Sunnyvale, CA – Avinta Communications has announced receipt
of their first patent approval since the inception of the company in 1999. The
patent, numbered US 6,456,633 deals with the prioritizing of digital voice
transmissions, over data services, while using the same transmission medium.
As digital service enters a house, a specific amount of
bandwidth is available for use in both voice and data transmissions. Today, the
two would be "fighting" for service in the traditional CSMA/CD
(Carrier Sense Multiple Access/Collision Detection) mode. We would thus have to
deal with a poor quality of voice due to constant interference by the data
operations. According to the Avinta patented strategy, the system utilizes an
optimal mix of FDM (Frequency Division Multiplexing), TDMA (Time Division
Multiple Access), and CSMA/CD technologies, to guarantee voice transmission with
high quality, while data signals still receive acceptable services.
Voice channels and bandwidths will always have guaranteed
quality up to the amount of service available. The grade of data service may be
impacted by voice traffic volume, but can be controlled by simply reducing the
use of digital bandwidth for voice purposes. In other words, this is a system
with the primary goal of delivering voice communications, but it is extremely
flexible in its usage.
This unified digital multiplexing system is applicable to
transmission media with restricted channels. What this means is that even with
very limited bandwidth, a Dual Area Network (DAN) for integrated voice and data
can still be set up on power or telephone lines, allowing for maximized channel
Conventional digitized voice requires 64Kbps (Kilobits per
second) digital signal to deliver successful transmissions. With a technology
offering up to 10 MB of throughput, it has enough bandwidth to support up to 7
pairs of conversations occurring simultaneously over one single pair of phone
line. Significantly more voice channels can be allocated for transmission
technologies with high speed.
This technique can also maximize channel utilization of any
wide band transmission facility, such as radio wave, coaxial cable, or infrared
Avinta’s patent is a breakthrough considering the
dramatically increased quality of voice services that can be offered due to the
use of this technique. It will make digital voice lines more appealing to the
consumer sector, as it will be comparable to analog service. Voice
communications have traditionally been dependable, and Avinta has found a way to
migrate those important characteristics into the new age of digital technology.