Patents Assigned to Broadcom
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Patent number: 8340344Abstract: Methods and systems for video transmission and processing with customized watermarking delivery are disclosed and may include watermarking data at a communication device utilizing received global positioning (GPS) data and communicating the watermarked video data to a receiving communication device. The receiving communication device may verify the watermarked data, and may determine whether to render the received watermarked data based on the verification. The communication device may include an edge device, and may receive a feedback signal communicated from the receiving communication device. The watermarking of subsequently processed data may be adjusted based on the received feedback signal, which may include GPS data and/or device parameters corresponding to the receiving communication device. The watermarked video data communicated to the receiving communication device may be adjusted based on one or more device parameters corresponding to the receiving communication device and/or GPS information.Type: GrantFiled: April 23, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Xuemin Chen, Michael Dove, David Rossmann, Thomas Quigley, Stephen Gordon, Jeyhan Karaoguz
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Patent number: 8341488Abstract: Accumulating LDPC (Low Density Parity Check) decoder. The accumulating decoding architecture described herein is applicable to LDPC codes operating on a parity check matrix, H, consisting of CSI (Cyclic Shifted Identity) sub-matrices (or matrix sub-blocks) or permuted identity sub-matrices (or matrix sub-blocks). In such a structure, the entire LDPC matrix is broken into square sub-matrices such that each sub-matrix consists of either a CSI sub-matrix or a permuted identity sub-matrix, or a null matrix. The iterative decoding process operates by updating of APP (a posteriori probability) or gamma (?) values and check edge message (?) values, and this by updating one or more individual rows within a number of sub-matrix rows (or all sub-matrix or sub-block rows) are processed in parallel. The amount of parallelism is specified by the designer and is typically an integer divisor of the sub-matrix (or sub-block) size.Type: GrantFiled: July 30, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Andrew J. Blanksby, Alvin Lai Lin
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Patent number: 8339372Abstract: A touch screen can be used in a communication device having a transceiver that communicates radio frequency (RF) signals with at least one remote station. The touch screen includes a display layer for displaying information. An inductor grid includes a plurality of inductive elements. A switch matrix selects a selected inductive element in response to a selection signal. A driver generates the selection signal and drives the selected inductive element to detect a touch object in proximity to the selected inductive element and generates touch screen data in response thereto. A plurality of coupling elements couple together a group of the plurality of inductive elements to form an antenna and further couple the antenna to the transceiver to send and receive the RF signals.Type: GrantFiled: April 20, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventor: Ahmadreza Reza Rofougaran
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Patent number: 8341440Abstract: Methods and systems for higher power PoE are provided. Embodiments overcome system limitations to PSE power scaling by using an endspan-midspan configuration which allocates power to the PD from both an endspan PSE and a midspan PSE. Embodiments are particularly suitable for deployed PoE systems having limited power supplies and/or ports designed for lower power. Further, embodiments include power management schemes to enable the proposed endspan-midspan configuration to intelligently allocate power between the endspan PSE and the midspan PSE according to required PD power.Type: GrantFiled: November 30, 2011Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventor: Wael William Diab
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Patent number: 8340068Abstract: A handheld wireless communication device (HWCD) establishes an ad hoc network comprising interconnected networks for a user. The HWCD gains access to content on a first device and controls communication of the content from the first device via the HWCD to a second device. The HWCD enables the second device to consume the content. The content may be streamed from the first device via the HWCD to the second device. The first device is a service provider network device or other network device. The access may be authenticated and/or secure. Secure access to the content is extended from the first device to the second device. The ad hoc network is configured and/or reconfigured until communication is complete. The HWCD comprises multiple wireless interfaces. The ad hoc network comprises a PAN, WLAN, WAN and/or cellular network. The HWCD may hand-off among base stations during communication of the content.Type: GrantFiled: June 8, 2012Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Mark Buer, Arya Behzad, Jeyhan Karaoguz, Alexander MacInnis, Thomas Quigley, John Walley
