JPH04263183A - Acoustic reproduceing apparatus - Google Patents

Abstract

PURPOSE:To easily designate and operate a desired recording medium at a reproduceing apparatus in which a recording medium can be selected and replayed alternatively from loaded recording media. CONSTITUTION:At least the following are provided: recording-medium distinction means 60, 15 which can distinguish and store nomenclature data stored in advance regarding individual recording media which are loaded currently in a reproduceing apparatus 10; and display control means 60, 54 which can look and display, at a display part 50, the designation data which are distinguished and stored by the recording medium distinction means 60, 15 regarding the individual recording media which are loaded currently in the reproduceing apparatus 10.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio reproducing apparatus which can load a plurality of compact discs (hereinafter referred to as CDs) as recording media and selectively reproduce the discs.

0002

[Background Art] Several to ten or more predetermined recording media are
2. Description of the Related Art There is an audio reproducing device that can be housed in one disk magazine, automatically select one recording medium from within the magazine, and perform a reproducing operation. For example, about 10 CDs
When a CD is stored in a disc magazine and the magazine is attached to a playback device, the playback device can select a predetermined CD in the magazine and send it to the playback mechanism based on the user's operation or program to perform playback operations. A CD player with a so-called autochanger function is known.

[0003] With such an autochanger function,
For example, when a user finishes listening to a certain CD and wants to listen to another CD, the user can automatically select the desired CD from the disc magazine by simply pressing a key, without having to bother to change the CD. It is very convenient because it is attached to a playback mechanism and played back, and is especially suitable as a car-mounted player. Of course, there are also known devices in which CDs and songs are automatically selected and played in sequence based on a preset program.

0004

[Problems to be Solved by the Invention] However, in such a player with an autochanger function, the selection of the CD itself in the disc magazine is normally done by
This is done based on the number assigned to the D loading section. For example, a disk magazine that can load 10 CDs has loading position numbers 1 to 10 assigned to its CD loading section, and if the user selects disk number "6" by key operation, it will be placed in the loading position. This means that the CD loaded in the sixth CD loading section with the number "6" has been designated, and this CD is taken out from the disc magazine and played. Therefore, unless the user remembers which CD is loaded in which position in the disc magazine, he or she cannot immediately play the desired CD.
If you do not remember it, try playing it in order from disc number "1" to find it, or take out the disc magazine from the playback unit and find the disc number and number.
It is necessary to perform very complicated operations such as visually confirming whether the cartridge is loaded, reloading it, and reproducing it, resulting in extremely poor operability.

[0005]

[Means for Solving the Problems] In view of the above problems, the present invention allows a user to easily recognize the recording medium number (loading position number) for each loaded recording medium, and to select the desired recording. This makes it possible to easily reproduce media. For this purpose, a playback device section that can selectively select and play back a predetermined recording medium from a plurality of loaded recording media, a display section that performs a predetermined display operation, a playback device section and a display section. The sound reproducing apparatus is configured to have a control means for controlling the operation of the sound reproducing apparatus, and in particular, the control means is configured to determine name data registered in advance for each recording medium currently loaded in the reproducing apparatus section. a recording medium determining means capable of storing data;
Display control means capable of displaying a list of each name data discriminated and stored by the recording medium discriminating means in association with the recording medium number on the display section for each of the recording media currently loaded in the playback device section; At least it has been formed.

[0006]

[Operation] For each recording medium that is currently loaded in the disk magazine and taken into the playback unit and is in a playable state, the name data registered in advance is determined, and this is listed in order of the recording medium number. If it can be displayed, the user can check which recording medium is loaded and what kind of content is loaded in the disk magazine, and the user can specify the recording medium number based on the list display. You will be able to perform the desired operations.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows, as an embodiment of the present invention, an example of the overall configuration of a component type sound reproducing apparatus suitable for use in a vehicle, for example. Reference numeral 10 denotes a CD player unit which is equipped with an optical head and plays CDs, and which selects a desired CD from the disc magazine 11 by installing a disc magazine 11 into which 10 CDs can be loaded. It has a so-called autochanger function that allows it to be automatically taken out and delivered to the optical head section.

Further, 20 is a tuner unit that receives FM and AM broadcasting, and 30 is a DSP (digital signal processor) that can perform processing such as surround effects and equalization on digital audio signals. A power amplifier unit converts an audio signal into L and R analog audio signals and amplifies the same, and 40 represents a speaker unit.

