WO2007105338A1 - Dispositif et procede antivol pour support d'enregistrement - Google Patents

Dispositif et procede antivol pour support d'enregistrement Download PDF

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Publication number
WO2007105338A1
WO2007105338A1 PCT/JP2006/323111 JP2006323111W WO2007105338A1 WO 2007105338 A1 WO2007105338 A1 WO 2007105338A1 JP 2006323111 W JP2006323111 W JP 2006323111W WO 2007105338 A1 WO2007105338 A1 WO 2007105338A1
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WIPO (PCT)
Prior art keywords
recording medium
security
user
security function
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2006/323111
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English (en)
Japanese (ja)
Inventor
Takashi Senoo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of WO2007105338A1 publication Critical patent/WO2007105338A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark

Definitions

  • the present invention relates to a recording medium antitheft device and method suitable for use in an on-vehicle audio visual device having a security function.
  • in-vehicle audio 'visual devices (hereinafter referred to as in-vehicle AV devices) that are currently in circulation attempt to mount and operate in-vehicle AV devices that have been stolen from other vehicles as anti-theft measures.
  • the security function works, and the mechanism that does not work by disabling the operation is adopted.
  • Patent Document 1 Japanese Patent Laid-Open No. 5-14461
  • Patent Document 2 Japanese Utility Model Publication No. 3-11952
  • the present invention has been made to solve the above-described problems, and controls the security function according to the presence or absence of the user, and operates the security function only when it is necessary to prevent theft.
  • An object of the present invention is to provide an anti-theft device and method for recording media that can improve the performance.
  • An object is to provide an apparatus and method.
  • the anti-theft device for a recording medium is an anti-theft device for a recording medium that is inserted into an in-vehicle audio visual device having a security function, and discharges the recording medium based on an operation input.
  • the recording medium theft prevention method obtains a recording medium access request based on an operation input, and determines that the user is also absent from the key information power of the ignition key obtained by communication.
  • the in-vehicle audio visual device obtains the discharge request for the recording medium by operation input, and the communication is triggered by the acquisition of the discharge request.
  • the recording medium is set in a discharge-prohibited state, and the user determines from the acquired key information.
  • a step of controlling the security function so as to cancel the discharge prohibition state of the recording medium when it is determined that the user is present.
  • the in-vehicle audio visual device is configured to acquire the access request for the recording medium by an operation input, and to acquire the access request through communication.
  • the security function can be enabled only when the user is absent and the security function is necessary. When the user is present, the security function is given priority to operability. Can work. In addition to measures against theft of the recording medium, it is possible to take measures against theft of data recorded on the recording medium. In this case, security can be protected on both the hardware and software of the recording medium.
  • FIG. 1 is a block diagram showing a configuration of a recording medium antitheft device according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing the functional expansion of the internal configuration of the system controller shown in FIG.
  • FIG. 3 is a flowchart cited for explaining the flow of basic operations in the recording medium anti-theft device according to the first embodiment of the present invention.
  • FIG. 4 is a flowchart cited for explaining the operation of the application example of the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 5 is a flowchart cited for explaining the operation of the application example in the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 6 is a flowchart cited for explaining the operation of the application example of the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 7 is a flowchart cited for explaining the operation of the application example in the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 8 is a flowchart cited for explaining the operation of the application example of the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 9 is a flowchart cited for explaining the operation of the application example of the recording medium antitheft device according to the first embodiment of the present invention.
  • FIG. 10 is a block diagram showing a configuration of a recording medium theft prevention device according to the second embodiment of the present invention.
  • FIG. 11 is a block diagram showing functional expansion of the internal configuration of the system controller shown in FIG.
  • FIG. 12 is a flowchart cited for explaining the basic operation of the recording medium antitheft device according to the second embodiment of the present invention.
  • FIG. 13 is a flowchart cited for explaining the operation of the application example of the recording medium antitheft device according to the second embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of a recording medium antitheft device according to Embodiment 1 of the present invention. Here is an example applied to AV equipment.
