JP4740104B2 - Data processing device, data processing system, and peripheral device - Google Patents

Description

  The present invention relates to a data processing device capable of processing content data, a data processing system including the data processing device, and a peripheral device connectable to the data processing device.

Various information can be exchanged by connecting computers or between a computer and peripheral devices via an interface such as a network or USB (Universal Serial Bus). For example, according to the technique described in Patent Document 1, a computer and a plurality of types of portable terminals are connected via a network, so that information can be exchanged between the two. Further, according to the technique described in Patent Document 1, since the computer is provided with means for identifying the mobile terminal, the mobile terminal can be identified (see, for example, Patent Document 1).
JP 2002-259294 A JP 2000-31215 A JP 61-121555 A

  A data processing device (for example, a computer) and a peripheral device (for example, a portable audio device, a mobile phone, an in-vehicle audio device, etc.) are connected via an interface such as a USB, and content data such as music data is connected between the devices. The delivery of is done. Thereby, the music which a user likes can be enjoyed in various places.

  However, the performance of the data processing device and the peripheral device varies. For example, in the case of music data, even if the data processing device can play back music data, the peripheral device connected to the data processing device There is a possibility that the reproduction process cannot be performed. Further, even if reproduction processing is possible, music data stored in the data processing device may not be completely delivered to the peripheral device because the capacity of the peripheral device is smaller than the capacity of the data processing device. is there.

  In view of the above problems, an object of the present invention is to provide a technique that can execute processing according to the performance of a peripheral device connected to a data processing device by determining the performance of the connected peripheral device. .

  In the present invention, in order to solve the above-described problem, the performance information of the peripheral device set in advance according to the performance of the peripheral device is acquired, and the processing content of the data processing device is changed according to the acquired performance information of the peripheral device. I decided to change it. Thereby, it is possible to easily identify the peripheral device and to execute processing according to the performance of the peripheral device.

Specifically, the present invention is capable of transferring content data to and from the peripheral device by being electrically connected to the peripheral device having the capability of processing the content data, and at least the peripheral device. A data processing device having performance, data processing means for processing content data, and performance information acquisition means for acquiring performance information of the peripheral device preset according to the performance of the peripheral device from the peripheral device; The performance information of the peripheral device acquired by the performance information acquisition means and the performance information of the data processing device included in the data processing device are compared, and the performance of the peripheral device corresponds to the performance of the data processing device. The performance judging means for judging whether or not the performance judging means does not correspond to the performance of the peripheral device and the performance of the data processing device. If it is determined, and a processing content changing means for changing in accordance with the process of the content data on the performance information of the peripheral device in the data processing means.

  In recent years, a standardized interface is generally used for connection between a data processing device and a peripheral device. Therefore, also in the present invention, devices can be connected to each other by such a standardized interface. Note that the data processing device and the peripheral device may be electrically connected and may be wired or wireless.

  The standardized interface increases the compatibility between devices. However, even if the devices are compatible, the performance of each device varies. Thus, for example, if the performance of the peripheral device does not correspond to the performance of the data processing device, in other words, if the performance of the peripheral device is inferior to the performance of the data processing device, the processing performed by the data processing device is complete. There is a risk of not being executed. For example, this is a case where the transfer capability of content data from the data processing device to the peripheral device exceeds the reception capability of the peripheral device.

  Therefore, the data processing apparatus according to the present invention includes a performance information acquisition unit that acquires performance information of a peripheral device set in advance, and a process of changing the processing content of the data processing device according to the acquired performance information of the peripheral device Content changing means. By changing the processing content of the data processing device according to the acquired performance information, it is possible to execute processing suitable for the peripheral device. Note that the processing performed in the data processing device to be changed is processing related to the connected peripheral device. For example, a process of transferring content data stored in the data processing device to the peripheral device is exemplified.

  In changing the processing content, it is necessary to determine whether the peripheral device has performance corresponding to the performance of the data processing device. Therefore, in the present invention, such a determination is made by the performance determination means. Specifically, the performance judging means compares the performance information of the peripheral device and the performance information of the data processing device, and judges whether or not the performance of the peripheral device corresponds to the performance of the data processing device. . Note that the performance information of the peripheral device can be set in advance according to the performance of the peripheral device. The performance information of the peripheral device is preferably in a format that can be easily compared with the performance information of the data processing device.