Reference numeral 50 denotes a display unit equipped with a liquid crystal display screen 51 provided on a panel near the driver's seat of the car, for example, and the front panel includes the liquid crystal display screen 51 and a display unit that allows the user to operate the sound reproduction device. An infrared light receiving section 53 is provided so that the user can perform operations using a remote commander 70 that outputs command signals using infrared rays.

60 is a CPU 61, a work RAM 62,
A microcomputer-based control unit having a program ROM 63 is shown, and this control unit 60 is mounted on each of the CD player unit 10, tuner unit 20, power amplifier unit 30, and display unit 50 via bus line B. A control microcomputer (CP to be described later)
It controls the entire system by sending commands to each unit based on the user's operations and operating programs.

Note that when the power amplifier unit 30 is equipped with a selector circuit section that can switch the input source, the audio signal output from the CD player unit 10 and tuner unit 20 is directly connected to the power amplifier unit 30. For example, a selector circuit may be added to the control unit 60 and the audio signals output from the CD player unit 10 and the tuner unit 20 may be input. may be alternatively supplied to the power amplifier unit 30 via the control unit 60. In addition, the transmission of audio signals between each unit can be performed using digital signals or analog signals, and depending on the transmission method adopted, each unit may have an A/D converter circuit, a D/A converter circuit, a selector, etc. The presence or absence of circuits, the positions of the circuits, the contents of the signal processing circuits, etc. will be slightly different. Of course, the CD player unit 10 may be provided with an analog output terminal and a digital output terminal so that the user can select the transmission method. As described above, the system configuration according to the present invention is not limited to the audio signal circuit and the transmission system between its units, and since it is not directly related to the gist of the present invention, it will not be described in detail.

CD player unit 1 in this embodiment
0 is configured as shown in FIG. 2, for example. The disc magazine 11 is equipped with 10 CD loading sections, and the entire disc magazine can be inserted into and removed from the CD player unit 10. This allows the user to load any 10 CDs into the CD player unit 10 at once. This means that it can be loaded into. 12 is a disc changer section;
When a CD is loaded in the disc magazine 11,
When installed in the player unit 10, take out the CD from a predetermined CD loading section of the disc magazine 11,
The operation of loading the CD into the player section 13 having the optical head device and the operation of storing the CD loaded in the player section 13 into the original CD loading section are performed.

When a CD is mounted on the player section 13 and a playback operation is performed, the playback signal obtained by the optical head is supplied to the signal processing circuit section 14, where it is converted into digital or analog audio signals (L, R). At the same time, focus, tracking, and spindle servo signals are generated and fed back to the player section 13. In addition, the total number of songs recorded on the CD (total number of tracks), the total playing time (the last time of the final song, code value),
Control data such as the time code value at the start of each song and the time code obtained along with the audio information playback operation is controlled by the CP.
Supplied to U15.

The CPU 15 is connected to a control unit 60 via a bus B, and controls the overall operation of the CD player unit 10 based on commands from the control unit 60. That is, management of the CDs loaded in the 10 CD loading units of the disc magazine 11, control of the disc loading operation to the player unit 13 by the disc changer unit 12, and control of the disc loading operation to the player unit 13.
It controls playback operations, seek operations, etc. Data and operation programs necessary for control operations are stored in ROM.
It is held at 16.

17, the CPU 15 is connected to the disk magazine 1.
This is a RAM that stores the TOC information of each CD in association with a name arbitrarily set by the user through a name registration operation, which will be described later, in order to identify the CD loaded in the CD. It has a capacity capable of storing predetermined TOC information and names in association with each other for about 120 CDs. Furthermore, the information registered in the RAM 17 is retained by a backup battery 19 even when the power is turned off. 18, the disk magazine 11 is created by the list creation operation described later.
This is a RAM for storing list data when the names of the CDs loaded in each CD loading unit are listed.

As shown in FIG. 3, the tuner unit 20 is provided with an antenna 21 and a demodulation/amplification section 22, and is capable of obtaining received audio outputs (L, R). A CPU 23 that controls the operations of the entire unit such as FM switching and tuning, a RAM 24 and a program ROM 25 that store name registration data related to received broadcasts, which will be described later, are provided.

As shown in FIG. 4, the power amplifier unit 30 is a DSP processing section formed from a DSP, an A/D converter, a D/A converter, etc. for applying various effect processing to the L and R input audio signals. 31, and a CPU 33 which has amplification units 32L and 32R and controls the operation of the entire unit, such as setting control of DSP processing values and amplification volume adjustment, based on commands from the control unit 60, and a DSP processing value which will be described later. A RAM 34 and a program ROM 35 are provided for storing name registration data related to the computer.

