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| Number | Title | Issue Date |
| 8149894 | Wideband frequency hopping spread spectrum transceivers and related methods Ultra-wideband frequency hopping spread spectrum (UWB-FHSS) solutions are used for transceiver architectures. These UWB-FHSS transceiver architectures can transmit and accurately digitize frequency hops over an extremely wide bandwidth while using a relatively slow ... | 04/03/2012 |
| 8107510 | Method and apparatus for non-cooperative coexistence between wireless communication protocols A method and apparatus of reducing interference between wireless communication protocols is disclosed. The method comprises reducing interference between a first wireless communication protocol operating in a first frequency band and a second wireless communication ... | 01/31/2012 |
| 8023552 | Methods of discovering neighbors in opportunistic open access ad hoc wireless networks In an ad hoc wireless network, for purposes of neighbor discovery, a transmitting node transmits a beacon within a timeslot and at a frequency that varies from timeslot-to-timeslot according to one or more associated and known pseudo-random or cyclical frequency hop... | 09/20/2011 |
| 8000375 | Interrogator A hopping pattern setting section sets, as a frequency hopping pattern code, elements of a matrix in which all integers of “1” to “the number of frequencies to be used” appear only once and which is obtained by adding, as an offset, any one of integers of ... | 08/16/2011 |
| 7894503 | System and method of flexible channel allocation in an ultra wideband (UWB) frequency hopping communication system A system and method of flexible channel allocation in an ultra wideband frequency hopping communication system is disclosed. In one embodiment, a method includes communicating radio signals through rapidly switching among a band group 6 according to a hopping... | 02/22/2011 |
| 7852904 | 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 d... | 12/14/2010 |
| 7804883 | 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 obt... | 09/28/2010 |
| 7738529 | 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 inte... | 06/15/2010 |
| 7711029 | Hopping pilot pattern for telecommunications A transmitter (22) of a telecommunications system transmits hopped pilot signals as a distinct (i.e., locally unique) time-frequency shift of a time frequency plane array wherein the pilot signals are hopped using a hopping sequence. Differing transmitters of... | 05/04/2010 |
| 7684465 | Frequency hopping communication protocol A Master-Slave Dwelling technique associated with modified Bluetooth hopping provides performance gains and extended ranges of operation for slow Doppler situations (slower than 1-3 Km/h). The Master and Slave make use of only the good frequencies (frequencies for w... | 03/23/2010 |
| 7613223 | Time-frequency coding in a multi-band ultra-wideband system Time-frequency coding in a multi-band ultra-wideband system is generally described. In this regard a hopping code agent is presented to select a frequency hopping code for encoding and decoding from a set of predetermined FHC's for communicating with other devices i... | 11/03/2009 |
| 7613224 | Qualification and selection of the frequency channels for an adaptive frequency hopping method by means of field strength measurement In a method for qualification of the transmission quality of a frequency channel in a wire-free communication system that has two or more frequency channels, units in the system communicate via the frequency channels. Data is transmitted in time slots in a time patt... | 11/03/2009 |
| 7577180 | Method and system for maintaining synchronization in low-power mode over a frequency hopping radio link Systems and methods for maintaining synchronization of a base unit and a portable unit in a low-power mode are provided. The base unit and the portable unit communicate with each other via wireless frequency hopping radio communications links. The base unit and the ... | 08/18/2009 |
| 7548578 | Digital frequency hopping transceiver and method thereof The digital frequency-hopping (FH) transceiver and the method thereof can be applied to FH communication system with a short FH time. The transceiver employs a digital signal processing (DSP) in baseband (BB) circuits to implement FH without need to adjusting the RF... | 06/16/2009 |
| 7545847 | Frequency synthesizer applied to frequency hopping system A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequ... | 06/09/2009 |
| 7529288 | Channel qualification for an adaptive frequency hopping method by means of bit or packet error rate measurement and simultaneous field strength measurement In a method for qualification of a frequency channel in a wire-free communication system, data is transmitted on different frequency channels by means of an adaptive frequency hopping method. The transmission and reception are carried out in time slots using a time ... | 05/05/2009 |
| 7519100 | Method and device for transmission/reception with frequency hopping A method and device for transmitting data in the form of a series of blocks in which each block of data is subjected to a frequency conversion in order to be transmitted at a carrier frequency. The method includes inserting a sequence of padding data between a first... | 04/14/2009 |
| 7515627 | System and method for ultra-wideband (UWB) communication transceiver An ultra-wideband (UWB) transceiver for use in UWB communication includes a voltage-controlled oscillator (VCO) configured to periodically and sequentially generate a series of base frequencies based on a predetermined sequence and a waveform generator to generate c... | 04/07/2009 |
| 7447252 | 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. Each transmitter changes time and frequency of transmissions acco... | 11/04/2008 |
| 7430232 | Method and system for broadcasting a programme Method and apparatuses for broadcasting and receiving a programme are presented. A programme is broadcast from a broadcasting system. Broadcast programme-associated data is transferred from a server to a cellular radio network. The broadcast programme-associated dat... | 09/30/2008 |
| 7426177 | Round trip delay adjustment in multipoint-to-point communication using orthogonal frequency division multiplexing Systems and methods for bidirectional communication are provided. In one embodiment, a method for aligning communications from a plurality of remote units in a multipoint-to-point orthogonal frequency division multiplexed (OFDM) communications comprises sending a fi... | 09/16/2008 |
