Patents by Inventor Richard A. Comroe
Richard A. Comroe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7245933Abstract: In accordance with the preferred embodiment of the present invention all remote units (113–118) participating in a group call can actively transmit uplink communications to their respective base stations (101–102) via low-data rate traffic channels (103–108). The remote units having the highest transmit energies are summed and broadcast to all remote units (113–118) participating in the group call. Because only those remote units having the highest transmit energies are summed and broadcast, network congestion is greatly reduced.Type: GrantFiled: March 1, 2000Date of Patent: July 17, 2007Assignee: Motorola, Inc.Inventors: ShaoWei Pan, Jinzhong Zhang, Chunyang Meng, Hechun Cai, Richard A Comroe
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Patent number: 7010315Abstract: During a group call, each remote unit (113–118) receives a downlink supplemental transmission (109–110) that contains high-speed data (e.g., video). A single supplemental channel is utilized for each base station (101–102). On the uplink side, the supplemental channel is shared among all remote units, however only one remote unit (113–118) is allowed to transmit at a time utilizing the uplink supplemental channel. A decision is made as to which remote unit is providing a highest-voice-energy fundamental channel uplink, and that remote unit is assigned the uplink supplemental channel. The remote unit, that is currently transmitting utilizing the uplink supplemental channel, has its transmission broadcast (via downlink supplemental channels (109–110)) to all other remote units participating in the multicast.Type: GrantFiled: March 1, 2000Date of Patent: March 7, 2006Assignee: Motorola, Inc.Inventors: ShaoWei Pan, Jinzhong Zhang, Chunyang Meng, Hechun Cai, Richard A. Comroe
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Patent number: 6005848Abstract: In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-group (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound code (416-417). The entire talkgroup is assigned an outbound code (415). Members of the sub-group may simultaneously transmit voice information (410-411) using the at least one inbound code, which voice information is summed (412) and re-transmitted to the talkgroup using the outbound code. Subscriber units in the talkgroup, but not included in the sub-group, are allowed to transmit voice information only after requesting, and receiving, an additional inbound code.Type: GrantFiled: October 27, 1997Date of Patent: December 21, 1999Assignee: Motorola, Inc.Inventors: Gary W. Grube, Richard A. Comroe
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Patent number: 5987022Abstract: A data communication system employs a method (400) for transmitting packetized data (100) using a combination of well known transmission techniques, such as TCP/IP and a novel compression process. A message type identifier (300) for the packet to be transmitted is first identified, which identifier comprises a packet type identifier (113) and a protocol identifier (114). The packet type identifier (113) distinguishes between control information and user information in the data packet. The packet is then selectively encoded (407, 411) using either a first or a second header compression technique, depending on the packet type identifier (113) and the protocol identifier (114). In this manner, an improved packet transmission scheme is envisaged, which gives a reliable solution for data transmission in a noisy RF environment and/or a bandwidth-limited environment.Type: GrantFiled: December 27, 1996Date of Patent: November 16, 1999Assignee: Motorola, Inc.Inventors: Robert L. Geiger, Kenneth J. Crisler, Michael J. Crowley, Richard A. Comroe
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Patent number: 5553315Abstract: A bulletin board coordinates the service authorization for other communication systems. Service authorizations are periodically updated, with authorized communication units returning to the bulletin board at pre-scheduled times to receive the updates that extend service authorization for authorized communication services. The bulletin board transmits authorization information on known communication resources at predetermined times known only by authorized communication units.Type: GrantFiled: November 8, 1994Date of Patent: September 3, 1996Assignee: Motorola, Inc.Inventors: Arun Sobti, Richard A. Comroe
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Patent number: 5425030Abstract: A method of allowing use of small, low-power communication systems (20) within the coverage area (11) of larger trunked communication systems. A low-power communication system re-uses the same communication resources used by the larger trunked system whenever sufficient distance exists between large system communication units and the low power system so as to avoid interference. Large system communication units may also be constructed to operate in a dual mode format so as to transmit and receive in a low power mode and on re-used resources, whenever near a low power system or to transmit and receive in a high power mode whenever else necessary.Type: GrantFiled: November 12, 1991Date of Patent: June 13, 1995Assignee: Motorola Inc.Inventors: Richard A. Comroe, Arun Sobti, Paul M. Bocci, Robert W. Furtaw, Bradley M. Hiben, James A. McDonald, Robert W. Furtaw
