Industry Patents
Patent: 4550276
Bus Structure for Multiscene Manual Lighting Consoles
(Click image for PDF of full patent)
| Patent Number: |
4550276 |
| Title: |
Bus Structure for Multiscene Manual Lighting Consoles |
| Abstract: |
In a lighting console which provides outputs to dimmers which include
master controls for at least two scenes and channel controls for each of a
plurality of channels with the channel controls including at least a first
and second scene preset potentiometer, the channel controls and master
controls cooperating to allow presetting, and which also includes a buss,
with one of the preset potentiometers for each of a plurality of the
channels connected to the buss and an output from the master controls
being used through suitable amplifiers to drive the buss, a plurality of
nondestructive current limiting fault isolating devices are provided for
each scene, each connected between the master and at least one of the
preset potentiometers for that scene. As a result, the effects of a fault
causing abnormal currents to flow which develops after the fault isolating
means will not disrupt the operation of channel potentiometers connected
to other fault isolating means. In addition, the console permits the
separation of the assignment selection of potentiometers and the
assignment indication of that selection. The console also includes
distributed multiplexing devices which reduces the back plane wiring
requirements in the console.
|
| Country of Issue: |
US |
| First Named Inventor: |
Callahan, Goddard |
| Assignee: |
|
| Continuation or Divisional of: |
|
| International Classification: |
H05B 37/00 |
| US Classification: |
315/312 |
| Issue Date: |
10-29-1985 |
| Filing Date: |
06-14-1982 |
| Application : |
388230 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
4550276 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
4550276 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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