SSMA Data transmission system
    1.
    发明授权
    SSMA Data transmission system 失效
    SSMA数据传输系统

    公开(公告)号:US4134071A

    公开(公告)日:1979-01-09

    申请号:US164077

    申请日:1971-07-19

    Applicant: Horst Ohnsorge

    Inventor: Horst Ohnsorge

    CPC classification number: H04B7/216 H04B1/707

    Abstract: In an SSMA data transmission system in which each binary information signal (k.sub.ij) is multiplied with a binary address a.sub.i (t-j T) having Z binary digits and is transmitted after being modulated onto a carrier oscillation signal cos (.omega..sub.i t), the effective signal-to-noise ratio for the desired received signal is improved by providing each receiver station, e. g., the m.sup.th receiver station, with means for reproducing the transmitted data-functions k.sub.i (t) by k.sub.i *(t) of at least one of the stations i.noteq. m by correlation of the received total signal f.sub.e (t) byg*a.sub.i (t) =a.sub.i * (t-j T-.tau..sub.i *) cos (.omega..sub.i * t-.phi..sub.i *)and formingf.sub.i *(t) = K.sub.i *(t) .multidot. a.sub.i *(t-jT-.tau..sub.i. * ) cos (.omega..sub.i *t-.phi..sub.i *);means for subtracting each of the thus reproduced transmitting functions from the received mixture signal f.sub.e (t) to produce a derived received signal f.sub.e *(t); and means for determining the desired data sequence K.sub.m *(t) by correlating only the signal f.sub.e *(t) with the address g*a.sub.m (t) for the m.sup.th station.

    Abstract translation: 在其中每个二进制信息信号(kij)与具有Z个二进制数字的二进制地址ai(tj T)相乘并且在被调制到载波振荡信号cos(ωωit)之后被发送的SSMA数据传输系统中,有效信号 通过提供每个接收机站来提高所需接收信号的噪声比,例如, 具有用于通过将接收到的总信号fe(t)与G相关联来再现至少一个站i的等式m的发送数据的传输数据功能ki(t)ki(t)的装置的第m个接收机站 * AI(T)= AI *(TJ T tau i *)cos(ωi * t-phi i *)AND FORMING FI *(T)= Ki *(t)x ai *(t-jT-τi *)cos(ωi * t-phi i *); 意图将收到的混合信号FE(T)中的每个复制的发送功能分配给生成衍生的接收信号FE *(T); 以及通过仅将信号fe *(t)与第m个站的地址g * am(t)相关联来确定所希望的数据序列Km *(t)的手段。

    Broadband integrated subscriber loop system
    2.
    发明授权
    Broadband integrated subscriber loop system 失效
    宽带综合用户回路系统

    公开(公告)号:US4686667A

    公开(公告)日:1987-08-11

    申请号:US697314

    申请日:1985-02-01

    Applicant: Horst Ohnsorge

    Inventor: Horst Ohnsorge

    CPC classification number: H04Q11/0478 H04J2203/0028 H04J2203/0089

    Abstract: A broadband integrated subscriber loop system is provided in accordance with the teachings of the present invention. A system is provided in which the subscribers are combined in groups (T1n1-T1n10) each of which is supplied via a single optical communication link. Over the optical waveguide (LWL) of this optical communication link, signals of the channels assigned to subscribers for various telecommunication services are transmitted on a multiplexed basis from the switching unit to an interface unit closely located to the subscribers of the group. In the interface unit the channels are separated and subscriber-assigned multiplexers (Mux 5) combine the channels assigned to a subscriber in accordance with the transmission capacity required into a subscriber time-division-multiplex signal. This signal is transmitted over a subscriber line in the form of a coaxial electric line (KL 1) to subscriber's taps, where the signals for terminals located at the top are separated via demultiplexers (Demux 3, Demux 4, Demux 5, Demux 6). Signals to be transmitted from a subscriber's terminals to the switching unit are combined in digital form (Mux 2, Mux 3, Mux 4), and a multiplexer (Mux 1) in the interface unit combines signals from all subscribers of the group into a back-channel multiplex signal which is transmitted to the switching unit over an optical communication link using the same or a second optical waveguide. In the switching unit, a demultiplexer (Demux 1) separates the received signals into the signals from the individual subscribers, and the signals of each subscriber are split up according to the subscriber's various telecommunications services. The system, including the terminals, is fully digital.

