Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 User Guide
Analog Output Content Protection
Description
Support
Macrovision - Discourages VCR recording of composite and RF
analog outputs by changing information in the vertical and
horizontal blanking intervals. When Macrovision-encoded outputs
are recorded, the recording is distorted on playback.
analog outputs by changing information in the vertical and
horizontal blanking intervals. When Macrovision-encoded outputs
are recorded, the recording is distorted on playback.
DHCTs with analog outputs
CIT (Constrained Image Trigger) - Reduces the effective
resolution that is less than 520k pixels. This is accomplished by
band-limiting the video, rather than shrinking the image.
resolution that is less than 520k pixels. This is accomplished by
band-limiting the video, rather than shrinking the image.
Cable service providers may enable image constraint by asserting
the CIT bit (in CCI). This reduces the quality of recordings made
on the component analog output.
the CIT bit (in CCI). This reduces the quality of recordings made
on the component analog output.
HD DHCTs
Page 639