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公开(公告)号：US06263010B1
公开(公告)日：2001-07-17
申请号：US09124702
申请日：1998-07-29
申请人： Akiko Naruse , Arata Obayashi , Ken Nakamura
发明人： Akiko Naruse , Arata Obayashi , Ken Nakamura
IPC分类号： H04B206
CPC分类号： H04B1/70756 , H04B2201/70701 , H04B2201/70709
摘要： A present invention provides a spread spectrum communication apparatus that acquisition of synchronization of the pilot signal can be conducted in a short time with a high probability when a mobile station stays in the same radio area or in its vicinity. The spread spectrum communication apparatus includes a PN period holding counter is provided in a search receiver, and phase information of the PN code is held in the counter during the power off interval. At the time of operation of synchronization acquisition of a pilot signal conducted when power is turned on again, the operation of synchronization acquisition of the pilot signal is conducted with a preset search width around the phase derived on the basis of the above described held phase information.
摘要翻译： 本发明提供一种扩展频谱通信装置，当移动台停留在相同的无线电区域或其附近时，可以以很高的概率在短时间内进行导频信号的同步的获取。 包括PN周期保持计数器的扩展频谱通信装置设置在搜索接收机中，并且在断电间隔期间将PN码的相位信息保持在计数器中。 在再次接通时进行的导频信号的同步采集的同步获取时，以与上述所保持的相位信息相对应的相位周围的预设搜索宽度进行导频信号的同步捕获的操作 。
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2.发明授权Mobile station apparatus used in CDMA cellular radio system and spread code synchronization method therefor 失效CDMA蜂窝无线电系统中使用的移动站装置及其扩展码同步方法
公开(公告)号：US5920554A
公开(公告)日：1999-07-06
申请号：US715230
申请日：1996-09-18
申请人： Ken Nakamura , Arata Obayashi
发明人： Ken Nakamura , Arata Obayashi
CPC分类号： H04B1/70754 , H04B2201/70702
摘要： In a mobile station apparatus of this invention, when a first offset is captured by a search operation performed by a first PN code search mode, it is checked, on the basis of the SID broadcasted from the corresponding base station through a sync channel, whether a base station of a desired carrier is captured. If a base station of an undesired carrier is captured, a second PN code search mode receives a neighbor list message broadcasted from the base station of the undesired carrier through a paging channel, and causes a search receiver to perform a search operation, excluding spreading code offsets notified by the message.
摘要翻译： 在本发明的移动台装置中，当通过由第一PN码搜索模式执行的搜索操作来捕获第一偏移时，基于通过同步信道从相应的基站广播的SID来检查是否 捕获所需载波的基站。 如果捕获不期望载波的基站，则第二PN码搜索模式通过寻呼信道接收从基站广播的不需要的载波的邻居列表消息，并使搜索接收机执行搜索操作，不包括扩展码 消息通知的偏移量。
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3.发明授权Mobile radio communication apparatus with synchronized reception recovering function 失效具有同步接收恢复功能的移动无线电通信装置
公开(公告)号：US5802039A
公开(公告)日：1998-09-01
申请号：US652992
申请日：1996-05-24
IPC分类号： H04B7/26 , H04J3/06 , H04L1/00 , H04L7/00 , H04L7/10 , H04W24/00 , H04W28/04 , H04W56/00 , H04W72/04 , H04W76/02 , H04W76/06 , H04W88/02 , H04J3/14
摘要： Disclosed is a mobile radio communication apparatus having a sync restoring control function equipped in a controller. When disconnection of reception is detected during communication, the sync restoring control function sends a sync acknowledge indicate signal to a digital demodulator within a cutoff allowance period to re-establish synchronized reception. The bit error rate is detected during communication, and a BER code indicating this bit error rate is displayed on a display.
摘要翻译： 公开了具有配备在控制器中的同步恢复控制功能的移动无线通信装置。 当在通信期间检测到接收断开时，同步恢复控制功能在切断允许周期内向数字解调器发送同步确认指示信号，以重新建立同步接收。 在通信期间检测到比特错误率，并且在显示器上显示指示该比特错误率的BER码。
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公开(公告)号：US5459728A
公开(公告)日：1995-10-17
申请号：US217714
申请日：1994-03-25
申请人： Yuka Yoshioka , Arata Obayashi
发明人： Yuka Yoshioka , Arata Obayashi
CPC分类号： H04B7/2643
摘要： A radio communication apparatus for use in a time division multiple access (TDMA) communication system prevents signals from being transmitted through a transmitter in response to recognition that the transmitter operates during an unassigned time slot. A controller is utilized to recognize that the transmitter operates during the unassigned time slot. Power to the transmitter is disconnected in response to the recognition.
