JP2001035063A - Reproducing device provided with resume function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproducing device provided with resume function capable of performing the resume reproduction from the position corresponding to the track position of the interrupted time point (resume point) and the resume reproduction from the top part of the reproducing track by automatically selecting them in accordance with the interrupting state of the reproduction. SOLUTION: A CD reproducing part 2, an operation key 3, a resume switch 4 and a time detecting part 5 are connected to a microcomputer 1. The time detecting part 5 is prepared for detecting the elapsed time from the top position of the track at the track position of the interrupted time point (resume point), and a 'control part' is constituted for controlling so as to restart the reproduction from the track position of the interrupted time point when the detected time is longer than the prescribed time, and also so as to restart the reproduction from the top position of the track when the detected time is shorter than the prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting a track position at the time of interruption when reproduction is interrupted during reproduction of an information reproducing medium having a plurality of tracks on which information such as images and sounds are recorded. The present invention relates to an improvement of a playback device with a resume function capable of performing playback from a position corresponding to the track position at the time of interruption when playback is resumed.

[0002]

2. Description of the Related Art Generally, an information reproducing medium including an optical disk such as a CD or an MD, a magnetic tape such as an audio cassette tape or a video cassette tape, or a medium such as a smart media or a compact flash memory is reproduced during reproduction. When the reproduction is temporarily interrupted by operating the pause instruction key and then the reproduction is to be resumed, the reproduction mode is set to the standby state where the current reproduction position is held, and the reproduction start instruction key is operated again. That is awaited.

[0003] Such a pause state is not particularly problematic when a restart of reproduction is instructed after a short time of about several seconds or several tens of seconds, but when a long time of several minutes or more occurs. This means that an excessive load is imposed on the reproduction medium, and in particular, when the reproduction medium is a magnetic tape, the magnetic layer is worn or the tape is deformed. And the battery life is shortened.

In order to prevent such inconveniences, that is, inconveniences caused by temporarily stopping the reproduction, the reproduction stop command key is operated to completely stop the reproduction, or the power switch is turned off. In this case, the playback unit is reset and returned to the initial position (to the head of the first track position). Therefore, when the reproduction start is resumed, reproduction from the interrupted position cannot be performed.

Therefore, when the reproduction is interrupted during the reproduction of the information reproducing medium, the track position at the time of interruption is detected and stored, and when the reproduction is resumed, the position corresponding to the track position at the interruption time is detected. There is a reproducing apparatus having a resume function capable of reproducing an image.

According to such a reproducing apparatus with a resume function, as shown in FIG. 4, reproduction is interrupted at resume points a, b, c, and d during reproduction of a recorded track formed by tracks 1 to 6. In such a case, the position is stored in the memory, and the reproduction from the position is performed when the resumption of the reproduction is instructed by the operation key or the like. The symbol te shown in FIG. 4 represents the elapsed time from the beginning of the track 4 to the resume point d. Next, the detailed operation of such a resume function will be described in the case of a playback apparatus whose playback medium is a CD. Will be described with reference to the flowchart shown in FIG.

That is, when the reproduction of the CD is started, the data of the track recorded on the disk is read in step S8, converted into audio data by an appropriate reproduction circuit, and the audio reproduction is started.

Thereafter, when the reproduction is stopped in step S9 by operating the stop key, the track position (resume point) at the time of interruption is detected in the next step S10 and stored in the memory. When a command to restart the reproduction is issued, the reproduction is started in step S11,
In the next step S12, reproduction from the position corresponding to the interruption point track position (resume point) data already recorded in step S10 is resumed.

After step S12, step S13 is executed, and it is determined whether or not it is necessary to skip (skip to the beginning of the track being reproduced: cueing) the audio whose reproduction has been started (restarted reproduction). If skip is not required (No), the process is terminated,
If skip is required (Yes), step S
At 14, the operation is terminated after skip driving to the beginning of the currently reproduced track is performed.

[0010]

In a conventional reproducing apparatus with a resume function, when reproduction from a resume point is sufficient, continuous reproduction is performed as it is, and reproduction from the beginning of a track including the resume point is required. In such a case, playback is performed from the beginning of the track.

[0011] Therefore, if the reproduction is to be resumed from the resume point, no particular problem occurs. However, when the elapsed time te (see FIG. 4) from the beginning of the track is short, the above-mentioned case is almost always satisfied. Since such skip drive is required, the operation must be performed from the beginning of the track including the resume point by operating the operation key for the skip command, which complicates the operation. There is.

The above-described determination as to whether or not to perform the skip drive is performed by the user who plays back from the resume point and listens to the sound or sees the image. Since it is necessary to force the user to perform an operation unrelated to reproduction, an improvement is desired.

Accordingly, an object of the present invention is to automatically select resume playback from a position corresponding to a track position (resume point) at the time of interruption and resume playback from the beginning of the playback track in accordance with the playback interruption status. It is an object of the present invention to provide a playback device with a resume function that can be performed.

[0014]

In order to solve the above problems, the present invention employs the following characteristic configuration.

