JP2012014789A - Hybrid picture recording/reproducing device, control method, program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve long time drive of a battery driven in a hybrid picture recording/reproducing device in which a dynamic storage device such as an optical disk and a large capacity nonvolatile static memory such as a semiconductor memory are combined.SOLUTION: The battery driven hybrid picture recording/reproducing device in which a dynamic storage device and a large capacity nonvolatile static memory are combined, includes a remaining amount detector for detecting the remaining amount of the battery, and detects the remaining amount of the battery at least in three ranges. The hybrid picture recording/reproducing device is operated in different operation modes according to the detected three ranges, thereby elongating the battery driven operation time while degrading of convenience is kept minimum.

Description

  The present invention provides a storage device (dynamic storage device) that requires a relatively long time to access, such as an optical disk device, but requires a drive by a motor, etc., and a flash that has a fast access and does not require a drive by a motor or the like The present invention relates to a hybrid recording / reproducing apparatus combined with a memory (static storage device) such as a memory.

  Currently, video recording / playback devices for video recording (AV) using BD (Blu-ray Disc), DVD, etc. as recording media, and AV recording / playback devices using HDD (Hard Disk Drive) are in widespread use. Televisions with built-in AV recording / playback devices are widely used. In addition, a recording / playback apparatus for AV which has a portable type (portable type) in which the optical disk device or the HDD device is driven by a battery (storage battery) has been proposed.

  In the case of a recording / playback apparatus using an optical disk apparatus (sometimes referred to as an optical disk drive), recording / playback on an optical disk is not always easy to use, for example, preparation time is required. Further, both the optical disk device and the HDD device must be driven by a motor such as a spindle motor and require electric power for driving the motor. Therefore, a long time is required when a storage battery (hereinafter also referred to as a battery) is driven. There is a problem that driving is difficult. In particular, since a large amount of electric power is required at the time of starting the motor, there is a problem that when the motor is repeatedly started and stopped during use, the power consumption increases and it becomes difficult to drive for a long time. is doing. As described above, in the specification of the present application, “recording / reproducing” means “recording and / or reproducing”.

  Japanese Patent Application Laid-Open No. 2004-133867 describes a combination of an HDD device and a PC card (nonvolatile memory), and switching to storage in a non-volatile memory with low power consumption when the remaining battery level is low in consideration of the remaining battery level. Has been.

  Patent Document 2 discloses a technology in which an optical disc drive has a normal operation mode and a power saving operation mode that operates with lower power consumption, and shifts to the power saving operation mode when access to the optical disc is stopped for a certain period of time. Yes.

  In addition, a hybrid recording / playback apparatus has been proposed in which an SDRAM (Synchronous Dynamic RAM) is combined with an optical disk apparatus to improve usability. FIG. 10 is a diagram showing an outline of a conventional hybrid recording / playback apparatus in which an SDRAM used as a cache memory is combined with an optical disk apparatus.

  In FIG. 10, reference numeral 100 denotes the entire hybrid recording / playback apparatus. In particular, the optical disk device 70 is used as a large-capacity storage device, and the memory unit 20 is composed of an SDRAM. Hereinafter, this is referred to as a hybrid optical disc apparatus. The hybrid optical disc device 100 includes a power source unit / input / output unit 10 of the hybrid optical disc device, a memory unit 20, a control unit / signal processing unit 30 of the optical disc device 70, and a drive unit 40 of the optical disc device 70.

  The power supply unit / input / output unit 10 includes a display unit 11 connected to the bus 1, a power supply / battery 12, a remaining amount detection unit 13 for detecting the remaining amount of battery, and data compression / decompression for input / output data. A processing unit 14, an input switching unit 15, a command / device control unit 16 for controlling the operation of the power supply unit / input / output unit 10, and a RAM 17. The input switching unit 15 includes a TV as an external input. A broadcast receiver 5, a camera 6, and other devices 7 are connected. The bus 1 is provided with an interface 2 for connection to other devices.

  As already described, the memory unit 20 is provided with the SDRAM 21 and is connected to the bus 4 via the SDRAM bus 25. Although details are omitted here, the SDRAM 21 is performed by DMA transfer using DMACH (direct memory access channel).

  The control unit / signal processing unit 30 of the optical disc apparatus includes a CPU 31 for controlling the entire optical disc apparatus, a PROM 32 in which a control program and the like are stored, and a RAM 33 that operates as a work memory. A unit 34, a reproduction control unit 35, a servo control unit 36, a mechanical / servo control unit 37, and a modulation / demodulation circuit / ECC processing unit 38. The modulation / demodulation circuit / ECC processing unit 38 is connected to the bus 4 and is also controlled by the CPU 31 connected to the bus 4. The bus 4 is provided with an interface 3, and is connected to the power supply unit / input / output unit 10 via the interface 2.

  The drive unit 40 of the optical disc apparatus includes an optical pickup having a laser element, a drive unit for driving the optical pickup, a spindle motor for rotating the optical disc, and the like. Since it can be used, detailed description is omitted here.

  FIG. 11 shows an outline of the operation of the conventional hybrid optical disc apparatus 100 shown in FIG. FIG. 11A is an operation flow when starting up the optical disc apparatus, FIG. 11B is an operation flow when reproducing data from the optical disc, and FIG. 11C is a data recording operation on the optical disc. It is an operation flow at the time.

  11A, when the apparatus is turned on (step 1, hereinafter referred to as S.1) and an optical disk is inserted (S.2), the spindle motor starts to rotate (S .3), the focus servo is turned on (S.4), and the type of the inserted optical disk is determined (S.5). Next, tracking servo is started according to the discriminated optical disc type (S.6), the servo establishment is waited (S.7), the basic data of the optical disc is reproduced (S.8), and the upper system Preparation for recording / reproduction is completed (S.9), and recording to the optical disk or reproduction from the optical disk is performed as needed (S.10).

  Here, the host system refers to the power supply unit / input / output unit 10 connected via the interfaces 2 and 3, and recording on the optical disk refers to recording content data from the TV broadcast receiving unit 5 or the like on the optical disk. The reproduction from the optical disk means that the reproduction data from the optical disk apparatus is output to the display unit 11 and the like for reproduction. In particular, the recording / reproduction of the audio part is not clearly shown, but the configuration for these is well known and omitted.

  As shown in detail in FIG. 11B, at the time of reproduction from the optical disk, the reproduction data is once recorded in the SDRAM 21 (S.11), and further transferred to the host. Here, the host indicates the power supply unit / input / output unit 10 which is a host system, and is finally displayed on the display unit 11.

  Further, as shown in detail in FIG. 11C, the data from the host, that is, the power supply unit / input / output unit 10 is sent as data with a command, so that it is once recorded in the SDRAM 21 and then sent to the optical disc apparatus side. Will be.

  The SDRAM 21 plays a role as a buffer (adjustment / matching of reproduction speed from the disk and transfer speed of the host interface) and a cache memory, and the usability of the optical disk device is improved.

  In addition, the power supply / input / output unit 10 is provided with a remaining amount detection unit 13 for detecting the remaining amount of the battery, so that the remaining amount of the battery can be displayed at all times, and has become smaller than a predetermined capacity. At some point, an alarm can be sounded.

  In this specification, “storage device that needs to be driven by a motor or the like for data recording and / or reproduction” is collectively described as “dynamic storage device”. In this specification, the large-capacity non-volatile memory is a non-volatile memory that has a large capacity such as eMMC (Embedded Multi Media Card) and does not require driving by a motor or the like for recording and / or reproducing data. Means memory. Since the “dynamic storage device” can be defined as “static storage device”, such a memory is collectively indicated as “static storage device”. In the specification of the present application, “data reproduction” is used as a synonym for “data reading”.

