Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HIGH-RELIABILITY COMPUTER INTERFACE FOR WIRELESS INPUT DEVICES
Document Type and Number:
WIPO Patent Application WO2005089387
Kind Code:
A3
Abstract:
A computing system (100) wherein communication between a host computer (102) and peripheral units (104, 106), e.g. computer mouse (106) and keyboard (104), is performed using RF signals. The host computer (102) and the peripheral units (104, 106) each contain a transceiver for managing and transmitting the RF communication messages. An acknowledgement is sent by the receiving transceiver to the sending transceiver to signify that the message was successfully received. If no acknowledgement is received by the sending transceiver, a subsequent RF communication message is sent until an acknowledgement is received. A sleep mode is invoked between messages to conserve battery power in the peripheral units (104, 106), and the peripheral units (104, 106) send a report message to the host (102) when awaking periodically, or by a user command, from the sleep mode signifying that the peripheral unit (104, 106) is active and ready to send or receive messages.

Inventors:
MORRIS GEORGE MARTIN (US)
ANANDAKUMAR KRISHNASAMY (US)
SINGAMSETTY SURESH KUMAR (US)
KWAN DENNIS CHING CHUNG (US)
LAW HOCK THYE (US)
Application Number:
PCT/US2005/008775
Publication Date:
December 22, 2005
Filing Date:
March 16, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
JAALAA INC (US)
MORRIS GEORGE MARTIN (US)
ANANDAKUMAR KRISHNASAMY (US)
SINGAMSETTY SURESH KUMAR (US)
KWAN DENNIS CHING CHUNG (US)
LAW HOCK THYE (US)
International Classes:
G06F1/32; G06F3/023; G06F3/038; G06F13/12; G06F13/38; G09G5/08; H04B7/00; H04B7/005; H04J1/16; H04L5/14; H04L9/00; H04L9/18; (IPC1-7): H04J1/16; H04B7/00
Foreign References:
US20030142631A12003-07-31
US5696903A1997-12-09
US6195712B12001-02-27
Download PDF: