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    • 4. 发明授权
    • Mobile terminal apparatus and system selecting method
    • 移动终端设备及系统选择方法
    • US07174188B2
    • 2007-02-06
    • US11218621
    • 2005-09-06
    • Moriaki KiyomotoAkira IshikuraTakashi Sakagawa
    • Moriaki KiyomotoAkira IshikuraTakashi Sakagawa
    • H04M1/00
    • H04W60/04
    • In a first standby state, the reception quality of a signal from a system which has established synchronization is detected. If the detected reception quality deteriorates to be less than a threshold value, the destination of synchronization establishment is changed from a first system to a second system. In a second standby state after this system change, the reception quality of a system having a higher priority order of selection than the second system which has established synchronization is detected. If a third system whose detected reception quality exceeds the threshold value is found, the destination of synchronization establishment is changed to this third system again. After that, the first standby state is returned.
    • 在第一备用状态下,检测来自建立同步的系统的信号的接收质量。 如果检测到的接收质量恶化到小于阈值,则将同步建立的目的地从第一系统改变为第二系统。 在该系统改变之后的第二待机状态下,检测到具有比建立同步的第二系统更高的优先级选择的系统的接收质量。 如果找到检测到的接收质量超过阈值的第三系统,则同步建立的目的地再次被改变到该第三系统。 之后,返回第一个待机状态。
    • 6. 发明授权
    • Mobile radio communication device using plurals authentication parameters
    • 使用认证信息的移动无线电通信系统和系统中使用的移动无线电通信设备
    • US5943614A
    • 1999-08-24
    • US592300
    • 1996-02-09
    • Arata ObayashiTakashi Sakagawa
    • Arata ObayashiTakashi Sakagawa
    • H04W12/06H04W12/12H04W88/02H04B1/38
    • H04W12/06H04W88/02
    • There is provided a mobile radio communication device which is designed to prevent dishonest applications by using a management table (30) for storing a plurality of MINs and count values as authentication parameters corresponding to the MINs and effecting the authentication procedure at the time of radio connection to a base station. Whether or not an input MIN is already set in the management table (30) is determined at the time of MIN setting operation, and if it is already set, it is determined that the setting operation is a resetting operation and the already set MIN and count value are kept held as they are. On the other hand, if the input MIN is not set in the management table (30), whether or not a MIN having a count value of "0" is set in the management table (30) is determined, and if it is set, an input MIN is set in place of the above MIN, and if it is not set, an input MIN and the initial value "0" of the count value are set in an available area of the management table (30).
    • PCT No.PCT / JP94 / 01331 Sec。 371日期1996年2月9日 102(e)日期1996年2月9日PCT 1994年8月11日PCT PCT。 第WO95 / 05054号公报 日期2005年2月16日提供了一种移动无线电通信设备,其被设计为通过使用用于存储多个MIN和计数值的管理表(30)来防止不诚实的应用,作为与MIN对应的认证参数并且执行认证过程 无线电连接到基站的时间。 在MIN设置操作时确定管理表(30)中是否已经设置了输入MIN,并且如果已经设置,则确定设置操作是重置操作和已经设置的MIN和 计数值保持原样。 另一方面,如果在管理表(30)中未设置输入MIN,则确定在管理表(30)中是否设置了具有计数值“0”的MIN,并且如果设置 设置输入MIN代替上述MIN,并且如果未设置,则在管理表(30)的可用区域中设置输入MIN和计数值的初始值“0”。
    • 7. 发明授权
    • Radio telecommunication apparatus for use in radio telecommunication
system
    • 用于无线电通信系统的无线电通信设备
    • US5878340A
    • 1999-03-02
    • US590879
    • 1996-01-24
    • Yoshiharu AsaokaShinya TakahashiTakashi Sakagawa
    • Yoshiharu AsaokaShinya TakahashiTakashi Sakagawa
    • H04W12/06H04B1/38
    • H04W12/06
    • When a vehicle radio telephone has transmitted a call signal, a base-station/control-station suspends the communication channel. After the base-station/control-station transmits a PIN transmission request signal to the vehicle radio telephone via the communication channel, a liquid crystal display 452 incorporated in the telephone displays a PIN transmission request. Operating a key section 430 in the telephone generates a flash operation signal. When the base-station/control-station has received the flash operation signal, it transmits a telephone number transmission request signal. At this time, the PIN transmission request on the display 452 is erased, and a PIN is read from an ID/ROM and a PIN code signal is transmitted. Upon receiving the PIN code signal, the base-station/control-station examines whether or not the PIN indicated by the PIN code signal identical to a registered one. If they are identical to each other, the vehicle radio telephone is connected to a destination with an already received telephone number. Thus, the PIN can be easily and reliably transmitted from the vehicle radio telephone to the base-station/control-station.
    • 当车载无线电话已发送呼叫信号时,基站/控制站暂停通信信道。 在基站/控制站经由通信信道向车载无线电话发送PIN发送请求信号之后,结合在电话中的液晶显示器452显示PIN发送请求。 在电话中操作钥匙部分430产生闪光操作信号。 当基站/控制站已经接收到闪光操作信号时,它发送电话号码发送请求信号。 此时,显示器452上的PIN发送请求被擦除,并且从ID / ROM读取PIN并发送PIN码信号。 在接收到PIN码信号时,基站/控制站检查由PIN码信号指示的PIN是否与已注册的PIN相同。 如果它们彼此相同,则车载无线电话连接到具有已经接收到的电话号码的目的地。 因此,可以容易且可靠地从车载无线电话向基站/控制站发送PIN。
    • 8. 发明授权
    • Dual mode radio communication apparatus having function of selectively
designating analog or digital mode
    • 具有选择性地指定模拟或数字模式的功能的双模无线电通信装置
    • US5564077A
    • 1996-10-08
    • US13644
    • 1993-02-04
    • Arata ObayashiTakumi HagaNaoyuki WakabayashiTakashi Sakagawa
    • Arata ObayashiTakumi HagaNaoyuki WakabayashiTakashi Sakagawa
    • H04W88/06H04Q7/22H04Q7/32
    • H04W88/06
    • A radio communication apparatus of this invention includes a mode designation switch for selectively designating and inputting a desired mode from an analog mode and a digital mode, and a mode storage circuit for storing the desired mode designated and input by the mode designation switch and has a mode setting control function, a mode comparison function, and a mode change control function. In order to establish a radio link, control is performed to set a mode for transmitting a communication signal in accordance with the desired mode stored in the mode storage circuit. After the start of transmission of the communication signal, the mode comparison function compares the mode set by the mode setting control function with the desired mode stored in the mode storage circuit. If these modes are determined not to coincide with each other by the mode comparison function, control is performed to change the mode set by the mode setting control function to the desired mode stored in the mode storage circuit in accordance with the mode change control function.
    • 本发明的无线通信装置包括模式指定开关,用于从模拟模式和数字模式选择性地指定和输入期望模式,以及模式存储电路,用于存储由模式指定开关指定和输入的期望模式,并具有 模式设置控制功能,模式比较功能和模式切换控制功能。 为了建立无线电链路,执行控制以根据存储在模式存储电路中的期望模式来设置用于发送通信信号的模式。 在通信信号的发送开始之后,模式比较功能将通过模式设置控制功能设置的模式与存储在模式存储电路中的期望模式进行比较。 如果这些模式被确定为不通过模式比较功能彼此一致,则执行控制以根据模式改变控制功能将由模式设置控制功能设置的模式改变为存储在模式存储电路中的期望模式。