Inventor
MARKWITZ WERNHARD
9 patents
Patents
9 patentsUS5216715AJun 1, 1993
Key distribution in public communication networks taking account of security gradations
SIEMENS AG52 citations91
US3978408AAug 31, 1976
Circuit arrangement for selecting a diversity channel
SIEMENS AG40 citations88
US4578532AMar 25, 1986
Method and apparatus for code transmission
SIEMENS AG9 citations72
US4063174ADec 13, 1977
Circuit arrangement for diversity data transmission
SIEMENS AG17 citations70
US3983325ASep 28, 1976
Method of establishing synchronism between teletypewriter transmitter and teletypewriter receiver
SIEMENS AG9 citations70
US4627074ADec 2, 1986
Method and arrangement for transmitting characters
SIEMENS AG9 citations65
US4064459ADec 20, 1977
Method of automatically testing the serviceability of a data transmission system
SIEMENS AG11 citations65
US4317202AFeb 23, 1982
Circuit arrangement for correction of data
SIEMENS AG6 citations61
US4081789AMar 28, 1978
Switching arrangement for correcting the polarity of a data signal transmitted with a recurrent code
SIEMENS AG2 citations61