Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8064494 | Last finger polling for rake receivers Techniques for polling fingers on a channel (which are fingers for which symbols are to be combined) to determine the last finger on the channel. As each finger is polled, the polled finger compares its state information with the state information for the channel to... | 11/22/2011 |
| 8064495 | Frequency hopping RF reception system with programmable antenna and methods for use therewith A (radio frequency) RF reception system includes an RF receiver that demodulates an RF signal at a sequence of selected carrier frequencies. A frequency hop module, coupled to the RF receiver generates the sequence of selected carrier frequencies. A programmable ant... | 11/22/2011 |
| 8036255 | Waveform design hopping system and method A method of transmitting a spread spectrum signal in a single communication session between a transmitter and a receiver, stores a series of N unique waveform designs and a hopping sequence in a transmitter memory. A signal is transmitted to a receiver according to ... | 10/11/2011 |
| 8018983 | Tunable diversity antenna for use with frequency hopping communications protocol A sound reproducing device. The sound reproducing device for receiving a frequency-hopping signal having an instantaneous frequency within a hopping bandwidth. The sound reproducing device comprises a first antenna having a bandwidth including the hopping bandwidth ... | 09/13/2011 |
| 8000376 | Adjusting a transmit time of a wireless device Methods of adjusting a transmit time of a wireless device are disclosed. One method includes a receiver determining a frequency hopping sequence of an interfering signal. The receiver obtains an observed pattern of at least one of time and frequency overlap between ... | 08/16/2011 |
| 7974329 | Method and apparatus for timing estimation in a wireless communications system A method for performing symbol timing estimation is disclosed herein. In one approach, the method includes defining a search space in a plurality of estimated magnitudes of channel taps; defining a search window in the search space; and locating a symbol timing esti... | 07/05/2011 |
| 7876807 | Asymmetry technique for multipath mitigation in pseudorandom noise ranging receiver This invention is directed to a method for estimating and compensating for multipath errors in a pseudorandom noise ranging receiver. The method exploits the asymmetry of the correlation function and proportionately relates it to the magnitude of multipath error. In... | 01/25/2011 |
| 7822100 | Phase mapping for QPSK/QBL-MSK waveform A method of pulse shaping a spread signal of serially formatted in-phase (I) and quadrature (Q) waveforms, where each waveform includes a predetermined number of chips per symbol, includes (a) examining adjacent chips of the I and Q waveforms at a symbol boundary; a... | 10/26/2010 |
| 7804884 | Packet detection in time/frequency hopped wireless communication systems Systems and methods for packet detection for frequency hopping networks. Multiple receiver chains are set to different frequencies to check for packets at the different frequencies, at least until receipt of a preamble sequence in a packet is received. After detecti... | 09/28/2010 |
| 7724804 | Receiving apparatus and channel estimating apparatus A receiving apparatus receives an Orthogonal Frequency Division Multiplexing (OFDM) signal, including an OFDM symbol, subject to frequency hopping on multiple bands, the OFDM symbol, which functions as a channel estimation sequence, being transmitted multiple times ... | 05/25/2010 |
| 7672356 | Method and apparatus for detection of a frequency coded sequence in the presence of sinusoidal interference A communication device according to the present invention detects a frequency-hopped signal in an environment including sinusoidal interference. The frequency-hopped signal includes a frequency shift keying (FSK) sequence, where the sequence alternates between frequ... | 03/02/2010 |
| 7555031 | Digital wireless audio receiver system employing time diversity A receiver system that receives and recovers digital data on a fixed frequency channel of a radio frequency band in the presence of interference from at least one FHSS interference source. The digital data has a duration of data frames compacted then replicated to f... | 06/30/2009 |
| 7515628 | Portable terminal set and control method thereof Monitoring is made as to whether the serial number of header incorporated to the data sent to a Radio Link Control (RLC) after a decoding process is continuous. When it is determined as a result of monitoring for a predetermined period of time that no defect is pres... | 04/07/2009 |
| 7443827 | Mobile communication system, multicarrier CDMA transmitter, and multicarrier CDMA receiver A transmitting apparatus adds a common pilot symbol and known series for each data slot of a subcarrier group. A receiving apparatus combines SIR calculation values obtained for each subcarrier group, and averages the SIR calculation values. Based on this, it is pos... | 10/28/2008 |
| 7443917 | Method and system for transmission of information data over a communication line A transceiver system and method comprises a transmitter and a receiver. The transmitter includes a synthesis filter bank and an overlapping unit. The synthesis filter bank generates and modulates a set of wavelets. The overlapping unit generates a multicarrier signa... | 10/28/2008 |
| 7439813 | Method and system for generating carrier frequencies for UWB application Apparatus and method for generating first, second and third carrier frequencies of 3432 MHz, 3960 MHz and 4488 MHz respectively, for use in a wireless transmission system deploy only first and second PLLs which are configured to generate 6336 MHz and 2640 MHz signal... | 10/21/2008 |
| 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 |
| 7424047 | Receiver based method for de-spreading of spread spectrum signal A spread spectrum receiver whose de-spreading process based on transformed spreading codes is provided. Instead of de-spreading with original spreading codes, this approach de-spreads received signal with the spreading codes transformed from the original codes in or... | 09/09/2008 |