JP 11-85332 A (published March 30, 1999) JP 2010-9494 A (published January 14, 2010)

  Patent Document 1 describes a technique of switching to storage in a non-volatile memory that consumes less power when the remaining battery level is low, but is mainly intended for backup when the remaining battery capacity is low. However, it does not realize long-time driving as a device.

  Patent Document 2 describes a technology in which an optical disk drive has a normal operation mode and a power saving operation mode that operates with lower power consumption, and shifts to the power saving operation mode when access to the optical disk is lost for a certain period of time. As a result, a technique for reducing the power consumption of the optical disk drive is shown.

  However, the transition to the power saving operation mode has nothing to do with the remaining battery level, and even if there is sufficient battery capacity, the transition to the power saving mode is required. Not good. In addition, it is not clear what the power saving operation mode is.

  In the technologies shown in FIGS. 10 and 11, the remaining battery level is shown, and the remaining battery level can be checked each time. However, the hybrid recording / playback apparatus differs depending on the remaining battery level. It is not intended to be controlled so as to achieve long-time driving.

In order to solve the above-described problems, in the hybrid recording / reproducing apparatus according to the present invention, a dynamic storage device that needs to be driven by a motor for recording and / or reproducing data and a driving by a motor for recording and / or reproducing data A hybrid recording / playback device with a static storage device that does not require
The hybrid recording / reproducing apparatus further operates the hybrid recording / reproducing apparatus in different operation modes according to the remaining amount of the storage battery, a power supply unit having a storage battery, a remaining amount detection unit for detecting the remaining amount of the storage battery, and Equipment control unit,
The remaining amount detection unit is configured to determine a remaining amount of the storage battery, a first range in which the remaining amount of the storage battery is equal to or less than a first value P1, and a second value that exceeds the first value P1 and is equal to or less than a second value P2. Detecting in a range and at least three ranges of a third range that exceeds the second value P2 and is less than or equal to full charge,
The device control unit drives the hybrid recording / reproducing apparatus in three different operation modes according to the detected three ranges.

  According to this, when there is a sufficient remaining capacity according to the remaining capacity of the storage battery (battery), all the functions of the hybrid recording / playback device can be used, and when the remaining capacity of the battery is slightly reduced, the hybrid recording / playback is possible. Among the functions of the device, the function of high power consumption is stopped, and when the remaining battery level is low, it is possible to control the hybrid recording / playback device with the minimum function, etc. As a result, the battery can be driven for a long time without greatly impairing usability. In addition, all functions of the hybrid recording / playback apparatus do not stop suddenly, and it is possible to leave the minimum recording and playback functions even if some restrictions are imposed on the functions.

  In order to solve the above problem, in the hybrid recording / reproducing apparatus according to the present invention, the first operation mode when the remaining amount of the storage battery is detected to be in the first range is the motor of the dynamic storage device. The operation mode is set to the operation mode in which the drive is stopped and recording and / or reproduction is performed only by the static storage device, and the second operation mode when the remaining amount of the storage battery is detected in the second range is static. A power saving mode in which recording and / or reproduction by the storage device is prioritized and the dynamic storage device is slowly activated, and a third operation mode when the remaining amount of the storage battery is detected to be in the third range is This is characterized by a normal operation mode.

  According to this, when the remaining amount of the storage battery decreases, the driving of the motor system with the largest power consumption is stopped, and the power consumption can be greatly reduced. In this case, only the static storage device is recorded and / or reproduced. However, if the content to be reproduced is already in the static storage device or if the capacity of the static storage device is sufficiently secured, the recording and / or reproduction is performed. (Note that in the specification of the present application, “.” (Dot) may be used instead of “and / or”) is not so limited. Recording on an optical disk or the like may be performed when there is a sufficient remaining battery capacity.

  In addition, when the remaining capacity of the storage battery is slightly reduced, the dynamic storage device is started up slowly, so there are restrictions such as requiring a little more time than usual to start up the dynamic storage device. Although it occurs, the use of the hybrid recording / playback apparatus is not impossible and does not become a disadvantage. In addition, if there is content data in the static storage device, the dynamic storage device can also be started slowly in parallel when the data is reproduced. The dynamic storage device follows the data reproduction in the static storage device. It is also possible to switch to the data reproduction from, and in this case, the usability is hardly deteriorated.

  Further, if the static storage device has sufficient free space, content is first recorded in the static storage device, and in parallel with this, the dynamic storage device is slowly started up. It is also possible to switch to recording, and in this case, the usability is hardly deteriorated.

  In order to solve the above problems, the hybrid recording / playback apparatus according to the present invention is characterized in that the dynamic storage device is an optical disk device.

  According to this, the convenience of the hybrid optical disk device can be greatly enhanced, such as enabling long-time driving when a widely used optical disk device is a portable type.

  In order to solve the above-described problem, in the hybrid recording / reproducing apparatus according to the present invention, the remaining amount detection unit further includes a remaining amount of the storage battery, and further a remaining amount necessary for opening / closing the tray of the optical disc apparatus. When the remaining amount detecting unit detects the fourth value P0, the device control unit detects the tray of the optical disc apparatus when the optical disc is loaded in the optical disc apparatus. It is characterized in that it is opened and the optical disk can be taken out.

  According to this, even when the remaining amount of the storage battery is low, the optical disk is not stopped suddenly, and even when the optical disk is loaded in the optical disk apparatus, the optical disk can be taken out at the minimum. The convenience of the apparatus can be improved. In addition, there is an effect to prevent the optical disk from being scratched.

  In order to solve the above problems, in the hybrid recording / playback apparatus according to the present invention, the device control unit determines the remaining amount of the storage battery according to the detection result from the remaining amount detection unit that detects the remaining amount of the storage battery. Information for displaying the status and / or the current operation mode is output.

  According to this, the user can immediately determine in which mode the user is currently using, and an effect that a user-friendly device can be provided is obtained.

In order to solve the above problem, in the control method of the hybrid recording and playback device according to the present invention,
Control of a hybrid recording / playback device driven by a storage battery, comprising a dynamic storage device that needs to be driven by a motor for data recording / playback and a static storage device that does not need to be driven by a motor for data recording / playback A method,
The remaining amount of the storage battery includes a first range in which the remaining amount of the storage battery is less than or equal to a first value P1, a second range that exceeds the first value P1 and is less than or equal to a second value P2, and a second range Detecting in at least three ranges of a third range that exceeds the value P2 and is less than or equal to full charge;
A step of driving the hybrid recording / reproducing apparatus in three different operation modes according to the detected three ranges is provided.

  According to this, in the hybrid recording / reproducing apparatus, it is possible to perform fine control for long-term use according to the remaining amount of the storage battery, and provide a control method of the hybrid recording / reproducing apparatus with improved convenience. be able to.

  In order to solve the above problem, in the control method of the hybrid recording / reproducing apparatus according to the present invention, the first operation mode when the remaining amount of the storage battery is detected to be in the first range is dynamic. Second operation when it is detected that the storage battery is in the second range in the operation mode in which the motor drive of the storage device is stopped and recording and / or reproduction is performed only by the static storage device. The mode is a power saving mode in which the recording and / or reproduction by the static storage device is prioritized and the dynamic storage device is started slowly, and it is detected that the remaining amount of the storage battery is in the third range The third operation mode is a normal operation mode.

  According to this, in the hybrid recording / reproducing apparatus, it is possible to perform fine control according to the remaining amount of the storage battery, and it is possible to provide a control method of the hybrid recording / reproducing apparatus with improved convenience.

