JP2005135078A - Data processing system, data processor, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain occurrence of errors associated with a user's operation and improve operability and functionality. <P>SOLUTION: In a data processor 20, each record relating to content list data is flagged indicating that reading content data is not possible to the content data of a disk when the content data of the disk is being read. In case that there is a record of a flag indicating that the content data among the content list data cannot be read when the content list data are received from the data processor 20 to display, a slave machine 40-1 and the like display the content data in a display form for the content data recorded in the disk corresponding to the record, the display form being different from a display form for content data recorded in another disk (for example, reverse displaying). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a data processing system, a data processing device, and a program for reading content data from a plurality of data reading devices and performing data processing.

  Conventionally, content data in various data formats representing images (hereinafter, including still images and videos (moving images)) and sound are distributed in various forms.

  For example, there are MPEG1 (Moving Picture Experts Group 1), MPEG2, JPEG (Joint Photographic Experts Group; still image compression format), MPEG4, etc. as content data representing images. Data formats include PCM (Plus Code Modulation), AC3 (Audio Code Number 3) (registered trademark), MP3 (MPEG1 audio layer 3), WMA (Windows (registered trademark) Media Audio), and the like.

  Further, examples of the distribution form of content data include a recording medium and a communication distribution form. Such recording media are CD (Compact Disc), DVD (Digital Versatile Disc), HDD (Hard Disc Drive), memory media (for example, Memory Stick (registered trademark), SD card, multimedia card), etc. As for communication, via a wired transmission medium such as USB or a wireless transmission medium such as a wireless LAN, an Internet protocol such as USB (Universal Serial Bus) or TCP / IP (Transmission Control Protocol / Internet Protocol), IEEE802.11b ( Some are performed based on a transmission format such as a wireless LAN protocol.

  Various data processing apparatuses that process content data in accordance with such various data formats have been devised (see, for example, Patent Document 1).

  In particular, recently, a plurality of data readers such as a disk changer capable of storing and reading data such as DVDs and CDs, and the plurality of data readers are controlled in an integrated manner to read (or read) content data. A data processing system is being developed that includes a data processing device that reproduces the content data read via the data processing device.

The data processing apparatus is provided in a living room of a building, for example, and the user can enjoy music and movies in the living room. Further, the slave unit is installed in a room other than the living room (for example, a guest room or a child room), and the user can enjoy desired music and movies without being in the living room.
Japanese Patent Laid-Open No. 10-145780

However, the above data processing system has the following problems.
For example, when a plurality of slave units are connected to the data processing device, another slave unit is further added to the data reader that is reading content data in accordance with an instruction from the slave unit. In some cases, an instruction to read content data is input from. Since the data reading device has only a single data reading means (a pickup for reading data from a disc, etc.), while the content data is being read, the content data is further read from the data reading device. Even if a reading instruction is input, it is difficult to read the content data in accordance with the last reading instruction.
Also, when the data processing system does not have a communication capacity sufficient to transmit a plurality of content data from a plurality of data reading devices to the data processing device in parallel, the content data is being read. Even if a content data reading instruction is input to another data reading apparatus different from the data reading apparatus, it is difficult to read the content data in accordance with the last reading instruction.
The above operation is subjected to error processing, and this is notified to the user. The user recognizes that the processing performed by the user cannot be performed by this notification. However, since an error is displayed after the reproduction instruction is given, it is not convenient for the user.
An object of the present invention is to provide a data processing system, a data processing apparatus, and a program for reading content data from a plurality of data reading devices and performing data processing, thereby suppressing an error caused by an operation performed by a user, operability and function To improve the performance.

The invention described in claim 1
One or more data readers that store one or more recording media on which content data is recorded and read the content data from the recording medium;
A data processing device that controls the data reading device in response to an input request for content data and acquires the content data;
One or a plurality of slave units that perform an acquisition request for content data stored in the data reading device to the data processing device;
A data processing system comprising:
The data processing device includes:
Identification information that makes it possible to identify a recording medium or content data stored in a data reader that is acquiring content data and a recording medium or content data that is stored in a data reader that is not acquiring content data. Transmitted to the one or more slave units,
The slave is
When the identification information is received, a notification operation is executed based on the identification information.

The invention according to claim 4
One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A data processing device for acquiring the content data requested for acquisition,
Identification information enabling identification of a recording medium or content data stored in a data reading device from which content data is being acquired and a recording medium or content data stored in the data reading device from which content data is being acquired And transmitting to the slave unit.

