JPH04351778A - Recording medium reproducing device - Google Patents

Abstract

PURPOSE:To attain a registration for plural program patterns in a recording medium reproducing device. CONSTITUTION:At the time of a program mode, one of storage parts 19-1-19-N of a memory 26 is selected by depressing a selecting key on an operation panel, and desired program numbers are successively registered thereon. This registration is easily performed by depressing a specified memory executing key during an intro-scanning which makes only the heads of music in each program successively scan for the reproduction. At the tape reproducing time, on the other hand, the program numbers registered in a selected storage part are successively read out by depressing the reproducing key on the operation panel after selecting any one of the storage parts 19-1-19-N by depressing the specified selecting key, then the corresponding music is searched and reproduced.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for reproducing digital information such as music recorded on a magnetic tape, and more particularly, the present invention relates to a recording medium having a program mode in which a plurality of desired songs on a tape can be selected and played back. Regarding a playback device.

0002

2. Description of the Related Art Devices for digitally recording data on predetermined tracks of magnetic tape have been put into practical use, such as R-DAT.
(rotating digital audio tape recorder) system. Unlike conventional analog recording, this digital magnetic tape device suffers less signal deterioration during recording and playback, allowing for high-density recording, follow-up recording,
Another advantage is that various edits such as high-speed search and song selection using subareas can be easily performed. Therefore, such a digital magnetic tape device can be applied not only to audio recording like the above-mentioned R-DAT, but also to recording and reproducing graphics and other digital data.

[0003] In digital magnetic tapes such as R-DAT, a so-called helical scan method is usually used in which a rotating head is scanned obliquely with respect to a running magnetic tape. In this method, a long straight track is formed on the magnetic tape, which is slightly inclined with respect to the tape running direction. For this reason, there is an advantage that the magnetic tape can be brought into reliable contact with the head while maintaining stable tape running, and that the rotational speed of the rotary head can be relatively low by using a large diameter drum.

Tracks in such a helical scan system generally have a tape format consisting of a PCM (main) area for digitally recording data and a subarea for digitally recording subcode signals indicating the characteristics of this data. By continuously forming these tracks on the magnetic tape, predetermined data can be recorded. Further, each data is managed by a subcode signal of a subarea provided in each track. For example, if the data to be recorded is multiple pieces of music, each song's program number, cue number,
A start code signal, priority code signal, etc. will be recorded in the subarea of the required track.

[0005] Among these, program numbers are sequentially written in subareas of necessary tracks for each data segment, and a desired program can be selected by sequentially searching these numbers. In addition, a random high-speed search is also possible in cooperation with a program memory that stores these recording orders.

[0006] Also, the start code signal is the start ID
It is one of the most important subcode signals. This start code signal is usually recorded for 9 seconds at the beginning of a song and is used during playback or high-speed search. For example, when this signal is detected during normal playback, a start indicator lamp provided on the operation panel, for example, lights up during that time to indicate that the beginning of the song is being found.

By the way, when playing back a plurality of songs recorded on a magnetic tape with such an apparatus, there are cases where it is desired to play only a specific song rather than all of them. In response to such demands, conventional devices have been provided with a so-called program mode in which the program number of a desired song is registered and only the registered song is played back.

[0008]

However, in such conventional devices, only one set of program numbers can be registered in advance. For this reason, for example, when multiple people with different tastes play the same tape, it is necessary to change the program number registration each time in order for each person to automatically play only the desired songs. In addition, even if the same person wants to select and listen to only the desired songs from multiple tapes with different contents,
It was necessary to change the program number registration every time the tape was replaced.

[0009] As described above, although conventional playback devices have a program mode function, that function is only effective for a specific tape by a specific person, and is extremely difficult to use for playback by multiple people or for playback of multiple tapes. There was a problem. Therefore, there is a problem that the above problems must be solved. The present invention has been made to solve this problem, and an object of the present invention is to provide a recording medium reproducing device having a program mode that is effective even when used by multiple people or when reproducing multiple tapes.