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Patent number: 8339258Abstract: A dual band antenna includes a far field antenna structure for facilitating the communication of first data with a remote device via far field signaling in a millimeter wave band. A near field antenna structure facilitates the communication of second data with a remote device via near field signaling in a near field band. The far field antenna structure and the near field antenna structure share at least one common antenna element.Type: GrantFiled: October 14, 2011Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 8341490Abstract: Virtual limited buffer modification for rate matching. A reduced-size memory module is employed within a communication device to assist in storage of log-likelihood ratios (LLRs) employed in accordance with turbo decoding. This architecture is also applicable to other types of error correction code (ECC) besides turbo code as well. The memory size is selected to match the number of coded bits (e.g., including information bits and redundancy/parity bits) that is included within a transmission. The received signals may be various transmissions made in accordance with hybrid automatic repeat request (HARQ) transmissions. When the LLRs calculated from a first HARQ transmission is insufficient to decode, those LLRs are selectively stored in the memory module. When LLRs corresponding to a second HARQ transmission is received, LLRs corresponding to both the first HARQ transmission and the second HARQ transmission are passed from the memory module for joint use in decoding.Type: GrantFiled: March 26, 2012Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Ba-Zhong Shen, Sirikiat Lek Ariyavisitakul, Tak K. Lee
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Patent number: 8340977Abstract: A system and method is described for compensating for the effects of a corrupted Continuously Variable Delta Slope Modulation (CVSD) decoder memory state on a decoded audio signal. In accordance with the system and method, a first estimated step size associated with a first frame of the decoded audio signal is calculated and a second estimated step size associated with a replacement frame generated to conceal bit errors in the first frame of the decoded audio signal is calculated. At least a second frame of the decoded audio signal is then modified based on the first estimated step size and the second estimated step size.Type: GrantFiled: May 6, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventor: Robert W. Zopf
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Patent number: 8340299Abstract: Methods and systems are disclosed for providing secured data transmission and for managing cryptographic keys. One embodiment of the invention provides secure key management when separate devices are used for generating and utilizing the keys. One embodiment of the invention provides secure storage of keys stored in an unsecured database. One embodiment of the invention provides key security in conjunction with high speed decryption and encryption, without degrading the performance of the data network.Type: GrantFiled: July 28, 2010Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Mark L. Buer, Joseph J. Tardo
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Patent number: 8341487Abstract: Low complexity communication device employing in-place constructed LDPC (Low Density Parity Check) code. Intelligent design of LDPC codes having similar characteristics there between allows for a very efficient hardware implementation of a communication device that is operative to perform decoding of more than one type of LDPC coded signals. A common basis of decoder hardware (e.g., decoder circuitry) is employed when decoding all of the various types of LDPC coded signals that such a communication device can decode. However, all of the decoder hardware is only employed to decode signals corresponding to the lowest code rate LDPC code supported by the communication device. A first subset of the decoder hardware is employed to decode signals corresponding to the second to lowest code rate LDPC code, a second subset (being less than the first subset) is employed to decode signals corresponding to the third to lowest code rate LDPC code, etc.Type: GrantFiled: April 29, 2010Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Andrew J. Blanksby, Ba-Zhong Shen, Jason A. Trachewsky
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Patent number: 8340503Abstract: Overlay to augment quality of currently playing media. The overlay operates to enhance the quality format of media so that it is output in a different quality format. As one example, when playing media content encoded in accordance with a standard definition television (SDTV) quality format, an appropriate overlay would operate to upgrade the quality format thereof to enhanced definition television (EDTV) quality format, high definition television (HDTV) quality format (or some other quality format). An appropriate overlay may also operate in accordance with audio content (e.g., upgrading a quality format of the audio content). With the advent of Blu-Ray discs (and other higher quality format discs), many individuals presently have libraries of media that are encoded with legacy/previous quality formats. An appropriate overlay that operates in conjunction with media encoded with a legacy/previous quality format allows the same content to be enjoyed in accordance with a newer/improved quality format.Type: GrantFiled: January 29, 2010Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, James D. Bennett