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Patent number: 5363371Abstract: A system is described for providing ISDN services on a PSTN to communication units from an ISDN interface within a resource controller. The communication unit is allowed access to a target such as a subscriber within the PSTN or a communication unit in another cell, in an ISDN environment through entry of a target access number. The ISDN environment may be changed by the communication unit before entry of a target ID number.Type: GrantFiled: November 9, 1992Date of Patent: November 8, 1994Assignee: Motorola, Inc.Inventors: Asim K. Roy, Richard A. Comroe, Robert W. Furtaw
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Patent number: 5355367Abstract: Within a communication system having a plurality of communication system sites, each communication system site has a one cell re-use pattern of a limited number of communication resources. Communication units within the communication system utilize a redundant transmission of information such that the geographic separation of communication system sites utilizing the same communication resources is reduced.Type: GrantFiled: January 2, 1990Date of Patent: October 11, 1994Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Arun Sobti, John E. Major
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Patent number: 5313654Abstract: In a geographic region that contains a trunking communication system and a cellular communication system, wherein the coverage area of each system substantially overlaps, a method that transfers a private call from the trunking communication system to the cellular communication is disclosed. When a communication unit initiates a private call in the trunking communication system, it transfers its affiliation from the trunking communication system to the cellular communication system. Once affiliated with the cellular communication, the private call is placed to the second communication unit. The trunking communication system detects the private call and instructs a second communication unit to transfer its affiliation to the cellular communication system. Once both communication units are affiliated with the cellular communication system, the private call is conducted. Once the private call ends, both communication units transfer their affiliation back to the trunking communication system.Type: GrantFiled: November 5, 1990Date of Patent: May 17, 1994Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Gary W. Grube
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Patent number: 5301359Abstract: A bulletin board communication resource provides a message to communication units regarding available communication systems in a particular geographic area. The bulletin board resource also supports registration of the communication unit with one or more of these systems as selected by the communication unit.Type: GrantFiled: March 9, 1993Date of Patent: April 5, 1994Assignee: Motorola, Inc.Inventors: Anthony P. Van den Heuvel, Richard A. Comroe, Arun Sobti, Anthony J. Sarli, Jr.
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Patent number: 5278536Abstract: A network (2) utilizing power conductor distribution and incorporating infra-red (IR) radiation nodes having IR transducers (4, 6, 8). The IR transducers are located in ceiling-mounted lighting fixtures (16, 18, 20) and are connected to power terminals in the lighting fixtures both for powering the IR transducers in operation and for communicating network information. The transducers are thus positioned optimally for good IR communication and require no additional cabling.Type: GrantFiled: January 2, 1991Date of Patent: January 11, 1994Assignee: Motorola, Inc.Inventors: Robert W. Furtaw, Richard A. Comroe, Bradley M. Hiben
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Patent number: 5260943Abstract: A subscriber makes its hand-off decision based on time difference measurements between synchronization markers received from adjacent repeaters relative to the synchronization markers received from the subscriber's assigned repeater. The subscriber uses signal quality measurements to identify candidate repeaters with adequate signal level, and the time difference measurements to decide which of these repeaters is geographically closest. Thus, the subscriber unit makes hand-off decisions as its movement closes the distance to an adjacent repeater that can provide an adequate signal level.Type: GrantFiled: June 16, 1992Date of Patent: November 9, 1993Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Robert W. Furtaw
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Patent number: 5247701Abstract: Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system compares the transferred values with a threshold and when the threshold is exceeded, reuses the communication resources under a TDM format within the small system.Type: GrantFiled: June 29, 1990Date of Patent: September 21, 1993Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Arun Sobti, Paul M. Bocci, Robert W. Furtaw, Bradley M. Hiben, James A. McDonald
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Patent number: 5239674Abstract: In a geographic region that contains a trunking communication system and a cellular communication system, wherein the coverage area of each system substantially overlaps, a method that transfers a private data transmission from the trunking communication system to the cellular communication is disclosed. When a data transmission unit is prompted to transmit data, it transfers its affiliation from the trunking communication system to the cellular communication system. Once affiliated with the cellular communication system, the data transmission unit transfers its data via the cellular communication system. The trunking communication system detects the requested data and routes the requested data to the appropriate data target. Once the data transmission unit has transmitted the requested data, it transfers its affiliation back to trunking communication system.Type: GrantFiled: November 5, 1990Date of Patent: August 24, 1993Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Gary W. Grube
