2011年8月3日星期三
What Are Bluetooth Headsets And Enhanced 2.4G Headphones
Most Bluetooth headsets and 2.4G headphones are utilized 2.4G frequency band for transmission, so from your wide feeling, each might be known as 2.4G frequency transmission, but given that the transport protocol, dividing into Bluetooth and 2.4 G.
Due to the fact Bluetooth utilizes the ISM that open up to all wireless band, so it couldn't stay clear of the signal interference from wireless, so the Bluetooth has created swiftly determine and reply to fast-hopping to method to wireless interference, including the ZONOKI Bluetooth Headset, which has divided the frequency band into a number of hopping channel, within a solitary connection, the radio transceiver based on a particular code sequence constantly from 1 channel " leap "to yet another channel, only the sender and receiver to converse is according to this regulation, as well as other interference cannot be interference from the exact same legislation; the instantaneous bandwidth of hopping is highly slim, but by way of spread spectrum technologies to create the slim bandwidth hundredfold enlargement into broadband, to ensure that interference consequences may perhaps turn into quite modest.
Furthermore, since the pace of standard Bluetooth transfer is gradual, only 1Mbps, whilst the CD-level sound transmission wants to attain 1.4Mbps, consequently standard Bluetooth can only remove high-frequency and lower frequency of new music, creating the sound broken. In see on the conventional Bluetooth transfer pace restrictions, enhanced Bluetooth 2.1 + EDR technologies arrived into getting, Bluetooth 2.1 + EDR technologies enables the velocity of transmission as much as about 3 occasions on the regular Bluetooth, upgrade to 2.1Mbps, totally meet the degree of the CD needs. this technologies is mirrored in N- B99.
For that 2.4G technologies, instead of Bluetooth technologies eliminates the troubles from the code, but additionally require a receiver. Through the transmission talent , 2.4G and Bluetooth are related. Furthermore, following enhancing 2.4G wireless technologies, with sixteen channels furthermore automated frequency-hopping technologies, can resolve the interference challenge. As an example, A headset using the receiver utilizing a channel, the outcomes of automated detection with the channel interference, it is going to immediately leap to yet another channel, to keep away from the exist interference. Meanwhile, headsets as well as the receiver use two-way communication technologies, which headphones deliver packets towards the receiver, the receiver also suggestions packets towards the headphone, in comparison with one another, screening no matter whether there is certainly packet decline there.
A lot more than several technologies that may make sure accuracy and timeliness of optimum 2.4G wireless transmission, coupled using the transmission pace of 2.4G attain to 2.0Mbps, is far higher compared to quantity of CD 1.4Mbps transmission requirements, in order that they could accomplish lossless information transmission.
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