| 7411994 | Methods and apparatus for adapting a hop sequence when establishing a communication connection Methods and apparatus are provided for establishing a connection between a scanner device and a pager device over a sequence of hop channels. The scanner device is repetitively activated and a hop channel is selected from the sequence of hop channels as a function o... | 08/12/2008 |
| 7408914 | Time-hopping systems and techniques for wireless communications Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a process, module or communications terminal schedules communications over a frame having a plurality of time slots. The proc... | 08/05/2008 |
| 7391802 | Modulating signals for coherent and differentially coherent receivers A system incorporates time-hopped impulse radio (TH-IR) and transmitted-reference impulse radio (TR-IR) transceivers in the same wireless network. A transmitter modulates a sequence of bits in a wireless communications network by generating a reference waveform and ... | 06/24/2008 |
| 7388927 | M-ary modulation of signals for coherent and differentially coherent receivers A system incorporates time-hopped impulse-radio (TH-IR), transmitted-reference impulse-radio (TR-IR) and noncoherent transceivers in the same wireless network. A transmitter modulates a sequence of bits in a wireless communications network by selecting one coding se... | 06/17/2008 |
| 7386026 | Method and system for synchronizing and selectively addressing multiple receivers in a wireless, spread spectrum communication system A system and method for synchronizing and selectively addressing multiple receivers in a wireless communication system includes a spread spectrum transmitter and one or more spread spectrum receivers. The transmitter transmits a signal having an observable parameter... | 06/10/2008 |
| 7376171 | Multiuser detection aided multiple access differential M-ary coding applications Techniques for multiple access differential M-ary coding applications that can be optionally aided by multiuser detection (MUD) are disclosed. An initial hopped feature decoding is performed to provide data estimates for each user represented in a received co-channe... | 05/20/2008 |
| 7373438 | System and method for reprioritizing high-latency input/output operations A mechanism for reprioritizing high-latency input/output operations in a file system is provided. The mechanism expands a file access protocol, such as the direct access file system protocol, by including a hurry up command that adjusts the latency of a given input/... | 05/13/2008 |
| 7372827 | Radio communication apparatus A base unit of a radio communication apparatus of the present invention includes a controller that discriminates whether or not company identifying information transmitted from a cordless handset is specific information in connecting a line in a Bluetooth (BT) commu... | 05/13/2008 |
| 7372890 | Methods and systems for detecting and mitigating interference for a wireless device In at least some embodiments, a method for mitigating interference between an Ultra Wideband (UWB) device and a non-UWB device is provided. The method includes, dynamically determining if a frequency channel associated with the non-UWB device is being used. If the f... | 05/13/2008 |
| 7372372 | Sequence inversion keyed countdown timer utilized within a utility meter system An automatic meter reading system that includes a head end controller and an endpoint that is interfaced to a utility meter. The head end controller and the endpoint communicate via RF communication. The endpoint includes an internal clock that synchronizes itself t... | 05/13/2008 |
| 7369565 | Wireless communication system and method using the same A wireless communication system has a queue information search unit for searching a queue-status information provided in a packet unit, a communication priority decision unit for deciding communication priority of external devices based on the queue-status informati... | 05/06/2008 |
| 7366223 | Modifying hopping sequences in wireless networks The present invention can be used to modify hopping sequences and families of hopping sequences. In one embodiment the present invention includes modifying a family of hopping sequences by eliminating a resource from a plurality of resources used by the family of ho... | 04/29/2008 |
| 7366200 | Beacon signaling in a wireless system A few high power tones used for synchronization and/or other purposes are transmitted in a FDM system during a period of time into a region, e.g., sector of a cell, e.g., a symbol transmission time period. During normal data transmission symbol periods signals are t... | 04/29/2008 |
| 7362817 | UWB (Ultra Wide Band) interference mitigation UWB (Ultra Wide Band) interference mitigation. A novel solution is presented whereby various piconet operable devices are operated to support a relatively structured interference pattern. The devices operate cooperatively (e.g., within multiple piconets that may be ... | 04/22/2008 |
| 7362829 | Multi-band single-carrier modulation Multi-band single-carrier modulation. A novel approach is presented by which interference compensation may be performed for signals received by a piconet operable device. The piconet operable device may be implemented within a region that includes two or more SOPs (... | 04/22/2008 |
| 7359472 | Method and apparatus for wireless data transmission A method and apparatus for wireless data transmission between a base station and one or more, in particular, passive and/or backscatter-based transponders, in which the base station modulates a carrier signal with a modulation signal, to generate synchronization mar... | 04/15/2008 |
| 7359528 | Monitoring of video or audio based on in-band and out-of-band data The presently claimed invention relates generally to monitoring and/or filtering video or audio data. In one implementation a method is provided including: obtaining data representing video or audio; analyzing the data representing video or audio for an in-band sign... | 04/15/2008 |
| 7355962 | Multi-carrier communications with group-based subcarrier allocation A method and apparatus for subcarrier selection for systems is described. In one embodiment, a method for subcarrier selection for a system employing orthogonal frequency division multiple access (OFDMA) comprises partitioning subcarriers into groups of at least one... | 04/08/2008 |
| 7356041 | Method and system for transmitting signals using frequency hopping Method of and system for transmitting signals, e.g. control signals, request signals, interrogation signals etc. in a control system comprising at least two units, wherein at least one of said units is designed to operate as a master unit and wherein at least one of... | 04/08/2008 |