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Patent number: 5218716Abstract: In a geographic region that contains a trunking communication system and a cellular communication system, wherein the coverage area of the trunking system and cellular communication system substantially overlap and wherein some communication units are located within the geographic region, a method is disclosed for a trunking communication system to locate a particular communication unit. In order to locate a particular communication unit, a communication channel controller of the trunking communication system transmits a location request to the particular communication unit. Upon receiving the location request, the particular communication unit transfers its affiliation from the trunked communication system to the cellular communication system. Once affiliated with the cellular communication system, the particular communication unit transmits a location message to the communication channel controller via the cellular communication system.Type: GrantFiled: November 5, 1990Date of Patent: June 8, 1993Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Gary W. Grube
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Patent number: 5212805Abstract: Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the inbound frequencies of communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system also measures the signal strength and compares the measured and transferred values with thresholds and when the thresholds are exceeded, reuses the communication resources under a TDM format within the small system.Type: GrantFiled: June 29, 1990Date of Patent: May 18, 1993Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Arun Sobti, Paul M. Bocci, Robert W. Furtaw, Bradley M. Hiben, James A. McDonald
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Patent number: 5193101Abstract: A way of allowing small, low-power communication units to reuse trunked system communication resources within the service coverage area of the larger trunked system without experiencing significant interference from the trunked system. The low power units (requestors and targets) avoid interference through spread spectrum transmissions.Type: GrantFiled: February 4, 1991Date of Patent: March 9, 1993Assignee: Motorola, Inc.Inventors: James A. McDonald, Richard A. Comroe, Arun Sobti, Paul M. Bocci, Robert W. Furtaw, Bradley M. Hiben
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Patent number: 5179721Abstract: In a geographic region that contains a trunking communication system and a cellular communication system, where the coverage area of each system substantially overlaps, a method that enables a communication unit to operate in either system is disclosed. Normally in accordance with the present invention, a communication unit will monitor a control channel of the cellular communication system. When the communication unit is needed within the trunking communication system, a communication channel controller of the trunking communication system will place a telephone call to the communication unit via the cellular communication system. The telephone call indicates to the communication unit that it should transfer its affiliation from the cellular communication system to the trunking communication system. Once the communication unit has transferred its affiliation to the trunking communication system, it operates as a trunking communication unit.Type: GrantFiled: November 5, 1990Date of Patent: January 12, 1993Assignee: Motorola Inc.Inventors: Richard A. Comroe, Gary W. Grube
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Patent number: 5159695Abstract: Independent communication systems are provided with additional receivers that allow the systems to monitor one another's outbound control signalling channels. Secondary control signalling can be interleaved with the primary control signalling information on this communication resource, which secondary control signalling information is intended for reception and use by the monitoring system.Type: GrantFiled: May 30, 1989Date of Patent: October 27, 1992Assignee: Motorola, Inc.Inventors: Richard A. Comroe, Arun Sobti, John E. Major
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Patent number: 5146538Abstract: A communication system supporting dispatch-like communications in a geographic reuse system environment. An originating user provides a verbal alias corresponding to a target communication unit. The system utilizes the verbal alias to locate a corresponding system identification code for the target unit. The system then determines the general whereabouts of the target unit, and establishes a communication path between the two units. The original voice message may be stored and subsequently transmitted to the target unit upon properly identifying, locating, and establishing a communication path to the target unit.Type: GrantFiled: August 31, 1989Date of Patent: September 8, 1992Assignee: Motorola, Inc.Inventors: Arun Sobti, Richard A. Comroe