  • the recording medium anti-theft device which is powerfully involved in the first embodiment of the present invention includes an input device 2, a display device 3, a communication device 4, and a recording medium control device 5 with a system controller 1 serving as a control center of AV equipment as a core.
  • the audio output device 6 is connected and configured as a peripheral device.
  • the system controller 1 has a built-in CPU, and also uses the built-in RAM as a work area, and sequentially reads and executes programs recorded in the ROM to control the peripheral devices 2 to 6 .
  • the system controller 1 obtains a recording medium ejection request based on an operation input, and determines that the key information force of an ignition key (hereinafter referred to as an IG key) obtained through communication is absent.
  • the recording medium is set to a discharge prohibited state, and functions as a control means of the present invention that enables the security function.
  • the acquired key information means the IG key insertion / removal state and key position (OFF, ACC, ON).
  • the input device 2 used here is an operation button of an AV device
  • the display device 2 is a liquid crystal display monitor of the AV device.
  • the communication device 4 is provided for transmitting and receiving data to and from an in-vehicle LAN (Local Are a Network) used for exchanging information with ECUs (Engine Control Units) distributed in various parts of the vehicle.
  • ECUs Engine Control Units
  • the system controller 1 to recognize the insertion / removal state of the IG key used when moving or the key position when it is inserted.
  • the recording medium control device 5 is inserted with a recording medium such as an HD (Hard Disc), a CD (Compact Disc), a DV D (Digital Versatile Disc), or an SD (Secure Digital) memory card. It is a drive that accesses data recorded on a recording medium.
  • HD Hard Disc
  • CD Compact Disc
  • DV D Digital Versatile Disc
  • SD Secure Digital
  • the audio output device 6 is provided in the sense of alerting the user by outputting a warning sound (beep sound) through a speaker (not shown) under CPU control.
  • FIG. 2 is a block diagram showing an expanded function of the internal configuration of the system controller 1 shown in FIG.
  • the discharge request acquisition unit 11 the key information acquisition unit 12, the security mode determination unit 13, and the warning sound generation unit 14
  • the timer monitoring unit 15 the Ul (User Interface) unit 16, the security information verification unit 17, and the security information storage unit 18.
  • the discharge request acquisition unit 11 acquires an HD discharge request generated when the user performs a button operation (eject operation) of the input device 2 and supplies the HD discharge request to the security mode determination unit 13.
  • the security mode determination unit 13 is also supplied with information on the insertion / removal state of the IG key or the key position via the key information acquisition unit 12.
  • Information on the IG key insertion / removal state or key position is communicated as key information via the in-vehicle LAN power communication device 4 as described above, and is set in the key information acquisition unit 12.
  • the security mode determination unit 13 detects that there is an HD discharge request via the discharge request acquisition unit 11, the security mode determination unit 13 further indicates that the key information catalog acquired via the key information acquisition unit 12 is absent.
  • the security function is enabled by setting the HD to a discharge prohibited state, and a control signal for prohibiting the roller drive of the loading mechanism is supplied to the recording medium control device 5, for example. It is also possible to start a warning sound generation process by the warning sound generator 14 and instruct the generation of a warning sound via the audio output device 6.
  • the security mode determination unit 13 also displays a message for prompting the display device 3 to input security information via the UI unit 16 when it is determined that the user has no key information power. It also has the function of fetching security information such as ID that is input by button operation by the user operating the input device 2 and instructing the security information collation unit 17 to collate security information.
  • the security information verification unit 17 includes security information such as an ID acquired via the UI unit 16 and unique security information set for each in-vehicle AV device, in this case the ID stored in the security information storage unit 18 The security information is compared and collated, and the result of this collation is supplied to the security mode determination unit 13. Depending on the result of verification output by the security information verification unit 17, the security mode determination unit 13 can cancel the HD discharge prohibition state and disable the security function.
  • the security information verification unit 17 restarts the UI unit 16 and tries to display the message by the display device 3 and the verification by capturing the security information of the input device 2 a predetermined number of times. The result is supplied to the security mode determination unit 13.
  • the security mode determination unit 13 continues the HD discharge prohibition state and enables the security function.
