Mohamed Ossama Mostafa, Age 36602 Wessex Way, Belmont, CA 94002

7065093, Jun 20, 2006

May 17, 2001

09/859865

Rajesh Kumar - Fremont CA, US
Mohamed Saad-Eldin Mostafa - Emerald Hills CA, US
John Gwilym Ellis - Pleasanton CA, US

Cisco Technology, Inc - San Jose CA

H04L 12/28

370401, 3703955

Methods and apparatus are disclosed for end-to-end ATM calls based on the interworking of ATM SVC signaling (such as private network-network interface signaling) with A. 2630. 1 AAL2 signaling. In one network, Q. 2630. 1 AAL2 signaling in the originating access segment triggers, on proper authentication, ATM SVC signaling (e. g. , PNNI, IISP, AINI, etc. ) in the core, which triggers Q. 2630. 1 AAL2 signaling in the terminating access segment. The triggering is done at the edge-core boundary where an AAL2 switch and/or multiplexer or an ATM switch with AAL2 multiplexing/switching capabilities is located. In the access network between the ATM-AAL2 edge switch and the edge gateway, multiplexed AAL2 virtual channel connections (VCCs) are typically used. Single-CID AAL2 SVCs are typically used in the core network, and between the ATM-AAL2 edge switch and PSTN trunk gateways. The binding of voice calls to ATM bearer channels is done at the edge gateway when triggered by a call agent.

7477638, Jan 13, 2009

Jul 3, 2001

09/899630

Rajesh Kumar - Fremont CA, US
Mohamed Saad-Eldin Mostafa - Emerald Hills CA, US

Cisco Technology, Inc. - San Jose CA

H04L 12/64

370356, 370401, 370466

A method for converting packet-based voice data of a first format directly to packet-based voice data of a second format, and vice versa. Data from networks using non-compatible packet-based voice technologies, for example, VoATM and VoIP, are interworked for direct conversion. Connection is set between an edge gateway of a first voice packet network, having data in a first format, and an interworking unit (IWU). Another connection is set between this IWU and an edge gateway of a second voice packet network, having data in the second format. The IWU is controlled by a single call agent that co-ordinates the conversion, at the IWU, between the two packet formats. Because it has this capability, this call agent is also called the “conversion server”. This call agent may be identical to the call agent used to control one or both edge gateways that use different packet based technologies.

7660317, Feb 9, 2010

Jun 20, 2006

11/472045

Rajesh Kumar - Fremont CA, US
Mohamed Saad-Eldin Mostafa - Emerald Hills CA, US
John Gwilym Ellis - Pleasanton CA, US

Cisco Technology, Inc. - San Jose CA

H04L 12/28

370401, 3703955, 37039551

Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, mechanisms, and means for establishing a call across a network. For example, the network may include a first edge switch, a second edge switch, and an ATM core network coupled to the first and the second edge switches and configured to allow the second edge switch to communicate with the first edge switch. The second edge switch, being responsive to a received Q. 2630. 1 AAL2 message, is configured to send a first Private Network-Network Interface (PNNI) setup message to the first edge switch as part of establishing a call between or through one or more of the first and the second edge switches.

7706278, Apr 27, 2010

Jan 24, 2007

11/626819

Daniel G. Wing - San Jose CA, US
Robert J. Biskner - Santa Barbara CA, US
Rajesh Kumar - Palo Alto CA, US
Mohamed S. Mostafa - Emerald Hills CA, US

Cisco Technology, Inc. - San Jose CA

H04J 3/14
H04L 1/00
H04L 12/26
H04L 12/56

370236, 370242, 370389, 370252

In one embodiment, a router examines an incoming packet for a flow monitoring request. The router may examine every packet for the flow monitoring request, or preferably may only examine packets including a lifetime value indicating that the packet should be dropped and not forwarded or may only examine packets having a predetermined message format. When the flow monitoring request is included, the router performs detailed flow analysis or other monitoring according to the flow monitoring request.

8639286, Jan 28, 2014

Dec 23, 2011

13/336423

Mohamed A. Mostafa - Santa Clara CA, US
Derek Shaeffer - Redwood City CA, US

Broadcom Corporation - Irvine CA

H04M 1/00

4555521, 455107

Systems and methods are provided for a broadband, closed-loop RF transmitter for multi-band applications that employs a single RF path to service multiple bands of operation. Embodiments of the present disclosure implement a broadband impedance matching module, which avoids the need for several costly and complex narrow-band matching networks. In an embodiment, the broadband impedance matching module includes concentric, mutually-coupled inductors. By adding this broadband impedance matching functionality, delay is significantly reduced because a single path can be used to service multiple bands.

2002018, Dec 5, 2002

Mar 19, 2002

10/102428

Mohamed Mostafa - Santa Clara CA, US
Sherif Embabi - Plano TX, US
Moderage Fernando - Plano TX, US
Wing Chan - Allen TX, US
Charles Gore - McKinney TX, US

Texas Instruments Incorporated - Dallas TX

H04L027/06

375/316000

A subsampling receiver () for converting an RF signal to baseband is disclosed. The subsampling receiver () may be implemented into a wireless communications device (), such as a wireless telephone handset. In one disclosed embodiment, the receiver () includes a sample and hold circuit () that samples a bandpass filtered input modulated signal at the subsampling frequency (f) that is well below the RF carrier frequency but twice the bandwidth (BW) of the payload; the sampled signal is digitized, and applied to two digital mixers (I, Q) to produce in-phase and quadrature components (I,Q) of the payload. In another embodiment, the receiver () includes two sample and hold circuits (I, Q) to sample the filtered signal at different phases of the sampling frequency, to produce the in-phase and quadrature digital components. In a third embodiment, the receiver () includes an analog mixer () to downconvert the RF input to an intermediate frequency, prior to digitization and digital mixing at quadrature phase.

2012025, Oct 4, 2012

Mar 31, 2011

13/076694

Louay Jalloul - Santa Clara CA, US
Mohamed Mostafa - Santa Clara CA, US

H03D 3/24
H04W 4/00

370328, 375376

A method and system are provided in which a device comprising a first or main phase locked loop (PLL) and a second or reference PLL, is operable to communicate utilizing a first and a second receiving antenna. The first PLL may generate a first signal based on a reference signal generated by the second PLL. A second signal may also be generated based on the reference signal. Data associated with a first radio access technology (RAT) may be received via the first receiving antenna utilizing the generated first signal. The first RAT or another RAT may be scanned via the second receiving antenna utilizing the generated second signal. The scan via the second receiving antenna may be performed concurrently with the reception of data via the first receiving antenna. A switch may be utilized to enable or disable scanning operations via the second receiving antenna.

2012027, Oct 25, 2012

Apr 20, 2012

13/452756

Sriraman DAKSHINAMURTHY - San Jose CA, US
Mohamed Mostafa - Santa Clara CA, US
Derek Shaeffer - Redwood City CA, US
Dennis Pu - Redwood CA, US
Peter Capofreddi - Pine Grove Mills PA, US

Broadcom Corporation - Irvine CA

H04B 17/00
H03G 3/00

4551151

Embodiments of the present disclosure provide systems and methods for estimating gain and phase error in a wireless transmitter. Embodiments of the present disclosure provide a gain and phase controller that uses a digital gain and phase estimator to jointly estimate both gain and phase. The forward and feedback signals of a wireless transmitter are digitized using analog to digital (ADC) converters. The digital signals are correlated with each other to dynamically extract gain and phase estimates of the loop. The gain and phase estimates are used to correct gain and phase errors in the wireless transmitter.