    Abstract translation: 根据本发明的教导提供了宽带综合用户环路系统。 提供了一种系统,其中用户被组合成组(T1n1-T1n10),每个组经由单个光通信链路提供。 在该光通信链路的光波导(LWL)上,分配给用于各种电信业务的用户的信道的信号在多路复用的基础上从切换单元发送到紧密地位于组的用户的接口单元。 在接口单元中,信道被分离,用户分配多路复用器(Mux 5)根据用户时分复用信号所需的传输容量组合分配给用户的信道。 该信号以同轴电线(KL 1)的形式通过用户线路发送到订户的抽头,其中位于顶部的终端的信号通过解复用器(Demux 3,Demux 4,Demux 5,Demux 6)分离, 。 从用户终端发送到交换单元的信号以数字形式(MUX2,MUX3,MUX4)组合,并且接口单元中的多路复用器(MUX1)将来自该组的所有用户的信号组合到后面 信道复用信号,其通过使用相同或第二光波导的光通信链路发送到切换单元。 在切换单元中,解复用器(Demux1)将接收到的信号分离成来自各个用户的信号,并且每个用户的信号根据用户的各种电信服务被分离。 包括终端在内的系统是完全数字化的。

    Optical communications system for the subscriber area with optical
amplifiers
    3.
    发明授权
    Optical communications system for the subscriber area with optical amplifiers 失效
    光通信系统,用于具有光放大器的用户区

    公开(公告)号:US5337175A

    公开(公告)日:1994-08-09

    申请号:US833935

    申请日:1992-02-11

    Abstract: Optical communications system for the subscriber area with optical amplifiers.The system according to the invention is used to distribute information signals, particularly telephone signals, from a center to a plurality of subscribers and to make possible a bidirectional transmission of telephone and data signals between the center and the subscribers. According to the invention, the network used for this purpose is a multistar fiber-optic network in which fiber-optic amplifiers (10, 11) are present between successive branch points. The information signals to be distributed are transmitted via the fiber-optic network with a first wavelength (.lambda..sub.1) to the subscribers, and the subscriber-specific information signals to be transmitted from the center (1) to the subscribers (T.sub.i) are converted by frequency modulation to a different frequency band (FB.sub.2) than the distribution signals (by frequency modulation) and transmitted to the subscribers at the same wavelength as the distribution signals, and the subscriber-specific signals to be transmitted from the subscribers (T.sub.i) to the center (1) are converted by frequency modulation to another frequency band (FB.sub.3) and are transmitted optically to the center with a second wavelength (.lambda..sub.2). This optical signal is amplified at suitable points (A) and several alternative embodiments for this amplification are indicated.

    Abstract translation: 光通信系统,用于具有光放大器的用户区。 根据本发明的系统用于从中心向多个用户分发信息信号,特别是电话信号,并且可以在中心和订户之间双向传输电话和数据信号。 根据本发明,用于此目的的网络是其中光纤放大器(10,11)存在于连续分支点之间的多光纤网络。 要分配的信息信号经由具有第一波长(λ1)的光纤网络发送给用户,并且将从中心(1)发送到用户(Ti)的用户专用信息信号被转换 通过频率调制到与分配信号(通过频率调制)不同的频带(FB2)并且以与分配信号相同的波长发送给用户,以及要从用户(Ti)发送的用户特定信号到 中心(1)通过频率调制转换为另一个频带(FB3),并以第二波长(λ2)光学传输到中心。 该光信号在合适的点(A)被放大,并且指出了用于该扩增的若干备选实施例。

    Optical communication system in the subscriber loop
    4.
    发明授权
    Optical communication system in the subscriber loop 失效
    用户环路中的光通信系统

    公开(公告)号:US4726010A

    公开(公告)日:1988-02-16

    申请号:US833641

    申请日:1986-02-25

    Abstract: The invention relates to an optical communication system for transmitting subscriber-assigned information in both directions between a center (1) and a plurality of subscribers (3ato 3n), particularly to the subscriber loop of a broadband communication system. In a remote distribution facility which is of either distributed (FIG. 1) or lumped (FIG. 2) design, the optical waveguides (5ato 5n) of a group of subscribers living or working near each other are coupled to a common optical waveguide (4) (or to two common optical waveguides) connected to the center (1). Subscriber-assigned signals to be transmitted from the center to the subscribers are combined into an electric time-division-multiplex signal which is transmitted as an optical signal with a single wavelength (.lambda..sub.o) to the vicinity of the subscribers and distributed to the latter. From the electric time-division-multiplex signal, each of the subscribers takes only the signal intended for him. The signals to be transmitted from the subscribers to the center are transmitted as optical signals with subscriber-assigned wavelengths (.lambda..sub.l to .lambda..sub.n ) through subscriber-as-signed optical waveguides to the common optical waveguide (4), are coupled into the latter, and are transmitted as a wavelength-division-multiplex signal to the center.

