| Patent Number |
Title Of Patent |
Date Issued |
| RE39177 |
Method and apparatus for performing soft hand-off in a wireless communication system |
July 11, 2006 |
| A method and apparatus for providing soft handoff in a mobile communication system. In current systems is that the members of active set are determined in accordance with comparisons of measured pilot energy with fixed thresholds. However, the value of providing a redundant communica |
| D511507 |
Portable electronic device |
November 15, 2005 |
|
| 7603141 |
Multi-antenna station with distributed antennas |
October 13, 2009 |
| A multi-antenna station with distributed antennas and capable of providing good performance for terminals distributed throughout the coverage area of the multi-antenna station is described. The multi-antenna station includes multiple antennas, a controller, and at least one transmitter |
| 7596354 |
Optimizing polarization of forward link |
September 29, 2009 |
| A mechanism that enables a gateway to dynamically determine which of two transmission signal polarizations is best received by a wireless communication device having a nominally linear antenna. A first pilot and second pilot signals, having different polarizations and orthogonally en |
| 7489746 |
MIMO receiver using maximum likelihood detector in combination with QR decomposition |
February 10, 2009 |
| A MIMO receiver is provided with a preprocessor for performing QR decomposition of a channel matrix H wherein the factored reduced matrix R is used in place of H and Q*y is used in place of the received vector y in a maximum likelihood detector ("MLD"). The maximum likelihood detector |
| 7489240 |
System and method for 3-D position determination using RFID |
February 10, 2009 |
| Determining the location of wireless devices is improved by storing location information in RFID devices. As RFID devices come within range of each other they examine a confidence level associated with each others location information. The RFID device may update their location inform |
| 7487362 |
Digital authentication over acoustic channel |
February 3, 2009 |
| Apparatus and method are disclosed for digital authentication and verification. In one embodiment, authentication involves storing a cryptographic key and a look up table (LUT), generating an access code using the cryptographic key; generating multiple parallel BPSK symbols based upo |
| 7477632 |
Subscriber management and service profiles |
January 13, 2009 |
| The subject invention relates to methods and systems for determining wireless network service characteristics involving receiving at an access point (AP) a request from a station (STA) for wireless network access, obtaining a first identifier specifying a wireless local area network |
| 7428426 |
Method and apparatus for controlling transmit power in a wireless communications device |
September 23, 2008 |
| Systems and techniques for wireless communications are disclosed. The systems and techniques include the generation of a signal, the setting of an average transmit power of the signal transmission as a function of a first threshold relating to out-of-band emissions, the clipping of the |
| 7418046 |
Pilot transmission and channel estimation for multiple transmitters |
August 26, 2008 |
| Each transmitter is assigned a time-only pilot code, a frequency-only pilot code, or a time-frequency pilot code to use for pilot transmission. The pilot codes may be pseudo-random, orthogonal, and/or cyclic-shift codes. To obtain a channel estimate for a transmitter using a time-fre |
| 7349679 |
Integrated power amplifier |
March 25, 2008 |
| A power amplifier develops a modulated high power signal by summing the outputs of multiple voltage controlled oscillators. A phase control circuit synchronizes the phase relationship of multiple voltage controlled oscillators. The voltage control oscillators provide amplitude modula |
| 7328159 |
Interactive speech recognition apparatus and method with conditioned voice prompts |
February 5, 2008 |
| An improved system for an interactive voice recognition system (400) includes a voice prompt generator (401) for generating voice prompt in a first frequency band (501). A speech detector (406) detects presence of speech energy in a second frequency band (502). The first and second f |
| 7324836 |
Non-wireless communication using sound |
January 29, 2008 |
| Method and apparatus are disclosed to allow non-wireless transmission or reception of data from one device to at least another device. More particularly, in one embodiment, a jack of a first device is configured to receive incoming analog signals encoded with digital data from the se |
| 7271465 |
Integrated circuit with low-loss primary conductor strapped by lossy secondary conductor |
September 18, 2007 |
| Techniques for "strapping" a primary conductor with a secondary conductor in an integrated circuit (IC). The IC includes a number of circuit elements interconnected by a secondary conductor through a number of vias disposed at a number of locations for coupling the circuit elements as an |
| 7245666 |
Soft symbol decoding for MIMO communication systems with reduced search complexity |
July 17, 2007 |
| Soft symbol decoder algorithms for multiple input, multiple output (MIMO) receivers reduce the search complexity by searching over fewer than all possible combinations of transmitted symbols to compute log metrics for each transmitted bit from each transmit antenna. In one algorithm, a |
| 7245600 |
Method and apparatus for determining reverse link load level for reverse link data scheduling in |
July 17, 2007 |
| In a communication system (100), a method and apparatus provides for determining reverse link load level for reverse link data rate scheduling. The method and apparatus include determining a number of locked fingers (208) on a reverse link signal in a receiver portion (200) of a base |
| 7203319 |
Apparatus and method for installing a decryption key |
April 10, 2007 |
| An apparatus for installing a decryption key is initially arranged so that a decryption algorithm received by a control processor is passed via a first interface path to a decryption processor. The algorithm is installed in the decryption processor together with a program decryption |
| 7187708 |
Data buffer structure for physical and transport channels in a CDMA system |
