Broadcast studio synchronization distribution system and method
US6069666A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for distribution of a clock signal of a new timing reference which may employ an existing NTSC distribution network present in a conventional NTSC studio. NTSC-compliant horizontal, vertical, or other composite synchronization signals are generated from an HDTV primary reference clock, and are synchronized and locked to the HDTV primary reference, for distribution over the existing NTSC distribution network. HDTV studio components receive the horizontal, vertical, or other composite synchronization signals and generate a local HDTV clock signal using a phase-locked loop frequency synthesizer. The signal generated by the phase-locked loop frequency synthesizer is synchronized and locked to the HDTV primary reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.