Method and apparatus for coordinating independent communications systems
    1.
    发明授权
    Method and apparatus for coordinating independent communications systems 失效
    协调独立通信系统的方法和装置

    公开(公告)号:US4670905A

    公开(公告)日:1987-06-02

    申请号:US802922

    申请日:1985-11-29

    IPC分类号: H04W36/14 H04B1/00 H04B7/00

    CPC分类号: H04W36/30 H04W36/14

    摘要: A method and apparatus for coordinating the transfer of communications control from one independent radio communications system to another is disclosed. A remote unit which communicates data messages is associated with a home system which has a plurality of fixed sites and overlapping radio coverage areas. As the remote unit travels away from its home system, communications may be maintained by providing radio coverage from an independent roam system. The last message received by the home and roam systems from the remote unit has the associated radio signal strength and time of reception stored at each system. When a current message is transmitted by the remote unit and both the home and the roam system receive the message, the roam system time stamps the message and calculates the signal strength associated with the current message. If the amount of time elapsed between the last and the current message exceeds a predetermined amount of time or if the signal strength exceeds a predetermined threshold, the roam system requests transfer of control of the processing of the current message from the home system. When the home system receives this request, it calculates the difference in signal strength between the signal strength of the current message as received by the roam system and the signal strength of the current message as received by the home system. If the difference exceeds a predetermined amount, the request of the roam system to further process the message is granted.

    摘要翻译: 公开了一种用于协调从一个独立的无线电通信系统到另一个的通信控制的传送的方法和装置。 传送数据消息的远程单元与具有多个固定站点和重叠无线电覆盖区域的归属系统相关联。 当远程单元远离其家庭系统时,可以通过提供来自独立漫游系统的无线电覆盖来维护通信。 家庭和漫游系统从远程单元接收的最后一个消息具有存储在每个系统上的相关无线电信号强度和接收时间。 当远程单元发送当前消息并且家庭和漫游系统都接收消息时,漫游系统时间戳该消息并计算与当前消息相关联的信号强度。 如果最后一次和当前消息之间经过的时间量超过预定时间量,或者如果信号强度超过预定阈值,则漫游系统请求从家庭系统传送对当前消息的处理的控制。 当家庭系统接收到该请求时,它计算由漫游系统接收的当前消息的信号强度与家庭系统接收的当前消息的信号强度之间的信号强度差。 如果差异超过预定量,则授予漫游系统进一步处理消息的请求。

    Two way personal message system with extended coverage
    2.
    发明授权
    Two way personal message system with extended coverage 失效
    具有扩展覆盖范围的双向个人信息系统

    公开(公告)号:US4644351A

    公开(公告)日:1987-02-17

    申请号:US608334

    申请日:1984-05-08

    CPC分类号: H04W68/00 G08B3/1016

    摘要: A communications system for carrying messages via a radio channel between one central site of a plurality of central sites and a plurality of two-way remote data units is disclosed. Each central site has a radio coverage area and each remote unit has a unique address and association with one of the central sites. When a message addressed to one of the remote units is received in a central site, a file of remote unit addresses is searched to find the location and central site association of the remote unit to which the message is addressed. If an address match is found indicating that the remote transceiver is in the coverage area of the message-receiving central site, the addressed message is stored and transmitted in that site. If an address match is found indicating that the remote transceiver is in another central site, the addressed message is conveyed to that site for transmission.

    摘要翻译: 公开了一种用于经由多个中心站点的一个中心站点与多个双向远程数据单元之间的无线电信道传送消息的通信系统。 每个中心站点都有无线电覆盖区域,每个远程单元都有一个独特的地址,并与其中一个中心站点相关联。 当在中心站点中接收到寻址到一个远程单元的消息时,搜索远程单元地址的文件以找到消息所寻址的远程单元的位置和中心站点关联。 如果发现地址匹配指示远程收发器位于消息接收中心站点的覆盖区域中,则寻址的消息被存储并在该站点中传送。 如果发现地址匹配指示远程收发器在另一个中心站点,则寻址的消息被传送到该站点进行传输。

    Write-once read-many memory using EEPROM cells
    3.
    发明授权
    Write-once read-many memory using EEPROM cells 失效
    使用EEPROM单元写入一次多读存储器

    公开(公告)号:US5553019A

    公开(公告)日:1996-09-03

    申请号:US376518

    申请日:1995-01-23

    IPC分类号: G11C7/24 G11C16/22 G11C11/34

    CPC分类号: G11C16/22 G11C7/24

    摘要: A write-once read-many memory system (10) for electronically securing a select portion of memory from being overwritten or erased. Memory system (10) includes one or more storage cells (25) for providing electronic storage of information. A control cell (13) is used for controlling writing and/or erasing access to the storage cells (25). Control logic (11) is provided to control access to the control cell (13). Control cell (13) and control logic (11) are used as a gate to provide selective access to storage cells (25) through write control line (19) and erase control line (21). Storage cells (25) can only be accessed when the control cell (13) in an appropriate logic state.

