Randy Hoffner

The book by Susan J. Douglas is part of the “Johns Hopkins Studies in the History of Technology” series.

To understand H.265, let's look at a little MPEG history, to see where it came from

A brief view on measurement gates and the loudness meter.

Or could it be the next Teletext?

Video of comparable quality can be compressed to a considerably lower bit rate, often claimed to be half the bit rate, of MPEG-2.

Although there is little equipment supporting it available, the interest in 1080p/60 as a future scanning format has been high enough to result in a SMPTE standard for an interface to accommodate it.

4:4:4, 4:2:2, 4:2:0 -- what do these numbers mean, and where did they come from?

A lot of television technology has come and gone since 1985, and we will take a quick look at some of the high points in those two decades.

Cable is frequently worse than broadcast for loud commercials and uneven commercial loudness. The worst, of course, is commercially-supported online TV.

We interrupt the series that has been running in this column on "ultra resolution," to bring you a message about what's going on in television today.

These people obviously don’t read my column, do they?

Currently, 1920x1080 is the HD video scanning format with the highest spatial resolution, but there are efforts underway to change this.

Perceived loudness, particularly of commercials, has been a problem and a complaint as long as commercial television has been with us.

Let's talk about silicon—semiconductors, that is.

Those who have been involved in the television industry for a while might remember that the first HDTV system to be commercialized was the Hi-Vision system.

You may be hearing about the demise of the venerable CRT, which has been the display device used in most of the TV sets we have watched since television became a commercial reality.