  Here, it is preferable to change the processing content in the processing content changing means within the performance range of the data processing apparatus. This is because when the change processing according to the present invention is executed, at least the performance of the data processing device needs to exceed the performance of the peripheral device. Therefore, it is preferable to always optimize the performance of the data processing apparatus.

  Further, the present invention may determine whether or not the peripheral device has been upgraded, and determine whether or not the performance of the data processing device is compatible with the upgraded peripheral device. This makes it possible to execute processing more suitable for the performance of the peripheral device. Information about version upgrade can be included in the performance information. However, the present invention is not limited to this and may be provided separately.

Here, each of the performance information of the peripheral device and the performance information of the data processing device includes at least one of type information regarding the type of content data that can be processed and capacity information regarding the capacity of the content data that can be stored. Or one can be included. By comparing the type information regarding the types of content data that can be processed, it is possible to prevent, for example, content data that cannot be processed from being erroneously transmitted. Further, by comparing the capacity information regarding the capacity of the content data that can be accommodated, it is possible to prevent erroneous transmission of the content data that cannot be accommodated. These pieces of performance information can be stored in storage means provided in each device.

  In addition, the present invention can be configured to further comprise confirmation means for requesting confirmation from the user when the processing content changing means changes the processing content of the content data. Thereby, it is possible to execute a process reflecting the user's preference. In addition, this invention is good also as a structure provided with the notification means which notifies to a user instead of a confirmation means. As a result, the user can check the process currently being performed.

  The present invention may be a data processing system including the above-described data processing device and peripheral devices. Further, it may be a peripheral device that can be connected to the data processing device.

  Further, the present invention may be a method or a program for realizing any of the functions described above. The present invention may also be a computer-readable storage medium that records such a program.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which can perform the process according to the performance of the peripheral device connected to a data processor by determining the performance of the connected peripheral device can be provided.

  Next, an embodiment of a data processing system according to the present invention will be described with reference to the drawings. The data processing system includes a data processing device and peripheral devices according to the present invention.

<First embodiment>
(Constitution)
FIG. 1 is a diagram showing a schematic configuration of a data processing system according to the present embodiment. The data processing system according to the present embodiment is electrically connected to a notebook personal computer 10 (hereinafter simply referred to as PC) capable of reproducing content data as music data (hereinafter simply referred to as content data) and the PC 10. The head unit 30 is connected and can be installed on a moving body 200 such as a vehicle and can provide music to a user in the moving body. The PC 10 corresponds to the data processing device of the present invention, and the head unit 30 corresponds to the peripheral device of the present invention. As shown in FIG. 1, in addition to the head unit 30, a portable music medium 40 and a mobile phone 60 capable of reproducing content data can be connected to the PC 10. In the present embodiment, the PC 10, the head unit 30, the portable music medium 50, and the mobile phone 60 are installed in the moving body 200. However, the present invention is not limited to this. The PC 10 may be of a desktop type. In this case, the portable music media 50 and the mobile phone 60 as peripheral devices can be installed indoors, for example.

  A USB (Universal Serial Bus) cable is used to connect the PC 10 to the head unit 30, the portable music medium 50, and the mobile phone 60. By using such a standardized interface, compatibility between devices increases. However, the present invention is not limited to the above. That is, the PC 10 and the peripheral device such as the head unit 30 may be electrically connected and may be either wired or wireless.

Next, the PC 10 will be described. The PC 10 includes a central processing unit 1 (hereinafter referred to as a CPU), an input device such as a keyboard / mouse, an output device such as a display, a memory 6, and a hard disk. Here, the description will be focused on the functions that are characteristic of the present invention among the functions of the PC 10, and descriptions of general functions will be omitted. FIG. 2 is a functional block diagram of the PC 10. As shown in FIG. 2, the CPU 1 stores the performance information, which is information related to the performance of the processing unit 2 that processes the content data and the connected head unit 30, in the memory 41 (FIG. 3) of the USB connection unit 40 of the head unit 30. The performance information acquisition unit 3 (corresponding to the performance information acquisition means of the present invention) that is acquired from the reference unit), the performance of the PC 10 and the performance of the head unit 30 are compared, and the performance of the head unit 30 corresponds to the performance of the PC 10 A performance determination unit 4 (corresponding to the performance determination unit of the present invention) that determines whether or not the content data is processed, and the processing content of the content data is changed according to the performance of the head unit 30 A changing unit 5 (corresponding to processing content changing means of the present invention) is provided.

