Patents Assigned to Tantivy Communications, Inc.
  • Patent number: 8254307
    Abstract: An improved data communication network including a wireless link for accessing, from an end user machine, objects in a selected web page retrievable from an Internet server by means of suitable request messages is described. The wireless link includes a subscriber unit coupled to the end user machine and a base station coupled to the server. Web page data packets retrieved from the server with the use of the request messages are intercepted and locally stored in a gateway unit on the base station side of the wireless link. The gateway unit generates, from the retrieved web page data packets, additional request messages suitable for retrieving, from the server, object data packets corresponding to the objects on the selected web page. Such retrieved object data packets are also stored in the gateway unit.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: August 28, 2012
    Assignee: Tantivy Communications, Inc.
    Inventor: Howard A. Heller
  • Patent number: 7936728
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase, time and power synchronism while maintaining optimal timing control over synchronization messages.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 3, 2011
    Assignee: Tantivy Communications, Inc.
    Inventor: James A. Proctor, Jr.
  • Publication number: 20100208708
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 19, 2010
    Applicant: TANTIVY COMMUNICATIONS, INC.
    Inventor: James A. Proctor, JR.
  • Patent number: 7773566
    Abstract: A method for operating a subscriber unit that communicates with a code division multiple access (CDMA) wireless network is provided. At the subscriber unit, synchronization information is encoded with a CDMA code. The CDMA encoded synchronization information is transmitted from the subscriber unit in discrete repeating intervals. The discrete repeating intervals are separated by other discrete repeating intervals during which the subscriber unit does not transmit synchronization information.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: August 10, 2010
    Assignee: Tantivy Communications, Inc.
    Inventor: James A. Proctor, Jr.
  • Publication number: 20090086680
    Abstract: A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or ‘control hold’ state) versus a request state (i.e., ‘request to change’ state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1×EV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.
    Type: Application
    Filed: June 30, 2008
    Publication date: April 2, 2009
    Applicant: TANTIVY COMMUNICATIONS, INC.
    Inventor: James A. Proctor, JR.
  • Publication number: 20090052404
    Abstract: A system for wireless data transmission that uses a channel bandwidth, channel separation, and radio frequency power spectrum which is compatible with existing deployments of wireless voice services. The transmitted waveforms are thus compatible with existing cellular networks. However, the time domain digital coding, modulation, and power control schemes are optimized for data transmission. Existing cellular network sites can thus be used to provide a high speed service optimized for wireless data traffic without the need for new radio frequency planning, and without interfering with existing voice service deployments.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 26, 2009
    Applicant: Tantivy Communications, Inc.
    Inventors: Carlo Amalfitano, James A. Proctor, JR.
  • Publication number: 20090055707
    Abstract: A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high data rate signal. Thereafter, the demultiplexer distributes portions of the coded high data rate signal to the modem processors. Each modem processor processes its respective portion of the coded signal for transmission in an independent channel.
    Type: Application
    Filed: April 28, 2008
    Publication date: February 26, 2009
    Applicant: TANTIVY COMMUNICATIONS, INC.
    Inventor: James A. Proctor, JR.
  • Patent number: 7480280
    Abstract: A subscriber access unit includes a transceiver for providing wireless communication of digital signals. The digital signals are communicated to a base station using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals. Subchannels are made available by the base station within each CDMA RF channel. A bandwidth manager is connected to the transceiver, and is allocated available subchannels by the base station on an as-needed basis, with a number of allocated subchannels changing during a given session. The transceiver, when powered on but not actively sending data, provides an idling mode connection on a reverse link to the base station. The idling mode connection enables subchannels to be reallocated without reestablishing a bit synchronization with the base station.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: January 20, 2009
    Assignee: Tantivy Communications, Inc.
    Inventor: James A. Proctor, Jr.
  • Publication number: 20070223426
    Abstract: A communication system, such as a wireless CDMA system, detects markers with fewer errors by having field units transmit the markers at different power levels (e.g., 9 dB for one marker and 11 dB for another marker). The difference in power levels of the markers allows the base station to identify the request markers using alternative criteria with a low probability of error, where the alternative criteria may include comparing the markers to respective energy level thresholds, monitoring occupancy of time slots, occupancy of mutually exclusive code channels, or combinations thereof. For example, in one particular embodiment, a request marker, which is generally a high priority marker, is transmitted with higher power, which improves the probability of detection and reduces the probability of false detection of the request marker.
    Type: Application
    Filed: May 22, 2007
    Publication date: September 27, 2007
    Applicant: Tantivy Communications, Inc.
    Inventor: James Proctor
  • Publication number: 20050259624
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.
    Type: Application
    Filed: July 18, 2005
    Publication date: November 24, 2005
    Applicant: Tantivy Communications, Inc.
    Inventor: James Proctor
  • Publication number: 20050249168
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.
    Type: Application
    Filed: July 18, 2005
    Publication date: November 10, 2005
    Applicant: Tantivy Communications, Inc.