The invention described in claim 7
One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A computer that controls the data processing device that acquires the content data requested for acquisition,
Identification information that makes it possible to identify a recording medium or content data stored in a data reader that is acquiring content data and a recording medium or content data that is stored in a data reader that is not acquiring content data. Implement the function to send to the slave unit.

The invention according to claim 8 provides:
One or more data readers that store one or more recording media on which content data is recorded and read the content data from the recording medium;
A data processing device for controlling the data reading device in response to an input request for acquiring content data and acquiring the content data;
One or a plurality of slave units that perform an acquisition request for content data stored in the data reading device to the data processing device;
A data processing system comprising:
The data processing device or the slave is
A list of content data that can be acquired from the one or more data readers is created and displayed, and recording media or content data stored in the data reader that is acquiring the content data are not displayed in a list. To do.

The invention according to claim 9 is:
One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A data processing device for acquiring the content data requested for acquisition,
Create and display a list of content data that can be acquired from the one or more data reading devices, and do not display the list for recording media or content data stored in the data reading device from which content data is being acquired. It is characterized by.

The invention according to claim 10 is:
One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input request to obtain content data. A computer that controls a data processing device that acquires content data requested for acquisition,
A list of content data that can be acquired from the one or more data readers is created and displayed, and the list is not displayed for recording media or content data stored in the data reader that is acquiring the content data. Realize the function to control.

  By notifying the user in advance of whether or not data can be read for each piece of content data, it is possible to suppress the occurrence of errors after a user operation, so that operability and functionality can be improved.

Hereinafter, the data processing system 1 will be described in detail with reference to the drawings.
First, the configuration of the data processing system 1 will be described with reference to FIG. The data processing system 1 includes data reading devices 10-1, 10-2, 10-3, a data processing device 20, and a content distribution server 30.

  The data reading devices 10-1, 10-2, 10-3, and the data processing device 20 transmit data based on the connection line 2 (for example, RS-232C, IEEE1394, etc.) to a main room such as a living room of a user's home. To be connected in series via).

  A device ID is set for each of the data reading devices 10-1, 10-2, and 10-3. The data reading devices 10-1, 10-2, and 10-3 indicate whether or not various control data transmitted from the data processing device 20 is for the own device, and data indicating a device ID included in the control data To determine.

  The data processing device 20 controls the data reading devices 10-1, 10-2, 10-3 according to various instructions transmitted from the slave units 40-1, 40-2, etc. Access and send / receive data.

  The slave units 40-1 and 40-2 are installed, for example, one by one in a sub room such as a child room or a bedroom, for example. Each of the slave units 40-1 and 40-2 has a connection line 3 (for example, a home phone line (Home PNA: Home Phoneline Networking Alliance), Connected to the data processing device 20 via a LAN line or the like). The subunit | mobile_unit 40-1 and 40-2 can transmit the signal for controlling operation | movement of the data reader 10-1, 10-2, 10-3 and the data processor 20 to the data processor 20. .

  The content distribution server 30 is installed in a building used by a content provider, and can be connected to the data processing device 20 via a network (for example, the Internet).

  When the content data distribution request is transmitted together with the copyright data related to the content data via the network, the content distribution server 30 analyzes the copyright data to determine whether the content data can be distributed, and can be distributed. If it is determined, the content data is distributed to the distribution request source.

  Next, each of the data reading devices 10-1, 10-2, 10-3, the data processing device 20, and the slave units 40-1, 40-2 will be described in detail.

First, the data reader 10-1 will be described with reference to FIGS.
Since the data reading devices 10-2 and 10-3 have the same configuration as the data reading device 10-1, the illustration and description are omitted below for the sake of brevity.

Here, the data reader 10-1 can store, for example, 400 disks (CD, DVD, etc.), but the number of disks that can be stored is not limited to 400. Each disk stored in the data reader 10-1 includes TOC (Table Of Contents) information, disk code (information such as disk manufacturer, catalog number, and content distribution server 30 address), disk title, and track. In addition to text data such as a title (hereinafter referred to as disc-related data), content data such as audio and images, copyright data relating to each content data, and the like are recorded.
Hereinafter, it is assumed that a regular disk certified by the content distribution server 30 is stored in the data reader 10-1 or the like.