0010

[Means for Solving the Problems] A recording medium reproducing device according to the invention as set forth in claim 1 comprises: (i) program selection means for selecting one or more desired programs from a medium on which a plurality of music programs are recorded; , (ii) a plurality of memories for separately storing a plurality of sets of program numbers selected by the program selection means; and (iii) a desired one is selected from among these plurality of memories. It has a memory selection means, and (iv) a reproduction means for sequentially reproducing the songs of the program numbers in the memory selected by the memory selection means.

[0011] The recording medium reproducing apparatus according to the second aspect of the invention is a recording medium reproducing apparatus equipped with a radio receiving section, and the memory selection means of the recording medium reproducing apparatus according to the first aspect is a radio receiving station. This uses a selection key.

0012

In the recording medium reproducing apparatus according to the first aspect of the invention, since a plurality of memories are provided, it is possible to register a plurality of program patterns. Also, when playing a tape,
By selecting one of the memories, each song can be played back using the program pattern in that memory.

Further, in the recording medium playback device according to the invention as claimed in claim 2, in the case of a device equipped with a radio reception circuit, operations during tape playback can be performed with one touch by using the reception station selection key for memory selection. It can be carried out.

[0014]

EXAMPLES The present invention will be explained in detail with reference to Examples below. FIG. 1 shows the main parts of a magnetic tape reproducing apparatus as an embodiment of the recording medium reproducing apparatus according to the present invention. In this figure, a magnetic head (11) supported on a rotating drum (not shown) is in contact with a magnetic tape (12) whose running is controlled by a drive motor (not shown), and is held at a predetermined angle with respect to the running direction of the magnetic tape (12). It is designed to perform a helical scan across the screen. This allows magnetic tape (1
2) Data is sequentially read from each track formed at this angle on the top and input to the reproduction section (18).

FIG. 2 shows tracks formed on a magnetic tape (12). As shown in this figure, tracks (14) are continuously formed on the magnetic tape (12) so as to form an angle θ with the tape running direction T. Each track consists of a PCM area (15) provided in the center, an ATF (auto track following) area (16) provided on both sides of the PCM area, and sub-areas (17) provided on both sides. Ru. Of these, the PCM area (15) is an area where the song data itself is recorded, the ATF area (16) is an area where information necessary for tracking is recorded, and the sub area (17) is an area where the song data itself is recorded.
) is an area for recording the various subcode signals described above.

Now, the signal input to the reproduction section (18) (FIG. 1) is amplified by the reproduction amplifier (13), demodulated and subjected to equalization processing by the equalizer (21), and then sent to the digital signal processing circuit (22). is input. The reproduced signal input to the digital signal processing circuit (22) is subjected to predetermined signal processing, and is directly output as a digital signal from the digital output terminal (23), and is also converted into an analog signal via the D/A converter (24). It is designed to be output as an analog signal from the output terminal (25).

The digital signal processing circuit (22) is equipped with a subcode detection section (not shown), which detects various subcode signals from the input reproduction signal and sends them to the microcomputer (27). It has become.

The microcomputer (27) controls operations such as playback, recording, high-speed search, etc. based on instructions input from the operation unit (28), and also controls sub-computers input from the digital signal processing circuit (22). Based on the code signal, a display control section (31) is controlled to display predetermined information on a display (32).

The microcomputer (27) also has N storage units (1) each having an independent address.
A memory (26) consisting of 9-1) to (19-N) and a selection section (20) for selecting one of these is connected, and a set of one or more program numbers specified by the operation section (28) is connected. are stored separately.

FIG. 3 shows the external appearance of this magnetic tape reproducing apparatus. The front panel of this device (33
) has an insertion slot (
34), power switch (3) for turning on the power of the device
6), a display device (32) for displaying various information, and a plurality of other operation keys are provided. These operation keys include a playback key (41), stop/eject key, record key, high-speed search key, etc., as well as an intro scan key (42) and a repeat key (43). Here, intro scanning is a method of sequentially scanning and playing the beginning of each song among multiple songs on a tape for a predetermined period of time. This allows you to easily select a program while checking the program by ear. . The repeat key (43) is used to repeatedly play all programs or a specified program, and also changes the mode of the device to the storage units (19-1) to (19-N) of the memory (26) described above. It is also used to switch to a mode for setting a desired program (hereinafter referred to as program mode).