March 6, 2007 |
| A buffer structure for storing symbols received via a number of (e.g., physical or transport) channels. Each channel is associated with a particular time interval (e.g., a radio frame period or a transmission time interval (TTI)) over which the received symbols are processed (e.g., i |
| 7184954 |
Method and apparatus for detecting bad data packets received by a mobile telephone using decoded |
February 27, 2007 |
| A speech signal is decoded by a vocoder and the reconstructed speech samples are provided to a decoded frame check unit. The decoded frame check unit examines the energy of the reconstructed speech and compares the energy of the reconstructed speech to a range of acceptable energy va |
| 7174190 |
Serial bus interface for direct conversion receiver |
February 6, 2007 |
| A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/analog circuitry, and a |
| 7170924 |
System and method for adjusting combiner weights using an adaptive algorithm in wireless communi |
January 30, 2007 |
| Method and apparatus to compute the combiner coefficients for wireless communication systems using an adaptive algorithm. One embodiment trains the weights on a signal known a priori that is time multiplexed with other signals, such as a pilot signal in a High Data Rate, HDR, system, |
| 7170876 |
Outer-loop scheduling design for communication systems with channel quality feedback mechanisms |
January 30, 2007 |
| Methods and apparatus are presented for dynamically adjusting parameters of an outer-loop algorithm, which is used to determine the feasibility of a transmission format. The parameters of the outer-loop algorithm are adjusted according to channel conditions. In one embodiment, an era |
| 7165099 |
Dynamically downloading and executing system services on a wireless device |
January 16, 2007 |
| An applet requiring a virtual machine is downloaded to a wireless device. A software platform on the device determines that a virtual machine is used by the applet during execution. Without additional user interaction, the virtual machine is downloaded to the wireless device. This allows |
| 7164907 |
Automated over the air plug-in device recognition and software driver download |
January 16, 2007 |
| A system and method for automatically detecting a peripheral device in communication with a wireless device, such as a wireless telephone, and requesting a driver for the peripheral from a remote server via a wireless communications network. After the driver is received and installed |
| 7162224 |
System and method for piggybacking data across an open data channel of a wireless device |
January 9, 2007 |
| A system, method, and program for transmitting data across an idle open communication channel from a wireless device. The wireless device includes a computer platform and a plurality of device resources that selectively utilize a open communication channel to communicate with other d |
| 7158760 |
Frequency synthesizer with selectable preconfigured synthesizer characteristics |
January 2, 2007 |
| A system and method are disclosed for configuring a frequency synthesizer in a transceiver. Configuring a frequency synthesizer in a transceiver includes specifying a selection bit sequence wherein the selection bit sequence corresponds to a predetermined combination of transceiver c |
| 7158537 |
Method and apparatus for providing configurable layers and protocols in a communications system |
January 2, 2007 |
| The layers and protocols of an air interface layering architecture are designed to be modular and can be modified and upgraded to support new features, perform complex tasks, and implement additional functionality. Prior to commencement of data communication between a first entity (e.g., |
| 7155726 |
System for dynamic registration of privileged mode hooks in a device |
December 26, 2006 |
| Methods and apparatuses are provided for dynamic registration of privileged mode hooks in a device that can operate in a privileged mode and a non-privileged mode. A data structure is provided which maps between identifiers and functions. An available slot in the data structure is us |
| 7155222 |
Method for performing RR-level registration in a wireless communication system |
December 26, 2006 |
| Techniques to reduce the amount of registration required by a mobile station in a wireless communication system, especially if the registration zones are defined to be small areas. In one scheme, a mobile station registers (e.g., at RR-level) with a network entity (e.g., a base stati |
| 7155203 |
Method and apparatus for billing for usage-based group communication between wireless devices |
December 26, 2006 |
| A method and apparatus for billing for the usage of direct group communication services, such as push-to-talk services. A direct group communication service provider sets up an account for each direct communication service user whereby the user can establish a target group of wireles |
| 7151946 |
Controller for reducing latency in a group communication network |
December 19, 2006 |
| A method and apparatus for reducing perceived latency in a group communication network provides for receiving a request from a user of a communication device wishing to initiate a group call, receiving media from the user before completely processing the request, and buffering the re |
| 7139559 |
System and method for handshaking between wireless devices and servers |
November 21, 2006 |
| A system, method, and computer program for data communication, or "handshaking," between wireless devices and a server on a wireless network. Upon a wireless device communicating with the server, the server obtains data from the wireless device indicative of wireless device attribute |
| 7139259 |
Method and apparatus for conveying reports for SMS messages in wireless communication systems |
November 21, 2006 |
| Techniques for conveying reports for SMS messages in wireless communication networks that utilize CDMA air interface (e.g., GSM1x and CDMA networks). Two new messages SMS Deliver Report Message and SMS Submit Report Message are defined for CDMA SMS. These report messages may be used |
| 7136648 |
Candidate system search and soft handoff between frequencies in a multi-carrier mobile communica |
November 14, 2006 |
