JPH03203082A - Display device for recording or reproducing device - Google Patents

Abstract

PURPOSE:To make important displayed contents easy to see by displaying a level meter part occupying a comparatively large area by switching it selectively accordingly to sampling frequency information, and simultaneously, display the recording or reproducing position at present and the recordable or reproducible remaining time of a recording medium attached to the meter. CONSTITUTION:The level of a recording signal is displayed by switching selec tively plural level meter parts 2a, 2b arranged in parallel according to the sampling frequency information of the recording signal recorded on the recording medium. Here, the meter 2a is constituted of plural segments 2a1 to 2a22 ar ranged in series, and the meter 2b is constituted of the segments 2b1 to 2b22 as well. Besides, the recording and reproducing position at present in the whole recording medium or the remaining time of recording or reproducing are dis played on the meter parts 2a, 2b as well. The display part 2 of a digital audio tape recorder is constituted previously in this way, and when the frequency of information is 32kHz or 48 kHz, the meter part 2a or 2b is operated respec tively, and the segment is made to emit light correspondingly to present time.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to, for example, a digital audio tape recorder (DAT; DIGITAL, AIJOIOT).
The present invention relates to a display device for a recording or reproducing device suitable for use in an APEREC FIDER.

[Summary of the invention]

The present invention relates to a display device for a recording or reproducing device suitable for use in a DAT, for example, and which displays the level of a recording signal recorded on a recording medium according to sampling frequency information of the recording signal recorded on the recording medium. A level meter section in which a plurality of display segments are arranged in series is selectively switched to display a level meter section in which a plurality of display segments are arranged in parallel. By displaying the playback position or the remaining recording or playback amount of the recording medium using the plurality of level meter sections, the display necessary for the recording or playback device is made easier to see and convenience is improved. This is what I did.

[Conventional technology]

In general, DAT records or reproduces digital audio signals recorded on satellite broadcasting mode A with a sampling frequency of 32kHz, mode B with a sampling frequency of 48kl (z), or compact discs with a sampling frequency of 44.1kHz. It is done as expected.

As a recording medium, a cassette tape that is smaller in size than a normal cassette tape is used, and even with such a small cassette tape, high-quality reproduced sound can be obtained.

In addition, the display area where the level of the recorded signal or playback signal is displayed occupies a relatively larger area than the other display contents of the display device, which makes it difficult for the user to understand the recorded signal and the playback signal. It is set to make it easier to see the signal level.

[Problem to be solved by the invention]

However, since the sampling frequency during recording or playback of this DAT is often displayed on the display, it is only displayed in a small size, and when the user wants to check the sampling frequency, it is difficult to see. there were.

Also, because cassette tapes are small, it is difficult to visually check where the recording or playback position is currently on this tape, or how much remaining time there is on the tape. When the cassette tape is replaced with another cassette tape and recording is subsequently performed, the timing of replacing the cassette tape cannot be known and recording cannot be performed in a timely manner.

The present invention has been made in view of the above-mentioned conventional problems.
The purpose is to display the sampling frequency, the current recording or playback position of the recording medium, or the remaining recording or playback time of the recording medium, making important display contents easier to see and improving convenience. An object of the present invention is to provide a display device for a recording or reproducing device.

(Means for Solving the Problems) A display device of a recording or reproducing device according to the present invention is configured to display a signal according to sampling frequency information of a recording signal recorded on a recording medium, as shown in FIGS. 1 to 3, for example. , multiple segments that display the level of the recording signal recorded on the recording medium)
(2al) to (2a22).

(2bl) to (2b22) are arranged in series, and the level meter sections (2a) and (2b) are arranged in parallel. In addition to displaying the current recording or playback position for the entire loaded recording medium or the remaining recordable or playable amount of the recording medium, the plurality of level meter sections (2)
a) and (2b).

