JPH11265566A - Reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproducing device capable of displaying character information on a limited display space and efficiently selecting desired character information within a short time. SOLUTION: In an on-vehicle audio equipment composed of a CD changer 2 for housing a plurality of CDs where a CD master unit 1 and a CD text are recorded, the CD master unit 1 includes a memory part 16 for storing the character information of a reproduced CD, a display part 17 for displaying the character information, and a system control unit 10 for selecting the character information displayed on the display part 17 based on identification information such as a CD category code or the like. Based on a category specified by a user, a list of proper ones selected from CD titles housed in the CD changer 2 is made and displayed on the display part 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus, and more particularly, to a reproducing apparatus suitable for use in a vehicle-mounted audio apparatus.

[0002]

2. Description of the Related Art In-vehicle audio equipment has been widely used. Particularly in recent years, multiple compact discs (Co
CD changers, which house mpact discs (CDs) and play selected ones of them, have also become widespread. This CD changer is provided separately from a controller installed on a dashboard or the like, and is used by connecting to the controller via a bus cable or the like. The operation of the CD changer is performed by the operation of a connected controller, and a plurality of CDs stored in the CD changer are selected according to the user's preference.
By selecting D, the CD can be reproduced.

[0003] That is, in order for a user to select a desired CD from a plurality of CDs stored in a CD changer, the type of the stored CD must be specified by text (such as the title of the CD) entered by the user himself. A list of text information (referred to as “CD text”) recorded in advance on a CD or a list of text information (referred to as “CD text”) is displayed on the display panel of the controller. Can be selected and specified.

[0004]

However, since the controller is mounted in a limited space such as a console box or a dashboard, the size of the display panel is limited. Therefore, if the number of CDs that can be stored in the CD changer is larger than the number of lines that can be displayed on the display panel, when trying to check all CDs on the display panel, a list of the titles of those CDs is displayed in the display panel. I didn't pay. Therefore, the user has to perform a key operation of the audio device to scroll the displayed list in the vertical direction and view the list.

That is, as shown in FIG. 22A, first,
In the in-vehicle audio equipment, when the list key 201 of the operation unit is pressed, the titles of CDs 202-1, 202-2,.
Is displayed on the display unit 203. At this time, if the displayed list 202 does not include the user's desired CD, as shown in FIG. 22B, the user operates the up and down cursor keys 204a and 204b to change the desired CD. Scroll the list vertically until the title appears. Thereby, the desired CD
, For example, the title "CLASSIC E" 202-9, the cursor 205 is positioned on the title 202-9 and the enter key 206 is pressed. As a result, the selected CD is reproduced, and as shown in FIG. 22C, the display panel enters a normal display state in which the disc number, the track number, the elapsed time, and the title of the CD are displayed.

In FIG. 22, reference numeral 207 denotes an open key for opening the operation unit and the display unit 203 in front of the front to expose an insertion slot of a CD or MD (mini disk) or a cassette reproducing unit, and 208 denotes a volume key. , 209a,
209b is the CD stored in the CD changer,
A key for selecting storage order (descending order, ascending order), 210 is a source key for selecting reproduction of CD and reception of radio broadcasting, 211a and 211b are broadcasting stations of CD and radio broadcasting, and track and frequency are respectively. A key for selecting in order (descending order, ascending order) is a menu key 212 for selecting a specific process.

As described above, when the user attempts to select a desired CD, the up and down cursor keys 204a, 204
4b has to be pressed many times, so that there is a problem in that the selection takes time.

[0008] In the case of a vehicle-mounted audio device, the operation may be performed while the user is driving. That is, from the CD stored in the CD changer to the desired CD
Is selected, the user may visually check the displayed list while driving the car. Therefore, if it takes time to check the list, there is a problem that safety in driving a car may be impaired. Such a problem is not limited to the CD, but also exists in the selection of another recording medium such as an MD, and also in the selection of a radio broadcasting station or its program.