  The data reading device 10-1 is, for example, a copyright related to the content data of the disc stored in the rotary tray 101 when the disc is stored in the rotary tray 101 or when the data processing device 20 is reset. Data and disk related data are read in advance and transmitted to the data processing device 20. Further, the data reading device 10-1 reads the content data on the disc designated from the data processing device 20 and transmits it to the data processing device 20.

  Further, the data reading device 10-1 transmits the content data read from the disc to the data processing device 20 without performing the decoding process. Thereby, although the transmission speed is improved, the data reading device 10-1 can transmit the read content data to the data processing device 20 after decoding the content data by itself.

A schematic configuration of the disk storage portion of the data reader 10-1 is shown in FIG.
As shown in FIG. 2, the disk storage unit includes a rotary tray 101, a rotary tray control motor 102, a disk arm 103, a sensor support plate 104, a first sensor 104a, a second sensor 104b, a third sensor 104c, and a disk presence / absence detection. A sensor 104d and the like are installed on the substrate 105, and signal lines indicated by reference signs A1 to A6 in the drawing are connected to the microcomputer 106 and its peripheral circuits shown in FIG.

  The rotary tray 101 has 400 slots extending in the radial direction from the center thereof, and holds and stores the disk by standing the disk on these slots. Installed in the department. The rotary tray 101 is rotated by power supplied from the rotary tray control motor 102.

  The rotary tray control motor 102 drives the rotary tray 101 in accordance with a control signal output from the rotary tray control motor driver 110 via a signal line indicated by reference numeral A6 in the figure, and performs an accurate rotation operation on the rotary tray 101. Make it.

  The disk arm 103 operates in response to a control signal transmitted from the disk arm control motor driver 111 via a signal line indicated by reference numeral A5 in the drawing. That is, in response to the control signal, one disk in the slot at the disk transport position facing the disk arm 103 is pulled out, this disk is set in a playback device (not shown), and after playback, it is stored in the original slot again. To do.

  Next, the first sensor 104a, the second sensor 104b, the third sensor 104c, and the disk presence / absence detection sensor 104d will be described.

  The first sensor 104 a and the second sensor 104 b are on the substrate 105 and are installed below the rotary tray 101. These detect individual slots (disk storage locations) and detect the rotation direction of the rotary tray 101.

  The first sensor 104a and the second sensor 104b are installed on two different moving radii extending radially from the rotation center axis of the rotary tray 101, and are further installed at different distances from the rotation center of the rotary tray 101. Is done. Further, the installation positions of the first sensor 104a and the second sensor 104b are such that the signal PH1 output from the first sensor 104a and the signal PH2 output from the second sensor 104b are mutually connected by the rotation operation of the rotary tray 101. It is installed at a position where it occurs with a 1/4 cycle shift (see FIG. 3).

  The first sensor 104a outputs a signal PH1 generated by the rotation operation of the rotary tray 101 to the microcomputer 106 via the signal line indicated by reference numeral A1 in the figure, and the second sensor 104b also outputs via the signal line indicated by reference numeral A2 in the figure. Then, the signal PH2 generated by the rotation operation of the rotary tray 101 is output to the microcomputer 106.

  The third sensor 104c is installed on the substrate 105 and outputs a signal PH3 used when specifying the position of the rotary tray 101. The third sensor 104c generates a signal PH3 by the rotation operation of the rotary tray 101, and outputs the signal PH3 to the microcomputer 106 via a signal line indicated by reference numeral A3 in the drawing.

  The rotary tray 101 is provided with a plurality of sections in the circumferential direction where the signal PH3 is “Low”, and the number of slots formed in each section is different from each other (for example, as shown in FIG. 3A). The “Low” section of the signal PH3 shown corresponds to the section of three slots.)

  The disk presence / absence detection sensor 104d is installed on the sensor support plate 104 installed on the top of the rotary tray 101, and detects the presence / absence of a disk in the slot. The disk presence / absence detection sensor 104d outputs a detection signal indicating the presence / absence of a disk in the slot to the microcomputer 106 via a signal line indicated by reference numeral A4 in the drawing.

  Here, referring to FIGS. 3A and 3B, the position and rotation direction of the rotary tray 101 are specified, and the presence or absence of a disk on the slot of the rotary tray 101 is specified (both are performed by the microcomputer 106). Will be described in detail.

