JP2006065906A - Recording and reprocucing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing apparatus in which occurrence of trouble following the replacement of a recording medium by a user can be prevented without rasing a manufacturing cost. <P>SOLUTION: When a power source is applied to a hard disk recorder being one of a recording and reproducing apparatus 1, model information is read out from a HDD (hard disk drive), it is examined whether the model information is correct or not (S1, S2). Further, HDD adaptation information indicating that the HDD is adaptable to the hard disk recorder is read out from the hard disk, and it is examined whether the HDD adaptation information is correct or not (S3, S4). When processing of accessing to the hard disk from the remote controller is instructed (S11), and when the HDD is replaced with a commecial HDD and the model information or the HDD adaptation information is not correct (S12:NO), an error message is displayed (S14) without performing the processing (recording or the like of a broadcasting signal on the hard disk). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording / reproducing apparatus for recording a broadcast signal on a recording medium and reproducing the recorded broadcast signal.

A hard disk recorder, which is one of the broadcast signal recording / reproducing apparatuses, includes a hard disk drive having a large recording capacity such as 100 GB or 200 GB as a recording medium, and can be used for a long time without changing a recording medium such as a DVD-RW. Since broadcasts can be recorded, it is used by many users. Since the hard disk drive is unitized, it is possible for the user to remove the originally installed hard disk drive and replace it with a commercially available one having a large recording capacity. Further, from the idea that it is desirable that the hard disk drive can be easily replaced, it has been proposed that a hard disk recorder is provided with a slot for mounting, and a hard disk drive unitized in this slot can be easily mounted (for example, Patent Documents 1 and 2).
JP 2000-112667 A (paragraphs 0004 to 0005) Japanese Patent Laying-Open No. 2004-23588 (paragraphs 0009 and 0013)

  However, in most hard disk recorders on the market, unlike those disclosed in Patent Documents 1 and 2, the hard disk drive is housed in the housing of the hard disk recorder and cannot be replaced unless the housing cover is opened. It is like that. This is because the hard disk recorder is a household electric appliance that is not supposed to be replaced by the user, unlike a personal computer that is supposed to be replaced by the user, so that it cannot be easily replaced. This is to prevent trouble associated with replacement, for example, trouble that the hard disk recorder does not operate normally after replacement of the hard disk drive.

  However, the hard disk drive can be replaced by removing the mounting screw of the housing cover and opening the cover, and further, the television broadcast can be recorded on the replaced hard disk drive. For this reason, since a large number of users replace the hard disk drive, there is a problem in that many troubles associated with the replacement occur. On the other hand, it may be possible to prevent physical replacement by riveting the hard disk drive to the housing, but this makes it difficult to replace the hard disk drive when it fails. . Although the hard disk recorders disclosed in Patent Documents 1 and 2 reduce the troubles associated with the above replacement, they are still unfamiliar with the consumer electronics products for the general public, and an extra slot for installing a hard disk drive is provided. There is also the problem of increased manufacturing costs.

  The present invention solves the above-mentioned problems, and the problem is that the recording can prevent the occurrence of troubles associated with the replacement of the recording medium by the user without increasing the manufacturing cost. To provide a playback device.

  According to a first aspect of the present invention, there is provided a recording / reproducing apparatus for recording a broadcast signal of a television broadcast on a hard disk of a hard disk drive provided in a housing of the apparatus and reproducing the recorded broadcast signal. Model information acquisition means for acquiring information from the hard disk drive, compatibility information acquisition means for acquiring first compliance information indicating that the hard disk drive recorded in advance on the hard disk is a compatible product, and a model of the hard disk drive The second model information and the storage unit storing the second compatibility information indicating that the hard disk drive is a compatible product, and the first model information and the storage unit acquired by the model information acquisition unit when the power is turned on The stored second model information matches the second model information acquired by the conformity information acquisition means. When the matching information and the second matching information stored in the storage unit do not match, and the determination result is not the same, the recording or reproducing operation with respect to the hard disk is prohibited. Control means.

  Here, the operation of recording or playback is prohibited, but this does not exclude the prohibition of both operations, but prohibits operations other than recording or playback, such as hard disk initialization processing. It is not something that excludes. Further, the above-described model information acquisition unit corresponds to the HDD control unit shown in the embodiment, the conformity information acquisition unit corresponds to the HDD control unit and the recording / reproduction unit described in the embodiment, and the determination unit and the control unit include This corresponds to the control unit shown in the form.

