公开(公告)号：US06604415B2

公开(公告)日：2003-08-12

申请号：US09956726

申请日：2001-09-20

申请人： Noboru Imao ,  Michiya Katou ,  Yasuhisa Tsujita

发明人： Noboru Imao ,  Michiya Katou ,  Yasuhisa Tsujita

IPC分类号： B60C2302

CPC分类号： B60C23/0408 ,  B60C23/0433 ,  B60C23/0444

摘要： In detecting which transmitter of several of transmitters has transmitted a radio signal based on digital data from an RF circuit, a main controller of a receiver consecutively sends activation commands to each of several control circuits such that only one of the control circuits is activated at a time. The main controller detects which of the antennas corresponds to the control circuit that was activated when the voltage level signal from the RF circuit was lowest, and judges that the detected antenna is closest to the transmitter that transmitted the radio wave. As a result, the power consumption is reduced, and the transmitter that transmitted the radio wave is accurately detected.

公开(公告)号：US06218936B1

公开(公告)日：2001-04-17

申请号：US09382569

申请日：1999-08-25

申请人： Noboru Imao

发明人： Noboru Imao

IPC分类号： B60C2300

CPC分类号： B60C23/0416 ,  B60C23/0464 ,  B60C23/0474

摘要： A tire air pressure monitoring system includes transmitters and a receiver. The transmitters wirelessly transmit data regarding the inner pressure of tires and the receiver receives the data from the transmitters. Each transmitter has its own ID code and includes a pressure sensor for measuring the inner pressure of the corresponding tire. Every time each pressure sensor measures the pressure, the corresponding transmitter generates a time interval by performing a pseudorandom number calculation based on the measured pressure and its ID code. The pressure sensor will measure the pressure each time the obtained time interval elapses. When each pressure sensor measures the pressure for a predetermined number of times, the corresponding transmitter wirelessly transmits data. This system prevents the transmitters from interfacing with one another and facilitates the manufacture of the transmitters.

摘要翻译： 轮胎气压监测系统包括发射器和接收器。 发射机无线传输关于轮胎内部压力的数据，接收机从发射机接收数据。 每个变送器都有自己的ID码，并包括用于测量相应轮胎内压的压力传感器。 每次压力传感器测量压力时，相应的变送器通过根据测量的压力及其ID代码执行伪随机数计算来产生时间间隔。 压力传感器将在每次获得的时间间隔过去时测量压力。 当每个压力传感器测量压力达预定次数时，相应的发射机无线地传输数据。 该系统防止发射机彼此接口并有助于发射机的制造。

公开(公告)号：US06505507B1

公开(公告)日：2003-01-14

申请号：US09495218

申请日：2000-01-31

申请人： Noboru Imao ,  Mitiya Katou ,  Setsuhiro Saheki

发明人： Noboru Imao ,  Mitiya Katou ,  Setsuhiro Saheki

IPC分类号： B60C2302

CPC分类号： B60C23/0408

摘要： A tire air pressure monitoring apparatus includes a plurality of transmitters provided in respective tires on a vehicle and a receiver mounted on the body frame of the vehicle. Each transmitter radio-transmits data regarding the internal air pressure of the associated tire. The receiver receives radio-transmitted data from each transmitter. The receiver displays the received data on a display and stores the data in a non-volatile memory. When a request signal from a predetermined external communication apparatus is received, the receiver radio-transmits data stored in the non-volatile memory to the external communication apparatus. This allows various kinds of data such as air pressure data to be easily loaded from the receiver to the external communication apparatus.

摘要翻译： 轮胎气压监测装置包括设置在车辆的相应轮胎中的多个发射器和安装在车辆的车体框架上的接收器。 每个发射机无线电传输关于相关轮胎的内部空气压力的数据。 接收机从每个发射机接收无线电发射的数据。 接收机在接收机上显示接收到的数据，并将数据存储在非易失性存储器中。 当接收到来自预定的外部通信装置的请求信号时，接收机将存储在非易失性存储器中的数据无线电发送到外部通信装置。 这允许诸如气压数据的各种数据容易地从接收器加载到外部通信装置。