[Effect]

In the display device of the recording or reproducing device according to the present invention, the level meter section, which occupies a relatively large area, is selectively switched and displayed according to the sampling frequency information, and the current state of the attached recording medium is displayed on the level meter. Since the recording or playback position of the recording medium or the remaining recording or playback time of the recording medium is displayed, important display contents such as the sampling frequency can be easily seen.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a display device for a reproducing or recording apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 shows DAT (11 operation panels (1
a) Part is shown.

In the figure, the operation panel (1a) includes a display section (3) where various displays such as level values are displayed, and a tape drive mode switching section (5) where the tape is run, stopped, etc.
and a counter mode button (7) for switching the display contents on the level meter section (2) (see FIG. 3) of the display section (3).

The tape drive mode switching selection section (5) includes a cassette tray opening button (5a) and a tape running stop button (5a).
5b), playback button (5C), recording button (5d), pause button (5e), recording mute button (5f), tape fast forward button (5g), tape rewind button (5h) ) are provided for each.

Figure 2 shows the main electrical III of D A T +11.
A system block diagram of the system is shown, in which the tape drive mode switching selection section (5) and the counter motor are shown.
Various output signals from the input section (11) including the topokun (7) are taken into a microcomputer (9) mainly composed of a CPU, etc., and the microcomputer (9) performs processing based on the various signals taken in. the display (
3, the recording/reproducing circuit section (13), the system drive control section (15), etc. are controlled.

In this case, the recording/reproducing circuit section (13) includes A/D, D
/A conversion circuit (13a), encoder, decoder (1
3b), recording/reproducing amplifier (13c), rotating head (1
3d), and the system drive control unit (15) is
Reel drive control circuit (15a), capstan servo circuit (15b), rotating drum servo times! 5 (15c).

Figure 3 shows the contents displayed on the display section (3). In this figure, when the counter mode button (7) is operated, the level meter (2) indicates the current running position of the tape. This mode is used to display the sampling frequency (Fs) of recorded information.

That is, in this embodiment, the counter mode button (7)
is operated, Fs of the information recorded on the tape is 3
At 2kHz, only the level meter section (2a) is lit, while when Fs is 48kHz, the level meter section (2b) is lit.
) is used only when lit.

Also, when Fs is 44.1kHz, the level meter section (
2a) and (2b) are both lit and used, and when no information is recorded on the tape, the level meter section (2a).

(2b) are not lit either.

In this case, the level meter sections (2a) and (2b) are
They are arranged in parallel and each have 22 segments (2al) ~(2a22), (2bl) ~(
2b22), a level meter section (2a),
(2b) At both end positions in the longitudinal direction, rLJ and r
The letters AJ, rRJ, and rBJ are lit.

In addition, at the upper position of the level meter section (2a), r TOP J is located at the leftmost position in the figure along the longitudinal direction.
rM I DJ at the middle position, rEN at the rightmost position
[The letters lJ are lit.

In this case, the letters rLJ and rRJ represent the left channel and right channel, respectively, and the letter "A".

rBJ represents A mode and B mode of satellite broadcasting, and the letters rTOPJ and rM I DJ.

rENDJ indicates the current position when recording or reproducing the tape.

In other words, all segments <2al) to (2a22) or (2bl) to (2b22) are the recording or playback time of the entire tape (hereinafter simply referred to as the total time), and the total time is actually recorded or played back. segment (2al) so that the current time (hereinafter simply referred to as current time) is proportional.
〜(2a22) or (2bl) 〜(2b22) are set to be lit. For example, in the case of FIG. 3, the diagonally shaded segments (2al) through (2alO) are set to be lit.
is lit and the segment (2all) is blinking.

Therefore, the sampling frequency is 32, which corresponds to A mode.
k) lz, the current time is the midpoint corresponding to rMI DJ, and it is visible that there is still half the remaining time for recording or playback of the tape.

Next, the processing procedure performed by the CPU of the microcomputer (9) when the counter mode button (7) is turned on will be described with reference to the flowchart of FIG.

