JPS62279585A - Portable type compact disk player - Google Patents

Abstract

PURPOSE:To effectively utilize information except music and to permit the use without being restricted by places and time by supplying display information in accordance with the information except the music of a player part where a reading out operation is controlled and the input information of an input means. CONSTITUTION:The player part 17 reads out digital information from a disk 10, extracts the music information and the information except the music, respectively, converts the same to an analog sound signal and outputs the signal. The input means 3 of a see-through type is provided in superposition on the display surface of a display means 2. A control means 21 supplies the display information to the means 2 in accordance with the information except the music information supplied by the player part 17 and the input information supplied by the means 3 and controls the reading out operation of the player part 17. The information except the music information is thereby effectively utilized and the disc player is usable for learning languages, etc., without being limited by places and time.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention The present invention is a method for making information other than music information (audio data) recorded on a CD (compact disc), such as audio subcode, effective both indoors and outdoors. The present invention relates to a portable compact disc player with a display function that can be used.

"Conventional technology" Traditionally, most CD players used for music playback were stationary, but in recent years, they have been made smaller and lighter.
Portable CD players that can be used outdoors with battery power have been developed and commercialized.

On the other hand, CD players have until now been mainly used for playing music, but CDs contain not only audio data but also code data (information encoded with characters, numbers, programs, etc.).
By recording this, it becomes possible to play back text and the like at the same time as music. For example, if the lyrics are displayed at the same time as the music is played, it could be used as a so-called CD karaoke. In addition, for music playback, all <A11 Applications 71. Therefore, it is also being considered to use the CD as a so-called CD-ROM, in which the CD is used as a memory exclusively for deleting code data.

Here, in order to record code data together with audio data on a music CD, one user's bit is used. This user's bit is provided along with the area for recording audio data, and is a part of the bit array read out from the CD! The first 8 bits of the frame are allocated. Each bit of the 8-bit user's bit is assigned a channel name of P, Q, R, S, T, U, V, W, and each channel has 98 bits.
Each frame is processed as a unit. The P channel indicates the presence or absence of music, and the Q channel is a control bit that indicates an absolute address, song number, etc. Further, eight pieces of code data such as character information are recorded in the R-W channel.

Furthermore, in a CD-ROM, code data is recorded in the audio data area of the CD instead of audio data.

In order to avoid confusion hereinafter, the code data recorded in the user's password of the music CD will be particularly referred to as the audio subcode to distinguish it from the code data recorded in the audio data area of the CD-flOM.

"Problem to be Solved by the Invention" By the way, audio subcodes are recorded along with audio data on music CDs, but in conventional portable CD players, this audio subcode is not used at all. It had not been done. In other words, music CD
If character information is recorded as an audio subcode on a CD player, in order to use this audio subcode, a display device capable of displaying characters, such as a television, must be connected to the CD player. When using a 1" compact disc player outdoors, the audio subcode cannot be used effectively.For the same reason, conventional portable CD players do not use the CDCD-4O5.
It was not possible to use the self-recorded code data for full use.

This invention was made in view of the above-mentioned circumstances, so CD
An object of the present invention is to provide a portable compact disc player with a display function that allows information other than music information recorded on the disc, such as audio subcodes, to be effectively used both indoors and outdoors.

``An unsuccessful means to solve the problem'' This invention reads digital information from a disk,
A player section that extracts music information and information other than music information from this read digital information, converts the extracted music information into analog audio signals, and outputs the analog audio signals. a display means for displaying, a see-through input means provided superimposed on the display surface of the display means, information other than music information supplied from the player section, and input information supplied from the input means. The apparatus is characterized by comprising a control means for supplying display information to the display means and controlling a reading operation of the player section based on the above.

Music information is extracted from the digital information read from the disc, this music information is converted to an analog audio signal and output, and at the same time information other than music information is extracted from the digital information read from the disc. Based on this extracted information, characters, symbols, etc. are displayed by the display means, and by operating a see-through type input means placed on the display surface of the display means, the player part can be read out. The operations are controlled, and as a result, information other than music information recorded on the disc can be used effectively both indoors and outdoors.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the external configuration of an embodiment of the present invention;
FIG. 2 is a block diagram showing the electrical configuration of the same embodiment.

In Figure 1, ■ is the main body of the portable CD player, 2 is provided on the top of the case of the main body 1, and the letters and abbreviations are
A see-through type finger touch input device 3 is superimposed and pasted on the display surface of this LCD 2. The see-through type finger touch input device 3 is in the form of a transparent film, and when a part of its coordinate detection surface is pressed with a finger, the coordinate values of that part are detected. Further, 4 is an audio output terminal that outputs an analog audio signal, and 5 is a headphone connected to the audio output terminal 4.

