Irvine, CA, United States
Irvine, CA, United States

Broadcom Corporation is an American fabless semiconductor company in the wireless and broadband communication business. The company is headquartered in Irvine, California. Broadcom was founded by a professor-student pair Henry Samueli and Henry T. Nicholas III from the University of California, Los Angeles in 1991. In 1995, the company moved from its Westwood, Los Angeles, office to Irvine, California. In 1998, Broadcom became a public company on the NASDAQ exchange and now employs approximately 11,750 people worldwide in more than 15 countries.Broadcom is among Gartner's Top 10 Semiconductor Vendors by revenue. In 2012, Broadcom's total revenue was $8.01 billion. In 2013, Broadcom was No. 327 on the Fortune 500, climbing 17 places from its 2012 ranking of No. 344. Broadcom first landed on the Fortune 500 in 2009. Wikipedia.


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Methods and systems for enabling coexistence of multiple potentially interfering wireless components in a device are provided. A device may include a wireless module using a proprietary protocol and one or more modules using standardized protocols. The device further includes a coexistence arbitration module configured to arbitrate access to a shared communication medium among the wireless modules based on assertion of medium access requests by the modules and the associated priority of the asserted medium access requests. When multiple medium access requests have the same priority, precedence for access to the shared medium is determined based on additional criteria. The coexistence arbitration module may be a separate module or may be integrated into another module or distributed among the modules. The device may include a host processor for altering transmission characteristics of a module to increase the likelihood that another module can receive data within a reasonable time period.


Patent
Broadcom Corporation | Date: 2017-01-24

In some aspects, the disclosure is directed to methods and systems for encoding and sharing media clips via a social networking provider responsive to a user interaction via a single like or share button. Media may be constantly buffered as the user watches the program, such that the user need not initiate recording, enabling the user to quickly share amusing or media clips as they happen live. The device may decode, scale or subsample, and compress or re-encode the media to take up less space in a buffer of the device and/or to comply with copyright fair use requirements. Responsive to the user interaction or share command, the device may transfer the contents of the buffer to a social media service along with instructions to generate a post to the social network identifying the user, media, and/or buffer contents.


Currently, there exists low power Ethernet PHY solutions running at 10 Gbps over twin-ax cables with SFP+ connectors. However, the cost and range of these cables, along with the size of the connectors, do not match the requirements of in-vehicle networks. If the cable is replaced with a single pair of shielded or coaxial cables, a different mechanism is needed to provide bi-directional communication. Time division duplexing (TDD) can be used to emulate full duplex communication over the single pair of cables by taking turns, in time, transmitting data over the pair of cables in each direction.


Patent
Broadcom Corporation | Date: 2015-12-15

In some aspects, the disclosure is directed to methods and systems for coexistence management. A first access point is scheduled a time to begin transmission of a packet to a user device in an unlicensed frequency band using a first RAT. The time to begin the transmission is scheduled to avoid transmission overlap with a second access point using a second RAT in the unlicensed frequency band, and scheduled according to information from the second access point regarding operation in the unlicensed frequency band using the second RAT. One of the first and second RATs includes one of a WLAN RAT or a LTE based RAT, and another of the first and second RATs includes a remaining one of the WLAN RAT or the LTE based RAT, in one or more embodiments. The first access point receives updated information regarding operation in the unlicensed frequency band using the second RAT. Using the updated information, an updated time for the first access point to begin the transmission using the first RAT is determined, the updated time determined to avoid transmission overlap with the second RAT in the unlicensed frequency band. The first access point transmits, according to the determined updated time, the packet in the unlicensed frequency band using the first RAT.


Patent
Broadcom Corporation | Date: 2015-12-15

In some aspects, the disclosure is directed to methods and systems for coexistence management. A first access point operating in an unlicensed frequency band using a first RAT receives, from a second access point operating in the unlicensed frequency band using a second RAT, information regarding operation of the second access point in the unlicensed frequency band. It is determined, using the received information, that the first access point or the second access point is using a first share of the unlicensed frequency band that is below a predetermined threshold, indicating an imbalance of usage between the first RAT and the second RAT. A transmission parameter of the first access point for operating in the unlicensed frequency band using the first RAT is adjusted according to the determination. The first access point transmits the one or more packets using the adjusted transmission parameter, to cause the first access point or the second access point to use an updated share of the unlicensed frequency band that is closer to the predetermined threshold than the first share.


Patent
Broadcom Corporation | Date: 2016-03-31

A multi-cast multi-poll scheme for Bluetooth law energy (BLE) technology to be used by one or more mobile devices within a communication environment is disclosed. A broadcaster communication device comprises a transceiver that is configured to communicate with a plurality of recipient communication devices. The broadcaster communication device further comprises a controller that is configured to transmit a packet to the plurality of recipient communication devices and to receive, at predefined time intervals, responses from the plurality of recipient communication devices according to a pre-negotiated order without transmitting any additional packets.


Patent
Broadcom Corporation | Date: 2015-12-10

Aspects of the subject disclosure may include, for example, a power receiving unit that includes a first wireless power receiver configured to receive a first wireless power signal in accordance with a first wireless power standard and a second wireless power receiver configured to receive a second wireless power signal in accordance with a second wireless power standard. A controllable rectifier circuit is configured to rectify either the first wireless power signal or the second wireless power signal. The controllable rectifier circuit includes a rectifier circuit configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to determine whether the first wireless power signal or the second wireless power signal is received and to generate the switch control signals, based on whether the first wireless power signal or the second wireless power signal is received.


Patent
Broadcom Corporation | Date: 2017-02-08

According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.


Patent
Broadcom Corporation | Date: 2016-11-23

The present disclosure is directed to a network processor for processing high volumes of traffic provided by todays access networks at (or near) wireline speeds. The network process can be implemented within a residential gateway to perform, among other functions, routing to deliver high speed data services (e.g., data services with rates up to 10 Gbit/s) from a wide area network (WAN) to end user devices in a local area network (LAN).


Patent
Broadcom Corporation | Date: 2015-12-31

Wireless access points within a GPS-Unavailable environment can provide location services to user equipment devices within the environment provided that the access points are aware of their precise locations. In order to calibrate the locations of the wireless access points, a user equipment is moved to specific locations within the environment. At each of those locations, the user equipment transmits calibration signals that include the transmission location as well as a timestamp of the transmission time. Upon receipt by the access points, these signals are timestamped with a reception timestamp by a clock that is synchronized with the clock of the user equipment. After accumulating sufficient calibration information from a sufficient number of calibration locations, the access points can accurately determine their locations using trigonometric and other functions.

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