Richard Clark wrote:
Cecil Moore wrote:
I know that but am I the only person in the world who has
noticed that it is now being used on automobiles?

Just as I figured.... another sucker ball.

Zero probability that you simply misunderstood my original
question? Did you know it is now being used on automobiles?
--
73, Cecil http://www.qsl.net/w5dxp


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On Thu, 06 Jan 2005 12:49:36 -0600, Cecil Moore
wrote:
Zero probability that you simply misunderstood my original question?
More to the point, did you? Aside from its sucker spin, then why ask?
Did you know it is now being used on automobiles?
LEDs have been in general illumination for quite a few years - even
for headlights. If they are new to you, you can't afford them.

Richard Clark wrote:
LEDs have been in general illumination for quite a few years - even
for headlights.

I know that. The question was and is: WHEN DID THEY START
TIME MULTIPLEXING AUTOMOBILE TAILLIGHTS? I am asking for
information and it's perfectly OK if you don't know.

Constant current LEDs have been in use for years. But it's
just over the last couple of months that I have noticed
the pulse-width modulation on some automobile taillights.
I suspect it's only one or two manufacturers so far.
--
73, Cecil http://www.qsl.net/w5dxp


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On Thu, 06 Jan 2005 13:30:37 -0600, Cecil Moore
wrote:
WHEN DID THEY START TIME MULTIPLEXING AUTOMOBILE TAILLIGHTS?
Who is THEY? This still sounds like a sucker posting.
Anyway, 5 years ago. Why don't you try rec.philosophy.automotive for
this topic?

Richard Clark wrote:

Cecil Moore wrote:
WHEN DID THEY START TIME MULTIPLEXING AUTOMOBILE TAILLIGHTS?

Who is THEY?

Shirley, you jest.

Anyway, 5 years ago.

Doubt it. I would have noticed long before now.
--
73, Cecil http://www.qsl.net/w5dxp


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On Thu, 06 Jan 2005 14:30:24 -0600, Cecil Moore wrote:
Richard Clark wrote:
Cecil Moore wrote:
WHEN DID THEY START TIME MULTIPLEXING AUTOMOBILE TAILLIGHTS?

Who is THEY?

Shirley, you jest.

Anyway, 5 years ago.

Doubt it. I would have noticed long before now.

Do you mean that the subliminal CW messages have had no effect on you? :-)

Jonesy
--
| Marvin L Jones | jonz | W3DHJ | linux
| Gunnison, Colorado | @ | Jonesy | OS/2 __
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On 6 Jan 2005 22:37:03 GMT, Allodoxaphobia
wrote:
Doubt it. I would have noticed long before now.
Do you mean that the subliminal CW messages have had no effect on you? :-)

Hi Jonesy,

Like I figured, another sucker posting. Cadillac was doing this for
its 2000 model:

" The 2000 Cadillac DeVille was the first vehicle to go into
production that utilizes HB LEDs for its rear combination lamps
(RCLs) as well as for its CHMSL. Many of the benefits here are
intangible-examples are the "jewel like" appearance of the RCL and
the ability to provide the tail light function with a particular
shape associated with the DeVille line. There are several tangible
benefits that can be measured, however, including reduced
electrical load, reduced mass, warranty savings, and mass
production quality improvements.

Although the Cadillac DeVille is the only production vehicle with
a complete LED rear combination lamp assembly, several other
recent car makes and models have incorporated LEDs into various
signal functions. These are primarily limited production luxury
cars, such as the Mercedes S-Class, BMW 5-Series, and Nissan
Gloria."

On the Lincoln Town Car:

"light-emitting diode array on the rear of this vehicle in a
research project at California Partners for Advanced Transit and
Highways takes data from the wheels and brakes and sends a signal
to following cars indicating the acceleration and velocity of the
vehicle."

which, of course, fulfills your anticipation of subliminal CW
messages. ;-)

As the old adage goes "if you have to ask, you can't afford it."
rec.philosophy.automotive may provide more details - this is clearly
beyond the pale of electromagnetic anything from anywhere.

73's
Richard Clark, KB7QHC