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Pulse Or Digital Communications > Spread Spectrum > Frequency Hopping > End-to-end Transmission System End-to-end Transmission SystemEnd-to-end Transmission System patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.07/19/07 - 20070165695 - Techniques for generating and using a reservation map A method of allocation transmission channels of a frequency band to has each of a plurality of remote stations monitor all channels of the frequency band in its area for the presence of transmissions from stations not part of the network. Each remote station transmits its clear channel list to ... 05/10/07 - 20070104248 - Digital wireless audio communication system employing time diversity A communication system that transfers digital data on a fixed frequency channel of a radio frequency band in the presence of interference from at least one FHSS interference source includes a time diversity generation circuit. The time diversity circuit compacts a duration of data frames then replicate the time compressed ... 03/22/07 - 20070064771 - Receiving and selectively transmitting frequency hopped data signals using a plurality of antennas A remote unit transmits data by Frequency hopping over a set of frequencies to a base station. A plurality of antennas at the base station receives the transmitted frequency hopped data. An optimal combining of each antenna's received hopped data for a particular frequency is determined. Data is selectively transmitted ... 03/22/07 - 20070064770 - Wireless communication apparatus and wireless communication method There is provided with there is provided with a wireless communication method using a frequency hopping scheme, which performs wireless communication with a different wireless communication apparatus by using a plurality of frequency bands, including: measuring interference quantities showing strength of interference signals in respective frequency bands; selecting a hopping ... 02/08/07 - 20070030883 - Spectrum shaping using code-hopping cdma A method for spectrally shaping a communication signal is provided. The method comprises generating a plurality of spreading codes, assigning a probability to each of the plurality of spreading codes, and modulating the communication signal by hopping between the plurality of spreading codes such that a time-average proportion of time ... 11/02/06 - 20060245470 - Method of quality-based frequency hopping in a wirelesscommunication system In a wireless communications system which hops from frequency to frequency, rather than hopping according to a fixed dwell interval and a pre-determined pseudo-random hop sequence, a quality-based frequency hopping methodology is defined in which a new frequency is hopped to when the channel quality on the current frequency degrades ... 10/12/06 - 20060227852 - Method and apparatus for reducing data collisions in a frequency hopping communication system A method in a transmitter for data collision avoidance in an uncoordinated frequency hopping communication system is disclosed. The base station (104) first determines (304) that a first data set to be sent to a first device (105) and a second data set to be sent to a second device ... 10/12/06 - 20060227851 - Multiple access method and system A wireless communication system that transmits data on multiple carriers simultaneously to provide frequency diversity includes an antenna array, which may provide for transmit diversity. Complex coding applied to the carriers and carrier frequency separation control time-domain characteristics of a superposition of the carriers. Each transmitter of a transmitter array ... 09/07/06 - 20060198426 - Overhead reduction in frequency hopping system for intermittent transmission A radio transmission telemetry system includes several transmitters intermittently transmitting short messages indicative associated sensors status and a receiver for collecting data from the sensors. The transmitters transmit short messages separated by long time intervals independently of any receiver capable of receiving from any of the transmitters. Each transmitter changes ... 05/25/06 - 20060109889 - System for, and method of, providing frequency hopping In many systems now in use for sending digital data from a controlled station (e.g., a transmitting station), generally indicated at 10 in FIG. 1, to a controlling station (e.g., a receiving station) generally indicated at 12, a plurality of hopping frequencies are provided. In such systems, a first packet ... 05/18/06 - 20060104334 - Virtual cell mapping in macrodiverse wireless networks with frequency hopping A communication system for communication with mobile stations through a plurality of base stations at macrodiverse locations and with frequency hopping (FH). Two or more adjacent base stations communicate with mobile stations in a region between the adjacent base stations using coordinated orthogonal frequency hopping sequences. The communication system operates ... 03/23/06 - 20060062279 - Digital frequency hopping transceiver and method thereof A digital frequency-hopping (FH) transceiver and a method thereof, which can be applied to FH communication system with a short FH time, are disclosed. The transceiver employs a digital signal processing (DSP) in baseband (BB) circuits to implement FH without need to adjusting the RF carrier frequency. Wherein, the digital ... 03/16/06 - 20060056493 - Frequency hopping spread spectrum system with high sensitivity tracking and synchronization for frequency unstable signals A wireless spread spectrum communication system for transmitting data includes a plurality of end point transmitters and at least one receiver. The end point transmitters transmit data via a frequency hopped spread spectrum signal where the transmitting signal is sent without the benefit of frequency stabilization. The receiver is responsive ... 02/23/06 - 20060039450 - Beacon channel for frequency hopping wireless devices A mobile device for communicating with other devices using a frequency hopping wireless interface such as blue-tooth, sends a sequence of messages each on a different frequency, for finding other devices within range, and listens for a response during a subsequent response window, on one or more response frequencies. It ... 11/10/05 - 20050249266 - Multi-subband frequency hopping communication system and method The invention provides an adaptive frequency hopping spread-spectrum (FHSS) transmission system and method, which efficiently utilizes available transmission bandwidth, whilst providing robustness to jamming techniques in wireless communication systems. The proposed technique operates by transmitting a wide-band signal over multiple, single-carrier, parallel transmission subbands, which may occupy non-contiguous frequency regions. ... 11/10/05 - 20050249265 - Method and system for frequency hopping radio communication A transmitter shown in FIG. 3 inputs to a mixer 36 an IF band modulation signal generated from transmission data and a frequency hopping signal obtained by a hopping synthesizer 38 controlled by a hopping pattern generator 37, thereby obtaining a frequency hopping radio signal to be transmitted. In a ... 10/27/05 - 20050238084 - Method and system for operating multiple dependent networks A device and method for ultra wide band transmission, the method includes: (a) allowing a first group of ultra wide band devices to exchange information using a first frequency hopping sequence; and (b) allowing at least one certain device that is responsive to at least one transmission of information from ... 06/30/05 - 20050141596 - Method and apparatus for reducing data collisions in a frequency hopping communication system A method in a transmitter for data collision avoidance in an uncoordinated frequency hopping communication system is disclosed. The base station (104) first determines (304) that a first data set to be sent to a first device (105) and a second data set to be sent to a second device ... ### FreshPatents.com Support |