Most video cable has been co-axial until recently. The cable has a center conductor with a screen around the outside. FOr a variety of reasons, this has been a very effective method of signal transmission and is still in use today with analog and many digital video signals. In the residential market, HDMI and DVI have moved away from the co-ax cable form. Both of them use several pairs of cable with each pair carrying a positive and a negative signal. This "balanced" or "double ended" transmission technique is very resistant to noise and allows high data rates to be used at low cost. Both DVI and HDMI use the same signal type on the same signals but HDMI also carries audio while DVI does not. Because DVI and HDMI cables use small multi-pin connectors, they are almost impossible to make up on site. This leaves the consumer and installer reliant on the output of commercial manufacturers. Prices for the cables are therefore significantly higher than many other types of cable, despite the very low cost of components. Media distribution companies like HDMI because it supports copy protection. We can expect to see HDMI become the standard video interconnect in the very near future.
A balanced coaxial cable
Technically . . . Yes. But it would all depend on the device pushing the signal to send the proper signals through the proper pins and the receiving device to recognize these signals on the same pins. The basic setup of this cable is just left and right audio signals, as well as video.
Generally it isn't possible to send two video signals on a single wire although there are instances where it can happen. Video over Ethernet allows multiple signals to be sent in packets although the nature of Ethernet means that the signals will each have a delay so synchronizing the signals may be difficult. Video over CAT5 uses converters that take a video signal and modify it to run over a single pair of a CAT5 cable. Normally, two more pairs would be used for stereo audio. If mono audio is used, it is possible to run two composite video signals with audio down one cable. Note that video over CAT5 uses the same cable as Ethernet but employs a very different signal format to Ethernet. Composite video signals use a single cable but in fact, the signal has three separate video components encoded into the signal. The signals are one for brightness and two for color information. Together they make up a full color signal and can be separated into the three components at the far end. Although the cable carries three signals, remember that they are all parts of the same color signal so this probably doesn't qualify as two signals. Finally, cable broadcasters use encoding systems to allow numerous signals to be carried on a single cable. The one that enters a house to supply a cable receiver carries many signals with just one being decoded and output by the receiver. This takes complex hardware at both ends so is outside the scope of most home users.
It can carry these signals, but a typical computer system uses different cables for these 2 types of information. Video in particular is very bandwidth heavy, so is rarely used in USB data.
The introduction of a new thought or idea.
Balanced
A balanced coaxial cable
a balanced coaxial cable
Causal signals are signals that are zero for all negative time, while anitcausal are signals that are zero for all positive time. Noncausal signals are signals that have nonzero values in both positive and negative time.A causal system (also known as a physical or nonanticipative system) is a system where the output depends on past and current inputs but not future inputs i.e. the output only depends on the input for values of .REF BY: http://cnx.org/content/m11495/latest/http://en.wikipedia.org/wiki/Causal_system
High range of frequency that carries the message signals in transmission of data.after receiving the signals, the detector seperate the message and carrier .
It isn't always. Baseband analog signals have no carrier.
Analog Carrier System is a transmission system that uses repeaters that compensate for analog medium impairments, and produce output signals that are linear-scaled versions of input signals. Analog carrier systems can carry speech, data, video and supervisory signals although they are best suited for speech signals.
You end up with 2 positive signals. No difference.
incoming signals to cell body are summated some signals are positive and some are negative ESPS cause voltage to become more positive making ti easier for the cell to fire ISPS cause voltage to become more negative so more difficult for cell to fire At any moment , cell body is bombarded with many thousands of positive and negative influences summation of inputs determines whether cell will fire an action potential :needs to exceed threshold
No, Directv programming signals are very different than a standard cable broadcast. Directv signals are sent using positive and negative charges to decode the signal.
The carrier waves are electromagnetic in nature, and it is the modulation of them that carries the information. There are several methods of modulation, FM, AM, Pulse-code, and many more. The digital signals are modulated on the carrier wave. And digital signals should theoretically be more immune to interference than analog ones.
when the messege and carrier signals are going through a modulator it mixes the two waves ie, it's acts like a mixer and amplified it and send the signals through the air ie its acts like an transmittter. the carrier wave carring the messege signal