Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-08-25
2000-05-16
Negash, Kinfe-Michael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359159, 359172, H04B 1000
Patent
active
060645024
ABSTRACT:
An omni-directional wireless infrared transceiver and system for communicating electronic data. Each transceiver comprises a receiving lens capable of detecting infrared signals of low power and low incident angle, an LED transmitting element or array, signal peak detection circuitry with dynamic threshold adjustment, signal processing circuitry, and means for electronically connecting the transceiver with a device. The transceivers can communicate without requiring a line-of-sight or obstacle-free communication path. The system is ideally suited for infrared connections in a local environment between portable computers and peripherals such as modems, printers, and keyboards. The transceivers may be embodied with removable connectors or may be integrated permanently within a device. Further, an operator may configure the system for directional data communication in situations where omni-directional communication is undesirable.
REFERENCES:
patent: 5099346 (1992-03-01), Lee et al.
patent: 5566022 (1996-10-01), Segev
patent: 5757528 (1998-05-01), Bradley et al.
patent: 5777768 (1998-07-01), Korevarr
patent: 5861969 (1999-01-01), Yasuda
Burns Clay
Cosgrove Martin
Kanojia Chaitanya
Enderlin Inc.
Negash Kinfe-Michael
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