Article View: comp.multimedia
Article #1669Computer Controlled LDPs (Was: ISA card, software compatible with MMotion?)
From: David S. Browning
Date: Fri, 22 Jan 1993 00:13
Date: Fri, 22 Jan 1993 00:13
58 lines
4048 bytes
4048 bytes
In article <C0x1rB.4z2@mentor.cc.purdue.edu>, tmp@mentor.cc.purdue.edu (Tom Putnam) writes: |> In <C0tBLJ.IFH@news.cso.uiuc.edu> amead@s.psych.uiuc.edu (Alan Mead) writes: |> |> We have an application that manipulates video from a videodisc player |> |> by issueing commands through INT 0x7f to the MMotion Control Program on |> |> PS/2s. I've heard that there is a ISA architecture card that is 100% |> |> compatible. (Ie, would allow my application to run without |> |> alteration). |> |> |> |> If anyone has heard of such a beast -- or, better yet, used it -- |> There is a card which is mostly M-Motion compatible from a small |> Florida company called 21Tech Corporation (an offshoot of |> DynaByte). It is called the School Board. We have recently |> started using it in a chemistry lab with the videodisk-based |> "Comprehensive Chemistry Curriculum" developed by Stan Smith at the |> University of Illinois. So far, it seems to be working fine. |> It is an ISA bus card and works with anything from a low-end 286 on |> up. I think they designed it to work in IBM PS/2 model 25 as a |> low-cost alternative to the higher PS/2 models. The education |> price is $876 including software, compared to $1,350 last time I |> looked at educ. prices for IBM's M-Motion card. Excuse my ignorance. I'm about to assemble a multimedia presentation system, in which a PC controls a LaserDisc Player and various displays and devices, such as lights and motors. The "action" is coordinated with the video presentation, hence the computer must control the LDP. Is this what the M-Motion and 21Tech cards do? I know of another card, the Bravado from TrueVision (an AT&T spinoff?) which does this (supposedly -- I've only seen sales literature), and has many features similar to the 21Tech card Tom describes. Does anyone out there have experience doing this type of thing? The video output from the LDP would go directly to a big dedicated monitor, so I don't need any video capturing or editing capabilities. In particular, I'm looking at the Sony MDP-1100. This seems to be Sony's entry-level LDP with an RS232C interface. I don't know anything about the command interface (yet). I read another post where someone said Pioneer had ftp-able driver software for their computer-controlled LDPs. This may be a good reason to get a Pioneer! (If the LDP control is easy enough to do "by hand", maybe I don't need the Bravado-or-equivalent card. On the other hand, it would be convenient during development to capture the output of the LDP in a window, and wait until the last minute to get the LDP display monitor.) Again, if anyone has experience with computer-controlled LDPs, with or without the cards we've talked about, I'd like to hear from you. Thanks! -- David |============================================================================| | Internet: browning@willard.nas.nasa.gov Phone: (415) 604-4321 | | UUCP: uunet!ames!nas.nasa.gov!browning | |----------------------------------------------------------------------------| |"the nice thing about true hopelessness is that you don't have to try again"| | -- jules shear | |============================================================================|
Technical Details
Message-ID:
<1993Jan22.001338.23153@nas.nasa.gov>Path:
arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!ames!eos!data.nas.nasa.gov!willard.nas.nasa.gov!browningReferences:
<C0tBLJ.IFH@news.cso.uiuc.edu> <C0x1rB.4z2@mentor.cc.purdue.edu>Show Full Headers
Complete Article Headers
Newsgroups: comp.multimedia,comp.ivideodisc Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!ames!eos!data.nas.nasa.gov!willard.nas.nasa.gov!browning From: browning@willard.nas.nasa.gov (David S. Browning) Subject: Computer Controlled LDPs (Was: ISA card, software compatible with MMotion?) Followup-To: comp.multimedia References: <C0tBLJ.IFH@news.cso.uiuc.edu> <C0x1rB.4z2@mentor.cc.purdue.edu> Sender: news@nas.nasa.gov (News Administrator) Organization: NAS Program, NASA Ames Research Center, Moffett Field, CA Date: Fri, 22 Jan 93 00:13:38 GMT Message-ID: <1993Jan22.001338.23153@nas.nasa.gov> Reply-To: browning@willard.nas.nasa.gov Lines: 58