. The optical head 61 focuses the light beam on the recording medium 59 via the objective lens 62 according to a signal from the CPU 50. Thus, the signal transmitted through the jack 20 is recorded on the recording medium 59.

On the other hand, when reproducing the information recorded on the recording medium 59 mounted on the recording device 40, the information is recorded on the signal recording area of the recording medium 59 via the objective lens 62 provided on the optical head 61. The return light beam irradiated and reflected from the recording medium 59 is detected by a detector such as a photodetector, and the detection signal is input to the RF amplifier 63 and amplified. The signal input to the RF amplifier 63 is
Address information and the like are input to the address decoder 64, and recording information is input to the error correction / correction unit 54. Error correction
The signal that has passed through the correction unit 54 is
, And is decoded by the information signal compression / decompression circuit 46 in accordance with a reproduction program or the like recorded in the RAM 53, and output through the D / A conversion circuit 65.

As described above, the recording device 40 configured as described above can transmit and / or receive not only information signals but also additional information such as character information. As a method of transmitting and receiving the additional information, input / output of a digital signal from the jack 20 is controlled, and a start-stop synchronous UART (Un
iversal Asyhahronous Receive Transmitter). The additional information such as character information may be transmitted and received by putting character information or the like on an empty bit (hereinafter referred to as a subcode) of a signal format of the digital audio interface. The recording device 40 converts the digital signal transmitted from the jack 20 into a main data / sub data separation circuit 6.
At 6, the data is separated into main data and sub data.

The transmission timing of these character information includes, for example, when the information signal is audio information, the title of the music is transmitted after the music composed of the information signal is switched. The transmission timing of the character information is not limited to the time of dubbing the information signal, and it is also possible to dub only the additional information such as the character information. By adding the additional information to the above-described subcode, even when the information signal is dubbed in a digital system, additional information such as character information can be transmitted and received. Therefore, even when the information signal has a flag for inhibiting dubbing, the recording apparatus 40 can dub only additional information such as character information in a digital manner. Then, the additional information such as the character information described above is supplied from the terminal C of the switch 45.

The transmission timing of the sub data separated by the main data / sub data separation circuit described above can be performed according to the following procedure.

If the sub-data is an album title or a song title for a song on the recording medium, the TOC (T
ableOf Contents) area.

Therefore, the reproducing apparatus first starts recording medium 5
Since the TOC area No. 9 is reproduced and then the normal program area is reproduced, at the start of dubbing, the switch circuit 45 is switched to the terminal c so that the sub-data is fetched into the memory of the recording apparatus, and then the switch circuit 45 is connected to the terminal Alternatively, control is performed so as to switch to the terminal b. The selection of the terminal a or the terminal b of the switch circuit 45 selects the terminal a when the digital dubbing prohibition flag is set, and selects the terminal b when the digital dubbing prohibition flag is not set.

A process for dubbing an information signal such as an audio signal recorded on a recording medium using the recording apparatus according to the present invention will be described with reference to a flowchart shown in FIG.

First, as a processing procedure, step S10
Whether the plug inserted into the jack 20 at 1 is the third plug 11 which is a digital-only plug, the second plug 10 which is an analog-only plug, or the first plug 2 which is a combined analog and digital plug It is determined whether or not a light signal is detected by the light detection unit 22 shown in FIG.

If no optical signal is detected in step S101, it is determined in step S113 that the second plug 10 is an analog-only plug, the step circuit 45 is switched to the terminal a, and analog dubbing is performed in step S114. Start.

If an optical signal is detected in step S101, the third plug 1
1 or a first plug 2 which is an analog and dual-purpose plug
And at least an optical signal is transmitted, so that P
The determination unit 43 determines whether or not the LL circuit 43 is locked (step S102).

When it is determined in step S102 that the PLL circuit 43 is not locked, the recording operation is stopped (step S115).

When it is determined in step S102 that the PLL circuit 43 is locked, the main data / sub-data separation circuit 66 shown in FIG. 4 demodulates the digital data and separates the main data from the sub-data ( Step S103). Since the sub data is supplied at least via the optical transmission line, the switch circuit 45 is switched to the terminal c in step 104, and the
Is stored in the RAM 53.

At the start of dubbing, for example, the TOC information read first on the playback device side is supplied as sub-data.
50 is stored in the internal memory.

Then, the presence or absence of a copy prohibition flag in the digital data supplied via the optical transmission path is determined in step S1.
Judge at 06. If it is determined in step S106 that there is no copy prohibition flag in the digital data, it is determined that the digital dubbing is for the first generation, the switch circuit 45 is switched to the terminal b, and the digital main data and sub data are optically transmitted. The digital dubbing is started by supplying via the road (step S108). Step S
If it is determined in step 106 that the digital data has a copy prohibition flag, it is determined that digital dubbing is performed for the second generation or more. In step S111, the switch circuit 45 is switched to the terminal a. A digital signal obtained by converting the signal once by the A / D conversion circuit 49 shown in FIG. 4 is recorded.

Then, it is determined in step S109 whether analog dubbing or digital dubbing has been completed. If it is determined that recording has been completed, in step S110, the data is stored in the RAM 53 or the memory inside the CPU 50 in advance. The sub data such as the character information is recorded in the TOC area which is a management area of the recording medium.