Furthermore, the display unit 50 is constructed as shown in FIG. As described above, the front panel of the housing is provided with a liquid crystal display screen 51, an operation switch section 52, and an infrared light receiving section 53, through which various display operations and user operation inputs can be performed. A CPU 54 controls the entire display unit 50, is connected to the control unit 60 via a control bus B, and operates based on commands from the control unit 60. 5
5 is a ROM that holds the operation program, and 56 is a workpiece R.
It is AM.

A character generator 57 generates character signals necessary for display operation based on control signals supplied from the CPU 54 via the internal bus Bi.
It is supplied to the liquid crystal drive circuit 58. The liquid crystal display screen 51 has, for example, 6 lines of display space with 30 characters per line, and a liquid crystal drive circuit 54 applies a driving voltage to a predetermined pixel (transparent electrode) based on a supplied character signal. to drive the liquid crystal and perform display operations. As an actual display, the current operation content is shown, for example, as shown in FIGS. 6(a) and 6(b). In other words, tuner unit 20 is F.
The frequency when receiving M broadcasting, the CD number (=disc magazine loading position number) and song number (track number) when playing a CD with the CD player unit 10 are clearly displayed, and the volume, The tone display, the contents of surround processing by the DSP, etc. are shown.

When the user operates the operation switch section 52, the operation signal generation section 59A is activated according to the operated button.
The operation information using digital code is output from the CPU.
54, and further transmitted to the control unit 60 via bus B, where system control is performed according to the operation details. Further, the infrared command signal output from the remote commander 70 is converted into an electrical signal by the infrared receiver 53, and is further converted into an electrical signal by the operation signal generator 59.
Similarly, in B, the operation information is based on digital code, and CP
It is transmitted to U54 and control unit 60.

The remote commander 70 is provided with operation keys as shown in FIG. 7, for example. In other words, it is used for power key 71, DSP control key 72, numeric keypad 73, disk operation control key 74, source selection key 75, volume and tone operation, or registration operation, almost like a remote commander in a conventional audio playback device. select key, +
key, - key 76, etc., and in this embodiment, in particular, an operation key 77 for displaying a list, which will be described later.
is provided. Note that the operation switch section 52 is also provided with operation buttons having substantially the same contents as those of the remote commander 70.

As described above, the sound reproduction device of this embodiment has the following features:
A CD player unit 10 into which 10 CDs can be loaded using a disc magazine 11 and a display unit 50 that can display predetermined operation details are provided.For example, only the display unit 50 is placed on the front panel of the car, The player unit 10 and other units are put into use by being placed in the trunk of a car, etc., and the name registration operation, CD discrimination operation, and list display operation described below are performed. Its operability can be greatly improved.

First, the name registration operation will be explained with reference to the flowchart of the control operation of the control unit 60 shown in FIG. The name registration operation in this embodiment is an operation in which the user individually assigns an arbitrary name to each CD, broadcasting station, and DSP processing content, and the name registration operation is an operation in which the user individually assigns an arbitrary name to each CD, broadcasting station, and DSP processing content. When reception is being performed, the display including the unique name as shown in FIGS. 9(a) and 9(b) is displayed instead of the display shown in FIGS. 6(a) and 6(b). .

When the user sets the system to the registered operation mode by, for example, pressing and holding down the operation switch section 52 or the list display key 77 of the remote commander 70 for two seconds or more, the system is set to the registered operation mode. The name is registered, but it is determined (F100, F10
1). For example, if a CD is being played and the LCD screen 51 is displaying a screen like the one shown in FIG. If a screen like 6(b) is displayed, register the name of the FM broadcast of the frequency, and
A DSP adjustment screen as shown in FIG. 10 is displayed on the liquid crystal display screen 51, and if a DSP processing value is being set to obtain a desired acoustic effect, a name for the set DSP processing value is subsequently registered. It will be executed.

In the case of registering a CD name, the control unit 60 first displays a predetermined registration screen on the liquid crystal display screen 51, and allows the user to input predetermined characters according to the cursor display, for example. F102)
. When the user inputs an alphabetical name using the select key, + key, - key 76, etc. of the remote commander 70, the control unit 60
sequentially imports the information into the work RAM 61 (
F103). Then, when the name input operation is completed, the registration control command is sent to the CP of the CD player unit 10 along with the name data.
Supplied to U15 (F104, F105). Then,
Since the CPU 15 already knows the TOC information for the CD being played, part or all of the TOC information,
The supplied name data is registered in the RAM 17 in correspondence. When this registration operation is completed, the control unit 60 ends the registration mode and causes the display unit 50 to return the display screen to the normal display, which is shown in FIG.
As shown in (a), the registered name of the CD (for example, “T
OMOKO”) is also displayed (F114)
.

