Patents by Inventor Curt Danell

Curt Danell 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).

  • Method for transmitting pictures at a picture telephone transmission having limited bandwidth
    Patent number: 3976831
    Abstract: The present invention relates to a method for transmitting stationary pictures via a picture telephone transmission having limited bandwidth. Both fields of the picture are in the transmitter side divided into a number of line groups. In the first field, certain picture elements in one group are sampled and stored in a buffer memory in the transmitter and the rest of the line groups in the field are scanned without the sampling of further elements. After that, the second field is scanned in similar manner. The transmission of the stored values of the sampled elements are transmitted with a rate determined by the bandwidth of the transmission media and during the time when the rest of the line groups in the field are scanned.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: August 24, 1976
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Curt Danell, Bo Gunnar Holmer, Peder Magnus Rodhe