JP3606261B2 - Sound playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sound reproducing apparatus for reproducing sound (music) data or the like on a disk-shaped recording medium such as an optical disk or a magneto-optical disk or a tape-shaped recording medium such as a digital audio tape.
[0002]
[Prior art]
Optical discs and digital tapes are widely used as recording media for recording music and the like as digital data. In these media, not only audio signal data and control data such as addresses necessary for audio signal reproduction processing, but also albums are used. Character data such as titles, song titles, and player names are also recorded.
By displaying these character data on a display unit provided in the playback device, for example, during performance, the user can know the name of the song being played, the name of the performer, and the like.
[0003]
[Problems to be solved by the invention]
By the way, it is difficult to attract the user's attention to the display unit simply by displaying, and the displayed music title may be overlooked.
In addition, the number of characters of such character data such as a song title is unspecified, while the number of characters that can be displayed on the display unit is naturally limited by its design specifications. For this reason, when the number of digits of the character data to be displayed is larger than the number of displayable digits, there is a problem that all the characters cannot be displayed.
Of course, it is conceivable to set a sufficiently large number of characters that can be displayed on the display unit, but this is not practical because it wastes the display area and contradicts the demand for downsizing of the device.
[0004]
[Means for Solving the Problems]
The present invention has been made in view of the above problems, and promotes the user's interest in the display unit, and also for character information having more digits than the displayable number of digits in the display unit. An object is to enable all characters in the information to be displayed to the user.
[0005]
For this reason, the sound reproducing apparatus of the present invention records audio data and management data corresponding to the audio data, and the management data corresponds to the album name information and the music as the audio data as character information. In a sound reproducing apparatus that reproduces a recording medium including music piece information to be read, a reading means capable of reading audio data and management data from the recording medium;The management data read from the reading means is displayed.The display means and at least control for causing the display means to display character information as album name information or song name information in the management data read by the reading means at a timing corresponding to the output of the audio data,The above displayed on the display meansText informationOne digit each time a scroll command signal is input by an external operationIt was possible to control the display by scrolling sequentially.scrollDisplay control means.
[0006]
The sound reproducing apparatus of the present invention records audio data and management data corresponding to the audio data, and the management data corresponds to album name information and music as the audio data as character information. In a sound reproducing apparatus for reproducing a recording medium containing music piece information to be played, a reading means capable of reading audio data and management data from the recording medium, and a display means for displaying the management data read from the reading means And at least controlling the display means to display character information as album name information or song name information in the management data read by the reading means on the display means at a timing corresponding to the output of the audio data. Scrolling the displayed character information by external operation After input of the command signal, every predetermined set time 1 Scroll display control means capable of controlling the display by sequentially scrolling digits by digit.
[0007]
Furthermore, in the sound reproducing device of the present invention, audio data and management data corresponding to the audio data are recorded, and the management data corresponds to album name information and music as the audio data as character information. In a sound reproducing apparatus for reproducing a recording medium containing music piece information to be played, a reading means capable of reading audio data and management data from the recording medium, and a display means for displaying the management data read from the reading means And control to display at least the character information as album name information or song name information in the management data read by the reading means on the display means at a timing corresponding to the output of the audio data. About the display and the above album name information display A priority mode setting means for giving priority to one of the display, and a scroll display for performing a scroll display on one of the music name information display and the album name information displayed according to the setting by the priority mode setting means. And a control means.
[0008]
By performing scroll display, dynamic display can be performed to promote the user's interest, and any number of character information can be handled regardless of the number of digits on the display unit.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the first embodiment of the sound reproducing apparatus of the present invention will be described with reference to FIGS. This embodiment is a recording / reproducing apparatus using a magneto-optical (MO) disk as a recording medium. FIG. 1 is a block diagram of the main part of the recording / reproducing apparatus.
[0010]
In this figure, reference numeral 1 denotes a magneto-optical disk, which is driven to rotate by a spindle motor 2. A plurality of musical pieces are recorded as audio data on the magneto-optical disc 1, and in the TOC area of the magneto-optical disc 1, in addition to performance time data and the number of songs, etc. The name of each song is recorded.
An optical head 3 irradiates the magneto-optical disk 1 with laser light during reproduction, and detects data from the reflected light by the magnetic Kerr effect.