3A is a timing chart of the signals PH1, PH2, and PH3 output from the first sensor 104a, the second sensor 104b, and the third sensor 104c, respectively. FIG. 3B is a timing chart of the first sensor 104a, the second sensor 104c, and the third sensor 104c. 2 is a timing chart of signals PH1 and PH2 output from the two sensors 104b and a disk presence / absence detection signal output from the disk presence / absence detection sensor 104d.
Reference numerals C1 to C5 in the figure indicate count timings when the microcomputer 106 counts slots one by one. This count timing occurs only when the signals PH1 and PH2 are both “Low”, and in other cases, the count timing does not occur.
Note that the count timings indicated by reference numerals C1 to C5 in the drawing exemplify a part of a plurality of count timings that occur during actual operation.

Identifying the position of the rotary tray 101:
By counting the number of count timings (the number of slots) included in the “Low” section of the signal PH3, the position of the rotary tray 101 can be specified.

Specifying the rotation direction of the rotary tray 101:
The phases of the signals PH1 and PH2 are shifted from each other by a quarter period. If the rotation direction of the rotary tray 101 is reversed, the phase is also reversed and the signals PH1 and PH2 in FIG. That is, the rotation direction of the rotary tray 101 is specified from the phases of the signals PH1 and PH2.
For example, when the signal PH1 is switched to “High” after both the signals PH1 and PH2 are counted “Low”, the rotation direction of the rotary tray 101 is specified as the right rotation, and the signal PH2 is switched to “High”. Then, the rotation direction of the rotary tray 101 is specified as the left rotation.

Identifying the presence of a disk:
As shown in FIG. 3B, the disk presence / absence detection sensor 104d outputs a “High” signal as a standard value. When the count timing is generated by the rotation operation of the rotary tray 101, if a disk is stored in the slot corresponding to the count timing, the disk presence / absence detection sensor 104d continuously outputs the standard value, and the microcomputer 106 Stores this data in RAM.
On the other hand, when the count timing is generated by the rotation operation of the rotary tray 101, if no disk is stored in the slot corresponding to the count timing, the disk presence / absence detection sensor 104d outputs one pulse of the “Low” signal, The microcomputer 106 stores this data in the RAM.

  Next, the configuration of the control system of the data reading device 10-1 will be described in detail with reference to FIG.

  As shown in FIG. 4, the data reading apparatus 10 includes a microcomputer 106, a RAM 106a, an input unit 107, a display unit 108, an exchange opening / closing control motor driver 109, a rotary tray control motor driver 110, a disk arm control motor driver 111, and a DSP 112. , Pickup unit 113, load / unload SW 114, exchange port opening / closing control motor 115, communication control unit 116, etc., input unit 107, display unit 108, pickup unit 113, load / unload SW 114, and exchange port Each part except the opening / closing control motor 115 is connected to each other by a plurality of buses.

  The microcomputer 106 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) (not shown), and comprehensively controls the data reader 10-1. The ROM stores a main control program for controlling the data reading device 10-1 and various application programs related to the program. The RAM stores execution files of the various programs, various data generated during the execution, and the like. Is temporarily stored.

  The microcomputer 106 receives the output signals of the first sensor 104a, the second sensor 104b, the third sensor 104c, and the disk presence / absence detection sensor 104d via the signal lines indicated by reference numerals A1 to A4 in the drawing, and converts the received signals into the received signals. Based on this, various position data for controlling the operation of the rotary tray 101 are calculated and stored in the RAM.

  The microcomputer 106 opens and closes the exchange port 100, rotates the rotary tray 101, operates the disc arm 103, or a playback device (with a disc set) according to various operation signals input via the input unit 107. The reproduction processing performed by the (not shown) is controlled.

  As described above, the microcomputer 106 determines the position and rotation direction of the rotary tray 101 and the presence / absence of a disk based on the output signals of the first sensor 104a, the second sensor 104b, the third sensor 104c, and the disk presence / absence detection sensor 104d. Is identified.

  The microcomputer 106 controls the data reading device 10-1 according to various instructions transmitted from the data processing device 20 via the connection line 2.

  The input unit 107 includes various operation keys and operation dials (not shown) related to the operation of the data reading device 10. When these operation keys and operation dial are operated, the operation signal is input to the microcomputer 106.