  • the timer monitoring unit 15 sets a predetermined value in the built-in timer when the key position detection unit 12 detects the removal of the IG key, and the key information acquisition unit 12 acquires the key information.
  • the timer is started, the timer is monitored, and when a time-over is detected, the security mode determination unit 13 is activated.
  • the security mode determination unit 13 can delay the setting of the HD discharge prohibition state until the count for the set time is completed, and can invalidate the execution of the security function during this period. This is a measure that takes into account that the user stays in the car for a few seconds even after the IG key is removed.
  • the UI unit 16 also has a function of displaying a security state change setting screen on the display device 3 and prompting an instruction to enable or disable the security function.
  • the security mode determination unit 13 sets the HD in a discharge prohibited state in accordance with the instruction input regarding the validity / invalidity of the security function that is input and taken in by the user operating the input device 2 via the UI unit 16. Set to enable the security function, or cancel the HD discharge prohibition status and disable the security function.
  • this function is a measure taken by the user to arbitrarily control the security function.
  • FIG. 3 is a flowchart quoted for explaining the basic operation flow of the recording medium antitheft device according to the first embodiment of the present invention.
  • FIGS. 1 and 2 The operation of the recording medium antitheft device shown in FIGS. 1 and 2 will be described in detail below with reference to the flowchart shown in FIG.
  • the system controller 1 first determines whether or not there is an HD discharge request coming via the input device 2 by the discharge request receiving unit 11 (step ST301). Information regarding the presence or absence of an HD ejection request is output to the security mode determination unit 13. The system controller 1 further outputs to the security mode determination unit 13 key information indicating the IG key insertion / removal state or key position acquired by the key information acquisition unit 12.
  • the security mode determination unit 13 determines that the user has a request for discharging HD (step ST301 “YES”), for example, the IG key is inserted and the ACC power supply is enabled. (Step ST302 “YES”), it is determined that the user is present, the security function is disabled, and the HD discharge prohibition state is canceled (step ST311). Then, the security mode determination unit 13 outputs an HD discharge request to the recording medium control device 5 (step ST312). As a result, the recording medium control device 5 can discharge the inserted HD (step ST313).
  • the security mode determination unit 13 determines that the user is absent based on the key information, the security mode determination unit 13 further determines whether the security function is currently enabled and the HD discharge prohibition state is set. (Step ST303).
  • step ST303 when the system is in the HD output prohibition state (step ST303 "YES"), the security mode determination unit 13 returns to the process in step ST301, while the system is not in the HD discharge prohibition state. If (Step ST303 "NO") The utility information matching unit 17 is activated.
  • the security information collation unit 17 first clears the built-in counter (CNT) assigned to count the number of erroneous IDs of the user (step ST304), and prompts the display device 3 to the user.
  • the UI unit 16 is activated to display a message (ID input request) that prompts ID input to release the HD prohibited state.
  • the UI unit 16 displays a message for prompting ID input on the display device 3 (step ST305), and waits for the arrival of an ID input by the user operating the input device 2 (step ST306).
  • the security information matching unit 17 is specific to the ID output via the UI unit 16 and the vehicle or AV device recorded in the security information storage unit 18. Compare with ID of (step ST307).
  • the security information collation unit 17 activates the security mode determination unit 13, and the security mode determination unit 13 outputs the HD to the recording medium control device 5.
  • the request is output (step ST312).
  • the recording medium control device 5 can discharge the inserted HD (step ST313).
  • step ST307 determines whether the IDs do not match (step ST307 “N 0”), the security information matching unit 17 updates the built-in counter (CNT) by 1 (step S T308).
  • the security information collation unit 17 sets the security mode determination unit 13 to In other words, the security mode determination unit 13 outputs, for example, a roller drive prohibition signal to the recording medium control device 5 to set the HD discharge prohibition state (step S3). ST310), the process returns to step ST301, that is, HD is prohibited from being discharged until the presence of the user can be confirmed.
  • FIG. 4 shows the operation of the application example of the first embodiment of the present invention in which when the HD discharge is prohibited according to the flow of the basic operation shown in FIG. It is the flowchart quoted in order to explain.
