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The Program and System Information Protocol (PSIP) is the MPEG (Moving Picture Experts Group, a video and audio industry group) and privately defined program-specific information originally defined by General Instrument for the DigiCipher 2 system and later extended for the ATSC digital television system for carrying metadata about each channel ...
The PSI data as defined by ISO/IEC 13818-1 (MPEG-2 Part 1: Systems) includes four tables: PAT (Program Association Table) CAT (Conditional Access Table) PMT (Program Mapping Table) NIT (Network Information Table) The MPEG-2 specification does not specify the format of the CAT and NIT. PSI is carried in the form of a table structure.
The PSI protocols that support one-off delegation require the data owner to re-encode its data and send the encoded data to the server for each computation, e.g.,. [7] Those that support repeated delegation allow the data owners to upload their (encrypted) data to the server only once, and then re-use it many times for each computation carried ...
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A couple stands in front of The Carter Presidential Center's sign, after the death of former U.S. President Jimmy Carter at the age of 100, in Atlanta, Georgia on December 29, 2024.
The side-gig industry is still booming, but not all side gigs are created equal and not all people doing them make enough money to justify the time and effort involved. According to Self, just ...
[citation needed] Continuation of full-power analog broadcasting beyond this date was very unlikely, as stations had a financial incentive to shut down their analog transmitters as soon as possible, which consumed much more power than their digital replacements, and had incurred much higher costs running two transmitters for several years.
In the US, it's common for children to leave Santa Claus milk and cookies. But this tradition looks different for children around the world. In Ireland, some families leave Santa a pint of Guinness.