Marvell International Limited

Marvellworld Trade Ltd.

Antimatter Research, Inc.

Gladys Yuen Yan Wong

Ken Yeung

George Lee

Robert Mack

Ronak Anjan Chokshi

Timothy Li

Zhenyu Zhang

Deepak Jain

Kapil Chhabra

Milind Kopikare

Todd Wheeler

Li-Fu Jeng

Timothy J Donovan

Todd Tokubo

Ken Kinwah Ho

Ninh Tran

James Armand Baldwin

Lei Zhang

Guo Qing Chen

Myung Cheol Kim

Jigang Chen

A gesture-control interface is disclosed, comprising a camera, an infrared LED flash, and a processor that identifies the finger motion in the image.

Gesture control device with fingertip identification

In response to determining that a Bluetooth inquiry phase or the Bluetooth paging phase will begin, a power save indicator signal is sent from a first communication device to a second communication device prior to a start of the Bluetooth inquiry phase or the Bluetooth paging phase. A gap between a first Bluetooth communication slot and a second Bluetooth communication slot is determined, and a time period within the gap is determined, where an end of the time period occurs at a defined amount of time prior to a start of the second Bluetooth communication slot. During the time period, one or more power save poll messages are sent from the first communication device to the second communication device, each first power save poll message prompting the second communication device to transmit a respective first WLAN packet to the first communication device.

Method and apparatus for maintaining a wireless local area network connection during a bluetooth inquiry phase or a bluetooth paging phase

A method for transmitting one or more first wireless local area network (WLAN) packets and one or more first Bluetooth (BT) packets. The method includes: prior to transmission of the one or more first wireless local area network (WLAN) packets, predicting a first time at which the transmission of the one or more first wireless local area network (WLAN) packets is going to end, and predicting a second time at which reception of one or more second Bluetooth (BT) packets is going to start; and simultaneously transmitting the one or more first wireless local area network (WLAN) packets and the one or more first Bluetooth (BT) packets in response to the first time being predicted to occur prior to the second time.

Apparatus to facilitate co-existence of bluetooth and wireless local area networks

A circuit processes requests to access an antenna, the requests from a plurality of wireless communication protocols components including (i) a first wireless communication protocol component and (ii) a second wireless communication protocol component. The circuit causes a switch to provide the second wireless communication component with access to the antenna while the circuit is in a power saving mode of operation, and, upon the circuit exiting the power saving mode of operation, determines whether the second wireless communication component is utilizing the antenna. The circuit, upon the circuit exiting the power saving mode of operation, applies a first set of arbitration rules when it is determined that the second wireless communication component is utilizing the antenna, and, upon the circuit exiting the power saving mode of operation, applies a second set of arbitration rules when it is determined that the second wireless communication component is not utilizing the antenna.

Method and apparatus for wireless arbiter power saving

An arbiter circuit receives a plurality of media access request signals from multiple protocol processing devices, and generates a plurality of media access grant indicators using i) the plurality of media access request signals, and ii) coexistence arbitration rules. A selector circuit receives the plurality of media access grant indicators from the arbiter circuit, and when the plurality of media access grant indicators indicate more than one protocol processing device is authorized to access an antenna, determines a compatibility of the more than one protocol processing device simultaneously accessing the antenna. The selector circuit, based on i) the plurality of media access grant indicators, and ii) the determined compatibility of the more than one protocol processing device simultaneously accessing the antenna, controls one or more switches to selectively enable antenna paths in a plurality of antenna paths coupled to the antenna.

Apparatus and method for selecting antenna paths for multiple wireless communication components

A radio frequency front-end includes a first path, second path, and third path each coupled between an antenna and a transceiver. The first path is configured to convey WLAN signals from the transceiver to the antenna for transmission. The second path is configured to convey received Bluetooth signals and received WLAN signals from the antenna to the transceiver. The third path is configured to convey Bluetooth signals from the transceiver to the antenna for transmission when a WLAN link is active and not in a power save state, and is configured to convey received Bluetooth signals from the antenna to the transceiver, and Bluetooth signals from the transceiver to the antenna for transmission, when the WLAN link is either inactive or in the power save state.

Bluetooth and WLAN coexistence architecture having a shared low noise amplifier

The present specification describes techniques for packet exchange arbitration. In some embodiments, a request is maintained to an arbiter at least until a packet exchange has been communicated and/or at least until a time-sensitive packet is communicated. In some other embodiments, a grant of a request is delayed at least until the communication of an isochronous packet.

Packet exchange arbitration for coexisting radios

In response to determining that a Bluetooth inquiry phase or a Bluetooth paging phase is beginning, a power save (PS) mode signal is sent from a first device to a second device via a wireless local area network (WLAN) communication link, wherein the PS mode signal indicates that the first device is in a WLAN PS mode. A PS poll signal is sent from the first device to the second device via the WLAN communication link in a gap between Bluetooth inquiry phase message transmissions during the Bluetooth inquiry phase or between Bluetooth paging phase message transmissions during the Bluetooth paging phase.

Method and apparatus for maintaining a wireless local area network connection during a Bluetooth inquiry phase or a Bluetooth paging phase

Circuits, architectures, systems, methods, algorithms, and software and/or firmware for selecting antenna paths between an antenna and multiple wireless communication protocol components (e.g., components configured to process radio frequency (RF) input and/or RF output signals according to one or more of wireless communication protocols). Exemplary circuits for selecting antenna paths include a plurality of media access grant inputs, a plurality of antenna path selection outputs for enabling one or more of the antenna paths, and a selector circuit configured to produce the antenna path selection outputs based on the media access grant inputs. Embodiments of the present invention advantageously provide for a flexible interface for selecting antenna signal paths between one or more shared antennas and multiple wireless communication protocol components.

Method and apparatus for antenna path selection for multiple wireless communication components

Bluetooth and wireless LAN arbitration is described. In embodiments, a communication device includes a Bluetooth device for Bluetooth communication according to Bluetooth protocol, and includes a wireless LAN device for network communication according to wireless network protocol. An antenna switching circuit connects the Bluetooth device to an antenna for the Bluetooth communication, and connects the wireless LAN device to the antenna for the network communication. An arbitration control system arbitrates when the Bluetooth device is connected to the antenna via the antenna switching circuit and when the wireless LAN device is connected to the antenna via the antenna switching circuit.

Bluetooth and wireless LAN arbitration

An apparatus has first and second wireless communication modules with respective first and second wireless communication signaling terminals. An arbiter is coupled to receive a request for access to an antenna from one of the first and second wireless communication modules. The arbiter is operable to cause the antenna to be coupled to one of the first and second wireless communication signaling terminals in response to the request, and a coexistence module is operable to prevent the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module.

Apparatus and method for coexistent wireless and bluetooth communication employing interruption of arbitration requests to allocate use of a shared antenna

A system including a first communication module to transmit or receive data via an antenna in accordance with a first communication standard; a second communication module to transmit or receive data via the antenna in accordance with a second communication standard; and an arbitration module. The arbitration module outputs a first mutual grant where both the first communication module and the second communication module are able to simultaneously transmit data via the antenna; a second mutual grant where both the first communication module and the second communication module are able to simultaneously receive data via the antenna; a third mutual grant where the first communication module and the second communication module are able to simultaneously transmit and receive data, respectively, via the antenna; and a fourth mutual grant where the first communication module and the second communication module are able to simultaneously receive and transmit data, respectively, via the antenna.

Growing community of inventors

Fremont, CA, United States of America

Gladys Yuen Yan Wong