(1) When reproduction is interrupted during reproduction of an information reproducing medium having a plurality of tracks on which information such as images and sounds are recorded, the position of the track at the time of the interruption is detected and stored. In a reproducing apparatus with a resume function capable of performing reproduction from a position corresponding to the interruption point track position when the operation is resumed, a time detection unit for detecting an elapsed time from the head position of the track at the interruption point track position When the time detected by the time detecting unit is longer than a predetermined time, control is performed so that reproduction from the track position at the interruption point can be resumed, and when the detected time is shorter than the predetermined time, the interruption A control unit that controls so that reproduction from the head position of the track including the point-in-time track position can be resumed.

(2) When playback is interrupted during playback of an information playback medium having a plurality of tracks on which information such as images and sounds are recorded, the track position at the time of interruption is detected and stored, and playback is performed. In a reproducing apparatus with a resume function capable of performing reproduction from a position corresponding to the interruption point track position when the operation is resumed, a time detection unit for detecting an elapsed time from the head position of the track at the interruption point track position When the time detected by the time detecting unit is longer than a predetermined time, control is performed so that reproduction from the track position at the interruption point can be resumed, and when the detected time is shorter than the predetermined time, the interruption A control unit for controlling reproduction from the head position of the track including the current track position so that reproduction can be resumed; A first resume mode for executing a resume function by a time detection unit and the control unit; and when the reproduction is resumed, the reproduction is performed from the interrupted track position regardless of the time detection result by the time detection unit. And a mode selection unit capable of performing a resume operation by selecting the obtained second resume mode.

(3) The time detection unit of (1) or (2) is configured to operate the operation key for starting reproduction from the beginning of one of the plurality of tracks, and then to reproduce the reproduction of the track. The time until the operation key for stopping the operation is operated can be set as the elapsed time.

(4) The control unit according to any one of (1) to (3) is configured to manually set the predetermined time.

(5) The information reproducing medium of any of the above (1) to (4) is an optical disk such as a CD or MD, a magnetic tape such as an audio cassette tape or a video cassette tape, a smart media or a compact flash memory. It consists of medium.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A reproducing apparatus with a resume function according to an embodiment of the present invention will be described below with reference to FIGS. This embodiment is an example in which the present invention is applied to a CD player. First, a schematic circuit configuration of the present embodiment will be described with reference to FIG.

In FIG. 1, a microcomputer 1
Is used to control the entire playback apparatus with a resume function in a complex manner.
, The resume switch 4 and the time detection unit 5 are connected. The CD reproducing unit 2 converts a signal read from an information track recorded on the CD using an optical pickup into a predetermined audio output, and converts the data of the current reproducing position of the CD into resume point data. And a function to receive the data of the reproduction restart position transmitted from the microcomputer 1 as the reproduction restart position designation data.

The operation keys 3 include a plurality of operation keys for instructing a reproducing operation in the CD reproducing section 2, and a reproducing key 3a for giving an instruction for starting reproduction of a CD;
And a stop key 3b for giving a command to stop the CD being reproduced. The resume switch 4 is used to select whether or not the playback device having the resume function has the resume function.

The time detecting section 5 detects the elapsed time from the head position of the track at the track position (resume point) at the time of interruption.
If the time detected by is longer than the predetermined time,
When the detected time is shorter than the predetermined time, control is performed so that reproduction can be resumed from the head position of the track including the interruption time track position. Control unit
Are mainly constituted by the microcomputer 1.

The operation of the playback apparatus having the resume function according to the present embodiment configured as described above will be described with reference to the flowchart shown in FIG. That is, when the microcomputer 1 detects that the reproduction key 3a of the operation key 3 has been pressed, the microcomputer 1 instructs the CD reproduction unit 2 to perform CD rotation control, tracking control, and focus control.
An optical read signal of the CD is obtained (step S1), and an appropriate signal processing is performed on the signal to obtain an audio output and start audio reproduction.

After that, when the microcomputer 1 detects that the stop key 3b has been pressed in step S2, the track position (resume point) at the time of interruption is detected in the next step S3, and the data is stored in the memory. After that, when the reproduction restart is instructed by pressing the reproduction key 3a, the reproduction is started in step S4, and in the next step S5, "the point at which the reproduction is stopped is within a certain time from the beginning of the track". Is determined.

That is, as schematically shown in FIG. 3, the (i-1) th music track T (i-1) which continues before the i-th music track Ti, and continues after the music track Ti ( When the music track formed by the (i + 1) th music track T (i + 1) is reproduced, the elapsed time from the reproduction start time of the music track Ti to the reproduction interruption time is t1, t2,
At t3, it is determined whether these times are greater than or less than a predetermined time t from the reproduction start time, and when the time detected by the time detection unit 5 is longer than the predetermined time t (t1, t2, t3). In), the reproduction from the track position at the interruption point is ended after the reproduction from the position corresponding to the data at the interruption point track position (resume point) already recorded in step S3 is resumed (step S7).

On the other hand, when the time detected by the time detecting section 5 is shorter than the predetermined time t (t0), the reproduction from the head position of the music track Ti including the interrupted track position is restarted (step S6). It will be terminated later.