Furthermore, on this front panel (33), storage sections (19-1) to (1) in the memory (26) in FIG.
19-N), and a selection key (35) used when selecting one of the items (19-N), and these storage units (19-1) to (19-
-N) is provided with a memory execution key (37) which is used to store a desired program number.

As the display (32) provided on the front panel (33), for example, a liquid crystal display or an LED display is used, and the following display is performed.

■ "PLAY": Lights up during tape playback.

■First 8-segment display section (38): Displays the corresponding program number during playback, high-speed search, and intro scan.

(2) Second 8-segment display section (39): Displays the playback time during normal playback, and displays the numbers of the storage sections (19-1) to (19-N) being set during program mode.

The operation of the magnetic tape reproducing apparatus configured as above will be explained with reference to FIG. First, the case of registering a desired program on a tape will be explained.

Operation when registering a program First, press the repeat key (
43) (step S101) and select the program mode (step S102; Y). Next, when the selection key (35) is pressed to select one of the storage units (19-1) to (19-N) (step S103; Y), the corresponding storage unit is selected and its number is changed to the second 8 It is displayed on the segment display section 39 (step S104). Here, each time the selection key (35) is pressed, the display changes by 1.
It is incremented by one.

Here, when the intro scan key (42) is pressed (step S105; Y), intro scan starts (step S106), and the beginnings of each program are sequentially played for 8 seconds each. At this time, the program number being played back is displayed on the first 8-segment display section (38). When the memory execution key (37) is pressed while the beginning of a desired program is being played (step S107; Y), the number of that program is stored in the already selected memory section (19-1). )～(1
9-N) (step S108
).

Similarly, by pressing the memory execution key (37) every time the beginning of a desired program is played, the selected program number will be sequentially written into the corresponding storage section.

In this case, for example, if another person wants to register a different combination of programs on this same tape, specify the number of another storage section in step S103,
One or more program numbers desired by the person can be stored in this storage unit.

[0031] For example, if this same person wants to play only a desired program on another tape, he/she attaches that tape, specifies the number of the other storage section in step S103, and then repeats the same procedure. to select the program.

Next, the operation when reproducing a registered program will be explained.

Operation when reproducing a registered program First, operate the repeat key (43) on the operation panel (33) of this device (step S101) and select the selective reproduction mode (step S102; N, step S110; Y). Next, press the selection key (35) to select the memory section (19-1) to (1).
9-N) is selected (step S111;
Y), the corresponding storage section is selected and its number is set to the second 8
displayed on the segment display section 39 (step S112
). Here again, the display is incremented by 1 each time the selection key (35) is pressed.

After the desired storage section number is selected in this way, when the playback key (41) is pressed (step S113; Y), the microcomputer (27) reads the program stored in the corresponding storage section. Start playing the numbered song. That is, first set the variable K to 1, and then (
Step S114), read the Kth (first) program number from the corresponding storage section (step S115)
, the program with this number is searched and reproduced (step S116). At this time, the first 8 segment display section 3
8 displays the program number currently being played.

When the reproduction of this song is finished, the variable K is incremented by 1 (step S118) and becomes "2". As a result, the second program number is subsequently read from the storage section, and the corresponding song is searched and played.

The above operation continues until all program numbers stored in the storage section are read out (step S11).
7; Y) Will be repeated.

[0037] In this way, a song can be easily played back in a desired program pattern by simply operating the selection key (35) and playback key (41).

Next, a magnetic tape reproducing apparatus according to another embodiment of the recording medium reproducing apparatus according to the present invention will be described. As shown in FIG. 5, this device includes a radio receiving section (45).
is provided. The microcomputer (27) is
Based on instructions from the operation unit (28), it is determined whether the mode is radio reception mode or magnetic tape playback mode, and when in radio reception mode, it instructs the radio reception unit (45) to output, while when in magnetic tape playback mode, it instructs the radio reception unit (45) to output. The playback unit (18) is instructed to output.