[0011]
The optical head 3 is equipped with a laser diode as laser output means, an optical system including a polarizing beam splitter, an objective lens, and the like, and a detector for detecting reflected light. The objective lens 3a is held by a biaxial mechanism 4 so as to be displaceable in the radial direction of the disk and in the direction of contacting and separating from the disk, and the entire optical head 3 can be moved in the radial direction of the disk by the sled mechanism 5.
[0012]
Information detected from the magneto-optical disk 1 by the optical head 3 by the reproducing operation is supplied to the RF amplifier 6. The RF amplifier 6 extracts a reproduction RF signal, a tracking error signal, a focus error signal, address information, and the like by a calculation process of the supplied information. The extracted reproduction RF signal and address information are supplied to the signal processing unit 7 and subjected to CIRC decoding processing, EFM demodulation processing, and the like.
[0013]
The reproduced audio signal extracted by the decoding process is converted into an analog audio signal (L, R audio) by the D / A converter 8 and output from the terminal 9 to a predetermined circuit unit. Further, address information, time code data, and the like are supplied to a control unit 10 constituted by a microcomputer and used for reproduction operation control.
[0014]
The tracking error signal and focus error signal obtained by the RF amplifier 6 are supplied to the servo drive circuit 11.
The servo drive circuit 11 generates various servo drive signals based on the supplied tracking error signal, focus error signal, track jump command, seek command, rotational speed detection information, etc. from the control unit 10 to generate the biaxial mechanism 4 and the sled mechanism. 5 is controlled to perform focus and tracking control, and the spindle motor 2 is controlled to a constant angular velocity (CAV) or a constant linear velocity (CLV).
[0015]
Reference numeral 12 denotes a key operation unit provided for user operation, which is provided with playback operation keys such as a play / pause key 12a, a stop key 12b, and an AMS key 12c, a recording key 12d, a scroll key 12e, and a display mode. A key 12f and the like are provided. A jog dial 12g is also provided and used for display scroll control operations as described later, as well as operations such as variable speed reproduction. Key operation information from the key operation unit 12 is supplied to the control unit 10.
[0016]
Reference numeral 13 denotes a liquid crystal display driver, and reference numeral 14 denotes a display unit configured to display a 12-digit character by a dot matrix type liquid crystal display, for example. When display data is supplied from the control unit 10 to the liquid crystal display driver 13, the liquid crystal display driver 13 generates a drive voltage corresponding to the display data and applies it to a predetermined liquid crystal electrode in the display unit 14, thereby A display operation is performed.
Reference numeral 15 denotes a RAM that stores character data read from the TOC area of the magneto-optical disk 1.
[0017]
On the other hand, reference numeral 16 denotes a terminal to which an audio signal to be recorded is supplied to the magneto-optical disk 1, and the signal inputted from the terminal 16 is converted into a digital signal by the A / D converter 17, and then a recording signal processing unit. 18 is subjected to audio compression encoding processing, CIRC encoding processing, EFM modulation processing, and the like to obtain recording data. The recording data is supplied to the magnetic head driving circuit 19, and the magnetic head driving circuit 19 applies an N or S magnetic field from the magnetic head 20 to the magneto-optical disk 1 in accordance with the supplied recording data.
[0018]
At the time of recording, a laser beam having a higher output than that at the time of reproduction is irradiated from the optical head 3, and the magnetic head 20 applies a magnetic field to the recording surface heated by the laser beam to the Curie temperature or higher. The direction of the magnetic field is recorded on the magneto-optical disk 1 and data recording is performed. Of course, the magnetic head 20 is moved in the disk radial direction integrally with the optical head 3 by the thread mechanism 5.
[0019]
The magneto-optical disk 1 includes not only audio data but also so-called TOC information (Table of Contents) as management data of music and the like recorded on the magneto-optical disk 1. The user TOC area is secured in a part of the TOC area so that the character information such as the song name and disc name (album title) of the song recorded by the user can be written corresponding to the song. ing.
