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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8145132 | Method and apparatus for reducing frequency space from frequency search A method and apparatus for reducing frequency space from code space search is disclosed in a wireless network. The method and apparatus reduces the frequency space without compromising the probability of detection, so that user equipment can expedite system acquisit... | 03/27/2012 |
| 8098780 | 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... | 01/17/2012 |
| 8044734 | Method and apparatus for mitigating VCO pulling Techniques for mitigating VCO pulling are described. In an aspect, VCO pulling may be mitigated by (i) injecting an oscillator signal, which is a version of a VCO signal from a VCO, into a transmitter and (ii) using coupling paths from the transmitter to the VCO to ... | 10/25/2011 |
| 8023410 | Messages and control methods for controlling resource allocation and flow admission control in a mobile communications system Methods and apparatus for aggregating IP packets over an access link between a wireless access router and a core node and for managing resource allocation to access link packet aggregates, e.g., as a function of the status of wireless communications links used to co... | 09/20/2011 |
| 8018833 | 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... | 09/13/2011 |
| 7999625 | Method and apparatus for calibrating oscillators A method of calibrating oscillators is disclosed that includes searching, in an array storing an operational characteristic of the oscillator, for an index value that is associated with an output of the oscillator; determining that the output is within a predetermin... | 08/16/2011 |
| 7965688 | Signal splitting method for limiting peak power in a CDMA system The invention is a method for limiting the peak transmit power in a CDMA communication system. At least one of first and second high transmit power regions are separated into a plurality of high transmit power subregions. The high transmit power subregions of the pl... | 06/21/2011 |
| 7953424 | Apparatus and method for improving paging performance while simultaneously operating in different types of communication networks A system and method of improving wireless communications between a wireless communication device and both a first network supporting voice and data services and a second network supporting packet data services. The method comprises providing the WCD with a primary t... | 05/31/2011 |
| 7933256 | Coherent single antenna interference cancellation for GSM/GPRS/EDGE A method for midamble estimation comprises the steps of receiving a burst of symbols, selecting a subset of the burst of symbols that comprises a first midamble symbol, calculating, for each symbol in the subset, a corresponding midamble estimation error, and determ... | 04/26/2011 |
| 7907600 | System and method for optimizing robust header compression (ROHC) in high delay variance environment A system and method for optimizing robust header compression between a compressor (residing at AN/AT) and a decompressor (residing at AT/AN), the method comprising initializing the compressor with an estimated jitter value before the compressor; notifying the decomp... | 03/15/2011 |
| 7903770 | Method and apparatus for canceling pilot interference in a wireless communication system Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pi... | 03/08/2011 |
| 7740625 | Surgical digitizing apparatus and method A surgical digitizing apparatus and procedure will typically involve a pad having discrete segments which may be arranged in a specific order to accommodate a particular procedure. The individual segments can then be used to accomplish both diagnostic and therapeuti... | 06/22/2010 |
| 7738906 | Method and apparatus for a control channel power allocation in a communication system An apparatus and a method for a control channel power allocation in a communication system are disclosed. The method of control channel power allocation in an embodiment includes sorting a plurality of access terminals in an order of increasing required medium acces... | 06/15/2010 |
| 7731725 | Surgical instrument with improved handle assembly A modular clip applier includes a cartridge containing multiple surgical clips, and a handle assembly for operating the cartridge to crimp one of the clips onto body tissue of a patient. The handle assembly has a scissors configuration with a bayonet coupling, and f... | 06/08/2010 |
| 7708713 | Insufflating optical surgical instrument An insufflating surgical instrument adapted for movement across an abdominal wall to insufflate an abdominal region of a patient is disclosed comprising a shaft having an insufflation channel extending along an axis between a proximal end and a distal end, the insuf... | 05/04/2010 |
| 7702001 | Time tracking in a non-negligible multipath spacing environment In an antenna diversity environment, the timing offset of the receiver's fingers are based on the timing offset of the received peaks of the base station transmit signals. In a system with non-negligible multipath spacing, the timing offset of the received peaks of ... | 04/20/2010 |
| 7660245 | FEC architecture for streaming services including symbol-based operations and packet tagging In a packet communications system stream data is transported over a channel over which packet loss or corruption is possible, with forward error correction (“FEC”) information. A transmitter receives source packets comprising source data, generates FEC source pa... | 02/09/2010 |
| 7653149 | Dynamic sectorization in a spread spectrum communication system A system and method for dynamically varying traffic channel sectorization within a spread spectrum communication system is disclosed herein. In a preferred implementation the system is operative to convey information to at least one specified user in a spread spectr... | 01/26/2010 |
| 7650887 | Wound retractor An incrementally adjustable wound retractor (100), having a first ring (102) with a diameter greater than the desired diameter of the wound incision. A second ring (104), having an annular axis and a diameter greater than the desired diameter of... | 01/26/2010 |
| 7631240 | Block ack protocols for wireless packet network Circuits, methods, and apparatus that reduce overhead and channel bandwidth required for data reception acknowledgment. One such system uses an enhanced block acknowledgment that acknowledges frames received for different data streams. Another system sends an acknow... | 12/08/2009 |
| 7630339 | Methods and apparatus of providing transmit diversity in a multiple access wireless communication system Methods and apparatus for providing channel diversity to wireless terminals (WTs) in a manner that reduces the latency between the time a WT encounters satisfactory channel conditions are described. A plurality of communications channels with different physical char... | 12/08/2009 |
