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QUALCOMM Incorporated Patents
Assignee:
QUALCOMM Incorporated
Address:
San Diego, CA
No. of patents:
5295
Patents:


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Patent Number Title Of Patent Date Issued
8208364 MIMO system with multiple spatial multiplexing modes June 26, 2012
A MIMO system supports multiple spatial multiplexing modes for improved performance and greater flexibility. These modes may include (1) a single-user steered mode that transmits multiple data streams on orthogonal spatial channels to a single receiver, (2) a single-user non-steered
8208316 SRAM yield enhancement by read margin improvement June 26, 2012
A sense margin is improved for a read path in a memory array. Embodiments improve the sense margin by using gates with a lower threshold voltage in a read column multiplexer. A cross coupled keeper can further improve the sense margin by increasing a voltage level on a bit line storing a
8208291 System and method to control a direction of a current applied to a magnetic tunnel junction June 26, 2012
A system and method to control a direction of a current applied to a magnetic tunnel junction is disclosed. In a particular embodiment, an apparatus comprises a magnetic tunnel junction (MTJ) storage element and a sense amplifier. The sense amplifier is coupled to a first path and to
8208290 System and method to manufacture magnetic random access memory June 26, 2012
A system and method to manufacture magnetic random access memory is disclosed. In a particular embodiment, a method of making a magnetic tunnel junction memory system includes forming a portion of a metal layer into a source line having a substantially rectilinear portion. The method
8208273 RF shielded enclosure for automated testing June 26, 2012
An apparatus for restricting the flow of RF energy when attached to a tester wherein test equipment is positioned within the apparatus, comprising: a lid; a base; hinges for attaching the lid to the base; EMI gasket material for sealing seams; latches for attaching the lid to the bas
8208044 Bad pixel cluster detection June 26, 2012
Systems and methods of bad pixel cluster detection are disclosed. In a particular embodiment, a method includes determining a correlation value corresponding to a correlation coefficient between image data and at least one bad pixel cluster pattern, and detecting a bad pixel cluster
8207972 Quick pixel rendering processing June 26, 2012
A three-dimensional (3D) graphics pipeline which processes pixels of sub-screens in the last stage (pixel rendering) in parallel and independently. The sub-screen tasks are stored in a list in a shared memory. The shared memory is accessed by a plurality of processing threads designa
8207569 Intertwined finger capacitors June 26, 2012
Capacitive structures in integrated circuits are disclosed. The capacitive structures are formed on a substrate. Each capacitive structure includes a first conductive finger and a second conductive finger. The first and second conductive fingers are arranged in parallel with each oth
8204530 Power control for wireless communication systems June 19, 2012
Techniques for controlling transmit power of a terminal are described. The terminal may send a first transmission (e.g., for pilot or signaling) on the reverse link, receive feedback (e.g., a power control command or an erasure indicator) for the first transmission, and adjust a referenc
8204505 Managing network-initiated quality of service setup in mobile device and network June 19, 2012
Systems, methodologies, and devices are described that manage employment of network (NW)-initiated resource allocation and user equipment (UE)-initiated resource allocation for a UE. To employ NW-initiated resource allocation, a core network can transmit an indicator to the UE indica
8204495 Method and apparatus for the discovery of radio access network elements and exchange of capabili June 19, 2012
The present apparatus comprises a radio access network element having at least one processor, and at least one memory operably connected to the at least one processor, whereby the radio access network element is adapted to execute instructions stored in the memory comprising discovery of
8204475 Method and apparatus for preventing unauthorized use of computing devices June 19, 2012
Methods and devices for preventing unauthorized use of mobile devices allow users to create a mobile device identification number (MDIN) which must be entered before mobile devices can access a new removable memory unit. Upon activation a mobile device may check an identifier of an i
8204460 Method and system for precise transmit power adjustment in wireless communication systems June 19, 2012
A method for precise transmit power adjustment in a wide personal area network (WPAN) is provided that includes coarse adjusting a power level of the radio signal by adjusting a gain setting of an amplifier that is used to power the radio signal, and fine adjusting the power level of the
8204444 Adjustable transmission filter responsive to internal sadio status June 19, 2012
An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on at least one of a geographic location, frequency spectrum information, and a status of a secondary internal radio. The control signal may shift a center of the pass
8204443 Adjustable receive filter responsive to internal radio status June 19, 2012
An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on at least one of a geographic location, frequency spectrum information, and a status of a secondary internal radio. The control signal may shift a center of the pass
8204154 DC offset calibration June 19, 2012
A mobile communication device comprises a plurality of receivers, a phase detection circuit, and a DC offset calibration circuit. Each receiver comprises a receiver chain and a divide-by-2 circuit that supplies Local Oscillating (LO) signal for the receiver chain. The LO signals leak to
8204149 Spatial spreading in a multi-antenna communication system June 19, 2012
Spatial spreading is performed in a multi-antenna system to randomize an "effective" channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain N.sub.D
8204131 Method and system for rapid and smooth selection of digitally compressed video programs June 19, 2012
A system and method for rapid selection and viewing of video programs in digital video broadcasting are disclosed. In one example of the invention, a parser sorts the data stream from different video programs and the sorted data are then stored in a fast cache memory. There are at le
8204079 Joint transmission of multiple multimedia streams June 19, 2012
A system and method for partitioning a bandwidth of a single channel among plural multimedia streams in a time varying manner. The partitioning is undertaken by dynamically establishing first and second bit rates respectively associated with first and second multimedia streams.
