1
Ramandeep Ahuja
Ramandeep Ahuja, Mario F Derango, Surender Kumar: Method of dynamic management of a virtual local area network (VLAN) in a wireless ad hoc network. Motorola, Terri S Hughes, Valerie M Davis, May 27, 2008: US07379443 (3 worldwide citation)

In a wireless ad hoc network comprising a plurality of nodes (102), when a method of the present invention determines that a source node and a destination node belong to a common virtual local area network (VLAN), information is routed to the destination node using only nodes that belong to the comm ...


2
Randy Ekl
Joseph E Phillips, Mario F Derango, Randy L Ekl, Michael H Retzer: Method for preserving wireless resources in a wireless local area network. Motorola, Randi L Karpinia, Indira Saladi, January 30, 2007: US07170868 (1 worldwide citation)

In one embodiment of the present invention, an access point (111) receives a multicast packet intended for a particular multicast group. Upon receipt, the access point only rebroadcast the multicast packet over a wireless segment if it determines that there is at least one wireless subscriber unit ( ...


3
Ramandeep Ahuja
Ramandeep Ahuja, Narayanan Venkitaraman, Mario F Derango, Surender Kumar, Anthony R Metke, Vidya Narayanan: Method and device for transmitting data packets. Motorola, Motorola, July 10, 2008: US20080165786-A1

A method for transmitting a packet from a transmitting node to a destination node in a communication network can enable improved network efficiency. The method includes receiving and storing identification information concerning at least one foreign node that is directly reachable in the communicati ...


4
Randy Ekl
Stephen L Kuffner, Ramy S Ayoub, John M Belcea, Gregory J Buchwald, Lynn D Dann, Mario F Derango, Lawrence M Ecklund, Randy L Ekl, Michael S Johnson, S David Silk: Communications system for exchanging spectrum sensing measurements through a drop box and method of using same. Motorola, Motorola, October 1, 2009: US20090245119-A1

A communications system and method for exchanging spectrum usage information through a drop box (100) includes one or more central stations (101) that defines a region of operation. A central drop box (102) is associated with the central station (101) for providing a database of spectrum usage infor ...


5
Mark Shaughnessy, James E Mathis, Surender Kumar, Bhavesh G Patel, Mario F DeRango: Wireless communication system incorporating multicast addressing and method for use. Motorola, Susan L Lukasik, October 31, 2000: US06141347 (107 worldwide citation)

A wireless communication system 200 comprises a connectionless packet network 201 coupled to a plurality of sites 203-208 that are in wireless communication with a plurality of subscriber units 210-217 logically arranged into a plurality of talk groups having corresponding talk group identifications ...


6
Kenneth P Weiss, Mario F DeRango, Daniel R Schroeder, Leslie D Mutz, Brian W Lacy, Mark D Chapman: Transceiver self-diagnostic testing apparatus and method. Motorola, Darleen J Stockley, August 9, 1994: US05337316 (50 worldwide citation)

The present invention includes an apparatus and a method for transceiver self-diagnostic testing in a communication system. A feedback unit (228, 326) is utilized that allows performance of a loopback test independent of a transmit frequency to receive frequency difference without undue proliferatio ...


7
Mario F Derango, John W Maher, Russell A Marten: Method for pre-establishing communications in a wireless communication network. Christopher P Moreno, June 2, 1998: US05761193 (34 worldwide citation)

Network access delays are minimized by using affiliation messages to pre-establish communications in a wireless communication network (100). In a first embodiment, connections between a site and a multicast server are not pre-assigned. A controller (102), upon receiving an affiliation message from a ...


8
Mario F Derango, John W Maher, Russell A Marten: Method for pre-establishing communications in a wireless communication network without the use of a multicast server. Motorola, Steven R Santema, December 5, 2000: US06157843 (21 worldwide citation)

Network access delays are minimized by using affiliation messages to pre-establish communications in a wireless communication network (100). A controller (102), upon receiving an affiliation message from a first site (104), establishes connections between the first site and a second site (105), the ...


9
Mario F DeRango, Richard L Bennett: Method for repeaters to adaptively digitally code received analog information. Motorola, Timothy W Markison, Steven G Parmelee, August 23, 1994: US05341398 (9 worldwide citation)

Adaptive digital coding of received analog information based on signal strength can be accomplished in the following manner. Once a repeater receives analog information from a communication unit, the signal quality of the received analog information is determined. Next the signal quality of the rece ...


10
David P Helm, Mario F Derango: Determination of an initial launch time in a simulcast communication system. Motorola, Christopher P Moreno, October 14, 1997: US05678193 (8 worldwide citation)

A simulcast controller 201 receives a communication request at a current time. A preliminary launch time equivalent to the sum of the current time plus a predetermined offset value (401) is calculated along with a difference between the preliminary launch time and a transmission conclusion time (402 ...



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