JP2007299439A - Information processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device which recovers normally from a standby mode even if a nonvolatile memory is connected again after removed in a standby mode, in an information processor which stores data for recovering from the standby mode in the detachable nonvolatile memory. <P>SOLUTION: Recognition information is generated in transition to the standby mode and this recognition information is recorded on both the nonvolatile memory in equipment and a detachable nonvolatile memory. In recovering from the standby mode, the recognition information recorded in both nonvolatile memories are compared and the recovery processing will be performed if both are identical. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a video information processing apparatus, a control method for the video information processing apparatus, a control program for the video information processing apparatus, and a recording medium on which the control program for the video information processing apparatus is recorded, for example, a removable memory (hereinafter, removable memory). The present invention relates to an information processing apparatus such as a disk player equipped with a memory) or a network video terminal device that downloads and plays back video and audio data from a network-connected AV server that distributes video and audio data.

With the recent digitalization, audio / video content is also converted into audio / video data by digital technology, and it is also possible to record efficiently on video information processing devices, etc. by using data compression / decompression technology together. It is coming. As for disk media, large-capacity disks such as DVDs and Blu-ray disks have been proposed and spread.

In particular, Blu-ray Disc recording / playback devices are equipped with an auxiliary storage device that can store data according to content, such as saving user data and downloading content. A usage method has been proposed (for example, Patent Document 1).

On the other hand, it is important to suppress the power consumption of the system due to the recent energy situation. Even in the information processing apparatus described above, when the user is not using the function, the function is stopped and the state is changed to the standby state (hereinafter also referred to as suspend), and the state before the stop by the user's use start request is restored ( The power consumption can be reduced by a suspend / resume function for performing resume (hereinafter also referred to as “resume”) and a hibernation / resume function for recording the operation state in the auxiliary storage device and turning off the system. In particular, the hibernation function can reduce power consumption by turning off the power, and can also be applied to a Blu-ray disc device equipped with an auxiliary storage device.

When the above auxiliary storage device is a removable medium such as a USB memory or a removable hard disk drive, the removable medium storing the state when the hibernation process was executed may have been removed by the user, and it returns to normal. There was a case that could not be done. For this reason, a method for mounting a function for detecting that a medium has been removed has been proposed (for example, Patent Document 2).

JP-A-2005-159589 (first page, FIG. 1)

JP-A-8-16270 (first page, FIG. 1)

However, according to Patent Document 2, when the removable medium is removed from the apparatus and connected again, there is a problem that the resume activation cannot be performed. For example, when the removable medium is removed, the video / audio data is recorded on the removable medium with a personal computer or the like, and the removable medium is attached to the apparatus again, the resume activation cannot be performed. In addition, a means for detecting insertion / removal of the removable medium is required, which raises a problem of increasing costs.

The present invention has been made to solve the above-described problems. The CPU, the memory, the first nonvolatile memory for storing the program, and the rewritable second nonvolatile memory are detachable. And a third nonvolatile memory, and the information processing apparatus capable of shifting to the standby mode generates recognition information that can be specified by the memory when shifting to the standby mode, and uses the recognition information as the second nonvolatile memory. And means for recording in the third nonvolatile memory and means for comparing the recognition information recorded in the second nonvolatile memory and the third nonvolatile memory when returning from the standby mode.

  Since the present invention is configured as described above, even if a removable memory in which data for returning from the suspend mode is recorded is removed once in the suspend mode and reattached, the memory at the time of entering the suspend mode is specified. Therefore, it is possible to return from the standby mode.

Embodiment 1 FIG.
FIG. 1 is a diagram for explaining an information processing apparatus according to an embodiment of the present invention. Here, a video information apparatus with a built-in disk drive will be described as an example.

