JP4510365B2 - Wireless key authentication method and wireless key using the same - Google Patents

Wireless key authentication method and wireless key using the same Download PDF

Info

Publication number
JP4510365B2
JP4510365B2 JP2002309946A JP2002309946A JP4510365B2 JP 4510365 B2 JP4510365 B2 JP 4510365B2 JP 2002309946 A JP2002309946 A JP 2002309946A JP 2002309946 A JP2002309946 A JP 2002309946A JP 4510365 B2 JP4510365 B2 JP 4510365B2
Authority
JP
Japan
Prior art keywords
wireless key
main body
mode
authentication
body side
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.)
Active
Application number
JP2002309946A
Other languages
Japanese (ja)
Other versions
JP2004143806A (en
Inventor
菊一 櫻井
義宏 池内
田中  透
豊喜 笹倉
政利 落合
Original Assignee
シチズンホールディングス株式会社
スーパーウエーブ株式会社
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 シチズンホールディングス株式会社, スーパーウエーブ株式会社 filed Critical シチズンホールディングス株式会社
Priority to JP2002309946A priority Critical patent/JP4510365B2/en
Publication of JP2004143806A publication Critical patent/JP2004143806A/en
Application granted granted Critical
Publication of JP4510365B2 publication Critical patent/JP4510365B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wireless key authentication method and a wireless key using the wireless key authentication method, and more particularly to a wireless key authentication method and a wireless key using the wireless key authentication method for reducing power consumption of the wireless key.
[0002]
[Prior art]
In recent years, security systems have been put into practical use that wirelessly control the unlocking and locking of vehicle doors and the operation locks of electronic devices such as personal computers while taking security into consideration.
[0003]
As one form of such a security system, in order to prevent the mobile phone from being stolen, a user of the mobile phone possesses an identification signal transmitter in the form of a card, and the mobile phone and the identification signal transmitter are previously connected. There is a mobile phone that can be used when a predetermined identification code is communicated with each other and the identification code can be confirmed by both parties (see Patent Document 1).
[0004]
[Patent Document 1]
Further, as a system for remotely locking and unlocking a key part of a vehicle in a non-contact state, a predetermined identification code and predetermined encryption information are stored in a vehicle side device, A predetermined identification code is transmitted to the device, encrypted information from the portable device held by the vehicle occupant is received, and compared with the stored encrypted information. A security system has been proposed in which locking and unlocking of a key part of a vehicle is executed when comparison of encryption information matches (Patent Document 2).
[0005]
[Patent Document 2]
In a conventional example of such a wireless bidirectional communication system, a signal generated from a portable device (hereinafter referred to as a wireless key) is used in a vehicle or a device mounted on the main body side such as an electronic device. It was the structure which performs the operation | movement to detect continuously.
[0006]
That is, in the conventional system, in order to detect the timing at which signals can be exchanged between the vehicle or the electronic device on the main body side and the wireless key, the inquiry signal is always transmitted on both the main body side and the wireless key side. It was necessary.
[0007]
[Problems to be solved by the invention]
Here, the wireless key side device is inevitably required to be compact and lightweight for portability. For this reason, the wireless key side uses a battery such as a button battery as a power source.
[0008]
However, in the conventional apparatus, as described above, it is necessary that the wireless key side always transmits an inquiry signal corresponding to the main body side. As a result, the battery consumption of the wireless key becomes large, and there is a disadvantage that the frequency of battery replacement increases.
[0009]
At most, the battery replacement frequency should be less than once a year.
[0010]
Accordingly, it is an object of the present invention to provide a wireless key authentication method and a wireless key using the same, which reduce battery consumption particularly in the wireless key.
[0011]
[Means for Solving the Problems]
A wireless key authentication method according to the present invention that achieves the above-mentioned object is, as a first form, an authentication method in a security system in which a wireless key and a device on the main body side are connected wirelessly. The authentication unit and the application mode are sequentially set, and the main body side device is sequentially set to the standby mode, the authentication mode, and the application mode. In the search mode, the main body is encoded with a code having a first length from the wireless key. When the search signal is transmitted to the side device and the search signal is received by the main body side device, a response signal is transmitted to the wireless key, and the wireless key receives the response signal from the main body side device. A code having a second length longer than the search signal having an authentication ID of the wireless key To the main body side device, and the main body side device compares the authentication ID of the wireless key in the code of the second length with the authentication ID held in advance, and shifts to the authentication mode when they match. The authentication ID of the main body side device is sent to the wireless key. The wireless key receives the authentication ID of the main body side device, compares the authentication ID held in advance, and matches the authentication ID. It is characterized by shifting to the mode.
[0012]
Furthermore, a wireless key authentication method according to the present invention that achieves the above-described problem is, as a second form, in the first form, the transmission of the code having the second length from the wireless key to the main body side device. And comparing the authentication ID in the code of the second length with the authentication ID held in advance in the main body side device and transmitting the authentication ID of the main body side device to the wireless key at least twice. The above is repeated.