[0020]
For inputting character information, for example, a keyboard-type character input unit 21 is also provided. For example, alphabets, hiragana, katakana, kanji, numbers, and the like can be input. When the user inputs character information by operating the character input unit 21 or the operation unit 12 during recording or the like, the character information is written in the user TOC area of the magneto-optical disk 1. At the time of reproduction, for example, when the magneto-optical disk 1 is loaded into the recording / reproducing apparatus, the information in the TOC area is read and written in the user TOC area together with the management data and the ROM character information. Since the character information is also read and taken into the RAM 15, the control unit 10 can manage various reproduction operations and display numerical values, characters, etc. on the display unit 14 based on the information in the RAM 15.
[0021]
The control unit 10 controls the recording / reproducing operation of each unit at the time of recording / reproducing, and functions as a display control unit for the display unit 14, and therefore has a configuration as shown in FIG. 2 by an internal device and software. Become.
[0022]
Reference numeral 30 denotes an A / D conversion unit that supplies operation information from the operation unit 12 to the display control unit 31 as digital data. Reference numeral 32 denotes a display data buffer which is used for display among data to be displayed (for example, character information and performance time information) among the TOC information fetched into the RAM 15 and various data supplied from the reproduction signal processing unit 7. Data (for example, playback performance progress time data by a time code or the like) is stored and supplied to the display control unit 31.
[0023]
The display control unit 31 sends the display data of characters and numerical values supplied from the display data buffer 32 to the display buffer 35 based on the input information from the operation unit 12 or the time information from the timer 34, and sends it to the liquid crystal display driver 13. Supplied and displayed on the display unit 14. In addition, by having the date and time holding unit 36 that holds the date and time, the display unit 14 can perform clock display or calendar display.
Reference numeral 33 denotes a display writing control unit which supplies character information input by the user using the character input unit 21 and the operation unit 12 to the recording signal processing unit 18 and records it in the user TOC area. Further, the input character is supplied to the display control unit 31 in order to display the written character even at the time of writing.
[0024]
A display processing method (automatic scrolling) including scroll display of character information realized in the sound recording / reproducing apparatus having the configuration of the first embodiment will be described.
Here, as the character information recorded in the TOC area of the magneto-optical disk 1 and displayed on the display unit 14, it is assumed that an album name and a song name of each song exist.
For the sake of explanation, the character information pre-recorded on the magneto-optical disk 1 as the album name or the character information written by the user is “Mariah Carey Emotions”, the first song name is “EMOTIONS”, and the second song name is “ “AND YOU DON'T REMEMBER”.
In the display control program, an album name (disc name) priority mode and a song name (track name) priority mode are prepared as display modes, which are selected by the user with the display mode key 12f.
[0025]
In the present embodiment, scroll display is executed regardless of the user's operation by the flowchart of FIG. 3 showing the processing realized by the configuration of FIG. In addition, the example of a display of the display part 14 is shown to Fig.4 (a)-(j).
[0026]
When the reproduction operation is started and the disk loading is executed (F101), for example, “1” indicating that the music to be reproduced is the first music as shown in FIG. Is displayed. That is, the control unit 10 supplies blank and “1” display data to the liquid crystal display driver 13.
[0027]
After the loading operation, when the album name and the song name of each recorded song are read as display data from the TOC area of the magneto-optical disk 1, the control unit 11 stores them in the RAM 15 (F102). First, the album name and the song name of the first song are read from the RAM 15 (F103), and both or one of them is displayed on the display unit 14 for a predetermined time (F104). For example, the album name is temporarily displayed for about 2 seconds as shown in FIG. 4B, and then the song name is displayed for about 2 seconds as shown in FIG. 4C. Here, since the displayable number of digits on the display unit 14 is 12, all 21-digit album names cannot be displayed. Therefore, the control unit 10 supplies only the first 12 digits to the liquid crystal display driver 13 as display data.
[0028]
In step F104, after one or both of the album name and the song name are displayed for a few seconds, the data set as the priority display as the display mode is displayed. That is, at this time, if the album name priority mode is set, the display data is “MARIAHCAREY EMOTIONS”, and if the song name priority mode is set, the display data is “EMOTIONS”.
For the sake of explanation, it is assumed that the system is currently in the album name priority mode.
[0029]
Here, the priority display data is “Mariah Carey Emotions”, and the number of digits (data length m) is determined (F105). The number of digits m = 21 is compared with the number n of displayable digits (= 12). If n ≧ m, all characters can be displayed as they are, and the control unit 10 displays the data on the liquid crystal display. Although it is supplied to the driver 13 and displayed on the display unit 14 (F107), since n <m in this case, all characters cannot be displayed. Therefore, the scroll display of the priority display data “Mariah Carey Emotions” is executed (F106 → F108).