  The display unit 108 includes a display device 10b such as an LCD (Liquid Crystal Display). The display unit 108 displays various display data transmitted from the microcomputer 106 on the display device 10b. For example, the track number of the disc being reproduced, the TOC data of the disc being reproduced, various operation modes of the data reader 10 (during rotational movement or disc search, etc.), the opening / closing state of the exchange port 100, and the like are displayed.

  The exchange port opening / closing control motor driver 109 drives an exchange port opening / closing control motor 115 for opening / closing the exchange port 100 based on a control signal transmitted from the microcomputer 106.

  The rotary tray control motor driver 110 drives a rotary tray control motor 102 for rotating the rotary tray 101 based on a control signal transmitted from the microcomputer 106.

  The disk arm control motor driver 111 drives a disk arm control motor (not shown) for operating the disk arm 103 based on a control signal transmitted from the microcomputer 106.

  A DSP (Digital Signal Processor) 112 converts the content data output from the pickup unit 113 into a data format that can be processed by the microcomputer 106 and transmits the data to the microcomputer 106.

  The pickup unit 113 reads disc-related data, content data, copyright data, and the like recorded in advance on a disc set in the playback device (not shown).

  The load / unload SW 114 reads disk-related data from the disk when a disk is newly set to the playback apparatus (not shown), or when the disk is released (ejected) from the playback apparatus. An instruction to clear the disk-related data or the like that has already been read and transmitted to the data processing device 20 is transmitted to the data processing device 20.

Next, the data processing device 20 will be described with reference to FIG.
The data processing device 20 includes a microcomputer 20a, an I / F 20b, a communication unit 20c, an HDD 20d, a decoder 20e, an output unit 20f, a display unit 20g, an input unit 20h, and the like.

  The microcomputer 20a includes a CPU, a ROM, and a RAM (not shown), and comprehensively controls the data processing device 20 by executing a program stored in the ROM. The ROM stores a main control program and various application programs for controlling the data processing device 20 to realize various functions, and the RAM stores execution files of these various programs and various data generated during the execution. Is temporarily stored.

  The microcomputer 20a stores the disk related data and copyright data of each disk read by the data reading devices 10-1, 10-2, and 10-3 in the HDD 20d. At this time, the microcomputer 20a creates content list data for displaying the content list of all the discs currently stored in the data readers 10-1, 10-2, 10-3 based on the disc related data. And stored in the HDD 20d. This content list data is composed of records for all the content data of all the disks stored in the data reading devices 10-1, 10-2, 10-3.

  In each record, data such as a content number, a content name (for example, a song title or an image name), an artist name, a disc name in which the content data is recorded, and a disc number are recorded. Here, the disk number is set by the user or automatically set by the microcomputer 20a.

  The content list data is updated by the microcomputer 20a every time a disc is set in or ejected from any of the data readers 10-1, 10-2, and 10-3.

  The microcomputer 20a displays the content of the content list data on the display unit 20g according to the input instruction. Further, the microcomputer 20a uses the display contents of the content list data as the key to the detailed contents of the disc related data (for example, the device ID of the device in which the disc is stored, the disc name or the initial of the content name, etc.). And has a function of sorting. Further, it has a function of searching (character search) a disc on which content data matching the input content name (or a part thereof) is recorded based on the content list data and displaying the search result. As a result, the user can customize and display the contents of the content list data according to his / her preference, thereby facilitating disc selection.

  The microcomputer 20a reads all the disks stored in the data readers (data readers 10-1, 10-2, 10-3) that are currently reading content data from the content list data. Alternatively, a flag indicating that reading is impossible is set at a predetermined position of the record relating to all contents on all disks (for example, “1” is set when reading is possible, and “0” is set when reading is not possible). When the reading of the content data is completed and the data reading apparatus shifts to the stop state, the microcomputer 20a changes the flag indicating that the content data cannot be read to a flag indicating that the content data can be read. The flag data is identification information for identifying whether or not the content data can be read.

  Note that the microcomputer 20a may not display a list for all the disks on which a flag indicating that reading is impossible is set, or for the content data of all the disks.

  The microcomputer 20a transmits the content list data and flag data indicating whether or not the content data can be read to the slave units 40-1 and 40-2.

  The microcomputer 20a performs disk operation such as selecting a disk based on disk management data formed by a combination of the device IDs of the data reading devices 10-1, 10-2, and 10-3 and the slot number on the rotary tray 101. I do. This disk management data is created (updated) by the microcomputer 20a each time a disk is set in or ejected from any of the data readers 10-1, 10-2, 10-3.