[0013]
The wireless key authentication method according to the present invention that achieves the above-described object is a third mode in which the first length code and the second length code are used in the first or second mode. Is an M-sequence signal.
[0014]
A wireless key according to the present invention that achieves the above-described object is a wireless key that authenticates with a main body side device and executes a predetermined process in the main body side device, and is supplied with power by a button battery, and is an M series. A signal generation circuit, a transmission / reception amplifier, a memory for storing a predetermined authentication ID, and a control means for controlling the generation of the M-sequence signal for the M-sequence signal generation circuit. Mode, authentication mode, and application mode are sequentially set, and in the search mode, the first length M-sequence signal generated from the M-sequence signal generation circuit is transmitted as a search signal to the apparatus on the main body side. To the authentication mode when receiving a response signal from the main device, and a second length longer than the search signal having the authentication ID of the wireless key M-sequence signal is sent to the main body side device, and the main body side device compares the authentication ID of the wireless key in the code of the second length with the authentication ID held in advance, and when they match, The authentication ID of the apparatus on the main body side that is sent when shifting to the authentication mode is received, the authentication ID held in advance is compared, and if they match, control is performed to shift to the application mode.
[0015]
Furthermore, the wireless key according to the present invention that achieves the above-mentioned object has a vibration sensor as a second aspect of the wireless key according to the first aspect of the wireless key, and receives a trigger signal from the motion sensor. Sometimes it is switched from the sleep state to the active state.
[0016]
The features of the present invention will become more apparent from the embodiments described below with reference to the drawings.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0018]
FIG. 1 is a diagram illustrating a vehicle security system to which a wireless key authentication method of the present invention is applied. FIG. 2 is a block diagram showing a conceptual configuration of a device 30 that is mounted on the vehicle 3 side and transmits / receives a signal to / from the wireless key 1. The shape of the wireless key 1 is not limited in any way as long as it is convenient for carrying. It also has a key shape, a card shape, or a clock function, and can be integrated with a wristwatch.
[0019]
In FIG. 1, two-way communication is performed between a wireless key 1 having the characteristics of the present invention possessed by a user 2 and a control device 30 mounted on a vehicle 3 that is a security target.
[0020]
The control device 30 receives a signal from the wireless key 1 by the transmission / reception means 301 through the antenna 31 and transmits a predetermined response signal. The computing unit 302 performs authentication by comparing the authentication code sent from the wireless key 1 with the code stored in the storage unit 303. When the authentication is confirmed, a permission signal is sent to the control means 304 such as a switch, and in the example of FIG. 1, the physical control of the application / unlocking of the door key of the vehicle is performed. The controlled object 32 can be variously changed according to the application object of the present invention.
[0021]
FIG. 3 is a block diagram showing a configuration example of the wireless key 1 having the features of the present invention. The components of the wireless key 1 are supplied with power using a button battery or the like as a battery source.
[0022]
When the ON / OFF switch 100 becomes a main switch and the ON / OFF switch 100 is turned on by an operator, power is supplied from the battery source 101 to each part of the constituent elements via the ON / OFF switch 100.
[0023]
When power is supplied, the control unit 102 monitors the activation of the trigger switch 103 according to the security system, and performs control to shift from the sleep state to the active state. When a certain stationary state continues, it shifts to a sleep state. As described above, it is possible to reduce the consumption of the battery source 101 by having the sleep state. The trigger switch 103 emits a trigger signal in accordance with the movement of the person holding the wireless key 1. For example, it can be configured by a vibration sensor or the like.
[0024]
Therefore, the trigger switch 103 is not necessary when the present invention is applied to a security system that always requires the wireless key 1 to be in an active state.
[0025]
In any case, the present invention reduces the power consumption when the wireless key 1 is in the active state, and realizes maintaining the life of the battery source 101 for a long time.
[0026]
FIG. 4 shows the relationship between the wireless key 1 and the main body (base) side device, for example, the main body (base) side device and the control device mounted on the vehicle 3 when applied to the vehicle security system of FIG. It is a figure explaining signal transmission / reception. 4 (1) shows the transmission (TX) and reception (RX) signals on the wireless key 1 side, and FIG. 4 (2) shows the transmission (TX) and reception (RX) of the main body (base) side device. ) Signal.
[0027]
FIG. 5 is a processing flow between the wireless key 1 and the main body (base) side device. The operation of the embodiment of the wireless key 1 of FIG. 3 will be described with reference to these drawings.
[0028]
In the present invention, as shown in FIG. 5, the active state of the wireless key 1 has a search mode, an authentication mode, and an application mode. The main body (base) side device, on the other hand, has a standby reception mode, an authentication mode, and Has app mode.