  Thus, when the user removes the hard disk drive originally attached to the recording / reproducing apparatus and replaces it with a commercially available hard disk drive, the first model information matches the second model information, or the first Since the matching information and the second matching information cannot be matched, the recording / playback apparatus cannot record or play back the television broadcast. As a result, the user does not replace the hard disk drive, and troubles associated with the replacement can be prevented. In addition, the above can be realized without adding electronic parts and mechanism parts, so that the manufacturing cost does not increase. Furthermore, since it is determined whether the hard disk drive model is correct and compatible when the power is turned on, the above determination is not performed each time an instruction to record TV broadcasts is given from the remote control. It is also possible to start recording immediately. Furthermore, since it can be determined whether or not the correct model of the hard disk drive is compatible, no read error or the like occurs when determining whether or not it is compatible.

  In the second invention, in a recording / reproducing apparatus for recording a broadcast signal on a recording medium provided in a housing of the apparatus and reproducing the recorded broadcast signal, the recording medium pre-recorded on the recording medium is a conforming product. An acquisition unit that acquires first conformity information indicating that there is a storage unit that stores in advance second conformance information that indicates that the recording medium is a conforming product, and a first conformation information and storage unit that are acquired by the acquisition unit. Control means for prohibiting a recording or reproducing operation on the recording medium when the stored second matching information does not match.

  Here, the recording or reproduction operation is prohibited, but this does not exclude the prohibition of both operations, and the operation other than the recording or reproduction, for example, the initialization processing of the recording medium is prohibited. This is not to exclude. The acquisition means corresponds to the HDD control unit and the recording / reproducing unit shown in the embodiment when the recording medium is a hard disk, and for accessing the semiconductor memory or the like when the recording medium is a semiconductor memory or the like. This corresponds to a read / write circuit. The control unit shown in the embodiment corresponds to the control means.

  Thus, when the user removes the recording medium originally attached to the recording / reproducing apparatus and replaces it with a commercially available recording medium, the first conforming information and the second conforming information cannot be matched. Therefore, it becomes impossible to record or reproduce the broadcast by the recording / reproducing apparatus. As a result, the user does not replace the recording medium, and troubles associated with the replacement can be prevented. In addition, the above can be realized without adding electronic parts and mechanism parts, so that the manufacturing cost does not increase. Note that there is a possibility that a read error may occur if it is determined whether or not the recording medium is an incorrect model, but if a read error occurs, it is not a compatible product. Can be determined.

  In the embodiment of the second invention, the recording medium is a hard disk of a hard disk drive, and the first compatibility information is recorded in advance on the hard disk.

  According to the present invention, when a user replaces a recording medium such as a hard disk drive, the recording / reproducing apparatus does not perform recording or reproduction operation. Therefore, the user cannot replace the recording medium, and troubles associated with the replacement of the recording medium. Can be prevented in advance. In addition, the manufacturing cost of the recording / reproducing apparatus does not increase.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a hard disk recorder (hereinafter referred to as an apparatus) which is one of recording / reproducing apparatuses according to the present invention. This apparatus records and reproduces a television broadcast video signal and an audio signal (hereinafter collectively referred to as a broadcast signal) on the hard disk 11a. Inside the housing 10 of the apparatus, a printed circuit board (not shown) on which a tuner 15 and the like are mounted, an HDD (Hard Disk Drive) 11 and the like are housed. Unless the screws are removed and the cover of the housing 10 is opened, the HDD 11 Cannot be exchanged. The HDD 11 records a broadcast signal on the hard disk 11a, the hard disk 11a, a recording / reproducing unit 11b for reproducing the broadcast signal recorded on the hard disk 11a, a recording / reproducing unit 11b, a recording / reproducing head driving unit, a rotation driving unit (not shown), and the like. Are connected to other parts of the apparatus through an ATA-compliant interface.

  First, a broadcast signal recording system will be described. The broadcast signal received by the antenna 31 is selected by the tuner 15, further converted into a digital signal by the A / D converter 14, and then compressed and encoded by the encoding circuit 13 by the MPEG-2 method, for example. . The compressed and encoded broadcast signal is temporarily stored in the recording buffer 12, and then sequentially recorded in the sectors of the data recording area of the hard disk 11a by the recording / reproducing unit 11b. When the recording of the broadcast signal is completed, the HDD control unit 11c instructs the recording / reproducing unit 11b to record information for managing the recorded broadcast signal in the management area of the hard disk 11a in accordance with an instruction from the control unit 20 described later. To do.

