JPH01199347A - Method for skipping blank - Google Patents

Abstract

PURPOSE:To prevent omitting the head of a melody by skipping a blank when a recorded part is not detected even when a set time passes after a tape reproduction is started. CONSTITUTION:As the set time for a blank skip, two kinds of times TB and TA (>TB) are set, and when a soundless part over the prescribed time TB is detected by a recording condition detecting part 13 at the time of an ordinary tape reproducing, a control microcomputer 15 executes the quick traverse of a tape by a tape traveling control part 16, and when the recorded part is detected or when a tape end is detected by a tape end detecting part 14, the tape reproduction is started again. A soundless continuous time for starting the blank skip only after the tape end detection is made into the TA', the tape end is detected, the tape reproduction is started, and when the recorded part is not detected after the set time TA passes, the blank skip is executed. Thus, in the reproduction after the tape end detection, the omission of the head of a first melody cannot be generated.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a blank skip method for a tape player, and particularly to a blank skip method after a tape end is detected by blank skip.

<Prior art> By turning on the blank skip key, when a silent part of a predetermined time TB or more is detected during tape playback, the tape is fast forwarded, and when such a recorded part or the end of the tape is detected, the tape is played back again. There is a blank skip method that starts and then similarly skips silent parts (blank parts).

FIG. 4 is an explanatory diagram of such a blank skip method,
Music M1 and M2 are recorded on side A, and music M3. M4°MS, . . . is recorded (see Figure 4 (a)).

When the A side of the tape is played back and the playback of music M2 is finished, a silent part appears and the silent part becomes T.

If the above continues, the tape will be run in fast forward from the TBB overpoint pl (see Figure 4 (b)) (blank skip).
, reaching the tape end. Note that T is set to about 15 seconds, and there are almost no cases where the next song is recorded after leaving a blank of 15 seconds or more, so in most cases no music is recorded at the end of the tape, but by chance If a recorded portion is detected before reaching the tape end, tape playback is resumed from the detected position.

Now, when the end of the tape is reached, the tape is automatically reversed and playback of side B begins. However, since no music is recorded within an hour from the beginning of the tape, a silent portion is detected, and time is counted to start blank skipping. If the silent portion does not continue for the time TB or more (T, >T), the first music M3 on side B starts playing without skipping.

<Problems to be Solved by the Invention> By the way, it is not possible to record in the tape reader section, a considerable amount of time passes from the time the needle is placed on the record until the sound is produced, and for other reasons, the beginning of the tape cannot be recorded. There are many cases where there is a silent part for a time T longer than the set time TB (
(See Figure 5).

In such a case, the silent time T after auto-reverse exceeds the set time T, and the elapsed position P.

Blank skipping is performed until the first song M3 is detected. However, since the beginning position of the first song M3 is detected in a fast-forward state, it cannot be stopped instantaneously at the detected position, resulting in overshooting, and playback starts from point P, causing the beginning of the song to be cut off.

In light of the above, an object of the present invention is to provide a blank skip method that does not cause the beginning of the first song to be cut off during playback after detecting the tape end by blank skip.

Means for Solving the Problems> FIG. 1 is a block diagram of main parts of a tape player according to the present invention.

13 is a recording state detection section, 14 is a tape end detection section, 1
5 is a control microcomputer, 16 tape travel control section, P
LY is a playback key, and BSK is a blank skip key.

Effect〉 T, as the set time for blank skipping.

Two types of TA (>T, ) are set, and during normal tape playback, a silent part of a predetermined time T6 or more is detected by the recording state detection unit 1.
3, the control microcomputer 15 causes the tape running control section 16 to fast-forward the tape, and when the recording section is detected or the tape end is detected by the tape end detection section 14, the control microcomputer 15 causes the tape running control section 16 to fast-forward the tape. Start tape playback again.

Then, only after the tape end is detected, the silent duration time to start blank skip is set as TA, the tape end is detected and tape playback is started, and if no recorded part is detected even after the set time TA, blank skip is performed. do.

<Embodiment> FIG. 1 is a block diagram of the main parts of a tape player according to the present invention.

11 is a magnetic head for recording and reproducing, 12 is a playback amplifier, and 13 is a recording state detection unit, which receives the signal As read from the tape TP by the head 11, detects silent parts and recorded parts, and generates a signal MON. do. Note that the signal MON becomes high level when a recorded portion is detected, and becomes low level when a silent portion is detected.

14 is a tape end detection unit that detects the tape end;
5 is a control microcomputer, which has two types of setting times T, TA (>T,) for blank skipping, and a built-in timer TMR (actually a soft timer). Furthermore, T.

is set to 15 seconds, and TA is set to 30 seconds, for example.

Reference numeral 16 denotes a tape running control section that controls the running speed and direction of the tape, 17 a tape running mechanism section, and 18 an operation panel.

