Patents by Inventor Horst Ohnsorge

Horst Ohnsorge has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5630209
    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.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: May 13, 1997
    Assignee: Alcatel Sel Aktiengesellschaft
    Inventors: Manfred Wizgall, Axel Kuttner, Horst Ohnsorge
  • Patent number: 5502586
    Abstract: A fiber-optic network has a branching net in which only three optical waveguides are interconnected at each of a plurality of active or passive branch points (A, B). The branch points are designed to permit bidirectional transmission in each of three paths. Subscriber facilities (F) are connected or connectable to the optical waveguides of the network at arbitrary points. To increase reliability, a fiber-optic ring main (50) is provided to which the ends of the optical waveguides forming a branching net are connectable via controllable optical switches (D).
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: March 26, 1996
    Assignee: Alcatel SEL Aktiengesellschaft
    Inventor: Horst Ohnsorge
  • Patent number: 5485504
    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.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: January 16, 1996
    Assignee: Alcatel N.V.
    Inventor: Horst Ohnsorge
  • Patent number: 5337175
    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.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: August 9, 1994
    Assignee: Alcatel N.V.
    Inventors: Horst Ohnsorge, Adolf Weygang, Rolf Heidemann
  • Patent number: 4955014
    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.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: September 4, 1990
    Assignee: Alcatel N.V.
    Inventors: Dieter Kuppers, Klaus Herse, Kate Hiepe-Wohlleben, Manfred Kaiser, Friedemann Mohr, Horst Ohnsorge
  • Patent number: 4726010
    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.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: February 16, 1988
    Assignee: Standard Elektrik Lorenz AG
    Inventors: Amar Ali, Horst Ohnsorge
  • Patent number: 4686667
    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.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: August 11, 1987
    Assignee: Standard Electrik Lorenz AG
    Inventor: Horst Ohnsorge
  • Patent number: 4134071
    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.
    Type: Grant
    Filed: July 19, 1971
    Date of Patent: January 9, 1979
    Assignee: Licentia Patent-Verwaltungs-G.m.b.H.
    Inventor: Horst Ohnsorge