High scanning rate to standard scanning rate television signal converter with smooth moving edge conversion

Apparatus for converting a high speed television signal to a reference scanning frequency, said reference scanning frequency defining reference field intervals, said high speed television signal including odd and even fields and having a scanning frequency N times greater than said reference scanning frequency, where N is an odd integer, comprising:

• first memory means for storing an odd field of said high speed television signal in accordance with a first write signal and for reading out the stored odd field in accordance with a first read signal;
• second memory means for storing an even field of said high speed television signal in accordance with a second write signal and for reading out the stored even field in accordance with a second read signal;
• and
• control means for generating one of said first and second write signals during a terminating 1/N interval of a first reference field interval, for generating the other of said first and second write signals during an initial 1/N interval of a second reference field interval, for generating one of said first and second read signals during said second reference field interval, and for generating the other of said first and second read signals during a third reference field interval.

Apparatus for converting a scanning rate of a television signal including fields, a marker signal at a standard scanning rate, and having a scanning rate N times greater than said standard scanning rate, where N is an integer, comprising:

• memory means for storing at least one field of said television signal in accordance with a write signal and for reading out the stored at least one field at said standard scanning rate in accordance with a read signal;
• means for detecting said marker signal;
• and
• control means for generating said write and read signals as a function of the detection of said marker signal.