| 7623590 | Diversity transmitter and diversity transmission method The present invention concerns a diversity transmitter, comprising: transmit symbol input means (1) for inputting a symbol matrix (b) to be forwarded to a transmit processing means (2), said transmit processing means comprising supplying means (2 | 11/24/2009 |
| 7623566 | Method and apparatus for demodulating signals processed in a transmit diversity mode Demodulator architectures for processing a received signal in a wireless communications system. The demodulator includes a number of correlators coupled to a combiner. Each correlator typically receives and despreads input samples (which are generated from the recei... | 11/24/2009 |
| 7616935 | Method and apparatus for matching receiver carrier frequency A carrier recovery method and apparatus using multiple stages of carrier frequency recovery are disclosed. A receiver uses multiple frequency generation sources to generate carrier signals used to downconvert a received signal. An analog frequency reference having a... | 11/10/2009 |
| 7606213 | Wireless MAC layer throughput improvements Methods, apparatuses, and systems are presented for transmitting data packets in a wireless network over a multi-access channel involving sequentially sending a plurality of medium access control (MAC) data packets from a transmitter over the multi-access channel, u... | 10/20/2009 |
| 7599336 | Method and apparatus for time-sharing channelization code in a CDMA communication system Techniques to time-share a common channelization code among multiple terminals for compressed mode transmissions. Each terminal is initially assigned a respective channelization code used to channelize data transmitted in non-compressed frames for the terminal. A co... | 10/06/2009 |
| 7599332 | Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices A modified preamble is used by extended devices that operate at higher rates, MIMO or other extensions relative to strict 802.11a-compliant devices. The extended devices might use multiple antenna techniques (MIMO), where multiple data streams are multiplexed spatia... | 10/06/2009 |
| 7593367 | Frequency scan for CDMA acquisition Techniques for reducing the time required for frequency scan in acquisition are disclosed. In one aspect, received power measurements are made at one or more of the possible carrier frequencies and system search is performed on one or more of those frequencies when ... | 09/22/2009 |
| 7590169 | Multipath interference reduction on pilot estimation with legacy system interoperability System, base station and method for supporting frequency domain equalization for frequency domain equalization-capable mobile stations and supporting improved channel estimation for both time domain and frequency domain equalization-capable mobile stations on the fo... | 09/15/2009 |
| 7583756 | Adaptive pilot filter for a wireless communication system Techniques to filter pilot symbols for a pilot in an “adaptive” manner to provide an improved estimate of the response of a communication channel. A received signal may experience different channel conditions at different times, and different multipaths may also... | 09/01/2009 |
| 7570697 | Advanced MIMO interleaving A MIMO transmitter including an interleaving system for parsing encoded bits to a plurality of spatial streams and a plurality of interleavers to interleave bits for spatial streams such that at least a first spatial stream uses a first stream interleaver that inter... | 08/04/2009 |
| 7567621 | Capacity based rank prediction for MIMO design The performance of a Single Code Word (SCW) design with low complexity MMSE receiver & rank prediction is similar to the Multiple Code Word (MCW) design with successive interference cancellation (SIC). A method of rank prediction comprises calculating MIMO channel m... | 07/28/2009 |
| 7561646 | Multi-antenna wireless receiver chains with vector decoding A receiver chain is provided for use in wireless data communication including a plurality of receive antennas and a vector Barker decoder or a CCK decoder. The vector Barker decoder operates on the plurality of received signals, preferably processed through a plural... | 07/14/2009 |
| 7542520 | Apparatus and method for implementing a low complexity digital modulator A low complexity digital modulator, which is particularly useful for providing Gaussian frequency shift keying (GFSK) modulation, includes a filter, an integrator and a look-up table (LUT) stage. The filter is configured to receive a series of impulses and to genera... | 06/02/2009 |
| 7519106 | Method and apparatus for maximizing standby time in remote stations configured to receive broadcast databurst messages A wireless telecommunications system includes a base station, a plurality of remote stations, a first channel for general page messages containing paging information and broadcast databurst message references, and an auxiliary channel for broadcast databurst notific... | 04/14/2009 |
| 7519044 | Channel structure for communication systems A channel structure for use in communication systems. Two sets of physical channels, one for the forward link and another for the reverse link, are utilized to facilitate communication of a variety of logical channels. The physical channels comprise data and control... | 04/14/2009 |
| 7508790 | Configuration of overhead channels in a mixed bandwidth system A method and apparatus for transmitting broadcast information in a multi-carrier communication system. The Sync Channel of the multi-carrier system is transmitted a 1.25 MHz channel bandwidth (i.e., over a single carrier), and to specify the preferred channels for t... | 03/24/2009 |
| 7473221 | Surgical access apparatus and method A surgical access device includes a single valve forming a seal with the body wall and providing an access channel into a body cavity. The valve has properties for creating a zero-seal in the absence of an instrument and an instrument seal with instruments. The valv... | 01/06/2009 |
| 7471702 | Methods and apparatus for implementing, using, transmitting, and/or receiving signals at least some of which include intentional null tones Base stations transmit strip signals using strip signal segments and self supporting modulation scheme techniques facilitating rapid channel estimate. A strip segment occupies one OFDM symbol time interval and uses a set of downlink tones; some, e.g., half, of the t... | 12/30/2008 |
| 7466749 | Rate selection with margin sharing Rate selection with margin sharing in a system with independent data stream rates is presented. Signal-to-Noise Ratio (SNR) estimates are obtained for each stream. Rates are selected for the streams based on the SNR estimates, such that at least one data stream has ... | 12/16/2008 |