    摘要翻译: 一种只读存储器的读写存储器系统(10),用于电子地保护存储器的选择部分被覆盖或擦除。 存储器系统(10)包括用于提供信息的电子存储的一个或多个存储单元(25)。 控制单元(13)用于控制对存储单元(25)的写入和/或擦除访问。 提供控制逻辑(11)以控制对控制单元(13)的访问。 控制单元(13)和控制逻辑(11)用作门,以通过写入控制线(19)和擦除控制线(21)提供对存储单元(25)的选择性访问。 只有当控制单元(13)处于适当的逻辑状态时才能访问存储单元(25)。

    Virtual radio interface and radio operating system for a communication
device
    4.
    发明授权
    Virtual radio interface and radio operating system for a communication device 失效
    用于通信设备的虚拟无线电接口和无线电操作系统

    公开(公告)号:US5490275A

    公开(公告)日:1996-02-06

    申请号:US383556

    申请日:1995-02-01

    CPC分类号: H03J7/18 G06F13/12

    摘要: A communication device (100) includes three levels and at least one feature and at least one protocol for communicating with other communication devices. The three levels are high level or user ergonomics (302), common level or feature/protocol (310), and low level or hardware platform (318). The feature/protocol level (310) is adapted for controlling the at least one feature and the at least one protocol. The user ergonomics (302) includes a first interface (304) coupled to the feature/protocol level (310) for allowing the user ergonomics level (302) to change without affecting the feature/protocol level (310). The, hardware platform (318) includes a second interface coupled to the feature/protocol level (310) for allowing the hardware platform (318) to change without affecting the feature/protocol level (310) or the user ergonomics level (302).

    摘要翻译: 通信设备(100)包括三个级别和至少一个特征以及用于与其他通信设备进行通信的至少一个协议。 这三个级别是高级别或用户人体工程学(302),共同级别或功能/协议(310)以及低级别或硬件平台(318)。 特征/协议级(310)适于控制该至少一个特征和至少一个协议。 用户人体工程学(302)包括耦合到特征/协议级别(310)的第一接口(304),用于允许用户人体工程学级别(302)改变而不影响特征/协议级别(310)。 该硬件平台(318)包括耦合到特征/协议级(310)的第二接口,用于允许硬件平台(318)改变而不影响特征/协议级(310)或用户人机工程学级(302)。

    Method of communications between and within virtual radio interface
standard layers
    5.
    发明授权
    Method of communications between and within virtual radio interface standard layers 失效
    虚拟无线接口标准层之间和之间的通信方法

    公开(公告)号:US5363315A

    公开(公告)日:1994-11-08

    申请号:US906990

    申请日:1992-06-30

    IPC分类号: G06F9/46 G06F13/38 G08C17/00

    CPC分类号: G06F9/544 G06F13/387

    摘要: In radio processing control (11), a plurality of architectural layers (270, 290, 390) separate at least one of a plurality of tasks (272) from another task (292). For communicating among the tasks within (274, 276, 278) or across (229, 239) the layers, a buffer (300) for each of the tasks is provided by a communication resource (602). A messaging protocol for passing information from the tasks is defined to be a predefined information packet having a header (700) preceding any optional data. A flag portion (701) of the header designates the information as intralayer or interlayer. If the information is interlayer (229, 239), an identifier portion (703, 704) of the header identifies the source (272) of the information and an operation portion (702) identifies an operation code.

    摘要翻译: 在无线电处理控制(11)中,多个架构层(270,290,390)将多个任务(272)中的至少一个与另一任务(292)分离。 为了在(274,276,278)或跨(229,239)之间的任务之间通信,每个任务的缓冲器(300)由通信资源(602)提供。 用于将来自任务的信息的消息传递协议定义为具有在任何可选数据之前的报头(700)的预定义信息分组。 标题的标记部分(701)将信息指定为层内或中间层。 如果信息是中间层(229,239),则标题的标识符部分(703,704)标识信息的源(272),并且操作部分(702)标识操作码。