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公开(公告)号：AU8905891A
公开(公告)日：1992-01-23
申请号：AU8905891
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：BR9006928A
公开(公告)日：1991-10-08
申请号：BR9006928
申请日：1990-08-23
Applicant: MOTOROLA INC
Inventor： WHITE RICHARD E , BUCHHOLZ DALE R , JOHANSON LISA B , FREEBURG THOMAS A
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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公开(公告)号：CA2190300A1
公开(公告)日：1991-09-07
申请号：CA2190300
申请日：1991-03-01
Applicant: MOTOROLA INC
Inventor： FREEBURG THOMAS A
Abstract: There is provided a method of networking a satellite network and a terrestri al network. Information is communicated with a subscriber over the terrestrial network. A first portion of the information is communicated between a communications device of the terrestrial network and a first orbiting satellite of the satellite network over a first communication path. The information is handed-off such that a second portion of the information is communicated between the communications device and a second orbiting satellite of the satellite network over a second communication path .
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154.发明专利
公开(公告)号：PL288017A1
公开(公告)日：1991-08-26
申请号：PL28801790
申请日：1990-11-29
Applicant: MOTOROLA INC
Inventor： BERKEN JAMES J , FREEBURG THOMAS A , OGASAWARA ROY T , WHITE RICHARD E , MITZLAFF JAMES E , BEDLEK GREGORY J
Abstract: A wireless in-building telecommunications system for voice and data communications is disclosed having at least one node (101) arranged for linking to the PSTN (151) and at least one digital information source (153, 155, 157, 159) multiplicity of user modules (103) (UM's) linked to the node via a shared RF communications path (107). Each UM is coupled to a voice telephone instrument (127) and to one or more data terminals (165). The UM's communicate with the node by exchanging fast packets via the common RF path (107). The node also includes a fast-packet-switched mechanism controlled by a bandwidth allocating scheme to prevent collisions of packets as they are transmitted between the various units (101, 103) (nodes and/or user modules) that may be accessing the RF path (107). Also disclosed is a method for allocating the required bandwidth to each of the users of the common communications path in a wireless in-building telephone system. The invention 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. It also synchronizes the transfer of the data and the allocation of bus bandwidth.
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公开(公告)号：CS526990A2
公开(公告)日：1991-08-13
申请号：CS526990
申请日：1990-10-26
Applicant: MOTOROLA INC
Inventor： FREEBURG THOMAS A , WHITE RICHARD E , OGASAWARA ROY T , BEDLEK GEORGY J
IPC: H04L20060101 , H04L5/00
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Patent Agency Ranking
公开(公告)号：HU907687D0
公开(公告)日：1991-06-28
申请号：HU768790
申请日：1990-11-29
Applicant: MOTOROLA INC
Inventor： BERKEN JAMES J , FREEBURG THOMAS A , OGASAWARA ROY T , WHITE RICHARD E , MITZLAFF JAMES E , BEDLEK GREGORY J
Abstract: A wireless in-building telecommunications system for voice and data communications is disclosed having at least one node (101) arranged for linking to the PSTN (151) and at least one digital information source (153, 155, 157, 159) multiplicity of user modules (103) (UM's) linked to the node via a shared RF communications path (107). Each UM is coupled to a voice telephone instrument (127) and to one or more data terminals (165). The UM's communicate with the node by exchanging fast packets via the common RF path (107). The node also includes a fast-packet-switched mechanism controlled by a bandwidth allocating scheme to prevent collisions of packets as they are transmitted between the various units (101, 103) (nodes and/or user modules) that may be accessing the RF path (107). Also disclosed is a method for allocating the required bandwidth to each of the users of the common communications path in a wireless in-building telephone system. The invention 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. It also synchronizes the transfer of the data and the allocation of bus bandwidth.
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公开(公告)号：AU6524790A
公开(公告)日：1991-04-28
申请号：AU6524790
申请日：1990-08-23
Applicant: MOTOROLA INC
Inventor： WHITE RICHARD E , BUCHHOLZ DALE R , JOHANSON LISA B , FREEBURG THOMAS A
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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公开(公告)号：AU5448690A
公开(公告)日：1991-01-07
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：HU903265D0
公开(公告)日：1990-10-28
申请号：HU326590
申请日：1990-05-30
Applicant: MOTOROLA INC
Inventor： FREEBURG THOMAS A
Abstract: There is provided a scheme for bit error rate detection. It is characterised by: detecting the bit value present in a received multi-level signal (102), more narrowly detecting the bit value present in that received multi-level signal (104), comparing the results of narrow detection with the results detected otherwise to identify errors in detection (203, 206, 207 and 209), and accumulating detected symbol errors over unit time. Bit error rate detection can be used for antenna selection-selecting one of a plurality of diversity antennas when the error rate exceeds (213) a certain error threshold.
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公开(公告)号：BR8903479A
公开(公告)日：1990-03-06
申请号：BR8903479
申请日：1989-07-14
Applicant: MOTOROLA INC
Inventor： FREEBURG THOMAS A
Abstract: A communication system for relatively high data bit rate RF communication overcomes multipath interference by employing relatively narrow beam antenna sectors and by selecting the best communication path established between two terminals (110, 120), at least one of which has narrow beam antenna sectors (1-6). The communication path selection process includes determining the signal integrity (380) of data communicated between the terminals. One implementation includes the narrow beam antenna sectors (16 & A-F) at each terminal.
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