Coded data generation or conversion – Digital code to digital code converters – To or from nrz codes
Patent
1992-10-19
1997-10-28
Young, Brian K.
Coded data generation or conversion
Digital code to digital code converters
To or from nrz codes
341 13, H03M 504
Patent
active
056821573
ABSTRACT:
Disclosed is a system for rapid, wireless communication of electrically-generated and detected, serial digital data signals via a plurality of infrared (or other compatible wireless medium) transceivers. Signals are communicated without electrical connection among computers, fax machines, computer peripheral equipment, or may be employed within self-contained communication, control data-acquisition, and/or display systems. The system operates at predetermined maximum data rates and sub-multiples thereof. The disclosed transceivers can be joined with additional circuits, to form an arrangement that operates as a wireless modem. In each arrangement, light is continuously modulated at either of two precise multiples of the predetermined maximum data rate, and is synchronized to transmitted-data transitions. Upon receipt of light-signals thus produced, the system's receiving transceiver synchronizes received-data electrical output signals to the received modulated light signals. Received light-modulation periods are measured and verified continuously within each data-state interval, minimizing data-delay times and transition-timing distortions in the system's electrical output signals.
REFERENCES:
patent: 4868569 (1989-09-01), Montgomery
patent: 5127023 (1992-06-01), Tash et al.
patent: 5222105 (1993-06-01), Kinney et al.
patent: 5243628 (1993-09-01), Moritoki et al.
Asmussen Daniel R.
Dillon Thomas P.
Shride Michael D.
Sloate James A.
Fasirand Corporation
Young Brian K.
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