[0029]
In FIG. 3, a start signal generator 104 generates an authentication start signal (START SIG). In the active state of the wireless key 1, until the application mode with the main body (base) side apparatus is entered, A pulse signal is generated at predetermined intervals, for example, every second.
[0030]
On the other hand, switching between the search mode, the authentication mode, and the application mode is controlled by the control unit 102. First, in the search mode, control is performed so that the changeover switch 105 is switched to the (1) side.
[0031]
A clock signal corresponding to the clock frequency of the M-sequence signal is generated from the clock generator 106. Therefore, the M-sequence signal generator 107 inputs the authentication start signal (START SIG) to the enable signal terminal EN and the clock signal from the clock generator 106 to the clock terminal CK.
[0032]
In the M-sequence signal generator 107, the authentication start signal is input to the enable signal terminal EN to be in an active state, and the spread signal is synchronized with the clock signal during a predetermined pulse width in the search mode, for example, a pulse width of 31 ms as an example. A plurality of M-sequence signals obtained by multiplying are generated. Then, one specific M-sequence signal assigned to the wireless key 1 among the plurality of M-sequence signals is output.
[0033]
One specific M-sequence signal from the M-sequence signal generator 107 passes through the OR gate 108 and is input to the transmission amplifier 109. The one M-sequence signal is subjected to carrier frequency modulation by the transmission amplifier 109, amplified, and transmitted as a search signal pulse from the antenna 111 to the main body (base) side device via the duplexer 110.
[0034]
Here, in FIG. 6 showing the time relationship of signals, as an example, an M-sequence signal as a search signal pulse is output corresponding to the one-second interval of the authentication start signal (START SIG) (FIG. 6 (1)). The pulse width is 31 ms as described above.
[0035]
Here, returning to FIG. 5, in the search mode, as described above, the search signal pulse is transmitted from the wireless key 1 at intervals of 1 second, but the distance between the wireless key 1 and the main unit (base) side device is predetermined. When it is farther than this (out of service area), the main body (base) side device cannot receive the search signal pulse from the wireless key 1 in the standby mode.
[0036]
Next, when the distance between the wireless key 1 and the main body (base) side device is within a predetermined range (range), the main body (base) side device can receive the search signal pulse (FIG. 4: m1, FIG. 5: P1). .
[0037]
When the main body (base) side device receives the search signal pulse, the arithmetic unit 302 shown in FIG. 2 decodes the M-sequence signal and recognizes that the search signal is from the wireless key 1 belonging to the corresponding security system. . Similarly, an M-sequence signal is generated and transmitted to the wireless key 1.
[0038]
When receiving the response signal from the main body (base) side device, the wireless key 1 shifts to the authentication mode (FIG. 4: m2). If the wireless key 1 cannot receive a response signal, the search signal pulse transmission is repeated in the search mode.
[0039]
When the mode is shifted to the authentication mode, the wireless key 1 uses the M-sequence signal corresponding to the search signal as a header and transmits the M-sequence signal with an authentication ID added to the header (FIG. 4: m3, FIG. 5: P2, Y). ).
[0040]
When the main body (base) side apparatus receives the authentication ID from the wireless key 1, the main body (base) side apparatus sends the authentication ID of the main body (base) side apparatus to the wireless key 1 as a response signal (FIG. 4: m4, FIG. 5: P3, Y ).
[0041]
Such processing will be described with reference to FIG. In FIG. 3, when a response signal that is an M-sequence signal from the apparatus on the main body (base) side is received on the wireless key 1 side, it is first demodulated by the reception amplifier 112 and sent to the control unit 102.
[0042]
The control unit 102 reads the ID code corresponding to the main body (base) side device written in the memory 113, and determines a match with the received response signal.
[0043]
When it is determined that they match, the control unit 102 switches the changeover switch 105 to the (2) side. Accordingly, the timing pulse from the start signal pulse generator 4 is input to the enable terminal EN and the clock signal from the clock generator 106 is input to the clock terminal CK to the second M-sequence signal generator 114.
[0044]
In the second M-sequence signal generator 114, a signal longer than the M-sequence signal in the previous search mode, as shown in FIG. 6 (3) as an embodiment, and an authentication added to the header. An M-sequence signal having a time width of 100 ms composed of the M-sequence signal generated by the ID is generated.
[0045]
The M-sequence signal generated by the second M-sequence signal generator 114 is the same as that in the search mode described above, passes through the OR gate 108 and the transmission amplifier 109, and is sent to the main body (base) side device. .
[0046]
When the M-sequence signal including the authentication ID is received, the main body (base) device demodulates the M-sequence signal and determines whether or not the authentication ID matches that registered in the main (base) device. Perform (FIG. 5: P3). If the authentication IDs do not match, the standby mode is returned again.
[0047]
If the authentication IDs match, the authentication ID of the main body (base) side device is transmitted to the wireless key 1 side (FIG. 4: m4). When this authentication ID is received from the main body (base) side device, the wireless key 1 side performs the same processing as the processing described above (FIG. 5, P2), and sends the authentication ID to the main body (base) device side ( FIG. 4: m3, FIG. 5: P4).
[0048]
Thus, in order to increase security, as an example, the transmission / reception of the authentication ID is repeated twice between the wireless key 1 and the main body (base) side device (FIG. 5: P3-P4, P5-P6).