In the figure, 10 is a video information device, 101 is a central processing unit (CPU), and 103 is a memory. Reference numeral 102 denotes a program ROM (Read Only Memory) incorporating a program, which is a first nonvolatile memory. Reference numeral 104 denotes a writable small-capacity second nonvolatile memory, which is realized by an EEPROM (Electronically Erasable and Programmable Read Only Memory) or the like.

106 is a graphic controller, 113 is a monitor, 107 is a sound controller, and 114 is a speaker. 116 is a disk, 109 is a disk drive, and 108 is a disk controller. Reference numeral 115 denotes a decoder, which inputs content data recorded on the disc 116 via the disc drive 109 and the disc controller 108, decodes the data, and outputs a video signal to the graphic controller 106 and an audio signal to the sound controller 107. Send to.

Reference numeral 105 denotes an external memory interface. Reference numeral 112 denotes a removable memory, which is a third nonvolatile memory. The removable memory 112 is connected to the external memory interface 105, and data input / output with the video information apparatus 10 is controlled. The third nonvolatile memory may be another removable medium such as a removable hard disk drive.

Reference numeral 110 denotes a remote control receiving unit that receives a user instruction input from the remote control 111 and transmits it to the CPU 101.

The CPU 101, the program ROM 102, the memory 103, the nonvolatile memory 104, the decoder 115, the external memory interface 105, the graphic controller 106, the sound controller 107, and the disk controller 108 are connected via the BUS 121, and based on the program in the program ROM 102, The CPU 101 uses the memory 103 to execute a program as the video information device 10 and controls each device.

Next, the operation will be described. As an example, the operation when the disc 116 is inserted into the disc drive 109 and played back will be described. When the user sends a playback instruction using the remote controller 111, a playback instruction signal is sent to the CPU 101 via the remote control receiver 110. Based on this signal, the CPU 101 controls the disk controller 108 and the disk drive 109 to instruct to transmit the data on the disk 116 to the decoder 115.

Further, the CPU 101 sends an instruction signal to the decoder 115, the graphic controller 106, and the sound controller 107, the contents of the disk 116 are demodulated by the decoder 115, and the demodulated data is sent to the monitor 113 via the graphic controller 106 and the sound controller 107. Or speaker 114 for display or reproduction.

In addition, the removable memory 112 can be used via the external memory interface 105, and data can be stored in the removable memory 112 based on the processing content stored in the disk 116.

Here, when the user sends a stop instruction and no operation is performed for a while, the video information processing apparatus 10 shifts to the standby mode.

Processing at this time will be described with reference to the flowchart of FIG. In S101, when the CPU 101 determines to shift to the suspend state, the suspend process is started.

Next, in step S102, the CPU 101 acquires the free capacity information of the removable memory 112.

In S103, the CPU 101 compares the free capacity of the removable memory 112 with the capacity necessary for shifting to the suspend state. If the free capacity of the removable memory 112 is larger than the capacity necessary for shifting to the suspend state, the process after S104 is performed. In this process, the process shifts to the standby mode. If it is smaller, the suspend process is stopped and the power is turned off in S108.

If the free space is sufficient in S103, the CPU 101 acquires the current time information in S104. For example, time information such as 12:12:15 on May 10, 2006 is acquired. Thereafter, the CPU 101 executes the following processes from S105 to S108.

In S105, recognition information that can specify the memory is generated by combining the time information and the random number acquired in S104. Further, suspend information indicating that the state has been changed to the suspended state is created.

In S <b> 106, the CPU 101 records the recognition information created in S <b> 105 in the nonvolatile memory 104 and the removable memory 112. When recording in the removable memory 112, the recognition information may be encrypted to improve security. In addition, the suspend information indicating the transition to the suspend state is recorded in the nonvolatile memory 104.

In S107, suspend data, which is data necessary for resuming, is recorded in the removable memory 112. At this time, the suspended data may be encrypted to improve security.