[0030]
First, the control unit 10 sets the variable a to a = 1 (F108), and supplies data from the a-th digit to the {a + (n-1)}-th digit in the priority display data to the liquid crystal display driver 13 (F109). ). That is, first, the first 12 characters are output as display data and displayed on the display unit 14 as shown in FIG. Then, the display waits for several tens of milliseconds with this display (F110), and since scrolling is not completed at this time, the variable a is incremented (F111 → F112), and the process returns to step F109 to return to the ath digit to the {a + (n− 1) The data up to the digit is supplied to the liquid crystal display driver 13. That is, this time, as shown in FIG. 4E, the second to thirteenth digits of the priority display data are displayed (scrolled by one character).
[0031]
Thereafter, by repeating the loop of steps F109 to F112, scroll display of one character is executed every several tens of msec, and the display content changes as shown in FIGS. 4 (f) to (h).
[0032]
The end of this scrolling operation is, for example, when scrolling is executed until the last character is blanked for 3 characters as shown in FIG. May be set sequentially at the time when scrolling is completed until the state shown in FIG. When it is determined that the scrolling is finished, the control unit 10 continuously supplies the first 12 characters of the priority display data to the liquid crystal display driver 13 to fix and display the first 12 characters as shown in FIG. 4 (i) (F113). .
[0033]
After that, when the playback performance of the first song is completed or the performance shifts to the second song by the AMS operation, the control unit 10 reads the song name of the second song from the RAM 15 (F115 → F103) and the song name “AND YOUDON'T REMEMBER Is displayed for about 2 seconds. However, in this case, since it is 12 digits or more, only the first 12 digits are displayed as shown in FIG. Since the system is in the album name priority mode, the album title is scrolled (displayed as shown in FIGS. 4D to 4H) as described above, and then the first 12 digits of the album title are fixedly displayed (FIG. 4). (I)).
[0034]
If the display mode has been changed to the song title priority mode at this time, the song name “AND YOU DON'T REMEMBER” becomes the priority display data, which is 12 digits or more, and this is scrolled in the same manner as the above album name. After the scrolling, the first 12 digits are continuously displayed until the end of the song.
The above processing is executed until the end of reproduction (F114).
[0035]
As described above, when the number of digits of the display character is larger than the number of displayable digits, the user can accurately recognize the character information by sequentially scrolling and displaying all the characters.
[0036]
Next, step scroll processing by a user operation will be described as a second embodiment of the present invention. The configuration of the recording / reproducing apparatus and the configuration for display control in the control unit 10 are the same as those in FIGS.
[0037]
In this case, as the processing of the control unit 10 having the configuration of FIG. 2, as shown in the flowchart of FIG. 5, scroll display is executed step by step by the user's operation.
Steps F201 to F207 are the same as steps F101 to F107 in FIG.
[0038]
In this case as well, the priority display data is scroll-displayed. When the priority display data is 13 digits or more, first, the variable a is set to 1 (F208), and the top is displayed as shown in FIG. Although 12 digits are displayed (F209), the scrolling is performed after the user operates the scroll key 12d. When the user presses the scroll key 12d, the variable a is incremented (F210 → F211 → F212), and the process returns to step F209, and the control unit 10 supplies the second to thirteenth digit characters to the liquid crystal display driver 13 as display data. That is, as shown in FIG. 4E, the 2nd to 13th digit characters are displayed (scrolled by one character).
[0039]
Thereafter, similarly, every time the user presses the scroll key 12d, the display character is scrolled step by step. After the scroll end is determined, the variable a = 1 is set again, and the display returns to the initial display state (F211 → F208 → F209). That is, the display returns to the display of the first 12 characters as shown in FIG.
Further, when the user continues to operate the scroll key 12d for 5 seconds or less, for example, the variable a is set to 1, and the display returns to the display of the first 12 characters (F214 → F208 → F209).