  Next, a broadcast signal reproduction system will be described. The broadcast signal recorded on the hard disk 11a is read by the recording / reproducing unit 11b, temporarily stored in the reproduction buffer 16, and then decoded by the decoding circuit 17. The OSD processing circuit 18 superimposes OSD (on-screen display) data output from the control unit 20 on the decoded broadcast signal. The output signal of the OSD processing circuit 18 is converted into an analog signal by the D / A converter 19 and sent to the television 32 through the connection cable 33, and television broadcast video and audio are output from the television 32. The A / D conversion and compression encoding described above are actually performed separately on the broadcast video signal and audio signal, but are not a direct matter of the present invention, and thus the A / D conversion described above. And compression encoding are described in a simplified manner.

  The control unit 20 includes a CPU 20a, a memory 20b (for example, ROM, RAM, and flash memory) and the like, and controls each unit of the device such as the tuner 15 by the CPU 20a executing a program stored in the memory 20b. The memory 20b stores the above OSD data, various control data, and the like. The OSD data read from the memory 20b is sent to the OSD processing circuit 18 by the control unit 20. The remote controller 21 includes a large number of operation keys. When the operation key is pressed, a signal of the operation key is transmitted to the control unit 20. And the control part 20 performs the process according to the operation key pressed by controlling each part of an apparatus, for example, the process which records a broadcast signal on the hard disk 11a.

  FIG. 2 is a flowchart showing the operation of the present invention. First, the operation when the apparatus is turned on will be described. The following processing is performed when the power is turned on because the user turns off the power before replacing the HDD 11 and turns on the power after replacing the HDD 11. When the power is turned on, the control unit 20 reads model information indicating the model of the HDD 11 from the HDD 11 (S1). This reading is performed when the control unit 20 transmits an ATA-compliant command for reading the model information to the HDD control unit 11c and receives the model information from the HDD control unit 11c.

  Next, the control unit 20 reads from the HDD 11 by checking whether or not the model information indicating the model of the HDD 11 stored in advance in the memory 20 b is the same as the model information read from the HDD 11. It is determined whether the model information is correct (S2). The model information in the memory 20b includes information indicating the model of the HDD 11 attached to the apparatus (that is, the same information as the model information read from the HDD 11 of the model) stored in a nonvolatile memory such as a flash memory. It was written at the time of manufacture.

  If the model information read from the HDD 11 is correct (S2: YES), that is, if the model of the HDD 11 is correct, the control unit 20 transmits a predetermined ATA-compliant command to the HDD control unit 11c, thereby managing the hard disk 11a. The HDD compatibility information recorded at a predetermined position in the area is read from the HDD 11 (S3). In this case, the HDD control unit 11c that has received the command reads out the HDD compatibility information from the hard disk 11a and transmits it to the control unit 20 by controlling the recording / reproducing unit 11b and the like. This HDD compatibility information is information indicating that the HDD 11 is compatible with the apparatus, and is information that is not recorded on the hard disk of the HDD of the same model that is commercially available.

  The HDD compatibility information is recorded at a predetermined position in the management area of the hard disk 11a, for example, by setting the apparatus to the inspection adjustment mode when the apparatus is manufactured at a factory and performing a predetermined operation. This HDD compatibility information is, for example, a character string consisting of alphanumeric characters and hyphens of up to 64 digits, and includes the name of the device manufacturer, the device model, the version number for each model, and the like. Further, it is desirable to add a character string other than the above to the HDD compatibility information so that the HDD compatibility information is not easily known to the user. The recording area and recording method of the HDD compatibility information on the hard disk 11a are not limited to those described above. If the HDD compatibility information is recorded on the hard disk 11a, the HDD compatibility information is recorded on the hard disk 11a by another method. You may do it.

  Next, the control unit 20 compares the HDD compatibility information stored in advance in the memory 20b with the HDD compatibility information read from the HDD 11 to determine whether the HDD compatibility information read from the HDD 11 is correct. Determine (S4). The HDD compatibility information in the memory 20b is obtained by writing the same information as the HDD compatibility information recorded on the hard disk 11a of the compatible HDD 11 in a nonvolatile memory such as a flash memory when the apparatus is manufactured. If the HDD compatibility information is correct (S4: YES), that is, if a compatible HDD 11 is attached, the control unit 20 sets 1 to the determination result variable in the memory 20b (S5), The process ends.

  On the other hand, when the model information read from the HDD 11 is incorrect (S2: NO), for example, when the user replaces the HDD 11 with a different model, or when the HDD compatibility information read from the HDD 11 is incorrect (S4: NO). For example, when the model of the HDD 11 replaced by the user is correct but the HDD 11 is not replaced with the HDD 11 in which the HDD compatibility information is not recorded, the control unit 20 sets the determination result variable to 0 (S6). Ends the power-on process. After the process is completed, the control unit 20 performs a process for confirming whether or not an operation key signal has been received.