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Patent number: 8339311Abstract: A multi-standard single chip integrated within a multi-standard mobile device concurrently receives multi-standard radio frequency signals by corresponding two or more integrated radios. The multi-standard single chip generates full GNSS measurement comprising pseudo-range information using the received radio frequency signals. The multi-standard single chip comprises a GNSS radio and multiple non-GNSS radios such as Bluetooth. The full GNSS measurement is generated using GNSS radio frequency signals received by the integrated GNSS radio and communicated over, for example, Bluetooth radio. GNSS satellite reference information embedded in radio frequency signals received by the integrated non-GNSS radios is extracted to assist the full GNSS measurement. A full GNSS navigation solution for the multi-standard mobile device is generated internally to and/or externally to the multi-standard single chip depending on the location of a navigation engine.Type: GrantFiled: July 24, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: John Walley, Charles Abraham, Evan McCarthy, Kambiz Shoarinejad
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Patent number: 8339314Abstract: A GNSS enabled mobile device receives GNSS assistance data in a determined format from a central processing station communicatively coupled to a wide area reference network (WARN). The WARN comprises a first plurality of GNSS tracking stations from which usable signals are received by the central processing station, and a second plurality of GNSS tracking stations from which unusable or no signals are received by the central processing station. The central processing station generates the GNSS assistance data using a complete set of GNSS reference feeds of the WARN. The complete set of GNSS reference feeds comprises actual GNSS reference feeds from the first plurality of GNSS tracking stations and virtual GNSS reference feeds derived for the second plurality of GNSS tracking stations from processed actual GNSS reference feeds. The generated GNSS assistance data is reformatted into a determined format and is communicated to the GNSS enabled mobile device, accordingly.Type: GrantFiled: December 7, 2011Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: Charles Abraham, David Albert Lundgren
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Publication number: 20120322435Abstract: Aspects of a method and system for communication between a plurality of femtocells to mitigate interference between the femtocells are provided. In this regard, a first of a plurality of femtocells in a network may receive interference information from one or more other femtocells, one or more base stations, and/or one or more communication devices in the network. The first femtocell may determine configuration information for the first femtocell and one or more other femtocells in the network based on the communicated interference information. The first femtocell and the other femtocells in the network may be configured based on the determined configuration information. The interference between the plurality of femtocells may be mitigated based on configuring the first femtocell and the other femtocells in the network based on the determined configuration information.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: Broadcom CorporationInventors: Vinko Erceg, Charles Abraham, Xuemin Chen, Wael William Diab, Victor Hou, Jeyhan Karaoguz, Mark Kent
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Publication number: 20120322450Abstract: Aspects of a method and system for communicatively coupling WLAN and femtocell networks utilizing a FC-to-WLAN network bridge and controller are provided. In this regard, data communicated via one or more femtocells and one or more WLAN access points may be managed via a FC-to-WLAN network bridge and controller communicatively coupled between a femtocell controller and an access point controller. The femtocell controller may be operable to manage and/or control operation of the one or more femtocells, and the access point controller may be operable to manage and/or control operation of the one or more WLAN access points. The FC-to-WLAN network bridge and controller, the femtocell controller, and the access point controller may intemperate to manage data communicated between a first end-user device communicatively coupled to one of the femtocells and a second end-user device communicatively coupled to one of the access points.Type: ApplicationFiled: August 27, 2012Publication date: December 20, 2012Applicant: Broadcom CorporationInventors: Jeyhan KARAOGUZ, Nambirajan Seshadri, SR., Nicholas Ilyadis
