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Hi: Does a device that performs the following conversions and modulations exist? If not, is it possible to construct? Prior to being superimposed on a carrier wave, a modulator signal has its alternating-current converted to direct-current of the same frequency, amperage, voltage, and wattage. What I mean by this is that before this AC-to-DC conversion, if graphed, the current will be seen going up from the x-axis [zero] to its peak, then down to x-axis, then below the x-axis to its negative peak, then back up to the x-axis. Both the positive and negative peaks are of equal distant from the x-axis. This is an AC cycle. After AC-DC conversion, if graphed the current goes from the x-axis to it=92s peak, then down to the x-axis, then back up to it=92s peak and then down to the x-axis again. As you can see, there is no longer any negative polarity. It goes from 0 to peak to 0 repeats. This is a DC cycle. Once again, both peaks are equally distant from the x-axis. After this is when the modulation occurs. During modulation, the carrier wave [also a DC current because it never goes below the x-axis] is affected by the modulator wave. The carrier=92s base frequency is zero Hz and its base amplitude is zero watts-per-square-meter. Base =3D without modulation When the modulator signal=92s frequency increases, the peak-to-peak amplitude of the carrier signal increases equivalent to the following manner: In numbers, the peak-to-peak amplitude [in watts-per-square- meter] of the carrier signal equates to the frequency of the modulator signal [Hz] When the modulator signal=92s frequency decreases, the peak-to-peak amplitude of the carrier signal decreases equivalent to the following manner: In numbers, the peak-to-peak amplitude [in watts-per-square- meter] of the carrier signal equates to the frequency of the modulator signal [Hz] When the modulator signal=92s peak-to-peak amplitude increases, the carrier=92s frequency increases such that =96 in numbers =96 the frequency of the carrier wave [in Hz] equates to the amplitude [in watts-per- square-meter] of the modulator wave. When the modulator signal=92s peak-to-peak amplitude decreases, the carrier=92s frequency decreases such that =96 in numbers =96 the frequency of the carrier wave [in Hz] equates to the amplitude [in watts-per- square-meter] of the modulator wave. During demodulation: When the carrier signal=92s frequency increases, the peak-to-peak amplitude of the demodulated modulator signal increases equivalent to the following manner: In numbers, the peak-to-peak amplitude [in watts- per-square-meter] of the demodulated modulator signal equates to the frequency of the carrier signal [Hz]. When the carrier signal=92s frequency decreases, the peak-to-peak amplitude of the demodulated modulator signal decreases equivalent to the following manner: In numbers, the peak-to-peak amplitude [in watts- per-square-meter] of the demodulated modulator signal equates to the frequency of the carrier signal [Hz]. When the carrier signal=92s peak-to-peak amplitude increases, the demodulated modulator signal=92s frequency increases such that =96 in numbers =96 the frequency of the demodulated modulator wave [in Hz] equates to the amplitude [in watts-per-square-meter] of the carrier wave When the carrier signal=92s peak-to-peak amplitude decreases, the demodulated modulator signal=92s frequency decreases such that =96 in numbers =96 the frequency of the demodulated modulator wave [in Hz] equates to the amplitude [in watts-per-square-meter] of the carrier wave Thanks
On May 7, 7:33=A0pm, GreenXenon <glucege...@gmail.com> wrote: <snip> > > When the carrier signal=92s peak-to-peak amplitude decreases, the > demodulated modulator signal=92s frequency decreases such that =96 in > numbers =96 the frequency of the demodulated modulator wave [in Hz] > equates to the amplitude [in watts-per-square-meter] of the carrier > wave > > Thanks Congratulations. It appears you've discovered 'radio'. Available wherever fine electronics is sold. G=B2
s...@yahoo.com wrote: > > Congratulations. It appears you've discovered 'radio'. Available > wherever fine electronics is sold. Please don't feed the 'radium' troll. -- You can't have a sense of humor, if you have no sense!