  Next, processing when an operation key signal is received will be described. When receiving the operation key signal, the control unit 20 checks whether the process instructed by the operation key is a process of accessing the hard disk 11a (S11). If it is not a process of accessing the hard disk 11a (S11: NO), for example, if it is a process of increasing the volume of the television 32, the control unit 20 is not responsible for the contents of the instruction, irrespective of the present invention. Perform the process.

  If it is a process of accessing the hard disk 11a (S11: YES), for example, if it is a process of recording a broadcast signal on the hard disk 11a, the control unit 20 is 1 if the value of the determination result variable is 1 (S12). : YES), the process instructed by the operation key, for example, the process of recording the broadcast signal on the hard disk 11a is executed, and the reception process of the operation key signal is terminated. On the other hand, if the value of the determination result variable is 0 (S12: NO), the control unit 20 sends the error message OSD data to the OSD processing circuit 18 to display the error message on the television 32 (S14). ), The operation key signal reception process is terminated. On the screen of the television 32, an error message such as “Non-standard hard disk drive is installed and broadcast recording cannot be performed” is displayed.

  As described above, unless the model of the HDD 11 is correct and the HDD 11 is a compatible product, the process of accessing the hard disk 11a, for example, the process of recording and reproducing the broadcast signal to the hard disk 11a is disabled. The user does not replace the HDD 11, and troubles associated with the replacement of the HDD 11 can be prevented. In addition, it is described in the instruction manual of the device that when the originally installed HDD 11 is replaced with a commercially available HDD, the process of accessing the hard disk 11a cannot be performed.

  In the embodiment described above, it is determined whether or not the model of the HDD 11 is correct and the HDD 11 is compatible when the power is turned on, but at another time, for example, between S11 and S12 in FIG. The above determination may be performed. In the above embodiment, it is determined whether the model of the HDD 11 is correct and whether the HDD 11 is a compatible product. However, since the HDD compatibility information is not recorded in a commercially available HDD. Only whether the HDD 11 is a compatible product may be determined.

  Furthermore, although the case where the recording medium is the hard disk 11a of the HDD 11 has been described in the above embodiment, the present invention is also applied when the recording medium is other than the hard disk 11a, for example, when the recording medium is a nonvolatile semiconductor memory or the like. Can be applied. Furthermore, in the above embodiment, the broadcast signal is recorded only on the hard disk 11a, but the present invention can also be implemented by a recording / reproducing apparatus having a function capable of recording on an optical disk such as a DVD-RW. Furthermore, although the case where the broadcast is a television broadcast has been described in the above embodiment, the present invention can be implemented even when the broadcast is a radio broadcast.

It is a block diagram which shows the structure of a hard disk recorder. It is a flowchart which shows operation | movement of this invention.

Explanation of symbols

10 Housing 11 HDD (Hard Disk Drive)
11a Hard disk 11b Recording / reproducing unit 11c HDD control unit 20 Control unit 20a CPU
20b memory

Claims (3)

In a recording / reproducing apparatus for recording a broadcast signal of a television broadcast on a hard disk of a hard disk drive provided in a housing of the apparatus and reproducing the recorded broadcast signal,
Model information acquisition means for acquiring first model information indicating the model of the hard disk drive from the hard disk drive;
Conformity information acquisition means for acquiring first conformity information indicating that the hard disk drive recorded in advance on the hard disk is conformity;
A storage unit preliminarily storing second model information indicating a model of the hard disk drive and second compatibility information indicating that the hard disk drive is a compatible product;
When the power is turned on, the first model information acquired by the model information acquisition unit matches the second model information stored in the storage unit, and the first compatibility information acquired by the compatibility information acquisition unit Determining means for determining whether or not the second matching information stored in the storage unit matches,
And a control means for prohibiting a recording or reproducing operation with respect to the hard disk when the judgment results are not identical. In a recording / reproducing apparatus for recording a broadcast signal on a recording medium provided in a housing of the apparatus and reproducing the recorded broadcast signal,
Obtaining means for obtaining first conformity information indicating that the recording medium recorded in advance on the recording medium is a conforming product;
A storage unit preliminarily storing second conforming information indicating that the recording medium is a conforming product;
Control means for prohibiting a recording or reproducing operation on the recording medium when the first conforming information obtained by the obtaining means and the second conforming information stored in the storage unit do not match. The recording / reproducing apparatus characterized by the above-mentioned. The recording / reproducing apparatus according to claim 2.
The recording medium is a hard disk of a hard disk drive, and the first compatibility information is recorded in advance on the hard disk.

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