  Further, the memory 6 stores performance information of the PC 10. The performance information of the PC 10 is, for example, information on the type of content data that can be played back by the PC 10 or information on the number of pieces of content data that the PC 10 can accommodate. These pieces of information are preferably in a format that can be easily compared with the performance information of the head unit 30.

  Next, the head unit 30 will be described. FIG. 3 is a diagram illustrating a schematic configuration of the head unit 30. The head unit 30 has a CPU 31. The CPU 31 has a processing unit 32 therein, and the processing unit 32 is stored in a hard disk drive (hereinafter referred to as HDD) 33 and a CD / DVD deck (hereinafter simply referred to as CD deck) 34. Various contents data are accessed and processing such as reproduction of the contents data is performed.

  In addition, a DSP (Digital Signal Processor) reproduction control unit 36 is electrically connected to the processing unit 32, and the DSP reproduction control unit 36 performs arithmetic processing on the content data sent from the processing unit 32, and enters the moving body. An electric signal for music performance is sent to the power amplifier 37 provided.

  The processing unit 32 is electrically connected to the encoding / decoding unit 38 and the encryption / decryption unit 39. The encode / decode unit 38 compresses the content data when storing the content data, and decompresses the compressed content data for arithmetic processing in the DSP playback control unit 36. The encryption / decryption unit 39 performs encryption for protecting the copyright of content data stored in the HDD 33 and the like, and decryption thereof.

  The CPU 31 is also electrically connected to the memory 35, and can access information stored in these memories and read and update the stored information as necessary.

  Further, the processing unit 32 of the head unit 30 according to the present embodiment is provided with a USB connection unit 40 to which a USB cable can be connected. The PC 10 and the portable music medium 50 can be connected via the USB connection unit 40. Further, the USB connection unit 40 has a memory 41. The memory 41 stores performance information of the head unit 30. The performance information can be encoded in advance and stored in the memory 41 as a part of the product ID.

FIG. 4 is an image diagram showing a state where coded performance information is stored in the memory 41. As shown in the figure, the memory 41 stores identification information including a vendor ID, a product ID, and a serial number. Usually, of these identification information, the product ID is set so that the connected PC 10 can always obtain it. For example, the vendor ID is identification information specified by the USB manufacturer and supplier, whereas the product ID can be assigned by the manufacturer. In the head unit 30 according to the present embodiment, in view of such a background, the product ID
The performance information encoded as a part of the information is stored in the USB connection unit 40 of the head unit 30 in advance. More specifically, the product ID is composed of an ID of the product itself, a first performance code, and a second performance code. Accordingly, the performance information acquisition unit 3 of the PC 10 can acquire the performance information of the PC 10 only by connecting to the PC 10 via the USB connection unit 40.

  Here, FIG. 5 is a diagram illustrating a setting example of the first performance code, and FIG. 6 is a diagram illustrating a setting example of the second performance code. First, in the first performance code, the number of contents data that can be accommodated is set, and the case where the number of contents data that can be accommodated is 1,000 songs is code 1, and the number of contents data that can be accommodated is 10,000 songs Is set to code 2. In the second performance code, the version information of the head unit 30 is set. The version A is set as code A, and the version 2.0 is set as code B. As described above, the performance information is encoded in advance and stored in the memory 41 of the USB connection unit 40, whereby the performance information acquisition unit 3 of the PC 10 automatically encodes the performance when the head unit 30 is connected to the PC 10. Information can be acquired. Note that the performance information of the PC 10 stored in the PC 10 is preferably stored in advance in a format corresponding to the first performance code and the second performance code. In this embodiment, the performance information is stored in the memory 41 of the USB 40. However, the present invention is not limited to this. For example, you may store in the memory 35 provided in the main body of the head unit 30.

(processing)
Next, a process content change process executed by the CPU 1 of the PC 10 will be described. FIG. 7 is a diagram showing a processing content change processing flow. In the following description, the PC 10 corresponds to all of 1,000 songs, 10,000 songs, versions 1.0 and 2.0, and the head unit 30 corresponds to 1,000 songs, version 1.0. The case will be described.