[0049]
When the wireless key 1 can confirm the authentication ID sent twice from the main body (base) side device, the wireless key 1 shifts to the application mode and sends the application ID to the main body (base) side device (FIG. 4: m5). FIG. 5: P6, Y).
[0050]
When the reception of the application ID is confirmed by the main body (base) side device, a confirmation signal is returned to the wireless key 1 (FIG. 4: m6, FIG. 5: P7, Y). When the wireless key 1 confirms the response from the main body (base) device side, it further sends the application ID to the main body (base) side device (FIG. 5: P8, Y).
[0051]
The main body (base) side device receives the application ID from the wireless key 1 twice in succession (FIG. 5: P9, Y). Application execution is started (FIG. 5: P10).
[0052]
The contents of application execution differ depending on the contents of the security system. In the case of vehicle security, the locking and unlocking of the vehicle door can be controlled, and in the security system for the operation lock of the electronic device or the like, the operation lock of the electronic device or the like can be controlled.
[0053]
Here, as described above, in the present invention, a short M-sequence signal is used in the search mode for authentication between the wireless key 1 and the main body (base) side device, and the authentication mode and the application mode are used. After entering, an M-sequence signal for authentication longer than that is used. As shown in FIG. 6, the short M-sequence signal in the search mode is 31 ms, and the M-sequence signal after entering the authentication mode and the application mode is 100 ms. Therefore, the power consumption in the search mode is about 1/3 that in the authentication mode and the application mode.
[0054]
In the wireless key 1, functional units with large power consumption are the transmission / reception amplifiers 109 and 112. In the search mode, the power consumption can be reduced by setting a short M-sequence signal period.
[0055]
Even in the application mode, it is necessary to periodically perform authentication confirmation between the wireless key 1 and the main body (base) device, but the period can be made longer than in the search mode and the authentication mode. . This also makes it possible to reduce power consumption.
[0056]
Here, in the configuration example of the wireless key 1 shown in FIG. 3, in consideration of the convenience of the user of the wireless key 1, it has a display unit 115 such as a liquid crystal panel and follows a clock function controlled by the control unit 102. It is also possible to display the time. In this case, it is usually preferable to display a bar graph or the like indicating the radio field intensity between the wireless key 1 (key module) and the main body device 30 (base module) side that transmits and receives signals.
[0057]
As shown above, the wireless key is provided with a display that shows the radio wave intensity, so that the radio wave intensity can always be ascertained and confirmed compared to a conventional configuration that does not have a radio wave intensity display, preventing authentication from being interrupted unintentionally. There is an effect that can be done.
[0058]
On the other hand, when the use on the base module side is restricted, in addition to the above-described various displays, it can be configured to display on the display unit 115 that the use restriction is imposed on the base module side. As the display, for example, a key mark is displayed symbolically. The wireless key 1 (key module) stores the time when the use restriction is executed, and the user presses an operation button associated with a clock function (not shown) provided on the wireless key 1. It is also possible to display the use restriction execution time.
[0059]
As shown above, the wireless key has a display indicating that usage restrictions have been applied and a usage restriction execution time display, so that it is possible to visualize the time when usage restrictions and usage restrictions have been applied compared to the conventional display. In effect, it can be detected at any time.
[0060]
In addition, the system can accurately detect the use restriction execution time, and the elapsed time and the remaining time can be displayed by automatically starting the addition or subtraction timer from that time.
[0061]
As described above, by automatically starting the timer, there is an effect that it is freed from the troublesomeness of conventionally starting the timer by itself, and the accurate elapsed time is surely detected. Further, if this system is applied to a car key, the elapsed time from the time away from the car can be known, so that it is possible to detect a charge standard for a time-rented parking lot.
[0062]
【The invention's effect】
As described above with reference to the drawings, the present invention can provide an authentication method for reducing the power consumption of a battery-powered wireless key and a wireless key using the same.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a vehicle security system to which a wireless key authentication method of the present invention is applied.
FIG. 2 is a block diagram showing a conceptual configuration of a device 30 that is mounted on the vehicle 3 side and transmits / receives a signal to / from the wireless key 1;
FIG. 3 is a block diagram showing a configuration example of a wireless key 1 having the features of the present invention.
FIG. 4 is a diagram illustrating signal transmission / reception between the wireless key 1 and a main body (base) side device.
FIG. 5 is a processing flow between the wireless key 1 and a main body (base) side device.
FIG. 6 is a diagram illustrating a time relationship of signals.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wireless key 2 Wireless key holder 3 Vehicle 100 ON / OFF switch 101 Battery 102 Control part 103 Trigger switch 104 Start signal generator 105 Changeover switch 106 Clock generator 107, 114 M series signal generator 108 OR gate 109 Transmission amplifier 110 Duplexer 111 Antenna 112 Receiving amplifier 113 Memory 115 Display unit

