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公开(公告)号:MX172939B
公开(公告)日:1994-01-24
申请号:MX2356590
申请日:1990-12-03
Applicant: MOTOROLA INC
Inventor: WHITE RICHARD E , CHANG HUNGKUN J , NOLAN MICHAEL P , FREEBURG THOMAS A , KACKZMARCZYK JOHN M , BUCHHOLZ DALE R
Abstract: In this invention a hierarchical addressing technique is employed in a packet communications system to enhance flexibility in handling packet information. This method permits packet message data (Fig. 3) and certain packet control data (Fig. 3) to be stored in memory locations (32, 34) without having to be duplicated at a different memory location prior to transmission of the packet. This method is preferably employed in a ring configuration in which a series of packets have addressing mechanisms which points sequentially to each other to form a ring of packets.
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公开(公告)号:HU9202844D0
公开(公告)日:1992-12-28
申请号:HU284492
申请日:1991-03-01
Applicant: MOTOROLA INC
Inventor: FREEBURG THOMAS A
Abstract: There is provided a mechanism for networking satellite and terrestrial networks. It comprises: maintaining subscriber-received power levels of terrestrial network transmissions about one order of magnitude above co-channel satellite transmissions to overcome interference and maintaining subscriber transmissions to terrestrial networks at power levels about one order of magnitude of the below co-channel transmissions to satellite networks to avoid causing interference at the satellite. Such power level maintenance is provided by the network in communication with such subscriber. Moreover, a non-orbiting ("grounded") satellite cooperates as a switching node of both the satellite network and a terrestrial network to relay information between a terrestrial subscriber and the satellite radiotelephone network over a terrestrial network. The terrestrial network and the satellite network may communicate via either the inter-satellite spectrum or the terrestrial-to-satellite spectrum.
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公开(公告)号:BR9105907A
公开(公告)日:1992-10-13
申请号:BR9105907
申请日:1991-09-25
Applicant: MOTOROLA INC
Inventor: FREEBURG THOMAS A , LEY JOHN , GERHARD WILLY
Abstract: An intelligent communcations node is capable of dynamically selecting frequency and time slot assignments for communications with remote communication devices having different communication protocols including different available frequencies and time slots in a TDMA system. A frequency agile transmitter and receiver combined with an adaptable time slot selector enables communications with remote devices utilizing different protocols. The time and frequency management capabilities of the node makes greater spectral efficiencies possible.
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公开(公告)号:MX9101459A
公开(公告)日:1992-06-05
申请号:MX9101459
申请日:1991-10-04
Applicant: MOTOROLA INC
Inventor: FREEBURG THOMAS A , GERHARDT WILLY , LEY JOHN
Abstract: An intelligent communcations node is capable of dynamically selecting frequency and time slot assignments for communications with remote communication devices having different communication protocols including different available frequencies and time slots in a TDMA system. A frequency agile transmitter and receiver combined with an adaptable time slot selector enables communications with remote devices utilizing different protocols. The time and frequency management capabilities of the node makes greater spectral efficiencies possible.
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公开(公告)号:HU205511B
公开(公告)日:1992-04-28
申请号:HU802990
申请日:1990-12-03
Applicant: MOTOROLA INC
Inventor: FREEBURG THOMAS A , KACZMARCZYK JOHN M , NOLAN MICHAEL P , BUCHHOLZ DALE R , WHITE RICHARD E , CHANG HUNGKUN J
Abstract: In this invention a hierarchical addressing technique is employed in a packet communications system to enhance flexibility in handling packet information. This method permits packet message data (Fig. 3) and certain packet control data (Fig. 3) to be stored in memory locations (32, 34) without having to be duplicated at a different memory location prior to transmission of the packet. This method is preferably employed in a ring configuration in which a series of packets have addressing mechanisms which points sequentially to each other to form a ring of packets.
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公开(公告)号:CS58291A3
公开(公告)日:1992-02-19
申请号:CS58291
申请日:1991-03-06
Applicant: MOTOROLA INC
Inventor: FREEBURG THOMAS A
Abstract: There is provided a mechanism for networking satellite and terrestrial networks. It comprises: maintaining subscriber-received power levels of terrestrial network transmissions about one order of magnitude above co-channel satellite transmissions to overcome interference and maintaining subscriber transmissions to terrestrial networks at power levels about one order of magnitude of the below co-channel transmissions to satellite networks to avoid causing interference at the satellite. Such power level maintenance is provided by the network in communication with such subscriber. Moreover, a non-orbiting ("grounded") satellite cooperates as a switching node of both the satellite network and a terrestrial network to relay information between a terrestrial subscriber and the satellite radiotelephone network over a terrestrial network. The terrestrial network and the satellite network may communicate via either the inter-satellite spectrum or the terrestrial-to-satellite spectrum.
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公开(公告)号:CS9005910A2
公开(公告)日:1991-10-15
申请号:CS591090
申请日:1990-11-28
Applicant: MOTOROLA INC
Inventor: BERKEN JAMES J , FREEBURG THOMAS A , OGASAWARA ROY T , WHITE RICHARD E , MITZLAFF JAMES E , BEDLEK GREGORY J
CPC classification number: H04B7/24 , H04J3/1682 , H04W4/04 , H04W72/0453 , H04W74/00
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公开(公告)号:AU613557B2
公开(公告)日:1991-08-01
申请号:AU5448690
申请日:1990-04-16
Applicant: MOTOROLA INC
Inventor: ROHRET PAUL J , FREEBURG THOMAS A , MUNIER SCOTT DALE
Abstract: An antenna is disclosed for increasing the gain of, or shaping the pattern of, a radiated radio frequency signal. The antenna includes a waveguide (10) for directing the radio frequency signal or for receiving directively the radio signal, a first conductive reflector (22) disposed beneath the waveguide and extending beyond the aperture (12) of the waveguide for reflecting certain of the waves emanating from or entering the aperture of the waveguide, and a second reflector (16) which may be the mounting surface, disposed beneath the first reflector and extending beyond the first reflector for reflecting other of the waves emanating from or entering the aperture of the waveguide.
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公开(公告)号:AU6600490A
公开(公告)日:1991-04-28
申请号:AU6600490
申请日:1990-08-23
Applicant: MOTOROLA INC
Inventor: OGASAWARA ROY T , WHITE RICHARD E , FREEBURG THOMAS A
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公开(公告)号:HU906258D0
公开(公告)日:1991-03-28
申请号:HU625890
申请日:1990-09-28
Applicant: MOTOROLA INC
Inventor: WHITE RICHARD E , BUCHHOLZ DALE R , JOHANSON LISA B , FREEBURG THOMAS A
IPC: H04L12/64
Abstract: A network interface architecture for a packet/fast packet switch is described. This architecture provides for the combination of both voice and data in a single switch using a common packet structure. It allows for the dynamic allocation of bandwidth based on system loading. This includes not only bandwidth within the voice or data areas of the frame, but also between the voice and data portions. The network interface (105) provides a means (101) of passing all packets through the Network Interface (105) or allowing the packet devices to directly transfer packets between one another. The bandwidth allocation can easily be changed because the control and data memories are synchronized to one another. The architecture allows for the data packets and the control of bandwidth allocation to be controlled by a single switching device. It synchronizes the transfer of the data and the allocation of bus bandwidth. The control of the packet devices can be controlled at a very high bit rate such as 40 Mbps. It allows packet devices to directly transfer packets. It allows for easy re-allocation of bandwidth through the use of the NI Base Registers.
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