[0040]
While the music piece is being played, the scroll command input standby state is taken in this way. However, when the music piece ends naturally or by an AMS operation, for example, when the second piece of music is entered, the second piece of song name data is read from the RAM 15 (F213). → F215 → F216 → F203) For example, after displaying the song name for about 2 seconds (F204), if the priority display data is 13 digits or more, this is similarly scrolled based on the user operation ( F205 to F214).
[0041]
In this way, by scrolling step by step by the user's operation, it is possible to display all character information when the user wants to see. This is suitable for devices that cannot be fixed to the device at all times (such as during operation).
[0042]
Next, an automatic scroll display process by a user operation will be described as a third embodiment of the present invention. In this embodiment, the configuration of the recording / reproducing apparatus and the configuration for display control in the control unit 10 are the same as those in FIG. 1 and FIG.
[0043]
In this case, as the processing of the control unit 10 having the configuration of FIG. 2, as shown in the flowchart of FIG. 6, automatic scroll display is executed by a user operation.
Steps F301 to F307 are the same as steps F101 to F107 in FIG.
[0044]
Also in this case, the priority display data can be scroll-displayed. When the priority display data is 13 digits or more, first, the variable a = 1 is set (F308), as shown in FIG. The first 12 digits are displayed (F309), but the scrolling is performed after the user operates the scroll key 12d. When the user presses the scroll key 12d, the variable a is incremented, and the control unit 10 supplies the a-th to a + (n−1) -digit characters as display data to the liquid crystal display driver 13 (F310 → F311 → F312). . That is, as shown in FIG. 4E, the 2nd to 13th digit characters are displayed (scrolled by one character).
[0045]
Thereafter, for example, the variable a is incremented every 0.5 seconds, and the display character is scrolled step by step (F313 → F314 → F311 → F312). After the scrolling is determined to end, the variable a = 1 again. The display returns to the initial display state (F314 → F308 → F309). That is, the display returns to the display of the first 12 characters as shown in FIG.
[0046]
While the music piece is being played, the scroll command input standby state is taken in this way. However, when the music piece ends naturally or by an AMS operation, for example, when the second piece of music is entered, the second piece of song name data is read from the RAM 15 (F315). → F316 → F317 → F303) For example, after displaying for about 2 seconds (F304), if the priority display data is 13 digits or more, the scroll operation is automatically executed step by step with the user operation as a trigger. (F305 to F314).
[0047]
This embodiment can also display all character information when the user wants to see by being scrolled by the user's operation, and is suitable for, for example, an on-vehicle sound reproducing device.
[0048]
Next, a fourth embodiment of the present invention will be described. In this embodiment, when the control unit 10 performs the automatic scroll display at every predetermined timing as in the first and third embodiments, the scroll speed is set by the number of characters or the character type of the display data or the user operation. It is something to change.
Since the configuration of the recording / reproducing apparatus is the same as that of FIG. 1, description thereof is omitted.
[0049]
In the case of this embodiment, the display control functional block in the control unit 10 is as shown in FIG. As in FIG. 2, the A / D converter 30, display controller 31, display data buffer 32, display write controller 33, timer 34, display buffer 35, and date / time holding unit 36 are included. Scroll display is possible as in the third embodiment.
[0050]
Further, a character number counter 37 for counting the number of characters of the display data supplied from the display data buffer 32 to the display control unit 31 is provided, and a comparison reference generation unit for generating a comparison reference value N of the counted number of characters. 38 is provided. A comparison unit 39 that compares the count output C from the character number counter 37 with the comparison reference value N from the comparison reference generation unit 38 is provided, and the comparison result is input to the display control unit 31.
[0051]
In addition, for the display data supplied from the display data buffer 32 to the display control unit 31, a display data determination unit 40 that determines the type of characters of the display data, for example, the type of English characters, katakana, hiragana, kanji, numbers, and the like. The determination result information by the display data determination unit 40 is input to the display control unit 31.
[0052]
That is, in this embodiment, the scrolling speed is changed in accordance with the number of characters, the character type, or the user operation by the jog dial 12g or the AMS key 12c of the operation unit 12 to make the display contents easy to read for the user.
[0053]
The scrolling operation itself is executed one digit at a predetermined time (automatic scrolling) as in the first or third embodiment, and redundant explanation is avoided. In this embodiment, the display control unit 31 performs a process of setting a time interval for the scroll operation for each digit, and this is shown in the flowchart of FIG. 8 as a scroll speed correction process. Needless to say, if the number of characters to be displayed is within 12 digits in the case of the present embodiment, the following processing is not executed.