Next, in FIG. 2, 10 is a CD, II is a spindle motor that rotationally drives the CDl0, 12 is an optical pickup unit that reads digital information recorded by pits (concave portions) on the CDl0, and a semiconductor laser and a lens. , an optical system consisting of an optical sensor, a focus adjustment mechanism, etc., and a feeding mechanism that moves this optical system in the radial direction of the CD IO. 13 is a decoder that extracts audio data and audio subcode or code data from the digital signal supplied from the first pickup unit 12; 14 is a D/A that converts the audio data = l supplied from the decoder 13 into an analog audio signal. (digital/analog) converter, 15
is an amplifier that amplifies the analog audio signal supplied from the D/A converter 14, and the analog audio signal amplified by this amplifier 15 is supplied to the headphones 5 via the audio output terminal 4. ! A CD controller 6 controls the rotation of the spindle motor 11 based on a control signal supplied from a control section 20, which will be described later, and performs tracking control, focus control, etc. of the optical pickup unit [2. The player section 17 is configured as described above.

On the other hand, 20 C:#Iatll 'T:S'), CP
A U (central processing unit) 21, a ROM (read only memory) 22 in which programs used by the CPU 21 are stored, an r (AM (random access memory)) 23 for temporarily holding data, and a display supplied from the CPU 21. It is composed of an LCD controller 24 that displays characters, symbols, etc. on the CD 2 based on the data.The CPU 21 is supplied with audio subcodes or code data from the decoder 13, and a see-through finger touch input device. 3 is operated, input data is supplied from this transparent finger touch input device 3.
The U21 supplies the CD controller 16 with control signals such as track information for specifying the successive start track, and also supplies display data to the LCD controller 24. Moreover, two types of programs corresponding to a normal music CD and a CD-110M are written in the ROM 22 in advance.

Next, the operation of the portable CD player having the above-mentioned configuration when used for practicing English conversation will be explained with reference to FIG. In this case, three pieces of English conversation audio information are recorded in the audio data area of CDl0, and English character information corresponding to the English conversation is recorded as the audio subcode. Hereinafter, such a CDl0 will be referred to as an English conversation practice CDl0.

CD10 for English conversation practice CD player body 1This CD
l0+,: The recorded digital information is read out by the optical pickup unit [2, the read out digital information is supplied to the decoder-I3, and the decoder-13 converts the digital information into audio data and audio subcode. or extracted. Decoder-1
The audio data extracted by 3 is converted into an analog audio signal by a D/A converter 14, and the converted analog audio signal is further amplified by an amplifier 15, and the analog audio signal amplified by this amplifier 15 is output as an audio output. The signal is supplied to the headphones 5 via the terminal 4. As a result, the audio of the English conversation recorded in the audio data area of CDl0 is emitted from the headphones 5.

In parallel with this audio reproduction operation, the CPU 2+ operates based on the flowchart shown in FIG.

First, in step SP1, it is determined whether or not it is a music CD. In this case, the CPU 21 uses the audio subcode system supplied from the decoder 13.
/Ha part *, 6 →・ soup zei 7, pu 4
・r de m ρ l) de , Eisu Zhan＼Cl1-R
To determine whether it is an OM, a flag indicating whether it is a music CD or a CD-ROM is set on the Q channel of the user's bit mentioned above, and the two are distinguished by this flag. In this step SP,
When it is determined that the English conversation practice CD10 is a music CD, the next step SP! , and various operation buttons are displayed on the LCD 2. In this case, various operation buttons B and -84 are displayed on the LCD 2, as shown, for example, to the left of step SP in FIG.

Next, in step SP3, it is determined whether or not there is display data as an audio subcode. If there is display data, proceed to the next step SP, and if there is no display data, proceed to step SP. Proceed to SPs. In step SP4, the LCD
2, characters are displayed based on the display data obtained as the audio subcode. In this case, as shown on the left side of step SP4 in FIG.
In addition to ~B4, English sentences E and E are displayed. These English sentences E1 and E are displayed in response to the English conversation sounds emitted from the headphones 5.

Next, in step SPs, it is determined whether or not the transparent finger touch input device 3 has been pressed, and if it is determined that it has been pressed, the process proceeds to the next step SP, and if it is determined that it has not been pressed. If so, return to step S Pt.

In step SP a, the display contents of the LCI) 2 are compared and verified with the input data supplied from the see-through finger touch input device 3, and a control signal is supplied to the player section 17 based on the comparison result. do. For example, operation button I3 displayed on LCD2. When the (stop button) part is pressed, this display content is compared with the input data corresponding to the coordinate values of the pressed part supplied from the see-through finger touch input device 3, and the pressed part is checked. A control signal (stop command) corresponding to the operation button B is supplied to the player section 17. Similarly, when the part where operation button B is displayed is pressed, a playback start command is issued, and when the part where operation button B3 is displayed and 5 is pressed, a fast rewind command is issued. When the portion where the operation button B4 is displayed is pressed, a fast forward command is supplied to the player section I7 as a control signal. As a result, by pressing the operation buttons B, -8, displayed on the LCD 2 with a finger, it is possible to perform operations similar to conventional operations in a so-called interactive format, as if interacting with a CD player.

Then, step SP7 following the above step SP a
In step S P t , it is determined whether or not to end the reproduction operation, and if it is determined not to end, the process returns to step S P t.

As a result, at the same time that the audio of the English conversation recorded in the audio data area of the CD10 for English conversation practice is emitted from the headphone 5, the English text corresponding to the English conversation recorded as the audio subcode on the CD10 is transmitted to the LC.
Displayed by D2.

