JP2006172616A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device capable of shortening waiting time during the spinning-up of a disk. <P>SOLUTION: When a tray is closed, predetermined disk information previously stored in a disk is saved in a memory. When power is turned ON, determination is made as to the storage of predetermined information in the memory (step S22). When the storage of the predetermined information is determined (YES in the step S22), the predetermined information is obtained from the memory (step S24), and the obtained predetermined information is analyzed (step S32). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a disk device, and more particularly to a disk device capable of recording and / or reproducing video / audio data on a disk.

  Conventionally, proposals have been made to reduce the waiting time that occurs when a disc such as a CD (Compact Disc) or DVD (Digital Versatile Disc) is started.

  For example, in Patent Document 1, disk information is returned to the host computer after completion of spin-up of a disk with high recording possibility. This makes it possible to shorten the disc recognition time when a recordable disc is inserted.

  Further, in Patent Document 2, when a reproduction command for an information signal recorded on an optical disk is received, the information signal recorded on the optical disk is read in parallel with the optimization of the recording system after the reproduction system is optimized. Store in the storage. As a result, actual reproduction can be performed simultaneously with the end of the optimization of the recording system, and the time required from the start of the optical disk device to the actual reproduction operation can be shortened.

Japanese Patent Application Laid-Open No. 2003-228561 discloses a technique that has a function of determining a recording start waiting time in a disk recording / reproducing device used as an external storage device of a host computer and realizes shortening of the recording start waiting time.
JP 2003-85882 A JP 2004-227615 A JP 2002-342936 A

  However, Patent Documents 1 to 3 do not shorten the waiting time due to spin-up from disc recognition to disc information analysis.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a disk device capable of reducing the waiting time during disk spin-up.

  According to one aspect of the present invention, a disk device includes: an input unit for receiving an instruction input from a user; a data receiving unit for receiving data; and a tray for inserting a disk when the tray is closed. A first determination unit for determining whether or not a disc has been inserted, and a first reading for reading predetermined information on the disc when the first determination unit determines that the disc is inserted Means, storage means for storing predetermined information read by the first reading means, and spin-up execution for performing disk spin-up processing when a power-on instruction is received by the input means Means. The spin-up execution means is a second judgment means for judging whether or not the predetermined information is stored in the storage means, and when the second determination means determines that the predetermined information is stored And a second reading means for reading predetermined information from the storage means, and if the second determining means determines that the predetermined information is not stored, whether or not a disc is inserted. A third determination means for determining; a third reading means for reading predetermined information from the disk when the third determination means determines that the disk is inserted; and a second and second And analyzing means for analyzing the predetermined information read by the three reading means. The disk device is for reproducing data stored in the disk based on the analysis result by the analysis means, and for writing the data received by the data receiving means to the disk based on the analysis result by the analysis means. When the tray is opened, the recording means, the fourth determining means for determining whether or not the predetermined information exists in the storage means, and the fourth determining means determine that the predetermined information exists. And an erasing unit for erasing predetermined information from the storage unit.

  A disk device according to another aspect of the present invention includes an input means for receiving an instruction input from a user, a storage means for storing predetermined information stored in advance on the disk, and a power-on instruction by the input means. And a spin-up execution means for performing a spin-up process on the disk, and the spin-up execution means is configured to determine whether or not predetermined information is stored in the storage means. When the determination means and the first determination means determine that the predetermined information is stored, the acquisition means for acquiring the predetermined information from the storage means, and the predetermined information acquired by the acquisition means Analysis means for performing analysis, and further comprising reproduction means for reproducing data stored on the disk based on the analysis result of the analysis means.

  Preferably, the apparatus further comprises data receiving means for receiving data and recording means for writing data received by the data receiving means to the disc based on the analysis result by the analyzing means.

  Preferably, when the disc insertion slot for inserting the disc is closed, the disc is inserted by the second judging means for judging whether or not the disc has been inserted, and the second judging means. When it is determined that the read information is read, a read unit for reading predetermined information on the disc and a write unit for writing the predetermined information read by the read unit to the storage unit are further provided.

  Preferably, when a disc insertion slot for inserting a disc is opened, a third determination unit for determining whether or not predetermined information exists in the storage unit, and a third determination unit And an erasing unit for erasing the predetermined information from the storage unit when it is determined that the information is present.