摘要翻译： 用于时分多址（TDMA）通信系统的无线电通信装置响应于在未分配时隙期间发射机操作的识别，防止信号通过发射机发射。 使用控制器来识别发射机在未分配的时隙期间操作。 响应于识别，断开发射机的电源。
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公开(公告)号：US5841862A
公开(公告)日：1998-11-24
申请号：US530371
申请日：1995-10-12
CPC分类号： H04W48/16
摘要： When at a starting time of an apparatus with a power supply turned ON a designation operation of a communication mode is carried out or one communication operation is finished, a base station search control section (21) in a control circuit (20) conducts a search on control channels received from respective base station, selects from among those base stations whose control channels are received at an electric field strength greater than a predetermined level a base station possessing a desired communication mode and having the greatest electric field strength, and acquires and sets this base station, thus effecting a transfer to a standby state.
摘要翻译： PCT No.PCT / JP94 / 00602 Sec。 371 1995年10月12日第 102（e）日期1995年10月12日PCT 1994年4月11日PCT PCT。 公开号WO94 / 24778 日期1994年10月27日当电源接通的设备的开始时间执行通信模式的指定操作或一个通信操作完成时，控制电路中的基站搜索控制部分（21） 20）对从各个基站接收到的控制信道进行搜索，从控制信道以大于预定电平的电场强度接收的那些基站中进行选择，具有期望的通信模式的基站具有最大的电场强度 并且获取和设置该基站，从而进行到待机状态的转移。
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6.发明授权Radio communication apparatus having a received signal strength measuring function 失效具有接收信号强度测量功能的无线通信装置
公开(公告)号：US5390365A
公开(公告)日：1995-02-14
申请号：US885973
申请日：1992-05-20
申请人： Masayuki Enoki , Arata Obayashi
发明人： Masayuki Enoki , Arata Obayashi
CPC分类号： H04L1/20 , H04B17/21 , H04B17/23 , H04B17/318 , H04W88/06
摘要： A dual mode cellular radio communication apparatus having a received signal strength measuring function is disclosed. The measured strength of the signal may be corrected when the apparatus operates in the digital mode. The value of corrected strength may be used for indicating the received signal strength to a user of the apparatus and for reporting the received signal strength to a base station. Similarly, the measured strength of the signal may be corrected for indicating the received signal strength to a user of the apparatus when the apparatus operates in the analog mode.
摘要翻译： 公开了一种具有接收信号强度测量功能的双模蜂窝无线电通信装置。 当设备以数字模式工作时，可以校正测量的信号强度。 校正强度的值可以用于向设备的用户指示接收的信号强度，并且用于向基站报告所接收的信号强度。 类似地，当装置以模拟模式操作时，可以校正测量的信号强度，以指示装置的用户接收到的信号强度。
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7.发明授权Mobile radio communication device using plurals authentication parameters 失效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
公开(公告)号：US5943614A
公开(公告)日：1999-08-24
申请号：US592300
申请日：1996-02-09
申请人： Arata Obayashi , Takashi Sakagawa
发明人： Arata Obayashi , Takashi Sakagawa
摘要： 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).
摘要翻译： 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”。
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8.发明授权Dual mode radio communication apparatus having function of selectively designating analog or digital mode 失效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
公开(公告)号：US5564077A
公开(公告)日：1996-10-08
申请号：US13644
申请日：1993-02-04
CPC分类号： H04W88/06
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4866415A
公开(公告)日：1989-09-12
申请号：US145737
申请日：1988-01-19
申请人： Arata Obayashi , Ryohei Oba
发明人： Arata Obayashi , Ryohei Oba
CPC分类号： H04B1/00
摘要： A tone signal is formed by repeatedly reading out digital data stored in a memory device. Thus a predetermined tone wavefrom signal is stored in the memory device as data corresponding to the amplitude value at a plurality of sampling points and the data are repeatedly read out at a predetermined speed. A quasi sine wave signal is formed based on the read out signal. Harmonic components are eliminated from the quasi sine wave signal with a lowpass filter, thereby forming a desired tone signal.
摘要翻译： 通过重复读出存储在存储装置中的数字数据来形成音调信号。 因此，来自信号的预定音调波作为与多个采样点处的振幅值相对应的数据存储在存储装置中，并且以预定速度重复读出数据。 基于读出信号形成准正弦波信号。 使用低通滤波器从准正弦波信号中消除谐波分量，由此形成期望的音调信号。
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10.发明授权
公开(公告)号：US5710986A
公开(公告)日：1998-01-20
申请号：US617942
申请日：1996-03-15
CPC分类号： H04W88/06
摘要： 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.
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