Patents by Inventor Stig W. L. Sjogren

Stig W. L. Sjogren 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).

  • Module for printed assemblies in a telecommunication system an apparatus for automatically putting the means on printed board assemblies newly inserted into the module into operation
    Patent number: 4596983
    Abstract: The invention relates to an apparatus for, in a printed board assembly module (1), which has room for a predetermined number of printed board assemblies having different types of controlled auxiliary means serving traffic-carrying means in a telecommunication system, automatically putting the auxiliary means on a printed board assembly newly inserted into an arbitrary place (KKP1-KKPn) within the module (1) into operation. Each printed board assembly is provided with a single type of auxiliary means, and the telecommunication system comprises a number of control logic units (SLU1-SLUm) corresponding to the number of different types of auxiliary means, for controlling the respective type of auxiliary means. In accordance with the invention, each printed board assembly is provided with an identifying unit for identifying the control logic unit which is to control the type of auxiliary means on the board in question.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: June 24, 1986
    Inventors: Stig W. L. Sjogren, Per-Martin Hedstrom