It should be noted that the present invention is not limited to the above-described embodiment, and various modified embodiments can be adopted without departing from the gist of the present invention. For example, the "first resume mode" in which the resume function is executed by the time detecting unit 5 or the like when the reproduction is resumed, and regardless of the time detection result by the time detecting unit 5 or the like when the reproduction is resumed,
A "mode selection unit" capable of selecting the "second resume mode" capable of performing reproduction from the track position at the time of the interruption and performing the resume operation is additionally provided in the configuration of the above-described embodiment, and according to the recording mode of the track information. By selectively using these modes, an easy-to-use playback device with a resume function is realized.

That is, if the recording mode of the track information is a music song, the "first resume mode" is selected, and if the recording mode of the track information is a karaoke song or recitation, the "second resume mode" is selected. Is selected, the resume function can be made more realistic.

The "elapsed time" detected by the time detecting unit 5 or the like is determined by stopping the reproduction of the track after the operation key for starting the reproduction from the beginning of one of the plurality of tracks is operated. Alternatively, it may be obtained by measuring the time until an operation key for operating the key is operated.

Further, the above-mentioned predetermined time can be manually set arbitrarily, and can be set freely according to the user's preference. Further, the point at which the reproduction is interrupted for the resume function is set in the music track. If the time t3 is very short from the end point (see FIG. 3), the reproduction from that point may be omitted and the reproduction from the beginning of the next track T (i + 1) may be performed.

The information reproducing medium to be used in the reproducing apparatus of the present invention is not limited to a CD, but may be an optical disk such as an MD, a magnetic tape such as an audio cassette tape or a video cassette tape, a smart media or a compact flash memory. Of course, the medium may be used.

[0033]

As is apparent from the above description, the playback device with the resume function according to the present invention determines the point at which playback is resumed based on how long the playback interruption point has elapsed from the beginning of the playback track. Since the playback is started from the playback stop point or from the beginning of the playback track, resume playback from the position corresponding to the track position (resume point) at the interruption point and resume playback from the beginning of the playback track are performed. Can be automatically selected according to the playback interruption status, so that playback resumes in an unnatural state where the beginning of the track is interrupted, realizing a resume function more suited to the entity be able to.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing a schematic circuit configuration of a playback device with a resume function according to an embodiment of the present invention.

FIG. 2 is a flowchart for mainly explaining a resume operation of the playback device with a resume function shown in FIG. 1;

FIG. 3 is a schematic diagram conceptually showing a relationship between a track and a resume point in a resume operation of the playback device with a resume function shown in FIG. 1;

FIG. 4 is a schematic diagram conceptually showing a relationship between a track and a resume point in a resume operation by a conventional playback device with a resume function.

FIG. 5 is a flowchart for mainly explaining a resume operation by a conventional playback device with a resume function.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microcomputer 2 CD reproduction part 3 Operation key 3a Reproduction key 3b Stop key 4 Resume switch 5 Time detection part

Claims (5)

[Claims] When a reproduction is interrupted during reproduction of an information reproducing medium having a plurality of tracks on which information such as images and sounds are recorded, a track position at the time of the interruption is detected and stored, and the reproduction is performed. In a playback device with a resume function capable of performing playback from a position corresponding to the interruption point track position when resumed, a time detection unit that detects an elapsed time from the head position of the track at the interruption point track position When the time detected by the time detection unit is longer than a predetermined time, control is performed so that reproduction from the track position at the interruption point can be resumed, and when the detected time is shorter than the predetermined time, the interruption time And a control unit for controlling reproduction of the track including the track position from the head position. Playback device with system function. 2. When playback is interrupted during playback of an information playback medium having a plurality of tracks on which information such as images and sounds are recorded, a track position at the time of interruption is detected and stored. In a playback device with a resume function capable of performing playback from a position corresponding to the interruption point track position when resumed, a time detection unit that detects an elapsed time from the head position of the track at the interruption point track position When the time detected by the time detection unit is longer than a predetermined time, control is performed so that reproduction from the track position at the interruption point can be resumed, and when the detected time is shorter than the predetermined time, the interruption time A control unit that controls so that reproduction from the head position of the track including the track position can be resumed; A first resume mode in which a resume function is performed by a detection unit and the control unit; and when the reproduction is resumed, reproduction from the track position at the interruption point can be performed regardless of the time detection result by the time detection unit. A playback device having a resume function, comprising: a mode selection unit capable of performing a resume operation by selecting a second resume mode. 3. An operation key for stopping reproduction of the track after the operation key for starting reproduction from the beginning of one of the plurality of tracks is operated. The playback device with a resume function according to claim 1 or 2, wherein the playback device is configured to be able to set the elapsed time to the elapsed time. 4. The reproducing apparatus with a resume function according to claim 1, wherein the control unit is configured to manually set the predetermined time. 5. The information reproducing medium according to claim 1, wherein the information reproducing medium comprises an optical disk such as a CD or MD, a magnetic tape such as an audio cassette tape or a video cassette tape, a medium such as a smart media or a compact flash memory. A playback device with a resume function according to claim 4.