JPH087563Y2 - Tape recorder - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention has a function of recording a plurality of songs recorded on a CD (compact disc) onto a magnetic tape so that there is no gap between the songs. The present invention relates to a tape recorder.

[Conventional technology]

A tape recorder has been proposed that has a convenient function for recording the end of the preceding song and the head of the following song in an overlapping manner like disco music.

FIG. 3 is a functional block diagram of such a tape recorder. In the figure, 1 is an input terminal of a recording command signal,
2 is a recording means. Reference numeral 3 denotes a pause signal input terminal. When the pause signal is input, the pause means 7 enters a recording standby pause state through the fade-out means 4, the stopping means 5, and the reverse running means 6. Reference numeral 8 is an input terminal for a pause release signal. When the pause release signal is input, the pause release means 9 and the fade-in means 10 operate to start recording the next music piece.

When a recording command signal is input to the input terminal 1, the recording means 2 operates and the tape recorder starts recording.
Record the first song played from. When a pause signal is input to the input terminal 3 at the end of the first tune, the recorded signal is gradually attenuated by the fade-out means 4 and then becomes a non-recording state, and the stopping means 5 stops the running of the magnetic tape. After stopping the running, the magnetic tape runs backward by the reverse running means 6 and stops the reverse running after a predetermined time. Next, when the second music of the CD is reproduced and a pause release signal is inputted to the input terminal 8 at the head, the pause releasing means 9 releases the pause state and the recording of the second music of the CD is started. At this time, since the fade-in means 10 performs the fade-in, the recording signal of the second tune is recorded while gradually increasing its level. Therefore, the end portion of the first music piece is faded out and recorded, and the second music piece that is faded in is recorded in duplicate.

[Problems to be solved by the device]

The tape recorder has an erasing head so that a signal already recorded on the magnetic tape can be erased and a new signal can be recorded, and an erasing current is supplied to the erasing head. Further, the recording head is supplied with a prescribed bias current suitable for a magnetic tape so that recording can be performed without distortion. Both the erasing head and the recording head are not in contact with the magnetic tape during the reverse running period by the reverse running means, so there is no problem, but in the repeated recording period when both heads contact the magnetic tape, there is no distortion and good audible recording is made. In addition, means for properly controlling the erase current and the recording bias current must be provided. That is, the erase current must be controlled so as not to erase the end of the previously recorded previous song.
Also, by adding the recording bias of the following song to the recording magnetization state of the previous song, which was recorded with the specified recording bias current, so as not to cause high frequency attenuation, and also to prevent distortion in the recording of the following song. The recording bias current must be controlled. An object of the present invention is to provide a tape recorder having the above-mentioned current control means.

[Means for solving the problem]

When the pause signal is given, the tape recorder of the present invention stops the running of the magnetic tape after fading out the recorded signal, and automatically runs the magnetic tape in the reverse direction for a predetermined time to put it into the pause state, and then the next pause. The tape recorder is adapted to start recording of a subsequent piece of music in response to a release signal so as to record the end of the preceding piece of music and the head of the following piece of music in an overlapping manner, and has the following means.

The erase current control means attenuates or blocks the erase current supplied to the erase head during the overdubbing period. The recording bias current control means gradually increases the recording bias current during the overdubbing period.

[Action]

The erasing current control means prevents erasing the previous song recorded in the overdubbing portion. The recording bias current control means controls the recording bias current to gradually increase so as to reduce the influence on the recording magnetization state of the preceding song when recording the succeeding song. By doing so, the preceding song and the succeeding song recorded in the over-recorded portion are smoothly perceived continuously.

〔Example〕

An embodiment will be described below with reference to FIGS. 1 and 2.

In FIG. 1, 11 is an input terminal for a pause release signal to which a pause release signal is input, 12 is an erase current control means, 13 is a recording bias current control means, and 14 is a timer means. FIG. 2 (a) is a diagram showing a state of overlapping recording of the previous song and the subsequent song, FIG. 2 (b) is a state diagram of the erase current, and FIG. 2 (c) is a state diagram of the recording bias current.

In FIG. 2 (a), the erasing head and the recording head are at the point Q when the previous song is faded out and recorded and the magnetic tape stops running. Actually, the erasing head and the recording head are arranged with a slight distance, but the difference in distance is neglected because the time difference for one point on the magnetic tape to pass through both heads is short. The magnetic tape travels in the reverse direction and both heads move from point Q to point P. During this reverse running period, both the erasing head and the recording head are separated from the magnetic tape. Therefore, it does not disturb the recording condition of the previously recorded song. Both heads come into contact with the magnetic tape when the reverse running is stopped and the pause state is reached. Next, when a pause release signal is given to record a subsequent song, the magnetic tape starts to run in the forward direction. Since this pause release signal is also applied to the input terminal 11 of the pause release signal of FIG. 1, the erase current control means 12 shuts off the erase current supplied to the erase head. The timer means 14 produces an output after the time required for the head to move from the P point to the Q point, and gives the output to the erase current control means 12. The erase current control means 12 receives this output and cancels the cutoff of the erase current. This is shown in FIG. 2 (b). The recording bias current control means 13 reduces the recording bias current supplied to the recording head to an appropriate value when the pause release signal is given, and thereafter gradually increases it until the recording head reaches point Q. This state is shown in FIG. 2 (c).

As described above, during the overlap recording period, the erasing current control means 12 prevents the recording of the previous song from being erased, and the recording current bias control means 13 sets the biased recording magnetization state of the previous song when recording the subsequent song. Try to reduce the influence of the recording bias of the song.

[Effect of device]

As described above, since the subsequent song is over-recorded with less influence on the recording magnetization state of the previous song, during playback, the sound level of the subsequent song gradually increases and the previous song gradually deteriorates without sound quality deterioration. It becomes smaller and you can get a pleasant listening feeling.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIGS. 2 (a) to 2 (c) are operation explanatory diagrams for explaining the operation, and FIG. 3 is a function useful for overwriting in a tape recorder. It is a functional block diagram. 11 ... Pause release signal input terminal, 12 ... Erase current control means, 13 ... Recording bias current control means, 14 ... Timer means.

Claims (1)

[Scope of utility model registration request] 1. When a plurality of pieces of music are recorded on a magnetic tape, after the front music is faded out by a pause signal and the running of the magnetic tape is stopped in order to record the end of the front music and the head of the rear music in an overlapping manner , In a tape recorder having a function of automatically running the magnetic tape in a reverse direction for a predetermined time to stop it, and fading in the succeeding music by a pause release signal to record again,
Timer means for producing an output after a lapse of a predetermined time in response to the pause release signal, erase current control means for attenuating the erase current by the pause release signal and releasing the attenuation by the output of the timer means, and recording by the pause release signal A tape recorder, comprising: a recording bias current control means for decreasing the bias current to an appropriate value and then gradually increasing it.