  The content of the disc management data may be different from the disc number (recorded in each record of the content list data) used when the user performs a disc operation. In this case, LUT (Look Up Table) data indicating the correspondence between the contents of the disk management data and the disk number is stored in the HDD 20d, and the microcomputer 20a refers to this LUT when performing disk operations. Do.

  The microcomputer 20a reproduces the content data acquired from the data readers 10-1, 10-2, 10-3 and the network by itself (displays on the display unit 20g, or causes the output unit 20f to emit sound, etc.) .)), When the content data is decoded by the decoder 20e and is not reproduced by the own device (that is, when reproduced by the child devices 40-1 and 40-2), the content data is not decoded. To the slave units 40-1 and 40-2.

  The I / F 20b is an interface (for example, a serial interface such as RS-232C or IEEE1394) for transmitting and receiving data to and from the data reading devices 10-1, 10-2, and 10-3 via the connection line 2. .).

  The communication unit 20c includes an interface for transmitting and receiving data to and from the slave units 40-1 and 40-2 via the connection line 3, and is external to the content distribution server 30 and the like via a network such as the Internet. An interface for transmitting and receiving data to and from the device is provided.

  The HDD 20d is a readable / writable storage device, and the decoder 20e receives content data transmitted from the data readers 10-1, 10-2, 10-3, a network, and the like in each data format of the content data ( For example, decoding is performed according to MIDI (Musical Instrument Digital Interface) format or MPEG-2 format.

  The output unit 20f includes a speaker (or a speaker system including a plurality of speakers), and converts various audio data (for example, contents of decoded content data) transmitted from the microcomputer 20a into analog signals. Then, the sound is emitted from the speaker. The output unit 20f corresponds to various surround settings (for example, Dolby Digital (registered trademark), 5.1 channel, etc.).

  The display unit 20g includes a display device such as an LCD (Liquid Crystal Display) or a plasma display, and various display data transmitted from the microcomputer 20a (for example, contents of decoded content data such as moving images and still images). Is displayed on the display device.

  The input unit 10h includes input keys for inputting various instructions for controlling the data processing device 20 and the data reading devices 10-1, 10-2, and 10-3, a jog dial that is used when selecting instruction contents, and the like. .

  Next, the subunit | mobile_unit 40-1 is demonstrated with reference to FIG. In addition, since the subunit | mobile_unit 40-2 has the structure same as the subunit | mobile_unit 40-1, below, detailed description about the subunit | mobile_unit 40-2 is abbreviate | omitted.

  The slave unit 40-1 includes a microcomputer 40a, a communication unit 40b, a decoder 40c, an output unit 40d, a display unit 40e, an input unit 40f, and the like.

  The microcomputer 40a includes a CPU, a ROM, and a RAM (not shown), and comprehensively controls the slave unit 40-1 by executing a program stored in the ROM. The ROM stores a main control program and various application programs for controlling the slave unit 40-1, and the RAM temporarily stores execution files of these various programs and various data generated during the execution. Is done.

  When receiving the content list data from the data processing device 20, the microcomputer 40a stores the content list data in the memory and displays the contents on the display unit 40e.

  When the microcomputer 40a receives flag data indicating whether or not the content data can be read from the data processing device 20, the microcomputer 40a updates the content list data already transmitted from the data processing device 20 and stored in the memory based on the flag data. At this time, the microcomputer 40a updates the display content of the content list data being displayed on the display unit 40e.

Here, an example of the display screen of the content list data displayed on the display unit 40e is shown in FIG.
For the currently selected record, the entire display location of the record (content number “1162”) is highlighted as indicated by reference numeral B1 in the figure.

  If there is a flag record indicating that the current content data cannot be read in the content list data, the microcomputer 40a displays a flag record indicating that the content list data cannot be read on the display screen displaying the contents of the content list data. Only the display format of the content (song) is displayed so as to be different from the display format for other content (that is, identifiable display is performed so as to identify whether or not the content data can be read).

  For example, as indicated by reference symbol B2 in FIG. 7A, the microcomputer 40a reversely displays the display portion of the content number “1165” or displays the content number indicated by reference symbol B3 in FIG. 7B. The entire display location of “1165” is displayed with reduced brightness.