[0054]
First, when the display control unit 31 captures the discrimination information made by the display data discrimination unit 40 for the display data, whether or not it matches the language character (the destination character) of the region where the recording / reproducing apparatus is used. Is determined (F401). The language character information of the region used is set in advance in the operation program of the display control means 31 or the non-volatile memory means according to the destination (sales place) at the time of shipment, etc., and is used in, for example, Japan. Kanji, hiragana, and katakana. In addition, English characters correspond to models used in the United States, the United Kingdom, and the like.
If the display data corresponds to these destination characters, the scroll speed is set to a high speed by a predetermined level (F402), and if it does not match, the scroll speed is set to a low speed by a predetermined level (F403).
[0055]
For example, for Japanese display, even if the scrolling speed is high to some extent, there is no hindrance to the interpretation of the display data. On the contrary, the faster scrolling speed is often easier to read, and all characters can be displayed quickly. It is. However, it is easier to read when the scrolling speed is lower than alphabet letters. Thus, the scrolling speed is adjusted according to the character type of the display data in this way.
[0056]
Next, the display control unit takes in the comparison information of the count value C and the comparison reference value N for the number of display characters for the display data from the comparison unit 39, and determines the extent of the display data (F404). If C> N, the scroll speed is set to a high speed by a predetermined bell (F405), and if C ≦ N, the predetermined speed is set to a low speed (F406). For example, when the display unit 14 has 12 digits, the comparison reference value N is set to “16”.
[0057]
In other words, if the display data is about 13 to 16 digits, even if it is slowly scrolled, it will not be a time for the user to feel that all characters are displayed slowly. Because it takes too much time and feels frustrating, try to scroll fast. For example, high speed scrolling in this case should be about 1.3 times faster than low speed scrolling.
[0058]
Of course, the comparison reference value N may be other than N = 17. Furthermore, a plurality of comparison reference values N may be set in stages, and the speed may be set more finely according to the number of characters. Further, if the user can change the setting of the comparison reference value N, it can be adapted to the user's preference.
Further, the comparison reference generation unit 38 and the comparison unit 39 may be omitted, and the count value C of the character number counter 37 may be directly discriminated so that the speed is variably set in units of one character.
[0059]
Next, it is determined about the scroll speed setting that can be performed in advance by the user (F407). The user can set a preferred scroll speed using the operation unit 12, and the set value is stored in the display control unit 31 in, for example, a RAM having a backup power source or a non-volatile memory means. Alternatively, if the set speed is about two or several steps, the speed may be determined by the position of a slide switch provided in the device housing.
[0060]
Based on the scroll speed information set by the user, the display control means 31 sets the scroll speed to a high speed by a predetermined bell (F408), or sets it to a low speed by a predetermined level (F409). Of course, the user does not set anything, and the speed setting is not changed if it is in the standard speed setting state (F407 → F410).
[0061]
Finally, the display control unit 31 determines whether or not the real-time scroll speed adjustment is performed in the operation unit 12 (F410). For example, it is determined whether or not the user has rotated the jog dial 12g in the high speed direction or the low speed direction during the scroll operation. If the jog dial 12g is rotated in the high speed direction, the scroll speed is increased by a predetermined bell according to the rotation operation angle. (F411), and if the jog dial 12g is rotated in the low speed direction, the predetermined bell is set at a low speed according to the rotation operation angle (F412). As a result, scrolling is executed at a user's preferred speed. The speed adjustment operation may be performed using a key other than the jog dial 12g, such as the AMS key 12c.
[0062]
As described above, the speed adjustment is set according to the four types of speed adjustment items according to the character type, the number of characters, the user setting, and the user operation, and the speed (time interval) adjusted finally is set in the state shown in FIGS. Perform the following process. That is, the standby time in step F110 in FIG. 3 or step F313 in FIG. 6 is variably controlled.
Here, the speed adjustment amount at each stage (the speed increase level at steps F402, F405, F408, and F411 and the speed decrease level at steps F403, F406, F409, and F412) may be equal to each other, or according to the speed adjustment item. It is possible to make it non-uniform by weighting.
