Patents by Inventor Robert F. Friedman

Robert F. Friedman 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).

  • Patent number: 7646834
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: January 12, 2010
    Assignee: Virlite Communicaton Limited Liability Company
    Inventor: Robert F. Friedman
  • Patent number: 7231178
    Abstract: Presented is a satellite communication system that allows aggregation of available transponder bandwidth. A channel signal is divided into subchannels if no full transponder is available to receive the channel signal in its entirety, and the subchannels are distributed among a available bandwidths in a plurality of transponders. At the receiving station, the subchannels are combined to form the original channel signal. The channel signal, whether divided and reconstructed or transmitted without being divided, are received into a switch matrix that receives a user channel selection and identifies the channel signal that corresponds to the selection. The identified channel signal is then demodulated and forwarded to a user interface unit. Only a single demodulator is necessary for a user interface unit.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: June 12, 2007
    Assignee: Virtual Satellite Corp.
    Inventors: Robert F. Friedman, John A. Bush, Greg Garner, John C. Thacker
  • Patent number: 7039119
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 2, 2006
    Assignee: Virtual Satellite Corporation
    Inventor: Robert F. Friedman
  • Patent number: 6865238
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: March 8, 2005
    Assignee: Virtual Satellite Corporation
    Inventor: Robert F. Friedman
  • Patent number: 6738434
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time- synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: May 18, 2004
    Assignee: Virtual Satellite Corporation
    Inventor: Robert F. Friedman
  • Publication number: 20030199246
    Abstract: Presented is a satellite communication system that allows aggregation of available transponder bandwidth. A channel signal is divided into subchannels if no full transponder is available to receive the channel signal in its entirety, and the subchannels are distributed among a available bandwidths in a plurality of transponders. At the receiving station, the subchannels are combined to form the original channel signal. The channel signal, whether divided and reconstructed or transmitted without being divided, are received into a switch matrix that receives a user channel selection and identifies the channel signal that corresponds to the selection. The identified channel signal is then demodulated and forwarded to a user interface unit. Only a single demodulator is necessary for a user interface unit.
    Type: Application
    Filed: March 4, 2003
    Publication date: October 23, 2003
    Inventors: Robert F. Friedman, John A. Bush, Greg Garner, John C. Thacker
  • Publication number: 20030143995
    Abstract: Presented is a satellite communication system that allows aggregation of available transponder bandwidth. A channel signal is divided into subparts (e.g., data packets), formatted (e.g., encapsulated) and distributed among a plurality of subchannels according to bandwidth availability. Each subpart is encoded with information that facilitates proper reconstruction of the original channel data at the receiving station. The subchannels are transmitted to a receiving station, which synchronizes the subchannels and decapsulates the subparts. The receiving station includes a subchannel combiner which combines the decapsulated subparts in select subchannels to produce a reconstructed version of a user-selected channel signal. A controller in the receiving station identifies the subchannels to be combined in response to user selection and sends commands to a subchannel combiner.
    Type: Application
    Filed: December 10, 2002
    Publication date: July 31, 2003
    Inventors: Robert F. Friedman, John Bush, Greg Garner, John C. Thacker
  • Patent number: 6549582
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 15, 2003
    Assignee: Virtual Satellite, Inc.
    Inventor: Robert F. Friedman
  • Publication number: 20030031265
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Application
    Filed: October 8, 2002
    Publication date: February 13, 2003
    Inventor: Robert F. Friedman
  • Publication number: 20020196869
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Application
    Filed: August 28, 2002
    Publication date: December 26, 2002
    Inventor: Robert F. Friedman
  • Patent number: 6452989
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: September 17, 2002
    Assignee: Virtual Satellite Corporation
    Inventor: Robert F. Friedman
  • Publication number: 20020057745
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 16, 2002
    Inventor: Robert F. Friedman
  • Patent number: 6154501
    Abstract: A satellite communications system provides an information channel between remotely located transmitters and receivers. A virtual satellite system provides the same service, but divides the signal either in power or in data content into subchannels such that any particular signal is conducted to the intended receiver via a plurality of traditional satellite channels. The receiving terminal accepts the plurality of signals simultaneously from a possible plurality of satellites, combining the subchannels comprising the virtual channel into the original signal content as if conducted via a single channel. The receiving antenna system receives satellite subchannel signals from a plurality of directions using multiple antennas or a single antenna with multi-direction capability. Prior to signal combining, the receiver necessarily time-synchronizes the plurality of subchannels by introducing time delay in some channels before combining the subsignals into the original composite.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: November 28, 2000
    Inventor: Robert F. Friedman