  In order to solve the above problem, in the control method of the hybrid recording / playback device according to the present invention, the dynamic storage device is an optical disc device, and the remaining amount detection unit further determines the remaining amount of the storage battery, Including a step of detecting with a fourth value P0 that is a remaining amount necessary for opening and closing the tray of the optical disc apparatus, and when the remaining amount detecting unit detects the fourth value P0, the device control unit It is characterized by having a step of opening the tray of the optical disk device and allowing the optical disk to be taken out when the optical disk is loaded in the apparatus.

  According to this, even if the remaining amount of the storage battery decreases, there is no sudden stop, and it is possible to provide a control method capable of taking out the optical disc at a minimum even when the optical disc is loaded in the optical disc apparatus. .

  In order to solve the above-mentioned problem, in the control method of the hybrid recording / reproducing apparatus according to the present invention, the device control unit is configured to store the storage battery according to the detection result from the remaining amount detection unit that detects the remaining amount of the storage battery. And a step of outputting information for displaying the state of the remaining amount and / or the current operation mode.

  According to this, the user can immediately determine in which mode the user is currently using, and there is an effect that it is possible to provide a user-friendly control method for the hybrid recording apparatus.

  In order to solve the above problems, the present invention provides a program for causing a computer to function as each part of a hybrid recording / playback apparatus.

  According to this, it is possible to provide a program for controlling the hybrid recording / reproducing apparatus that can be driven for a long time without greatly impairing the convenience of the hybrid recording / reproducing apparatus.

  In order to solve the above problems, the present invention provides a computer-readable storage medium in which a program for causing a computer to function as each unit of a hybrid recording / playback apparatus is recorded.

  According to this, it is possible to provide a recording medium that records a program for controlling the hybrid recording / reproducing apparatus that can be driven for a long time without greatly impairing the convenience of the hybrid recording / reproducing apparatus.

  As described above, in the hybrid recording / reproducing apparatus according to the present invention, the remaining amount of the storage battery (battery) is detected in at least three stages, and the hybrid recording / reproducing apparatus is operated in different operation modes according to the remaining amount of the storage battery. Thus, it is possible to realize long-term driving by a storage battery while suppressing a decrease in convenience as a recording / reproducing apparatus.

It is a figure which shows the outline | summary of the hybrid video recording / reproducing apparatus based on Example 1 of this invention. It is a figure for demonstrating the fundamental view of the hybrid recording / reproducing apparatus which concerns on Example 1 of this invention. It is a figure explaining the example of operation | movement of the hybrid video recording / reproducing apparatus based on Example 1 of this invention. It is a figure which shows the operation | movement outline at the time of starting of the hybrid video recording / reproducing apparatus based on Example 1 of this invention, and a data recording / reproducing. It is a figure which shows the outline of a structure of the hybrid recording / reproducing apparatus loaded with the large capacity non-volatile memory (static storage device). It is a figure for demonstrating access to a large capacity non-volatile memory (static storage device). It is a figure for demonstrating the structure of a large capacity non-volatile memory (static storage device). It is a flowchart which shows the outline of access to a large capacity non-volatile memory (static storage device). It is a figure for demonstrating the control method of the hybrid recording / reproducing apparatus which concerns on Example 2 of this invention. It is a figure which shows the outline | summary of the conventional hybrid recording / reproducing apparatus. It is a figure which shows operation | movement of the conventional hybrid recording / reproducing apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, various preferred limitations for implementing the present invention are given, but the technical scope of the present invention is limited by the description of the scope of claims, and the following examples are given. It is not limited to the description of the drawings.

  First, the basic concept of the hybrid recording / playback apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2, and then the first embodiment of the present invention will be described with reference to FIGS. 3 and 4. Details of the three operation modes provided in the hybrid recording / playback apparatus will be described. Furthermore, the operation of the static storage device in the hybrid recording / playback device according to the first embodiment of the present invention will be described with reference to FIGS. 5, 6, 7, and 8.

  In the first embodiment of the present invention, an optical disk device using a recordable and / or reproducible optical disk such as a BD (Blu-ray Disc) or DVD as one storage device, and a semiconductor memory as the other storage device. 2 shows a hybrid recording / playback apparatus combined with a large-capacity nonvolatile memory. In particular, since the optical disk device is used as one of the storage devices, the hybrid optical disk device has been described. However, the present invention is not limited to the optical disk device. That is, instead of an optical disk device, a storage device such as an HDD that uses a motor or the like is essential for data recording / reproduction, but requires power for driving the motor or the like, although it is inexpensive and has a large capacity. be able to.

As already described, in this specification, when “a storage device that requires driving of a motor or the like for data recording and / or reproduction” is collectively shown, it is described as “dynamic storage device”. . Further, in this specification, the large-capacity non-volatile memory is a non-volatile memory that has a large capacity such as eMMC (Embedded Multi Media Card) and does not require driving by a motor or the like for data recording / reproduction. This means that a dynamic storage device can be defined as a static storage device. Therefore, when such a memory is collectively shown, it is described as “static storage device”.
[Configuration of hybrid optical disk device]
FIG. 1A shows an outline of a drive unit 40 of an optical disc apparatus using an optical disc such as a BD (Blu-ray disc) and a DVD suitably used in the hybrid recording / reproducing apparatus according to the present invention. ) Is a memory unit 20 including a large-capacity nonvolatile memory unit 50 in addition to the optical disk device 70 including the driving unit 40 and a control unit / signal processing unit 30 for controlling the driving unit 40. 2 shows a hybrid optical disc apparatus 100 provided with a power supply unit / input / output unit 10. In the specification of the present application, “/” (slash) means “and”. Therefore, “power supply unit / input / output unit” means that both the power supply unit and the input / output unit are included. ing.

  In FIG. 1A, the drive unit 40 of the optical disk apparatus includes an optical pickup 44 having a laser element 43, a horizontal drive motor 41 for driving the optical pickup 44 along a guide rail 42, and an optical disk 48. A spindle motor 45 for rotational driving is provided, and a laser beam from the laser element 43 is irradiated onto the optical disk 48 as a light beam 47 focused on the optical disk by the lens actuator 46 to record a signal. In response to the reflected light from the optical disk 48, the signal is reproduced.

  In FIG. 1B, the control unit / signal processing unit 30 of the optical disk device 70 has a known configuration, and details of its operation are omitted, but a CPU 31 for controlling the entire optical disk device 70; In addition to having a PROM 32 storing a control program, a RAM used as a work memory for the CPU 31, a servo control unit 36, and a mechanical / servo control unit 37, the CPU 31 is connected to the CPU 31 via the bus 4. A modulation / demodulation circuit / ECC processing unit 38, a recording control unit 34, and a reproduction control unit 35 are connected.

  In FIG. 1B, reference numeral 20 denotes a memory unit that constitutes another storage unit of the hybrid optical disc apparatus 100. In addition to the conventional SDRAM 21, a large-capacity nonvolatile memory unit 50 is provided according to the present invention. . As described above, the large-capacity nonvolatile memory means a nonvolatile memory such as an eMMC (Embedded Multi Media Card) that does not require driving by a motor or the like for data recording / reproduction. In the case where the memories are collectively shown, they are described as static storage devices.

  In the first embodiment shown in FIG. 1B, an eMMC (Embedded Multi Media Card) is used as the large-capacity non-volatile memory unit 50, and the capacity is about one BD (Blu-ray Disc) (25G to 50G). Things are chosen.