[0063]
By variably controlling the scroll speed in this way, there is an effect that the scroll can be executed according to the user's preference, or at a speed at which the displayed characters are most easily read or at a comfortable speed.
[0064]
By the way, in this embodiment, the scroll speed adjustment is performed corresponding to the four stages of speed adjustment items, but the speed adjustment is executed by only one of these, or two or three selected speeds are selected. You may make it perform scroll speed adjustment corresponding to an adjustment item. Further, the user may arbitrarily select the speed adjustment item.
[0065]
Next, a fifth embodiment of the present invention will be described. In the embodiment described above, the scroll operation is performed in response to the case where the number of digits of the character information to be displayed is larger than the number of displayable digits. However, in this embodiment, the scroll is performed regardless of the number of digits of the character information. By doing this, a dynamic display is always performed, and the user's interest in the display contents can be attracted. The configuration of the recording / reproducing apparatus and the configuration of the control unit 10 are the same as those shown in FIGS.
[0066]
The processing of the control unit 10 in the case of this embodiment is shown in FIG. Note that FIG. 10 shows a display operation example in which the scrolled characters are “EMOTIONS” which is the title of the music.
In the reproducing operation, when the disc is loaded and the display data is read from the TOC area into the RAM 15 (F501, F502), the control unit 10 reads the display data, for example, the character information “EMOTIONS” from the RAM 15 and loads it into the display data buffer 32 ( F503). The captured display data is referred to as display data DD for explanation. In this case, “EMOTIONS” becomes the display data DD as shown in FIG.
[0067]
In the display control unit 31, blank data for display digits (n digits, n = 12) is added before the display data DD, and the display data S is displayed as shown in FIG._DDIs generated (F504). Therefore, the 12-digit blank and the character “EMOTIONS” are displayed on the display data S._DDIt is said.
[0068]
The variable a is set to a = 1 (F505), and first the display data S_DDAmong them, the data from the ath to the (a-1) th (n−1) th digit is supplied to the liquid crystal display driver 13 through the display buffer 35. That is, a blank display is made as shown in FIG. 10C (F506).
Thereafter, the variable a is incremented every several tens of milliseconds (F507) (F509), and by returning to step F506, scroll display is performed as shown in FIGS.
[0069]
The end of the scrolling is set, for example, at the time when the scrolling is completed up to the stage of FIG. 10 (g), or when the scrolling is completed up to the stage of FIG. 10 (h), and the scroll processing of steps F506 to F509 is performed. When completed, the display data DD is switched to display from the first digit to the nth digit (the twelfth digit) (F508 → F510). Accordingly, in this case, the display of FIG.
Thereafter, a scroll display process or the like is executed in accordance with the end of reproduction or a change in reproduced music (or change in display content, etc.) (F511, F512).
[0070]
By the way, in this flowchart, the setting of the priority display data is not mentioned, but it is conceivable that the scroll display is performed only for the priority display data or for all the character data to be displayed. . Furthermore, it is possible to display an interesting display by scrolling the numerical display such as the reproduction time, time, and track number regardless of the number of digits.
Further, the scroll start timing may be based on a user operation as in the third embodiment. Furthermore, step scrolling according to user operations may be performed as in the second embodiment.
[0071]
The scroll processing method that can be employed in the present invention is not limited to the above-described various embodiments, and can be considered more variously. For example, in the first, third, and fifth embodiments, the automatic scrolling is repeated until the end of the music, and the character data that is scrolled in the first to third embodiments is not limited to the priority display data. All of the displayed character data whose number of digits is larger than the number of displayable digits may be scrolled.
[0072]
Furthermore, the first to third embodiments may be combined, and once automatic scrolling is finished, step scrolling or automatic scrolling may be performed by a user operation.
Further, in scrolling by a user operation, the second, third (or fifth) embodiments described above are adopted in parallel, and step scrolling is executed with one press of the scroll key 12d, and the scroll key 12d. For example, when the button is continuously pressed for 2 seconds or longer, it is possible to execute automatic scrolling thereafter. Of course, a separate operation key may be provided.
[0073]
When automatic scroll control is performed as in the first, third, and fifth embodiments, the scroll speed adjustment method according to the fourth embodiment or a modification process thereof can be employed.
Of course, various scroll control methods can be combined in addition to these.
