Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8160648 | Method and apparatus for receiver diversity control in wireless communications Receiver diversity in a wireless device is controlled in response to operating conditions, transmission requirements, and control settings. The control of diversity reduces power consumption by enabling receive diversity on given conditions. Operating conditions, tr... | 04/17/2012 |
| 8160046 | Control channel assignment in a wireless communication network The disclosed embodiments provide for methods and systems for allocating a plurality of users on a control channel in a wireless communication network. In one aspect, a method for allocating a plurality of users on a control channel includes assigning a first number... | 04/17/2012 |
| 8139660 | Methods and apparatus related to using a wireless terminal scrambling identifier User specific modulation-symbol scrambling is implemented for various uplink segments, e.g., uplink traffic acknowledgement channel (ULTACH), uplink state request channel (ULSRCH), and uplink dedicated control channel (ULDCCH) segments. A wireless terminal is assign... | 03/20/2012 |
| 8098569 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 01/17/2012 |
| 8098568 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 01/17/2012 |
| 8094760 | Channel estimation Aspects describe channel estimation in an OFDM system. Baseline DFT-based channel estimation can be performed and scaling can be applied to mitigate distortion in the DFT-based estimations. In some aspects, baseline DFT-based channel estimation can be performed and ... | 01/10/2012 |
| 8023474 | Systems and methods for communicating control data using multiple slot formats Systems and methods for communicating control information in slots that use at least two different slot formats. In one embodiment, a method implemented in a wireless communication system includes providing at least two different slot formats, formatting control dat... | 09/20/2011 |
| 8014781 | Intra-cell common reuse for a wireless communications system To avoid or reduce intra-cell interference, each sector of a cell is associated with a sector-specific set of system resources (e.g., subbands) and at least one non-overlapping common set of system resources. Each common set for each sector includes system resources... | 09/06/2011 |
| 8014271 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 09/06/2011 |
| 7990844 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 08/02/2011 |
| 7990843 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 08/02/2011 |
| 7924781 | Method and apparatus for communications of data rate control information in a communication system In a communication system, a method and an apparatus provide for efficient communications of data rate control information. A mobile station communicates a request on a data channel for reception of a data file on a traffic channel. In response to the request, a tra... | 04/12/2011 |
| 7924699 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 04/12/2011 |
| 7916624 | Signaling method in an OFDM multiple access system A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time in... | 03/29/2011 |
| 7839308 | Using codewords in a wireless communication system Systems, methodologies, and devices are described that can facilitate bandwidth efficient non-coherent signaling for uplink control channel transmissions. A communication device (e.g., a mobile device, base station) can be configured to utilize or generate a set of ... | 11/23/2010 |
| 7826489 | Method and apparatus for improved estimation of selective channels in an OFDMA system with dedicated pilot tones The present disclosure provides a method and apparatus of channel estimation for a wireless communication system. Dedicated pilot symbols transmitted over at least one time-frequency region for at least one user are received. Channel parameters are estimated for the... | 11/02/2010 |
| 7801556 | Tunable dual-antenna system for multiple frequency band operation A tunable dual-antenna system for multiple frequency band operation is disclosed, which allows a device to switch between multiple frequencies and/or multiple modes, such as CDMA and GSM. The system may comprise a tunable transmit antenna and a tunable receive anten... | 09/21/2010 |
| 7801248 | Interference suppression with virtual antennas A receiver suppresses co-channel interference (CCI) from other transmitters and intersymbol interference (ISI) due to channel distortion using “virtual” antennas. The virtual antennas may be formed by (1) oversampling a received signal for each actual antenna at... | 09/21/2010 |
| 7764594 | Multiple-access hybrid OFDM-CDMA system In one aspect of a multiple-access OFDM-CDMA system, the data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources... | 07/27/2010 |
| 7729714 | Method and apparatus for reverse link transmit beam-forming A method and system for reverse link transmit beam-forming. One method comprises using a plurality of antennas at an access terminal to wirelessly transmit signals to one or more base stations; receiving an input indicating a reverse link signal quality at the one o... | 06/01/2010 |
| 7693241 | Rake receiver finger assignment based on signal path concentration A rake receiver finger assignor is configured to assign a rake receiver finger to a time offset between identified signal path time offsets in accordance with a concentration of identified signal paths from a transmitter to a rake receiver. In accordance with the ex... | 04/06/2010 |
| 7693037 | Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading A method and system for adapting an effective spreading sequence in a wire-line or a wireless communication system using direct sequence spreading system is described. A station of the communication system determines a state of a communication channel, represented b... | 04/06/2010 |
| 7685495 | Apparatus and method for channel interleaving in communications system An apparatus and method for interleaving systematic bits and parity bits to generate an output sequence that can be transmitted in multi-slot packets from a base station to a remote station in a wireless communication system. The apparatus comprises a memory element... | 03/23/2010 |
| 7656843 | Feedback of channel quality information Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to improve the forward link data throughput. Over a channel quality ind... | 02/02/2010 |
| 7639999 | System for diverse path antenna selection System for diverse path antenna selection. A method is provided for receiving a signal in a communication device having first and second antennas. The method includes receiving a first version of the signal using the first antenna, and receiving a second version of ... | 12/29/2009 |
| 7623861 | Method and apparatus to optimize off-frequency pilot searching by wireless mobile station A wireless mobile telephone (400) is operated so as manage the performance of “off-frequency searches,” that is, searches for base station pilot signals that differ in frequency from the pilot signals in the mobile station's active set. Whenever frequency... | 11/24/2009 |
| 7623553 | Method, apparatus, and system for data transmission and processing in a wireless communication environment According to one aspect of the present invention, a method is provided in which indications of signal quality associated with each of the plurality of user stations are received. Multiple user stations (e.g., a first user station and a second user station) are selec... | 11/24/2009 |
| 7620029 | Parallel cell ID acquisition in frequency division multiple access systems This disclosure is directed to cell acquisition techniques for telecommunication systems that implement FDMA and TDMA techniques, such as GSM systems. The techniques make efficient use of processing time in order to accelerate the cell acquisition process. Upon acqu... | 11/17/2009 |
| 7590164 | Method and apparatus for efficient use of communication resources in a communication system The frame of data is partitioned into a plurality of portions of data symbols. A plurality of channel elements is assigned to demodulate data symbols of correspondingly the plurality of portions of data symbols. The number of the plurality of portions of data symbol... | 09/15/2009 |
| 7421016 | Method and apparatus for testing wireless communication channels Techniques to test a wireless communication link. A traffic channel is tested via a test data service option (TDSO) that may be negotiated and connected similar to other services. Test parameters values may be proposed, accepted or rejected, and negotiated. Test dat... | 09/02/2008 |
| 7237007 | Method and system for flow control between a base station controller and a base transceiver station According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer wind... | 06/26/2007 |