  In FIG. 1B, reference numeral 10 denotes a power supply unit / input / output unit of the hybrid optical disc apparatus 100, which includes a display unit 11 as an output unit, a power supply / battery 12 having a storage battery, and a remaining amount detection unit for detecting the remaining amount of the storage battery. 13, a data compression / decompression / processing unit 14, an input switching unit 15, a command / device control unit 16, a RAM 17, and a specified value / operation mode storage unit 18, each connected to the bus 1. The bus 1 is connected to the bus 4 of the optical disc apparatus 70 via the interfaces 2 and 3. The input switching unit 15 is connected to the TV broadcast receiving unit 5, the camera 6, and other devices 7.

  The display unit 11, the data compression / decompression / processing unit 14, the input switching unit 15, the command / device control unit 16, and the RAM 17 are basically the same as those in the conventional example described with reference to FIG. Although a detailed description is omitted, the command / device control unit 16 may be configured to output information for displaying the remaining amount state of the storage battery detected by the remaining amount detection unit 13 on the display unit 11. good. And the information for displaying the residual amount state etc. of the said storage battery will be displayed on the display part 11, for example. Needless to say, when the hybrid optical disk device does not include the display unit 11, information for displaying the remaining state of the storage battery and the like is displayed on an externally connected display device.

  The prescribed value / operation mode storage unit 18 stores a plurality of values of “the remaining battery level of the power source / battery 12 (the remaining amount of storage battery)” to be detected by the remaining amount detection unit 13 as a prescribed value. A plurality of “operation modes of the hybrid optical disk device” selected in accordance with the remaining battery level detected by the remaining amount detection unit 13 are stored.

  FIG. 2A shows a relationship between a plurality of specified values stored in the specified value / operation mode storage unit 18 and a plurality of operation modes selected according to the remaining battery level.

  As shown in FIG. 2 (a), the specified value / operation mode storage unit 18 stores a first value between a state where the remaining amount of the battery (storage battery) is zero (0) and a FULL charge (full charge) state. Two defined values, P1 and second value P2, are set. The remaining amount detecting unit 13 detects the case where the remaining amount of the battery is zero and the first specified value P1 or less (first range) as the remaining battery level L, and the remaining amount of the battery is the first level. A case where the specified value P1 is exceeded and the second specified value P2 is not more than the second specified value P2 (second range) is detected as the remaining battery level M, and further, the remaining battery level exceeds the second specified value P2 and full charge (full charge) The following (third range) is detected as the remaining battery level H.

  The prescribed value / operation mode storage unit 18 stores a first operation mode, a second operation mode, and a third operation mode in addition to the prescribed values P1 and P2. The first operation mode shows the operation mode of the hybrid optical disk device 100 when the remaining battery level is L level, and the second operation mode is the hybrid optical disk device 100 when the remaining battery level is M level. The third operation mode shows the operation mode of the hybrid optical disc apparatus 100 when the remaining battery level is at the H level.

  The three different operation modes from the first to the third will be described in detail with reference to FIGS. 3 to 4. The third operation mode is an operation mode that does not restrict the functions of the hybrid optical disc device 100 at all. The second operation mode is an operation mode that partially restricts the functions of the hybrid optical disc apparatus 100, and the third operation mode is an operation mode that further restricts the functions of the hybrid optical disc apparatus 100.

  FIG. 2B shows an outline of the operation of the hybrid optical disc apparatus 100. When the power supply of the hybrid optical disc apparatus 100 is turned on, the remaining amount detection unit 13 checks the remaining amount of the battery (storage battery) of the power source / battery 12 (step 1, hereinafter referred to as S.1). It is determined (S.2) whether the remaining amount of the battery is at L level, M level, or H level.

  Each time the remaining battery level is detected, a message to that effect may be displayed on the display unit 11 (see FIG. 1B). Further, the current battery remaining states H, M, and L may be displayed on the screen of the display unit 11 at all times. The display of the remaining amount is preferably selected, for example, in the upper right corner of the display screen of the display unit 11. However, if it seems to be an obstacle when viewing the content, it is not normally displayed and some operation (for example, a remote control) You may comprise so that it may display by operation. Further, when the remaining amount becomes the L level, it may be displayed until the L level situation is resolved. Further, the current operation mode may be displayed instead of or simultaneously with the battery remaining amount display. Further, details of the current operation mode (restrictions such as which functions can be used and which functions cannot be used) can be displayed by operating the remote controller or the like.

  When it is determined that the hybrid optical disk apparatus 100 is at the L level, the hybrid optical disk apparatus 100 is drive-controlled in the first operation mode (S.5), and when it is determined that it is at the M level, the hybrid optical disk apparatus is operated. 100 is driven and controlled in the second operation mode (S.4), and if it is determined that the hybrid optical disc apparatus 100 is at the H level, the hybrid optical disc apparatus 100 is drive-controlled in the third operation mode (S.3). )

  Specifically, for example, corresponding to three operation modes, the device control unit of the command / device control unit 16 sends a control command to the CPU 31 via the interfaces 2 and 3, and the CPU 31 controls the optical disk device and the memory unit. 20 control is performed. In FIG. 1B, each device in the power supply unit / input / output unit 10 is connected to the bus 1 and controlled by the command / device control unit 16. Each device may be directly connected to the bus 4 and directly controlled by the CPU 31. In this case, the device control unit that controls the hybrid optical disc apparatus 100 in the three operation modes corresponds to the CPU 31.

  The remaining amount check function of the remaining amount detecting unit 13 is always working (actually repeated at an appropriate time interval) while the hybrid optical disc apparatus 100 is operating, and when a stop instruction is given ( S.6), stop processing is performed (S.7).

FIG. 3 shows details of the operation mode of the hybrid optical disc apparatus 100 that is driven and controlled according to the remaining battery level. FIG. 3A shows the third operation mode, and FIG. 3B shows the second operation mode. FIG. 3C shows the third operation mode.
[Third operation mode]
When the third operation mode is selected in step 2 of FIG. 2B (S.3 in FIG. 2B), the hybrid optical disc apparatus 100 is in the third state as shown in FIG. "Normal recording / reproduction" is performed as the operation mode (S.31). This third mode does not limit the functions of the hybrid optical disk device 100 including the functions of the optical disk device 70, and therefore does not limit the startup of the drive unit 40 of the optical disk device at high speed. Further, high-speed access such as recording or reproduction (when requested data is in the memory unit 20) by the memory unit 20 until the optical disk device 70 is completely started up by using the memory unit 20 to the maximum. There is no restriction on the operation for In other words, as usual, the optical disk is directly accessed for recording and reproduction, and the characteristics of the hybrid optical disk device are utilized to access the large-capacity duplicate memory 50 for recording and reproduction.

When the second operation mode is selected in step 2 of FIG. 2B (S.4 in FIG. 2B), the hybrid optical disc apparatus 100 performs the second operation shown in FIG. 3B. Will execute the mode.
[Second operation mode]
The second operation mode will be described with reference to FIG. When the second operation mode is selected (S.3 in FIG. 2B), the second operation mode is entered (S.4). First, it is determined whether the process is recording or reproduction (S.41). In the case of reproduction, the optical disk apparatus (drive) is basically in the power saving mode, and there is desired data in the large-capacity nonvolatile memory 50. First, the data is reproduced from the data (S.42), and the disk reproduction is pre-read and stored in the large-capacity nonvolatile memory unit 50 (S.43). If there is no desired data in the large-capacity nonvolatile memory unit 50, reproduction from the disk is performed. Details of the power saving mode of the optical disc apparatus will be described later.

  If it is determined in step 41 of FIG. 3B that the recording is “recording”, the data is stored in the large-capacity nonvolatile memory unit 50 instead of recording directly on the optical disk (S. 45). The capacity of the large-capacity nonvolatile memory unit 50 is selected to be 25 to 50 GB, which is the capacity of one optical disk, and sufficient recording time can be obtained even for high-definition TV broadcasting. Then, the optical disc apparatus 70 records data on the optical disc in the low speed mode during the idle time (S.46).