| 7418026 | Receiver for a multi-carrier modulated symbol A receiver for receiving a multi-carrier modulated symbol is arranged to suppress a burst noise signal which may have been induced in the symbol. The symbol includes a plurality of pilot carriers as well as a plurality of data bearing carriers. The receiver comprise... | 08/26/2008 |
| 7411997 | Apparatus and method for filtering a spectrum spread communication A filter (201) accepts spreading code sequences or the like as input sequences of a chip rate 1/D, the accepted spreading code sequences are sequentially delayed and distributed by delay circuits (202) connected in series, delay times of individual sig... | 08/12/2008 |
| 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 |
| 7405696 | Method for calibrating and AOA location system for frequency hopping air interfaces A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at... | 07/29/2008 |
| 7403556 | Radio receiver supporting multiple modulation formats with a single pair of ADCs A radio receiver has an ADC connected to an RF module. Baseband processing modules are connected to the ADC, and a power control module is connected to each of the baseband processing modules. Each of the baseband processing modules is capable of performing detectio... | 07/22/2008 |
| 7403583 | System and method for predictive synchronization for locating interleaving frames and demodulation training sequences A system and method for using Psuedo-Noise (PN) phase to determine frame start of a data frame is provided. The system and method includes at least two PN component codes, wherein the at least two PN component codes are relatively prime. A received PN composite enco... | 07/22/2008 |
| 7400867 | Radio broadcast receiver A radio broadcast receiver is provided which reduces the degradation in quality of diversity-received signals. When a difference in level between a reception signal of a main antenna and a reception signal of a sub antenna is less than a predetermined threshold valu... | 07/15/2008 |
| 7397842 | Method and apparatus for combining weight computation in a DS-CDMA RAKE receiver A RAKE receiver circuit generates combining weights based on channel estimates and combining statistics that comprise channel coefficient statistics, noise statistics, and channel estimation error statistics. Together, these statistics incorporate the relationships ... | 07/08/2008 |
| 7397844 | Method and apparatus for processing a modulated signal using an equalizer and a rake receiver In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized within an equalizer to generate symbol estimates, which may be subsequent... | 07/08/2008 |
| 7388901 | Method for receiving spectrum spreading signals with frequency shift correction A method for receiving spectrum spreading signals using a Doppler-effect frequency-shift correction generates a corrective signal based on an estimation of a modulation period related to the Doppler effect detected in a preamble portion of a received signal. The cor... | 06/17/2008 |
| 7388902 | Method for receiving spectrum spreading signals with frequency shift correction A method for receiving spectrum spreading signals using a Doppler-effect frequency-shift correction generates a corrective signal based on an estimation of a modulation period related to the Doppler effect detected in a preamble portion of a received signal. The cor... | 06/17/2008 |
| 7388899 | Spreading code structure for ultra wide band communications The ultra wide band communication system of the present invention includes a transmitter (station) and a receiver (station). The transmitter and the receiver employ spreading code comprised of code groups, which respectively comprise varied, auto-correlated codes. C... | 06/17/2008 |
| 7388900 | Estimation method for space correlation characteristics of noise in a time slotted CDMA system The invention discloses a method for estimating the space correlation characteristics of noise in a time slotted CDMA system. The method comprises the steps of: making channel estimation for the received signal of each antenna of an antenna array, respectively, to o... | 06/17/2008 |
| 7386032 | Receiver processing systems Spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto ... | 06/10/2008 |
| 7386035 | Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same Provided is a method of compensating for energy loss and eliminating inter-symbol interference (ISI) and inter-chip interference (ISI) in wireless signals, and a rake receiver for wireless LANs adopting the same. The rake receiver compensates for energy loss of a CC... | 06/10/2008 |
| 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 |
| 7376172 | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems Base station identification and downlink synchronization are realized by employing pilots including known symbols transmitted at prescribed frequency tones in individual ones of prescribed time intervals. Specifically, the symbols used in the pilots are uniquely loc... | 05/20/2008 |
| 7372364 | Algorithm for RFID security Techniques for detecting radio-frequency identification (RFID) tags are disclosed. For example, an exit control system is described that detects unauthorized removal of articles from a protected facility. A series of antennas are setup to produce interrogation corri... | 05/13/2008 |
| 7372921 | Apparatus and method for channel encoding/decoding in a communication system An apparatus and method for channel encoding/decoding are provided which vary an iterative decoding number according to service type, data class and channel condition. A message information receiver receives information about a message to be received. A controller d... | 05/13/2008 |
| 7369620 | Channel noise estimating method and apparatus applied to a multi-carrier system A channel noise estimating method and apparatus applied to a multi-carrier system are disclosed, where data symbols received by a receiving unit are applied to reconstruct the original transmitted data symbols. The reconstructing process is performed by either a sof... | 05/06/2008 |
| 7369484 | System and method for mitigating data flow control problems in the presence of certain interference parameters A radar, or other repetitive interference, detection and data flow control system and method for RF data transmissions uses an RF detector and an omni directional antenna to detect radar or similar signals. The information from the RF detector is communicated to a h... | 05/06/2008 |