    Abstract translation: 本发明涉及一种用于在中心(1)和多个用户(3ato 3n)之间的两个方向上发送用户分配的信息的光通信系统,特别涉及宽带通信系统的用户环路。 在分布式(图1)或集总(图2)设计的远程分配设施中,彼此靠近或相互靠近的一组用户的光波导(5ato 5n)耦合到公共光波导( 4)(或连接到两个公共光波导)连接到中心(1)。 要从中心发送到用户的订户分配信号被组合成电时分多路复用信号,该电时分多路复用信号作为具有单个波长(λo)的光信号发送到用户附近并分发给用户 。 根据电时分多路复用信号,每个用户仅接收到他的信号。 要从用户发送到中心的信号作为具有订户分配的波长(λ1到λn)的光信号通过订户签名的光波导发送到公共光波导(4),被耦合到后者 并作为波分复用信号发送到中心。

    Emergency call system
    5.
    发明授权
    Emergency call system 失效
    紧急呼叫系统

    公开(公告)号:US5630209A

    公开(公告)日:1997-05-13

    申请号:US253741

    申请日:1994-06-03

    CPC classification number: H04M11/04 G08B25/016 H04W4/22 H04W76/007

    Abstract: An emergency call system includes a wireless telecommunication network having predetermined radio channels, at least one wireless emergency call transmission device for reading emergency data and transmitting the data in an emergency call message on at least one of the radio channels, and at least one emergency call receiver device. The at least one emergency call receiver device receives and evaluates the emergency call message, and triggers at least one alarm function and/or further conducts the emergency data to an alarm center connected to the wireless telecommunication network. The system may also be embodied in a wire-bound network.

    Abstract translation: 紧急呼叫系统包括具有预定无线电信道的无线电信网络,用于在至少一个无线电信道上读取紧急数据和发送紧急呼叫消息中的数据的至少一个无线紧急呼叫传输装置,以及至少一个紧急呼叫 接收机设备。 所述至少一个紧急呼叫接收装置接收并评估紧急呼叫消息,并触发至少一个报警功能和/或进一步将紧急数据传送到连接到无线电信网络的报警中心。 系统也可以体现在有线网络中。

    Hand-held radiotelephone with video transmission and display
    7.
    发明授权
    Hand-held radiotelephone with video transmission and display 失效
    手持式无线电话,带视频传输和显示

    公开(公告)号:US5485504A

    公开(公告)日:1996-01-16

    申请号:US366429

    申请日:1994-12-30

    Applicant: Horst Ohnsorge

    Inventor: Horst Ohnsorge

    Abstract: A radiotelephone device has a telephone handset-shaped housing for hand-held operation. The device includes electroacoustic transducers mounted at sound apertures in the housing, a keypad mounted between the apertures, and electronic circuitry. Video communication is accomplished by a video camera mounted in the housing and connected with the electronic circuitry and a liquid crystal display device mounted in the housing and connected to the electronic circuitry. Thus a radiotelephone is equipped with a video pickup device and a video display device.

    Abstract translation: 无线电话设备具有用于手持操作的电话听筒形外壳。 该装置包括安装在壳体中的声孔处的电声换能器,安装在孔之间的键盘和电子电路。 视频通信由安装在壳体中并与电子电路连接的摄像机和安装在壳体中并连接到电子电路的液晶显示装置完成。 因此,无线电话机配备有视频拾取装置和视频显示装置。

    Broadband optical communication system, particularly in the subscriber
area
    8.
    发明授权
    Broadband optical communication system, particularly in the subscriber area 失效
    宽带光通信系统,特别是在用户区

    公开(公告)号:US4955014A

    公开(公告)日:1990-09-04

    申请号:US115254

    申请日:1987-10-30

    CPC classification number: H04B10/2581 G02B6/4212 H04B10/2503 H04Q11/0001

    Abstract: For short-distance communication systems, particularly for optical-waveguide links in the subscriber area, it is proposed to operate the standard single-mode optical waveguide for long-distance applications, which is optimized for the wavelength range from 1300 nm to 1600 nm, with optical transmitters and optical receivers whose operating wavelengths lie clearly below the cutoff wavelength of the optical waveguide. By means of a suitable stable laser-waveguide coupling, it is ensured that single-mode operation is achieved, which is necessary to transmit digital signals at high bit rates. The increased loss of the optical waveguide at 800 nm can be accepted because of the relatively short length of subscriber lines. Both unidirectional and bidirectional transmission over a single optical waveguide using wavelength-division or modal multiplexing is possible.

    Abstract translation: 对于短距离通信系统,特别是对于用户区域中的光波导链路,建议对长距离应用的标准单模光波导进行操作,其针对1300nm至1600nm的波长范围进行优化, 其光发射机和光接收机的工作波长明显低于光波导的截止波长。 通过合适的稳定的激光波导耦合,确保实现单模操作,这是以高比特率传输数字信号所必需的。 由于用户线路的长度相对较短,可以接受800nm处的光波导的增加的损耗。 使用波分复用或模式复用的单个光波导上的单向和双向传输都是可能的。

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