  For example, assuming AV data obtained by compressing MPEG2 of terrestrial digital broadcasting (17 Mbps) and BS broadcasting (24 Mbps) to about 1/10 by transcoding, the capacity is about 1.53 GB for terrestrial digital broadcasting in a two-hour program, BS Since broadcasting has a capacity of about 2.16 GB, the large-capacity nonvolatile memory unit 50 can store a long-time television program.

  To summarize the second operation mode, direct access to the optical disc as usual is avoided, and the optical disc device 70 is switched to a power saving mode (low power consumption mode) described later, or the optical disc can be used with relatively low power consumption. Use accessible continuous playback and continuous recording modes.

  That is, in the case of playback, control is performed in which the prefetching is performed in parallel or in the idle time while using the device, and one title or a well-separated title is continuously read from the disc and stored in the large-capacity duplicate memory 50. Do. The unit for prefetching collectively can be stored in the large-capacity nonvolatile memory unit 50 with a margin even if the program is for one hour or two hours. Note that when the free capacity of the large-capacity nonvolatile memory unit 50 is insufficient, old data may be overwritten.

On the other hand, at the time of recording, in a power saving mode (low power consumption mode) as will be described later, recording is performed on the optical disc with a minimum range, or recording is limited to recording in the large-capacity nonvolatile memory unit 50. The drive system of the optical disk device is stopped.
[Third operation mode]
Finally, the first operation mode will be described with reference to FIG. In the first operation mode, it is determined whether recording or reproduction is performed (S. 61), and if it is determined that reproduction is performed, reproduction is basically performed only from the large-capacity nonvolatile memory unit 50 (S .62), reproduction from the optical disk is stopped (S.63). On the other hand, if it is determined that the recording is to be performed, recording to the optical disk is not performed even if a recording instruction to the optical disk is given, and recording is performed in the large-capacity nonvolatile memory unit 50. Recording on the optical disk is performed collectively after the battery is charged. When the free capacity of the large-capacity nonvolatile memory unit 50 is insufficient, the old data may be overwritten according to the judgment of the user. When the user prohibits overwriting, it may be recorded on the optical disc after notifying that the usage time will be shortened.

  To summarize the first operation mode described above, data reproduction is limited to reproduction from the large-capacity nonvolatile memory unit 50 in which the pre-read data is stored. On the other hand, recording is also kept in the large-capacity nonvolatile memory unit 50 and is not recorded on the optical disk. Recording on the optical disk has an environment where the battery can be sufficiently charged. After charging, after confirming that the inserted optical disk ID matches the optical disk ID registered in the large-capacity nonvolatile memory unit 50, the corresponding ID is entered. The data recorded in the large-capacity nonvolatile memory unit 50 is recorded on the optical disk.

When there is no recording error and recording on the optical disc is completed by command completion, the data in the large-capacity nonvolatile memory unit 50 may be deleted or left as it is. However, in the case of digital television broadcasting, the number of copies is limited to 10 times, so by moving data from the large-capacity nonvolatile memory unit 50 to the optical disc, the number of copies is limited to one time. Gain.
(Power saving mode)
Next, a basic concept for setting the power saving mode (low power consumption mode) in the hybrid optical disc apparatus and a setting example will be described.

  In general, the power consumption of the optical disc apparatus is about 5 to 6 W (5V / 12V combined use) during steady reproduction. The 5V power source is mainly used for a control circuit, a data processing circuit, and the like, and the 12V power source is used for a portion requiring a large current, such as a motor drive or a laser system. Among them, the three power sources that require a large amount of power are when starting up the spindle motor to the required number of revolutions, when seeking a long distance to the inner periphery of the optical disk, and when recording on the optical disk driven by the laser element.

  The spindle motor starts up to the required number of revolutions if the current is increased, but it starts up more quickly, but normally it takes about 2A for about 2A. The drive of the seek motor during seek is about 2A at maximum. It is.

  Further, regarding the power consumption during the steady operation of recording and reproduction, it is estimated that the spindle motor is driven at a current of about 0.1 to 0.2 A at 12 V on the inner periphery, and is about 1.2 W to 2.4 W. Estimated power consumption. At the time of recording, since the laser element consumes an average current of about 0.15 A at 12 V, power of about 2 W is consumed. Regarding the power consumption of the seek motor system, in the case of AV content, it is considered that there are many continuous playbacks and continuous recordings.

  The current consumption in the 5V power supply system is 3A inside or outside, but as a technology for power saving, stop the power supply to unused circuit blocks and lower the drive frequency of the CPU etc. from 5V to 3.3V There is a low voltage drive.

The hybrid optical disk device 100 according to the present invention includes two types of recording / reproducing units, a large-capacity nonvolatile memory unit 50 and an optical disk device 70. When the optical disk device 70 is used, it is necessary to drive a spindle motor. Further laser driving is required during recording. However, by effectively utilizing the large-capacity nonvolatile memory unit 50, even if the driving of the optical disk device 70 is stopped, a desired operation can be performed without reducing the convenience. By setting such an operation mode (power saving mode), it is possible to reduce the power consumption of the hybrid optical disc apparatus 100, and thus it is possible to drive for a long time. A specific power saving mode will be described below.
[Measure 1 for power saving mode]
A certain amount of time (for example, about 10 minutes) from the beginning of the program to be recorded is performed in the large-capacity non-volatile memory unit 50 each time, and functions such as a spindle motor drive system and a laser drive system of the optical disk device 70 are used. Stop it. When recording on an optical disc becomes necessary, for example, when recording of a program is not stopped near the end of the “predetermined time” predetermined by the user, the optical disc apparatus is set to “slow start”. To start recording on the optical disc.

When the user stops recording in a short time, all the electric power required for starting up the optical disk device 70 can be saved, and even when recording on the optical disk is necessary, “slow start-up” is performed. Therefore, power consumption can be reduced, and power saving driving can be performed.
[Measure 2 for power saving mode]
During recording in the large-capacity nonvolatile memory unit 50, the spindle motor of the optical disc device 70 is started up to make the optical disc device ready for recording and reproduction, and then the content recording is switched to recording on the optical disc. It takes 2 to 3 seconds to complete the recording / playback preparation of the optical disk apparatus, and it takes about several tens of seconds (usually 20 to 30 seconds) until the host command can be transmitted / received. And the start-up of the optical disk device 70 can be performed simultaneously and after the start-up, high-speed recording of the optical disk device can be started.

Power saving is possible by slow start-up of the optical disk device, and high-speed access to the optical disk device is possible after startup, saving power while maintaining convenience. Can be realized.
[Measure 3 for power saving mode]
Even if the hybrid optical disk device 100 is recording, even when recording in the large-capacity nonvolatile memory unit 50, the unnecessary circuit of the control unit / signal processing unit 30 of the optical disk device, the drive of the spindle motor, the optical pickup Unnecessary circuits of the “optical disc drive unit 40” including driving are turned off. Even during playback, if playback is from the large-capacity nonvolatile memory unit 50, the power to the unnecessary circuit portion of the optical disk apparatus is turned off as described above.

Which mode is selected as the power saving mode can be determined by how much long-time driving is realized while maintaining how much convenience is maintained when the remaining amount of the battery is low.
[Start-up of hybrid optical disk device, playback from optical disk, recording on optical disk]
Next, the operations of starting up the hybrid optical disc device, reproducing from the optical disc, and recording on the optical disc will be described with reference to FIG.

