Method for and apparatus to extract a frequency reference, a tim

Details Method for and apparatus to extract a frequency reference, a tim Method for and apparatus to extract a frequency reference, a tim

1994-02-25

1996-11-19

Bocure, Tesfaldet

Pulse or digital communications

Systems using alternating or pulsating current

375238, 375356, 375295, 375316, 455 561, H04L 2700, H04L 700, H03K 708, H03K 908

Patent

active

055770711

ABSTRACT:
A frequency reference, a time reference and data may be provided on, and subsequently extracted from, a single information stream. To achieve this a modulator 102 generates the single information stream by modulating the data on the frequency reference and pre-empting the data modulation to modulate the time reference on the frequency reference. This single information stream is then provided on a single bus 106 which is coupled to a plurality of base stations 103-105. The base stations 103-105 each include a demodulator 107-109, which recovers the frequency reference 117, the time reference 118, and/or the data 116, from the single information stream.

REFERENCES:
patent: 4897854 (1990-01-01), Harris et al.
patent: 5055845 (1991-10-01), Ridkosil
patent: 5088111 (1992-02-01), McNamara et al.
patent: 5140611 (1992-08-01), Jones et al.

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