8203998 System and methods for cancelling interference in a communication system June 19, 2012
Systems and methods for canceling interference in a communication system are described. A signal that comprises current data from a current access point and secondary data from one or more secondary access points is received. The secondary data is demodulated using one or more secondary
8203992 Methods and systems for implementing CDMA-based dedicated control channels in an OFDMA-based net June 19, 2012
A method for efficiently transmitting control information may include allocating a portion of orthogonal frequency division multiple access (OFDMA) frames for transmission of a code division multiple access (CDMA) based signal. The CDMA-based signal may include data from one or more
8203978 Multi-mode terminal in a wireless MIMO system June 19, 2012
A user terminal supports multiple spatial multiplexing (SM) modes such as a steered mode and a non-steered mode. For data transmission, multiple data streams are coded and modulated in accordance with their selected rates to obtain multiple data symbol streams. These streams are then
8203961 Methods and apparatus for providing modified timestamps in a communication system June 19, 2012
Methods and apparatus for providing modified timestamps in a communication system. In an aspect, a method includes receiving one or more packets associated with a selected destination, computing an average relative delay associated with each packet, determining a modified timestamp a
8203960 Methods for sending small packets in a peer-to-peer (P2P) network June 19, 2012
An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented amo
8203564 Efficient 2-D and 3-D graphics processing June 19, 2012
Techniques for supporting both 2-D and 3-D graphics are described. A graphics processing unit (GPU) may perform 3-D graphics processing in accordance with a 3-D graphics pipeline to render 3-D images and may also perform 2-D graphics processing in accordance with a 2-D graphics pipel
8201039 Combining grant, acknowledgement, and rate control commands June 12, 2012
Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated,
8200917 Multi-media processor cache with cache line locking and unlocking June 12, 2012
The disclosure relates to techniques for locking and unlocking cache lines in a cache included within a multi-media processor that performs read-modify-write functions using batch read and write requests for data stored in either an external memory or an embedded memory. The techniques
8200856 Flow control for universal serial bus (USB) June 12, 2012
Techniques for performing flow control in Universal Serial Bus (USB) are described. In one design, a USB host sends token packets to a USB device to initiate data exchanges with the USB device. The USB device determines that it is incapable of exchanging data with the USB host, e.g., bec
8200736 Virtual SIM card for mobile handsets June 12, 2012
A system and method for providing a capability to backup cellular telephone provisioning information and personal data from a mobile handset on a server. A user initializes an account with a service provider with authentication credentials and backs up provisioning information and pe
8200446 Waveform correlation result processing methods and apparatuses June 12, 2012
Methods and apparatus are provided for use in devices adapted to perform waveform correlation result processing. An exemplary method may include accessing a plurality of collected measurement values stored in memory, establishing at least one combined measurement value based, at least in
8200371 Prediction engine to control energy consumption June 12, 2012
In a particular embodiment, an apparatus is disclosed that includes at least one controllable energy consuming module and a prediction engine. The prediction engine includes detection logic configured to determine a historical usage pattern of the at least one controllable energy con
8200217 Method and apparatus for channel scanning that improves acquisition probability and power consum June 12, 2012
A method and apparatus for channel acquisition using a mobile station include obtaining geographic information of at least one wireless communication systems using one or more systems, respectively. The one or more channels are prioritized on a preferred roaming list based on the geo
8200187 Cellular telephone credit management June 12, 2012
A system and method are provided for controlling a cellular telephone account User Terminal (UT). The method includes: registering a UT with an account in a cellular telephone network; uploading a credit for cellular telephone network services to the UT from a second party; and, converti
8200185 Method and apparatus for supporting emergency calls (eCalls) June 12, 2012
Techniques for supporting eCalls are described. In an aspect, an eCall indicator may be used to indicate an eCall being established. In one design, a terminal may generate a message including an eCall indicator and may send the message to originate an eCall. The eCall indicator may i
8200173 Gated RF control channel demodulation methods and apparatuses June 12, 2012