  Even when sorted by song titles, the corresponding content numbers are displayed so as to be distinguishable from other content numbers indicating readability.

  Note that the microcomputer 40a may not display the list for all the disks on which the flag indicating that reading is impossible or the content data of all the disks is set.

  Here, the microcomputer 20a of the data processing device 20 also has a function of displaying the contents of the content list data by the microcomputer 40a.

Returning to FIG.
The communication unit 40b includes an interface (for example, an interface according to Home PNA or the like) for transmitting and receiving data to and from the data processing device 20 via the connection line 3.

  The decoder 40c decodes the content data transmitted from the data processing device 20 according to each data format of the content data.

  The output unit 40d includes a speaker (or a speaker system including a plurality of speakers), and converts various audio data (for example, contents of decoded content data) transmitted from the microcomputer 40a into analog signals. Then, the sound is emitted from the speaker. The output unit 40d corresponds to various surround settings (for example, 5.1 channel).

  The display unit 40e includes a display device such as an LCD, and displays various display data transmitted from the microcomputer 40a. For example, as shown in FIG. 7, the display unit 40 e displays information such as the name of a disk and the title of a song stored in the data readers 10-1, 10-2, and 10-3.

  The input unit 10h includes input keys for inputting various instructions for controlling the data processing device 20 and the data reading devices 10-1, 10-2, and 10-3, a jog dial that is used when selecting instruction contents, and the like. .

  In addition, the subunit | mobile_unit 40-1 may enable it to reproduce | regenerate content data, such as DVD. In this case, the display unit 40e includes a display device such as a plasma display in addition to the LCD, and various display data transmitted from the microcomputer 20a (for example, contents of decoded content data such as moving images and still images). ) Is displayed on the display device.

As described above, the data processing device 20 performs the content list data for displaying a list of content data recorded on the disk currently stored in the data reading devices 10-1, 10-2, and 10-3. If there is a disc that is currently reading content data, a flag indicating that the content data cannot be read is set for each record related to the content data of the disc in the content list data.
When the slave units 40-1 and 40-2 receive the content list data from the data processing device 20 and display it, if there is a flag record indicating that the content data cannot be read in the content list data, The display format for the content data recorded on the disc corresponding to the record is displayed differently (eg, reverse display) so as to be distinguishable from the display format for the content data recorded on the other disc.

  Therefore, for example, when content data is currently being read from a disk stored in the data reading device 10-1, another (or the same) stored in the same data reading device 10-1 is used. Although content data cannot be read from the disc, the user can see at a glance which discs the content data can be read by browsing the display contents of the content list data. is there. In addition, even if a disc that is currently unreadable is selected by mistake, it will be displayed that the disc cannot be read, so the user can clearly see why the content data on the disc he has chosen cannot be read. Can be recognized. In particular, the disc number (displayed disc number) used when the user operates the disc does not indicate the storage location where the disc is actually stored, or conditions other than the disc number (eg, song title) The above-mentioned effect becomes even more remarkable when sorted by.

  The description in the present embodiment shows an example of the data processing system, the data processing apparatus, and the program according to the present invention, and is not limited to this. The detailed configuration and detailed operation of the data processing system 1 and the data processing device 20 in the present embodiment can be appropriately changed without departing from the spirit of the present invention.

  For example, the disks loaded in the data readers 10-1, 10-2, 10-3 are not only for CDs and DVDs, but also for CD-R (CD-Recordable), CD-RW (CD-ReWritable), etc. Applicable.

  In addition, the display of the list data is performed by the slave units 40-1 and 40-2. However, the display is not limited to this and may be performed by the data processing device 20.

  Further, display data controlled by the flag may be sent to the slave units 40-1 and 40-2. In this case, since the slave units 40-1 and 40-2 do not have to generate display data from the content list data and the flag, the processing load is reduced.

  Further, even when content data reading is erroneously designated from the data processing device 20 for a disc that cannot be read at present, a display indicating that the reading is not possible may be displayed on the display unit 20g.

  Moreover, the data processor 20 may perform the display operation similar to the above-mentioned subunit | mobile_unit 40-1 and 40-2 independently or in parallel.