  • Step ST410 the system controller 1 activates the sound output device 6 to request the generation of a warning sound (Step ST411), and the sound output device 6 continues to output a warning sound for 1 minute, for example.
  • Step ST412 the audio output is stopped (step ST413).
  • step ST401 to step ST410 when the user power is also requested to discharge HD and the acquired key information power is determined to be absent, the HD is set in a discharge prohibited state (step ST401 to step ST410). ), When it is determined that the user is present, the process of releasing the HD discharge prohibition state and controlling the security function (step ST402, step ST414 to step ST416) is the basic operation described with reference to the flowchart of FIG. It follows the flow of this.
  • Fig. 5 shows the basic operation flow shown in Fig. 3. Furthermore, even if the IG key is removed, the system recognizes that the user is in the vehicle for a predetermined time (several tens of seconds), and executes the security function. 6 is a flowchart cited for explaining the operation of the application example of the first embodiment of the present invention, which is convenient by delaying the delay time.
  • the system controller 1 first detects insertion / removal of the IG key (step ST5001), and when the IG key is removed (step ST501 “YES”), the timer monitoring unit 15 receives a predetermined time. The corresponding initial value (here 30 seconds) is set (step ST502). Thereafter, when an HD discharge request is received and it is determined that the user is absent from the incoming key information (step ST503 "NO"), the timer monitoring unit 15 is activated to start the timer and detect the timeout. (Step ST505) Disables the security function and delays the processing for setting the HD discharge prohibited state until it is done.
  • step ST506 when it is determined that the user is absent, the HD is set to the discharge prohibited state, and when it is determined that the user is present, the user is prompted to enter an ID and the HD discharge prohibited state is set.
  • the process of releasing and controlling the security function (step ST506 to step ST513, and step ST504, step ST514 to step ST516) follows the basic operation flow described using the flowchart of FIG.
  • FIGS. 6 and 7 show that the security function is enabled for the user by adding the function of outputting the warning sound described using the flowchart shown in FIG. 4 to the application example shown in FIG. This is an application example of the first embodiment shown in the meaning of announcing.
  • FIG. 8 and FIG. 9 provide convenience to the user by enabling the user to control the ONZOFF setting of the security function with respect to the basic operation shown in FIG. 3, and further improve operability. This is an application example of the first embodiment of the present invention shown in this sense.
  • the system controller 1 first determines whether or not there is a security setting change request generated when the user operates the input device 2 via the UI unit 16 (step ST 801). Specifically, the UI unit 16 displays a utility change setting screen on the display device 3 and prompts the user to input an instruction whether or not to enable the security function. Wait for the arrival.
  • the system controller 1 is input by the user operating the input device 2, and the UI unit
  • step ST801 “NO” If it is determined that there is no security setting change request (step ST801 “NO”) based on the instruction input regarding whether or not to enable the security function, which is taken in by step 16, the processing of step ST809 shown in FIG. 9 is performed. move on.
  • step ST801 when it is determined that “there is a security setting change request” (step ST801 “YES”), it is further determined whether or not the user is absent based on the key information acquired by the key information acquisition unit 12 (step ST802).
  • step ST802 If it is determined that the user is present (step ST802! If it is determined that the user is present (step ST802!
  • the system controller 1 instructs the display device 3 to display the current security state (whether the security function is effective or not) via the UI unit 16 (step ST803).
  • step ST804 the system controller 1 captures a setting end request input by operating the input device 2 after the user confirms the current security state displayed on the display device 3 via the UI unit 16. If it is determined that “setting end request is present” (step ST804 “Y ES”), the process proceeds to step ST809 in FIG. 9 described later, and if “setting end request is not present” is determined (step ST804). “NO”), and further, it is determined whether or not there is a security setting change request (step ST805). [0037] If it is determined in step ST805 that "there is a security setting change request" (step ST805 "YES”), the security mode determination unit 13 refers to, for example, a built-in flag.
  • step ST806 It is determined whether the security function is currently turned on (step ST806). If it is turned on (step ST806 "YES"), the built-in flag is turned off (step ST808). If it is in the OFF state, change the setting to the security function ON state (step ST807), and return to the processing in step ST803.