Therefore, an object of the present invention is to provide a reproducing apparatus which can display required character information in a limited display space and can efficiently select desired character information in a short time. It is in.

[0010]

According to a first aspect of the present invention, there is provided a computer-readable storage medium storing a plurality of recording media in which character information related to a recorded program is recorded in a management area. Storage means for storing reproduced character information in a reproducing apparatus for selectively reproducing one from
A display unit for displaying character information; and
Control means for selecting character information displayed by the display means.

According to a second aspect of the present invention, there is provided a reproducing apparatus for selectively reproducing one of a plurality of broadcast signals including character information, a reproducing unit for separating the character information from the broadcast signal,
It is characterized by having storage means for storing character information, display means for displaying character information, and control means for selecting character information displayed by the display means based on the identification information.

According to the reproducing apparatus of the present invention constructed as described above, the character information recorded on the recording medium or included in the broadcast signal is converted into the character information displayed on the display means based on the identification information. By performing the selection, necessary character information can be displayed in a limited display space, so that the number of user operation procedures in selecting and specifying the character information can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a reproducing apparatus according to the present invention will be described with reference to the drawings. FIG. 1 shows an example of a vehicle-mounted audio device to which the present invention is applied.

As shown in FIG. 1, a vehicle-mounted audio device according to this embodiment includes a CD master unit 1.
And CD changer 2. The CD master unit 1 and the CD changer 2 are connected by a bus cable 4 via an interface 3. And
The CD changer 2 can be operated from the CD master unit 1. The CD master unit 1 and the CD changer 2 can reproduce character (additional) information in a lead-in area for management in a CD text format.

Digital audio signals from the CD player unit 5 and the CD changer 2 of the CD master unit 1 are supplied to a selector 6. After one of the digital audio signals is selected by the selector 6, the digital audio signal is converted into an analog audio signal by the D / A converter 7. This audio signal is supplied to the volume / tone control unit 8. The selector 6 and the volume / tone control unit 8 are controlled by a control signal output from a system control unit 10 when a user operates the operation unit 9, and an audio output amplifier is provided to the volume / tone control unit 8. The speaker 12 is connected via the speaker 11.

The subcode transmitted from the CD changer 2 via the interface 3 and the subcode from the CD player unit 5 are supplied to a selector 13. After one of the subcodes is selected by the selector 13, the subcode is supplied to the subcode processor 14. In the subcode processor 14, processing such as error detection of the subcode is performed, and the Q channel, R to
The output is separated from the W channel. Subcode Q
Are supplied to the system control unit 10, and R to W are supplied to the CD text decoder 15.

The CD text decoder 15 decodes subcodes of the R to W channels. The CD text decoder 15 has a small-capacity RAM, and outputs data in response to a request from the system control unit 10. Output CD
As the text data, data necessary for the system is selected in the system control unit 10 and stored in the memory unit 16. In this case, text information set to be displayed on the display unit 17 of the CD master unit 1 is selected and stored in the memory unit 16. That is, the data of the type and language of the text to be displayed is stored in the memory unit 16. Of course, all of the CD text information can be stored in the memory unit 16. However, in that case, the capacity of the memory increases, and there is a waste in storing data that is not displayed. In the case where a custom file input by the user himself is used as what is displayed on the display unit 17 of the CD master unit 1, data of the custom file is also stored in the memory unit 16.

The CD text decoder 15 detects an error in the CD text data. As described later, the CD text data can be detected by an error detection code (CRC) for each pack. The presence or absence of an error is detected for each pack. In the multiplex-recorded format, if the CRC check result of all the packs among the multiplex-recorded packs indicates an error, an error flag indicating that the pack is an error is formed. . This error detection flag is supplied to the system control unit 10 together with the CD text data. The system control unit 10 refers to the error detection flag to determine whether character information can be displayed by CD text data,
When it is impossible to correctly read or decode the CD text data due to a scratch on the CD or the like, a process of generating a warning is performed.

