Raymond R Hayes

US Patent:

7035285, Apr 25, 2006

Filed:

Apr 4, 2001

Appl. No.:

09/826239

Inventors:

John T. Holloway - Atherton CA, US
Edward H. Frank - Portola Valley CA, US
Eric Ojard - San Francisco CA, US
Jason Alexander Trachewsky - Menlo Park CA, US
Tracy D. Mallory - Palo Alto CA, US
Henry S. Ptasinski - Mountain View CA, US
Raymond Hayes - Los Gatos CA, US
Kevin H. Peterson - Los Altos CA, US
Larry C. Yamano - Sunnyvale CA, US
Alan Corry - Santa Clara CA, US
Jay Pattin - Redwood City CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04J 3/26

US Classification:

370474

Abstract:

A method and signal therfor embodied in a carrier wave for sending information from transmit stations to receive stations over a transmission medium of a frame-based communications network. The information is sent in transmit frames having a frame format comprising a fixed rate header, followed by a variable rate payload, followed by a fixed rate trailer. The fixed rate header includes a preamble. The preamble has a repetition of four symbol sequences for facilitating power estimation, gain control, baud frequency offset estimation, equalizer training, carrier sensing and collision detection. The preamble also includes a frame control field. The frame control field has scrambler control information for frame scrambling initialization, a priority field to determine the absolute priority a transmit frame will have when determining access to the transmission medium, a payload encoding field which determines constellation encoding of payload bits in the variable rate payload, and a header check sequence for providing a cyclic redundancy check. The variable rate payload is transmitted pursuant to dynamic adjustable frame encoding parameters for improving transmission performance for a transmit frame being transmitted from a transmitting station to a receiving station. The header also includes a destination address field, a source address field and an ethertype field.

US Patent:

7574519, Aug 11, 2009

Filed:

Aug 1, 2003

Appl. No.:

10/633242

Inventors:

William E. Stafford - San Carlos CA, US
Raymond R. Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 15/173

US Classification:

709235, 370346, 370449

Abstract:

A method for interoperability of a network interface protocol with an Internet interface protocol begins by receiving a scan channel request of a plurality of channels that are in accordance with the network interface protocol. The method then continues by determining whether an Internet packet is being received via one of the plurality of channels when the channel scan request is received (i. e. , is a higher layer protocol supporting a current transmission). If so, the method continues by scanning at least one channel of the plurality of channels, but does not scan all of the plurality of channels at one time. The method continues after the scanning by tuning to the channel supporting the higher layer protocol communication to transmit at least one outbound Internet packet. The method then continues by scanning at least another channel of the plurality of channels.

US Patent:

7801098, Sep 21, 2010

Filed:

May 7, 2007

Appl. No.:

11/745443

Inventors:

Christopher J. Hansen - Sunnyvale CA, US
Angel Polo - San Diego CA, US
Steven Deane Hall - Olivenhain CA, US
Henry Ptasinski - San Francisco CA, US
Raymond R. Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 4/00

US Classification:

370338, 370328, 4555521, 455518

Abstract:

An integrated circuit radio transceiver and associated method comprises a multi-mode device operable to support personal area network communications as well as traditional wireless local area network communications. In one embodiment, IEEE 802. 11 protocol IBSS communications are used to transport Bluetooth communication data packets. Thus, the multi-mode device is operable to establish traditional BSS communications with an Access Point in addition to establishing peer-to-peer communications with another multi-mode device to transport the Bluetooth communications over the 802. 11 IBSS communication link.

US Patent:

7983216, Jul 19, 2011

Filed:

May 8, 2008

Appl. No.:

12/117323

Inventors:

Mahesh Iyer - Sunnyvale CA, US
Raymond R. Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 4/00
H04B 7/00

US Classification:

370329, 370338, 370341

Abstract:

A wireless interface circuit transceives packetized data between a host module and a first external device using a frequency spectrum, wherein the packetized data is formatted in accordance with a first wireless communication protocol and wherein the packetized data includes a request from the first external device to use at least a potion of the frequency spectrum for communication via a second wireless communication protocol. A coexistence management module generates a wireless interface schedule that includes a least one contention free period reserved for communication via the second wireless communication protocol, and generates schedule data, based on the wireless interface schedule, for transmission to a plurality of external devices including the first external device.

US Patent:

8041827, Oct 18, 2011

Filed:

Jun 29, 2009

Appl. No.:

12/493386

Inventors:

William E. Stafford - San Carlos CA, US
Raymond R. Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 15/16

US Classification:

709230, 370480

Abstract:

A method for interoperability of a network interface protocol with an Internet interface protocol begins by receiving a scan channel request of a plurality of channels that are in accordance with the network interface protocol. The method then continues by determining whether an Internet packet is being received via one of the plurality of channels when the channel scan request is received (i. e. , is a higher layer protocol supporting a current transmission). If so, the method continues by scanning at least one channel of the plurality of channels, but does not scan all of the plurality of channels at one time. The method continues after the scanning by tuning to the channel supporting the higher layer protocol communication to transmit at least one outbound Internet packet. The method then continues by scanning at least another channel of the plurality of channels.

US Patent:

8289948, Oct 16, 2012

Filed:

Jun 16, 2006

Appl. No.:

11/454207

Inventors:

Matthew Fischer - Mountain View CA, US
Raymond Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370351, 370392

Abstract:

Aspects of a method and system for bridging and routing offload in a multiport wireless system are presented. Various aspects of the system may include a wireless network interface subsystem that enables transcoding of at least a portion of a data packet received by the wireless network interface subsystem. The wireless network interface subsystem may enable transfer of the transcoded portion of the data packet from the wireless network interface subsystem to a wired network interface subsystem that is communicatively coupled thereto. The transcoded portion of the data packet may be compliant with a format utilized by the wired network interface subsystem.

US Patent:

8576793, Nov 5, 2013

Filed:

Jun 3, 2011

Appl. No.:

13/153111

Inventors:

Mahesh Iyer - Sunnyvale CA, US
Raymond R. Hayes - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 4/00
H04B 7/00

US Classification:

370329, 370338, 370341

Abstract:

A wireless interface circuit transceives packetized data between a host module and a first external device using a frequency spectrum, wherein the packetized data is formatted in accordance with a first wireless communication protocol and wherein the packetized data includes an indication that the first external device is configured to use at least a portion of the frequency spectrum for communication via a second wireless communication protocol. A coexistence management module generates a wireless interface schedule that includes a least one contention free period reserved for communication via the second wireless communication protocol, and generates schedule data, based on the wireless interface schedule, for transmission to a plurality of external devices including the first external device.

US Patent:

20060039305, Feb 23, 2006

Filed:

Aug 18, 2005

Appl. No.:

11/207661

Inventors:

Manoj Thawani - Sunnyvale CA, US
David Milne - Sunnyvale CA, US
Henry Ptasinski - San Francisco CA, US
Raymond Hayes - Los Gatos CA, US

International Classification:

H04J 3/22
H04B 7/00
H04J 3/16

US Classification:

370310000, 370466000

Abstract:

Certain aspects of a method for enabling exchange of information in a secure communication network may comprise encapsulating authentication enablement information comprising data for configuring at least one 802.11 client station. One or more 802.11 client stations may be configured without disrupting access to any other 802.11 client station that is already communicatively coupled to the network. The encapsulated authentication enablement information may be authenticated using an extensible authentication protocol (EAP).