Claims (2)

  1. An authentication method in a security system in which a wireless key and a main body side device are connected wirelessly,
    The wireless key is sequentially set to search mode, authentication mode and application mode, and the main unit is sequentially set to standby mode, authentication mode and application mode,
    In the search mode, a search signal is transmitted from the wireless key to the main unit using a first length code,
    In the standby mode, when the device on the main unit receives the search signal, the device decodes the search signal, recognizes that the search signal is from a wireless key belonging to the corresponding security system, and transmits to the wireless key. A response signal of the main body side device is transmitted to
    When the wireless key receives a response signal from the apparatus on the main body side, the wireless key shifts to an authentication mode, and an authentication ID of the wireless key is added to the first length code to add a second longer than the search signal. Is sent to the device on the main body side,
    When the main device receives the code of the second length, the apparatus shifts to the authentication mode, and the authentication ID of the wireless key in the code of the second length and the authentication ID held in advance When they match, the authentication ID of the main unit is sent to the wireless key,
    The wireless key receives the authentication ID of the device on the main body side, compares it with the authentication ID held in advance, and when they match, shifts to the application mode and sets the application ID of the wireless key to the main body To the device
    When the main device receives the application ID from the wireless key, the main device shifts to the application mode and executes an application for controlling the device to be secured ,
    The wireless key has storage means for storing a time when the use of the main body side device is restricted, and the use of the main body side device is enabled by starting a timer from the time when the use of the main body side device is restricted. A method of authenticating a wireless key, characterized by displaying a limited elapsed time .
  2. A wireless key that performs authentication with the main body side device and executes predetermined application processing in the main body side device,
    Power is supplied by the button battery,
    An M-sequence signal generation circuit, a transmission / reception amplifier, a memory for storing a predetermined authentication ID, and a control means for controlling the generation of the M-sequence signal for the M-sequence signal generation circuit;
    The control means sequentially sets search mode, authentication mode and application mode,
    In the search mode, an M-sequence signal having a first length corresponding to a wireless key among a plurality of M-sequence signals generated from the M-sequence signal generation circuit is transmitted as a search signal to the main body side device. To control and
    When a response signal to the search signal from the main unit is received, the mode is shifted to an authentication mode, and the authentication ID of the wireless key is added to the M-sequence signal having the first length, and the search signal Sending a long second length M-sequence signal to the main unit side device,
    The main body side apparatus receives the second length M-sequence signal, shifts to the authentication mode, and holds in advance the authentication ID of the wireless key in the second length M-sequence signal. Compares the authentication ID and receives the authentication ID of the main body side device sent from the main body side device when they match, compares the authentication ID held in advance, and shifts to the application mode when they match And
    In the application mode, the application ID is transmitted to the main body side device, and the main body side device receives the application ID from the wireless key, shifts to the application mode, and controls the security target device. to execute the application,
    Furthermore, it has a memory | storage means to memorize | store the time when use of the said main body side apparatus was restrict | limited,
    A wireless key , wherein a timer is started from a time when the use of the main body side device is restricted by the control means, and an elapsed time when the use of the main body side device is restricted is displayed .
JP2002309946A 2002-10-24 2002-10-24 Wireless key authentication method and wireless key using the same Active JP4510365B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002309946A JP4510365B2 (en) 2002-10-24 2002-10-24 Wireless key authentication method and wireless key using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002309946A JP4510365B2 (en) 2002-10-24 2002-10-24 Wireless key authentication method and wireless key using the same

