Abstract: A redundant transmission system including two transmitters with respective data paths, the transmitters including packet creators and selectors wherein one transmitter can serve as a master and alternately as a slave while the other transmitter serves to maintain among the two transmitters one master and one slave.
Abstract: An asynchronous switching system and method for processing data streams, the system and method utilizing one or more buffers for cleaning up an output of a dirty switch.
Abstract: A method for adding Time Marker Packets, TMPs, comprising Metadata to an MPEG-2 transport stream transmitted via a broadcast network for providing a deterministic transport stream, comprising providing feeds of data from at least one source, where the feeds comprise payload packets being referenced by a common 1 PPS reference, and where the feeds are input to at least one multiplexer, MUX; providing Time Marker Packets, TMPs, as input to each multiplexer, where each TMP comprises a plurality of time stamps per second measured relative to said 1 PPS reference, and each TMP has a value representing an Absolute Program Clock Reference, APCR, at the time of transmission, where the APCR is based on the Epoch time, and where the TMP packet further comprises PCR, OPCR locked to said 1 PPS and UTC leap seconds.
Type:
Grant
Filed:
June 17, 2016
Date of Patent:
May 18, 2021
Assignee:
Nevion AS
Inventors:
Helge Stephansen, Bjørn Tommy Jensen, Anders Dale
Abstract: An asynchronous switching system and method for processing SDI data streams, the system and method utilizing one or more buffers for cleaning up an output of a dirty IP switch.
Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.
Abstract: A method for adding Time Marker Packets, TMPs, comprising Metadata to an MPEG-2 transport stream transmitted via a broadcast network for providing a deterministic transport stream, comprising providing feeds of data from at least one source, where the feeds comprise payload packets being referenced by a common 1 PPS reference, and where the feeds are input to at least one multiplexer, MUX; providing Time Marker Packets, TMPs, as input to each multiplexer, where each TMP comprises a plurality of time stamps per second measured relative to said 1 PPS reference, and each TMP has a value representing an Absolute Program Clock Reference, APCR, at the time of transmission, where the APCR is based on the Epoch time, and where the TMP packet further comprises PCR, OPCR locked to said 1 PPS and UTC leap seconds.
Type:
Application
Filed:
June 17, 2016
Publication date:
October 24, 2019
Applicant:
Nevion AS
Inventors:
Helge STEPHANSEN, Bjørn Tommy JENSEN, Anders DALE
Abstract: An asynchronous switching system and method for processing SDI data streams, the system and method utilizing one or more buffers for cleaning up an output of a dirty IP switch.