[0026] Similarly, when registering a name for a broadcasting station, a predetermined registration screen is displayed and input operations are performed.
Import the name data arbitrarily set by the user for the frequency currently being received (F106, F107, F108)
. For example, when the name "TOKYOFM" is input, it is supplied to the CPU 23 of the tuner unit 20 together with the registration control command, and the CPU 23 registers the registered name data in correspondence with the frequency in the RAM 24 (F109). After returning to normal mode, Figure 9 (
The name is displayed as shown in b).

Furthermore, the same applies to the case of DSP name registration, and when name data is input based on the registration screen, a registration control signal and registered name data are supplied to the CPU 33 of the power amplifier unit 40, and the registered name data is set. Register it in the RAM34 along with the various parameters (F110, F
111, F112, F113).

Through the operation of the control unit as described above, the user can assign desired names to various audio output sources and DSP effects, and after the names have been registered, the contents on the liquid crystal display screen 51 are displayed as described above. Since the registered name is also displayed at the same time, the current audio source can be recognized.

Next, a list display operation based on such name registration will be explained. List display operation means the list of CDs currently loaded in the disc magazine 11 of the CD player unit 10, registered broadcast stations, or registered CDs.
This is an operation of displaying a list of SP processes on the liquid crystal display screen 51 by registered name. First, the CD player unit 10 of this embodiment performs a preliminary operation for displaying a list.
Under the control of the CPU 15, the loaded CD determination operation shown in FIG. 11 is performed.

First, the user takes out the currently inserted disk magazine 11 and inserts a new C of up to 10 desired disks.
When the CD is loaded and installed in the CD player unit 10, at this stage the CPU 15 performs an operation to detect what CD is stored in each CD loading section of the disc magazine 11 (F200). For this purpose, first, the loop control variable
Take out D and mount it on the player section 13 (F203
). Note that even if the loaded CD determination operation shown in this flowchart is in progress, if the user performs a CD playback operation, the loaded CD determination operation is stopped and the specified CD is played back.
Performs the playback operation of D (that is, the CD loaded in the CD loading unit designated by the number 1 to 10) (F202)
.

[0031] After loading the first CD into the player section 13, the player section 13 performs a playback operation of this CD and reads the TOC information (F204). And this T.O.
C information to the CPU 15, and the CPU 15 receives the TOC information.
The registered name data stored in the RAM 17 is searched based on the information (F205). As mentioned above, RAM1
7 stores part or all of the TOC information in association with the registered name, so the CPU 15 can determine the name of the first CD by searching the RAM 17. Once you know the name of the CD, enter the registered name on the CD loaded in the first CD loading section of the disc magazine 11.
is stored in the RAM 18 as the name (F206).

Next, the loop control variable X is incremented (
F208), loads the CD loaded into the second CD loading section of the disk magazine 11, determines the registered name from its TOC information, and stores it in the RAM 18 (F2
03-F206). After repeating these operations and importing the registered names of each of the 10 loaded CDs into the RAM 18, the loaded CD
The determination operation ends (F207).

With the above operations, the list data regarding the CDs loaded in the disk magazine 11 is stored in the RAM 1.
Created on 8th. Although not shown in the above flowchart, if there is no registered name, that is, if a CD that has not yet been registered is loaded, blank data is stored instead of the name, and the disc Empty CD with no CD loaded in the magazine
If there is a loading section, data such as "NO DISC" may be stored in this empty CD loading section.

[0034] Regarding the registered broadcasting station name and DSP processing name, since the user does not arbitrarily change the source, the operation as shown in the flowchart of Fig. 11 is not necessary.

List display is realized by the control unit 60 performing the operations shown in FIG. For example, the user operates the operation switch section 52 or the remote commander 7.
Operation of pressing the 0 list display key 77 (pressing for less than 2 seconds)
, the control unit 60 determines what list is to be displayed based on the current operating mode (F
300, F301). For example, it is determined that a list of CDs is to be displayed in the CD playback mode, a list of broadcast station names is to be displayed in the broadcast reception mode, and a list of DSP processing values is to be displayed in the DSP adjustment mode. However, it is also possible to perform arbitrary list operations regardless of the mode, such as displaying a broadcast station list during CD playback mode, as specified by the user.