FIG. 6 shows the external appearance of this magnetic tape reproducing apparatus. The operation panel (33) of this device is provided with a tape selection key (46) for selecting a magnetic tape playback mode and a radio selection key (47) for selecting a radio reception mode. A plurality of (six in this case) selection keys (48) are provided for selecting a receiving station in the mode. These channel selection keys (48) are also used to select one of the storage sections in which programs are registered in advance during tape playback mode. Therefore, the selection key (
35) is not provided because it is not necessary.

Further, as the display (32), for example, a liquid crystal display or an LED display is used, and the following display is performed.

■ "PLAY": Lights up during tape playback.

[0042] ``AM'': Indicates that an AM channel is being selected in the radio reception mode.

[0043] ``FM'': Indicates that FM tuning is in progress in radio reception mode.

■First 8-segment display section (38): Displays the corresponding program number during playback, high-speed search, and intro scan.

(2) Second 8-segment display section (39): Displays the playback time during normal playback, and displays the numbers of the storage sections (19-1) to (19-N) being set during program mode. Also, when receiving radio, the reception frequency is displayed.

The other parts are the same as those in the first embodiment (FIGS. 1 and 3), so their explanation will be omitted.

In this embodiment, the channel selection key (48) is
When receiving radio, it operates as a preset key with the reception frequency set in advance, but when in tape mode, it is used to select the storage section (FIG. 5). In other words, when registering a program, if you press any of these selection keys (48),
The storage section with that number is selected, and from then on, the program numbers selected during the intro scan are sequentially stored. Also, press the desired channel selection key (48) and then press the playback key (4).
When 2) is pressed, the program number stored in the selected storage section is read out, and the corresponding programs are played back in sequence.

In the two embodiments described above, the program number selection is performed using the intro scan operation, but the invention is not limited to this. For example, a separate numeric keypad may be provided and the program number may be input from this. After that, the memory execution key (37) may be pressed to select the program.

[0049]

As explained above, in the recording medium playback device according to the invention as claimed in claim 1, since a plurality of memories for registering program patterns are provided, it is possible to register a plurality of different program patterns. Can be done. As a result, by registering the necessary program pattern for each user or each tape, even if the listener or tape changes, only the desired song can be played by simply specifying the pattern at the time of playback. Therefore, it is no longer necessary to register a program pattern each time a listener or tape changes as in the past, and the effectiveness of the program mode function can be improved.

Furthermore, in the recording medium playback device according to the invention as claimed in claim 2, in a device equipped with a radio receiving circuit, the receiving station selection key is used for memory selection, so that such a composite audio Even in a device, an increase in the number of operation keys can be suppressed. Furthermore, since program pattern selection during tape playback can be done with a single touch, especially in a device intended for use in a vehicle, the driver's concentration on driving is less likely to be disturbed and this can contribute to safe driving.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of a magnetic tape playback device as an embodiment of a recording medium playback device according to the present invention.

FIG. 2 is an explanatory diagram showing a recording format of a magnetic tape played back by this magnetic tape playback device.

FIG. 3 is an external perspective view of the magnetic tape playback device.

FIG. 4 is a flowchart for explaining the operation of this magnetic tape playback device.

FIG. 5 is a block diagram showing the main parts of a magnetic tape reproducing apparatus as a second embodiment of the recording medium reproducing apparatus according to the present invention.

FIG. 6 is an external perspective view of the magnetic tape playback device.

[Explanation of symbols]

(18) Playback section (19-1) to (19-N) Storage section (26) Memory (27) Microcomputer (28) Operation section (32) Display (35) Selection key (37) Memory execution key (41 ) Play key (42) Intro scan key (43) Repeat key (45) Radio receiver (46) Radio selection key (47) Tape selection key (48) Tuning key

Claims (2)

[Claims] 1. A device for obtaining reproduction signals from a medium on which programs of a plurality of musical pieces are recorded, comprising: program selection means for selecting one or more desired programs from the recording medium; A plurality of memories each storing a plurality of sets of selected program numbers separately; a memory selection means for selecting a desired program from among the plurality of memories; 1. A recording medium playback device comprising: playback means for sequentially playing back songs with program numbers stored in a memory. 2. The recording medium reproducing apparatus according to claim 1, comprising a radio receiving section, wherein a radio receiving station selection key is used as the memory selection means.