JP2557243Y2 - Tape recorder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape recorder for recording in the form of an analog audio signal.

[0002]

2. Description of the Related Art FIG. 2 shows an audio apparatus including a CD player 1, a cassette deck 8, an output amplifier 5, and a speaker 12. A digital audio signal reproduced by the CD player 1 is converted into an analog signal by a D / A converter 2 and is output to an analog output terminal 3. Reference numeral 4 denotes a digital output terminal.
A digital audio signal reproduced by the D player 1 is derived.

An analog audio signal obtained at an analog output terminal 3 of the CD player 1 is supplied to a speaker 12 via an output amplifier 5.

An analog audio signal obtained at an analog output terminal 3 of the CD player 1 is supplied to a recording unit 13 via a CD input terminal 9 of a cassette deck 8 and recorded on a magnetic tape.

The external output terminal 6 of the output amplifier 5 is connected to the external input terminal 10 of the cassette deck 8, and an analog audio signal output from the output terminal 6 is recorded in response to switching (switching means is not shown). The data is supplied to the recording unit 13 and can be recorded on a magnetic tape. The external output terminal 11 of the cassette deck 8 is connected to the external input terminal 7 of the output amplifier 5 so that a reproduced audio signal output from the output terminal 11 in response to switching can be supplied to the speaker 12 via the output amplifier 5. Has been.

[0006]

According to the above arrangement, the analog audio signal output to the analog output terminal 3 of the CD player 1
The data is supplied to the D input terminal 9 and recorded. That is, since the signal is transmitted in the analog signal format, noise is easily picked up on the way, and the recording sound quality in the recording unit 13 may be deteriorated.

Therefore, the present invention is to provide a tape recorder which can always record with good sound quality.

[0008]

SUMMARY OF THE INVENTION The present invention provides a D / A converter, a digital input terminal connected to the input side of the D / A converter, a recording unit for recording in the form of an analog audio signal, and a recording unit. An analog input terminal connected to the input side of the recording section, and a connection switch inserted between the output side of the D / A converter and the input side of the recording section;
When the connection switch is turned on, the output signal of the D / A converter is supplied to the recording unit and the analog input terminal.

[0009]

When the connection switch is turned on, an analog audio signal output from the D / A converter is supplied to the recording unit in accordance with the digital audio signal supplied to the digital input terminal. Therefore, in the case of an audio device having a digital output terminal such as a CD player, the audio device can transmit and record an audio signal in a digital signal format. In this case, noise due to unnecessary radiation or the like is unlikely to enter during transmission, and deterioration of recording sound quality is prevented. Also,
At this time, the analog audio signal output from the D / A converter 22 is supplied to the analog input terminal 9.
Therefore, the analog input terminal 9 is connected to the D / A converter 2
2 functions as an analog output terminal for leading out an analog audio signal output from 2. This gives D
Deriving the output signal of the / A converter 22 to the outside can be achieved without providing a dedicated terminal. By turning off the connection switch 23, the D / A converter 22 is disconnected, and only the analog audio signal supplied to the analog input terminal 9 is supplied to the recording unit 13. In the case of an audio device having no digital output terminal, an audio signal can be transmitted from the audio device in the form of an analog signal and recorded.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In FIG. 1, portions corresponding to those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted.
In this example, a digital input terminal 21 is provided on the cassette deck 8 and a D / A converter 22 is built in. The digital input terminal 21 is connected to the input side of the D / A converter 22, and the output side of the D / A converter 22 is connected to the recording unit 13 via the switch 23 and to the CD input terminal 9.

The digital output terminal 4 of the CD player 1 is connected to the digital input terminal 21 of the cassette deck 8. Also, the CD input terminal 9 of the cassette deck 8
Only the output amplifier 5 is connected, and the analog output terminal 3 of the CD player 1 is not connected to the output amplifier 5.

Next, the operation of this embodiment will be described. CD
A digital audio signal (optical signal) obtained at a digital output terminal 4 of the player 1 is supplied to a D / A converter 22 via a digital input terminal 21 of the cassette deck 8, and is converted into an analog signal. When the switch 23 is turned on, the analog audio signal output from the D / A converter 22
It is supplied to the D input terminal 9. Therefore, the recording unit 13 records the analog audio signal on a magnetic tape. The analog audio signal supplied to the CD input terminal 9 is supplied to the speaker 12 via the output amplifier 5, and the speaker 12 outputs a corresponding sound.

As described above, in this embodiment, the digital audio signal output from the digital output terminal 4 of the CD player 1 can be supplied to the cassette deck 8 for recording, and the audio signal can be transmitted to the cassette deck 8 in the form of a digital signal. Therefore, noise hardly enters on the way, and the recording unit 13
Then you can always record with good sound quality. Further, since the same analog audio signal as that recorded by the recording unit 13 of the cassette deck 8 is supplied to the speaker 12 via the output amplifier 5, there is an advantage that the recorded audio itself can be monitored.

In the above-described embodiment, the digital audio signal output from the CD player 1 is transferred to the cassette deck 8.
However, the same configuration can be applied to the case of recording an audio signal from an audio device that outputs a digital audio signal such as a satellite broadcast tuner.

Although not described in detail, the conventional circuit system and the circuit system of the present invention may be selectively switched and used in conjunction with the switch 23.

[0016]

According to the present invention, when the connection switch is turned on, a digital audio signal can be supplied to the digital input terminal and analog recording can be performed. It can transmit signals and record analog,
Noise due to unnecessary radiation is less likely to enter during transmission,
Deterioration of recording sound quality can be prevented. At this time, since the analog input terminal functions as an analog output terminal, there is an advantage that the output signal of the D / A converter can be derived to the outside without providing a dedicated terminal. Further, when the connection switch is turned off, an analog audio signal can be supplied to an analog input terminal and analog recording can be performed. Therefore, an audio signal having an analog signal format can be transmitted from an audio device having no digital output terminal and recorded.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a conventional example.

[Explanation of symbols]

 Reference Signs List 1 CD player 4 Digital output terminal 5 Output amplifier 8 Cassette deck 9 CD input terminal 12 Speaker 13 Recorder 21 Digital input terminal 22 D / A converter

Claims (1)

(57) [Scope of request for utility model registration] 1. A D / A converter, a digital input terminal connected to the input side of the D / A converter, a recording unit for recording in the form of an analog audio signal, and a recording unit connected to the input side of the recording unit An analog input terminal; and a connection switch inserted between an output side of the D / A converter and an input side of the recording unit. When the connection switch is turned on, an output signal of the D / A converter is provided. Is supplied to the recording section and the analog input terminal.