  First, in step S01, the first performance code and the second performance code stored in the memory 41 are acquired by the performance information acquisition unit 3. Specifically, code 1 is acquired as the first performance code, and code A is acquired as the second performance code. The acquisition of these codes is started when the head unit 30 is connected to the PC 10. When the process of step S01 ends, the process proceeds to step S02.

  In step S02, the performance information of the PC 10 and the performance information of the head unit 30 are compared, and it is determined by the performance determination means whether there is performance information of the head unit corresponding to the performance information of the PC 10. In the case of this embodiment, the PC 10 has codes 1 and 2 as the first performance code and codes A and B as the second performance code, and the head unit 30 has the code 1 and the second performance as the first performance code. Since the code A is the code, it is determined that the corresponding code exists. If it is determined in step S02 that the corresponding code exists, the process proceeds to step S03. On the other hand, if it is not determined that the corresponding code exists, the process content change process ends.

  In step S <b> 03, the content of processing performed by the processing unit 2 of the CPU 10 is changed by the processing content changing unit 5. Since the CPU 10 can accommodate up to 10,000 songs and supports up to version 2.0 of the connected head unit, a head that can accommodate only 1000 songs if 10,000 songs are accommodated. The process of transferring 10,000 songs to the unit 30 will be executed. That is, an incomplete process is executed. However, according to the CPU 10 according to the present embodiment, it is possible to execute a process of limiting the number of songs to be transferred to 1,000 according to the performance of the head unit 30, and thus prevent such a problem. It becomes possible to do. When the process of step S03 ends, the process content change process ends.

  Note that before executing the process of transferring content data from the PC 10 to the head unit 30, the user may be notified that the transfer process is to be executed. Thereby, the user can confirm the process performed by PC10. Alternatively, the transfer process may be executed after receiving a user instruction. As a result, it is possible to execute processing more reflecting the user's preference. If it is determined in step S02 that there is no performance information of the head unit 30 corresponding to the performance information of the PC 10, this may be notified to the user. As a result, the user can check the processing state.

  For example, the following processing may be performed after step S01. That is, the CPU 1 saves the version information when the head unit 30 was connected last time in the memory 6, and the upgrade of the head unit 30 is performed by comparing the saved upgrade information with the newly acquired upgrade information. If it is determined that the version has been upgraded, it may be determined whether or not the performance of the PC 10 is compatible. If the CPU 10 needs to be upgraded, the user may be notified that the upgrade is necessary. Moreover, you may comprise so that automatic update can be performed.

(effect)
According to the data processing system according to the first embodiment described above, the performance of the head unit 30 can be easily determined, and as a result, processing corresponding to the performance of the head unit 30 can be performed. Further, by using the performance code in determining the performance of the head unit 30, it becomes easy to compare the performance of the PC 10 and the performance of the head unit 30. As a result, whether the performance of the head unit 30 corresponds to the performance of the PC 10 or not. It becomes easy to judge whether.

<Second embodiment>
(Constitution)
Next, a data processing system according to the second embodiment will be described. FIG. 8 is a diagram showing a schematic configuration of the data processing system according to the present embodiment. The data processing system according to the present embodiment can be installed in a moving body 200 such as a vehicle and can provide music to a user in the moving body. The head unit 30a is electrically connected to the head unit 30a and receives content data. PC 10a capable of reproduction processing. As shown in FIG. 8, in addition to the PC 10a, a portable music medium 50 and a cellular phone 60 capable of reproducing content data can be connected to the head unit 30a. In addition, about the structure already demonstrated, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  Here, the data processing system according to the first embodiment described above is compared with the data processing system according to the present embodiment. In the data processing system according to the first embodiment, the head unit 30, the portable music medium 50, and the mobile phone 60 corresponding to the peripheral device of the present invention are connected to the PC 10 corresponding to the data processing device of the present invention. . On the other hand, in the data processing system according to the present embodiment, a PC 10a, a portable music medium 50, and a mobile phone 60 are connected to a head unit 30a corresponding to the head unit 30 in the first embodiment. That is, in the second embodiment, the head unit 30a corresponds to the data processing apparatus of the present invention, and the PC 10a corresponds to the peripheral apparatus of the present invention, and the data processing system according to the first embodiment and the second embodiment. The data processing system according to the embodiment is different.

