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El-Hennawey
Mohamed El-Hennawey, Kanata CA
| Patent application number | Description | Published |
|---|---|---|
| 20080212567 | Method And Apparatus For Non-Intrusive Single-Ended Voice Quality Assessment In Voip - An apparatus ( | 09-04-2008 |
Mohamed S. El-Hennawey, Belleville CA
| Patent application number | Description | Published |
|---|---|---|
| 20100232314 | NON-INTRUSIVE MONITORING OF QUALITY LEVELS FOR VOICE COMMUNICATIONS OVER A PACKET-BASED NETWORK - Provided is a method and apparatus for objectively and non-intrusively measuring voice quality on live calls without disrupting the call session or the network. A communication system includes plural communities each including a switch that controls access to a packet-based data network for call sessions. Each of the communities is coupled to the data network by respective packet-based trunks. Quality of service (QoS) monitoring devices are coupled to the respective packet-based trunks to monitor quality levels of routes between any two given communities. Each QoS monitoring device receives packets containing streaming data (which may be actual packets or test packets). From the received packets, the QoS monitoring device can derive QoS parameters, particularly for audio and speech signals on live calls without disrupting the call session. | 09-16-2010 |
Mohamed Samy El-Hennawey, Belleville CA
| Patent application number | Description | Published |
|---|---|---|
| 20100111074 | Transcoders and mixers for Voice-over-IP conferencing - Transcoders and mixers having reduced algorithmic delay and processing complexity. An improved mixer for signals having encoded speech parameters wherein the parameters obtained through decoding are used by a parameter estimator to improve the encoding by providing a parameter estimate for the mixed signal. In the case of pitch parameters, the mixer uses the principle of strong-pitch-domination. The mixing of wideband signals is simplified by performing mixing of individual lower and upper sub-bands. A transcoder and a mixer that converts a wideband signal into a narrowband signal relies upon high frequency suppression. A transcoder and a mixer that converts a narrowband signal into a wideband signal relies upon filter combination. | 05-06-2010 |