  Preferably, the spin-up execution unit includes a fourth determination unit for determining whether or not a disc is inserted when the first determination unit determines that the predetermined information is not stored. And a reading means for reading predetermined information from the disk when the fourth determining means determines that the disk is inserted, wherein the analyzing means reads the predetermined information read by the reading means. Analyze

  According to the present invention, when the tray of the disk device is closed, the predetermined information of the inserted disk is read and stored in the memory. Therefore, when a power-on instruction is received, the waiting time during spin-up can be shortened by acquiring and analyzing predetermined information stored in the memory.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  With reference to FIG. 1, a DVD recorder 100 which is an aspect of a disk device according to an embodiment of the present invention will be described. FIG. 1 is a block diagram showing a hardware configuration of DVD recorder 100.

  The DVD recorder 100 includes a memory 112 for storing data, a system control circuit 110 for executing predetermined processing based on the stored data and an instruction input from the outside, and a user's from the outside. An operation unit 122 for receiving an instruction input, a light receiving unit 124 for receiving a remote control signal and outputting a predetermined control signal to the system control circuit 110, and measuring a time and outputting the signal to the system control circuit 110 And a display unit 128 for displaying information representing the operating state of the DVD recorder 100. The operation state displayed on the display unit 128 is, for example, time information in a DVD recorder, a program recording state, and the like.

  Referring again to FIG. 1, DVD recorder 100 further includes an antenna 190, a tuner 130 for selecting a predetermined radio wave from the received radio waves, and an external input unit for receiving external video and audio signal inputs. 132, a Moving Picture Experts Group (MPEG) encoder 152 for compressing an input signal based on a predetermined process, and a hard disk device 140 for storing digital data based on an instruction from the system control circuit 110 , A DVD drive 170 for recording and reproducing video / audio data by driving a DVD 172 as a disk recording medium, an MPEG decoder 154 for decoding a compressed video / audio signal, and video A signal for displaying the operating state of the DVD recorder 100 and other information on the display screen OSD (On Screen Display) image generation circuit 114, a synthesis circuit 158 for synthesizing and outputting the signal generated by OSD image generation circuit 114 and the output signal from MPEG decoder 154, and input digital A D / A (Digital to Analog) converter 160 for converting the signal into an analog signal and outputting it, and an output unit 168 for outputting the video / audio signal to the television 400 are included. DVD recorder 100 is connected to television 400 via transmission cable 192. The hard disk device 140 includes a data recording / reproducing head 142 for recording and reproducing data and a hard disk 144 for storing data.

  In addition, although it demonstrates using the DVD recorder 100 which incorporates the DVD drive apparatus 170 and the hard-disk apparatus 140 as a disk apparatus concerning embodiment of this invention, only the DVD drive apparatus 170 may be sufficient. Further, it may be a disc device that can only be played back, such as a DVD player or a CD player. In the case of a CD player, the data stored on the CD may be only audio data.

  Normally, in such a disk device such as the DVD recorder 100, when the power is turned on, the video / audio data recorded on the DVD 172 can be played back or recorded (hereinafter referred to as “playback / recordable state”). In addition, there is a waiting time due to spin-up.

  Here, the waiting time due to spin-up after power-on refers to the time required for the next processing.

(1) Disc recognition,
(2) Reading predetermined information in the disc (hereinafter referred to as “disc information”),
(3) Analysis of disc information.

  By going through the processes (1) to (3), the playback / recording is possible.

  In the process (1), it is determined whether or not a disc is inserted and what type of disc is a CD or a DVD. In the process (2), the serial number of the disc, the number of titles, the position information of each, the chapter image address, etc., recorded in advance on the disc are read out. Such information is information necessary for reproduction and recording (minimum necessary information). In the process (3), the disk information read out in the process (2) is analyzed. Thereby, for example, the playback time of the entire disc, the free capacity of the disc, etc. can be known.

  The processes (1) to (2) usually require 4 to 5 seconds from when the disk starts to rotate until the disk information can be read.

  The DVD recorder 100 according to the embodiment of the present invention reduces the waiting time during the processes (1) and (2) after the power is turned on. Hereinafter, processing executed by the system control circuit 110 of the DVD recorder 100 according to the embodiment of the present invention will be described with reference to FIGS.

  FIG. 2 is a flowchart showing the flow of tray closing processing executed by the system control circuit 110 in the DVD recorder 100 according to the embodiment of the present invention. This process is a process executed by the system control circuit 110 when the user operates the operation unit 122 to input a tray close instruction, for example.

  Referring to FIG. 2, first, system control circuit 110 transmits a control signal to DVD drive device 170 to close the tray (step S1). Next, the system control circuit 110 determines whether or not a disc is inserted in the tray (step S2). If it is determined in step S2 that a disc is inserted, the process proceeds to step S4. On the other hand, if it is determined in step S2 that a disc is not inserted, this process is terminated.