  FIG. 4A shows an outline of the operation at the time of start-up of the hybrid optical disc apparatus 100 according to the present invention. This is basically the same as the conventional example described with reference to FIG. 11, and detailed description thereof is omitted. 4 (a), when the power is turned on (S.1), the hybrid optical disk device 100 is activated and enters a standby state after a predetermined time has elapsed. When an optical disk is inserted (S.2), The spindle motor starts rotating (S.3), the focus servo is turned on (S.4), the type of the optical disk is determined (S.5), and the tracking servo is turned on (S.6).

  When the disk servo is determined (S.7), the optical disk basic data is reproduced (S.8), and the preparation for the recording / reproduction request by the host system is completed (S.9). Can be recorded and reproduced at any time (S.10).

  In this case, the host system corresponds to the power supply unit / input / output unit 10, and therefore, the recording request by the host system includes the TV broadcast receiving unit 5 connected to the power supply unit / input / output unit 10, the camera 6, and the like. The request to record the video data and image data from the device 7 by the optical disk device 70, and the reproduction request by the host system is a request for displaying the video data or the like on the display unit 11. In addition, in a recording / reproducing apparatus such as an HDD or a BD, which is connected as the other apparatus 7, for example, issuing a reproduction request to the optical disk apparatus 70 in order to record a reproduction signal from the optical disk apparatus 70 is also included. .

  Normally, Step 3 (S.3) to Step 7 (S.7) require a relatively long time and have high power consumption. Therefore, if the operation of this part is temporarily stopped, the power consumption can be reduced accordingly. Also, slowing the start-up of the optical disk device is less effective than stopping it, but can save power.

  FIG. 4B shows an example of a reproduction operation when the hybrid optical disk apparatus 100 reproduces content recorded on the optical disk. Consider a case where an optical disk is inserted and played back in step 2 (S.2) of FIG. When the content of the inserted optical disk is not stored in the large-capacity nonvolatile memory unit 50, all reproduction data is stored in the large-capacity nonvolatile memory unit 50 (S.11). When there are a plurality of optical disks, all data is stored together with the disk ID. As already described, the capacity of the large-capacity nonvolatile memory unit 50 is selected to be 25 to 50 GB, and content for a considerably long time can be stored.

  After the storage of all data is completed, the optical disk device 70 is put into a standby state (including stop) (S.12). Then, when a reproduction command comes next time (S.13), if there is requested data in the large-capacity nonvolatile memory unit 50, the data is read from the large-capacity nonvolatile memory unit 50 and this data is transferred to the host system. (S.14).

  In the case of using the hybrid optical disc device 100, for example, it is considered that there are many cases in which only a part of content recorded on the optical disc is viewed, and further subsequent content is viewed later. Can be played back in an operation mode with low power consumption. Further, when the power supply for charging is nearby, all the contents of the optical disk are stored in the large-capacity nonvolatile memory unit 50, and when the contents stored when the hybrid optical disk device 100 is taken out are enjoyed, the power is saved. You can enjoy long playback in mode.

  FIG. 4C is a diagram showing an example of a recording operation when data is recorded on the optical disc in the hybrid optical disc apparatus 100. When a large amount of content data to be recorded on the optical disk is transferred to the large-capacity nonvolatile memory unit 50 (S.15), the start address is specified in the address register in the large-capacity nonvolatile memory unit 50 (S.16). ), The content data is recorded. Note that writing to the large-capacity nonvolatile memory unit 50, such as designation of a head address by an address register in the large-capacity nonvolatile memory unit 50, will be described later with reference to FIGS.

When the optical disc is inserted into the optical disc device 70, the optical disc device is slowly started up (S.17), and the content data is recorded on the optical disc after the start-up of the optical disc device is completed or when the host system is not accessed. . When the recording is completed, the optical disc apparatus stops (S.18).
[Configuration / Operation of Large Capacity Nonvolatile Memory Unit (Static Storage Device)]
First, a configuration in which a large-capacity nonvolatile memory unit 50 is added to the SDRAM 21 will be described using FIG. 5, and an access state to the large-capacity nonvolatile memory unit 50 will be described using FIG. 6. The configuration of the interface conversion circuit 52 provided in the large-capacity nonvolatile memory unit 50 will be described with reference to FIG.

  In FIG. 5, the components assigned the same numbers as those of the hybrid optical disc apparatus shown in FIG. 1B show the same configurations, and therefore the description of those components is omitted. As shown in FIG. 5, the memory unit 20 of the hybrid optical disk device 100 according to the present invention includes an SDRAM 21 and a large-capacity nonvolatile memory unit 50, and is connected to the bus 4 by an SDRAM bus 25.

  The large-capacity nonvolatile memory unit 50 includes an interface conversion circuit 52 using an FPGA (Field Programmable Gate Array) and a large-capacity nonvolatile memory 51 serving as an expansion memory. For example, an eMMC (Embedded Multi Media Card) can be used as the large-capacity non-volatile memory 51 serving as the expansion memory. However, as described above, the present invention is not limited to this and does not require driving by a motor or the like. Any static storage device such as a semiconductor memory may be used.

  An FPGA (Field Programmable Gate Array) itself is very easily available and has a high degree of design freedom. Therefore, it is possible to obtain a hybrid optical drive device with a high-function expansion memory while reducing costs. . Also, an eMMC (Embedded Multi Media Card) is also readily available and inexpensive, and a hybrid optical drive device with a high-function expansion memory can be realized while reducing costs. The eMMC memory has a feature that it has a capacity capable of dramatically storing a large capacity, for example, a single BD.

  The large-capacity nonvolatile memory unit 50 further includes an in-FPGA circuit input control unit 53, a data read exclusive circuit 54, and a large-capacity nonvolatile memory addressing register 55. The in-FPGA circuit input control unit 53 controls the operation of the interface conversion circuit 52, and the data read exclusive circuit 54 accesses the large-capacity nonvolatile memory 51 in the large-capacity nonvolatile memory unit 50. At this time, access to the SDRAM 21 is prohibited. The large-capacity nonvolatile memory address designating register 55 is a register for storing a memory address or the like designated when data is recorded in the large-capacity nonvolatile memory 51. That is, when data is transferred to the large-capacity nonvolatile memory 51, the DMA transfer is performed after designating the recording start address and length information in the large-capacity nonvolatile memory address designating register 55 in the FPGA in advance. Become.

  Next, the state of access to the large-capacity nonvolatile memory 51 of the large-capacity nonvolatile memory unit 50 will be described with reference to FIG. In FIG. 6, the same reference numerals are given to the same components as those shown in FIGS. 1 and 5, and the description of these components is omitted.

  As shown in FIG. 6, the SDRAM 21 has two ring buffers 22 and 23, and four direct memory access channels (DMACH0, DMACH2, DMACH3, DMACH4) for data transfer to the SDRAM 41. Yes. For accessing the large-capacity nonvolatile memory 51, the ring buffers 22 and 23, the four direct memory access channels (DMACH0, DMACH2, DMACH3, DMACH4), and the interface conversion circuit 52 of the large-capacity nonvolatile memory section 50 are used. Mainly used.

  Data recording in the large-capacity nonvolatile memory 51 is recorded at an address designated by the large-capacity nonvolatile memory address designation register 55, and data reproduction from the large-capacity nonvolatile memory 51 ( Playback) is read from the address designated via the large capacity nonvolatile memory address designation register 55.