This makes it possible to practice English conversation both indoors and outdoors without being constrained by location or time.

Similarly, if you record the lyrics corresponding to the music recorded in the audio data area of CD10 as audio subcodes and display the lyrics on LCD2 at the same time as the music is played, it can be used as a so-called CD karaoke. I can do Zuroko. Furthermore, it can also be used as a dictionary with audio.

Next, we installed two portable CD players with CD-
The operation when used for reading n0M data and processing the read data will be described. In this case, it is assumed that a program or code data that can be processed by the CPU 21 is recorded in the audio data area of CD10 for CD-40M.

First, set the CDl0 for CD-n OM into the CD player body l, and start playing the CDl0.
The digital information recorded on the CD10 is read by the optical pickup unit 12, the read digital information is supplied to the decoder 13, and the decoder 13 extracts code data from the digital information.

Thereafter, the CPU2+ operates based on the flowchart shown in FIG.

First, in step SP, it is determined whether or not it is a music CD. In this case, since it is not, the process advances to step SP. In this step SP, code data (program) supplied from the decoder 13 is taken in,
The data is transferred to a predetermined storage area of the RAM 23. Such program reading from CD10 and RAM2
3, the control of the CPU 21 returns to RA.
Moved to the program in M23 (step 5PIl),
Thereafter, the CPU 21 executes the program transferred to the RAM 23 (step sp+o).

Here, an example of the program transferred into the RAM 23 mentioned above is shown in a flowchart as shown in FIG.

First, in step S1, it is determined whether or not there is data to be read from CDl0. If there is data to be read, the process proceeds to the next step S; otherwise, the process proceeds to step S4. In step S, a control signal is supplied to the player section 17 for specifying a track to start reading, etc., and in the next step S3, the data read from CD10 and extracted by the decoder 13 is supplied to the player section 17. It is taken in and stored in flAM23. Next, in step S4, predetermined processing (eg, data search processing, etc.) is executed based on the captured data. Next, in step S, the processing result of step S4 is displayed on the LCD 2 using characters and symbols. In this case, for example, a display as shown on the right side of step S5 in FIG. 4 is made. Next, in step Sll, it is determined whether or not the transparent finger touch input device 3 has been pressed, and further, in step S7
, the content displayed on the LCD 2 is compared and verified with the input data supplied from the transparent finger touch input device 3, and a control signal is supplied to the player section 17 based on the comparison result. And finally, step S8
In step S1, it is determined whether or not the playback operation has ended, and if it is determined not to, the process returns to step S1.

With the above, portable CD players can be used both indoors and outdoors.
D-r (can be used for reading data from OM and for processing read data.

In addition, in one embodiment mentioned above, a music CD and a CD
-It was configured to be compatible with both ROMs, but it was configured to be compatible only with music CDs, and it was configured to support both music playback and
Of course, you can use it for language practice, karaoke, etc.

"Effects of the Invention" As explained above, according to the present invention, digital information is read from a disc, music information and information other than music information are extracted from the read digital information, and the extracted music information is converted into an analog a player section that converts the signal into an audio signal and outputs it; a display means provided on the outer surface of the main case for displaying characters, symbols, etc.; and information other than music information supplied from the player section on the display surface of the display means. Based on the input information supplied from the header input means, display information is supplied to the display means, and n:i
Since the disc is equipped with a control means for controlling the reading operation of the player section, information other than music information recorded on the disc, such as subcode data, can be used for indoor and outdoor purposes. It can be used for language practice or karaoke, without being restricted by place or time, and can also be used to read data from CD-ROMs.
It can also be used for processing read data.

In addition, since the display means and the see-through type input means are provided in a superimposed manner, for example, by hiding the operation buttons on the display means, operations such as the reading operation of the player section can be performed in a so-called interactive manner. In addition, since there is no need to provide a separate operation button (1.
D player, and the increase in external dimensions and weight due to the addition of a display function can be minimized.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external configuration of an embodiment of the present invention;
Figure 2 is a block diagram showing the electrical configuration of the same embodiment;
The figure is a flowchart showing the operation of the same embodiment, and FIG. 4 is a flowchart showing an example of a program stored in the RAM 23 in the same embodiment. 1... Portable CD player body, 2...
LCD (display means), 3... see-through type finger touch input means (input means),
5...Headphones, IO...CD1 ■2...Optical pickup unit, 13...
・Decoder, 14...D/A, converter, 15...
Amplifier, I6...CD controller, I7...Player section, 20...Control section, 21...CPU. 22...r(OM. 23...RAM. 24...LCD controller.

Claims (1)

[Claims] A player section that reads digital information from the disc, extracts music information and non-music information from the read digital information, converts the extracted music information into an analog audio signal, and outputs it; a display means for displaying characters, symbols, etc.; a see-through input means provided superimposed on the display surface of the display means; and information other than music information supplied from the player section and the input means. 1. A portable compact disc player comprising: control means for supplying display information to said display means based on input information supplied from said display means, and for controlling a reading operation of said player section.