  In step S <b> 4, the system control circuit 110 drives the DVD drive device 170 to read the disk information recorded in advance in the table format on the DVD 172. Next, the system control circuit 110 saves the read disk information table in, for example, a non-illustrated nonvolatile memory (hereinafter simply referred to as “memory 112”) in the memory 112 (step S6), and ends this processing. .

  Note that the disk information may be stored in a memory other than the memory 112, for example, the hard disk 144, as long as it is a non-volatile memory.

  If the disc insertion slot is not a tray, for example, the processing in steps S2 to S4 may be performed without performing the processing in step S1.

  As described above, in the DVD recorder 100 according to the embodiment of the present invention, when the tray (not shown) of the DVD drive device 170 is closed, the minimum necessary disk information is saved in the memory 112 in advance. deep. Therefore, the memory 112 stores information such as the serial number of the disc, the number of titles, the position information of each, and the chapter image address.

  FIG. 3 is a flowchart showing a tray opening process executed by the system control circuit 110 in the DVD recorder 100 according to the embodiment of the present invention. This process is a process executed by the system control circuit 110 when the user operates the operation unit 122 to input a tray open instruction, for example.

  Referring to FIG. 3, first, system control circuit 110 transmits a control signal to DVD drive device 170 to open the tray (step S11). Next, the system control circuit 110 determines whether disk information exists in the memory 112 (step S12). If it is determined in step S12 that disc information exists, the process proceeds to step S14. On the other hand, if it is determined in step S12 that there is no disc information, this process is terminated.

  If the disc insertion slot is not a tray, for example, the processing in steps S12 and S14 may be performed by detecting that the disc has been ejected without performing the processing in step S11.

  In step S14, the system control circuit 110 deletes the disk information from the memory 112, and ends this process.

  By doing so, the disc information of the DVD 172 inserted between the time when the tray is closed and the time when the tray is opened can be stored in the memory 112.

  Next, processing when the power is turned on by the user will be described using the flowchart of FIG. FIG. 4 is a flowchart showing a flow of processing when the power is turned on, which is executed by the system control circuit 110 of the DVD recorder 100 according to the embodiment of the present invention. This process is executed by the system control circuit 110 after the user operates the operation unit 122 to input a power-on instruction and power is supplied to the system control circuit 110, for example.

  Referring to FIG. 4, first, system control circuit 110 determines whether or not disk information is in memory 112 (step S22). When determining that the disk information exists in the memory 112, the system control circuit 110 acquires the disk information from the memory 112 (step S24).

  Next, the system control circuit 110 determines whether or not the serial number included in the disc information matches the serial number of the DVD 172 inserted (step S26). If it is determined that the serial numbers match (YES in step S26), the process proceeds to step S32. If it is determined that the serial numbers do not match (NO in step S26), the process proceeds to step S2 of the tray closing process shown in FIG.

  On the other hand, when it is determined in step S22 that the disc information is not in the memory 112 (NO in step S22), the system control circuit 110 determines whether or not a disc (DVD 172) is inserted (step S28). . This process corresponds to the above (1).

  If it is determined in step S28 that a disc (DVD 172) is inserted (YES in step S28), the system control circuit 110 drives the DVD drive unit 170 to obtain disc information of the inserted DVD 172. Read (step S30). This process corresponds to the above (2). If it is determined in step S28 that the disc (DVD 172) is not inserted (NO in step S28), this process is terminated.

  When the process of step S30 ends, the process proceeds to step S32.

  In step S32, the system control circuit 110 analyzes the disk information acquired in step S24 or the disk information read in step S30. This process corresponds to the above (3). When the process of step S32 ends, the system control circuit 110 detects that the playback / recording enabled state has been reached (step S34). This process is completed.

  The DVD recorder 100 according to the embodiment of the present invention saves disk information of the DVD 172 in the memory 112 in advance in the tray closing process shown in FIG. 2 (see step S6). Therefore, if disk information exists in the memory 112 after the power is turned on, the above (1) and (2) (steps S28 and S30) can be omitted. Thus, once the disc information is stored in the memory 112, it is possible to shift to a playback / recordable state at a higher speed than directly reading the disc information from the DVD 172.

  When the tray closing process shown in FIG. 2 is not executed when the power is turned on, the processes (1) and (2) (steps S28 and S30) are executed.

  In addition, since the information saved in the memory 112 in step S6 in FIG. 2 is the minimum data necessary for reproduction and recording, the waiting time during the spin-up is almost without any burden on the memory 112. Can be shortened.

  In step S26 of FIG. 4, it is confirmed whether the serial numbers included in the disc information match. This process is provided in consideration of the case where the tray is irregularly opened without going through the tray opening process as shown in FIG. Thereby, the consistency between the disk information saved in the memory 112 and the disk information of the DVD 172 actually inserted can be maintained.

