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| 1. A '''back-channel''' in a ] system typically is a low-speed or less-than-optimal transmission channel opposite to the main channel's direction. The system is ] in that the communication is not the same speed or capacity in both directions - the back-channel being the subservient or lower speed/capacity direction. | |||
| ==In telecommunications== | |||
| A '''back-channel''' in an ] ]s system is typically a low-speed or less-than-optimal transmission channel opposite to the main channel's direction. | |||
| ⚫ | An example of this is in ] where "A" stands for "asymmetric", and the channel from the subscriber to the supplier (], is slower and may be of less capacity than the channel from the supplier to the subscriber. | ||
| ⚫ | In many cases the back-channel is used mostly for ]s of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort |
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| ⚫ | In many cases, the back-channel is used mostly for ]s of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort). | ||
| === Examples === | |||
| ⚫ | ] where "A" stands for "asymmetric", and the channel from the |
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| ==In diplomacy== | |||
| A '''back-channel''' in the language of ] is an unofficial channel of ] between ]s or other political entities, used to supplement official channels, often for the purposes of discussing highly sensitive policy issues. | |||
| ==In linguistics== | |||
| In ], '''back-channeling''' is the practice of giving positive comments, such as "uh-huh" or "yes" to the other speaker, to encourage further talk or to confirm that one is listening. | |||
| Back-channeling is very common in ], and is said to be used more often by female speakers of ] than male ones. | |||
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Revision as of 19:00, 19 February 2005
In telecommunications
A back-channel in an asymmetric telecommunications system is typically a low-speed or less-than-optimal transmission channel opposite to the main channel's direction.
An example of this is in ADSL where "A" stands for "asymmetric", and the channel from the subscriber to the supplier (ISP, is slower and may be of less capacity than the channel from the supplier to the subscriber.
In many cases, the back-channel is used mostly for acknowlegements of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort).
In diplomacy
A back-channel in the language of diplomacy is an unofficial channel of communication between states or other political entities, used to supplement official channels, often for the purposes of discussing highly sensitive policy issues.
In linguistics
In linguistics, back-channeling is the practice of giving positive comments, such as "uh-huh" or "yes" to the other speaker, to encourage further talk or to confirm that one is listening.
Back-channeling is very common in Japanese, and is said to be used more often by female speakers of English than male ones.
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