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Publication number: 20120322394Abstract: An RF receiver and an RF transmitter, which are integrated in a single substrate, are operable to share a single reconfigurable filter to perform RF receiver filtering and RF transmitter filtering. The reconfigurable filter is configured to operate as a bandpass filter such as an image rejection bandpass filter for receiving RF signals by the RF receiver. The reconfigurable filter operates as a low pass filter for transmitting RF signals by the RF transmitter. The reconfigurable filter is configured to operate in a RF receiver filtering mode or a RF transmitter filtering mode, respectively. The reconfigurable filter is enabled to share configurable circuit components of the radio transceiver in both the radio frequency receiver filtering mode and the radio frequency transmitter filtering mode. The reconfigurable filter transitions between the radio frequency receiver filtering mode and the radio frequency transmitter filtering mode via reconfiguring the shared configurable circuit components.Type: ApplicationFiled: August 3, 2012Publication date: December 20, 2012Applicant: Broadcom CorporationInventor: Hung-Ming (Ed) CHIEN
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Publication number: 20120322367Abstract: Methods and systems are disclosed for determining the positioning of computer display devices using transmitted radio signals. A computing device may receive a radio signal transmitted by a display device. Based on the received radio signal, the computing device may determine the position of the display device. The computing device may then output a video signal to the display device, based on the determined position. The video signal may include a user interface for the computing device according to the determined position. Changes in the position of the display device may be detected based on radio signals, and the output video signal may be changed as well.Type: ApplicationFiled: June 14, 2011Publication date: December 20, 2012Applicant: Broadcom CorporationInventor: Tommy KEE
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Publication number: 20120321013Abstract: In one embodiment, a method for communicating data is provided. The method includes defining a data transmission unit (DTU) to be sent in an xDSL data stream, defining a retransmit container as a time slot that corresponds to the DTU, maintaining, in a retransmit container, a copy of the DTU and an index corresponding to the retransmit container, the retransmit container being maintained at the second device independently of the first device, transmitting the DTU in the xDSL data stream, determining whether the DTU should be retransmitted, and if the DTU should be retransmitted: identifying the DTU by the retransmit container and retransmitting a copy of the DTU as identified by the retransmit container when the DTU reaches a predetermined position in the retransmission buffer.Type: ApplicationFiled: June 21, 2012Publication date: December 20, 2012Applicant: Broadcom CorporationInventors: Benoit Christiaens, Miguel Peeters, Raphael Cassiers
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Publication number: 20120324115Abstract: Methods and systems for distributed infrastructure for streaming data via multiple access points. Aspects of one method may include apportioning multimedia information among a plurality of transmitting devices based on feedback channel information received from a destination receiving device by, for example, a transmission controller device. The transmitting devices may transmit the multimedia information to the destination receiving device. A transmitting device that may not be apportioned multimedia information may transmit a probing signal. The destination receiving device may generate feedback channel information for a transmitting device, for example, based on the multimedia information or the probing signal received from the respective transmitting device. The apportioning of the multimedia information may be dynamically adjusted based on updated feedback channel information received from the destination receiving device.Type: ApplicationFiled: August 28, 2012Publication date: December 20, 2012Applicant: BROADCOM CORPORATIONInventors: Jeyhan Karaoguz, Hooman Honary, Nambirajan Seshadri, Jason Trachewsky
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Publication number: 20120323088Abstract: A bio-medical unit includes a power harvesting module, a processing module, memory, and a transceiver. The power harvesting module converts an electromagnetic signal into a supply voltage, which powers the processing module, the memory, and the transceiver. The processing module communicates, via the transceiver, with an external device regarding a medical matter to obtain storage location information regarding the medical matter, wherein the storage location information indicates where data associated with the medical matter is at least partially stored. The processing module then aggregates the storage location information with patient data storage location information to produce updated patient data storage location information, wherein the patient data storage location information contains storage location information regarding previous medical matters associated with the host body. The memory stores the patient data storage location information and the updated patient data storage location information.Type: ApplicationFiled: August 6, 2012Publication date: December 20, 2012Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (Reza) Rofougaran