Irvine, CA, United States

Broadcom Corporation

www.broadcom.com
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: 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: 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: 2016-12-08

A device implementing a channel estimation for multi-channel transmissions system may include at least one processor configured to receive a set of signals over a set of channels, wherein each signal of the set of signals includes one of a set of channel estimation sequences. The set of channel estimation sequences may have been selected based at least in part on a signal quality metric, such as a peak-to-average power ratio, associated with a combination of the set of signals. The at least one processor may be further configured to perform a channel estimation for each channel based at least in part on the channel estimation sequence included in the signal received over each channel. In one or more implementations, the set of channel estimation sequences may be selected to minimize the signal quality metric associated with the combination of the plurality of channels.


Patent
Broadcom Corporation | Date: 2016-10-31

A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. A WDEV determines capabilities of other WDEVs and generates a first orthogonal frequency division multiple access (OFDMA) frame that includes resource unit (RU) allocation specified for the other WDEVs and media access controller (MAC) padding (e.g., selected based on capability of at least one of the other WDEVs. The WDEV then transmits the first OFDMA frame to the other WDEVs to be processed by them and then receives a second OFDMA frame from the other WDEVs based on the RU allocation.


Patent
Broadcom Corporation | Date: 2016-12-09

A system includes a network interface port. The network interface port may support a network interface port mode implementing one or more physical lanes. The network interface port mode may support one or more logical lanes transported over the physical lanes. The network interface port mode may implement transfer using a specified baud rate and signaling scheme. The logical architecture of the transmission and reception stack may be selected based on the operational parameters of the network interface port mode.


Patent
Broadcom Corporation | Date: 2016-12-20

The present disclosure is directed to apparatuses for preventing significant amounts of common mode noise from a PHY transceiver, such as an Ethernet PHY transceiver, from coupling to an unshielded twisted-pair cable. The apparatuses can provide common mode noise isolation, while limiting any common mode noise to differential mode noise (CM-DM) conversion. Common mode noise is generally ignored by a PHY transceiver that receives a differential data signal because of differential signaling. However, when common mode noise is converted to differential mode noise, then data errors can result. Thus, limiting any CM-DM conversion is important.

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