[0074]
Note that the recording / reproducing apparatus corresponding to the magneto-optical disk has been described as the acoustic reproducing apparatus, but the present invention is not limited to this, and the recording / reproducing apparatus using an optical disk, a digital audio tape, or the like as a recording medium, or a reproduction-only apparatus, etc. It goes without saying that is also applicable.
[0075]
【The invention's effect】
As described above, the sound reproducing apparatus of the present invention can scroll and display data to be displayed at the time of audio reproduction, that is, song name information and album name information. it can.
[0076]
In particular, the display control means can scroll and display the character information when the number of digits of the character information read from the recording medium and displayed on the display unit is larger than the number of displayable digits on the display unit. This configuration has the advantage that all characters can be displayed regardless of the data length of the display character information, and has the advantage that the display area of the display unit is not unnecessarily enlarged. Furthermore, the scroll display is executed based on the user's operation, so that there is an effect that all characters can be presented to the user at an optimal time.
Furthermore, by displaying the song name information and the album name information in accordance with the setting of the priority mode, a display desirable for the user becomes possible.
[Brief description of the drawings]
FIG. 1 is a block diagram of a main part of a sound reproducing apparatus as an embodiment corresponding to a magneto-optical disk of the present invention.
FIG. 2 is a block diagram of a display control system provided in the control unit of the first to third embodiments.
FIG. 3 is a flowchart of a scroll processing method according to the first embodiment;
FIG. 4 is an explanatory diagram of a display operation according to the first to third embodiments.
FIG. 5 is a flowchart of a scroll processing method according to the second embodiment;
FIG. 6 is a flowchart of a scroll processing method according to a third embodiment.
FIG. 7 is a block diagram of a display control system provided in a control unit according to a fourth embodiment.
FIG. 8 is a flowchart of a scroll speed correction process in the fourth embodiment.
FIG. 9 is a flowchart of a scroll processing method according to a fifth embodiment;
FIG. 10 is an explanatory diagram of a scroll display operation according to a fifth embodiment.
[Explanation of symbols]
1 magneto-optical disk, 3 optical head, 10 control unit, 12 key operation unit, 12d scroll key, 12f display mode key, 12g jog dial, 13 liquid crystal display driver, 14 display unit, 15 RAM, 21 character input unit, 31 display control 32, display data buffer, 33 display write control unit, 35 display buffer, 37 character counter, 38 comparison reference generation unit, 39 comparison unit, 40 display data discrimination unit

Claims (3)

Audio data and management data corresponding to the audio data are recorded, and the management data includes album name information as character information and music piece information corresponding to the music as the audio data In an audio reproduction device for reproducing
Reading means capable of reading audio data and management data from the recording medium;
Display means for displaying the management data read from the reading means;
At least control is performed to display the character information as album name information or song name information in the management data read by the reading means on the display means at a timing corresponding to the output of the audio data, and is displayed on the display means. and the scroll display control means for one digit at a time by sequentially scrolled for each input control to display the scroll command signals by said character information external operation is possible with,
A sound reproducing apparatus comprising: Audio data and management data corresponding to the audio data are recorded, and the management data includes album name information as character information and music piece information corresponding to the music as the audio data In an audio reproduction device for reproducing
Reading means capable of reading audio data and management data from the recording medium;
Display means for displaying the management data read from the reading means;
At least control is performed to display the character information as album name information or song name information in the management data read by the reading means on the display means at a timing corresponding to the output of the audio data, and is displayed on the display means. A scroll display control means capable of controlling the character information to be sequentially scrolled and displayed one digit at a set predetermined time after inputting a scroll command signal by an external operation ;
A sound reproducing apparatus comprising: Audio data and management data corresponding to the audio data are recorded, and the management data includes album name information as character information and music piece information corresponding to the music as the audio data In an audio reproduction device for reproducing
Reading means capable of reading audio data and management data from the recording medium;
Display means for displaying the management data read from the reading means;
Control is performed to display at least the character information as album name information or song name information in the management data read by the reading means on the display means at a timing corresponding to the output of audio data, and the display of the song name information In addition, priority mode setting means for giving priority to either one of the album name information display is provided, the song name information display according to the setting by the priority mode setting means, and the album name information display. Scroll display control means for performing scroll display for one of
A sound reproducing apparatus comprising:

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