mbutts@mentor.com (Mike Butts) (10/28/89)
I wonder if the commercials on closed-captioned programs are captioned as well?
Perhaps the absence of captioning could be used to detect commercial breaks on
such programs. It must be much easier to just detect the presence of
captioning than to decode and display it, so such a device may be simple to
build.
--
Michael Butts, Research Engineer KC7IT 503-626-1302
Mentor Graphics Corp., 8500 SW Creekside Place, Beaverton, OR 97005
!{sequent,tessi,apollo}!mntgfx!mbutts mbutts@pdx.MENTOR.COM
Opinions are my own, not necessarily those of Mentor Graphics Corp.mbutts@mentor.com (Mike Butts) (10/28/89)
Are closed-captioned TV programs captioned during commercials? If not,
detecting lack of captioning might be a means of detecting commercial
breaks. It is probably much easier to detect presence or absence of
captioning than to decode and display it, so such a device might be
simple.
--
Michael Butts, Research Engineer KC7IT 503-626-1302
Mentor Graphics Corp., 8500 SW Creekside Place, Beaverton, OR 97005
!{sequent,tessi,apollo}!mntgfx!mbutts mbutts@pdx.MENTOR.COM
Opinions are my own, not necessarily those of Mentor Graphics Corp.jlemon@cory.Berkeley.EDU (Jonathan Lemon) (10/29/89)
In article <1989Oct27.234823.483@mentor.com> mbutts@mentor.com (Mike Butts) writes: >Are closed-captioned TV programs captioned during commercials? If not, >detecting lack of captioning might be a means of detecting commercial >breaks. It is probably much easier to detect presence or absence of >captioning than to decode and display it, so such a device might be >simple. Perhaps the device might be simple, but unfortunately quite a few commercials are also captioned. Even if this is not the case, the station that is re-broadcasting the signal generally always has the captioning carrier signal present all the time. This is used to display other information on the other sidebands (known as TEXT/C1/C2 on the decoder) which has such information as an up-to-date tv guide, or news reports. -- Jonathan ...ucbvax!cory!jlemon or jlemon@cory.Berkeley.EDU