Methods and apparatuses are provided for use in devices that are enabled to receive control channel information over a link having a plurality of interlaced slots. The methods and apparatuses may be implemented to selectively disable/enable one or more circuits within a receiver path at
8199842 Time-domain transmit and receive processing with channel EIGEN-mode decomposition for MIMO syste June 12, 2012
Techniques for processing a data transmission at the transmitter and receiver. In an aspect, a time-domain implementation is provided which uses frequency-domain singular value decomposition and "water-pouring" results to derive time-domain pulse-shaping and beam-steering solutions a
8199829 Decoding system and method June 12, 2012
Decoding systems and methods are disclosed. In a particular embodiment, a video decoder system includes a first decoding path and a second decoding path configured to decode at a slower average rate than the first decoding path. The video decoder system includes a dynamic switch conf
8199812 Adaptive upsampling for scalable video coding June 12, 2012
This disclosure describes techniques for coding information in a scalable video coding (SVC) scheme that supports spatial scalability. In one example, a method for coding video data with spatial scalability comprises upsampling base layer residual video data to a spatial resolution o
8199766 Methods for sending small packets in a peer-to-peer (P2P) network June 12, 2012
An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented amo
8199758 Variable abort timer June 12, 2012
Depending on channel conditions, a variable abort timer can be set in relation to wireless communication of data packets. Additionally, available buffer size can be evaluated and used to set a length of the variable abort timer. When a packet sequence is sent, packets can become lost
8199739 Return link time adjustments in FDD OFDMA or SC-FDM systems June 12, 2012
A method for adjusting timing in a Frequency Division Multiplexing (FDM) system, including receiving a request to perform a timing correction, generating a time domain FDM symbol, and controlling the timing correction in the time domain FDM symbol by at least one of adjusting a lengt
8199716 Method and system for performing handoff in wireless communication systems June 12, 2012
The structure of a time-multiplexed physical channel is used to time inter-frequency or inter-system search excursions. A mobile station that receives an instruction to perform a search excursion prepares for the search excursion by detecting the first radio frame of a message frame.
8199696 Method and apparatus for power control in a wireless communication system June 12, 2012
Method and apparatus for power control in a packet-data switched communication system by adapting a transmission energy setpoint to transmission quality and adjusting the retransmission energy setpoint accordingly. In one embodiment, the retransmission energy setpoint is adjusted as
8199688 Signaling and management of broadcast-multicast waveform embedded in a unicast waveform June 12, 2012
Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a
8199673 Methods and apparatus for discovery of peer to peer overlaying networks June 12, 2012
Methods and apparatus for discovery of peer-to-peer overlay networks. In an aspect, a method includes receiving a request to discover information about overlay networks of interest, generating a search query that comprises at least one parameter associated with the overlay networks of
8199663 Robust header compression/decompression methods and systems June 12, 2012
A method for a wireless communication system is provided. The method includes communicating a packet of network profile information, where the packet is communicated across a network in association with application data. The method also includes automatically reporting capability par
8199661 Method and apparatus for processing supplemental and non supplemental assignments June 12, 2012
A method and apparatus for processing supplemental and non supplement assignments in a wireless communication system are described. A forward link assignment block (FLAB) is received from a shared signaling medium access control (SS MAC) protocol. It is determined if a medium access
8199634 Signaling method in an OFDM multiple access system June 12, 2012
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 instants in the symb
8199602 Systems and methods for dynamic power savings in electronic memory operation June 12, 2012
Reduction of line delay is accomplished in an electronic memory by segmenting portions of the memory and only enabling certain memory portions depending upon where the memory is to be accessed. In one embodiment, the bit lines are segmented using latch repeaters to control the bit li
8199034 Method and apparatus for soft symbol determination June 12, 2012
A method for wireless communication is disclosed that includes selecting a plurality of probabilities for a symbol based on a bit-to-symbol mapping; calculating a conditional mean of the symbol based on the plurality of probabilities; and, generating a signal representative of the sy
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