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Tektronix delivers first continuous, real-time program quality of service monitor

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CIOL Bureau
New Update

BANGALORE, 20 August : Tektronix has introduced a

real-time, continuous monitoring solution for ensuring the quality of compressed digital

video. The PQM300 Program Quality of Service (QoS) Monitor gives providers of compressed

digital video the most effective way for managing image quality and efficiently allocating

bandwidth.

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The advent of digital television (DTV) and compressed signals requires broadcast,

satellite, cable and content providers to redefine how they evaluate program quality and

provide QoS assurance. The QM300 addresses DTV dynamics by allowing users to quickly

identify the most common visual impairments, including blockiness, frozen and repeated

frames, loss of service and Gaussian noise, before they become customer complaints.

"In the digital world, the interval between slight and catastrophic image

degradation is narrow and precipitous," said Mahendran, Corporate Manager- Marketing,

Tektronix India. "Due to the bursty nature of MPEG errors, sampled QoS assurance

systems cannot provide enough data to characterize image quality-only continuous

monitoring of all channels can yield this information," he further added.

Real Time, Continuous and Simultaneous Monitoring Assure QoS Tektronix' PQM300 monitors

all pixels and all fields continuously. In-service, continuous monitoring by the PQM300

assures that the most annoying picture defects are intercepted and logged for all

monitored programs. When the PQM300 identifies an image defect or impairment, it will

signal an alarm, identifying the channel on which the problem exists. It also allows users

to increase the number of channels as their monitoring needs change.

The PQM300 allows users to establish quality histories and defect logs for all

simultaneously monitored programs. These provide customers with highly valuable QoS

information. In contrast to today's technology, the PQM300 provides users a systematic and

quantifiable method for assigning bit rates to individual channels. Helping users

efficiently allocate their transmission bandwidth maximizes service capacity by reducing

the number of bits required per program, while maintaining acceptable levels of picture

quality.

Network Capabilities and Remote Operation for Centralized Monitoring PQM300 units can

be networked to provide centralized monitoring. The instrument supports

SNMP, a broadly

implemented network management protocol, to enable remote communications and prompt

response and display remote units as icons on a network monitoring workstation. The PQM300

also supports leading Web browsers to enable remote, convenient operation of multiple

units. These capabilities allow the PQM300 to provide monitoring capabilities for a

virtually unlimited number of channels in multiple locations.

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