Publications (2)

Publication Number Publication Date
JP2004143806A JP2004143806A (en) 2004-05-20
JP4510365B2 true JP4510365B2 (en) 2010-07-21

Family

ID=32455616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002309946A Active JP4510365B2 (en) 2002-10-24 2002-10-24 Wireless key authentication method and wireless key using the same

Country Status (1)

Country Link
JP (1) JP4510365B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012225030A (en) * 2011-04-19 2012-11-15 Toso Co Ltd Electrically-driven switchgear of shield

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007195154A (en) * 2005-12-21 2007-08-02 Matsushita Electric Ind Co Ltd Communication system, wireless alarm unit, and program thereof
JP4788596B2 (en) * 2005-12-27 2011-10-05 パナソニック株式会社 Authentication system
JP4664210B2 (en) * 2006-01-10 2011-04-06 パナソニック株式会社 Wireless communication apparatus, wireless authentication system, and wireless authentication method
JP4630205B2 (en) * 2006-03-03 2011-02-09 パナソニック株式会社 Wireless authentication system
JP4830684B2 (en) * 2006-07-12 2011-12-07 パナソニック株式会社 Communication system, radio alarm device and program thereof
JP4665874B2 (en) * 2006-09-05 2011-04-06 パナソニック株式会社 Wireless device and program
JP5067074B2 (en) * 2006-10-06 2012-11-07 パナソニック株式会社 Wireless communication method and program
JP4788583B2 (en) * 2006-12-07 2011-10-05 パナソニック株式会社 Authentication apparatus and communication method
JP4848949B2 (en) * 2006-12-19 2011-12-28 パナソニック株式会社 Authentication apparatus, authentication method, and program
JP4912924B2 (en) * 2007-03-12 2012-04-11 パナソニック株式会社 Portable wireless device, wireless authentication system, wireless authentication control method, and program
JP5020318B2 (en) 2007-06-25 2012-09-05 パナソニック株式会社 Wireless communication unit, portable terminal device, and wireless authentication control method
JP4661845B2 (en) * 2007-09-07 2011-03-30 パナソニック株式会社 transceiver
JP5104292B2 (en) * 2007-12-26 2012-12-19 パナソニック株式会社 Authentication apparatus, authentication method, and program
JP5144312B2 (en) * 2008-03-10 2013-02-13 リンテック株式会社 Signal sequence generation circuit, signal sequence generation method, signal sequence generation program, and communication system
JP5121676B2 (en) * 2008-11-21 2013-01-16 リンテック株式会社 Wireless tag reader, wireless tag reading program, and wireless tag communication system
JP5157937B2 (en) * 2009-01-27 2013-03-06 パナソニック株式会社 Authentication target device and key, and wireless authentication system
JP5492960B2 (en) * 2012-09-11 2014-05-14 株式会社ソウ・システム・サービス Operator authentication operation system
JP2015116956A (en) * 2013-12-19 2015-06-25 大日本印刷株式会社 Vehicle anti-theft system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171948A (en) * 1997-06-16 1999-03-16 Toyota Motor Corp On-vehicle equipment remote control device
JP2931276B2 (en) * 1997-09-04 1999-08-09 株式会社ミヤケン経営戦略研究所 Equipment use limiting device
JP2000045589A (en) * 1998-07-28 2000-02-15 Mazda Motor Corp Keyless entry system and locking-release control method therefor
JP2000104429A (en) * 1998-09-30 2000-04-11 Toyota Motor Corp On-vehicle device remote control device
JP2002054332A (en) * 2000-08-11 2002-02-20 Denso Corp Electro controller
JP2002064648A (en) * 2000-08-22 2002-02-28 Mitsubishi Electric Corp Radio communication system and method
JP2002111521A (en) * 2000-09-29 2002-04-12 Denso Corp Transmitter
JP2002238082A (en) * 2001-02-09 2002-08-23 Bunka Shutter Co Ltd Remote control transmitter, remote control receiver and remote control system for opening/closing apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171948A (en) * 1997-06-16 1999-03-16 Toyota Motor Corp On-vehicle equipment remote control device