  • step ST801 determines whether "no security setting change request” is determined (ST801 "NO"), and in step ST804, it is determined that "no setting end request”. In both cases (step ST804 “YES”), the security mode determination unit 13 waits for acquisition of an HD discharge request generated by the user operating the input device 2 via the discharge request acquisition unit 11 (FIG. 9 steps ST809).
  • the security mode determination unit 13 refers to the built-in flag to check whether the security function is currently on. Judgment (step ST810), if it is OFF (step ST810 "NO”), cancel the HD discharge prohibition state to disable the security function (step ST820), and if it is ON (step ST820) In step ST810 “YES”), the key information acquired by the key information acquisition unit 12 is further determined (step ST811).
  • step ST812 to step ST819, and step ST810, step ST820 to step ST822) follows the flow of the basic operation described using the flowchart of FIG.
  • the security function is set only when the security function is required to set the recording medium such as HD to the discharge prohibited state when the user is absent. Can be made effective, and this makes it possible to prioritize operability when the user is present.
  • the same when enabling the security function by setting the recording medium to the ejection-prohibited state, the same Sometimes it is possible to alert the user by outputting a warning sound, and also to force the system to recognize that the user is present for a certain period of time even if the IG key is removed. These can be delayed, which can provide convenience to the user.
  • the operability can be further improved by providing a UI environment that allows the user to manually control the ONZOFF setting of the security function.
  • FIG. 10 is a block diagram showing a configuration of a recording medium antitheft device according to Embodiment 2 of the present invention.
  • Embodiment 1 shown in FIG. 1 The difference from Embodiment 1 shown in FIG. 1 is that a PC is connected to the in-vehicle AV device via a special connection interface, and the data recorded on the recording medium inserted in the recording medium control device 5 is collected. is there.
  • the in-vehicle AV equipment is centered on the system controller 1 serving as the control center of the AV equipment, with the input device 2, display device 3, communication device 4, recording medium control device 5, audio output.
  • the device 6 is connected and configured as a peripheral device, an access request is input from the input device 1 in place of the discharge request shown in the first embodiment, and is taken in.
  • FIG. 11 is a block diagram showing an expanded function of the internal configuration of the system controller 1 shown in FIG.
  • the access request acquisition unit 19 the key information acquisition unit 12, the security mode determination unit 13, and the warning sound generation unit 14
  • a timer monitoring unit 15 a UI unit 16, a security information matching unit 17, and a security information storage unit 18.
  • the access request acquisition unit 19 acquires an HD access request generated when the user performs a button operation (RZW operation) of the input device 2, and supplies the HD access request to the security mode determination unit 13.
  • the security mode determination unit 13 is supplied with key information related to the IG key insertion / removal state or key position via the key information acquisition unit 12.
  • Information regarding the IG key insertion / removal status or key position is communicated as key information via the in-vehicle LAN power communication device 4 and set in the key information acquisition unit 12 as described above.
  • the security mode determination unit 13 receives the HD access request via the access request acquisition unit 19. When it is detected that there is a request, the key information acquired via the key information acquisition unit 12 is determined to be absent, and the security function is enabled by setting the HD to an access prohibited state. The control signal for prohibiting access is supplied to the recording medium control device 5. It is also possible to start a warning sound generation process by the warning sound generator 14 and instruct the generation of a warning sound via the voice output device 6.
  • the security mode determination unit 13 also displays a message for prompting the display device 3 to input security information via the UI unit 16 when it is determined that the user has no key information power. It also has the function of fetching security information such as ID that is input by button operation by the user operating the input device 2 and instructing the security information collation unit 17 to collate security information.
  • the security information verification unit 17 includes security information such as an ID acquired via the UI unit 16 and unique security information set for each in-vehicle AV device, in this case the ID stored in the security information storage unit 18 The security information is compared and collated, and the result of this collation is supplied to the security mode determination unit 13. Depending on the result of verification output by the security information verification unit 17, the security mode determination unit 13 can cancel the HD access prohibition state and disable the security function.
  • the security information collation unit 17 restarts the UI unit 16 and tries collation by displaying the message by the display device 3 and capturing the security information of the input device 2 a predetermined number of times.