In the figure, when the counter mode button is turned on (step (100) YES), step (16
0) is measured, and when the measurement is completed (step (110) Y
ES), Fs map, that is, processing is started to display the current time of the tape and Fs (step (140)).

In this case, if the measurement is not completed in step (110), a message indicating that measurement is in progress is displayed at an appropriate position on the display section (3) (step (120); display during measurement).
, level meters (2a) and (2b) display normal level values, that is, values of input and output signals during recording or reproduction (step (130)).

Then, in step (160), the number of segments (dots) to be lit is calculated from the current time of the tape, the total time of the tape, etc. on the condition that the measurement has been completed (step (150) YES). Based on the calculation result, the segment corresponding to the current time on the tape is selected and set, and the level meter (2a),
(2b) The information in the memory such as RAM (provided in the microcomputer (9)) corresponding to the segment to be lit is once reset (step (170)
), step (180), step (190)).

In this way, step (180), step (190)
), the memory is reset once in step (21).
0) etc., the memory needs to be sent.

Next, it is determined which value the FsO value is, Fs=3
In the case of 2kHz (step (200) YES), information for lighting only the segment of the level meter (2a) and lighting only the rightmost segment among the lit segments is set in the memory (step (210) ).

On the other hand, when Fs = 44.1kHz (step (20
0) NO, step (220) YES), level meter (2a).

Level meter (2a) to light both (2b)
.

The memories corresponding to (2b) are each set (steps (230) and (240)).

In addition, in the case of Fs-48kHz (step (200) N
O, step (220) NO, step (250)
YES), in order to light up only the level meter (2b), the memory corresponding to the level meter (2b) is set (step (260)).

Furthermore, if there is no recorded information (step (2)
00) No, step (220) No, step (
250)N(1), or when step (210), step (240), and step (260) are completed, the process returns to step (100) and similar processing is performed cyclically.

In this case, the processing performed in step (160) is performed using data obtained during tape playback, when searching for a reproduced portion, and during tape fast forwarding, and is
The s-muff display is also performed when the tape is running in each state.

As explained above, in this embodiment, when the counter mode button (7) is turned on, the level meter (2a)
, (2b), instead of the normal level value display, the current time of the tape and Fs, that is, the Fs map are switched so that they can be visually recognized.

Therefore, without providing a display section for displaying the Fs map,
Fs map information is displayed, improving the convenience of DAT (11).

Furthermore, since the display of the Fs map information is processed by software, there are almost no changes in the design of DAT (11), and the display of the Fs map information can be easily performed.

〔Effect of the invention〕

As understood from the above explanation, the display device of the recording or reproducing device according to the present invention selectively switches and displays the level meter section occupying a relatively large area according to the sampling frequency information, and also displays the level The meter displays the current recording or playback position of the installed recording medium or the remaining recording or playback time of the recording medium, making important display contents such as sampling frequency easier to see, improving convenience. be done.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the operation panel of a DAT in a preferred embodiment of the display device of a recording or reproducing device according to the present invention, FIG. 2 is a system block diagram showing the electrical configuration of the DAT, and FIG. 3 is a diagram of the DAT. FIG. 4 is a flow chart showing the processing procedure performed by the CPU of the DAT. (1) is DAT, f31 is display, (7) is counter mode button, (9) is microcomputer, (2a)
, (2b) is a level meter. Agent Hide Mori Matsukuma

Claims (1)

[Claims] A plurality of level meter sections each having a plurality of segments arranged in series for displaying the level of a recording signal recorded on the recording medium are arranged in parallel according to sampling frequency information of the recording signal recorded on the recording medium. In addition to selectively switching and displaying the level meter section provided, the current recording or playback position of the entire loaded recording medium or the remaining recording or playback capacity of the recording medium is displayed at the plurality of levels. 1. A display device for a recording or reproducing device, characterized in that the display is provided by a meter section.