The system control unit 10 controls the operation state of the CD master unit 1 and the CD changer 2. A display unit 17 including a display driver is connected to the system control unit 10. The display unit 17 is, for example, a liquid crystal display device. The display unit 17 displays character information such as a CD text, and displays a warning when the CD text cannot be read.

An operation signal from the operation unit 9 is given to the system control unit 10. The system control unit 10 and the interface 3 are connected, and a key operation on the operation unit 9 is supplied to the CD changer 2 as a control signal through the interface 3.

FIG. 2 shows the operation units 9 and 17 of the audio equipment mounted on the vehicle. The operation unit 9 has a menu key 3
1, at least upper and lower cursor keys 32a, 32b, an enter key 33, and a list key 34 are provided.

First, when the menu key 34 is pressed and the list comparison selection menu is selected, the genre list 35 is displayed on the display unit 17 as shown in FIG. 2A.
Will be displayed. The user can use the up and down cursor keys 32a, 3
By operating 2b, the cursor 36 is moved to a desired genre (for example, “CLASSIC” 35-3) from the list 35, and the enter key 33 is pressed. As a result, a desired genre is selected, a flag for specifying a list selection is set, and a list selection specification mode is set. The list of these genres is displayed based on a genre code included in, for example, a search keyword in a CD text to be described later, but identification information included in an area other than the search keyword may be used. Also,
The genre input by the user himself may be displayed. Further, the user may input a character string or the like, and display only a title including the character string.

Thereafter, when the wrist key 34 is depressed, as shown in FIG.
From D, a title corresponding to the genre "CLASSIC" is selected, a list thereof is created, and displayed on the display unit 17.

Next, the cursor 36 is moved between the display of the CD titles 37-1, 37-2, 37-3,... By the operation of the upper and lower cursor keys 32a, 32b of the operation unit 9 by the user. From the CDs stored in the CD player unit 2 and the CD changer 3, the title of a desired CD, for example, the title of "CLASSIC C" 37-
3 is selected. Here, when the enter key 33 is pressed, as shown in FIG. 2C, the title 37-3 of the selected CD is displayed on the display panel 22, the display is brought into the normal display state, and the CD player unit 5 or the CD changer 2 is displayed. In, the selected CD is reproduced.

In the operation unit 9 shown in FIG.
For example, an open key for opening the operation unit 9 and the display unit 17 forward and forward, 39 is a volume key, 40a and 40b
Is, for example, a CD stored in the CD changer 3.
Are selected in the order in which are stored (descending order, ascending order); 41 is, for example, a source key for switching between CD and MD reproduction and radio broadcast reception;
Is a key for selecting, in order (descending order, ascending order), a track of a CD being reproduced or a broadcasting station of a radio broadcast being received.

FIG. 3 is a flowchart showing a process when the menu key 32 is pressed according to one embodiment of the present invention. As shown in FIG. 3, first, it is determined whether or not the menu key 32 has been pressed (step ST1). When the menu key 32 is pressed, a menu of what processing is performed is displayed on the display unit 17, and a list target selection menu is selected from the menus (step ST2).
When the list target selection menu is selected, a genre list is displayed, and the user moves the cursor to select a genre (step ST3). A genre is selected and the enter key is pressed (step ST4).
And the selected genre are determined, and the list selection designation flag is set to "1" (meaning a logical value "1") (step ST5).

FIG. 4 is a flowchart showing the processing when the list key 31 is pressed. As shown in FIG. 4, it is determined whether or not the list key 31 has been pressed (step ST11). When the list key 31 is pressed, the display 17
It is determined whether or not is in the normal display state (step ST12). If not in the normal display state, the display unit 17
Is set to the normal display state, and the process ends (step ST
3). In the normal display state, it is determined in advance whether or not the menu button has been pressed, that is, whether or not the list selection designation flag has been set to "1" (step ST14). If the flag is not set to "1", the titles of all the CDs stored in the CD changer are displayed in a list, and the process ends (step ST15). If the flag has been set to "1", CDs according to the selected genre are selected, and a list of titles of those CDs is created (step ST16). Selected CD title 33-1,
, 33-2, 33-3, ... are displayed in a list (step ST17), and the process ends.