  • the result is supplied to the security mode determination unit 13.
  • the security mode determination unit 13 continues the HD access prohibition state and enables the security function.
  • FIG. 12 is a flowchart cited for explaining the basic operation of the recording medium antitheft device according to the second embodiment of the present invention.
  • the system controller 1 first determines whether or not there is an HD access request, in this case, data READ, which arrives via the input device 2 by the access request receiving unit 19. (Step ST121). Information on whether or not there is an HD access request is output to the security mode determination unit 13. The system controller 1 further outputs to the security mode determination unit 13 key information indicating the IG key insertion / removal state or key position acquired by the key information acquisition unit 12.
  • the security mode determination unit 13 determines that the user is present. Judgment is made and the security function is disabled, and the HD access prohibition state is canceled (step ST131). Then, the security mode determination unit 13 outputs a signal permitting an access request to the recording medium control device 5 (step ST132: data READ permission), and permits data transmission to the PC 10 (step ST133).
  • step ST122 determines whether or not HD access is prohibited.
  • step ST123 determines in step ST123 that HD access is prohibited (step ST123 "YES"), the process returns to step ST121, while the HD access is disabled. If it is determined that the security information has not been entered (step ST123 "NO"), the security information verification unit 17 is activated. At this time, the security information collation unit 17 first clears the built-in counter (CNT) assigned to count the number of erroneous ID entries of the user (step ST124), and displays the HD 3 to the user to the display device 3. The UI unit 16 is activated to display a message (ID input request) prompting ID input to release the access prohibition state. As a result, the UI unit 16 displays a message for prompting ID input on the display device 3 (step ST125), and waits for arrival of an ID input by the user operating the input device 2 (step ST126).
  • CNT built-in counter
  • the security information matching unit 17 when the user inputs an ID, the security information matching unit 17 outputs the ID output via the UI unit 16 and the ID unique to the AV device recorded in the security information storage unit 18. Are compared (step ST127). As a result of the ID comparison and collation, if they match (step ST127 “YES”), the security information collation unit 17 causes the security mode determination unit 13 to Upon activation, the security mode determination unit 13 permits the HD access request (data READ) to the recording medium control device 5 (step ST132). As a result, the PC 10 can read the data recorded in the inserted HD (step ST133).
  • step ST127 determines whether the IDs do not match (step ST1 27 “NO”)
  • the security information collation unit 17 updates the built-in counter (CNT) by 1 (step ST128).
  • the security information verification unit 17 uses the security mode determination unit 13 In other words, the security mode determination unit 13 outputs an access prohibition signal to the recording medium control device 5 to set the HD access prohibition state (step ST130).
  • FIG. 13 illustrates the operation of the application example of the second embodiment in which the user is alerted by simultaneously sounding a warning sound when HD access is prohibited according to the basic operation flow shown in FIG. It is the flowchart quoted in order to do.
  • step ST150 the system controller 1 activates the audio output device 6 to generate a warning sound.
  • the audio output device 6 is requested to continue outputting the warning sound for 1 minute (step ST152) and then stop the audio output (step ST153).
  • step ST141 to step ST150 When there is an access request (data READ) and it is determined from the acquired key information that the user is absent, the HD is set to an access prohibited state (step ST141 to step ST150), and the user When it is determined that the user is present.
  • the processing to release the HD access prohibition state and control the security function (step ST142, step ST154 to step ST1 57) follows the flow of the basic operation described in FIG. .
  • the second embodiment of the present invention it is possible to take measures against theft of data recorded on a recording medium such as an HD as well as measures against theft of the recording medium.
  • Security protection is possible for both the hardware and software of the recording medium.
  • a recording medium such as HD is set to the access prohibited state and the security function is enabled, The user can be alerted by outputting a warning sound.
  • the recording medium such as HD is set in a discharge prohibited state, and it is determined that the user is present.
  • the security function so as to cancel the recording medium ejection prohibition state, it is important to improve the operability when the user is present.
  • the recording medium such as HD is set to the access prohibited state, and when it is determined that the user is present, the access prohibition state of the recording medium is canceled.
