Patents by Inventor John Limb
John Limb 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: 8654775Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: GrantFiled: March 21, 2011Date of Patent: February 18, 2014Assignee: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Publication number: 20110170507Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: ApplicationFiled: March 21, 2011Publication date: July 14, 2011Applicant: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Patent number: 7912066Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: GrantFiled: June 12, 2007Date of Patent: March 22, 2011Assignee: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Patent number: 7733912Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: GrantFiled: June 12, 2007Date of Patent: June 8, 2010Assignee: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Patent number: 7697543Abstract: A multi-source data multiplexing system that accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically comprising a transmission time on a data channel, and inserts a information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: GrantFiled: August 4, 2004Date of Patent: April 13, 2010Assignee: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Publication number: 20070297436Abstract: A system and method is provided for scheduling transmissions from a plurality of services operating over a widely distributed communications network. A headend communications device (such as a cable modem termination system) arbitrates bandwidth among a plurality of cable modems configurable for bidirectional communications. The headend grants a bandwidth region to a specified cable modem or assigns contention regions for a group of cable modems. Each cable modem contains a local scheduler that sends requests for bandwidth according to local policies or rules. Upon receipt of a grant from the headend, the local scheduler selects packets to be transmitted to best serve the needs of the services associated with the cable modem. Accordingly, a service requesting bandwidth may not be the service utilizing the grant corresponding to bandwidth request.Type: ApplicationFiled: August 28, 2007Publication date: December 27, 2007Applicant: Broadcom CorporationInventors: Dolors Sala, Ajay Chandra Gummalla, John Limb, Richard Protus
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Publication number: 20070242692Abstract: A wireless communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The wireless communication system includes a first group of one or more subscriber stations that interface with a base station in accordance with a first protocol and a second group of one or more subscriber stations that interface with the base station in accordance with a second protocol. The base station includes a protocol processor that identifies transmissions from the first and second groups of subscriber stations and routes transmissions from the first group of subscriber stations to a first processor operating in accordance with the first protocol and routes transmissions from the second group of subscriber stations to a second processor operating in accordance with the second protocol.Type: ApplicationFiled: May 8, 2007Publication date: October 18, 2007Applicant: Broadcom CorporationInventors: John Limb, Dolors Sala, Ajay Chandra Gummalla, Fred Bunn
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Publication number: 20070242673Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: ApplicationFiled: June 12, 2007Publication date: October 18, 2007Applicant: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Publication number: 20070242693Abstract: In a wireless communication system, a multi-source data multiplexing system (e.g., a media access control (MAC)) accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically including a transmission time on a data channel, and inserts an information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: ApplicationFiled: June 12, 2007Publication date: October 18, 2007Applicant: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Publication number: 20070242687Abstract: A wireless communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The wireless communication system includes a first group of one or more subscriber stations that interface with a base station in accordance with a first protocol and a second group of one or more subscriber stations that interface with the base station in accordance with a second protocol. The base station includes a protocol processor that identifies transmissions from the first and second groups of subscriber stations and routes transmissions from the first group of subscriber stations to a first processor operating in accordance with the first protocol and routes transmissions from the second group of subscriber stations to a second processor operating in accordance with the second protocol.Type: ApplicationFiled: May 8, 2007Publication date: October 18, 2007Applicant: Broadcom CorporationInventors: John Limb, Dolors Sala, Ajay Chandra Gummalla, Fred Bunn
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Publication number: 20070076717Abstract: A two way communication system is adapted for compatible inter-operation of a plurality of devices operating in accordance with a plurality of protocols. The communication system includes a first group of one or more remote devices that interface with a local host in accordance with a first protocol and a second group of one or more remote devices that interface with the local host in accordance with a second protocol. The local host includes a protocol processor that identifies transmissions from the first and second groups of remote devices and routes transmissions from the first group of remote devices to a first processor operating in accordance with the first protocol and also routes transmissions from the second group of remote devices to a second processor operating in accordance with the second protocol.Type: ApplicationFiled: October 31, 2006Publication date: April 5, 2007Applicant: Broadcom CorporationInventors: John Limb, Dolors Sala, Ajay Chandra Gummalla, Fred Bunn
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Publication number: 20060159094Abstract: A point-to-multipoint network interface is provided that is simpler and less costly to implement than conventional Ethernet switches. The interface includes a plurality of downstream transmitters for transmitting data packets to a plurality of end user devices, a plurality of downstream receivers for receiving data packets from the plurality of end user devices, an upstream transmitter and an upstream receiver. A multiplexer within the interface multiplexes data packets received from the end user devices into a stream of data packets for transmission to a higher level node regardless of the destination address of the data packets. Conversely, a demultiplexer within the interface demultiplexes a stream of data packets received from the higher level node into individual data packets for selective transmission to one of the plurality of end user devices. The interface can support asymmetrical transmission rates on the upstream and downstream channels between the interface and the end user devices.Type: ApplicationFiled: March 23, 2006Publication date: July 20, 2006Applicant: Broadcom CorporationInventors: Ajay Chandra Gummalla, John Limb
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Publication number: 20050008027Abstract: A multi-source data multiplexing system that accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically comprising a transmission time on a data channel, and inserts a information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: ApplicationFiled: August 4, 2004Publication date: January 13, 2005Inventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus
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Patent number: 6804251Abstract: A multi-source data multiplexing system that accepts information packets from a plurality of signal sources, evaluates the relative efficiencies of data transmission, and transmits the information packets in provided grant regions for maximum efficiency. The multi-source data multiplexing system may accept any form of information packet from any form of signal source. The system receives a grant region, typically comprising a transmission time on a data channel, and inserts a information packet into the grant region. The actual information packet placed in the grant region may be one other than the packet for which the grant region was intended. Further, the multi-source data multiplexing system may fragment an information packet and transmit only a portion of the information packet in the grant region.Type: GrantFiled: October 27, 1999Date of Patent: October 12, 2004Assignee: Broadcom CorporationInventors: John Limb, Daniel Howard, Dolors Sala, Richard Protus, Ajay Chandra V. Gummalla