  In other words, the address of the control LSI in a hybrid drive apparatus only having a conventional SDRAM is generally 8 MB to 16 MB, and cannot be linearly allocated up to gigabytes. Therefore, in the hybrid optical disc apparatus 100 according to the present invention, the address register of the large-capacity nonvolatile memory 51 is configured, the address of the large-capacity nonvolatile memory 51 to be accessed is first written in the register, and the actual data access is performed. Do. As this address register, the hybrid optical disk apparatus 100 according to the present invention is provided with a large-capacity nonvolatile memory addressing register 55. Data can be accessed without losing high speed by performing burst transfer. Control for accessing the large-capacity nonvolatile memory 51 by the large-capacity nonvolatile memory addressing register 55 is performed by the circuit input control unit 53 in the FPGA.

  When recording data from the power supply / input / output unit 10 serving as the host system, the data from the power supply / input / output unit 100 is DMACH0 (direct memory access Channel 0), ring buffer 2, DMACH4 (direct memory access channel 4), ring buffer 23, DMACH3 (direct memory access channel 3), are sent to optical disk device 70, and are recorded on the optical disk. Become.

  As shown by the solid line 74 in FIG. 6, the reproduction signal from the optical disk side is transferred to the large capacity non-volatile memory via DMACH2 (direct memory access channel 2), ring buffer 23, DMACH4 (direct memory access channel 4). To the interface conversion circuit 52 of the unit 50. As described above, the data sent to the large-capacity nonvolatile memory unit 50 is stored at the address of the large-capacity nonvolatile memory 51 specified by the large-capacity nonvolatile memory address designating register 55, and further, DMACH4 ( The direct memory access channel 4), the ring buffer 22, and DMACH0 (direct memory access channel 0) are sent to the power supply unit / input / output unit 10 side as the host system, and displayed on the display unit 11, for example.

  Next, details of the large-capacity nonvolatile memory unit 50, particularly, details of the interface conversion circuit 52 will be described with reference to FIG. FIG. 7 mainly shows the large-capacity nonvolatile memory unit 50. The SDRAM 21 and the large-capacity memory via the SDRAM bus 25 are connected to the bus 4 to which the control unit / signal processing unit 30 of the optical disk device is connected. The state where the non-volatile memory unit 50 is connected is shown.

  As described above, the large-capacity nonvolatile memory unit 50 includes the large-capacity nonvolatile memory 51 connected via the interface conversion circuit 52, the FPGA internal circuit input control unit 53, the data read exclusive circuit 54, and the large-capacity nonvolatile memory. The memory address specifying register 55 is provided.

  The interface conversion circuit 52 is configured using an FPGA (Field Programmable Gate Array), and includes an SDRAM interface 56, a FIFO 57, and an eMMC controller 58. The FIFO 57 performs buffering between the SDRAM interface 56 and the eMMC controller 58, and absorbs the speed difference between the two to achieve smooth data exchange. That is, the interface conversion circuit 52 is an SDRAM-eMMC bridge circuit that bridges an SDRAM interface and a large-capacity memory such as an eMMC interface.

  Note that when accessing the large-capacity nonvolatile memory 51 configured by eMMC, exclusive control for prohibiting access to the SDRAM 21 side is performed. According to this, the SDRAM 21 operating as the cache memory and the large-capacity nonvolatile memory 51 can be used separately, and the usefulness of the hybrid optical disk apparatus according to the present invention can be further enhanced. Here, exclusive control refers to a control method for prohibiting simultaneous access to the same SDRAM from another bus.

  FIG. 8 is a diagram for explaining a state of access to the large-capacity nonvolatile memory 51 of the large-capacity nonvolatile memory unit 50. FIG. 8A shows a situation in which an access request to the optical disc side via the interface 2 (see FIG. 6 and the like) is made from the power supply unit / input / output unit 10 serving as the host system. The optical disk device 70 is currently stopped after at least one access, and recording / reproduction with the optical disk device 70 is not required as long as there is requested data in the large-capacity nonvolatile memory unit 50 (S.1). ).

  In this case, exclusive processing of data from the SDRAM 21 is performed (S.2), and data having one or more disk IDs is stored in the large-capacity nonvolatile memory 51 (S.3). When the request data from the power supply unit / input / output unit 10 serving as the host system is in the large-capacity nonvolatile memory 51, DMA transfer is performed via the SDRAM bus 25 from the large-capacity nonvolatile memory 51 instead of the optical disk.

  FIG. 8B shows an operation when the SDRAM 21 is used as a buffer. In this case, the optical disk device 70 is always in operation during access (S.1). Then, data transfer is repeatedly performed in small capacity units using the SDRAM 21 as a buffer (S.2), and the completion of the requested data transfer is awaited (S.3). The power supply unit / input / output unit 10 serving as the host system completely transfers and accepts data in an address unit (relatively small capacity) that can be specified by a control LSI command in the hybrid optical disk device 70.

  A second embodiment of the hybrid optical disc apparatus according to the present invention will be described with reference to FIG.

  The basic concept of the second embodiment is the same as that of the first embodiment described with reference to FIG. 2, but in the second embodiment, when the remaining battery level is L, a more specific set value P0 (first If the remaining battery level is equal to or less than the fourth value P0, the stop process is immediately performed.

  Hereinafter, Example 2 will be described with reference to FIGS. 1 and 9. When the hybrid optical disc apparatus 100 shown in FIG. 1B is switched on, the remaining amount detecting unit 13 checks the remaining amount of the battery (S.1), and the remaining amount is set to any of H level, M level, and L level. It is determined whether it belongs (S.2). When the remaining battery level is H level or M level, the case of FIG. 2B and the third operation mode or the second operation mode are selected. The operation in the third operation mode and the second operation mode may be the same as the operation mode described in the first embodiment.

  In the case of the second embodiment, when the remaining battery level is L, the hybrid optical disc device 100 is basically driven in the third operation mode. Further, the watch determines whether the remaining battery level is P0 or less. If P0 or less is detected (S.5), stop processing is performed (S.8). The method of determining the value of the set value P0 is selected as a value in which the power necessary for the stop process (S.8) remains. The stop process is, for example, a process in the optical disc apparatus 70 that opens (opens) the optical disc tray when the optical disc is loaded, allows the optical disc to be taken out, and further closes the optical disc tray. Accordingly, the fourth value P0 in this case may be a remaining amount necessary for opening and closing the tray of the optical disc apparatus 70.

FIG. 9B shows the relationship between the three setting values P2, P1, and P0 that the remaining amount detection unit 13 detects the remaining amount of the battery.
[Program and recording medium]
Finally, a control program and a recording medium in the hybrid recording / reproducing apparatus according to the present invention will be described by taking the hybrid optical disk apparatus 100 which is an embodiment of the present invention as an example.

  Each block of the hybrid optical disc apparatus 100 shown in FIGS. 1, 5, 6, and 7 may be configured by hardware logic, or may be controlled by software using a CPU. That is, as already described, the hybrid optical disc apparatus 100 includes a CPU 31 for realizing each function, a command / device control unit 16, a PROM 32 that can store programs, a RAM 33 and a RAM 17 that can develop programs into executable formats. With this configuration, the control program according to the present invention can be executed. In this sense, the hybrid optical disc apparatus 100 also operates as a computer.

  The recording medium only needs to record the program code (execution format program, intermediate code program, source program) of a program which is software for realizing the above functions so as to be readable by a computer. This recording medium is supplied to the hybrid optical disc apparatus 100. Thereby, the high grid optical disc apparatus 100 as a computer may read and execute the program code recorded on the supplied recording medium.

  The recording medium providing the program code is not limited to a specific structure or type. For example, tape system such as magnetic tape and cassette tape, floppy disk, magnetic disk system of hard disk, optical disk system such as CD / DVD, card system such as IC card, semiconductor memory such as ROM / EPROM / flash ROM Or the like.

