Technical Considerations For Operating Systems Expanded To Fifty Or More Television Channels (1980)

By Michael F. Jeffers, Jerrold Division General Instrument Corporation

Phase Lock and Sync Lock are tools that can be used to reduce distortion and favorably change the subjective appearance of the interference seen in the background of a television channel. The use of these tools allows systems carrying fifty or more channels to serve the same geographical area formerly limited to thirty-five channel distribution. Effects of Cross Modulation and Composite Triple Beat will be discussed, and it will be proven that the Triple Beat mechanism is the predominant source of distortion. The phase-lock technique will be explained analytically showing the mechanism which causes the subjective transition of distortion from low frequency beats to sliding video frames. The report will also discuss further additional improvements in system tolerance using sync-lock and sync suppression.

By clicking the "Download Paper" button, you are agreeing to our terms and conditions.

Similar Papers

Technical Considerations For Operating Systems Expanded To Fifty Or More Television Channels
By Michael F. Jeffers, Jerrold Division General Instrument Corporation
1980
Best Frequency Assignments For Mid And Super Band Channels
By Michael F. Jeffers, Jerrold Electronics Corporation
1970
Consumer Software Services Via Cable Television Systems
By Charles L. Dages, Jerrold Division General Instrument Corporation
1980
Hard Encrypted Video And Audio Television System
By Michael F. Jeffers, Joseph B. Glaab And John T. Griffin, General Instrument Corporation
1986
Jerrold Datachannel - The Optimal Information Delivery Technology For Cable
By Kenneth L. Coleman, Jerrold Division General Instrument Corporation
1980
The Impact Of Multichannel TV Sound On The Cable System Headend
By Thomas R. Stutz, Jerrold Distribution Systems Division General Instrument Corporation
1985
General Purpose Computers For Cable Television Systems
By Raymond E. Daly IV, Federal Communications Commission
1977
Future Trends and Specifications of Community Systems and Equipment
By Ken Simons, Jerrold Electronics Corporation
1964
400 MHz CATV System Performance Studies
By Dieter B. Brauer and Harry J. Reichert Jr., Jerrold Division General Instrument Corporation
1981
Controlled Subjective Testing Of Cable System Impairments To Picture Quality Using Psychofhysical Methods
By Michael F. Jeffers, Jerrold Communications
1990
More Results >>