| The present invention encompasses a mobile station comprising a transmitter for transmitting outgoing signals from the mobile station and a receiver for receiving incoming signals, the receiver coupled to the transmitter and having N sub receivers, where N is an integer greater than |
| 7136428 |
Systems and techniques for measuring the performance of a communications system |
November 14, 2006 |
| Systems and techniques for measuring the performance of a communications channel is disclosed which includes receiving a signal from the communications channel, filtering the signal, estimating a bias introduced by the filtering of the signal, and computing a parameter of the communi |
| 7133222 |
Devices and methods for retaining a lens in a mobile electronic device |
November 7, 2006 |
| The described embodiments provide devices and methods for securing a lens member in a mobile electronic device. The lens member is positionable between a front housing and a rear housing of the device such that inner surfaces of the housings both exert a biasing force on the lens member |
| 7130626 |
Access terminal identification management |
October 31, 2006 |
| Access terminal identification management providing a minimum distance between subnets before reusing subnet identifiers. Mobility criteria evaluation determines when to reassign an access terminal identifier. In one embodiment, the mobility criteria is whether any member of the active |
| 7130599 |
Quadrature generator with image reject mixer |
October 31, 2006 |
| In an exemplary application, an apparatus according to a disclosed embodiment receives a radio frequency signal and outputs an intermediate frequency signal. Rejection of image components in the intermediate frequency signal is obtained without the need to preprocess the radio freque |
| 7130424 |
Systems and methods for utilizing an application from a native portable device within a non-nati |
October 31, 2006 |
| The disclosed systems and methods include a native portable communications device having an application module that modifies communications between the portable device and a non-native communications device connected to a non-native communications network. The application module transfor |
| 7130334 |
Method and apparatus for a pilot search using a matched filter |
October 31, 2006 |
| The present invention includes a cellular pilot signal detector or searcher for use in a cellular mobile communications unit. The signal detector uses a matched filter to detect a pilot signal transmitted from a cellular base station. The matched filter includes a plurality of taps a |
| 7130282 |
Communication device for providing multimedia in a group communication network |
October 31, 2006 |
| A system and method for providing group communication services is disclosed. Each of a plurality of group communication devices coverts media, such as video, audio, image and/or data into data packets suitable for transmission over a data network, such as the Internet. The data packe |
| 7127655 |
Methods and apparatus to optimize delivery of multicast content using probabilistic feedback |
October 24, 2006 |
| Methods and apparatus to optimize delivery of multicast content using probabilistic feedback. A method is provided for transmitting data from a server to a plurality of receiving terminals. The method includes transmitting the data from the server to the plurality of receiving termin |
| 7127654 |
Method and an apparatus for a quick retransmission of signals in a communication system |
October 24, 2006 |
| A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the p |
| 7127512 |
Method and apparatus for two-phase commit in data distribution to a web farm |
October 24, 2006 |
| Various methods and apparatus for synchronizing data between members of a web farm are disclosed. The web farm may include a primary member and at least one backup member. The web farm members may include modules for determining whether new data is available to the web farm; placing the |
| 7127447 |
Method and apparatus for preferred roaming list compression |
October 24, 2006 |
| Techniques for efficient storage and retrieval of Preferred Roaming Lists are disclosed. In one aspect, PRL entries are stored in two tables. One table contains records that are common to two or more PRL entries. Another table stores any information that is unique to a PRL entry, as |
| 7120794 |
System for invoking a privileged function in a device |
October 10, 2006 |
| System for invoking a privileged function in a device. The system includes a method that allows an application to invoke a function on a device, wherein the device includes at least two operating modes comprising a privileged mode and a non-privileged mode, and the function executes in |
| 7120429 |
System and method for licensing applications on wireless devices over a wireless network |
October 10, 2006 |
| A system and method for controlling software applications on one or more wireless devices where each wireless device is in selective communication with one or more application managing servers over a wireless network. Each wireless device has one or more selectively executable resident |
| 7117017 |
Wireless communication system with base station beam sweeping |
October 3, 2006 |
| A method and apparatus for wireless communications wherein a base station transmits a signal to sending data to a subscriber station through a signal beam that sweeps through the coverage area of the base station. User data addressed to the subscriber station is buffered until the si |
| 7117000 |
Method and apparatus for exchanging air-interface information during a dormant packet data sessi |
October 3, 2006 |
| Methods and apparatus for exchanging information with a dormant target communication device provide for locating a dormant target communication device by a wireless infrastructure, forwarding information to the dormant target communication device by the wireless infrastructure, and a |
| 7114153 |
Method and apparatus for continuation-passing in a virtual machine |
September 26, 2006 |
| Methods and apparatus for continuation passing in a virtual machine (VM). A method is provided for operating a virtual machine to provide continuation passing in a wireless device. The virtual machine comprises a stack memory. The method comprises encountering a context-creating trig |