JP2931276B2 (en) * 1997-09-04 1999-08-09 株式会社ミヤケン経営戦略研究所 Equipment use limiting device
JP2000045589A (en) * 1998-07-28 2000-02-15 Mazda Motor Corp Keyless entry system and locking-release control method therefor
JP2000104429A (en) * 1998-09-30 2000-04-11 Toyota Motor Corp On-vehicle device remote control device
JP2002054332A (en) * 2000-08-11 2002-02-20 Denso Corp Electro controller
JP2002064648A (en) * 2000-08-22 2002-02-28 Mitsubishi Electric Corp Radio communication system and method
JP2002111521A (en) * 2000-09-29 2002-04-12 Denso Corp Transmitter
JP2002238082A (en) * 2001-02-09 2002-08-23 Bunka Shutter Co Ltd Remote control transmitter, remote control receiver and remote control system for opening/closing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012225030A (en) * 2011-04-19 2012-11-15 Toso Co Ltd Electrically-driven switchgear of shield

Also Published As

Publication number Publication date
JP2004143806A (en) 2004-05-20

Similar Documents

Publication Publication Date Title
US9424698B2 (en) Keyless entry system
USRE46539E1 (en) Electronic lock box proximity access control
US20150091696A1 (en) Electronic key lockout control in lockbox system
US8786400B2 (en) Access control system
US8115609B2 (en) Multi function bluetooth apparatus
US6956480B2 (en) Electronic apparatus including a device for preventing loss or theft
JP4911537B2 (en) Portable electronic devices that control vehicle functions or data
US8750797B2 (en) Proximity access and alarm apparatus
KR100669599B1 (en) Car remote control system and tire air-pressure monitoring system
US6965295B2 (en) Electronic key system operable with charge capacitor power
DE60123892T2 (en) Radio system
US6791477B2 (en) Method and apparatus for identifying waypoints and providing keyless remote entry in a handheld locator device
DE102013203950A1 (en) Communication system and portable device
US8193915B2 (en) Multiple transceiver synchronous communication system
US4688036A (en) Keyless entry system for automotive vehicle with power consumption saving feature
US7257374B1 (en) Automatic security locking method and system for wireless-enabled devices
US8035488B2 (en) Information access system and active-type contactless information storage device
US7629876B2 (en) Wireless key and door remote control system
US6075454A (en) Keyless entry device
US5736935A (en) Keyless vehicle entry and engine starting system
KR100770524B1 (en) Communication device and distance calculation system
EP1271420B1 (en) Passive entry with anti-theft function
US10196038B2 (en) Vehicular communication control system
US8138894B2 (en) Vehicle control system and method, and component devices
US10008062B2 (en) Multiple-band identification and ranging

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051006

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080711

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081007

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081204

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090929

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091119

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100406

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100430

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130514

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130514

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130514

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150514

Year of fee payment: 5

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350