munck@linus.UUCP (Robert Munck) (10/07/87)
Several of my Sony components (receiver, cassette deck, CD) allow for
some kind of interconnection to each other on their back panels, using
a thin twisted pair. There are two connections on each, allowing a
"daisy chain". I'd like to have my home computer (CoCo3 running OS9)
be able to control these components, and this interconnect could be
a good alternative to attaching an I/R LED to one of the CoCo's ports
and programming it to imitate the Remote Commander.
Does anyone know, or know where I can find out, the signal format
on that interconnect? I'd also be interested, for obvious reasons,
in the signal format of the I/R signals from the remote. Seems
likely that they'd be the same.
-- Bob Munck
-- munck@mitre-bedford.ARPA
-- {ihnp4, decvax,philabs}!linus!munck.UUCP
-- 617/271-3671psfales@ihlpe.ATT.COM (Pete Fales) (10/08/87)
In article <14770@linus.UUCP>, munck@linus.UUCP (Robert Munck) writes: > Several of my Sony components (receiver, cassette deck, CD) allow for > some kind of interconnection to each other on their back panels, using > a thin twisted pair. > > Does anyone know, or know where I can find out, the signal format > on that interconnect? I'd also be interested, for obvious reasons, > in the signal format of the I/R signals from the remote. Seems > likely that they'd be the same. Do you really need to know the signal format? I recently built a mult-device IR controller (similar to the one recently described in Byte magazine). No need to decode the format, just digitally "record" a sample of the signal and play it back. The Byte article describes the tricks to reducing this to a manageable volume of data. -- Peter Fales UUCP: ...ihnp4!ihlpe!psfales work: (312) 979-7784 AT&T Information Systems, IW 1Z-243 1100 E. Warrenville Rd., IL 60566
sjc@mtgzz.UUCP (s.j.comeau) (10/08/87)
I designed a device similar to the "Rabbit" remote control extender in functionality with the help of this book. It's got a chapter on the typical format of IR remote control signals and how they're transmitted and decoded. Lenk, John D., Complete Guide to Modern VCR Troubleshooting and Repair 1985, Prentice-Hall, Inc., Englewood Cliffs NJ 07632. -- * "Nothin' to tell now. Steve Comeau (AT&T, Middletown, NJ.) * Let the words be yours UUCP -> ihnp4!mtgzy!sjc * I'm done with mine." ARPA -> mtgzy!sjc@rutgers.rutgers.edu * Tel. (201)571-8853 (H), (201)957-5123 (W)