It is a figure which shows the structure of the data processing system to which this invention is applied. It is a figure which shows schematic structure of the accommodating part which accommodates the some disc with which the data reader to which this invention is applied is accommodated. (A) is a timing chart of signals PH1 to PH3 output from the first to third sensors shown in FIG. 2, and (b) is a signal PH1, PH2 output from the first and second sensors shown in FIG. And a timing chart of a disk presence / absence detection signal output from the disk presence / absence detection sensor. It is a figure which shows the internal circuit of the data reader to which this invention is applied. It is a figure which shows the internal structure of the data processing apparatus to which this invention is applied. It is a figure which shows the internal structure of the subunit | mobile_unit shown in FIG. It is an example of the display screen of a content list.

Explanation of symbols

1 Data Processing System 10 Data Reading Devices 10-1 to 10-3 Data Reading Device 20 Data Processing Device 20a Microcomputer 20b I / F
20c communication unit 20d HDD
20e Decoder 20f Output unit 20g Display unit 20h Input unit 30 Content distribution server 40a Microcomputer 40b Communication unit 40c Decoder 40d Output unit 40e Display unit 40f Input units 40-1, 40-2 Slave unit 100 Exchange port 101 Rotary tray 102 Rotary tray Control motor 103 Disc arm 104 Sensor support plate 104a First sensor 104b Second sensor 104c Third sensor 104d Disc presence / absence detection sensor 105 Substrate 106 Microcomputer 107 Input unit 108 Display unit 109 Exchange port opening / closing control motor driver 110 Rotary tray control motor driver 111 Disc arm control motor driver 112 DSP
113 Pickup unit 114 Load / unload SW
115 Exchange port opening / closing control motor

Claims (10)

One or more data readers that store one or more recording media on which content data is recorded and read the content data from the recording medium;
A data processing device that controls the data reading device in response to an input request for content data and acquires the content data;
One or a plurality of slave units that perform an acquisition request for content data stored in the data reading device to the data processing device;
A data processing system comprising:
The data processing device includes:
Identification information that makes it possible to identify a recording medium or content data stored in a data reader that is acquiring content data and a recording medium or content data that is stored in a data reader that is not acquiring content data. Transmitted to the one or more slave units,
The slave is
When the identification information is received, a notification operation is executed based on the identification information. The data processing device or the slave is
The data processing system according to claim 1, wherein a list of content data that can be acquired from the one or more data readers is created and displayed. The data processing device or the slave is
The data processing system according to claim 2, wherein a list item related to the content data that cannot be acquired in the list is identifiable based on a predetermined display format. One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A data processing device for acquiring the content data requested for acquisition,
Identification information that makes it possible to identify a recording medium or content data stored in a data reader that is acquiring content data and a recording medium or content data that is stored in a data reader that is not acquiring content data. A data processing apparatus characterized by transmitting to a slave unit.   The data processing apparatus according to claim 4, wherein a list of content data that can be acquired from the one or more data reading apparatuses is created and displayed, and is transmitted to the slave unit.   The list item related to the unacquireable content data in the list is displayed in an identifiable manner based on a predetermined display format, and the list item is displayed in an identifiable manner on the slave unit based on the display format. The data processing apparatus according to claim 5, wherein information is transmitted. One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A computer that controls the data processing device that acquires the content data requested for acquisition,
Identification information that makes it possible to identify a recording medium or content data stored in a data reader that is acquiring content data and a recording medium or content data that is stored in a data reader that is not acquiring content data. A program for realizing the function to send to the handset. One or more data readers that store one or more recording media on which content data is recorded and read the content data from the recording medium;
A data processing device for controlling the data reading device in response to an input request for acquiring content data and acquiring the content data;
One or a plurality of slave units that perform an acquisition request for content data stored in the data reading device to the data processing device;
A data processing system comprising:
The data processing device or the slave is
A list of content data that can be acquired from the one or more data readers is created and displayed, and recording media or content data stored in the data reader that is acquiring the content data are not displayed in a list. Data processing system. One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input content data acquisition request, A data processing device for acquiring the content data requested for acquisition,
Create and display a list of content data that can be acquired from the one or more data reading devices, and do not display the list for recording media or content data stored in the data reading device from which content data is being acquired. A data processing apparatus. One or more data readers that store one or more recording media on which content data is recorded and that can read the content data from the recording medium are controlled in response to an input request to obtain content data. A computer that controls a data processing device that acquires content data requested for acquisition,
A list of content data that can be acquired from the one or more data readers is created and displayed, and the list is not displayed for recording media or content data stored in the data reader that is acquiring the content data. A program for realizing the functions to control.

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