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    • 4. 发明授权
    • Automotive information display system
    • 汽车信息显示系统
    • US07742857B2
    • 2010-06-22
    • US11606122
    • 2006-11-30
    • Taro IwamotoYoshihisa OkamotoToshihiro Hara
    • Taro IwamotoYoshihisa OkamotoToshihiro Hara
    • G06F7/00G01C21/30
    • G06F3/0482G01C21/3664G01C21/3688G06F2203/04801Y10S715/97
    • An information display system for a vehicle includes: a display for displaying, an operation screen for operating at least one piece of in-vehicle equipment; a first operation section including a leftward moving switch, a rightward moving switch, and a selection enter switch capable of being manipulated upward and downward and being pushed; and a controller. The controller changes a position of the operation menu selected point in the operation menus horizontally arranged on the operation screen for selecting any one of the operation menus in response to a manipulation signal from the leftward moving switch or the rightward moving switch and executes an operation relating to the selected operation menu in response to an upward or downward manipulation signal from the selection enter switch.
    • 一种用于车辆的信息显示系统包括:用于显示用于操作至少一个车载设备的操作屏幕的显示器; 第一操作部分,包括向左移动开关,向右移动开关和能够被上下操作并被推动的选择进入开关; 和控制器。 控制器改变水平布置在操作屏幕上的操作菜单中的操作菜单选择点的位置,用于响应于来自左侧移动开关或向右移动开关的操作信号选择任何一个操作菜单,并执行相关操作 响应于来自选择进入开关的向上或向下操作信号到所选择的操作菜单。
    • 5. 发明授权
    • Quadrature modulator for TDMA/TDD radio communication apparatus
    • TDMA / TDD无线电通信装置的正交调制器
    • US5553317A
    • 1996-09-03
    • US946551
    • 1992-09-17
    • Toshihiro Hara
    • Toshihiro Hara
    • H04B7/24H04B1/56H04B7/26H04J3/00H04L5/16H04M1/725H04B1/44
    • H04M1/72502H04B1/56H04B7/2643
    • In a radio telephone apparatus of the TDMA/TDD system, signal transmission and reception are conducted by use of carriers having an identical frequency. This leads to a problem that the transmission intermediate frequency carrier and the transmission RF carrier enter the receiver section in an identical housing, thereby causing a cochanncl interference. To overcome this difficulty, there is disposed a frequency division modulator including a frequency divider for dividing by four a local signal having a frequency which is four times that of the intermediate frequency to obtain a carrier having a frequency shifted from that of the local signal by 90.degree.. Signal to be modulated is subjected to an orthogonal modulation according to the carrier wave to produce an intermediate frequency carrier. The operation of the modulator is stopped in a signal reception state to prevent the intermediate frequency carrier undergone the orthogonal modulation from being produced.
    • 在TDMA / TDD系统的无线电话装置中,通过使用具有相同频率的载波进行信号的发送和接收。 这导致传输中频载波和发射RF载波在相同外壳中进入接收机部分的问题,从而导致同频干扰。 为了克服这个困难,设置了一个分频调制器,其包括一个分频器,用于将具有四倍于中频的频率的本地信号除以四,以获得具有从本地信号的频率偏移的载波的载波 90°。 要调制的信号根据载波进行正交调制,以产生中频载波。 调制器的操作在信号接收状态下停止,以防止正在进行正交调制的中频载波被产生。
    • 8. 发明授权
    • Cordless key telephone system having zone switching function
    • 无线钥匙电话系统具有区域切换功能
    • US5454028A
    • 1995-09-26
    • US187315
    • 1994-01-27
    • Toshihiro HaraShinji KumatakaKosuke HashimotoIchiro Tamura
    • Toshihiro HaraShinji KumatakaKosuke HashimotoIchiro Tamura
    • H04W36/08H04W36/30H04W84/16H04M11/00
    • H04W36/30H04W36/0055H04W84/16
    • In a cordless key telephone system for servicing separate service zones (3.sub.1, 3.sub.2), a cordless station (5) establishes a two-way radio channel with an access unit (4) of the service zone in which it is located, and constantly monitors the field intensity of the established channel and transmits a zone switching signal when the field intensity is below a specified level as an indication that the cordless station is leaving a first zone (3.sub.1) and entering a second zone (3.sub.2). A main controller (2) establishes a switched connection between exchange lines (6) and the access units (4). In response to the zone switching signal from a given cordless station via the access unit of the first zone, the main controller holds an exchange line (6.sub.i) that is connected to the access unit (4.sub.j) of the first zone through a first switched connection, and establishes a second switched connection between the exchange line (6.sub.i) and the access unit (4.sub.j) of the second zone, instead of the first switched connection. A vocal announcement is applied to the exchange line indicating to a communicating party that the cordless station is switching zones.
    • 在用于对单独服务区域(31,32)进行服务的无绳密钥电话系统中,无绳站(5)与其所在的服务区域的接入单元(4)建立双向无线电信道,并且不断地监视 所建立的信道的场强度,并且当场强度低于指定电平时发送区切换信号,作为无绳站离开第一区(31)并进入第二区(32)的指示。 主控制器(2)在交换线路(6)和接入单元(4)之间建立切换连接。 响应于来自给定无绳站的区段切换信号经由第一区域的访问单元,主控制器保持通过第一交换连接连接到第一区域的访问单元(4j)的交换线(6i) 并且在第二区域的交换线路(6i)和接入单元(4j)之间建立第二交换连接,而不是第一交换连接。 声音通知被应用于向通信方指示无绳站正在切换区域的交换线路。
    • 9. 发明授权
    • Cordless key telephone system for covering multiple service areas having
exclusively assigned control channels
    • 无绳电话系统,用于覆盖专门分配控制信道的多个业务区域
    • US5283817A
    • 1994-02-01
    • US686469
    • 1991-04-17
    • Toshihiro HaraYukihiro ShimuraShinji KumatakaKosuke Hashimoto
    • Toshihiro HaraYukihiro ShimuraShinji KumatakaKosuke Hashimoto
    • H04B7/26H04W84/16H04M11/00
    • H04W84/16H04W28/16H04W48/08H04W76/02H04W8/26
    • In a cordless key telephone system for covering multiple service areas, access units are divided into groups corresponding respectively to the service areas, the access units of each group being located in the corresponding service area for broadcasting a recurrent sequence of address signals on a two-way radio control channel and carrying speech signals on an assigned two-way telephone channel. The access units of each group has a uniquely assigned control channel different in frequency from the control channel of the other group. Cordless stations are switchable to the control channel of a first group of the access units for detecting an address signal and subsequently switchable to the control channel of the access units of a second group if the address signal is not detected in a first sequence for detecting the addressed signal in a second sequence. A main controller is coupled to a switched telephone network for causing the access units to broadcast the address signals in response to an incoming call from the network and for establishing a connection between the network and one of the cordless stations.
    • 在覆盖多个服务区域的无绳电话系统中,接入单元被划分为分别对应于服务区域的组,每个组的接入单元位于相应的服务区域,用于在二维网络上广播地址信号的复现序列, 在指定的双向电话信道上携带语音信号。 每个组的接入单元具有与另一组的控制信道频率不同的唯一分配的控制信道。 无绳电台可切换到第一组接入单元的控制信道,用于检测地址信号,并且如果在第一序列中没有检测到地址信号,则可以切换到第二组的接入单元的控制信道, 寻址信号。 主控制器耦合到交换电话网络,用于使得接入单元响应于来自网络的呼入而广播地址信号,并且用于建立网络与无绳站之一之间的连接。