  If the serial numbers do not match in step S26 in FIG. 4, it is determined in step S2 in FIG. 2 whether or not a disc has been inserted. If a disc is inserted (YES in step S2), the disc information of the inserted DVD 172 is read (step S4). Then, the read disk information is overwritten in the memory 112 and saved (step S6). Thereafter, for example, the process may be transferred again to step S22 in FIG. 4 or the process may be terminated. If no disc is inserted in step S2, the process ends.

  Note that the processing shown in step S26 may be omitted. Further, if the disc information is consistent, the consistency may be determined based on information other than the serial number.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a block diagram showing the hardware constitutions of the DVD recorder which concerns on embodiment of this invention. It is a flowchart which shows the flow of the process of a tray close which the system control circuit in the DVD recorder concerning embodiment of this invention performs. It is a flowchart which shows the flow of a tray open process which the system control circuit in the DVD recorder which concerns on embodiment of this invention performs. It is a flowchart which shows the flow of the process at the time of power activation which the system control circuit of the DVD recorder which concerns on embodiment of this invention performs.

Explanation of symbols

  100 DVD recorder, 110 system control circuit, 112 memory, 114 OSD image generation circuit, 122 operation unit, 124 light receiving unit, 126 timing circuit, 128 display unit, 130 tuner, 132 external input unit, 140 hard disk device, 142 data recording / reproduction Head, 144 Hard disk, 152 MPEG encoder, 154 MPEG decoder, 158 synthesis circuit, 160 D / A converter, 168 output, 170 DVD drive, 172 DVD, 190 antenna, 400 TV.

Claims (6)

Input means for accepting input of instructions from the user;
Data receiving means for receiving data;
First determination means for determining whether or not the disc has been inserted when the tray for inserting the disc is closed;
First reading means for reading predetermined information on the disk when the first determination means determines that the disk is inserted;
Storage means for storing the predetermined information read by the first reading means;
A spin-up execution means for performing a spin-up process of the disk when a power-on instruction is received by the input means;
The spin-up execution means includes
Second determination means for determining whether or not the predetermined information is stored in the storage means;
Second reading means for reading the predetermined information from the storage means when the second determination means determines that the predetermined information is stored;
Third judgment means for judging whether or not the disc is inserted when the second judgment means judges that the predetermined information is not stored;
Third reading means for reading the predetermined information from the disk when the third determination means determines that the disk is inserted;
Analyzing means for analyzing the predetermined information read by the second and third reading means,
Based on the analysis result by the analyzing means, reproducing means for reproducing the data stored in the disk;
Recording means for writing the data received by the data receiving means to the disc based on the analysis result by the analyzing means;
Fourth determination means for determining whether or not the predetermined information exists in the storage means when the tray is opened;
A disk device further comprising: an erasing unit for erasing the predetermined information from the storage unit when the fourth determining unit determines that the predetermined information exists. Input means for accepting input of instructions from the user;
Storage means for storing predetermined information stored in advance on the disk;
A spin-up execution means for performing a spin-up process of the disk when a power-on instruction is received by the input means;
The spin-up execution means includes
First determination means for determining whether or not the predetermined information is stored in the storage means;
An acquisition means for acquiring the predetermined information from the storage means when the first determination means determines that the predetermined information is stored;
Analysis means for performing analysis of the predetermined information acquired by the acquisition means,
A disc apparatus further comprising a reproducing unit for reproducing data stored on the disc based on an analysis result by the analyzing unit. Data receiving means for receiving data;
3. The disk device according to claim 2, further comprising a recording unit for writing the data received by the data receiving unit to the disk based on an analysis result by the analyzing unit. Second discriminating means for discriminating whether or not the disc is inserted when the disc insertion slot for inserting the disc is closed;
A reading means for reading the predetermined information of the disk when the second determination means determines that the disk is inserted;
3. The disk device according to claim 2, further comprising a writing unit for writing the predetermined information read by the reading unit to the storage unit. Third discriminating means for judging whether or not the predetermined information exists in the storage means when a disc insertion slot for inserting the disc is opened;
3. The disk device according to claim 2, further comprising an erasing unit for erasing the predetermined information from the storage unit when the third determining unit determines that the predetermined information exists. The spin-up execution means includes
A fourth determination means for determining whether or not the disc is inserted when the first determination means determines that the predetermined information is not stored;
A read means for reading the predetermined information from the disk when the fourth determination means determines that the disk is inserted;
The disk apparatus according to claim 2, wherein the analysis unit analyzes the predetermined information read by the reading unit.

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