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    • 2. 发明申请
    • METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A RESOURCE LIMITED TO CERTAIN TIME SLOTS, FROM A DYNAMIC COUNTER
    • 从动态计数器控制某些资源进入某些时间段的方法和系统
    • WO00033260A1
    • 2000-06-08
    • PCT/FR1999/002957
    • 1999-11-30
    • G07C9/00
    • G07C9/00111G07C9/00015G07C9/00023G07C9/00182G07C2009/00238G07C2009/00634G07C2009/00777
    • The invention concerns a method for controlling access to an electronic key, provided with a real time clock delivering a current time value (VH) to an electronic lock, within a predetermined time slot (PH) which consists in transmitting (1004) from the key to the lock the time slot (PH), the current time value (VH) and (1005) a certain quantity of electric power (E). In the lock, it consists in storing (1006) the energy transmitted (E); verifying the conformity of the current time value (VH) (1007) with the time slot (PH) and (1008) with the reference count value (VCref). If there is conformity, access is authorised, the reference count value (VCref) is updated, and the stored energy (E) is used to increment the updated reference count value, so that it operates as the current time value delivered by a real time clock.
    • 本发明涉及一种控制对电子钥匙的访问的方法,该电子钥匙在预定时隙(PH)内提供有向电子锁递送当前时间值(VH)的实时时钟,该时间间隔包括从密钥发送(1004) 锁定时隙(PH),当前时间值(VH)和(1005)一定数量的电力(E)。 在锁中,它包括存储(1006)所传送的能量(E); 验证当前时间值(VH)(1007)与时隙(PH)和(1008)与参考计数值(VCref)的一致性。 如果符合要求,则授权访问,更新参考计数值(VCref),并且使用存储的能量(E)来增加更新的参考计数值,使得其作为当前时间值实时运行 时钟。
    • 4. 发明申请
    • A METHOD AND APPARATUS FOR RECEIVING AN AMPLITUDE MODULATED RADIOSIGNAL
    • 一种用于接收放大调制放大信号的方法和装置
    • WO02049888A1
    • 2002-06-27
    • PCT/IE2001/000161
    • 2001-12-20
    • B60R25/24G07C9/00H03J1/00H04B1/06H04B1/69H04K1/04B60R25/00G08C17/02
    • B60R25/24G07C9/00182G07C2009/00238G07C2009/00555G07C2009/00793G07C2209/61H03J1/0091
    • Receiving apparatus (1) for receiving an amplitude modulated signal which may be transmitted on a plurality of frequency channels within a predetermined frequency bandwidth comprises a tuner (3) for sequentially scanning through the channels under the control of a microprocessor (6) which determines the presence of a signal on a channel to which the tuner (3) is tuned. A first validation circuit (10) determines if the received signal is a valid type signal, and if so the microprocessor (6) counts the channels from the channel on which the signal is first detected to the channel on which the signal can no longer be detected is reached. The microprocessor (6) determines the middle one of the channels in which the signal is detected, and the microprocessor (6) locks the tuner (3) onto the frequency of the middle channel, and simultaneously operates a gate circuit (11) for outputting at least one complete signal to security apparatus of a motor vehicle for switching the state of the security apparatus from one of an armed and a disarmed state to the other of the armed and disarmed state. A noise suppressing circuit (9) is responsive to a noise analysing circuit (8) under the control of the microprocessor (6) for suppressing noise in the received signal.
    • 用于接收可在预定频率带宽内在多个频道上发送的幅度调制信号的接收装置(1)包括调谐器(3),用于在微处理器(6)的控制下顺序扫描通道,该微处理器确定 在调谐器(3)调谐到的频道上存在信号。 第一确认电路(10)确定接收到的信号是否是有效类型的信号,如果是,则微处理器(6)将信号首先检测到的信道的信道计数到该信号不再可能的信道 检测到达到。 微处理器(6)确定检测信号的通道的中间一个,微处理器(6)将调谐器(3)锁定在中间通道的频率上,同时操作门电路(11)以输出 向机动车辆的安全装置发送至少一个完整的信号,用于将安全装置的状态从武装和解除状态中的一个转换到另一个武装和撤防状态。 噪声抑制电路(9)在微处理器(6)的控制下响应于噪声分析电路(8),用于抑制接收信号中的噪声。
    • 5. 发明申请
    • AUTOMATIC RESYNCHRONIZATION FOR REMOTE KEYLESS ENTRY SYSTEMS
    • 用于远程无钥匙进入系统的自动重新定位
    • WO1998027300A1
    • 1998-06-25
    • PCT/US1997023148
    • 1997-12-04
    • UT AUTOMOTIVE DEARBORN, INC.
    • UT AUTOMOTIVE DEARBORN, INC.FELDMAN, Andrea, M.SETTLES, Steven, R.
    • E05B49/00
    • G07C9/00182G07C2009/0023G07C2009/00238G07C2009/00793G07C2209/06
    • The present invention teaches a method and system for resynchronizing a remote keyless entry receiver having received a new encrypted message transmitted by the transmitter which does not match a previous encrypted message, also transmitted by the transmitter, and stored in memory. The method comprises a first step of transmitting and receiving a first new follow up encrypted message. Subsequently, the received new encrypted message is re-encrypted, and that result is tested against the received first new follow up encrypted message to determine whether there is a match. In the event both match, a second new follow up encrypted message is transmitted and received. At this point, the received re-encrypted new encrypted message is re-encrypted a second time, and that result is tested against the received second new follow up encrypted message to determine whether there is a further match. If a match is made, the received second new follow up encrypted message is decrypted and the command within the received and decrypted second new follow up encrypted message is initiated.
    • 本发明教导了一种用于重新同步遥控无钥匙进入接收机的方法和系统,该远程无钥匙进入接收机已经接收到由发射机发送的新加密消息,其与先前的加密消息不一致,并且还由发射机发送并存储在存储器中。 该方法包括发送和接收第一新的后续加密消息的第一步骤。 随后,接收到的新加密消息被重新加密,并且针对接收到的第一新的后续加密消息测试该结果,以确定是否存在匹配。 在匹配的情况下,发送和接收第二新的后续加密消息。 此时,接收的重新加密的新加密消息第二次被重新加密,并且针对接收到的第二新的跟进加密消息测试该结果,以确定是否存在进一步的匹配。 如果进行了匹配,则接收到的第二新的后续加密消息被解密,并且启动了接收和解密的第二新跟踪加密消息中的命令。