  • the security function measures to prevent theft of data recorded on the recording medium are also taken, and security protection for both the hardware and software of the recording medium is realized.
  • an optical disk such as a CD or DVD, an SD power card, etc.
  • the present invention may be applied to AV equipment using the semiconductor memory as a recording medium.
  • an SD card since the recording medium control device 5 does not have a loading mechanism, in order to enable the security function, for example, a mechanical means for locking the SD pop-up mechanism is required. Become.
  • the recording medium anti-theft device and method provided with the security function for preventing the theft of both the hardware and software of the recording medium according to the present invention is applied to an in-vehicle audio / visual device or the like. Suitable for use!

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Lorsqu'il est déterminé par l'acquisition d'une d'information clé que l'utilisateur est absent, un contrôleur système (1 (un moyen de commande)) place un support d'enregistrement, tel un disque dur, dans un état de déchargement interdit. Lorsqu'il est déterminé que l'utilisateur est présent, le contrôleur système commande une fonction de sécurité afin de supprimer l'état de déchargement interdit du support d'enregistrement. De plus, lorsqu'il est déterminé que l'utilisateur est absent, le contrôleur système place le support d'enregistrement tel qu'un disque dur dans un état de déchargement interdit. Lorsqu'il est déterminé que l'utilisateur est présent, le contrôleur système commande la fonction de sécurité afin de supprimer l'état de déchargement interdit du support d'enregistrement.
PCT/JP2006/323111 2006-03-13 2006-11-20 Dispositif et procede antivol pour support d'enregistrement Ceased WO2007105338A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006068048A JP2009140522A (ja) 2006-03-13 2006-03-13 記録媒体の盗難防止装置および方法
JP2006-068048 2006-03-13

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WO2007105338A1 true WO2007105338A1 (fr) 2007-09-20

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CN113435130B (zh) * 2021-08-27 2021-11-19 中兴通讯股份有限公司 一种设备控制方法及装置、电子设备及存储介质

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JPH05144161A (ja) * 1991-11-20 1993-06-11 Fujitsu Ten Ltd オーデイオプレーヤ
JPH0737320A (ja) * 1993-07-19 1995-02-07 Nakamichi Corp プレーヤの記録媒体イジェクト禁止装置
JP2552978Y2 (ja) * 1992-01-31 1997-11-05 ミツミ電機株式会社 記録及び／又は再生装置
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JP3085946U (ja) * 2001-11-12 2002-05-31 船井電機株式会社 ディスク再生装置
WO2005069291A1 (fr) * 2004-01-20 2005-07-28 Matsushita Electric Industrial Co., Ltd. Dispositif d'enregistrement/reproduction de support amovible, procede de commande d'ejection de support d'un dispositif d'enregistrement/reproduction de support amovible et procede de commande d'ejection de support amovible d'un dispositif de traitement d'informations

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JPH0311952U (fr) * 1989-06-21 1991-02-06
JPH0394660U (fr) * 1990-01-17 1991-09-26
JPH05144161A (ja) * 1991-11-20 1993-06-11 Fujitsu Ten Ltd オーデイオプレーヤ
JP2552978Y2 (ja) * 1992-01-31 1997-11-05 ミツミ電機株式会社 記録及び／又は再生装置
JPH0737320A (ja) * 1993-07-19 1995-02-07 Nakamichi Corp プレーヤの記録媒体イジェクト禁止装置
JP3052675B2 (ja) * 1993-07-22 2000-06-19 松下電器産業株式会社 光導波路およびその製造方法
JP2002012087A (ja) * 2000-06-28 2002-01-15 Mitsubishi Electric Corp 移動体情報機器
JP3085946U (ja) * 2001-11-12 2002-05-31 船井電機株式会社 ディスク再生装置
WO2005069291A1 (fr) * 2004-01-20 2005-07-28 Matsushita Electric Industrial Co., Ltd. Dispositif d'enregistrement/reproduction de support amovible, procede de commande d'ejection de support d'un dispositif d'enregistrement/reproduction de support amovible et procede de commande d'ejection de support amovible d'un dispositif de traitement d'informations

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