Therefore, in the data processing system according to the second embodiment, the performance information acquisition unit 3, the performance determination unit 4, and the processing content change unit 5 described in the first embodiment are provided on the head unit 30a side. FIG. 9 is a functional block diagram of the head unit 30a. As shown in FIG. 9, the CPU 31 includes a performance information acquisition unit 3 and a performance determination unit 4 in addition to the processing unit 32, the encoding / decoding unit 38, and the encryption / decryption unit 39 described in the first embodiment. A processing content changing unit 5 is provided. The memory 35 stores performance information of the head unit 30a. The configuration of the head unit 30a is basically the same as the configuration of the head unit 30 described in the first embodiment, and thus the description thereof is omitted.

  FIG. 10 is a functional block diagram of the PC 10a. As shown in the figure, the CPU 1 is provided with a processing unit 2 for processing content data, but is not provided with a performance information acquisition unit 3 or the like as in the first embodiment. The memory 6 stores in advance performance information corresponding to the performance of the PC 10a. The configuration of the performance information is the same as that in the first embodiment. Therefore, the description is omitted. In this embodiment, the performance information is stored in the memory 6, but may be stored in a memory (not shown) of the USB connection unit.

(processing)
Next, processing content change processing executed by the CPU 31 of the head unit 30a will be described. As described above, in the second embodiment, the head unit 30a corresponds to the data processing device of the present invention, and the PC 10a corresponds to the peripheral device of the present invention. The data processing system according to the second embodiment is different. Accordingly, a process corresponding to the process content change process executed by the CPU 1 in the first embodiment is executed by the CPU 31 of the head unit 30a, and the process contents are the same (see FIG. 7). Therefore, the description is omitted.

  As described above, according to the data processing system according to the second embodiment, the head unit 30a includes the functions of the data processing apparatus of the present invention, so that the head unit 30a is connected to the head unit 30a. Processing according to the performance of the device (PC 10a, portable music media 50, mobile phone 60) can be performed.

<Third embodiment>
Next, a data processing system according to the third embodiment will be described. FIG. 11 is a diagram showing a schematic configuration of a data processing system according to the third embodiment. As shown in the figure, the data processing system according to the third embodiment includes a head unit 30X manufactured by X company, a PC 10X manufactured by X company electrically connected to the head unit 30X, and a product manufactured by Y company. A portable music medium 50Y and a mobile phone 60Z manufactured by Z company are provided.

  The head unit 30X basically has the same function as the head unit 30a described in the second embodiment. The PC 10X has the same function as the PC 10a described in the second embodiment. Therefore, it is basically the same as the data processing system of the second embodiment except that the manufacturer is specified.

  By using a standardized interface such as USB, compatibility between devices can be improved. As in the data processing system of the present embodiment, the manufacturer of the data processing device and the peripheral device connected thereto is often different. However, for example, when the manufacturers match, such as the head unit 30X and the PC 10X in this embodiment, an additional function that is executed only when devices of the same manufacturer are connected can be executed.

However, when a standardized interface is used as described above, the data processing device may not be able to identify whether the connected peripheral device has an additional function that can be executed by the data processing device. In order to eliminate such a situation, in the data processing system according to the third embodiment, an additional function code corresponding to the additional function is provided in advance and stored in the storage unit of the PC 10X.

  FIG. 12 is an image diagram showing a state in which information relating to the encoded additional function is stored in the memory 6. As shown in the figure, the product ID is composed of an ID of the product itself, a first performance code, a second performance code, and an additional function code. In this way, it is possible to easily determine whether the connected peripheral device has information regarding the additional function, and as a result, the additional function can be executed.

  Although the preferred embodiments of the present invention have been described above, the data processing system according to the present invention is not limited to these, and can include combinations of these as much as possible. For example, in the above-described embodiment, the data processing device is provided with a configuration such as the performance information acquisition unit, the performance determination unit, and the processing content change unit. However, a configuration corresponding to this may be provided in the peripheral device.