On May 7, 10:33=A0pm, GreenXenon <glucege...@gmail.com> wrote: > Hi: > > Does a device that performs the following conversions and modulations > exist? If not, is it possible to construct? > > Prior to being superimposed on a carrier wave, a modulator signal has > its alternating-current converted to direct-current of the same > frequency, amperage, voltage, and wattage. > > What I mean by this is that before this AC-to-DC conversion, if > graphed, the current will be seen going up from the x-axis [zero] to > its peak, then down to x-axis, then below the x-axis to its negative > peak, then back up to the x-axis. Both the positive and negative peaks > are of equal distant from the x-axis. This is an AC cycle. > > After AC-DC conversion, if graphed the current goes from the x-axis to > it=92s peak, then down to the x-axis, then back up to it=92s peak and the= n > down to the x-axis again. As you can see, there is no longer any > negative polarity. It goes from 0 to peak to 0 repeats. This is a DC > cycle. Once again, both peaks are equally distant from the x-axis. > > After this is when the modulation occurs. > > During modulation, the carrier wave [also a DC current because it > never goes below the x-axis] is affected by the modulator wave. The > carrier=92s base frequency is zero Hz and its base amplitude is zero > watts-per-square-meter. > > Base =3D without modulation > > When the modulator signal=92s frequency increases, the peak-to-peak > amplitude of the carrier signal increases equivalent to the following > manner: In numbers, the peak-to-peak amplitude [in watts-per-square- > meter] of the carrier signal equates to the frequency of the modulator > signal [Hz] > > When the modulator signal=92s frequency decreases, the peak-to-peak > amplitude of the carrier signal decreases equivalent to the following > manner: In numbers, the peak-to-peak amplitude [in watts-per-square- > meter] of the carrier signal equates to the frequency of the modulator > signal [Hz] > > When the modulator signal=92s peak-to-peak amplitude increases, the > carrier=92s frequency increases such that =96 in numbers =96 the frequenc= y > of the carrier wave [in Hz] equates to the amplitude [in watts-per- > square-meter] of the modulator wave. > > When the modulator signal=92s peak-to-peak amplitude decreases, the > carrier=92s frequency decreases such that =96 in numbers =96 the frequenc= y > of the carrier wave [in Hz] equates to the amplitude [in watts-per- > square-meter] of the modulator wave. > > During demodulation: > When the carrier signal=92s frequency increases, the peak-to-peak > amplitude of the demodulated modulator signal increases equivalent to > the following manner: In numbers, the peak-to-peak amplitude [in watts- > per-square-meter] of the demodulated modulator signal equates to the > frequency of the carrier signal [Hz]. > > When the carrier signal=92s frequency decreases, the peak-to-peak > amplitude of the demodulated modulator signal decreases equivalent to > the following manner: In numbers, the peak-to-peak amplitude [in watts- > per-square-meter] of the demodulated modulator signal equates to the > frequency of the carrier signal [Hz]. > > When the carrier signal=92s peak-to-peak amplitude increases, the > demodulated modulator signal=92s frequency increases such that =96 in > numbers =96 the frequency of the demodulated modulator wave [in Hz] > equates to the amplitude [in watts-per-square-meter] of the carrier > wave > > When the carrier signal=92s peak-to-peak amplitude decreases, the > demodulated modulator signal=92s frequency decreases such that =96 in > numbers =96 the frequency of the demodulated modulator wave [in Hz] > equates to the amplitude [in watts-per-square-meter] of the carrier > wave > > Thanks You appear to be describing voltage-to-frequency conversion (V2F) and its inverse, frequency-to-voltage conversion (F2V). Your modulator seems to perform both functions simultaneously - the frequency and amplitude of an input signal are encoded as the amplitude and frequency (respectively) of an output signal. The demodulator is just the opposite, which you might achieve by just exchanging the connections to a second "modulator". There are many ways to do this in practice. Why do you ask? -- Joe
On May 7, 10:33 pm, GreenXenon <glucege...@gmail.com> wrote: > Hi: > > Does a device that performs the following conversions and modulations > exist? If not, is it possible to construct? > > Prior to being superimposed on a carrier wave, a modulator signal has > its alternating-current converted to direct-current of the same > frequency, amperage, voltage, and wattage. Since direct current by defintion has no frequency, what you're asking for is not just impossible, the question makes no sense.
On May 8, 4:55 am, "J.A. Legris" <jaleg...@sympatico.ca> wrote: > You appear to be describing voltage-to-frequency conversion (V2F) and > its inverse, frequency-to-voltage conversion (F2V). Your modulator > seems to perform both functions simultaneously - the frequency and > amplitude of an input signal are encoded as the amplitude and > frequency (respectively) of an output signal. The demodulator is just > the opposite, which you might achieve by just exchanging the > connections to a second "modulator". > > There are many ways to do this in practice. Why do you ask? I think this device would be useful in generating a higher frequency signal from a bunch of lower frequency signals. For example, achieving a 10 Hz signal from ten 1 Hz signals.
a...@netzero.com wrote: > On May 7, 10:33 pm, GreenXenon <glucege...@gmail.com> wrote: >> Hi: >> >> Does a device that performs the following conversions and modulations >> exist? If not, is it possible to construct? >> >> Prior to being superimposed on a carrier wave, a modulator signal has >> its alternating-current converted to direct-current of the same >> frequency, amperage, voltage, and wattage. > > Since direct current by defintion has no frequency, what you're asking > for is not just impossible, the question makes no sense. People get confused between pulsed DC and AC -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.onetribe.me.uk/wordpress/?cat=5 - Our podcasts on weird stuff
On Thu, 07 May 2009 20:17:27 -0700, stratus46 wrote:
>
> Congratulations. It appears you've discovered 'radio'. Available
> wherever fine electronics is sold.