Next, the format of the CD text according to the embodiment of the present invention will be described below. First, for ease of understanding, the data structure of a CD for audio reproduction will be described. CD
As shown in FIG. 1, the CD 101 has a hole 102 at the center, and a TOC (table of content) extends from the inner circumference to the outer circumference.
s) A lead-in area 103, which is a program management area in which data is recorded, a program area 104 in which program data is recorded, and a program end area, a so-called lead-out area 105, are formed. Have been. In an audio reproduction CD in which audio information is recorded, audio data is recorded in a program area 104, and time information of the audio data is managed in a lead-in area 103. Also, C
When the reading of the audio data in the program area 104 by the D playback device is completed, the read-out area 105
When the pickup arrives at the
The reproduction operation of is ended.

On the CD, sub-codes are recorded in addition to audio data as main data. Hereinafter, the P channel and Q channel data of the subcode will be described. An audio signal recorded on a CD is
One sample or word is 16 bits and 44.1
It is sampled at a sampling frequency of kHz. The sampled data is one sample or one sample.
The word 16 bits are divided into upper 8 bits and lower 8 bits to form symbols, and error correction processing and interleave processing are performed in units of the symbols, so that audio data is combined into one frame for every 24 symbols. One frame corresponds to each of six samples of the left and right stereo channels.

By the EFM modulation, 8 bits of each symbol are converted into 14 bits. FIG. 6 shows a data structure of one frame after the EFM modulation. One frame 135 is 24
A synchronization pattern data area 131 of channel bits;
A subcode area 132 of 14 channel bits, 12
A program data area 133 including symbol program data D1 to D12, a parity data area 134 including four symbol parity data P1 to P4,
It comprises another program data area 133 and a parity data area 134. In order to connect each area or data part, a connection bit of three channel bits is allocated to each part. Therefore, one frame 13
5 includes a total of 588 channel bits of data.

FIG. 7 shows 98 frames collected and rearranged so that each area and data portion of the frame 135 are continuous in the vertical direction. The period of 98 frames shown in FIG. 7 is a unit for completing a subcode, and is called a subcode frame. This sub-code frame has a frame synchronization pattern section 136.
, Subcode section 137, data and parity section 1
38. This one sub-code frame is
This is equivalent to 1/75 second of the reproduction time of the CD.

Here, the subcode data including the data of the P channel and the Q channel is data recorded in the subcode section 137 in FIG. FIG. 8 shows the details of the data structure of the subcode frame of the subcode section 137. The first frame F01 and the frame F02 are the subcode frame synchronization pattern S0,
S1. This synchronization pattern is, like the frame synchronization pattern, an EFM modulation method (eight to fourteen modu).
lation: EFM) out of rule
It is a pattern of. Further, each of the 8 bits of one symbol constitutes the P channel to the W channel of the subcode. For example, the P channel is S0,
It is composed of a part of S1 and P01 to P96.

The P channel of the subcode has information corresponding to the presence or absence of a program, and the Q channel has a CD.
Information such as the above absolute time information, time information of each program, a program number (also called a track number), and a movement number (also called an index) are included. Therefore, it is possible to control the reproduction operation such as the start of the program by the information included in the Q channel.
By displaying the channel information, it is possible to visually check the number of the program being played on the optical disk, the elapsed time of the performance, the absolute time from the beginning, and the like.

Further, from the R channel of the subcode to W
The data for the six channels up to the channel can be used, for example, for displaying a still image or the lyrics of a song. Such a reproducing apparatus using the R channel to the W channel is called CD-graphics and is already known. Furthermore, recently, R to W in the lead-in area
A method (CD text) of recording additional character information on a CD using a channel has been proposed. This CD
In the case of text, it is possible to record character information of about 6500 characters, and the additional character information of the CD is assumed to be 800 characters or less, and is adapted to languages of eight countries.

