an3275sb Panasonic Corporation of North America, an3275sb Datasheet - Page 14

• Manufacturer Part Number: an3275sb
• Description: Cm Detection Ic For Vcrs In The North American Market
• Manufacturer: Panasonic Corporation of North America

AN3275SB
14
1) COMMERCIAL ADVANCE mode
2) MOVIE ADVANCE mode
3) CA-LITE mode
Description on COMMERCIAL ADVANCE:
a CM in the TV broadcasting in the North America and the rental video tapes so as to let a microcomputer recognize
a CM part by its algorithm in order to skip the CM automatically. This IC is designed for a black level detection of a
video signal and for no-sound detection.
There are the following three modes in the CA technology:
Reference
The COMMERCIAL ADVANCE technology is focused on detecting a black level existing between a program and
playback.
that the mark can be detected at the playback to erase the sound of the marked part and display a blue color on the
TV screen.
mode, the marking will be done and the commercial will be skipped from the next playback.
commercial promotions (preview) placed before a movie start and can move to a movie starting point. In this mode,
there are two modes available: one that skips all of a preview commercial and the other that stops skipping just
before a preview commercial, so that you can make a choice when you want to watch a preview commercial.
the Skip button, and when a commercial is skipped, the skipping process stops automatically. Since the end of the
commercial group is detected by software just after the last CM has passed, the VCR runs a reverse search for a
short time then returns to a normal play mode and starts a program again.
Once a program is recorded in this mode, its CM part is automatically identified and is skipped from the next
First it identifies the CM in recording the program, then puts a mark on the CM position on the video tape so
In the case that the tape not recorded in the commercial advance mode has been played back in this particular
The mode is used to play back the recorded rental video tape. You can automatically skip the commercials or
In any programs recorded by either way, the VCR enters into a FORWARD SEARCH mode if a user presses
ICs for VCR