^^ are. The word "electronics" is a plural
noun.
Hope This Helps! ;-)
Rich
GreenXenon wrote: > Hi: > > Does a device that performs the following conversions and modulations > exist? If not, is it possible to construct? > > Prior to being superimposed on a carrier wave, a modulator signal has > its alternating-current converted to direct-current of the same > frequency, amperage, voltage, and wattage. > > What I mean by this is that before this AC-to-DC conversion, if > graphed, the current will be seen going up from the x-axis [zero] to > its peak, then down to x-axis, then below the x-axis to its negative > peak, then back up to the x-axis. Both the positive and negative peaks > are of equal distant from the x-axis. This is an AC cycle. > > After AC-DC conversion, if graphed the current goes from the x-axis to > it’s peak, then down to the x-axis, then back up to it’s peak and then > down to the x-axis again. As you can see, there is no longer any > negative polarity. It goes from 0 to peak to 0 repeats. This is a DC > cycle. Once again, both peaks are equally distant from the x-axis. > > After this is when the modulation occurs. > > During modulation, the carrier wave [also a DC current because it > never goes below the x-axis] is affected by the modulator wave. The > carrier’s base frequency is zero Hz and its base amplitude is zero > watts-per-square-meter. > > Base = without modulation > > When the modulator signal’s frequency increases, the peak-to-peak > amplitude of the carrier signal increases equivalent to the following > manner: In numbers, the peak-to-peak amplitude [in watts-per-square- > meter] of the carrier signal equates to the frequency of the modulator > signal [Hz] > > When the modulator signal’s frequency decreases, the peak-to-peak > amplitude of the carrier signal decreases equivalent to the following > manner: In numbers, the peak-to-peak amplitude [in watts-per-square- > meter] of the carrier signal equates to the frequency of the modulator > signal [Hz] > > When the modulator signal’s peak-to-peak amplitude increases, the > carrier’s frequency increases such that – in numbers – the frequency > of the carrier wave [in Hz] equates to the amplitude [in watts-per- > square-meter] of the modulator wave. > > When the modulator signal’s peak-to-peak amplitude decreases, the > carrier’s frequency decreases such that – in numbers – the frequency > of the carrier wave [in Hz] equates to the amplitude [in watts-per- > square-meter] of the modulator wave. > > During demodulation: > When the carrier signal’s frequency increases, the peak-to-peak > amplitude of the demodulated modulator signal increases equivalent to > the following manner: In numbers, the peak-to-peak amplitude [in watts- > per-square-meter] of the demodulated modulator signal equates to the > frequency of the carrier signal [Hz]. > > When the carrier signal’s frequency decreases, the peak-to-peak > amplitude of the demodulated modulator signal decreases equivalent to > the following manner: In numbers, the peak-to-peak amplitude [in watts- > per-square-meter] of the demodulated modulator signal equates to the > frequency of the carrier signal [Hz]. > > When the carrier signal’s peak-to-peak amplitude increases, the > demodulated modulator signal’s frequency increases such that – in > numbers – the frequency of the demodulated modulator wave [in Hz] > equates to the amplitude [in watts-per-square-meter] of the carrier > wave > > When the carrier signal’s peak-to-peak amplitude decreases, the > demodulated modulator signal’s frequency decreases such that – in > numbers – the frequency of the demodulated modulator wave [in Hz] > equates to the amplitude [in watts-per-square-meter] of the carrier > wave > > > Thanks THey call that a V TO F, F to V,. V = Voltage, Frequency. what you described is a Frequency to Voltage, and Back to Voltage to Frequency.. Both exist in the industrial world for doing things like converting encoder signals to analog and the other way. In the basic electronics, there are various ways to accomplish this. One common method is to use a PLL circuit. etc... Or did I miss understand that long tail? http://webpages.charter.net/jamie_5"
GreenXenon wrote:
> When the modulator signal’s peak-to-peak amplitude increases, the
> carrier’s frequency increases such that – in numbers – the frequency
> of the carrier wave [in Hz] equates to the amplitude [in watts-per-
> square-meter] of the modulator wave.
I think you're describing a voltage-controlled oscillator.
See "http://en.wikipedia.org/wiki/Voltage-controlled_oscillator"
Read that and then come back.
John Nagle