FIG. 9A shows data recorded on a CD. As described with reference to FIG. 5, the TOC data recorded in the lead-in area 103 and the program recorded in the program
No. 1 to No. n and data of the lead-out area 105 are recorded.

As shown in FIG. 9B, TOC data recorded on an existing CD uses a Q channel of a subcode. The subcode has a data structure in which 98 bits constitute one frame. 7 of these 98 bits
Two bits are data. The TOC data has the format shown in FIG. 9B.

When the number of programs is 6, the data structure in the TOC is as shown in FIG. POINT
Is 00 to 99, PMIN, PSEC, PFR
AME is the start address of each program (absolute time)
Is shown. If POINT is A0, PMIN indicates the program number of the first program on the disc, and PS
EC and PFRAME are set to 00. POINT is A1
In this case, PMIN indicates the program number of the last program, and PSEC and PFRAME are set to 00.
When POINT is A2, PMIN, PSEC, P
FRAME indicates the address at which the lead-out starts.
These contents are repeated three times as shown in FIG. Furthermore, it is repeatedly recorded in the lead-in area. Such TOC data is read by a playback device when a CD is loaded, and stored in a memory inside the device.

FIG. 11 shows a data structure in the case of CD text (mode 4) according to an embodiment of the present invention. In the case of an existing CD, as described above, the total number of programs (songs) and the recording position of each program are managed using 72-bit data in one frame of the subcode of the Q channel. More specifically, a program number that can take a value from 00 to 99, a start address (absolute time) corresponding to each program, a first program number, a last program number, and an address at which a lead-out starts are included. Has been recorded. This Q
In addition to the channel subcode, CD text data composed of R channel to W channel as shown in FIG. 11 is recorded in the lead-in area.

The first two frames of data consisting of the R to W channels are synchronization patterns S0 and S1. The remaining 96 frames contain 9 symbols of 6 bits each.
Six symbols are included. These 96 symbols are divided into four by 24 symbols. These 24 symbols are called one pack, and four packs are called one packet.

At the beginning of each pack, mode information for setting the recording mode of information to be recorded in the pack, ID1 having identification information indicating the type of text information, and ID codes (ID2, ID3) having other identification information And I
D4) including a 24-bit ID code including
D region 1 is arranged. After this ID area 1, a text area 2 in which text information accompanying main data is recorded in 8-bit units is arranged. Further, a cyclic redundancy code (CRC) is provided for each pack as error detection.
A CRC area 3 in which 16-bit data for performing error detection according to the above is recorded.

FIG. 12 shows an outline of the CD text format. All character information is recorded in a text group. The text group is in the lead-in area,
The same text group is recorded repeatedly. One text group is composed of up to eight blocks. FIG.
Then, one text group is divided into two blocks (block 0
And an example constituted by block 1).

Block 0 contains English character information, and the character code for English is 8859-1. Block 1 includes Japanese character information, and the character code for Japanese is MS-JIS. Each block is composed of packs 0 to n.

FIG. 13A is a diagram showing the data format shown in FIG. 11 as serial data. FIG.
A, as shown in FIG.
In A, only 24 bits are divided into data for each byte, and these bytes are identified by ID1, ID2, ID for identification.
3. Assign to ID4 to form ID (or header) area 1. The subsequent text area 2 is also divided into data in byte units. The text area 2 is 12 bytes long, and a 2-byte CRC area 3 is provided at the end. These ID area 1, text area 2 and CR
The length of 18 bytes consisting of the C area 3 is called a pack. Such processing on a byte-by-byte basis makes it possible to perform processing using the signal processing method for the Q channel, and a simple processing circuit configuration can be achieved.

In the data format of the CD text, an error is detected by using error detection by CRC, and data is read again when an error is detected. For this reason, the data is, for example, quadruple-written for each pack in the TOC, and a series of data strings are repeatedly recorded in packet units. That is, 1
/ 1 synchronized with subcode sync having a period of 75 seconds
The packet contains four packs. With such multiplex recording, a complicated circuit for error correction can be omitted.