[0067]

As described above, the transmission cable according to the present invention is formed at the tip of the projection disposed at the center and outputs digital signals, and is disposed on the side of the hole to output analog signals. Since it has a plug having a terminal portion, a digital signal transmission line for transmitting a digital signal output from the hole portion, and an analog signal transmission line for transmitting an analog signal output from the terminal portion, an analog signal is transmitted. In addition to transmitting digital signals, the user does not need to replace the transmission cable when dubbing an information signal recorded on a recording medium in an analog system or in a digital system. The operability of signal dubbing can be significantly improved.

The jack according to the present invention comprises a first plug for outputting analog signals and digital signals, a second plug for outputting only analog signals, and a third plug for outputting only digital signals. An analog signal input section selectively connected and receiving an analog signal,
A digital signal input unit to which a digital signal output from the first plug is input, and identification means for identifying whether any one of the first plug, the second plug, and the third plug is inserted. Therefore, the analog signal can be input and the digital signal can also be input. By using the transmission cable having the first plug that outputs the digital signal and the analog signal, when dubbing in the analog system, In the case of digital dubbing, the user does not need to replace the transmission cable, and the operability of dubbing information signals can be significantly improved.

The recording apparatus according to the present invention comprises a first plug for outputting a digital signal and an analog signal, a second plug for outputting only an analog signal, and a third plug for outputting only a digital signal. Has a jack to be selectively connected, an analog signal input section to which the analog signal output from the first plug or the second plug is input, and the digital signal output from the first plug And a discriminating means for discriminating whether the first plug or the second plug is connected, so that an analog signal can be transmitted and received and a digital signal can be transmitted and received. By using a transmission cable having a first plug for outputting digital and analog signals. It is not necessary that the user replace the transmission cable even in the case of dubbing digitally even in the case of dubbing the log method, it is possible to significantly improve the dubbing operation of the information signal.

[Brief description of the drawings]

FIG. 1 is a side view showing a transmission cable for both analog and digital output according to the present invention.

FIG. 2 is a diagram showing three types of plugs used in the present invention and an identification structure.

FIG. 3 is a sectional view showing a jack according to the present invention.

FIG. 4 is a block diagram showing a recording apparatus according to the present invention.

FIG. 5 is a flowchart showing a processing procedure inside the recording apparatus when dubbing an information signal recorded on a recording medium using recording and reproduction according to the present invention.

[Explanation of symbols]

1 transmission cable, 2 first plug, 3 hole,
5a digital signal transmission line, 5b analog signal transmission line, 10 second plug, 11 third plug, 20 jack, 22 photodetector,
24 identification mechanism, 40 recording device, 41 D / A discriminating section, 42 copy prohibition flag drawing section, 43 PLL discriminating section, 44 logic operation section, 50 system controller (CPU), 53 RAM.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01R 17/04 510 H01R 17/04 510F

Claims (10)

[Claims] A plug formed at the tip of a projection disposed at the center for inputting / outputting a digital signal, and a terminal disposed on a side surface of the hole for inputting / outputting an analog signal; A digital signal transmission line for transmitting the digital signal output from the unit; and an analog signal transmission line for transmitting the analog signal output from the terminal unit, wherein the digital signal line and the analog signal line are connected to one another. A transmission cable characterized by a book. 2. The transmission cable according to claim 1, wherein said digital signal is an optical signal. 3. A first plug having a hole formed at the tip of a centrally arranged projection for outputting a digital signal, and a terminal arranged on a side surface of the hole for inputting and outputting an analog signal, A second plug having substantially the same shape as the first plug and having terminals arranged on the side surfaces of the protrusions for inputting / outputting an analog signal; A jack selectively connected to a third plug for inputting / outputting an analog signal; an analog signal input / output section for receiving the analog signal; and a digital signal for receiving a digital signal output from the first plug. A jack comprising: an input / output unit; and identification means for identifying whether any of the first plug, the second plug, and the third plug is inserted. 4. The jack according to claim 3, wherein said digital signal is an optical signal, and said digital signal input section is a photodetector for detecting an optical signal. 5. A first plug having a hole formed at the tip of a centrally disposed projection for inputting and outputting digital signals and a terminal disposed on a side surface of the hole for inputting and outputting analog signals. A second plug having substantially the same shape as the first plug and having terminals arranged on side surfaces of the protrusion, for inputting and outputting an analog signal, and a hole provided at a tip of the protrusion. And a third plug for selectively inputting / outputting a digital signal from / to an analog signal input / output for receiving the analog signal output from the first plug or the second plug. Unit, a digital signal input / output unit to which the digital signal output from the first plug is input, and identification means for identifying whether the first plug or the second plug is connected And the above identification Recording means for converting a signal input according to the result of identification of a step into a recording signal for recording on a recording medium; and recording means for recording the recording signal converted by the conversion means on the recording medium. apparatus. 6. The conversion means converts an output signal from the digital signal input part into a recording signal when the identification means determines that the first plug is connected. The recording device according to claim 5. 7. Extraction means for extracting a prohibition signal for prohibiting copying of the digital signal input to the digital signal input unit, and prohibition of copying of the digital signal in accordance with the prohibition signal extracted by the extraction means. 6. The recording apparatus according to claim 5, further comprising: means; and control means for controlling the recording means so as to copy an analog signal according to the inhibition signal extracted by the extraction means. 8. The signal input from the first plug, wherein the digital signal includes character information, and the analog signal includes audio information.
The recording device according to any one of the preceding claims. 9. The signal input from the first plug, wherein the digital signal includes video information, and the analog signal includes audio information.
The recording device according to any one of the preceding claims. 10. The recording apparatus according to claim 7, wherein said digital signal includes management information for managing copying of the signal.