Sibeam, Inc.

Silicon Image Gmbh

Kumar Mahesh

Jeffrey M Gilbert

Prakash Kamath

In Sung Cho

Rob Frizzell

Karthik Krishnaswami

Karen Wang

Chuen-Shen Bernard Shung

James Gilb

Jeffrey M Gllbert

Chuen-Shen (Bernard) Shung

Chih-Yuan Hsieh

Kyeong Ryu

A method and apparatus for identifying devices using a bitmap are disclosed. In one embodiment, the method comprises: accessing a memory to obtain one or more bitmaps that map each bit location in the bitmap to an index value, where one index value is assigned to each remote wireless media device of a wireless network in a wireless communication system; and examining those bitmaps and determining at least one characteristic of a remote wireless media device and a device identifier that identifies the remote wireless media device in the wireless network based on the bit position in those bitmaps.

Bitmap device identification in a wireless communication system

An apparatus, system and method for performing dispatch operations using a signal physical interface are disclosed. In one embodiment, the apparatus is for use in a wireless communication system for communicating with a wireless network and comprises a host processor, a transceiver, a physical interface coupling the host processor and the transceiver, and a memory accessible by the host processor and the transceiver to exchange information between the host processor and the transceiver. The transceiver is operable to store data in the memory for the host processor to send data to the host processor using the memory and asserts a control signal to the host processor to notify the host processor that the memory contains data for the host processor, and the host processor is operable to access the memory to obtain the data thereafter. The data is associated with a remote device in the wireless network and is stored as one or more packets at a first storage location in the memory with a first identifier identifying the remote device.

Dispatch capability using a single physical interface

A media access controller (MAC) generates a composite packet having an optimized format for carrying audio, video, and data traffic. A header portion of the composite packet is encoded separately from a data portion of the composite packet. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.

Wireless HD MAC frame format

A method and apparatus for initializing a transceiver in a wireless communication system. In one embodiment, a method for initializing a transceiver that is part of an apparatus for use in a wireless communication system for communicating with WirelessHD devices in a wireless network, where the apparatus comprises a host processor; a transceiver; a physical interface coupling the host processor and the transceiver; and a memory accessible by the host processor and the transceiver to exchange information between the host processor and the transceiver, the initialization method comprising resetting the transceiver by initializing internal hardware and software subsystems of the transceiver; after resetting the transceiver, the transceiver entering a configuration state to configure the transceiver; configuring the transceiver, such that the transceiver is configured as part of initialization; and after configuration, the transceiver entering a wait enable state during which the transceiver waits for its wireless interface to be enabled before wireless operation of the transceiver becomes active.

Initializing a transceiver in a wireless communication system

A wireless station has a media access controller (MAC) and a concurrent association manager. The concurrent association manager concurrently associates the wireless station with two or more wireless coordinators. Each wireless coordinator forms its respective wireless network. The concurrent association manager sets the wireless station in a sleep mode operation with respect each wireless network and detects a selection for operation with respect to one of the wireless coordinator.

Concurrent association with multiple wireless networks

A method and apparatus for performing device discovery in a wireless communication system is described. In one embodiment, a device discovery process is used in a wireless communication system having an apparatus for communicating with WirelessHD devices in a wireless network, where the apparatus comprises a host processor; a transceiver; a physical interface coupling the host processor and the transceiver; and a memory accessible by the host processor and the transceiver to exchange information between the host processor and the transceiver, and the device discovery process comprises: discovering a remote wireless device in the wireless network; notifying, by the transceiver, the host processor of the remote wireless device; requesting, under control of the transceiver, capability information from the remote wireless device prior to receiving a request from the host processor for the capability information; buffering, under control of the transceiver, the capability information before the capability information is requested by the host processor; receiving a capability request from the host processor; and providing the host processor access to the capability information.

Device discovery in a wireless communication system

A method and apparatus for performing connection control in a wireless communication system is described. In one embodiment, an apparatus is used in a wireless communication system for communicating with a wireless network, and the apparatus comprises a host processor, a transceiver, a physical interface coupling the host processor and the transceiver; and a memory accessible by the host processor and the transceiver to exchange information between the host processor and the transceiver. The memory has multiple banks that include: a first bank to store information being transferred from the host processor to the transceiver, and a second bank to store information being transferred from the transceiver to the host processor, the second bank being different than the first bank, to facilitate full-duplex communication of packet data between the host processor and the transceiver.

Connection control in a wireless communication system

A wireless content protection system includes a coordinator, a source device, and a sink device. The coordinator includes a scheduler. The source and sink devices each have a content protection manager. One of the content protection manager allocates and releases bandwidth via the coordinator for a test message and a response message for a round-trip time computation. The test message is transmitted in a source-to-sink channel time block. The response message is transmitted in a sink-to-source channel time block. The round-trip time is the period between the end of the source-to-sink channel time block and the beginning of the sink-to-source channel time block.

Growing community of inventors

San Ramon, CA, United States of America

Kumar Mahesh