The multiplex writing in pack units is not limited to quadruple writing, and the unit of multiplex writing is not limited to pack units. For example, multiplex writing is performed in packet units or in units of several packets. Is also good.

Also, the ID 1 at the head of the ID area 1 is as shown in FIG.
As shown in FIG. 3B, 8 bits are used, which is 2 bits larger than the conventional one symbol. Furthermore, three bits from the MSB are used to identify the mode so that the CD player does not malfunction even if it is installed in a CD player having a function of decoding the subcodes of the existing R to W channels. Write. CD recorded in the lead-in area
In the case of the text format, mode 4 ("100"), which was undefined before the CD text format was proposed, is assigned as the mode indicated by these three bits. By doing so, an unrecognizable mode is only detected even if the reproducing apparatus is mounted on an existing reproducing apparatus. Therefore, the reproducing apparatus merely stops operation and does not have a possibility of malfunction. In addition, since the undefined modes include the mode 4 and the mode 5 and the mode 6, these modes can be used instead of the mode 4.

In this example in which mode 4 is specified by ID1, one pack is divided into ID1, ID2, ID2 divided into 8 bits (1 byte) as shown in FIG.
3, ID4, text bytes text1 to text12, 1
And a 6-bit CRC code.

ID1 has an 8-bit structure.
And the contents of data handled by the pack are defined as shown in FIG. ID1 is Mode 4 as described above.
(8 × h) (h means a hexadecimal number, and x means a value of the lower 4 bits).

ID1 indicates the contents of the character string following text1. (80h) is the album name / program name, (81h) is the performer / conductor / orchestra name,
(82h) is a poet, (83h) is a composer, (84h)
Is the arranger, (85h) is the message, (86h) is di
scID, (87h) is a search keyword including a genre code, for example, (88h) is TOC, (89h)
Are 2ndTOC, (8ah), (8bh) and (8c
h) is a reservation, (8dH) is closed information, (8eh)
Is the UPC / EAN (POS code) of the album and the ISRC of each track, and (8fh) is the block size information. Please note that reservations are currently undefined,
Means to be defined.

ID2 includes a 1-bit extension flag and a 7-bit track number or pack element number. The track number indicates the track number to which the first character of the text data of the pack belongs. As shown in FIG. 16, ID2 includes 1 to 99.
The track numbers up to are recorded. Since the track number is 1 to 99, any other numerical value “0” or “100” (64h) or more has a special meaning. "0
"0" means information representing the entire disc. MSB
Is always 0, and 1 is an extension flag. The pack element number is used depending on the type of the pack indicated by ID1.

ID3 is a serial number (sequence number) assigned to the pack. As shown in FIG. 17, the serial numbers of the packs in the block are from 00 to 255 (0 to FFh). ID3 = 0 always ID1 = 80
h is the first pack.

As shown in FIG. 18, ID4 is composed of a 1-bit (MSB) DBCC (Double Byte Character Code) identification bit, a 3-bit block number, and 4 bits indicating the character position of the pack. If the block includes a DBCC character string, the DBCC identification bit is set to “1”. In the case of the S (Single) BCC character string, this is set to “0”. The block number indicates the number of the block to which the pack belongs. The four bits indicating the character position indicate the number of the character of text1 of the current pack. "0000" is the first character, "000
“1” is the second character, “0010” is the third character, and “0011”, “0100”,.
Fifth,...

The text data consists of 12 bytes as described above, and includes a character string or binary information depending on the type of pack indicated by ID1. (ID1
= 88h), (ID1 = 89h), (ID1 = 8fh)
In packs other than, text data is composed of character strings. The character string is composed of a sequence of characters and a null code as a terminator. As the null code, one null code is used in the case of SBCC, and two null codes are used in the case of DBCC. As the null code, (00
h) is used, and it is recommended that the size of the character string be less than 160 bytes.

As an example, FIGS. 19, 20 and 21 show an example of the configuration of a pack (ID1 = 8fh) in the case of size information. FIG. 19 shows the data structure of a pack whose pack element number indicated by ID2 is (00h), and FIG.
FIG. 22 shows the data structure of the pack having the pack element number (02h).

Pack of (ID2 = 00h) (FIG. 19)
Is a serial number indicated by ID3, and a block number is indicated by ID4. Then, the subsequent text1 indicates the character (character) code of the block. This character code is a character code used for the character string of the pack (ID1 = 80h to 85h). The character code of the other pack is (00h). For block 0, the character code is applied as (00h). An example of the character code specification is shown below.

00h = ISO 8859-1 01h = ISO 646, ASCII 02h to 7F = Reserved 80h = MS-JIS 81h = Korean character code 82h = Mandarin (standard) Chinese character code 83h to FFh = Reserved For example, ISO 8859- 1 represents a number, an alphabet, a symbol, and the like in one byte.
8859-1 is used as the standard character code.

The next text2 is the first track number, text3 is the last track number, and text4 is the mode 2 and copy protection flag. This text4
1 bit (MSB) is a flag indicating whether or not the mode 2 CD text packet is encoded in the program area. The remaining seven bits are used as copy protection flags. text5 to text12 are (ID1 = 80
h) to (ID1 = 87h) indicate the number of packs, respectively.

In the pack (ID1 = 8fh, ID2 = 01h) (FIG. 20), I
A serial number and a block number are indicated by D3 and ID4, respectively. And text1 to text8 are (ID1
= 88h) to (ID1 = 8fh). text9 to text12 indicate the last serial numbers of blocks 0 to 3, respectively.

In the pack (ID1 = 8fh, ID2 = 02h) (FIG. 21), a serial number and a block number are indicated by ID3 and ID4, respectively, as in the packs shown in FIGS. And text1 to text
4 indicates the last serial number of each of the blocks 4 to 7. When the last serial number is (00h), it indicates that the block does not exist. Such a non-existent block is called a data-free block. Next text5
To text12 indicate language codes of blocks 0 to 7, respectively. While the character code indicates the type of data format representing each character of the character string, the language code indicates in which language the character information of each block is described. For example, in the case of English, the language code is (09h), and in the case of Japanese, the language code is (69h).

As described above, according to this embodiment, the titles of the CDs stored in the CD changer are displayed in a list by genre, so that the desired C
The procedure for selecting and specifying D can be simplified,
It can be done in a short time. Further, when the user operates the in-vehicle audio device while driving the car, the procedure and time required until the user specifies the desired CD can be shortened. Thus, the safety of the user in driving the vehicle can be further improved.

Although the embodiment of the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and various modifications based on the technical idea of the present invention are possible. is there.

For example, in the above-described embodiment, a single-stage unit arranged in one stage is used, but two or more units arranged in two or more stages may be used. Also,
Text information may be displayed near the in-dash using a liquid crystal monitor installed for television reception or navigation.

For example, in the above-described embodiment, a CD is used as a disc-shaped recording medium.
It is not necessarily limited to CDs, but other types of optical disks (for example, digital video disks (DV
D)), the present invention can be applied to a case where text information is displayed on a magnetic tape, an optical tape, a semiconductor memory, or the like. The digital main information recorded on the recording medium is not limited to audio data, but may be video data or the like.

Also, for example, in the above-described embodiment, text information is obtained from a CD in a CD text format.
The present invention can also be applied to a case where text information included in a broadcast signal such as a digital audio broadcast is displayed. For example, RDS (Radio Data Servise) and digital audio broadcasting (DAB (Digital Audio Broadcastin
g)), etc., may be applied to the name of the broadcast station or the name of the program of the radio broadcast transmitting the genre code of the program being broadcast. Alternatively, selection may be made in accordance with the song titles included in the CD text, and the song titles may be displayed in a list.