As shown in FIG. 3, the suspend data includes CPU 101 setting information, memory 103 data, decoder 115 setting information, external memory interface 105 setting information, graphic controller 106 setting information, sound controller 107 setting information, and disk controller. 108 setting information, disc information for identifying the disc 116 inserted in the disc drive 109, and the like. The CPU 101 records these suspend data in the removable memory 112. Thereafter, the power is turned off in S108.

Next, a resume process executed when the user turns on the power or gives a reproduction instruction will be described with reference to the flowchart of FIG. In S201 of FIG. 4, the resume process is started by an event of a power-on or a playback instruction (for example, a playback button is pressed) by the remote controller 111.

The CPU 101 initializes the registers of the CPU 101 and the memory 103 in S202, and acquires suspend information from the nonvolatile memory 104 in S203.

In step S204, the CPU 101 analyzes the suspend information, and executes normal activation in step S210 if the activation is not from suspension. In the case of the normal activation in S210, since the state when the power was turned off last time is not remembered, the activation is performed in the initial setting state stored in the program ROM 102.

  On the other hand, in the case of activation from suspend, the CPU 101 deletes the suspend information recorded in the nonvolatile memory 104 in S205, and further, in S206, the recognition information recorded in the nonvolatile memory 104 and the removable information are deleted. The recognition information recorded in the memory 112 is compared. When the data stored in the removable memory 112 is encrypted, the data is compared after being decrypted.

If the CPU 101 determines in S207 that the recognition information recorded in the non-volatile memory 104 and the recognition information recorded in the removable memory 112 do not match, normal activation of S210 is performed. If the CPU 101 determines in S207 that the recognition information recorded in the nonvolatile memory 104 matches the recognition information recorded in the removable memory 112, it is recorded in the removable memory 112 in S208. Resume processing is executed using the suspend data. When the suspend data stored in the removable memory 112 is encrypted, the resume process is executed after decryption.

By executing the resume process, the resume is started in S209, and can be started in the state before the transition to the suspend state.

It is a block diagram of Embodiment 1 of this invention. It is a flowchart explaining the operation | movement when shifting to suspend mode in Embodiment 1 of this invention. It is a figure explaining the suspend data in Embodiment 1 of this invention. It is a flowchart explaining the operation | movement when returning from suspend mode in Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image | video information processing apparatus, 101 CPU (central processing unit), 102 Program ROM (1st non-volatile memory), 103 Memory (RAM), 104 Non-volatile memory (2nd non-volatile memories, such as EEPROM), 112 Removable memory ( (3rd non-volatile memory)

Claims (7)

In an information processing apparatus including a CPU, a memory, a first nonvolatile memory for storing a program, a rewritable second nonvolatile memory, and a removable third nonvolatile memory, and having a standby mode,
Means for generating recognition information that can be specified by the memory when shifting to the standby mode and recording the recognition information in the second nonvolatile memory and the third nonvolatile memory; An information processing apparatus comprising: a non-volatile memory; and means for comparing recognition information recorded in a third non-volatile memory. The information processing apparatus according to claim 1, wherein the recognition information is generated based on time information. The information processing apparatus according to claim 1, wherein the recognition is encrypted and recorded in a third nonvolatile memory. 2. The information processing apparatus according to claim 1, further comprising means for acquiring information on a free capacity of a third nonvolatile memory when shifting to the standby mode and determining whether to shift to the standby mode based on the free capacity. To 4. The information processing apparatus according to any one of 3 to 4. When transitioning to the standby mode, suspend information indicating transition to the standby mode is recorded in the second nonvolatile memory, and when returning from the standby mode, the suspend information recorded in the second nonvolatile memory is recorded. 5. The information processing apparatus according to claim 1, further comprising means for selecting a starting method using information. 6. The information processing apparatus according to claim 1, wherein suspend data for returning from the standby mode is recorded in the third nonvolatile memory. The information processing apparatus according to claim 6, wherein the suspend data is encrypted and recorded in a third nonvolatile memory.

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