  Further, the high grid optical disc apparatus 100 may be configured to be connectable to a communication network and the program may be supplied. For example, various network systems such as the Internet, LAN, ISDN, telephone line network and the like can be used, and a transmission medium constituting this communication network is also included in the recording medium of the present invention.

  In the present invention, as described above, when the optical disc device 70 is shifted to the standby state, the operation of the drive unit 40 of the optical disc device 70 is stopped, which contributes to power saving. In general, when the optical disk device 70 is started up, it takes a relatively long time, so that the power consumption increases. Further, in order to increase the access speed, the high speed startup is performed, resulting in high power consumption.

  On the other hand, according to the present invention, there is a period during which the drive unit 40 of the optical disc apparatus 70 is stopped, coupled with the ability to record a large amount of data in the large-capacity nonvolatile memory 51. Furthermore, it is also possible to slow up the drive unit 40 without causing a decrease in access speed, and the power saving effect by these is great. In addition, since data is reproduced from the large-capacity nonvolatile memory 51 that is accessed faster than the optical disk device 70, it is not necessary to wait for the time until the optical disk is started up, and the hybrid optical disk device 100 that is extremely easy to use can be obtained.

  In the invention of the present application, the hybrid optical disc apparatus is driven and controlled in various operation modes according to the remaining battery level. When the remaining battery level is relatively low, the large capacity nonvolatile memory 51 is maximized. Since the optical disk device itself is limited to drive by using it, it can be driven for a long time without significantly reducing usability.

  Further, according to the present invention, a large-capacity nonvolatile memory can be easily added by adding the interface conversion circuit 52 using FPGA to the conventional hybrid drive apparatus, and the hybrid optical disk apparatus 100 can be easily used. Can be greatly improved.

  The present invention combines a dynamic storage device such as an optical disk device with a static storage device such as a semiconductor large-capacity non-volatile memory, and a hybrid recording / playback device that is extremely easy to use and can be driven for a long time even when driven by a battery. The industrial applicability is high.

DESCRIPTION OF SYMBOLS 1 Power supply part / input / output part bus 2 Power supply part / input / output part interface 3 Optical disk apparatus side interface 4 Optical disk apparatus side bus 5 TV broadcast receiving part 6 Camera 7 Other equipment 10 Power supply part / input / output part 11 Display part 12 Power supply / battery 13 Remaining amount detection unit 14 Data compression / decompression / processing unit 15 Input switching unit 16 Command / equipment control unit 17 RAM
18 Specified Value / Operation Mode Storage Unit 20 Memory Unit 21 SDRAM
22, 23 Ring buffer 30 Control unit / signal processing unit 31 of optical disc apparatus 31 CPU
32 PROM
33 RAM
34 Recording Control Unit 35 Playback Control Unit 36 Servo Control Unit 37 Mechanical / Servo Control Unit 38 Modulation / Demodulation Circuit ECC Processing Unit 40 Drive Unit of Optical Disk Device 50 Large Capacity Nonvolatile Memory 51 Large Capacity Nonvolatile Memory (eMMC)
52 Interface Conversion Circuit (FPGA)
53 In-FPGA circuit input control unit 54 Data read exclusive circuit 55 Large-capacity nonvolatile memory Addressing register 56 SDRAM interface 57 FIFO
58 eMMC controller 70 Optical disk device 73 Data flow during recording 74 Data flow during reproduction 100 Hybrid optical disk device

Claims (11)

A hybrid recording / playback apparatus comprising a dynamic storage device that requires a motor to drive data recording and / or playback, and a static storage device that does not require a motor to drive data recording and / or playback. ,
The hybrid recording / reproducing apparatus further operates the hybrid recording / reproducing apparatus in different operation modes according to the remaining amount of the storage battery, a power supply unit having a storage battery, a remaining amount detection unit for detecting the remaining amount of the storage battery, and Equipment control unit,
The remaining amount detection unit is configured to determine a remaining amount of the storage battery, a first range in which the remaining amount of the storage battery is equal to or less than a first value P1, and a second value that exceeds the first value P1 and is equal to or less than a second value P2. Detecting in a range and at least three ranges of a third range that exceeds the second value P2 and is less than or equal to full charge,
The apparatus control unit drives the hybrid recording / reproducing apparatus in three different operation modes according to the detected three ranges. In the first operation mode when it is detected that the remaining amount of the storage battery is in the first range, the motor drive of the dynamic storage device is stopped, and recording and / or reproduction by only the static storage device is performed. The operation mode to be performed,
The second operation mode in the case where it is detected that the remaining amount of the storage battery is in the second range is given priority to recording and / or reproduction by the static storage device, and to start up the dynamic storage device slowly. Power mode,
The hybrid recording / reproducing apparatus according to claim 1, wherein the third operation mode when it is detected that the remaining amount of the storage battery is in the third range is a normal operation mode.   The hybrid recording / reproducing apparatus according to claim 1, wherein the dynamic storage device is an optical disk device. The remaining amount detecting unit detects the remaining amount of the storage battery by at least a fourth value P0 that is a remaining amount necessary for opening and closing the tray of the optical disc device,
When the remaining amount detection unit detects that the fourth value P0 or less, the device control unit opens the tray of the optical disc apparatus and takes out the optical disc when the optical disc is loaded in the optical disc apparatus. The hybrid recording / reproducing apparatus according to claim 3, wherein the apparatus is capable of being used.   The device control unit outputs information for displaying the state of the remaining amount of the storage battery and / or the current operation mode according to the detection result from the remaining amount detection unit that detects the remaining amount of the storage battery. The hybrid recording / reproducing apparatus according to claim 1, wherein: Hybrid recording driven by a storage battery with a dynamic storage device that needs to be driven by a motor for recording and / or reproduction of data and a static storage device that does not need to be driven by a motor for recording and / or reproduction of data A control method of a playback device,
The remaining amount of the storage battery includes a first range in which the remaining amount of the storage battery is less than or equal to a first value P1, a second range that exceeds the first value P1 and is less than or equal to a second value P2, and a second range Detecting in at least three ranges of a third range that exceeds the value P2 and is less than or equal to full charge;
And a step of driving the hybrid recording / reproducing apparatus in three different operation modes according to the detected three ranges. In the first operation mode when it is detected that the remaining amount of the storage battery is in the first range, the motor drive of the dynamic storage device is stopped, and recording and / or reproduction by only the static storage device is performed. Operation mode to perform,
The second operation mode in the case where it is detected that the remaining amount of the storage battery is in the second range is given priority to recording and / or reproduction by the static storage device, and to start up the dynamic storage device slowly. Power mode,
6. The control method for a hybrid recording / reproducing apparatus according to claim 5, wherein the third operation mode when the remaining amount of the storage battery is detected to be in the third range is a normal operation mode. . The dynamic storage device is an optical disk device;
The step of detecting the remaining amount includes a step of detecting the remaining amount of the storage battery at least by a fourth value P0 that is a remaining amount necessary for opening and closing the tray of the optical disc device,
When it is detected that the step of detecting the remaining amount is equal to or less than the fourth value P0, the step of controlling the device opens the tray of the optical disc device when the optical disc is loaded in the optical disc device. The method for controlling a hybrid recording / reproducing apparatus according to claim 6, further comprising a step of enabling removal of the optical disk.   The step of controlling the device outputs information for displaying the state of the remaining amount of the storage battery and / or the current operation mode according to the detection result from the remaining amount detection unit that detects the remaining amount of the storage battery. The method for controlling a hybrid recording / reproducing apparatus according to claim 6, further comprising a step.   The program for functioning a computer as each part of the hybrid recording / reproducing apparatus of any one of Claim 1 to 4.   A computer-readable storage medium in which the program according to claim 8 is recorded.

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