For example, in the above-described embodiment, the CDs stored in the CD player unit 2 are selected according to the music genre and displayed in a list, but the list display is not necessarily performed according to the music genre. The list display may be performed, for example, by performer, composer, recording date, CD title, and characters and character strings included in the title. When a list is displayed for each character or character string included in the title, the user himself or herself can input those characters or character strings.

Also, for example, in the above-described embodiment, the audio equipment mounted on the car is operated by the operation unit 9 of the CD master unit 1, but the remote controller provided separately from the audio equipment is used. You may make it operate. At this time, the remote controller is provided with at least an up / down cursor key, an enter key, a menu key, and a list key.

In the above-described embodiment, a plurality of genres are displayed in a list after the menu key 32 is pressed. However, a plurality of genres may be displayed in a toggle manner.

[0068]

As described above, according to the present invention, the control means for selecting the character information displayed by the display means based on the identification information has a limited display space. The desired character information can be displayed, and the desired character information can be efficiently selected in a short time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a vehicle-mounted audio device to which the present invention can be applied.

FIG. 2 is a schematic diagram of an operation unit and a display unit in a vehicle-mounted audio device to which the present invention can be applied;

FIG. 3 is a flowchart illustrating an example of an operation of a vehicle-mounted audio device to which the present invention can be applied;

FIG. 4 is a flowchart for explaining an example of an operation of a vehicle-mounted audio device to which the present invention can be applied;

FIG. 5 is a schematic diagram showing an area of a conventional music reproduction CD to which the present invention can be applied.

FIG. 6 is a schematic diagram illustrating data of one frame of a CD.

FIG. 7 is a schematic diagram for explaining the data configuration of the entire subcode frame.

FIG. 8 is a schematic diagram illustrating data of all channels of a subcode signal.

FIG. 9 is a schematic diagram showing the entire data structure of a CD and the structure of TOC data.

FIG. 10 shows TO recorded in a lead-in area of a CD.
FIG. 4 is a schematic diagram illustrating a configuration of C data.

FIG. 11 is a schematic diagram illustrating data of all channels of a subcode signal.

FIG. 12 is a schematic diagram showing an overall data format of a subcode.

FIG. 13 is a schematic diagram showing one pack and one symbol of a data format of a CD text.

FIG. 14 is a schematic diagram showing allocation of a data format according to an embodiment of the present invention.

FIG. 15 is a schematic diagram showing contents of data indicated by ID1.

FIG. 16 is a schematic diagram illustrating the contents of data indicated by ID2.

FIG. 17 is a schematic diagram illustrating the contents of data indicated by ID3.

FIG. 18 is a schematic diagram illustrating the contents of data indicated by ID4.

FIG. 19 shows that the pack element of the size pack is (00).
It is a schematic diagram which shows the content of the data of h).

FIG. 20 shows a case where the pack element of the size pack is (01
It is a schematic diagram which shows the content of the data of h).

FIG. 21 shows a case where the pack element of the size pack is (02
It is a schematic diagram which shows the content of the data of h).

FIG. 22 is a schematic diagram for explaining an operation of a controller according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... CD master unit, 2 ... CD changer, 5 ... CD player part, 9 ... Operation part, 10
... System control unit, 16 ... Memory unit, 17 ...
・ Display

Claims (3)

[Claims] 1. A reproducing apparatus for selectively reproducing one of a plurality of recording media in which character information related to a recorded program is recorded in a management area, wherein the reproduced character information is stored. A reproducing apparatus comprising: a storage unit that displays character information; a display unit that displays the character information; and a control unit that selects the character information displayed by the display unit based on identification information. 2. The method according to claim 1, wherein the identification information indicates a genre of a program recorded on the recording medium, and selects character information displayed on the display means based on the genre. A reproducing apparatus characterized in that: 3. A reproducing apparatus for selectively reproducing one from a plurality of broadcast signals including character information, a reproducing unit for separating the character information from a broadcast signal, a storage unit for storing the character information, A reproducing apparatus comprising: display means for displaying character information; and control means for selecting the character information displayed by the display means based on identification information.