[0036] When displaying the CD list,
First, the list data formed in the RAM 18 of the CD player unit 10 is read by the loaded CD determination operation described above, and this is supplied to the display unit 50 (
F302). In addition, in the case of the broadcast station list and the DSP processing name list, the RAM 2 of the tuner unit 20 is used.
4 or from the RAM 34 of the power amplifier unit 30 and supplies it to the display unit 50 (F303, F304). The control unit 60 supplies list data to the CPU 54 of the display unit 50 and issues a control command to display the list data. Accordingly, the CPU 54 drives the character generator 57 and the liquid crystal drive circuit 58 to display the list data on the liquid crystal screen 51, for example. List display as shown in FIGS. 13(a), (b), and (c) is performed (F305).

[0037] Regarding the items currently operating (playing) in the list, "POPS" of CD "8" in Fig. 13(a)
” or “THEATER” of DSP “9” in Fig. 13(c)
” is displayed in reverse video. Also,
If there is a CD loading section with no CD loaded, see Figure 1.
3(a) CD “6” “NODISC”
For CDs with an unregistered name and an unregistered name,
Nothing is displayed like CD "3".

This list display ends when the user presses the list display key 77 of the remote commander 70 again (pressing for less than 2 seconds) (F306), or when the list display key 77 is not operated. The process ends when a predetermined time has elapsed (F307), and the display returns to the normal display as shown in FIG. 6 or 9 (F208).

[0039] By displaying a list like this, you can see which C
Even if you do not remember which position in the disc magazine 11 a CD is loaded, you can easily check it, and you can select the desired CD by operating the CD number (the number of the CD loading section) based on the list display. It will be possible to play it. In particular, with regard to CDs, since the user arbitrarily takes out the disk magazine 11 and replaces the CD, it is difficult to memorize the CDs in each CD loading section, so the list display operation of this embodiment is very useful. . Of course, the broadcasting station and DSP processing value for obtaining the desired sound effect can be easily operated based on the list display even if you do not remember the preset number of the desired broadcasting station or DSP processing value. become.

Although this embodiment has been described as a component system in which each unit is a single device, a device in which all of the above units are integrated may be used. Of course, the system configuration is not limited to the above embodiment, nor is it limited to an on-vehicle system. Also, those with a changer function are CD
Although we have explained only the player unit, for example, if a DAT (digital audio tape) player with a similar changer function is installed in the system, the loaded DAT
It is conceivable to display a list of ATs.

[0041]

Effects of the Invention As explained above, in the sound reproduction device of the present invention, for a plurality of recording media loaded in the reproduction device section, display of a list of name data indicating the contents of each recording medium is executed in the display section. Since the user can check the recording medium number (loading position number) for each recording medium loaded in the playback device section when necessary, the user can specify the desired recording medium and play it. This has the effect of making it easier to perform the operations.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram of an embodiment of a sound reproduction device of the present invention.

FIG. 2 is a configuration diagram of a CD player unit of this embodiment.

FIG. 3 is a configuration diagram of a tuner unit of this embodiment.

FIG. 4 is a configuration diagram of a power amplifier unit of this embodiment.

FIG. 5 is a configuration diagram of a display unit of this embodiment.

FIG. 6 is an explanatory diagram of a normal display example in the display unit of this embodiment.

FIG. 7 is an explanatory diagram of the remote commander of this embodiment.

FIG. 8 is a flowchart of the registration operation of the control unit of this embodiment.

FIG. 9 is an explanatory diagram of a display example after name registration in the display unit of this embodiment.

FIG. 10 is an explanatory diagram of a DSP adjustment screen of this embodiment.

[Fig. 11] Loaded CD of the CD player unit of this embodiment
It is a flowchart of a determination operation.

FIG. 12 is a flowchart of the list display operation of the control unit of this embodiment.

FIG. 13 is an explanatory diagram of an example of list display on the display unit of this embodiment.

[Explanation of symbols]

10 CD player unit 11 Disc magazine 12 Disc changer section 13 Player section 15 CPU 17 RAM 18 RAM 20 Tuner unit 30 Power amplifier unit 50 Display unit 51 Display screen 54 CPU 60 Control unit

Claims (1)

[Claims] 1. A playback device section that can load a plurality of recording media and selectively select and play back a predetermined recording medium from the loaded recording media, and a display section that performs a predetermined display operation. and a control means for controlling operations of the playback device section and the display section, and the control means determines name data registered in advance for each recording medium currently loaded in the playback device section. a recording medium discriminating means that is capable of storing the same information, and displaying a list of name data discriminated and stored by the recording medium discriminating means for each recording medium currently loaded in the playback device section on the display section. What is claimed is: 1. A sound reproducing device comprising at least a display control means capable of performing the following functions.