The operation panel 18 is provided with various keys and display sections, and a playback key FLY and a blank skip key BSK are shown as keys related to the present invention.

FIG. 2 is a processing flowchart of the blank skip method according to the present invention. The overall operation of FIG. 1 will be explained below according to this flowchart.

During playback, if you operate the blank skip key BSK to turn blank skip on, the control microcomputer 15
refers to the signal MON to check whether a silent portion is being detected (step 101).

If no silent part is detected, continue playback and proceed to step 10.
1 (step 102).

On the other hand, if a silent portion is being detected in step 101, the silent duration time T is measured (step 103), and it is determined whether the first set time T is exceeded, or in other words, T > T.
If T is not exceeded, playback is continued and the process returns to step 101.

If the silent time continues and T>T, the control microcomputer 15 causes the tape running control section 16 to fast-forward the tape (blank skip step 105).

Since the recording state detection unit 13 detects the recording state even during blank skipping, the control microcomputer 15
refers to the signal MON to check whether a recorded portion has been detected (step 106); if detected, playback is started after stopping and the process returns to step 101 (step 107). still,
Since the stop position is a little too far from the beginning of the music, it is possible, for example, to return at the review speed until a silent portion is detected, then reverse and start playing the music at the playback speed.

On the other hand, if no recorded portion is detected in step 106, then a check is made to see if the end of one side (tape end) has been reached (step 108); if the tape end has not been reached, blank skipping from step 105 onwards is continued.

When the end of the tape is reached, playback is started in auto-reverse mode, and since no music is recorded at the beginning of the tape, the control microcomputer 15 immediately starts counting time for blank skipping (step 109).
).

Thereafter, it is checked whether the measured time T exceeds the second set time TA, in other words, it is checked whether T>TA, and if it does not, the playback is continued.Step 111) Set the set time T
, and returns to the normal blank skip detection state.

(Step 101) If T>TA, blank skip is performed by the processing from step 105 onwards.

In addition, at the beginning of the tape, the first set time 'r, (=1s second)
Even if there is a silent part as described above, a silent part longer than the second set time TA (for example, 30 seconds) will not exist unless there is a special case, and in most cases, blank skipping will not be performed and the blank part will not be present after the tape end is detected. The song never goes out of style.

In the above, by switching the silent duration time for starting a blank skip after detecting the tape end from T6 to TA, the configuration is configured to prevent the beginning of the first song after detecting the tape end. As shown in the flowchart (see dotted line), blank skip is temporarily disabled upon tape end detection (step 201), and then automatic reversal of the tape running direction and playback are started (step 202.2).
03), then check whether the first music has been played step 204), and restore the blank skip function after the first music has started playing (step 205).
) can also be configured.

In FIG. 3, the same steps as in FIG. 2 are indicated by the same reference numerals.

<Effects of the Invention> According to the present invention, a first set time T and a second set time TA, which is larger than the first set time T, are set in advance for blank skipping.

is used to skip the blank when the silent time exceeds T, and only when the end of the tape is detected, the second set time TA, which is a long time, is used, and after the start of reverse playback TA
Since the configuration is configured to perform a blank skip only when the second set time is exceeded, the first song will most likely start playing within the second set time, so there is no chance that a blank skip will occur and the beginning of the song will be cut off. do not have.

Further, according to the present invention, when the end of the tape is detected, auto-reverse is performed to start tape playback, and the blank skip function is stopped until the first song is played after the start of tape playback. Since the first song is played without any blank skipping, the beginning of the song will not be cut off.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of main parts of a tape player according to the present invention, FIGS. 2 and 3 are flowcharts of the first and second processes according to the present invention, FIG. 4 is an explanatory diagram of blank skip, and FIG. The figure is an explanatory diagram of conventional problems. TB3...Recording status detection unit, 14...Tape end detection unit, 15...Control microcomputer, 16...Tape running control details, FLY...Playback key, BSK...Blank skip key

Claims (2)

[Claims] (1) In a blank skip method in a tape player, in which the tape is fast-forwarded when a silent part of a predetermined time T_B or more is detected during tape playback, and tape playback is started again when a recorded part or the end of the tape is detected, A set time T_A larger than T_B is set in advance, and when the end of the tape is detected, auto-reverse is performed to start tape playback, and the set time T_A is set after the start of tape playback.
A blank skip method characterized in that if a recorded part is not detected even after exceeding _A, a blank skip is performed. (2) In the blank skip method in a tape player, in which the tape is fast-forwarded when a silent part of a predetermined time T_B or more is detected during tape playback, and tape playback is started again when a recorded part or the end of the tape is detected. A blank skip method characterized in that when detected, auto-reverse is performed to start tape playback, and the blank skip function is stopped after tape playback starts until a recorded part is detected.