Data communication interface and communication devices incorporating same

a data communication interface and communication device technology, applied in the field of data communication interfaces, can solve the problems of single host for a wusb, less than optimal use of device resources in many instances,
US20070294456A1Inactive Publication Date: 2007-12-20HONG KONG APPLIED SCI & TECH RES INST
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HONG KONG APPLIED SCI & TECH RES INST
Publication Date
2007-12-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

A communication interface facilitates connection of a plurality of wireless USB compatible hosts with at least a WUSB device in a wireless USB environment at the same time. The communication interface includes a host detector that detects the presence of an active host or a plurality of active hosts, a host communicator for establishing wireless USB connection with a plurality of hosts, and a controller for causing time division multiplexed (TDM) data communication between active hosts and at least one device.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to data communication interface and, more particularly, to data communication interface for WUSB applications and communication devices incorporating same.BACKGROUND OF THE INVENTION

[0002] Wireless USB (WUSB) is a logical evolution of USB and has become an important standard for many applications because of its various advantages, including flexibility in deployment. The physical layer (“PHY”) of WUSB is described in the Multiband OFDM Aliance (MBOA) UWB PHY specification-“Multiband OFDM Physical Layer Specification” (Revision 1.) Jan. 14, 2005, WiMedia Alliance, which is incorporated herein by reference. PHY currently supports data rates of 53.3, 80, 106.7, 160, 200, 320, 400 and 480 Mb / s and multiple channels. PHY also provides error detection and correction schemes to provide a robust communication channel. Logically, WUSB is a polled, TDMA based protocol, similar to wired USB. In a WUSB system, the host initiates all data ...

Claims

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