The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2001
Filed:
Aug. 18, 1997
Applicant:
Inventors:
Heikki Kokkinen, Helsinki, FI;
Juha Pihlaja, Espoo, FI;
Assignee:
Nokia Technology GmbH, Pforzheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/08 ;
U.S. Cl.
CPC ...
H04J 1/08 ;
Abstract
In a digital cable television system or a Hybrid-Fiber-Cable (HFC) system at least two control channels (,) of the out-of-band type are arranged to control the same upstream data transmission channel (,), whereby their capacity can be combined in order realize downstream data transmission in parallel with downstream high capacity data transmission. Applied in the DAVIC system the overhead bits (,) of the SL-ESF frames (,) of the co-ordinated control channels, and the R-bytes (R1,to R8,) of the SL-ESF payload indicating to which channel the control is directed, are made identical.