    Inventor: James Proctor
  • Patent number: 6940842
    Abstract: A method for providing wireless communication of digital signals is provided, with the digital signals being communicated between wireless subscriber units and a base station. The digital signals are communicated using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals defined by orthogonal codes. The method includes making available a plurality of orthogonal subchannels within each CDMA RF channel. Available orthogonal subchannels are allocated on an as-needed basis for subscriber units actively sending data. An idling mode connection is provided on a reverse link for subscriber units which are powered on, but not actively sending data, by assigning a shared orthogonal subchannel to at least two different subscriber units, but utilizing different time slots of the shared orthogonal subchannel.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: September 6, 2005
    Assignee: Tantivy Communications, Inc.
    Inventor: James A. Proctor, Jr.
  • Patent number: 6928064
    Abstract: A method for monitoring idling mode connections between a base station and idling subscriber units that are powered on, but not actively sending data, is provided. The method includes making available a plurality of orthogonal subchannels within at least one Code Division Multiple Access (CDMA) radio frequency (RF) channel. A shared orthogonal subchannel is assigned to at least two different idling subscriber units, but utilizing different time slots of the shared orthogonal subchannels. For each idling subscriber unit assigned the shared orthogonal subchannel, a respective heartbeat signal is sent within its assigned time slot at a data rate that is low enough to maintain bit synchronization with the base station.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: August 9, 2005
    Assignee: Tantivy Communications, Inc.
    Inventor: James A. Proctor, Jr.
  • Publication number: 20050050429
    Abstract: A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high data rate signal. Thereafter, the demultiplexer distributes portions of the coded high data rate signal to the modem processors. Each modem processor processes its respective portion of the coded signal for transmission in an independent channel.
    Type: Application
    Filed: August 4, 2003
    Publication date: March 3, 2005
    Applicant: Tantivy Communications, Inc.
    Inventor: James Proctor
  • Publication number: 20050013284
    Abstract: A method for operating a subscriber unit that communicates with a code division multiple access (CDMA) wireless network is provided. At the subscriber unit, synchronization information is encoded with a CDMA code. The CDMA encoded synchronization information is transmitted from the subscriber unit in discrete repeating intervals. The discrete repeating intervals are separated by other discrete repeating intervals during which the subscriber unit does not transmit synchronization information.
    Type: Application
    Filed: July 21, 2004
    Publication date: January 20, 2005
    Applicant: Tantivy Communications, Inc.
    Inventor: James Proctor
  • Publication number: 20040257975
    Abstract: A base station receives a reverse link signal from a given field unit that includes a common code (i.e., shared by other field units) and a unique orthogonal code (i.e., distinguishing the given field unit from other field units). The reverse link signal travels in a multi-path environment along a primary path and at least one secondary path. The base station makes a diversity decision based on the unique orthogonal code seen at two different phases. The base station determines a gross timing offset to align the common code of the given field unit with the common code from other field units using unique orthogonal codes. The given field unit makes a corresponding coarse adjustment of the phase of its common code.
    Type: Application
    Filed: January 29, 2004
    Publication date: December 23, 2004
    Applicant: Tantivy Communications, Inc.
    Inventor: James A. Proctor
  • Publication number: 20040213176
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.
    Type: Application
    Filed: January 12, 2004
    Publication date: October 28, 2004
    Applicant: Tantivy Communications, Inc.
    Inventor: James A. Proctor
  • Publication number: 20040208147
    Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.
    Type: Application
    Filed: January 20, 2004
    Publication date: October 21, 2004
    Applicant: Tantivy Communications, Inc.
    Inventor: James A. Proctor
  • Publication number: 20040180696
    Abstract: A base station provides wireless communication of digital signals, with the digital signals being communicated in frames using a radio frequency channel via Code Division Multiple Access (CDMA) modulated radio signals. The base station includes a wireless transceiver for establishing a communication session over a digital communication path, and a bandwidth management module connected to the wireless transceiver for allocating a code channel within the radio frequency channel for the digital communication path to exchange digital signals during the communication session. The bandwidth management module also divides a current frame of digital signals into subframes to be transmitted within the code channel. The wireless transceiver transmits the subframes over the digital communication path, and receives feedback over the digital communication path on the subframes received with errors.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 16, 2004
    Applicant: Tantivy Communications, Inc.
    Inventors: Lawrence R. Foore, James A. Proctor
  • Publication number: 20040179497
    Abstract: A base station provides wireless communication of digital signals over digital communication paths, with the digital signals being communicated using radio frequency channels via Code Division Multiple Access (CDMA) modulated radio signals. The base station includes a wireless transceiver for establishing communication sessions over the digital communication paths, and buffers for storing data to be transmitted by the wireless transceiver. Each buffer is associated with a particular digital communication path and has a threshold associated with a level of data stored therein. A transmission processor allocates code channels within the radio frequency channels to transmit the stored data during the communication sessions. A channel resource assignor connected to the transmission processor monitors a level of data stored in each buffer and computes an urgency factor for each buffer based upon the threshold associated therewith.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 16, 2004
    Applicant: Tantivy Communications, Inc.
    Inventors: Lawrence R. Foore, James A. Proctor