1 is a diagram illustrating a schematic configuration of a data processing system according to a first embodiment. It is a functional block diagram of PC concerning 1st embodiment. It is a figure which shows schematic structure of the head unit which concerns on 1st embodiment. It is an image figure which shows the state by which the encoded performance information is stored in memory. It is a figure which shows the example of a setting of a 1st performance code. It is a figure which shows the example of a setting of a 2nd performance code. It is a figure which shows a processing content change process flow. It is a figure which shows schematic structure of the data processing system which concerns on 2nd embodiment. It is a functional block diagram of the head unit concerning a second embodiment. It is a functional block diagram of PC concerning 2nd embodiment. It is a figure which shows schematic structure of the data processing system which concerns on 3rd embodiment. It is an image figure which shows the state where the information regarding the encoded additional function is stored in memory.

Explanation of symbols

1, 31 ... CPU
2, 32 ... processing unit 3 ... performance information acquisition unit 4 ... performance judgment unit 5 ... processing content change unit 6 ... memory 7 ... performance information 10 ... PC
30 ... Head unit 50 ... Portable music media 60 ... Mobile phone

Claims (6)

By being electrically connected to a peripheral device having the performance of processing content data, the content data can be exchanged with the peripheral device and at least the data processing device having the performance of the peripheral device. And
Data processing means for processing content data;
Performance information acquisition means for acquiring, from the peripheral device, performance information of the peripheral device set in advance according to the performance of the peripheral device;
Compare the performance information of the peripheral device acquired by the performance information acquisition means with the performance information of the data processing device included in the data processing device, and whether the performance of the peripheral device corresponds to the performance of the data processing device A performance judging means for judging whether or not,
When the performance determining unit determines that the performance of the peripheral device does not correspond to the performance of the data processing device, the processing content of the content data in the data processing unit is changed according to the performance information of the peripheral device Processing content changing means;
Equipped with a,
The performance information of the peripheral device includes upgrade information that is information related to the upgrade of the peripheral device,
The performance determination means also determines whether or not the performance of the data processing device corresponds to the performance of the upgraded peripheral device when the upgrade information is included in the performance information of the peripheral device; Data processing device. Pre Symbol processing content changing means, if the performance of the data processing device is compatible to the performance of the peripheral device has been upgraded, the processing of the content data in said data processing means within the scope of the performance data processing device has Is changed according to the performance information of the peripheral device,
The data processing apparatus according to claim 1. Each of the performance information of the peripheral device and the performance information of the data processing device includes at least one of type information relating to the type of content data that can be processed and capacity information relating to the capacity of the content data that can be accommodated. The data processing apparatus according to claim 1, which is included. The data processing apparatus according to any one of claims 1 to 3 , further comprising confirmation means for requesting confirmation from a user when the processing content changing means changes the processing content of content data. A peripheral device capable of processing content data; and
A data processing system comprising: a data processing device that is electrically connectable to the peripheral device, can exchange content data with the peripheral device, and has at least the performance of the peripheral device. And
The peripheral device is:
Storage means for storing peripheral device performance information set in advance according to the performance of the peripheral device;
The data processing device includes:
Data processing means for processing content data;
Performance information acquisition means for acquiring performance information of the peripheral device stored in the storage means of the peripheral device;
Based on the performance information acquired by the performance information acquisition means, the performance information of the peripheral device is compared with the performance information of the data processing device stored in the storage means of the data processing device. And a performance determination means for determining whether or not the performance of the data processing device corresponds,
When the performance determining unit determines that the performance of the peripheral device does not correspond to the performance of the data processing device, the processing content of the content data in the data processing unit is changed according to the performance information of the peripheral device Processing content changing means;
Equipped with a,
The performance information of the peripheral device includes upgrade information that is information related to the upgrade of the peripheral device,
The performance determination means also determines whether or not the performance of the data processing device corresponds to the performance of the upgraded peripheral device when the upgrade information is included in the performance information of the peripheral device; Data processing system. A peripheral device that can be connected to a data processing device having the performance of processing content data, can exchange content data with the data processing device, and has a performance that does not exceed the performance of the data processing device. There,
When the data processing device determines that the performance of the peripheral device and the performance of the data processing device do not correspond to each other, the peripheral device is used as a reference when changing the processing content performed by the data processing device. have a performance information that is preset according to performance,
The performance information includes upgrade information that is information related to the upgrade of the peripheral device,
The peripheral device, when changing the processing content performed in the data processing device, it is also determined whether or not the performance of the data processing device corresponds to the performance of the upgraded peripheral device.

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