H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/100, 321/75
H04L 25/20 (2006.01) G08C 15/00 (2006.01) H04B 1/74 (2006.01) H04B 3/44 (2006.01) H04L 7/04 (2006.01) H04L 12/40 (2006.01) H04L 25/24 (2006.01) H04L 7/00 (2006.01) H04L 7/10 (2006.01)
Patent
CA 1200868
ABSTRACT OF THE DISCLOSURE A circuit for boosting digital data signals in a telemetry system for sensing remote physical events and for transmitting and boosting a digital data signal representing the sensed events on a transmission line. The telemetry system comprises a master clock and a plurality of sensing stations for, sensing local data. The sensing stations inject local data onto the transmission line as a digital data signal, and a con- troller/receiver receives the digital data. The master clock initializes the system timing and generates a sync signal. Each sensing station includes a booster subsystem for receiving the local digital data and for injecting the digital data onto the transmission line as a digital data signal. During system start-up, each booster subsystem claims a slot, in accordance with an organizational process, for injecting the digital data signal onto the transmission line. The booster sub- system in each sensing station further includes a boos- ter circuit for boosting the digital data signals which are propagating on the transmission line, as well as the sync signal. The booster circuit comprises a nega- tive impedance bistable device for enhancing the ampli- tude and rise time of the digital data signal. Each booster subsystem further includes a switching mode regulator circuit for converting a supply current on the transmission line to a level voltage, thereby pro- viding local power to the components of the sensing sta- tion.
415212
Gould Inc.
Mcfadden Fincham
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